From: Arnaldo Carvalho de Melo <acme@kernel.org>
To: Ingo Molnar <mingo@kernel.org>, Thomas Gleixner <tglx@linutronix.de>
Cc: Jiri Olsa <jolsa@kernel.org>, Namhyung Kim <namhyung@kernel.org>,
Clark Williams <williams@redhat.com>,
linux-kernel@vger.kernel.org, linux-perf-users@vger.kernel.org,
Ravi Bangoria <ravi.bangoria@linux.ibm.com>,
Arnaldo Carvalho de Melo <acme@redhat.com>,
Adrian Hunter <adrian.hunter@intel.com>,
Alexey Budankov <alexey.budankov@linux.intel.com>,
Changbin Du <changbin.du@intel.com>,
Ian Rogers <irogers@google.com>,
Jin Yao <yao.jin@linux.intel.com>, Leo Yan <leo.yan@linaro.org>,
Song Liu <songliubraving@fb.com>,
Taeung Song <treeze.taeung@gmail.com>,
Thomas Richter <tmricht@linux.ibm.com>,
Yisheng Xie <xieyisheng1@huawei.com>
Subject: [PATCH 07/15] perf annotate: Make perf config effective
Date: Fri, 28 Feb 2020 11:00:06 -0300 [thread overview]
Message-ID: <20200228140014.1236-8-acme@kernel.org> (raw)
In-Reply-To: <20200228140014.1236-1-acme@kernel.org>
From: Ravi Bangoria <ravi.bangoria@linux.ibm.com>
perf default config set by user in [annotate] section is totally ignored
by annotate code. Fix it.
Before:
$ ./perf config
annotate.hide_src_code=true
annotate.show_nr_jumps=true
annotate.show_nr_samples=true
$ ./perf annotate shash
│ unsigned h = 0;
│ movl $0x0,-0xc(%rbp)
│ while (*s)
│ ↓ jmp 44
│ h = 65599 * h + *s++;
11.33 │24: mov -0xc(%rbp),%eax
43.50 │ imul $0x1003f,%eax,%ecx
│ mov -0x18(%rbp),%rax
After:
│ movl $0x0,-0xc(%rbp)
│ ↓ jmp 44
1 │1 24: mov -0xc(%rbp),%eax
4 │ imul $0x1003f,%eax,%ecx
│ mov -0x18(%rbp),%rax
Note that we have removed show_nr_samples and show_total_period from
annotation_options because they are not used. Instead of them we use
symbol_conf.show_nr_samples and symbol_conf.show_total_period.
Committer testing:
Using 'perf annotate --stdio2' to use the TUI rendering but emitting the output to stdio:
# perf config
#
# perf config annotate.hide_src_code=true
# perf config
annotate.hide_src_code=true
#
# perf config annotate.show_nr_jumps=true
# perf config annotate.show_nr_samples=true
# perf config
annotate.hide_src_code=true
annotate.show_nr_jumps=true
annotate.show_nr_samples=true
#
#
Before:
# perf annotate --stdio2 ObjectInstance::weak_pointer_was_finalized
Samples: 1 of event 'cycles', 4000 Hz, Event count (approx.): 830873, [percent: local period]
ObjectInstance::weak_pointer_was_finalized() /usr/lib64/libgjs.so.0.0.0
Percent
00000000000609f0 <ObjectInstance::weak_pointer_was_finalized()@@Base>:
endbr64
cmpq $0x0,0x20(%rdi)
↓ je 10
xor %eax,%eax
← retq
xchg %ax,%ax
100.00 10: push %rbp
cmpq $0x0,0x18(%rdi)
mov %rdi,%rbp
↓ jne 20
1b: xor %eax,%eax
pop %rbp
← retq
nop
20: lea 0x18(%rdi),%rdi
→ callq JS_UpdateWeakPointerAfterGC(JS::Heap<JSObject*
cmpq $0x0,0x18(%rbp)
↑ jne 1b
mov %rbp,%rdi
→ callq ObjectBase::jsobj_addr() const@plt
mov $0x1,%eax
pop %rbp
← retq
#
After:
# perf annotate --stdio2 ObjectInstance::weak_pointer_was_finalized 2> /dev/null
Samples: 1 of event 'cycles', 4000 Hz, Event count (approx.): 830873, [percent: local period]
ObjectInstance::weak_pointer_was_finalized() /usr/lib64/libgjs.so.0.0.0
Samples endbr64
cmpq $0x0,0x20(%rdi)
↓ je 10
xor %eax,%eax
← retq
xchg %ax,%ax
1 1 10: push %rbp
cmpq $0x0,0x18(%rdi)
mov %rdi,%rbp
↓ jne 20
1 1b: xor %eax,%eax
pop %rbp
← retq
nop
1 20: lea 0x18(%rdi),%rdi
→ callq JS_UpdateWeakPointerAfterGC(JS::Heap<JSObject*
cmpq $0x0,0x18(%rbp)
↑ jne 1b
mov %rbp,%rdi
→ callq ObjectBase::jsobj_addr() const@plt
mov $0x1,%eax
pop %rbp
← retq
#
# perf config annotate.show_nr_jumps
annotate.show_nr_jumps=true
# perf config annotate.show_nr_jumps=false
# perf config annotate.show_nr_jumps
annotate.show_nr_jumps=false
#
# perf annotate --stdio2 ObjectInstance::weak_pointer_was_finalized 2> /dev/null
Samples: 1 of event 'cycles', 4000 Hz, Event count (approx.): 830873, [percent: local period]
ObjectInstance::weak_pointer_was_finalized() /usr/lib64/libgjs.so.0.0.0
Samples endbr64
cmpq $0x0,0x20(%rdi)
↓ je 10
xor %eax,%eax
← retq
xchg %ax,%ax
1 10: push %rbp
cmpq $0x0,0x18(%rdi)
mov %rdi,%rbp
↓ jne 20
1b: xor %eax,%eax
pop %rbp
← retq
nop
20: lea 0x18(%rdi),%rdi
→ callq JS_UpdateWeakPointerAfterGC(JS::Heap<JSObject*
cmpq $0x0,0x18(%rbp)
↑ jne 1b
mov %rbp,%rdi
→ callq ObjectBase::jsobj_addr() const@plt
mov $0x1,%eax
pop %rbp
← retq
#
Signed-off-by: Ravi Bangoria <ravi.bangoria@linux.ibm.com>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexey Budankov <alexey.budankov@linux.intel.com>
Cc: Changbin Du <changbin.du@intel.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Jin Yao <yao.jin@linux.intel.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Leo Yan <leo.yan@linaro.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Song Liu <songliubraving@fb.com>
Cc: Taeung Song <treeze.taeung@gmail.com>
Cc: Thomas Richter <tmricht@linux.ibm.com>
Cc: Yisheng Xie <xieyisheng1@huawei.com>
Link: http://lore.kernel.org/lkml/20200213064306.160480-6-ravi.bangoria@linux.ibm.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
tools/perf/builtin-annotate.c | 2 +-
tools/perf/builtin-report.c | 2 +-
tools/perf/builtin-top.c | 2 +-
tools/perf/util/annotate.c | 78 +++++++++++++----------------------
tools/perf/util/annotate.h | 4 +-
5 files changed, 33 insertions(+), 55 deletions(-)
diff --git a/tools/perf/builtin-annotate.c b/tools/perf/builtin-annotate.c
index ff61795a4d13..ea89077bb8e0 100644
--- a/tools/perf/builtin-annotate.c
+++ b/tools/perf/builtin-annotate.c
@@ -605,7 +605,7 @@ int cmd_annotate(int argc, const char **argv)
if (ret < 0)
goto out_delete;
- annotation_config__init();
+ annotation_config__init(&annotate.opts);
symbol_conf.try_vmlinux_path = true;
diff --git a/tools/perf/builtin-report.c b/tools/perf/builtin-report.c
index 9483b3f0cae3..72a12b69f120 100644
--- a/tools/perf/builtin-report.c
+++ b/tools/perf/builtin-report.c
@@ -1507,7 +1507,7 @@ int cmd_report(int argc, const char **argv)
symbol_conf.priv_size += sizeof(u32);
symbol_conf.sort_by_name = true;
}
- annotation_config__init();
+ annotation_config__init(&report.annotation_opts);
}
if (symbol__init(&session->header.env) < 0)
diff --git a/tools/perf/builtin-top.c b/tools/perf/builtin-top.c
index 8affcab75604..cc26aeab6a66 100644
--- a/tools/perf/builtin-top.c
+++ b/tools/perf/builtin-top.c
@@ -1683,7 +1683,7 @@ int cmd_top(int argc, const char **argv)
if (status < 0)
goto out_delete_evlist;
- annotation_config__init();
+ annotation_config__init(&top.annotation_opts);
symbol_conf.try_vmlinux_path = (symbol_conf.vmlinux_name == NULL);
status = symbol__init(NULL);
diff --git a/tools/perf/util/annotate.c b/tools/perf/util/annotate.c
index f0741daf94ef..3b79da595db6 100644
--- a/tools/perf/util/annotate.c
+++ b/tools/perf/util/annotate.c
@@ -3094,66 +3094,46 @@ int symbol__annotate2(struct map_symbol *ms, struct evsel *evsel,
return err;
}
-#define ANNOTATION__CFG(n) \
- { .name = #n, .value = &annotation__default_options.n, }
-
-/*
- * Keep the entries sorted, they are bsearch'ed
- */
-static struct annotation_config {
- const char *name;
- void *value;
-} annotation__configs[] = {
- ANNOTATION__CFG(hide_src_code),
- ANNOTATION__CFG(jump_arrows),
- ANNOTATION__CFG(offset_level),
- ANNOTATION__CFG(show_linenr),
- ANNOTATION__CFG(show_nr_jumps),
- ANNOTATION__CFG(show_nr_samples),
- ANNOTATION__CFG(show_total_period),
- ANNOTATION__CFG(use_offset),
-};
-
-#undef ANNOTATION__CFG
-
-static int annotation_config__cmp(const void *name, const void *cfgp)
+static int annotation__config(const char *var, const char *value, void *data)
{
- const struct annotation_config *cfg = cfgp;
-
- return strcmp(name, cfg->name);
-}
-
-static int annotation__config(const char *var, const char *value,
- void *data __maybe_unused)
-{
- struct annotation_config *cfg;
- const char *name;
+ struct annotation_options *opt = data;
if (!strstarts(var, "annotate."))
return 0;
- name = var + 9;
- cfg = bsearch(name, annotation__configs, ARRAY_SIZE(annotation__configs),
- sizeof(struct annotation_config), annotation_config__cmp);
-
- if (cfg == NULL)
- pr_debug("%s variable unknown, ignoring...", var);
- else if (strcmp(var, "annotate.offset_level") == 0) {
- perf_config_int(cfg->value, name, value);
-
- if (*(int *)cfg->value > ANNOTATION__MAX_OFFSET_LEVEL)
- *(int *)cfg->value = ANNOTATION__MAX_OFFSET_LEVEL;
- else if (*(int *)cfg->value < ANNOTATION__MIN_OFFSET_LEVEL)
- *(int *)cfg->value = ANNOTATION__MIN_OFFSET_LEVEL;
+ if (!strcmp(var, "annotate.offset_level")) {
+ perf_config_u8(&opt->offset_level, "offset_level", value);
+
+ if (opt->offset_level > ANNOTATION__MAX_OFFSET_LEVEL)
+ opt->offset_level = ANNOTATION__MAX_OFFSET_LEVEL;
+ else if (opt->offset_level < ANNOTATION__MIN_OFFSET_LEVEL)
+ opt->offset_level = ANNOTATION__MIN_OFFSET_LEVEL;
+ } else if (!strcmp(var, "annotate.hide_src_code")) {
+ opt->hide_src_code = perf_config_bool("hide_src_code", value);
+ } else if (!strcmp(var, "annotate.jump_arrows")) {
+ opt->jump_arrows = perf_config_bool("jump_arrows", value);
+ } else if (!strcmp(var, "annotate.show_linenr")) {
+ opt->show_linenr = perf_config_bool("show_linenr", value);
+ } else if (!strcmp(var, "annotate.show_nr_jumps")) {
+ opt->show_nr_jumps = perf_config_bool("show_nr_jumps", value);
+ } else if (!strcmp(var, "annotate.show_nr_samples")) {
+ symbol_conf.show_nr_samples = perf_config_bool("show_nr_samples",
+ value);
+ } else if (!strcmp(var, "annotate.show_total_period")) {
+ symbol_conf.show_total_period = perf_config_bool("show_total_period",
+ value);
+ } else if (!strcmp(var, "annotate.use_offset")) {
+ opt->use_offset = perf_config_bool("use_offset", value);
} else {
- *(bool *)cfg->value = perf_config_bool(name, value);
+ pr_debug("%s variable unknown, ignoring...", var);
}
+
return 0;
}
-void annotation_config__init(void)
+void annotation_config__init(struct annotation_options *opt)
{
- perf_config(annotation__config, NULL);
+ perf_config(annotation__config, opt);
}
static unsigned int parse_percent_type(char *str1, char *str2)
diff --git a/tools/perf/util/annotate.h b/tools/perf/util/annotate.h
index 6237c2cc582d..8e54184b43dc 100644
--- a/tools/perf/util/annotate.h
+++ b/tools/perf/util/annotate.h
@@ -83,8 +83,6 @@ struct annotation_options {
full_path,
show_linenr,
show_nr_jumps,
- show_nr_samples,
- show_total_period,
show_minmax_cycle,
show_asm_raw,
annotate_src;
@@ -413,7 +411,7 @@ static inline int symbol__tui_annotate(struct map_symbol *ms __maybe_unused,
}
#endif
-void annotation_config__init(void);
+void annotation_config__init(struct annotation_options *opt);
int annotate_parse_percent_type(const struct option *opt, const char *_str,
int unset);
--
2.21.1
next prev parent reply other threads:[~2020-02-28 14:00 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-02-28 13:59 [GIT PULL] perf/urgent fixes Arnaldo Carvalho de Melo
2020-02-28 14:00 ` [PATCH 01/15] tools arch x86: Sync the msr-index.h copy with the kernel sources Arnaldo Carvalho de Melo
2020-02-28 14:00 ` [PATCH 02/15] tools headers UAPI: Update tools's copy of kvm.h headers Arnaldo Carvalho de Melo
2020-02-28 14:00 ` [PATCH 03/15] perf annotate/tui: Re-render title bar after switching back from script browser Arnaldo Carvalho de Melo
2020-02-28 14:00 ` [PATCH 04/15] perf annotate: Fix --show-total-period for tui/stdio2 Arnaldo Carvalho de Melo
2020-02-28 14:00 ` [PATCH 05/15] perf annotate: Fix --show-nr-samples " Arnaldo Carvalho de Melo
2020-02-28 14:00 ` [PATCH 06/15] perf config: Introduce perf_config_u8() Arnaldo Carvalho de Melo
2020-02-28 14:00 ` Arnaldo Carvalho de Melo [this message]
2020-02-28 14:00 ` [PATCH 08/15] perf annotate: Prefer cmdline option over default config Arnaldo Carvalho de Melo
2020-02-28 14:00 ` [PATCH 09/15] perf annotate: Fix perf config option description Arnaldo Carvalho de Melo
2020-02-28 14:00 ` [PATCH 10/15] perf config: Document missing config options Arnaldo Carvalho de Melo
2020-02-28 14:00 ` [PATCH 11/15] perf probe: Check return value of strlist__add() for -ENOMEM Arnaldo Carvalho de Melo
2020-02-28 14:00 ` [PATCH 12/15] perf annotate: Remove privsize from symbol__annotate() args Arnaldo Carvalho de Melo
2020-02-28 14:00 ` [PATCH 13/15] perf annotate: Simplify disasm_line allocation and freeing code Arnaldo Carvalho de Melo
2020-02-28 14:00 ` [PATCH 14/15] perf annotate: Align struct annotate_args Arnaldo Carvalho de Melo
2020-02-28 14:00 ` [PATCH 15/15] perf annotate: Fix segfault with source toggle Arnaldo Carvalho de Melo
2020-02-29 9:11 ` [GIT PULL] perf/urgent fixes Ingo Molnar
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20200228140014.1236-8-acme@kernel.org \
--to=acme@kernel.org \
--cc=acme@redhat.com \
--cc=adrian.hunter@intel.com \
--cc=alexey.budankov@linux.intel.com \
--cc=changbin.du@intel.com \
--cc=irogers@google.com \
--cc=jolsa@kernel.org \
--cc=leo.yan@linaro.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-perf-users@vger.kernel.org \
--cc=mingo@kernel.org \
--cc=namhyung@kernel.org \
--cc=ravi.bangoria@linux.ibm.com \
--cc=songliubraving@fb.com \
--cc=tglx@linutronix.de \
--cc=tmricht@linux.ibm.com \
--cc=treeze.taeung@gmail.com \
--cc=williams@redhat.com \
--cc=xieyisheng1@huawei.com \
--cc=yao.jin@linux.intel.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.