linux-kernel.vger.kernel.org archive mirror
 help / color / mirror / Atom feed
From: Arnaldo Carvalho de Melo <acme@kernel.org>
To: Ingo Molnar <mingo@kernel.org>
Cc: linux-kernel@vger.kernel.org, Namhyung Kim <namhyung@kernel.org>,
	David Ahern <dsahern@gmail.com>, Jiri Olsa <jolsa@kernel.org>,
	Peter Zijlstra <a.p.zijlstra@chello.nl>,
	Arnaldo Carvalho de Melo <acme@redhat.com>
Subject: [PATCH 2/4] perf sched timehist: Enlarge default 'comm_width'
Date: Thu, 22 Dec 2016 23:12:50 -0300	[thread overview]
Message-ID: <20161223021252.11225-3-acme@kernel.org> (raw)
In-Reply-To: <20161223021252.11225-1-acme@kernel.org>

From: Namhyung Kim <namhyung@kernel.org>

Current default value is 20 but it's easily changed to a bigger value as
task has a long name and different tid and pid.  And it makes the output
not aligned.  So change it to have a large value as summary shows.

Committer notes:

Before:

  # perf sched record
  ^C
  # perf sched timehist
  <SNIP>
    40602.770537 [0001]  rcuos/2[29]               7.970      0.002      0.020
    40602.771512 [0003]  <idle>                    0.003      0.000      0.986
    40602.771586 [0001]  <idle>                    0.020      0.000      1.049
    40602.771606 [0001]  qemu-system-x86[3593/3510]      0.000      0.002      0.020
    40602.771629 [0003]  qemu-system-x86[3510]           0.000      0.003      0.116
    40602.771776 [0000]  <idle>                          0.001      0.000      1.892
  <SNIP>

After:

  # perf sched timehist
  <SNIP>
   40602.770537 [0001]  rcuos/2[29]                         7.970      0.002      0.020
   40602.771512 [0003]  <idle>                              0.003      0.000      0.986
   40602.771586 [0001]  <idle>                              0.020      0.000      1.049
   40602.771606 [0001]  qemu-system-x86[3593/3510]          0.000      0.002      0.020
   40602.771629 [0003]  qemu-system-x86[3510]               0.000      0.003      0.116
  <SNIP>

Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/20161222060350.17655-1-namhyung@kernel.org
[ Split from a larger patch ]
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 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 020f9c9cef7b..c65f16cbae62 100644
--- a/tools/perf/builtin-sched.c
+++ b/tools/perf/builtin-sched.c
@@ -1775,7 +1775,7 @@ static u64 perf_evsel__get_time(struct perf_evsel *evsel, u32 cpu)
 	return r->last_time[cpu];
 }
 
-static int comm_width = 20;
+static int comm_width = 30;
 
 static char *timehist_get_commstr(struct thread *thread)
 {
-- 
2.9.3

  parent reply	other threads:[~2016-12-23  2:13 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-12-23  2:12 [GIT PULL 0/4] perf/urgent fixes for 'perf sched timehist' and samples/bpf/ testing Arnaldo Carvalho de Melo
2016-12-23  2:12 ` [PATCH 1/4] perf sched timehist: Honour 'comm_width' when aligning the headers Arnaldo Carvalho de Melo
2016-12-23  2:12 ` Arnaldo Carvalho de Melo [this message]
2016-12-23  2:12 ` [PATCH 3/4] perf sched timehist: Remove hardcoded 'comm_width' check at print_summary Arnaldo Carvalho de Melo
2016-12-23  2:12 ` [PATCH 4/4] perf sched timehist: Fix invalid period calculation Arnaldo Carvalho de Melo
2016-12-23 14:54 ` [GIT PULL 0/4] perf/urgent fixes for 'perf sched timehist' and samples/bpf/ testing Namhyung Kim
2016-12-23 19:24 ` 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=20161223021252.11225-3-acme@kernel.org \
    --to=acme@kernel.org \
    --cc=a.p.zijlstra@chello.nl \
    --cc=acme@redhat.com \
    --cc=dsahern@gmail.com \
    --cc=jolsa@kernel.org \
    --cc=linux-kernel@vger.kernel.org \
    --cc=mingo@kernel.org \
    --cc=namhyung@kernel.org \
    /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;
as well as URLs for NNTP newsgroup(s).