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Message-ID: <tip-bdc896617b4fcaa9c89da9a9c5b72660f6741d46@git.kernel.org>
Date: Sat, 31 Aug 2013 01:15:26 -0700
From: tip-bot for David Ahern <tipbot@...or.com>
To: linux-tip-commits@...r.kernel.org
Cc: acme@...hat.com, linux-kernel@...r.kernel.org, eranian@...gle.com,
paulus@...ba.org, hpa@...or.com, mingo@...nel.org,
peterz@...radead.org, efault@....de, fweisbec@...il.com,
dsahern@...il.com, adrian.hunter@...el.com, tglx@...utronix.de
Subject: [tip:perf/core] perf trace: Honor target pid /
tid options when analyzing a file
Commit-ID: bdc896617b4fcaa9c89da9a9c5b72660f6741d46
Gitweb: http://git.kernel.org/tip/bdc896617b4fcaa9c89da9a9c5b72660f6741d46
Author: David Ahern <dsahern@...il.com>
AuthorDate: Wed, 28 Aug 2013 22:29:53 -0600
Committer: Arnaldo Carvalho de Melo <acme@...hat.com>
CommitDate: Thu, 29 Aug 2013 17:45:39 -0300
perf trace: Honor target pid / tid options when analyzing a file
Allows capture of raw_syscall events for all processes or threads in a
task and then analyzing specific ones.
Signed-off-by: David Ahern <dsahern@...il.com>
Cc: Adrian Hunter <adrian.hunter@...el.com>
Cc: Frederic Weisbecker <fweisbec@...il.com>
Cc: Mike Galbraith <efault@....de>
Cc: Paul Mackerras <paulus@...ba.org>
Cc: Peter Zijlstra <peterz@...radead.org>
Cc: Stephane Eranian <eranian@...gle.com>
Link: http://lkml.kernel.org/r/1377750593-48046-4-git-send-email-dsahern@gmail.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@...hat.com>
---
tools/perf/builtin-trace.c | 43 +++++++++++++++++++++++++++++++++++++++++++
1 file changed, 43 insertions(+)
diff --git a/tools/perf/builtin-trace.c b/tools/perf/builtin-trace.c
index 2a6ebe1..845facc 100644
--- a/tools/perf/builtin-trace.c
+++ b/tools/perf/builtin-trace.c
@@ -8,6 +8,7 @@
#include "util/thread.h"
#include "util/parse-options.h"
#include "util/strlist.h"
+#include "util/intlist.h"
#include "util/thread_map.h"
#include <libaudit.h>
@@ -259,6 +260,8 @@ struct trace {
unsigned long nr_events;
struct strlist *ev_qualifier;
bool not_ev_qualifier;
+ struct intlist *tid_list;
+ struct intlist *pid_list;
bool sched;
bool multiple_threads;
double duration_filter;
@@ -653,6 +656,18 @@ out_dump:
return 0;
}
+static bool skip_sample(struct trace *trace, struct perf_sample *sample)
+{
+ if ((trace->pid_list && intlist__find(trace->pid_list, sample->pid)) ||
+ (trace->tid_list && intlist__find(trace->tid_list, sample->tid)))
+ return false;
+
+ if (trace->pid_list || trace->tid_list)
+ return true;
+
+ return false;
+}
+
static int trace__process_sample(struct perf_tool *tool,
union perf_event *event __maybe_unused,
struct perf_sample *sample,
@@ -664,6 +679,9 @@ static int trace__process_sample(struct perf_tool *tool,
tracepoint_handler handler = evsel->handler.func;
+ if (skip_sample(trace, sample))
+ return 0;
+
if (trace->base_time == 0)
trace->base_time = sample->time;
@@ -683,6 +701,27 @@ perf_session__has_tp(struct perf_session *session, const char *name)
return evsel != NULL;
}
+static int parse_target_str(struct trace *trace)
+{
+ if (trace->opts.target.pid) {
+ trace->pid_list = intlist__new(trace->opts.target.pid);
+ if (trace->pid_list == NULL) {
+ pr_err("Error parsing process id string\n");
+ return -EINVAL;
+ }
+ }
+
+ if (trace->opts.target.tid) {
+ trace->tid_list = intlist__new(trace->opts.target.tid);
+ if (trace->tid_list == NULL) {
+ pr_err("Error parsing thread id string\n");
+ return -EINVAL;
+ }
+ }
+
+ return 0;
+}
+
static int trace__run(struct trace *trace, int argc, const char **argv)
{
struct perf_evlist *evlist = perf_evlist__new();
@@ -869,6 +908,10 @@ static int trace__replay(struct trace *trace)
goto out;
}
+ err = parse_target_str(trace);
+ if (err != 0)
+ goto out;
+
setup_pager();
err = perf_session__process_events(session, &trace->tool);
--
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