[GIT PULL 00/25] perf/core improvements and fixes

[GIT PULL 00/25] perf/core improvements and fixes

[Arnaldo Carvalho de Melo]

Hi Ingo,

	Please consider pulling,

- Arnaldo

The following changes since commit 152fefa921535665f95840c08062844ab2f5593e:

  Merge tag 'perf-core-for-mingo' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/core (2013-01-31 10:20:14 +0100)

are available in the git repository at:


  git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux tags/perf-core-for-mingo

for you to fetch changes up to 2ac3634a7e1c8eedc961030c87c5c36ebd5bbf8e:

  perf: Document the ABI of perf sysfs entries (2013-01-31 13:07:51 -0300)

----------------------------------------------------------------
perf/core improvements and fixes:

. Make some POWER7 events available in sysfs, equivalent to
  what was done on x86, from Sukadev Bhattiprolu.

. Add event group view, from Namyung Kim:

  To use it, 'perf record' should group events when recording. And then perf
  report parses the saved group relation from file header and prints them
  together if --group option is provided.  You can use 'perf evlist' command to
  see event group information:

    $ perf record -e '{ref-cycles,cycles}' noploop 1
    [ perf record: Woken up 2 times to write data ]
    [ perf record: Captured and wrote 0.385 MB perf.data (~16807 samples) ]

    $ perf evlist --group
    {ref-cycles,cycles}

  With this example, default perf report will show you each event
  separately like this:

    $ perf report
    ...
    # group: {ref-cycles,cycles}
    # ========
    # Samples: 3K of event 'ref-cycles'
    # Event count (approx.): 3153797218
    #
    # Overhead  Command      Shared Object                      Symbol
    # ........  .......  .................  ..........................
        99.84%  noploop  noploop            [.] main
         0.07%  noploop  ld-2.15.so         [.] strcmp
         0.03%  noploop  [kernel.kallsyms]  [k] timerqueue_del
         0.03%  noploop  [kernel.kallsyms]  [k] sched_clock_cpu
         0.02%  noploop  [kernel.kallsyms]  [k] account_user_time
         0.01%  noploop  [kernel.kallsyms]  [k] __alloc_pages_nodemask
         0.00%  noploop  [kernel.kallsyms]  [k] native_write_msr_safe

    # Samples: 3K of event 'cycles'
    # Event count (approx.): 3722310525
    #
    # Overhead  Command      Shared Object                     Symbol
    # ........  .......  .................  .........................
        99.76%  noploop  noploop            [.] main
         0.11%  noploop  [kernel.kallsyms]  [k] _raw_spin_lock
         0.06%  noploop  [kernel.kallsyms]  [k] find_get_page
         0.03%  noploop  [kernel.kallsyms]  [k] sched_clock_cpu
         0.02%  noploop  [kernel.kallsyms]  [k] rcu_check_callbacks
         0.02%  noploop  [kernel.kallsyms]  [k] __current_kernel_time
         0.00%  noploop  [kernel.kallsyms]  [k] native_write_msr_safe

  In this case the event group information will be shown in the end of
  header area.  So you can use --group option to enable event group view.

    $ perf report --group
    ...
    # group: {ref-cycles,cycles}
    # ========
    # Samples: 7K of event 'anon group { ref-cycles, cycles }'
    # Event count (approx.): 6876107743
    #
    #         Overhead  Command      Shared Object                      Symbol
    # ................  .......  .................  ..........................
        99.84%  99.76%  noploop  noploop            [.] main
         0.07%   0.00%  noploop  ld-2.15.so         [.] strcmp
         0.03%   0.00%  noploop  [kernel.kallsyms]  [k] timerqueue_del
         0.03%   0.03%  noploop  [kernel.kallsyms]  [k] sched_clock_cpu
         0.02%   0.00%  noploop  [kernel.kallsyms]  [k] account_user_time
         0.01%   0.00%  noploop  [kernel.kallsyms]  [k] __alloc_pages_nodemask
         0.00%   0.00%  noploop  [kernel.kallsyms]  [k] native_write_msr_safe
         0.00%   0.11%  noploop  [kernel.kallsyms]  [k] _raw_spin_lock
         0.00%   0.06%  noploop  [kernel.kallsyms]  [k] find_get_page
         0.00%   0.02%  noploop  [kernel.kallsyms]  [k] rcu_check_callbacks
         0.00%   0.02%  noploop  [kernel.kallsyms]  [k] __current_kernel_time

  As you can see the Overhead column now contains both of ref-cycles and
  cycles and header line shows group information also - 'anon group {
  ref-cycles, cycles }'.  The output is sorted by period of group leader
  first.

  If perf.data file doesn't contain group information, this --group
  option does nothing.  So if you want enable event group view by
  default you can set it in ~/.perfconfig file:

    $ cat ~/.perfconfig
    [report]
    group = true

  It can be overridden with command line if you want:

    $ perf report --no-group

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

----------------------------------------------------------------
Arnaldo Carvalho de Melo (2):
      perf top: Stop using exit()
      perf top: Delete maps on exit

Namhyung Kim (18):
      perf tools: Keep group information
      perf tests: Add group test conditions
      perf header: Add HEADER_GROUP_DESC feature
      perf report: Make another loop for linking group hists
      perf hists: Resort hist entries using group members for output
      perf ui/hist: Consolidate hpp helpers
      perf hists browser: Convert hpp helpers to a function
      perf gtk/browser: Convert hpp helpers to a function
      perf ui/hist: Add support for event group view
      perf hists browser: Move coloring logic to hpp functions
      perf hists browser: Add suppport for event group view
      perf gtk/browser: Add support for event group view
      perf gtk/browser: Trim column header string when event group enabled
      perf report: Bypass non-leader events when event group is enabled
      perf report: Show group description when event group is enabled
      perf report: Add --group option
      perf report: Add report.group config option
      perf evlist: Add --group option

Sukadev Bhattiprolu (5):
      perf/Power7: Use macros to identify perf events
      perf: Make EVENT_ATTR global
      perf/POWER7: Make generic event translations available in sysfs
      perf/POWER7: Make some POWER7 events available in sysfs
      perf: Document the ABI of perf sysfs entries

 .../testing/sysfs-bus-event_source-devices-events  |  62 +++++
 arch/powerpc/include/asm/perf_event_server.h       |  26 ++
 arch/powerpc/perf/core-book3s.c                    |  12 +
 arch/powerpc/perf/power7-pmu.c                     |  80 +++++-
 arch/x86/kernel/cpu/perf_event.c                   |  13 +-
 include/linux/perf_event.h                         |  11 +
 tools/perf/Documentation/perf-evlist.txt           |   4 +
 tools/perf/Documentation/perf-report.txt           |   3 +
 tools/perf/builtin-evlist.c                        |   7 +
 tools/perf/builtin-record.c                        |   3 +
 tools/perf/builtin-report.c                        |  47 +++-
 tools/perf/builtin-top.c                           |  62 +++--
 tools/perf/tests/parse-events.c                    |  28 ++
 tools/perf/ui/browsers/hists.c                     | 217 ++++++++++++---
 tools/perf/ui/gtk/hists.c                          | 130 +++++++--
 tools/perf/ui/hist.c                               | 306 ++++++++++-----------
 tools/perf/ui/stdio/hist.c                         |   2 +
 tools/perf/util/evlist.c                           |   7 +-
 tools/perf/util/evlist.h                           |   1 +
 tools/perf/util/evsel.c                            |  49 +++-
 tools/perf/util/evsel.h                            |  16 ++
 tools/perf/util/header.c                           | 164 +++++++++++
 tools/perf/util/header.h                           |   2 +
 tools/perf/util/hist.c                             |  59 +++-
 tools/perf/util/parse-events.c                     |   1 +
 tools/perf/util/parse-events.h                     |   1 +
 tools/perf/util/parse-events.y                     |  10 +
 tools/perf/util/symbol.h                           |   3 +-
 28 files changed, 1059 insertions(+), 267 deletions(-)
 create mode 100644 Documentation/ABI/testing/sysfs-bus-event_source-devices-events

[PATCH 21/25] perf/Power7: Use macros to identify perf events

[Arnaldo Carvalho de Melo]

From: Sukadev Bhattiprolu <sukadev@linux.vnet.ibm.com>

Define and use macros to identify perf events codes This would make it
easier and more readable when these event codes need to be used in more
than one place.

Signed-off-by: Sukadev Bhattiprolu <sukadev@linux.vnet.ibm.com>
Acked-by: Jiri Olsa <jolsa@redhat.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Anton Blanchard <anton@au1.ibm.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Robert Richter <robert.richter@amd.com>
Cc: Stephane Eranian <eranian@google.com>
Cc: linuxppc-dev@ozlabs.org
Link: http://lkml.kernel.org/r/20130123062353.GB13720@us.ibm.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 arch/powerpc/perf/power7-pmu.c | 28 ++++++++++++++++++++--------
 1 file changed, 20 insertions(+), 8 deletions(-)

diff --git a/arch/powerpc/perf/power7-pmu.c b/arch/powerpc/perf/power7-pmu.c
index 2ee01e3..eebb36d 100644
--- a/arch/powerpc/perf/power7-pmu.c
+++ b/arch/powerpc/perf/power7-pmu.c
@@ -51,6 +51,18 @@
 #define MMCR1_PMCSEL_MSK	0xff
 
 /*
+ * Power7 event codes.
+ */
+#define	PME_PM_CYC			0x1e
+#define	PME_PM_GCT_NOSLOT_CYC		0x100f8
+#define	PME_PM_CMPLU_STALL		0x4000a
+#define	PME_PM_INST_CMPL		0x2
+#define	PME_PM_LD_REF_L1		0xc880
+#define	PME_PM_LD_MISS_L1		0x400f0
+#define	PME_PM_BRU_FIN			0x10068
+#define	PME_PM_BRU_MPRED		0x400f6
+
+/*
  * Layout of constraint bits:
  * 6666555555555544444444443333333333222222222211111111110000000000
  * 3210987654321098765432109876543210987654321098765432109876543210
@@ -307,14 +319,14 @@ static void power7_disable_pmc(unsigned int pmc, unsigned long mmcr[])
 }
 
 static int power7_generic_events[] = {
-	[PERF_COUNT_HW_CPU_CYCLES] = 0x1e,
-	[PERF_COUNT_HW_STALLED_CYCLES_FRONTEND] = 0x100f8, /* GCT_NOSLOT_CYC */
-	[PERF_COUNT_HW_STALLED_CYCLES_BACKEND] = 0x4000a,  /* CMPLU_STALL */
-	[PERF_COUNT_HW_INSTRUCTIONS] = 2,
-	[PERF_COUNT_HW_CACHE_REFERENCES] = 0xc880,	/* LD_REF_L1_LSU*/
-	[PERF_COUNT_HW_CACHE_MISSES] = 0x400f0,		/* LD_MISS_L1	*/
-	[PERF_COUNT_HW_BRANCH_INSTRUCTIONS] = 0x10068,	/* BRU_FIN	*/
-	[PERF_COUNT_HW_BRANCH_MISSES] = 0x400f6,	/* BR_MPRED	*/
+	[PERF_COUNT_HW_CPU_CYCLES] =			PME_PM_CYC,
+	[PERF_COUNT_HW_STALLED_CYCLES_FRONTEND] =	PME_PM_GCT_NOSLOT_CYC,
+	[PERF_COUNT_HW_STALLED_CYCLES_BACKEND] =	PME_PM_CMPLU_STALL,
+	[PERF_COUNT_HW_INSTRUCTIONS] =			PME_PM_INST_CMPL,
+	[PERF_COUNT_HW_CACHE_REFERENCES] =		PME_PM_LD_REF_L1,
+	[PERF_COUNT_HW_CACHE_MISSES] =			PME_PM_LD_MISS_L1,
+	[PERF_COUNT_HW_BRANCH_INSTRUCTIONS] =		PME_PM_BRU_FIN,
+	[PERF_COUNT_HW_BRANCH_MISSES] =			PME_PM_BRU_MPRED,
 };
 
 #define C(x)	PERF_COUNT_HW_CACHE_##x
-- 
1.8.1.1.361.gec3ae6e

[PATCH 22/25] perf: Make EVENT_ATTR global

[Arnaldo Carvalho de Melo]

From: Sukadev Bhattiprolu <sukadev@linux.vnet.ibm.com>

Rename EVENT_ATTR() to PMU_EVENT_ATTR() and make it global so it is
available to all architectures.

Further to allow architectures flexibility, have PMU_EVENT_ATTR() pass
in the variable name as a parameter.

Changelog[v2]
	- [Jiri Olsa] No need to define PMU_EVENT_PTR()

Signed-off-by: Sukadev Bhattiprolu <sukadev@linux.vnet.ibm.com>
Acked-by: Jiri Olsa <jolsa@redhat.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Anton Blanchard <anton@au1.ibm.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Robert Richter <robert.richter@amd.com>
Cc: Stephane Eranian <eranian@google.com>
Cc: linuxppc-dev@ozlabs.org
Link: http://lkml.kernel.org/r/20130123062422.GC13720@us.ibm.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 arch/x86/kernel/cpu/perf_event.c | 13 +++----------
 include/linux/perf_event.h       | 11 +++++++++++
 2 files changed, 14 insertions(+), 10 deletions(-)

diff --git a/arch/x86/kernel/cpu/perf_event.c b/arch/x86/kernel/cpu/perf_event.c
index 6774c17..c0df5ed2 100644
--- a/arch/x86/kernel/cpu/perf_event.c
+++ b/arch/x86/kernel/cpu/perf_event.c
@@ -1310,11 +1310,6 @@ static struct attribute_group x86_pmu_format_group = {
 	.attrs = NULL,
 };
 
-struct perf_pmu_events_attr {
-	struct device_attribute attr;
-	u64 id;
-};
-
 /*
  * Remove all undefined events (x86_pmu.event_map(id) == 0)
  * out of events_attr attributes.
@@ -1348,11 +1343,9 @@ static ssize_t events_sysfs_show(struct device *dev, struct device_attribute *at
 #define EVENT_VAR(_id)  event_attr_##_id
 #define EVENT_PTR(_id) &event_attr_##_id.attr.attr
 
-#define EVENT_ATTR(_name, _id)					\
-static struct perf_pmu_events_attr EVENT_VAR(_id) = {		\
-	.attr = __ATTR(_name, 0444, events_sysfs_show, NULL),	\
-	.id   =  PERF_COUNT_HW_##_id,				\
-};
+#define EVENT_ATTR(_name, _id)						\
+	PMU_EVENT_ATTR(_name, EVENT_VAR(_id), PERF_COUNT_HW_##_id,	\
+			events_sysfs_show)
 
 EVENT_ATTR(cpu-cycles,			CPU_CYCLES		);
 EVENT_ATTR(instructions,		INSTRUCTIONS		);
diff --git a/include/linux/perf_event.h b/include/linux/perf_event.h
index 6bfb2faa..42adf01 100644
--- a/include/linux/perf_event.h
+++ b/include/linux/perf_event.h
@@ -817,6 +817,17 @@ do {									\
 } while (0)
 
 
+struct perf_pmu_events_attr {
+	struct device_attribute attr;
+	u64 id;
+};
+
+#define PMU_EVENT_ATTR(_name, _var, _id, _show)				\
+static struct perf_pmu_events_attr _var = {				\
+	.attr = __ATTR(_name, 0444, _show, NULL),			\
+	.id   =  _id,							\
+};
+
 #define PMU_FORMAT_ATTR(_name, _format)					\
 static ssize_t								\
 _name##_show(struct device *dev,					\
-- 
1.8.1.1.361.gec3ae6e

[PATCH 23/25] perf/POWER7: Make generic event translations available in sysfs

[Arnaldo Carvalho de Melo]

From: Sukadev Bhattiprolu <sukadev@linux.vnet.ibm.com>

Make the generic perf events in POWER7 available via sysfs.

	$ ls /sys/bus/event_source/devices/cpu/events
	branch-instructions
	branch-misses
	cache-misses
	cache-references
	cpu-cycles
	instructions
	stalled-cycles-backend
	stalled-cycles-frontend

	$ cat /sys/bus/event_source/devices/cpu/events/cache-misses
	event=0x400f0

This patch is based on commits that implement this functionality on x86.
Eg:
	commit a47473939db20e3961b200eb00acf5fcf084d755
	Author: Jiri Olsa <jolsa@redhat.com>
	Date:   Wed Oct 10 14:53:11 2012 +0200

	    perf/x86: Make hardware event translations available in sysfs

Changelog:[v2]
	[Jiri Osla] Drop EVENT_ID() macro since it is only used once.

Signed-off-by: Sukadev Bhattiprolu <sukadev@linux.vnet.ibm.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Anton Blanchard <anton@au1.ibm.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Robert Richter <robert.richter@amd.com>
Cc: Stephane Eranian <eranian@google.com>
Cc: linuxppc-dev@ozlabs.org
Link: http://lkml.kernel.org/r/20130123062454.GD13720@us.ibm.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 Documentation/ABI/stable/sysfs-devices-cpu-events |  0
 arch/powerpc/include/asm/perf_event_server.h      | 23 +++++++++++++++
 arch/powerpc/perf/core-book3s.c                   | 12 ++++++++
 arch/powerpc/perf/power7-pmu.c                    | 34 +++++++++++++++++++++++
 4 files changed, 69 insertions(+)
 create mode 100644 Documentation/ABI/stable/sysfs-devices-cpu-events

diff --git a/Documentation/ABI/stable/sysfs-devices-cpu-events b/Documentation/ABI/stable/sysfs-devices-cpu-events
new file mode 100644
index 0000000..e69de29
diff --git a/arch/powerpc/include/asm/perf_event_server.h b/arch/powerpc/include/asm/perf_event_server.h
index 9710be3..b9b6c55 100644
--- a/arch/powerpc/include/asm/perf_event_server.h
+++ b/arch/powerpc/include/asm/perf_event_server.h
@@ -11,6 +11,7 @@
 
 #include <linux/types.h>
 #include <asm/hw_irq.h>
+#include <linux/device.h>
 
 #define MAX_HWEVENTS		8
 #define MAX_EVENT_ALTERNATIVES	8
@@ -35,6 +36,7 @@ struct power_pmu {
 	void		(*disable_pmc)(unsigned int pmc, unsigned long mmcr[]);
 	int		(*limited_pmc_event)(u64 event_id);
 	u32		flags;
+	const struct attribute_group	**attr_groups;
 	int		n_generic;
 	int		*generic_events;
 	int		(*cache_events)[PERF_COUNT_HW_CACHE_MAX]
@@ -109,3 +111,24 @@ extern unsigned long perf_instruction_pointer(struct pt_regs *regs);
  * If an event_id is not subject to the constraint expressed by a particular
  * field, then it will have 0 in both the mask and value for that field.
  */
+
+extern ssize_t power_events_sysfs_show(struct device *dev,
+				struct device_attribute *attr, char *page);
+
+/*
+ * EVENT_VAR() is same as PMU_EVENT_VAR with a suffix.
+ *
+ * Having a suffix allows us to have aliases in sysfs - eg: the generic
+ * event 'cpu-cycles' can have two entries in sysfs: 'cpu-cycles' and
+ * 'PM_CYC' where the latter is the name by which the event is known in
+ * POWER CPU specification.
+ */
+#define	EVENT_VAR(_id, _suffix)		event_attr_##_id##_suffix
+#define	EVENT_PTR(_id, _suffix)		&EVENT_VAR(_id, _suffix)
+
+#define	EVENT_ATTR(_name, _id, _suffix)					\
+	PMU_EVENT_ATTR(_name, EVENT_VAR(_id, _suffix), PME_PM_##_id,	\
+			power_events_sysfs_show)
+
+#define	GENERIC_EVENT_ATTR(_name, _id)	EVENT_ATTR(_name, _id, _g)
+#define	GENERIC_EVENT_PTR(_id)		EVENT_PTR(_id, _g)
diff --git a/arch/powerpc/perf/core-book3s.c b/arch/powerpc/perf/core-book3s.c
index aa2465e..fa476d5 100644
--- a/arch/powerpc/perf/core-book3s.c
+++ b/arch/powerpc/perf/core-book3s.c
@@ -1305,6 +1305,16 @@ static int power_pmu_event_idx(struct perf_event *event)
 	return event->hw.idx;
 }
 
+ssize_t power_events_sysfs_show(struct device *dev,
+				struct device_attribute *attr, char *page)
+{
+	struct perf_pmu_events_attr *pmu_attr;
+
+	pmu_attr = container_of(attr, struct perf_pmu_events_attr, attr);
+
+	return sprintf(page, "event=0x%02llx\n", pmu_attr->id);
+}
+
 struct pmu power_pmu = {
 	.pmu_enable	= power_pmu_enable,
 	.pmu_disable	= power_pmu_disable,
@@ -1537,6 +1547,8 @@ int __cpuinit register_power_pmu(struct power_pmu *pmu)
 	pr_info("%s performance monitor hardware support registered\n",
 		pmu->name);
 
+	power_pmu.attr_groups = ppmu->attr_groups;
+
 #ifdef MSR_HV
 	/*
 	 * Use FCHV to ignore kernel events if MSR.HV is set.
diff --git a/arch/powerpc/perf/power7-pmu.c b/arch/powerpc/perf/power7-pmu.c
index eebb36d..269bf24 100644
--- a/arch/powerpc/perf/power7-pmu.c
+++ b/arch/powerpc/perf/power7-pmu.c
@@ -374,6 +374,39 @@ static int power7_cache_events[C(MAX)][C(OP_MAX)][C(RESULT_MAX)] = {
 	},
 };
 
+
+GENERIC_EVENT_ATTR(cpu-cycles,			CYC);
+GENERIC_EVENT_ATTR(stalled-cycles-frontend,	GCT_NOSLOT_CYC);
+GENERIC_EVENT_ATTR(stalled-cycles-backend,	CMPLU_STALL);
+GENERIC_EVENT_ATTR(instructions,		INST_CMPL);
+GENERIC_EVENT_ATTR(cache-references,		LD_REF_L1);
+GENERIC_EVENT_ATTR(cache-misses,		LD_MISS_L1);
+GENERIC_EVENT_ATTR(branch-instructions,		BRU_FIN);
+GENERIC_EVENT_ATTR(branch-misses,		BRU_MPRED);
+
+static struct attribute *power7_events_attr[] = {
+	GENERIC_EVENT_PTR(CYC),
+	GENERIC_EVENT_PTR(GCT_NOSLOT_CYC),
+	GENERIC_EVENT_PTR(CMPLU_STALL),
+	GENERIC_EVENT_PTR(INST_CMPL),
+	GENERIC_EVENT_PTR(LD_REF_L1),
+	GENERIC_EVENT_PTR(LD_MISS_L1),
+	GENERIC_EVENT_PTR(BRU_FIN),
+	GENERIC_EVENT_PTR(BRU_MPRED),
+	NULL
+};
+
+
+static struct attribute_group power7_pmu_events_group = {
+	.name = "events",
+	.attrs = power7_events_attr,
+};
+
+static const struct attribute_group *power7_pmu_attr_groups[] = {
+	&power7_pmu_events_group,
+	NULL,
+};
+
 static struct power_pmu power7_pmu = {
 	.name			= "POWER7",
 	.n_counter		= 6,
@@ -385,6 +418,7 @@ static struct power_pmu power7_pmu = {
 	.get_alternatives	= power7_get_alternatives,
 	.disable_pmc		= power7_disable_pmc,
 	.flags			= PPMU_ALT_SIPR,
+	.attr_groups		= power7_pmu_attr_groups,
 	.n_generic		= ARRAY_SIZE(power7_generic_events),
 	.generic_events		= power7_generic_events,
 	.cache_events		= &power7_cache_events,
-- 
1.8.1.1.361.gec3ae6e

[PATCH 24/25] perf/POWER7: Make some POWER7 events available in sysfs

[Arnaldo Carvalho de Melo]

From: Sukadev Bhattiprolu <sukadev@linux.vnet.ibm.com>

Make some POWER7-specific perf events available in sysfs.

	$ /bin/ls -1 /sys/bus/event_source/devices/cpu/events/
	branch-instructions
	branch-misses
	cache-misses
	cache-references
	cpu-cycles
	instructions
	PM_BRU_FIN
	PM_BRU_MPRED
	PM_CMPLU_STALL
	PM_CYC
	PM_GCT_NOSLOT_CYC
	PM_INST_CMPL
	PM_LD_MISS_L1
	PM_LD_REF_L1
	stalled-cycles-backend
	stalled-cycles-frontend

where the 'PM_*' events are POWER specific and the others are the
generic events.

This will enable users to specify these events with their symbolic
names rather than with their raw code.

	perf stat -e 'cpu/PM_CYC' ...

Signed-off-by: Sukadev Bhattiprolu <sukadev@linux.vnet.ibm.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Anton Blanchard <anton@au1.ibm.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Robert Richter <robert.richter@amd.com>
Cc: Stephane Eranian <eranian@google.com>
Cc: linuxppc-dev@ozlabs.org
Link: http://lkml.kernel.org/r/20130123062528.GE13720@us.ibm.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 arch/powerpc/include/asm/perf_event_server.h |  3 +++
 arch/powerpc/perf/power7-pmu.c               | 18 ++++++++++++++++++
 2 files changed, 21 insertions(+)

diff --git a/arch/powerpc/include/asm/perf_event_server.h b/arch/powerpc/include/asm/perf_event_server.h
index b9b6c55..b29fcc6 100644
--- a/arch/powerpc/include/asm/perf_event_server.h
+++ b/arch/powerpc/include/asm/perf_event_server.h
@@ -132,3 +132,6 @@ extern ssize_t power_events_sysfs_show(struct device *dev,
 
 #define	GENERIC_EVENT_ATTR(_name, _id)	EVENT_ATTR(_name, _id, _g)
 #define	GENERIC_EVENT_PTR(_id)		EVENT_PTR(_id, _g)
+
+#define	POWER_EVENT_ATTR(_name, _id)	EVENT_ATTR(PM_##_name, _id, _p)
+#define	POWER_EVENT_PTR(_id)		EVENT_PTR(_id, _p)
diff --git a/arch/powerpc/perf/power7-pmu.c b/arch/powerpc/perf/power7-pmu.c
index 269bf24..b554879 100644
--- a/arch/powerpc/perf/power7-pmu.c
+++ b/arch/powerpc/perf/power7-pmu.c
@@ -384,6 +384,15 @@ GENERIC_EVENT_ATTR(cache-misses,		LD_MISS_L1);
 GENERIC_EVENT_ATTR(branch-instructions,		BRU_FIN);
 GENERIC_EVENT_ATTR(branch-misses,		BRU_MPRED);
 
+POWER_EVENT_ATTR(CYC,				CYC);
+POWER_EVENT_ATTR(GCT_NOSLOT_CYC,		GCT_NOSLOT_CYC);
+POWER_EVENT_ATTR(CMPLU_STALL,			CMPLU_STALL);
+POWER_EVENT_ATTR(INST_CMPL,			INST_CMPL);
+POWER_EVENT_ATTR(LD_REF_L1,			LD_REF_L1);
+POWER_EVENT_ATTR(LD_MISS_L1,			LD_MISS_L1);
+POWER_EVENT_ATTR(BRU_FIN,			BRU_FIN)
+POWER_EVENT_ATTR(BRU_MPRED,			BRU_MPRED);
+
 static struct attribute *power7_events_attr[] = {
 	GENERIC_EVENT_PTR(CYC),
 	GENERIC_EVENT_PTR(GCT_NOSLOT_CYC),
@@ -393,6 +402,15 @@ static struct attribute *power7_events_attr[] = {
 	GENERIC_EVENT_PTR(LD_MISS_L1),
 	GENERIC_EVENT_PTR(BRU_FIN),
 	GENERIC_EVENT_PTR(BRU_MPRED),
+
+	POWER_EVENT_PTR(CYC),
+	POWER_EVENT_PTR(GCT_NOSLOT_CYC),
+	POWER_EVENT_PTR(CMPLU_STALL),
+	POWER_EVENT_PTR(INST_CMPL),
+	POWER_EVENT_PTR(LD_REF_L1),
+	POWER_EVENT_PTR(LD_MISS_L1),
+	POWER_EVENT_PTR(BRU_FIN),
+	POWER_EVENT_PTR(BRU_MPRED),
 	NULL
 };
 
-- 
1.8.1.1.361.gec3ae6e

[PATCH 25/25] perf: Document the ABI of perf sysfs entries

[Arnaldo Carvalho de Melo]

From: Sukadev Bhattiprolu <sukadev@linux.vnet.ibm.com>

This patchset addes two new sets of files to sysfs for POWER architecture.

	- perf event config format in /sys/devices/cpu/format/event
	- generic and POWER-specific perf events in /sys/devices/cpu/events/

The format of the first file is already documented in:

	sysfs-bus-event_source-devices-format

Document the format of the second set of files '/sys/devices/cpu/events/*'
which would also become part of the ABI.

Changelog[v4]:
	[Jiri Olsa]: Mention that multiple event= like terms can be specified
	in the 'events' file.
	[Jiri Olsa]: Remove the documentation for the 'config format' file
	as it is already documented in 'Documentation/ABI/testing/'.
	[Jiri Olsa]: Move ABI documentation from 'stable/' to 'testing/'

Changelog[v3]:
	[Greg KH] Include ABI documentation.

Signed-off-by: Sukadev Bhattiprolu <sukadev@linux.vnet.ibm.com>
Acked-by: Jiri Olsa <jolsa@redhat.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Anton Blanchard <anton@au1.ibm.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Robert Richter <robert.richter@amd.com>
Cc: Stephane Eranian <eranian@google.com>
Cc: linuxppc-dev@ozlabs.org
Link: http://lkml.kernel.org/r/20130123062645.GG13720@us.ibm.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 Documentation/ABI/stable/sysfs-devices-cpu-events  |  0
 .../testing/sysfs-bus-event_source-devices-events  | 62 ++++++++++++++++++++++
 2 files changed, 62 insertions(+)
 delete mode 100644 Documentation/ABI/stable/sysfs-devices-cpu-events
 create mode 100644 Documentation/ABI/testing/sysfs-bus-event_source-devices-events

diff --git a/Documentation/ABI/stable/sysfs-devices-cpu-events b/Documentation/ABI/stable/sysfs-devices-cpu-events
deleted file mode 100644
index e69de29..0000000
diff --git a/Documentation/ABI/testing/sysfs-bus-event_source-devices-events b/Documentation/ABI/testing/sysfs-bus-event_source-devices-events
new file mode 100644
index 0000000..0adeb52
--- /dev/null
+++ b/Documentation/ABI/testing/sysfs-bus-event_source-devices-events
@@ -0,0 +1,62 @@
+What:		/sys/devices/cpu/events/
+		/sys/devices/cpu/events/branch-misses
+		/sys/devices/cpu/events/cache-references
+		/sys/devices/cpu/events/cache-misses
+		/sys/devices/cpu/events/stalled-cycles-frontend
+		/sys/devices/cpu/events/branch-instructions
+		/sys/devices/cpu/events/stalled-cycles-backend
+		/sys/devices/cpu/events/instructions
+		/sys/devices/cpu/events/cpu-cycles
+
+Date:		2013/01/08
+
+Contact:	Linux kernel mailing list <linux-kernel@vger.kernel.org>
+
+Description:	Generic performance monitoring events
+
+		A collection of performance monitoring events that may be
+		supported by many/most CPUs. These events can be monitored
+		using the 'perf(1)' tool.
+
+		The contents of each file would look like:
+
+			event=0xNNNN
+
+		where 'N' is a hex digit and the number '0xNNNN' shows the
+		"raw code" for the perf event identified by the file's
+		"basename".
+
+
+What: 		/sys/devices/cpu/events/PM_LD_MISS_L1
+		/sys/devices/cpu/events/PM_LD_REF_L1
+		/sys/devices/cpu/events/PM_CYC
+		/sys/devices/cpu/events/PM_BRU_FIN
+		/sys/devices/cpu/events/PM_GCT_NOSLOT_CYC
+		/sys/devices/cpu/events/PM_BRU_MPRED
+		/sys/devices/cpu/events/PM_INST_CMPL
+		/sys/devices/cpu/events/PM_CMPLU_STALL
+
+Date:		2013/01/08
+
+Contact:	Linux kernel mailing list <linux-kernel@vger.kernel.org>
+		Linux Powerpc mailing list <linuxppc-dev@ozlabs.org>
+
+Description:	POWER-systems specific performance monitoring events
+
+		A collection of performance monitoring events that may be
+		supported by the POWER CPU. These events can be monitored
+		using the 'perf(1)' tool.
+
+		These events may not be supported by other CPUs.
+
+		The contents of each file would look like:
+
+			event=0xNNNN
+
+		where 'N' is a hex digit and the number '0xNNNN' shows the
+		"raw code" for the perf event identified by the file's
+		"basename".
+
+		Further, multiple terms like 'event=0xNNNN' can be specified
+		and separated with comma. All available terms are defined in
+		the /sys/bus/event_source/devices/<dev>/format file.
-- 
1.8.1.1.361.gec3ae6e

Re: [GIT PULL 00/25] perf/core improvements and fixes

[Ingo Molnar]

* Arnaldo Carvalho de Melo <acme@infradead.org> wrote:

> Hi Ingo,
> 
> 	Please consider pulling,
> 
> - Arnaldo
> 
> The following changes since commit 152fefa921535665f95840c08062844ab2f5593e:
> 
>   Merge tag 'perf-core-for-mingo' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/core (2013-01-31 10:20:14 +0100)
> 
> are available in the git repository at:
> 
> 
>   git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux tags/perf-core-for-mingo
> 
> for you to fetch changes up to 2ac3634a7e1c8eedc961030c87c5c36ebd5bbf8e:
> 
>   perf: Document the ABI of perf sysfs entries (2013-01-31 13:07:51 -0300)
> 
> ----------------------------------------------------------------
> perf/core improvements and fixes:
> 
> . Make some POWER7 events available in sysfs, equivalent to
>   what was done on x86, from Sukadev Bhattiprolu.
> 
> . Add event group view, from Namyung Kim:
> 
>   To use it, 'perf record' should group events when recording. And then perf
>   report parses the saved group relation from file header and prints them
>   together if --group option is provided.  You can use 'perf evlist' command to
>   see event group information:
> 
>     $ perf record -e '{ref-cycles,cycles}' noploop 1
>     [ perf record: Woken up 2 times to write data ]
>     [ perf record: Captured and wrote 0.385 MB perf.data (~16807 samples) ]
> 
>     $ perf evlist --group
>     {ref-cycles,cycles}
> 
>   With this example, default perf report will show you each event
>   separately like this:
> 
>     $ perf report
>     ...
>     # group: {ref-cycles,cycles}
>     # ========
>     # Samples: 3K of event 'ref-cycles'
>     # Event count (approx.): 3153797218
>     #
>     # Overhead  Command      Shared Object                      Symbol
>     # ........  .......  .................  ..........................
>         99.84%  noploop  noploop            [.] main
>          0.07%  noploop  ld-2.15.so         [.] strcmp
>          0.03%  noploop  [kernel.kallsyms]  [k] timerqueue_del
>          0.03%  noploop  [kernel.kallsyms]  [k] sched_clock_cpu
>          0.02%  noploop  [kernel.kallsyms]  [k] account_user_time
>          0.01%  noploop  [kernel.kallsyms]  [k] __alloc_pages_nodemask
>          0.00%  noploop  [kernel.kallsyms]  [k] native_write_msr_safe
> 
>     # Samples: 3K of event 'cycles'
>     # Event count (approx.): 3722310525
>     #
>     # Overhead  Command      Shared Object                     Symbol
>     # ........  .......  .................  .........................
>         99.76%  noploop  noploop            [.] main
>          0.11%  noploop  [kernel.kallsyms]  [k] _raw_spin_lock
>          0.06%  noploop  [kernel.kallsyms]  [k] find_get_page
>          0.03%  noploop  [kernel.kallsyms]  [k] sched_clock_cpu
>          0.02%  noploop  [kernel.kallsyms]  [k] rcu_check_callbacks
>          0.02%  noploop  [kernel.kallsyms]  [k] __current_kernel_time
>          0.00%  noploop  [kernel.kallsyms]  [k] native_write_msr_safe
> 
>   In this case the event group information will be shown in the end of
>   header area.  So you can use --group option to enable event group view.
> 
>     $ perf report --group
>     ...
>     # group: {ref-cycles,cycles}
>     # ========
>     # Samples: 7K of event 'anon group { ref-cycles, cycles }'
>     # Event count (approx.): 6876107743
>     #
>     #         Overhead  Command      Shared Object                      Symbol
>     # ................  .......  .................  ..........................
>         99.84%  99.76%  noploop  noploop            [.] main
>          0.07%   0.00%  noploop  ld-2.15.so         [.] strcmp
>          0.03%   0.00%  noploop  [kernel.kallsyms]  [k] timerqueue_del
>          0.03%   0.03%  noploop  [kernel.kallsyms]  [k] sched_clock_cpu
>          0.02%   0.00%  noploop  [kernel.kallsyms]  [k] account_user_time
>          0.01%   0.00%  noploop  [kernel.kallsyms]  [k] __alloc_pages_nodemask
>          0.00%   0.00%  noploop  [kernel.kallsyms]  [k] native_write_msr_safe
>          0.00%   0.11%  noploop  [kernel.kallsyms]  [k] _raw_spin_lock
>          0.00%   0.06%  noploop  [kernel.kallsyms]  [k] find_get_page
>          0.00%   0.02%  noploop  [kernel.kallsyms]  [k] rcu_check_callbacks
>          0.00%   0.02%  noploop  [kernel.kallsyms]  [k] __current_kernel_time
> 
>   As you can see the Overhead column now contains both of ref-cycles and
>   cycles and header line shows group information also - 'anon group {
>   ref-cycles, cycles }'.  The output is sorted by period of group leader
>   first.
> 
>   If perf.data file doesn't contain group information, this --group
>   option does nothing.  So if you want enable event group view by
>   default you can set it in ~/.perfconfig file:
> 
>     $ cat ~/.perfconfig
>     [report]
>     group = true
> 
>   It can be overridden with command line if you want:
> 
>     $ perf report --no-group
> 
> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
> 
> ----------------------------------------------------------------
> Arnaldo Carvalho de Melo (2):
>       perf top: Stop using exit()
>       perf top: Delete maps on exit
> 
> Namhyung Kim (18):
>       perf tools: Keep group information
>       perf tests: Add group test conditions
>       perf header: Add HEADER_GROUP_DESC feature
>       perf report: Make another loop for linking group hists
>       perf hists: Resort hist entries using group members for output
>       perf ui/hist: Consolidate hpp helpers
>       perf hists browser: Convert hpp helpers to a function
>       perf gtk/browser: Convert hpp helpers to a function
>       perf ui/hist: Add support for event group view
>       perf hists browser: Move coloring logic to hpp functions
>       perf hists browser: Add suppport for event group view
>       perf gtk/browser: Add support for event group view
>       perf gtk/browser: Trim column header string when event group enabled
>       perf report: Bypass non-leader events when event group is enabled
>       perf report: Show group description when event group is enabled
>       perf report: Add --group option
>       perf report: Add report.group config option
>       perf evlist: Add --group option
> 
> Sukadev Bhattiprolu (5):
>       perf/Power7: Use macros to identify perf events
>       perf: Make EVENT_ATTR global
>       perf/POWER7: Make generic event translations available in sysfs
>       perf/POWER7: Make some POWER7 events available in sysfs
>       perf: Document the ABI of perf sysfs entries
> 
>  .../testing/sysfs-bus-event_source-devices-events  |  62 +++++
>  arch/powerpc/include/asm/perf_event_server.h       |  26 ++
>  arch/powerpc/perf/core-book3s.c                    |  12 +
>  arch/powerpc/perf/power7-pmu.c                     |  80 +++++-
>  arch/x86/kernel/cpu/perf_event.c                   |  13 +-
>  include/linux/perf_event.h                         |  11 +
>  tools/perf/Documentation/perf-evlist.txt           |   4 +
>  tools/perf/Documentation/perf-report.txt           |   3 +
>  tools/perf/builtin-evlist.c                        |   7 +
>  tools/perf/builtin-record.c                        |   3 +
>  tools/perf/builtin-report.c                        |  47 +++-
>  tools/perf/builtin-top.c                           |  62 +++--
>  tools/perf/tests/parse-events.c                    |  28 ++
>  tools/perf/ui/browsers/hists.c                     | 217 ++++++++++++---
>  tools/perf/ui/gtk/hists.c                          | 130 +++++++--
>  tools/perf/ui/hist.c                               | 306 ++++++++++-----------
>  tools/perf/ui/stdio/hist.c                         |   2 +
>  tools/perf/util/evlist.c                           |   7 +-
>  tools/perf/util/evlist.h                           |   1 +
>  tools/perf/util/evsel.c                            |  49 +++-
>  tools/perf/util/evsel.h                            |  16 ++
>  tools/perf/util/header.c                           | 164 +++++++++++
>  tools/perf/util/header.h                           |   2 +
>  tools/perf/util/hist.c                             |  59 +++-
>  tools/perf/util/parse-events.c                     |   1 +
>  tools/perf/util/parse-events.h                     |   1 +
>  tools/perf/util/parse-events.y                     |  10 +
>  tools/perf/util/symbol.h                           |   3 +-
>  28 files changed, 1059 insertions(+), 267 deletions(-)
>  create mode 100644 Documentation/ABI/testing/sysfs-bus-event_source-devices-events

Pulled, thanks a lot Arnaldo!

	Ingo

Re: [PATCH 22/25] perf: Make EVENT_ATTR global

[Ingo Molnar]

* Arnaldo Carvalho de Melo <acme@infradead.org> wrote:

> From: Sukadev Bhattiprolu <sukadev@linux.vnet.ibm.com>
> 
> Rename EVENT_ATTR() to PMU_EVENT_ATTR() and make it global so it is
> available to all architectures.
> 
> Further to allow architectures flexibility, have PMU_EVENT_ATTR() pass
> in the variable name as a parameter.
> 
> Changelog[v2]
> 	- [Jiri Olsa] No need to define PMU_EVENT_PTR()
> 
> Signed-off-by: Sukadev Bhattiprolu <sukadev@linux.vnet.ibm.com>
> Acked-by: Jiri Olsa <jolsa@redhat.com>
> Cc: Andi Kleen <ak@linux.intel.com>
> Cc: Anton Blanchard <anton@au1.ibm.com>
> Cc: Ingo Molnar <mingo@redhat.com>
> Cc: Jiri Olsa <jolsa@redhat.com>
> Cc: Paul Mackerras <paulus@samba.org>
> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
> Cc: Robert Richter <robert.richter@amd.com>
> Cc: Stephane Eranian <eranian@google.com>
> Cc: linuxppc-dev@ozlabs.org
> Link: http://lkml.kernel.org/r/20130123062422.GC13720@us.ibm.com
> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
> ---
>  arch/x86/kernel/cpu/perf_event.c | 13 +++----------
>  include/linux/perf_event.h       | 11 +++++++++++
>  2 files changed, 14 insertions(+), 10 deletions(-)

so this one started conflicting non-trivially with tip:perf/x86 
- the pending memory profiling kernel-side bits.

Can we merge the memory profiling tooling side bits together 
with the kernel side bits - or does it need more work?

For now I've excluded perf/x86 from tip:master until this is 
resolved.

Thanks,

	Ingo

[GIT PULL 00/25] perf/core improvements and fixes

[Arnaldo Carvalho de Melo]

Hi Ingo,

	Please consider pulling,

- Arnaldo

Test results at the end of this message, as usual.

The following changes since commit 007b811b4041989ec2dc91b9614aa2c41332723e:

  Merge tag 'perf-core-for-mingo-4.13-20170719' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/core (2017-06-20 10:49:08 +0200)

are available in the git repository at:

  git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux.git tags/perf-core-for-mingo-4.13-20170621

for you to fetch changes up to 701516ae3dec801084bc913d21e03fce15c61a0b:

  perf script: Fix message because field list option is -F not -f (2017-06-21 11:35:53 -0300)

----------------------------------------------------------------
perf/core improvements ad fixes:

New features:

- Add support to measure SMI cost in 'perf stat' (Kan Liang)

- Add support for unwinding callchains in powerpc with libdw (Paolo Bonzini)

Fixes:

- Fix message: cpu list option is -C not -c (Adrian Hunter)

- Fix 'perf script' message: field list option is -F not -f (Adrian Hunter)

- Intel PT fixes: (Adrian Hunter)

  o Fix missing stack clear
  o Ensure IP is zero when state is INTEL_PT_STATE_NO_IP
  o Fix last_ip usage
  o Ensure never to set 'last_ip' when packet 'count' is zero
  o Clear FUP flag on error
  o Fix transactions_sample_type

Infrastructure:

- Intel PT cleanups/refactorings (Adrian Hunter)

  o Use FUP always when scanning for an IP
  o Add missing __fallthrough
  o Remove redundant initial_skip checks
  o Allow decoding with branch tracing disabled
  o Add default config for pass-through branch enable
  o Add documentation for new config terms
  o Add decoder support for ptwrite and power event packets
  o Add reserved byte to CBR packet payload
  o Add decoder support for CBR events

- Move  find_process() to the only place that uses it, skimming some
  more fat from util.[ch] (Arnaldo Carvalho de Melo)

- Do parameter validation earlier on fetch_kernel_version() (Arnaldo Carvalho de Melo)

- Remove unused _ALL_SOURCE define (Arnaldo Carvalho de Melo)

- Add sysfs__write_int function (Kan Liang)

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

----------------------------------------------------------------
Adrian Hunter (19):
      perf intel-pt: Move decoder error setting into one condition
      perf intel-pt: Improve sample timestamp
      perf intel-pt: Fix missing stack clear
      perf intel-pt: Ensure IP is zero when state is INTEL_PT_STATE_NO_IP
      perf intel-pt: Fix last_ip usage
      perf intel-pt: Ensure never to set 'last_ip' when packet 'count' is zero
      perf intel-pt: Use FUP always when scanning for an IP
      perf intel-pt: Clear FUP flag on error
      perf intel-pt: Add missing __fallthrough
      perf intel-pt: Allow decoding with branch tracing disabled
      perf intel-pt: Add default config for pass-through branch enable
      perf intel-pt: Add documentation for new config terms
      perf intel-pt: Add decoder support for ptwrite and power event packets
      perf intel-pt: Add reserved byte to CBR packet payload
      perf intel-pt: Add decoder support for CBR events
      perf intel-pt: Remove redundant initial_skip checks
      perf intel-pt: Fix transactions_sample_type
      perf tools: Fix message because cpu list option is -C not -c
      perf script: Fix message because field list option is -F not -f

Arnaldo Carvalho de Melo (3):
      perf evsel: Adopt find_process()
      perf tools: Do parameter validation earlier on fetch_kernel_version()
      perf tools: Remove unused _ALL_SOURCE define

Kan Liang (2):
      tools lib api fs: Add sysfs__write_int function
      perf stat: Add support to measure SMI cost

Paolo Bonzini (1):
      perf unwind: Support for powerpc

 tools/lib/api/fs/fs.c                              |  30 +++
 tools/lib/api/fs/fs.h                              |   4 +
 tools/perf/Documentation/intel-pt.txt              |  36 +++
 tools/perf/Documentation/perf-stat.txt             |  14 +
 tools/perf/Makefile.config                         |   2 +-
 tools/perf/arch/powerpc/util/Build                 |   2 +
 tools/perf/arch/powerpc/util/unwind-libdw.c        |  73 ++++++
 tools/perf/arch/x86/util/intel-pt.c                |   5 +
 tools/perf/builtin-script.c                        |   2 +-
 tools/perf/builtin-stat.c                          |  49 ++++
 tools/perf/util/evsel.c                            |  39 +++
 .../perf/util/intel-pt-decoder/intel-pt-decoder.c  | 290 +++++++++++++++++++--
 .../perf/util/intel-pt-decoder/intel-pt-decoder.h  |  13 +
 .../util/intel-pt-decoder/intel-pt-pkt-decoder.c   | 110 +++++++-
 .../util/intel-pt-decoder/intel-pt-pkt-decoder.h   |   7 +
 tools/perf/util/intel-pt.c                         |  23 +-
 tools/perf/util/session.c                          |   2 +-
 tools/perf/util/stat-shadow.c                      |  33 +++
 tools/perf/util/stat.c                             |   2 +
 tools/perf/util/stat.h                             |   2 +
 tools/perf/util/util.c                             |  52 +---
 tools/perf/util/util.h                             |   3 -
 22 files changed, 710 insertions(+), 83 deletions(-)
 create mode 100644 tools/perf/arch/powerpc/util/unwind-libdw.c

Test results:

The first ones are container (docker) based builds of tools/perf with and
without libelf support, objtool where it is supported and samples/bpf/, ditto.
Where clang is available, it is also used to build perf with/without libelf.

Several are cross builds, the ones with -x-ARCH, and the android one, and those
may not have all the features built, due to lack of multi-arch devel packages,
available and being used so far on just a few, like
debian:experimental-x-{arm64,mipsel}.

The 'perf test' one will perform a variety of tests exercising
tools/perf/util/, tools/lib/{bpf,traceevent,etc}, as well as run perf commands
with a variety of command line event specifications to then intercept the
sys_perf_event syscall to check that the perf_event_attr fields are set up as
expected, among a variety of other unit tests.

Then there is the 'make -C tools/perf build-test' ones, that build tools/perf/
with a variety of feature sets, exercising the build with an incomplete set of
features as well as with a complete one. It is planned to have it run on each
of the containers mentioned above, using some container orchestration
infrastructure. Get in contact if interested in helping having this in place.

  # dm
   1 alpine:3.4: Ok
   2 alpine:3.5: Ok
   3 alpine:3.6: Ok
   4 alpine:edge: Ok
   5 android-ndk:r12b-arm: Ok
   6 archlinux:latest: Ok
   7 centos:5: Ok
   8 centos:6: Ok
   9 centos:7: Ok
  10 debian:7: Ok
  11 debian:8: Ok
  12 debian:9: Ok
  13 debian:experimental: Ok
  14 debian:experimental-x-arm64: Ok
  15 debian:experimental-x-mips: Ok
  16 debian:experimental-x-mips64: Ok
  17 debian:experimental-x-mipsel: Ok
  18 fedora:20: Ok
  19 fedora:21: Ok
  20 fedora:22: Ok
  21 fedora:23: Ok
  22 fedora:24: Ok
  23 fedora:24-x-ARC-uClibc: Ok
  24 fedora:25: Ok
  25 fedora:rawhide: Ok
  26 mageia:5: Ok
  27 opensuse:13.2: Ok
  28 opensuse:42.1: Ok
  29 opensuse:tumbleweed: Ok
  30 ubuntu:12.04.5: Ok
  31 ubuntu:14.04.4: Ok
  32 ubuntu:14.04.4-x-linaro-arm64: Ok
  33 ubuntu:15.10: Ok
  34 ubuntu:16.04: Ok
  35 ubuntu:16.04-x-arm: Ok
  36 ubuntu:16.04-x-arm64: Ok
  37 ubuntu:16.04-x-powerpc: Ok
  38 ubuntu:16.04-x-powerpc64: Ok
  39 ubuntu:16.04-x-powerpc64el: Ok
  40 ubuntu:16.04-x-s390: Ok
  41 ubuntu:16.10: Ok
  42 ubuntu:17.04: Ok
  # 

  # uname -a
  Linux jouet 4.12.0-rc4+ #1 SMP Fri Jun 9 12:59:23 -03 2017 x86_64 x86_64 x86_64 GNU/Linux
  # perf test
   1: vmlinux symtab matches kallsyms            : Ok
   2: Detect openat syscall event                : Ok
   3: Detect openat syscall event on all cpus    : Ok
   4: Read samples using the mmap interface      : Ok
   5: Parse event definition strings             : Ok
   6: Simple expression parser                   : Ok
   7: PERF_RECORD_* events & perf_sample fields  : Ok
   8: Parse perf pmu format                      : Ok
   9: DSO data read                              : Ok
  10: DSO data cache                             : Ok
  11: DSO data reopen                            : Ok
  12: Roundtrip evsel->name                      : Ok
  13: Parse sched tracepoints fields             : Ok
  14: syscalls:sys_enter_openat event fields     : Ok
  15: Setup struct perf_event_attr               : Ok
  16: Match and link multiple hists              : Ok
  17: 'import perf' in python                    : Ok
  18: Breakpoint overflow signal handler         : Ok
  19: Breakpoint overflow sampling               : Ok
  20: Number of exit events of a simple workload : Ok
  21: Software clock events period values        : Ok
  22: Object code reading                        : Ok
  23: Sample parsing                             : Ok
  24: Use a dummy software event to keep tracking: Ok
  25: Parse with no sample_id_all bit set        : Ok
  26: Filter hist entries                        : Ok
  27: Lookup mmap thread                         : Ok
  28: Share thread mg                            : Ok
  29: Sort output of hist entries                : Ok
  30: Cumulate child hist entries                : Ok
  31: Track with sched_switch                    : Ok
  32: Filter fds with revents mask in a fdarray  : Ok
  33: Add fd to a fdarray, making it autogrow    : Ok
  34: kmod_path__parse                           : Ok
  35: Thread map                                 : Ok
  36: LLVM search and compile                    :
  36.1: Basic BPF llvm compile                    : Ok
  36.2: kbuild searching                          : Ok
  36.3: Compile source for BPF prologue generation: Ok
  36.4: Compile source for BPF relocation         : Ok
  37: Session topology                           : Ok
  38: BPF filter                                 :
  38.1: Basic BPF filtering                      : Ok
  38.2: BPF pinning                              : Ok
  38.3: BPF prologue generation                  : Ok
  38.4: BPF relocation checker                   : Ok
  39: Synthesize thread map                      : Ok
  40: Remove thread map                          : Ok
  41: Synthesize cpu map                         : Ok
  42: Synthesize stat config                     : Ok
  43: Synthesize stat                            : Ok
  44: Synthesize stat round                      : Ok
  45: Synthesize attr update                     : Ok
  46: Event times                                : Ok
  47: Read backward ring buffer                  : Ok
  48: Print cpu map                              : Ok
  49: Probe SDT events                           : Ok
  50: is_printable_array                         : Ok
  51: Print bitmap                               : Ok
  52: perf hooks                                 : Ok
  53: builtin clang support                      : Skip (not compiled in)
  54: unit_number__scnprintf                     : Ok
  55: x86 rdpmc                                  : Ok
  56: Convert perf time to TSC                   : Ok
  57: DWARF unwind                               : Ok
  58: x86 instruction decoder - new instructions : Ok
  59: Intel cqm nmi context read                 : Skip
  #

  $ make -C tools/perf build-test
  make: Entering directory '/home/acme/git/linux/tools/perf'
  - tarpkg: ./tests/perf-targz-src-pkg .
               make_no_slang_O: make NO_SLANG=1
              make_clean_all_O: make clean all
                make_no_gtk2_O: make NO_GTK2=1
             make_no_libperl_O: make NO_LIBPERL=1
            make_no_auxtrace_O: make NO_AUXTRACE=1
                    make_doc_O: make doc
           make_no_libbionic_O: make NO_LIBBIONIC=1
           make_no_backtrace_O: make NO_BACKTRACE=1
              make_no_libelf_O: make NO_LIBELF=1
            make_no_libaudit_O: make NO_LIBAUDIT=1
             make_no_libnuma_O: make NO_LIBNUMA=1
  make_no_libdw_dwarf_unwind_O: make NO_LIBDW_DWARF_UNWIND=1
       make_util_pmu_bison_o_O: make util/pmu-bison.o
            make_no_demangle_O: make NO_DEMANGLE=1
             make_util_map_o_O: make util/map.o
   make_install_prefix_slash_O: make install prefix=/tmp/krava/
         make_with_clangllvm_O: make LIBCLANGLLVM=1
           make_no_libunwind_O: make NO_LIBUNWIND=1
           make_no_libpython_O: make NO_LIBPYTHON=1
                 make_perf_o_O: make perf.o
                   make_tags_O: make tags
             make_no_scripts_O: make NO_LIBPYTHON=1 NO_LIBPERL=1
            make_install_bin_O: make install-bin
                  make_debug_O: make DEBUG=1
              make_no_libbpf_O: make NO_LIBBPF=1
        make_with_babeltrace_O: make LIBBABELTRACE=1
                   make_pure_O: make
                  make_no_ui_O: make NO_NEWT=1 NO_SLANG=1 NO_GTK2=1
         make_install_prefix_O: make install prefix=/tmp/krava
                make_install_O: make install
                   make_help_O: make help
                 make_static_O: make LDFLAGS=-static
                make_minimal_O: make NO_LIBPERL=1 NO_LIBPYTHON=1 NO_NEWT=1 NO_GTK2=1 NO_DEMANGLE=1 NO_LIBELF=1 NO_LIBUNWIND=1 NO_BACKTRACE=1 NO_LIBNUMA=1 NO_LIBAUDIT=1 NO_LIBBIONIC=1 NO_LIBDW_DWARF_UNWIND=1 NO_AUXTRACE=1 NO_LIBBPF=1 NO_LIBCRYPTO=1 NO_SDT=1 NO_JVMTI=1
                make_no_newt_O: make NO_NEWT=1
  OK
  make: Leaving directory '/home/acme/git/linux/tools/perf'
  $ 

Re: [GIT PULL 00/25] perf/core improvements and fixes

[Ingo Molnar]

* Arnaldo Carvalho de Melo <acme@kernel.org> wrote:

> Hi Ingo,
> 
> 	Please consider pulling,
> 
> - Arnaldo
> 
> Test results at the end of this message, as usual.
> 
> The following changes since commit 007b811b4041989ec2dc91b9614aa2c41332723e:
> 
>   Merge tag 'perf-core-for-mingo-4.13-20170719' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/core (2017-06-20 10:49:08 +0200)
> 
> are available in the git repository at:
> 
>   git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux.git tags/perf-core-for-mingo-4.13-20170621
> 
> for you to fetch changes up to 701516ae3dec801084bc913d21e03fce15c61a0b:
> 
>   perf script: Fix message because field list option is -F not -f (2017-06-21 11:35:53 -0300)
> 
> ----------------------------------------------------------------
> perf/core improvements ad fixes:
> 
> New features:
> 
> - Add support to measure SMI cost in 'perf stat' (Kan Liang)
> 
> - Add support for unwinding callchains in powerpc with libdw (Paolo Bonzini)
> 
> Fixes:
> 
> - Fix message: cpu list option is -C not -c (Adrian Hunter)
> 
> - Fix 'perf script' message: field list option is -F not -f (Adrian Hunter)
> 
> - Intel PT fixes: (Adrian Hunter)
> 
>   o Fix missing stack clear
>   o Ensure IP is zero when state is INTEL_PT_STATE_NO_IP
>   o Fix last_ip usage
>   o Ensure never to set 'last_ip' when packet 'count' is zero
>   o Clear FUP flag on error
>   o Fix transactions_sample_type
> 
> Infrastructure:
> 
> - Intel PT cleanups/refactorings (Adrian Hunter)
> 
>   o Use FUP always when scanning for an IP
>   o Add missing __fallthrough
>   o Remove redundant initial_skip checks
>   o Allow decoding with branch tracing disabled
>   o Add default config for pass-through branch enable
>   o Add documentation for new config terms
>   o Add decoder support for ptwrite and power event packets
>   o Add reserved byte to CBR packet payload
>   o Add decoder support for CBR events
> 
> - Move  find_process() to the only place that uses it, skimming some
>   more fat from util.[ch] (Arnaldo Carvalho de Melo)
> 
> - Do parameter validation earlier on fetch_kernel_version() (Arnaldo Carvalho de Melo)
> 
> - Remove unused _ALL_SOURCE define (Arnaldo Carvalho de Melo)
> 
> - Add sysfs__write_int function (Kan Liang)
> 
> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
> 
> ----------------------------------------------------------------
> Adrian Hunter (19):
>       perf intel-pt: Move decoder error setting into one condition
>       perf intel-pt: Improve sample timestamp
>       perf intel-pt: Fix missing stack clear
>       perf intel-pt: Ensure IP is zero when state is INTEL_PT_STATE_NO_IP
>       perf intel-pt: Fix last_ip usage
>       perf intel-pt: Ensure never to set 'last_ip' when packet 'count' is zero
>       perf intel-pt: Use FUP always when scanning for an IP
>       perf intel-pt: Clear FUP flag on error
>       perf intel-pt: Add missing __fallthrough
>       perf intel-pt: Allow decoding with branch tracing disabled
>       perf intel-pt: Add default config for pass-through branch enable
>       perf intel-pt: Add documentation for new config terms
>       perf intel-pt: Add decoder support for ptwrite and power event packets
>       perf intel-pt: Add reserved byte to CBR packet payload
>       perf intel-pt: Add decoder support for CBR events
>       perf intel-pt: Remove redundant initial_skip checks
>       perf intel-pt: Fix transactions_sample_type
>       perf tools: Fix message because cpu list option is -C not -c
>       perf script: Fix message because field list option is -F not -f
> 
> Arnaldo Carvalho de Melo (3):
>       perf evsel: Adopt find_process()
>       perf tools: Do parameter validation earlier on fetch_kernel_version()
>       perf tools: Remove unused _ALL_SOURCE define
> 
> Kan Liang (2):
>       tools lib api fs: Add sysfs__write_int function
>       perf stat: Add support to measure SMI cost
> 
> Paolo Bonzini (1):
>       perf unwind: Support for powerpc
> 
>  tools/lib/api/fs/fs.c                              |  30 +++
>  tools/lib/api/fs/fs.h                              |   4 +
>  tools/perf/Documentation/intel-pt.txt              |  36 +++
>  tools/perf/Documentation/perf-stat.txt             |  14 +
>  tools/perf/Makefile.config                         |   2 +-
>  tools/perf/arch/powerpc/util/Build                 |   2 +
>  tools/perf/arch/powerpc/util/unwind-libdw.c        |  73 ++++++
>  tools/perf/arch/x86/util/intel-pt.c                |   5 +
>  tools/perf/builtin-script.c                        |   2 +-
>  tools/perf/builtin-stat.c                          |  49 ++++
>  tools/perf/util/evsel.c                            |  39 +++
>  .../perf/util/intel-pt-decoder/intel-pt-decoder.c  | 290 +++++++++++++++++++--
>  .../perf/util/intel-pt-decoder/intel-pt-decoder.h  |  13 +
>  .../util/intel-pt-decoder/intel-pt-pkt-decoder.c   | 110 +++++++-
>  .../util/intel-pt-decoder/intel-pt-pkt-decoder.h   |   7 +
>  tools/perf/util/intel-pt.c                         |  23 +-
>  tools/perf/util/session.c                          |   2 +-
>  tools/perf/util/stat-shadow.c                      |  33 +++
>  tools/perf/util/stat.c                             |   2 +
>  tools/perf/util/stat.h                             |   2 +
>  tools/perf/util/util.c                             |  52 +---
>  tools/perf/util/util.h                             |   3 -
>  22 files changed, 710 insertions(+), 83 deletions(-)
>  create mode 100644 tools/perf/arch/powerpc/util/unwind-libdw.c

Pulled, thanks a lot Arnaldo!

	Ingo