From: Peter Zijlstra <a.p.zijlstra@chello.nl>
To: Jeff Garzik <jeff@garzik.org>
Cc: mingo@redhat.com, hpa@zytor.com, tglx@linutronix.de,
mingo@elte.hu, paulus@samba.org, linux-kernel@vger.kernel.org,
rostedt@goodmis.org,
linux-tip-commits <linux-tip-commits@vger.kernel.org>
Subject: Re: perf_counter: hook up the tracepoint events
Date: Wed, 29 Jul 2009 11:12:08 +0200 [thread overview]
Message-ID: <1248858728.6987.3055.camel@twins> (raw)
In-Reply-To: <4A700F8A.6000505@garzik.org>
On Wed, 2009-07-29 at 04:59 -0400, Jeff Garzik wrote:
> > @@ -957,6 +957,12 @@ config EVENT_PROFILE
> > bool "Tracepoint profile sources"
> > depends on PERF_COUNTERS && EVENT_TRACING
> > default y
> > + help
> > + Allow the use of tracepoints as software performance counters.
> > +
> > + When this is enabled, you can create perf counters based on
> > + tracepoints using PERF_TYPE_TRACEPOINT and the tracepoint ID
> > + found in debugfs://tracing/events/*/*/id.
>
> Thanks. Is this feature useful w/out debugfs?
Not really, but I was assuming (/me goes check) that EVENT_TRACING would
mandate debugfs being there.
Hmm kernel/trace/Kconfig seems a little select heavy, but I think it'll
work out and select DEBUG_FS too.
I'll queue up the patch and push it Linus wards this cycle.
Thanks!
next prev parent reply other threads:[~2009-07-29 9:09 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 [this message]
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 ` [PATCH 00/10] tracepoint perf counter events and new ABI Ingo Molnar
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