From: Ingo Molnar <mingo@elte.hu>
To: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: paulus@samba.org, rostedt@goodmis.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH 00/10] tracepoint perf counter events and new ABI
Date: Fri, 20 Mar 2009 10:27:14 +0100 [thread overview]
Message-ID: <20090320092714.GA6256@elte.hu> (raw)
In-Reply-To: <20090319192610.660857280@chello.nl>
* Peter Zijlstra <a.p.zijlstra@chello.nl> wrote:
> These patches change the event tracer to provide id files:
>
> [root@opteron ~]# for i in /debug/tracing/events/irq/*/id; do echo `cat $i` - $i; done
> 28 - /debug/tracing/events/irq/irq_handler_entry/id
> 29 - /debug/tracing/events/irq/irq_handler_exit/id
> 27 - /debug/tracing/events/irq/softirq_entry/id
> 26 - /debug/tracing/events/irq/softirq_exit/id
>
> These can then be used in profiling as:
>
> [root@opteron linux-2.6]# ~/perfstat -e 2:28 make O=native-build/ -j4 lib
> ...
>
> Performance counter stats for 'make':
>
> 18280.657602 task clock ticks (msecs)
>
> 465 tp: 28 (events)
>
> Wall-clock time elapsed: 11265.199196 msecs
>
> Showing that we had 465 irq_handler_entry events during that workload.
nice! I suspect perfstat could use "-e irq_handler_entry" type of
symbolic input as well.
I've started picking up the patches and started testing them.
Thanks Peter,
Ingo
prev parent reply other threads:[~2009-03-20 9:27 UTC|newest]
Thread overview: 30+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-03-19 19:26 [PATCH 00/10] tracepoint perf counter events and new ABI Peter Zijlstra
2009-03-19 19:26 ` [PATCH 01/10] perf_counter: fix uninitialized usage of event_list Peter Zijlstra
2009-03-20 10:24 ` [tip:perfcounters/core] " Peter Zijlstra
2009-03-19 19:26 ` [PATCH 02/10] perf_counter: generic context switch event Peter Zijlstra
2009-03-20 10:24 ` [tip:perfcounters/core] " Peter Zijlstra
2009-03-19 19:26 ` [PATCH 03/10] ftrace: provide an id file for each event Peter Zijlstra
2009-03-20 10:19 ` [tip:tracing/ftrace] " Peter Zijlstra
2009-03-19 19:26 ` [PATCH 04/10] ftrace: ensure every event gets an id Peter Zijlstra
2009-03-20 10:19 ` [tip:tracing/ftrace] " Peter Zijlstra
2009-03-19 19:26 ` [PATCH 05/10] ftrace: event profile hooks Peter Zijlstra
2009-03-20 10:19 ` [tip:tracing/ftrace] " Peter Zijlstra
2009-03-19 19:26 ` [PATCH 06/10] perf_counter: fix up counter free paths Peter Zijlstra
2009-03-20 10:25 ` [tip:perfcounters/core] " Peter Zijlstra
2009-03-19 19:26 ` [PATCH 07/10] perf_counter: hook up the tracepoint events Peter Zijlstra
2009-03-20 10:25 ` [tip:perfcounters/core] " Peter Zijlstra
2009-03-22 8:57 ` Ingo Molnar
2009-07-29 1:01 ` Jeff Garzik
2009-07-29 8:35 ` Peter Zijlstra
2009-07-29 8:59 ` Jeff Garzik
2009-07-29 9:12 ` Peter Zijlstra
2009-08-02 13:09 ` [tip:perfcounters/core] tracing, perf_counter: Add help text to CONFIG_EVENT_PROFILE tip-bot for Peter Zijlstra
2009-03-19 19:26 ` [PATCH 08/10] perf_counter: revamp syscall input ABI Peter Zijlstra
2009-03-20 10:25 ` [tip:perfcounters/core] " Peter Zijlstra
2009-03-19 19:26 ` [PATCH 09/10] perf_counter: unify irq output code Peter Zijlstra
2009-03-20 10:25 ` [tip:perfcounters/core] " Peter Zijlstra
2009-03-19 19:26 ` [PATCH 10/10] perf_counter: powerpc: clean up perc_counter_interrupt Peter Zijlstra
2009-03-19 22:17 ` Paul Mackerras
2009-03-20 8:54 ` Ingo Molnar
2009-03-20 10:25 ` [tip:perfcounters/core] " Paul Mackerras
2009-03-20 9:27 ` Ingo Molnar [this message]
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