From: Peter Zijlstra <a.p.zijlstra@chello.nl>
To: Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca>
Cc: Frederic Weisbecker <fweisbec@gmail.com>,
prasad@linux.vnet.ibm.com, Ingo Molnar <mingo@elte.hu>,
LKML <linux-kernel@vger.kernel.org>,
Steven Rostedt <rostedt@goodmis.org>,
Thomas Gleixner <tglx@linutronix.de>,
Mike Galbraith <efault@gmx.de>, Paul Mackerras <paulus@samba.org>,
Arnaldo Carvalho de Melo <acme@redhat.com>,
Lai Jiangshan <laijs@cn.fujitsu.com>,
Anton Blanchard <anton@samba.org>, Li Zefan <lizf@cn.fujitsu.com>,
Zhaolei <zhaolei@cn.fujitsu.com>,
KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>,
Alan Stern <stern@rowland.harvard.edu>
Subject: Re: [RFC][PATCH 5/5] perfcounter: Add support for kernel hardware breakpoints
Date: Tue, 28 Jul 2009 16:42:42 +0200 [thread overview]
Message-ID: <1248792162.6987.3013.camel@twins> (raw)
In-Reply-To: <20090728140459.GA30412@Krystal>
On Tue, 2009-07-28 at 10:04 -0400, Mathieu Desnoyers wrote:
> As you see, none of these 2 ways to gather trace data allow statistical
> RR. Therefore, having this feature in the low-level API does not seem to
> make sense for tracing.
I'm not asking for it to be available in the low level API. Quite
contrary, I'm saying that the current API is too high level and pretty
useless for perf counters.
next prev parent reply other threads:[~2009-07-28 14:40 UTC|newest]
Thread overview: 46+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-07-20 17:08 [RFC][PATCH 0/5] hw-breakpoints: Make the API generic + support for perfcounters Frederic Weisbecker
2009-07-20 17:08 ` [RFC][PATCH 1/5] hw-breakpoints: Make kernel breakpoints API truly generic Frederic Weisbecker
2009-07-20 17:27 ` Mathieu Desnoyers
2009-07-25 2:37 ` Frederic Weisbecker
2009-07-25 15:38 ` Mathieu Desnoyers
2009-07-28 1:35 ` Frederic Weisbecker
2009-07-21 11:15 ` K.Prasad
2009-07-25 2:56 ` Frederic Weisbecker
2009-07-20 17:08 ` [RFC][PATCH 2/5] hw-breakpoints: Pull up the target symbol in a generic field Frederic Weisbecker
2009-07-20 17:08 ` [RFC][PATCH 3/5] hw-breakpoints: Make user breakpoints API truly generic Frederic Weisbecker
2009-07-20 17:08 ` [RFC][PATCH 4/5] perfcounter: Grow the event number to 64 bits Frederic Weisbecker
2009-07-20 17:08 ` [RFC][PATCH 5/5] perfcounter: Add support for kernel hardware breakpoints Frederic Weisbecker
2009-07-20 17:38 ` Peter Zijlstra
2009-07-21 7:11 ` Frédéric Weisbecker
2009-07-20 17:38 ` Peter Zijlstra
2009-07-21 7:19 ` Frédéric Weisbecker
2009-07-20 17:38 ` Peter Zijlstra
2009-07-20 21:22 ` Frédéric Weisbecker
2009-07-24 20:20 ` Masami Hiramatsu
2009-07-23 13:08 ` Peter Zijlstra
2009-07-23 17:45 ` Peter Zijlstra
2009-07-23 19:56 ` Alan Stern
2009-07-24 14:02 ` Frédéric Weisbecker
2009-07-24 14:26 ` Peter Zijlstra
2009-07-24 17:47 ` Frederic Weisbecker
2009-07-25 10:56 ` Peter Zijlstra
2009-07-25 14:19 ` Frederic Weisbecker
2009-07-25 15:51 ` Mathieu Desnoyers
2009-07-25 16:27 ` Peter Zijlstra
2009-07-25 16:22 ` Peter Zijlstra
2009-07-25 23:57 ` K.Prasad
2009-07-27 8:53 ` Peter Zijlstra
2009-07-28 1:03 ` Frederic Weisbecker
2009-07-28 7:24 ` Peter Zijlstra
2009-07-28 14:04 ` Mathieu Desnoyers
2009-07-28 14:42 ` Peter Zijlstra [this message]
2009-07-29 0:36 ` Frederic Weisbecker
2009-07-29 8:28 ` Peter Zijlstra
2009-07-29 14:03 ` Frederic Weisbecker
2009-07-28 16:12 ` K.Prasad
2009-07-28 16:41 ` Peter Zijlstra
2009-07-29 6:37 ` K.Prasad
2009-07-29 9:22 ` Peter Zijlstra
2009-07-29 14:57 ` Arnaldo Carvalho de Melo
2009-07-28 0:18 ` Frederic Weisbecker
2009-07-28 7:26 ` Peter Zijlstra
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