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Date: Tue, 15 Sep 2009 09:36:30 GMT
From: tip-bot for Ingo Molnar <mingo@elte.hu>
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To: linux-tip-commits@vger.kernel.org
Subject: [tip:perfcounters/core] perf sched: Fix 'perf sched latency' output on 32-bit systems
Message-ID: <tip-d11533893b31ab7806ff04bfa69ae646068610ce@git.kernel.org>
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Commit-ID:  d11533893b31ab7806ff04bfa69ae646068610ce
Gitweb:     http://git.kernel.org/tip/d11533893b31ab7806ff04bfa69ae646068610ce
Author:     Ingo Molnar <mingo@elte.hu>
AuthorDate: Mon, 14 Sep 2009 18:22:53 +0200
Committer:  Ingo Molnar <mingo@elte.hu>
CommitDate: Mon, 14 Sep 2009 18:22:53 +0200

perf sched: Fix 'perf sched latency' output on 32-bit systems

Before:

  -----------------------------------------------------------------------------------
   Task              |  Runtime ms | Switches | Average delay ms | Maximum delay ms |
  -----------------------------------------------------------------------------------
   perf              |4853313.251 ms |       10 | avg:    0.046 ms | max:    0.337 ms |
   flush-8:0         |2426659.202 ms |        5 | avg:    0.015 ms | max:    0.016 ms |
   sleep             |485331.966 ms |        1 | avg:    0.012 ms | max:    0.012 ms |
   ksoftirqd/1       |485331.320 ms |        1 | avg:    0.005 ms | max:    0.005 ms |
  -----------------------------------------------------------------------------------
   TOTAL:            |8250635.739 ms |       17 |
  ---------------------------------------------

After:

  -----------------------------------------------------------------------------------
   Task              |  Runtime ms | Switches | Average delay ms | Maximum delay ms |
  -----------------------------------------------------------------------------------
   perf              |    0.206 ms |       10 | avg:    0.046 ms | max:    0.337 ms |
   flush-8:0         |    2.680 ms |        5 | avg:    0.015 ms | max:    0.016 ms |
   sleep             |    0.662 ms |        1 | avg:    0.012 ms | max:    0.012 ms |
   ksoftirqd/1       |    0.015 ms |        1 | avg:    0.005 ms | max:    0.005 ms |
  -----------------------------------------------------------------------------------
   TOTAL:            |    3.563 ms |       17 |
  ---------------------------------------------

Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
LKML-Reference: <new-submission>
Signed-off-by: Ingo Molnar <mingo@elte.hu>


---
 tools/perf/builtin-sched.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/tools/perf/builtin-sched.c b/tools/perf/builtin-sched.c
index 2ce87ef..f856a02 100644
--- a/tools/perf/builtin-sched.c
+++ b/tools/perf/builtin-sched.c
@@ -805,7 +805,7 @@ replay_wakeup_event(struct trace_wakeup_event *wakeup_event,
 	add_sched_event_wakeup(waker, timestamp, wakee);
 }
 
-static unsigned long cpu_last_switched[MAX_CPUS];
+static u64 cpu_last_switched[MAX_CPUS];
 
 static void
 replay_switch_event(struct trace_switch_event *switch_event,