* [PATCH 1/6] perf tools: Add missing event for perf sched record.
2014-05-12 9:27 [GIT PULL 0/6] perf/core improvements and fixes Jiri Olsa
@ 2014-05-12 9:27 ` Jiri Olsa
2014-05-12 9:27 ` [PATCH 2/6] perf tools: Adapt the TASK_STATE_TO_CHAR_STR to new value in kernel space Jiri Olsa
` (5 subsequent siblings)
6 siblings, 0 replies; 8+ messages in thread
From: Jiri Olsa @ 2014-05-12 9:27 UTC (permalink / raw)
To: Ingo Molnar; +Cc: linux-kernel, Dongsheng, Jiri Olsa
From: Dongsheng <yangds.fnst@cn.fujitsu.com>
We should record and process sched:sched_wakeup_new event in
perf sched tool, but currently, there is the process function
for it, without recording it in record subcommand.
This patch add -e sched:sched_wakeup_new to perf sched record.
Signed-off-by: Dongsheng <yangds.fnst@cn.fujitsu.com>
Link: http://lkml.kernel.org/r/710c6edd2162b2cea1711443f54de47c0210d9fd.1399273302.git.yangds.fnst@cn.fujitsu.com
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
---
tools/perf/builtin-sched.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/tools/perf/builtin-sched.c b/tools/perf/builtin-sched.c
index d3fb0ed..7eae501 100644
--- a/tools/perf/builtin-sched.c
+++ b/tools/perf/builtin-sched.c
@@ -1635,6 +1635,7 @@ static int __cmd_record(int argc, const char **argv)
"-e", "sched:sched_stat_runtime",
"-e", "sched:sched_process_fork",
"-e", "sched:sched_wakeup",
+ "-e", "sched:sched_wakeup_new",
"-e", "sched:sched_migrate_task",
};
--
1.8.3.1
^ permalink raw reply related [flat|nested] 8+ messages in thread* [PATCH 2/6] perf tools: Adapt the TASK_STATE_TO_CHAR_STR to new value in kernel space.
2014-05-12 9:27 [GIT PULL 0/6] perf/core improvements and fixes Jiri Olsa
2014-05-12 9:27 ` [PATCH 1/6] perf tools: Add missing event for perf sched record Jiri Olsa
@ 2014-05-12 9:27 ` Jiri Olsa
2014-05-12 9:27 ` [PATCH 3/6] perf tools: Clarify the output of perf sched map Jiri Olsa
` (4 subsequent siblings)
6 siblings, 0 replies; 8+ messages in thread
From: Jiri Olsa @ 2014-05-12 9:27 UTC (permalink / raw)
To: Ingo Molnar; +Cc: linux-kernel, Dongsheng, Jiri Olsa
From: Dongsheng <yangds.fnst@cn.fujitsu.com>
Currently, TASK_STATE_TO_CHAR_STR in kernel space is already expanded to RSDTtZXxKWP,
but it is still RSDTtZX in perf sched tool.
This patch update TASK_STATE_TO_CHAR_STR to the new value in kernel space.
Signed-off-by: Dongsheng <yangds.fnst@cn.fujitsu.com>
Link: http://lkml.kernel.org/r/6d2f55dc1e02c1e29a5d70bfeb9d6e8863caf2aa.1399273302.git.yangds.fnst@cn.fujitsu.com
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
---
tools/perf/builtin-sched.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/tools/perf/builtin-sched.c b/tools/perf/builtin-sched.c
index 7eae501..4f0dd21 100644
--- a/tools/perf/builtin-sched.c
+++ b/tools/perf/builtin-sched.c
@@ -66,7 +66,7 @@ struct sched_atom {
struct task_desc *wakee;
};
-#define TASK_STATE_TO_CHAR_STR "RSDTtZX"
+#define TASK_STATE_TO_CHAR_STR "RSDTtZXxKWP"
enum thread_state {
THREAD_SLEEPING = 0,
--
1.8.3.1
^ permalink raw reply related [flat|nested] 8+ messages in thread* [PATCH 3/6] perf tools: Clarify the output of perf sched map.
2014-05-12 9:27 [GIT PULL 0/6] perf/core improvements and fixes Jiri Olsa
2014-05-12 9:27 ` [PATCH 1/6] perf tools: Add missing event for perf sched record Jiri Olsa
2014-05-12 9:27 ` [PATCH 2/6] perf tools: Adapt the TASK_STATE_TO_CHAR_STR to new value in kernel space Jiri Olsa
@ 2014-05-12 9:27 ` Jiri Olsa
2014-05-12 9:27 ` [PATCH 4/6] perf record: Propagate exit status of a command line workload Jiri Olsa
` (3 subsequent siblings)
6 siblings, 0 replies; 8+ messages in thread
From: Jiri Olsa @ 2014-05-12 9:27 UTC (permalink / raw)
To: Ingo Molnar; +Cc: linux-kernel, Dongsheng, Jiri Olsa
From: Dongsheng <yangds.fnst@cn.fujitsu.com>
In output of perf sched map, any shortname of thread will be explained
at the first time when it appear.
Example:
*A0 228836.978985 secs A0 => perf:23032
*. A0 228836.979016 secs B0 => swapper:0
. *C0 228836.979099 secs C0 => migration/3:22
*A0 . C0 228836.979115 secs
A0 . *. 228836.979115 secs
But B0, which is explained as swapper:0 did not appear in the
left part of output. Instead, we use '.' as the shortname of
swapper:0. So the comment of "B0 => swapper:0" is not easy to
understand.
This patch clarify the output of perf sched map with not allocating
one letter-number shortname for swapper:0 and print ". => swapper:0"
as the explanation for swapper:0.
Example:
*A0 228836.978985 secs A0 => perf:23032
* . A0 228836.979016 secs . => swapper:0
. *B0 228836.979099 secs B0 => migration/3:22
*A0 . B0 228836.979115 secs
A0 . * . 228836.979115 secs
A0 *C0 . 228836.979225 secs C0 => ksoftirqd/2:18
A0 *D0 . 228836.979236 secs D0 => rcu_sched:7
Signed-off-by: Dongsheng <yangds.fnst@cn.fujitsu.com>
Acked-by: Ingo Molnar <mingo@kernel.org>
Link: http://lkml.kernel.org/r/1399354741-19522-1-git-send-email-yangds.fnst@cn.fujitsu.com
[ small style fixes to make checkpatch happy ]
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
---
tools/perf/builtin-sched.c | 35 ++++++++++++++++++++---------------
1 file changed, 20 insertions(+), 15 deletions(-)
diff --git a/tools/perf/builtin-sched.c b/tools/perf/builtin-sched.c
index 4f0dd21..2579215 100644
--- a/tools/perf/builtin-sched.c
+++ b/tools/perf/builtin-sched.c
@@ -1300,17 +1300,25 @@ static int map_switch_event(struct perf_sched *sched, struct perf_evsel *evsel,
new_shortname = 0;
if (!sched_in->shortname[0]) {
- sched_in->shortname[0] = sched->next_shortname1;
- sched_in->shortname[1] = sched->next_shortname2;
-
- if (sched->next_shortname1 < 'Z') {
- sched->next_shortname1++;
+ if (!strcmp(thread__comm_str(sched_in), "swapper")) {
+ /*
+ * Don't allocate a letter-number for swapper:0
+ * as a shortname. Instead, we use '.' for it.
+ */
+ sched_in->shortname[0] = '.';
+ sched_in->shortname[1] = ' ';
} else {
- sched->next_shortname1='A';
- if (sched->next_shortname2 < '9') {
- sched->next_shortname2++;
+ sched_in->shortname[0] = sched->next_shortname1;
+ sched_in->shortname[1] = sched->next_shortname2;
+
+ if (sched->next_shortname1 < 'Z') {
+ sched->next_shortname1++;
} else {
- sched->next_shortname2='0';
+ sched->next_shortname1 = 'A';
+ if (sched->next_shortname2 < '9')
+ sched->next_shortname2++;
+ else
+ sched->next_shortname2 = '0';
}
}
new_shortname = 1;
@@ -1322,12 +1330,9 @@ static int map_switch_event(struct perf_sched *sched, struct perf_evsel *evsel,
else
printf("*");
- if (sched->curr_thread[cpu]) {
- if (sched->curr_thread[cpu]->tid)
- printf("%2s ", sched->curr_thread[cpu]->shortname);
- else
- printf(". ");
- } else
+ if (sched->curr_thread[cpu])
+ printf("%2s ", sched->curr_thread[cpu]->shortname);
+ else
printf(" ");
}
--
1.8.3.1
^ permalink raw reply related [flat|nested] 8+ messages in thread* [PATCH 4/6] perf record: Propagate exit status of a command line workload
2014-05-12 9:27 [GIT PULL 0/6] perf/core improvements and fixes Jiri Olsa
` (2 preceding siblings ...)
2014-05-12 9:27 ` [PATCH 3/6] perf tools: Clarify the output of perf sched map Jiri Olsa
@ 2014-05-12 9:27 ` Jiri Olsa
2014-05-12 9:27 ` [PATCH 5/6] perf tools: Get rid of on_exit() feature test Jiri Olsa
` (2 subsequent siblings)
6 siblings, 0 replies; 8+ messages in thread
From: Jiri Olsa @ 2014-05-12 9:27 UTC (permalink / raw)
To: Ingo Molnar; +Cc: linux-kernel, Namhyung Kim, Jiri Olsa
From: Namhyung Kim <namhyung@kernel.org>
Currently perf record doesn't propagate the exit status of a workload
given by the command line. But sometimes it'd useful if it's
propagated so that a monitoring script can handle errors
appropriately.
To do that, it moves most of logic out of the exit handlers and run
them directly in the __cmd_record(). The only thing needs to be done
in the handler is propagating terminating signal so that the shell can
terminate its loop properly when Ctrl-C was pressed. Also it cleaned
up the resource management code in record__exit().
With this change, perf record returns the child exit status in case of
normal termination and send signal to itself when terminated by signal.
Example run of Stephane's case:
$ perf record true && echo yes || echo no
[ perf record: Woken up 1 times to write data ]
[ perf record: Captured and wrote 0.013 MB perf.data (~589 samples) ]
yes
$ perf record false && echo yes || echo no
[ perf record: Woken up 1 times to write data ]
[ perf record: Captured and wrote 0.013 MB perf.data (~589 samples) ]
no
Jiri's case (error in parent):
$ perf record -m 10G true && echo yes || echo no
rounding mmap pages size to 17179869184 bytes (4194304 pages)
failed to mmap with 12 (Cannot allocate memory)
no
$ ulimit -n 6
$ perf record sleep 1 && echo yes || echo no
failed to create 'go' pipe: Too many open files
Couldn't run the workload!
no
And Peter's case (interrupted by signal):
$ while :; do perf record sleep 1; done
^C[ perf record: Woken up 1 times to write data ]
[ perf record: Captured and wrote 0.014 MB perf.data (~593 samples) ]
Reported-by: Stephane Eranian <eranian@google.com>
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Acked-by: Stephane Eranian <eranian@google.com>
Acked-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Acked-by: Ingo Molnar <mingo@kernel.org>
Link: http://lkml.kernel.org/r/1399855645-25815-1-git-send-email-namhyung@kernel.org
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
---
tools/perf/builtin-record.c | 127 +++++++++++++++++++++-----------------------
1 file changed, 60 insertions(+), 67 deletions(-)
diff --git a/tools/perf/builtin-record.c b/tools/perf/builtin-record.c
index 8ce62ef..2e0d484 100644
--- a/tools/perf/builtin-record.c
+++ b/tools/perf/builtin-record.c
@@ -147,29 +147,19 @@ static void sig_handler(int sig)
{
if (sig == SIGCHLD)
child_finished = 1;
+ else
+ signr = sig;
done = 1;
- signr = sig;
}
-static void record__sig_exit(int exit_status __maybe_unused, void *arg)
+static void record__sig_exit(void)
{
- struct record *rec = arg;
- int status;
-
- if (rec->evlist->workload.pid > 0) {
- if (!child_finished)
- kill(rec->evlist->workload.pid, SIGTERM);
-
- wait(&status);
- if (WIFSIGNALED(status))
- psignal(WTERMSIG(status), rec->progname);
- }
-
- if (signr == -1 || signr == SIGUSR1)
+ if (signr == -1)
return;
signal(signr, SIG_DFL);
+ raise(signr);
}
static int record__open(struct record *rec)
@@ -243,27 +233,6 @@ static int process_buildids(struct record *rec)
size, &build_id__mark_dso_hit_ops);
}
-static void record__exit(int status, void *arg)
-{
- struct record *rec = arg;
- struct perf_data_file *file = &rec->file;
-
- if (status != 0)
- return;
-
- if (!file->is_pipe) {
- rec->session->header.data_size += rec->bytes_written;
-
- if (!rec->no_buildid)
- process_buildids(rec);
- perf_session__write_header(rec->session, rec->evlist,
- file->fd, true);
- perf_session__delete(rec->session);
- perf_evlist__delete(rec->evlist);
- symbol__exit();
- }
-}
-
static void perf_event__synthesize_guest_os(struct machine *machine, void *data)
{
int err;
@@ -344,18 +313,19 @@ static volatile int workload_exec_errno;
* if the fork fails, since we asked by setting its
* want_signal to true.
*/
-static void workload_exec_failed_signal(int signo, siginfo_t *info,
+static void workload_exec_failed_signal(int signo __maybe_unused,
+ siginfo_t *info,
void *ucontext __maybe_unused)
{
workload_exec_errno = info->si_value.sival_int;
done = 1;
- signr = signo;
child_finished = 1;
}
static int __cmd_record(struct record *rec, int argc, const char **argv)
{
int err;
+ int status = 0;
unsigned long waking = 0;
const bool forks = argc > 0;
struct machine *machine;
@@ -367,7 +337,7 @@ static int __cmd_record(struct record *rec, int argc, const char **argv)
rec->progname = argv[0];
- on_exit(record__sig_exit, rec);
+ atexit(record__sig_exit);
signal(SIGCHLD, sig_handler);
signal(SIGINT, sig_handler);
signal(SIGTERM, sig_handler);
@@ -388,32 +358,28 @@ static int __cmd_record(struct record *rec, int argc, const char **argv)
workload_exec_failed_signal);
if (err < 0) {
pr_err("Couldn't run the workload!\n");
+ status = err;
goto out_delete_session;
}
}
if (record__open(rec) != 0) {
err = -1;
- goto out_delete_session;
+ goto out_child;
}
if (!rec->evlist->nr_groups)
perf_header__clear_feat(&session->header, HEADER_GROUP_DESC);
- /*
- * perf_session__delete(session) will be called at record__exit()
- */
- on_exit(record__exit, rec);
-
if (file->is_pipe) {
err = perf_header__write_pipe(file->fd);
if (err < 0)
- goto out_delete_session;
+ goto out_child;
} else {
err = perf_session__write_header(session, rec->evlist,
file->fd, false);
if (err < 0)
- goto out_delete_session;
+ goto out_child;
}
if (!rec->no_buildid
@@ -421,7 +387,7 @@ static int __cmd_record(struct record *rec, int argc, const char **argv)
pr_err("Couldn't generate buildids. "
"Use --no-buildid to profile anyway.\n");
err = -1;
- goto out_delete_session;
+ goto out_child;
}
machine = &session->machines.host;
@@ -431,7 +397,7 @@ static int __cmd_record(struct record *rec, int argc, const char **argv)
process_synthesized_event);
if (err < 0) {
pr_err("Couldn't synthesize attrs.\n");
- goto out_delete_session;
+ goto out_child;
}
if (have_tracepoints(&rec->evlist->entries)) {
@@ -447,7 +413,7 @@ static int __cmd_record(struct record *rec, int argc, const char **argv)
process_synthesized_event);
if (err <= 0) {
pr_err("Couldn't record tracing data.\n");
- goto out_delete_session;
+ goto out_child;
}
rec->bytes_written += err;
}
@@ -475,7 +441,7 @@ static int __cmd_record(struct record *rec, int argc, const char **argv)
err = __machine__synthesize_threads(machine, tool, &opts->target, rec->evlist->threads,
process_synthesized_event, opts->sample_address);
if (err != 0)
- goto out_delete_session;
+ goto out_child;
if (rec->realtime_prio) {
struct sched_param param;
@@ -484,7 +450,7 @@ static int __cmd_record(struct record *rec, int argc, const char **argv)
if (sched_setscheduler(0, SCHED_FIFO, ¶m)) {
pr_err("Could not set realtime priority.\n");
err = -1;
- goto out_delete_session;
+ goto out_child;
}
}
@@ -512,13 +478,15 @@ static int __cmd_record(struct record *rec, int argc, const char **argv)
if (record__mmap_read_all(rec) < 0) {
err = -1;
- goto out_delete_session;
+ goto out_child;
}
if (hits == rec->samples) {
if (done)
break;
err = poll(rec->evlist->pollfd, rec->evlist->nr_fds, -1);
+ if (err < 0 && errno == EINTR)
+ err = 0;
waking++;
}
@@ -538,28 +506,52 @@ static int __cmd_record(struct record *rec, int argc, const char **argv)
const char *emsg = strerror_r(workload_exec_errno, msg, sizeof(msg));
pr_err("Workload failed: %s\n", emsg);
err = -1;
- goto out_delete_session;
+ goto out_child;
}
- if (quiet || signr == SIGUSR1)
- return 0;
+ if (!quiet) {
+ fprintf(stderr, "[ perf record: Woken up %ld times to write data ]\n", waking);
- fprintf(stderr, "[ perf record: Woken up %ld times to write data ]\n", waking);
+ /*
+ * Approximate RIP event size: 24 bytes.
+ */
+ fprintf(stderr,
+ "[ perf record: Captured and wrote %.3f MB %s (~%" PRIu64 " samples) ]\n",
+ (double)rec->bytes_written / 1024.0 / 1024.0,
+ file->path,
+ rec->bytes_written / 24);
+ }
- /*
- * Approximate RIP event size: 24 bytes.
- */
- fprintf(stderr,
- "[ perf record: Captured and wrote %.3f MB %s (~%" PRIu64 " samples) ]\n",
- (double)rec->bytes_written / 1024.0 / 1024.0,
- file->path,
- rec->bytes_written / 24);
+out_child:
+ if (forks) {
+ int exit_status;
- return 0;
+ if (!child_finished)
+ kill(rec->evlist->workload.pid, SIGTERM);
+
+ wait(&exit_status);
+
+ if (err < 0)
+ status = err;
+ else if (WIFEXITED(exit_status))
+ status = WEXITSTATUS(exit_status);
+ else if (WIFSIGNALED(exit_status))
+ signr = WTERMSIG(exit_status);
+ } else
+ status = err;
+
+ if (!err && !file->is_pipe) {
+ rec->session->header.data_size += rec->bytes_written;
+
+ if (!rec->no_buildid)
+ process_buildids(rec);
+ perf_session__write_header(rec->session, rec->evlist,
+ file->fd, true);
+ }
out_delete_session:
perf_session__delete(session);
- return err;
+ return status;
}
#define BRANCH_OPT(n, m) \
@@ -988,6 +980,7 @@ int cmd_record(int argc, const char **argv, const char *prefix __maybe_unused)
err = __cmd_record(&record, argc, argv);
out_symbol_exit:
+ perf_evlist__delete(rec->evlist);
symbol__exit();
return err;
}
--
1.8.3.1
^ permalink raw reply related [flat|nested] 8+ messages in thread* [PATCH 5/6] perf tools: Get rid of on_exit() feature test
2014-05-12 9:27 [GIT PULL 0/6] perf/core improvements and fixes Jiri Olsa
` (3 preceding siblings ...)
2014-05-12 9:27 ` [PATCH 4/6] perf record: Propagate exit status of a command line workload Jiri Olsa
@ 2014-05-12 9:27 ` Jiri Olsa
2014-05-12 9:27 ` [PATCH 6/6] perf tools: Use tid for finding thread Jiri Olsa
2014-05-12 15:59 ` [GIT PULL 0/6] perf/core improvements and fixes Ingo Molnar
6 siblings, 0 replies; 8+ messages in thread
From: Jiri Olsa @ 2014-05-12 9:27 UTC (permalink / raw)
To: Ingo Molnar
Cc: linux-kernel, Namhyung Kim, Bernhard Rosenkraenzer, Irina Tirdea,
Jiri Olsa
From: Namhyung Kim <namhyung@kernel.org>
The on_exit() function was only used in perf record but it's gone in
previous patch.
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Acked-by: Stephane Eranian <eranian@google.com>
Cc: Bernhard Rosenkraenzer <Bernhard.Rosenkranzer@linaro.org>
Cc: Irina Tirdea <irina.tirdea@intel.com>
Link: http://lkml.kernel.org/r/1399855645-25815-2-git-send-email-namhyung@kernel.org
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
---
tools/perf/builtin-record.c | 31 -------------------------
tools/perf/config/Makefile | 8 -------
tools/perf/config/feature-checks/Makefile | 4 ----
tools/perf/config/feature-checks/test-all.c | 5 ----
tools/perf/config/feature-checks/test-on-exit.c | 16 -------------
5 files changed, 64 deletions(-)
delete mode 100644 tools/perf/config/feature-checks/test-on-exit.c
diff --git a/tools/perf/builtin-record.c b/tools/perf/builtin-record.c
index 2e0d484..e4c85b8 100644
--- a/tools/perf/builtin-record.c
+++ b/tools/perf/builtin-record.c
@@ -30,37 +30,6 @@
#include <sched.h>
#include <sys/mman.h>
-#ifndef HAVE_ON_EXIT_SUPPORT
-#ifndef ATEXIT_MAX
-#define ATEXIT_MAX 32
-#endif
-static int __on_exit_count = 0;
-typedef void (*on_exit_func_t) (int, void *);
-static on_exit_func_t __on_exit_funcs[ATEXIT_MAX];
-static void *__on_exit_args[ATEXIT_MAX];
-static int __exitcode = 0;
-static void __handle_on_exit_funcs(void);
-static int on_exit(on_exit_func_t function, void *arg);
-#define exit(x) (exit)(__exitcode = (x))
-
-static int on_exit(on_exit_func_t function, void *arg)
-{
- if (__on_exit_count == ATEXIT_MAX)
- return -ENOMEM;
- else if (__on_exit_count == 0)
- atexit(__handle_on_exit_funcs);
- __on_exit_funcs[__on_exit_count] = function;
- __on_exit_args[__on_exit_count++] = arg;
- return 0;
-}
-
-static void __handle_on_exit_funcs(void)
-{
- int i;
- for (i = 0; i < __on_exit_count; i++)
- __on_exit_funcs[i] (__exitcode, __on_exit_args[i]);
-}
-#endif
struct record {
struct perf_tool tool;
diff --git a/tools/perf/config/Makefile b/tools/perf/config/Makefile
index 150c84c..f2edc59 100644
--- a/tools/perf/config/Makefile
+++ b/tools/perf/config/Makefile
@@ -174,7 +174,6 @@ CORE_FEATURE_TESTS = \
libpython-version \
libslang \
libunwind \
- on-exit \
stackprotector-all \
timerfd \
libdw-dwarf-unwind
@@ -200,7 +199,6 @@ VF_FEATURE_TESTS = \
libelf-getphdrnum \
libelf-mmap \
libpython-version \
- on-exit \
stackprotector-all \
timerfd \
libunwind-debug-frame \
@@ -571,12 +569,6 @@ ifneq ($(filter -lbfd,$(EXTLIBS)),)
CFLAGS += -DHAVE_LIBBFD_SUPPORT
endif
-ifndef NO_ON_EXIT
- ifeq ($(feature-on-exit), 1)
- CFLAGS += -DHAVE_ON_EXIT_SUPPORT
- endif
-endif
-
ifndef NO_BACKTRACE
ifeq ($(feature-backtrace), 1)
CFLAGS += -DHAVE_BACKTRACE_SUPPORT
diff --git a/tools/perf/config/feature-checks/Makefile b/tools/perf/config/feature-checks/Makefile
index 2da103c..64c84e5 100644
--- a/tools/perf/config/feature-checks/Makefile
+++ b/tools/perf/config/feature-checks/Makefile
@@ -24,7 +24,6 @@ FILES= \
test-libslang.bin \
test-libunwind.bin \
test-libunwind-debug-frame.bin \
- test-on-exit.bin \
test-stackprotector-all.bin \
test-timerfd.bin \
test-libdw-dwarf-unwind.bin
@@ -133,9 +132,6 @@ test-liberty-z.bin:
test-cplus-demangle.bin:
$(BUILD) -liberty
-test-on-exit.bin:
- $(BUILD)
-
test-backtrace.bin:
$(BUILD)
diff --git a/tools/perf/config/feature-checks/test-all.c b/tools/perf/config/feature-checks/test-all.c
index fc37eb3..fe5c1e5 100644
--- a/tools/perf/config/feature-checks/test-all.c
+++ b/tools/perf/config/feature-checks/test-all.c
@@ -69,10 +69,6 @@
# include "test-libbfd.c"
#undef main
-#define main main_test_on_exit
-# include "test-on-exit.c"
-#undef main
-
#define main main_test_backtrace
# include "test-backtrace.c"
#undef main
@@ -110,7 +106,6 @@ int main(int argc, char *argv[])
main_test_gtk2(argc, argv);
main_test_gtk2_infobar(argc, argv);
main_test_libbfd();
- main_test_on_exit();
main_test_backtrace();
main_test_libnuma();
main_test_timerfd();
diff --git a/tools/perf/config/feature-checks/test-on-exit.c b/tools/perf/config/feature-checks/test-on-exit.c
deleted file mode 100644
index 8e88b16..0000000
--- a/tools/perf/config/feature-checks/test-on-exit.c
+++ /dev/null
@@ -1,16 +0,0 @@
-#include <stdio.h>
-#include <stdlib.h>
-
-static void exit_fn(int status, void *__data)
-{
- printf("exit status: %d, data: %d\n", status, *(int *)__data);
-}
-
-static int data = 123;
-
-int main(void)
-{
- on_exit(exit_fn, &data);
-
- return 321;
-}
--
1.8.3.1
^ permalink raw reply related [flat|nested] 8+ messages in thread* [PATCH 6/6] perf tools: Use tid for finding thread
2014-05-12 9:27 [GIT PULL 0/6] perf/core improvements and fixes Jiri Olsa
` (4 preceding siblings ...)
2014-05-12 9:27 ` [PATCH 5/6] perf tools: Get rid of on_exit() feature test Jiri Olsa
@ 2014-05-12 9:27 ` Jiri Olsa
2014-05-12 15:59 ` [GIT PULL 0/6] perf/core improvements and fixes Ingo Molnar
6 siblings, 0 replies; 8+ messages in thread
From: Jiri Olsa @ 2014-05-12 9:27 UTC (permalink / raw)
To: Ingo Molnar; +Cc: linux-kernel, Namhyung Kim, Adrian Hunter, Jiri Olsa
From: Namhyung Kim <namhyung@kernel.org>
I believe that passing pid (instead of tid) as the 3rd arg of the
machine__find*_thread() was to find a main thread so that it can
search proper map group for symbols. However with the map sharing
patch applied, it now can do it in any thread.
It fixes a bug when each thread has different name, it only reports a
main thread for samples in other threads.
Cc: Adrian Hunter <adrian.hunter@intel.com>
Acked-by: David Ahern <dsahern@gmail.com>
Acked-by: Stephane Eranian <eranian@google.com>
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Link: http://lkml.kernel.org/r/1399856202-26221-1-git-send-email-namhyung@kernel.org
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
---
tools/perf/builtin-inject.c | 2 +-
tools/perf/builtin-kmem.c | 2 +-
tools/perf/tests/code-reading.c | 2 +-
tools/perf/tests/hists_filter.c | 1 +
tools/perf/tests/hists_link.c | 2 ++
tools/perf/util/build-id.c | 2 +-
tools/perf/util/event.c | 2 +-
7 files changed, 8 insertions(+), 5 deletions(-)
diff --git a/tools/perf/builtin-inject.c b/tools/perf/builtin-inject.c
index 3a73875..6a3af00 100644
--- a/tools/perf/builtin-inject.c
+++ b/tools/perf/builtin-inject.c
@@ -209,7 +209,7 @@ static int perf_event__inject_buildid(struct perf_tool *tool,
cpumode = event->header.misc & PERF_RECORD_MISC_CPUMODE_MASK;
- thread = machine__findnew_thread(machine, sample->pid, sample->pid);
+ thread = machine__findnew_thread(machine, sample->pid, sample->tid);
if (thread == NULL) {
pr_err("problem processing %d event, skipping it.\n",
event->header.type);
diff --git a/tools/perf/builtin-kmem.c b/tools/perf/builtin-kmem.c
index f91fa437..bef3376 100644
--- a/tools/perf/builtin-kmem.c
+++ b/tools/perf/builtin-kmem.c
@@ -235,7 +235,7 @@ static int process_sample_event(struct perf_tool *tool __maybe_unused,
struct machine *machine)
{
struct thread *thread = machine__findnew_thread(machine, sample->pid,
- sample->pid);
+ sample->tid);
if (thread == NULL) {
pr_debug("problem processing %d event, skipping it.\n",
diff --git a/tools/perf/tests/code-reading.c b/tools/perf/tests/code-reading.c
index adf3de3..67f2d63 100644
--- a/tools/perf/tests/code-reading.c
+++ b/tools/perf/tests/code-reading.c
@@ -256,7 +256,7 @@ static int process_sample_event(struct machine *machine,
return -1;
}
- thread = machine__findnew_thread(machine, sample.pid, sample.pid);
+ thread = machine__findnew_thread(machine, sample.pid, sample.tid);
if (!thread) {
pr_debug("machine__findnew_thread failed\n");
return -1;
diff --git a/tools/perf/tests/hists_filter.c b/tools/perf/tests/hists_filter.c
index 23dc2f4..4617a8b 100644
--- a/tools/perf/tests/hists_filter.c
+++ b/tools/perf/tests/hists_filter.c
@@ -69,6 +69,7 @@ static int add_hist_entries(struct perf_evlist *evlist, struct machine *machine)
evsel->hists.symbol_filter_str = NULL;
sample.pid = fake_samples[i].pid;
+ sample.tid = fake_samples[i].pid;
sample.ip = fake_samples[i].ip;
if (perf_event__preprocess_sample(&event, machine, &al,
diff --git a/tools/perf/tests/hists_link.c b/tools/perf/tests/hists_link.c
index e42d679..b009bbf 100644
--- a/tools/perf/tests/hists_link.c
+++ b/tools/perf/tests/hists_link.c
@@ -81,6 +81,7 @@ static int add_hist_entries(struct perf_evlist *evlist, struct machine *machine)
};
sample.pid = fake_common_samples[k].pid;
+ sample.tid = fake_common_samples[k].pid;
sample.ip = fake_common_samples[k].ip;
if (perf_event__preprocess_sample(&event, machine, &al,
&sample) < 0)
@@ -104,6 +105,7 @@ static int add_hist_entries(struct perf_evlist *evlist, struct machine *machine)
};
sample.pid = fake_samples[i][k].pid;
+ sample.tid = fake_samples[i][k].pid;
sample.ip = fake_samples[i][k].ip;
if (perf_event__preprocess_sample(&event, machine, &al,
&sample) < 0)
diff --git a/tools/perf/util/build-id.c b/tools/perf/util/build-id.c
index 6baabe6..a904a4c 100644
--- a/tools/perf/util/build-id.c
+++ b/tools/perf/util/build-id.c
@@ -25,7 +25,7 @@ int build_id__mark_dso_hit(struct perf_tool *tool __maybe_unused,
struct addr_location al;
u8 cpumode = event->header.misc & PERF_RECORD_MISC_CPUMODE_MASK;
struct thread *thread = machine__findnew_thread(machine, sample->pid,
- sample->pid);
+ sample->tid);
if (thread == NULL) {
pr_err("problem processing %d event, skipping it.\n",
diff --git a/tools/perf/util/event.c b/tools/perf/util/event.c
index dbcaea1..65795b8 100644
--- a/tools/perf/util/event.c
+++ b/tools/perf/util/event.c
@@ -788,7 +788,7 @@ int perf_event__preprocess_sample(const union perf_event *event,
{
u8 cpumode = event->header.misc & PERF_RECORD_MISC_CPUMODE_MASK;
struct thread *thread = machine__findnew_thread(machine, sample->pid,
- sample->pid);
+ sample->tid);
if (thread == NULL)
return -1;
--
1.8.3.1
^ permalink raw reply related [flat|nested] 8+ messages in thread* Re: [GIT PULL 0/6] perf/core improvements and fixes
2014-05-12 9:27 [GIT PULL 0/6] perf/core improvements and fixes Jiri Olsa
` (5 preceding siblings ...)
2014-05-12 9:27 ` [PATCH 6/6] perf tools: Use tid for finding thread Jiri Olsa
@ 2014-05-12 15:59 ` Ingo Molnar
6 siblings, 0 replies; 8+ messages in thread
From: Ingo Molnar @ 2014-05-12 15:59 UTC (permalink / raw)
To: Jiri Olsa
Cc: linux-kernel, Adrian Hunter, Arnaldo Carvalho de Melo,
Bernhard Rosenkraenzer, Corey Ashford, David Ahern, Dongsheng,
Frederic Weisbecker, Irina Tirdea, Namhyung Kim, Paul Mackerras,
Peter Zijlstra, Stephane Eranian
* Jiri Olsa <jolsa@kernel.org> wrote:
> hi Ingo,
> please consider pulling
>
> thanks,
> jirka
>
>
> The following changes since commit 3e46d21285577a8c9e4c37f9b1002e567c440b28:
>
> Merge tag 'perf-core-for-mingo' of git://git.kernel.org/pub/scm/linux/kernel/git/jolsa/perf into perf/core (2014-05-05 19:37:51 +0200)
>
> are available in the git repository at:
>
>
> git://git.kernel.org/pub/scm/linux/kernel/git/jolsa/perf.git tags/perf-core-for-mingo
>
> for you to fetch changes up to 13ce34df11833482cd698331fdbb3f8ced06340d:
>
> perf tools: Use tid for finding thread (2014-05-12 11:09:50 +0200)
>
> ----------------------------------------------------------------
> perf/core improvements and fixes:
>
> . Propagate exit status of a command line workload for
> record command (Namhyung Kim)
>
> . Use tid for finding thread (Namhyung Kim)
>
> . Clarify the output of perf sched map plus small sched
> command fixies (Dongsheng Yang)
>
> Signed-off-by: Jiri Olsa <jolsa@kernel.org>
>
> ----------------------------------------------------------------
> Dongsheng (3):
> perf tools: Add missing event for perf sched record.
> perf tools: Adapt the TASK_STATE_TO_CHAR_STR to new value in kernel space.
> perf tools: Clarify the output of perf sched map.
>
> Namhyung Kim (3):
> perf record: Propagate exit status of a command line workload
> perf tools: Get rid of on_exit() feature test
> perf tools: Use tid for finding thread
>
> tools/perf/builtin-inject.c | 2 +-
> tools/perf/builtin-kmem.c | 2 +-
> tools/perf/builtin-record.c | 158 +++++++++---------------
> tools/perf/builtin-sched.c | 38 +++---
> tools/perf/config/Makefile | 8 --
> tools/perf/config/feature-checks/Makefile | 4 -
> tools/perf/config/feature-checks/test-all.c | 5 -
> tools/perf/config/feature-checks/test-on-exit.c | 16 ---
> tools/perf/tests/code-reading.c | 2 +-
> tools/perf/tests/hists_filter.c | 1 +
> tools/perf/tests/hists_link.c | 2 +
> tools/perf/util/build-id.c | 2 +-
> tools/perf/util/event.c | 2 +-
> 13 files changed, 90 insertions(+), 152 deletions(-)
> delete mode 100644 tools/perf/config/feature-checks/test-on-exit.c
Pulled, thanks a lot Jiri!
Ingo
^ permalink raw reply [flat|nested] 8+ messages in thread