From: Ian Rogers <irogers@google.com>
To: Peter Zijlstra <peterz@infradead.org>,
Ingo Molnar <mingo@redhat.com>,
Arnaldo Carvalho de Melo <acme@kernel.org>,
Namhyung Kim <namhyung@kernel.org>,
Mark Rutland <mark.rutland@arm.com>,
Alexander Shishkin <alexander.shishkin@linux.intel.com>,
Jiri Olsa <jolsa@kernel.org>, Ian Rogers <irogers@google.com>,
Adrian Hunter <adrian.hunter@intel.com>,
Kan Liang <kan.liang@linux.intel.com>,
James Clark <james.clark@linaro.org>,
Dapeng Mi <dapeng1.mi@linux.intel.com>,
Thomas Richter <tmricht@linux.ibm.com>,
Veronika Molnarova <vmolnaro@redhat.com>,
Hao Ge <gehao@kylinos.cn>, Howard Chu <howardchu95@gmail.com>,
Weilin Wang <weilin.wang@intel.com>,
Levi Yun <yeoreum.yun@arm.com>,
"Dr. David Alan Gilbert" <linux@treblig.org>,
Dominique Martinet <asmadeus@codewreck.org>,
Xu Yang <xu.yang_2@nxp.com>,
Tengda Wu <wutengda@huaweicloud.com>,
linux-perf-users@vger.kernel.org, linux-kernel@vger.kernel.org,
bpf@vger.kernel.org
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Subject: [PATCH v2 02/12] perf bench evlist-open-close: Reduce scope of 2 variables
Date: Thu, 10 Apr 2025 10:36:21 -0700 [thread overview]
Message-ID: <20250410173631.1713627-3-irogers@google.com> (raw)
In-Reply-To: <20250410173631.1713627-1-irogers@google.com>
Make 2 global variables local. Reduces ELF binary size by removing
relocations. For a no flags build, the perf binary size is reduced by
4,144 bytes on x86-64.
Signed-off-by: Ian Rogers <irogers@google.com>
Reviewed-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
tools/perf/bench/evlist-open-close.c | 42 +++++++++++++++-------------
1 file changed, 23 insertions(+), 19 deletions(-)
diff --git a/tools/perf/bench/evlist-open-close.c b/tools/perf/bench/evlist-open-close.c
index 5a27691469ed..79cedcf94a39 100644
--- a/tools/perf/bench/evlist-open-close.c
+++ b/tools/perf/bench/evlist-open-close.c
@@ -46,25 +46,6 @@ static struct record_opts opts = {
.ctl_fd_ack = -1,
};
-static const struct option options[] = {
- OPT_STRING('e', "event", &event_string, "event", "event selector. use 'perf list' to list available events"),
- OPT_INTEGER('n', "nr-events", &nr_events,
- "number of dummy events to create (default 1). If used with -e, it clones those events n times (1 = no change)"),
- OPT_INTEGER('i', "iterations", &iterations, "Number of iterations used to compute average (default=100)"),
- OPT_BOOLEAN('a', "all-cpus", &opts.target.system_wide, "system-wide collection from all CPUs"),
- OPT_STRING('C', "cpu", &opts.target.cpu_list, "cpu", "list of cpus where to open events"),
- OPT_STRING('p', "pid", &opts.target.pid, "pid", "record events on existing process id"),
- OPT_STRING('t', "tid", &opts.target.tid, "tid", "record events on existing thread id"),
- OPT_STRING('u', "uid", &opts.target.uid_str, "user", "user to profile"),
- OPT_BOOLEAN(0, "per-thread", &opts.target.per_thread, "use per-thread mmaps"),
- OPT_END()
-};
-
-static const char *const bench_usage[] = {
- "perf bench internals evlist-open-close <options>",
- NULL
-};
-
static int evlist__count_evsel_fds(struct evlist *evlist)
{
struct evsel *evsel;
@@ -225,6 +206,29 @@ static char *bench__repeat_event_string(const char *evstr, int n)
int bench_evlist_open_close(int argc, const char **argv)
{
+ const struct option options[] = {
+ OPT_STRING('e', "event", &event_string, "event",
+ "event selector. use 'perf list' to list available events"),
+ OPT_INTEGER('n', "nr-events", &nr_events,
+ "number of dummy events to create (default 1). If used with -e, it clones those events n times (1 = no change)"),
+ OPT_INTEGER('i', "iterations", &iterations,
+ "Number of iterations used to compute average (default=100)"),
+ OPT_BOOLEAN('a', "all-cpus", &opts.target.system_wide,
+ "system-wide collection from all CPUs"),
+ OPT_STRING('C', "cpu", &opts.target.cpu_list, "cpu",
+ "list of cpus where to open events"),
+ OPT_STRING('p', "pid", &opts.target.pid, "pid",
+ "record events on existing process id"),
+ OPT_STRING('t', "tid", &opts.target.tid, "tid",
+ "record events on existing thread id"),
+ OPT_STRING('u', "uid", &opts.target.uid_str, "user", "user to profile"),
+ OPT_BOOLEAN(0, "per-thread", &opts.target.per_thread, "use per-thread mmaps"),
+ OPT_END()
+ };
+ const char *const bench_usage[] = {
+ "perf bench internals evlist-open-close <options>",
+ NULL
+ };
char *evstr, errbuf[BUFSIZ];
int err;
--
2.49.0.604.gff1f9ca942-goog
next prev parent reply other threads:[~2025-04-10 17:36 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-04-10 17:36 [PATCH v2 00/12] Move uid filtering to BPF filters Ian Rogers
2025-04-10 17:36 ` [PATCH v2 01/12] perf tests record: Cleanup improvements Ian Rogers
2025-04-10 17:36 ` Ian Rogers [this message]
2025-04-10 17:36 ` [PATCH v2 03/12] perf parse-events filter: Use evsel__find_pmu Ian Rogers
2025-04-10 17:36 ` [PATCH v2 04/12] perf target: Separate parse_uid into its own function Ian Rogers
2025-04-10 17:36 ` [PATCH v2 05/12] perf parse-events: Add parse_uid_filter helper Ian Rogers
2025-04-10 17:36 ` [PATCH v2 06/12] perf record: Switch user option to use BPF filter Ian Rogers
2025-04-24 21:35 ` Arnaldo Carvalho de Melo
2025-04-10 17:36 ` [PATCH v2 07/12] perf tests record: Add basic uid filtering test Ian Rogers
2025-04-10 17:36 ` [PATCH v2 08/12] perf top: Switch user option to use BPF filter Ian Rogers
2025-04-10 17:36 ` [PATCH v2 09/12] perf trace: " Ian Rogers
2025-04-10 17:36 ` [PATCH v2 10/12] perf bench evlist-open-close: " Ian Rogers
2025-04-10 17:36 ` [PATCH v2 11/12] perf target: Remove uid from target Ian Rogers
2025-04-10 17:36 ` [PATCH v2 12/12] perf thread_map: Remove uid options Ian Rogers
2025-04-24 20:25 ` [PATCH v2 00/12] Move uid filtering to BPF filters Ian Rogers
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=20250410173631.1713627-3-irogers@google.com \
--to=irogers@google.com \
--cc=acme@kernel.org \
--cc=acme@redhat.com \
--cc=adrian.hunter@intel.com \
--cc=alexander.shishkin@linux.intel.com \
--cc=asmadeus@codewreck.org \
--cc=bpf@vger.kernel.org \
--cc=dapeng1.mi@linux.intel.com \
--cc=gehao@kylinos.cn \
--cc=howardchu95@gmail.com \
--cc=james.clark@linaro.org \
--cc=jolsa@kernel.org \
--cc=kan.liang@linux.intel.com \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-perf-users@vger.kernel.org \
--cc=linux@treblig.org \
--cc=mark.rutland@arm.com \
--cc=mingo@redhat.com \
--cc=namhyung@kernel.org \
--cc=peterz@infradead.org \
--cc=tmricht@linux.ibm.com \
--cc=vmolnaro@redhat.com \
--cc=weilin.wang@intel.com \
--cc=wutengda@huaweicloud.com \
--cc=xu.yang_2@nxp.com \
--cc=yeoreum.yun@arm.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 a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox