From: Christoph Hellwig <hch@infradead.org>
To: Eric B Munson <ebmunson@us.ibm.com>
Cc: Peter Zijlstra <peterz@infradead.org>,
Eric B Munson <emunson@mgebm.net>,
akpm@linux-foundation.org, mingo@redhat.com,
hugh.dickins@tiscali.co.uk, riel@redhat.com,
linux-kernel@vger.kernel.org, linux-mm@kvack.org,
anton@samba.org
Subject: Re: [PATCH] Add trace event for munmap
Date: Thu, 8 Jul 2010 13:35:15 -0400 [thread overview]
Message-ID: <20100708173515.GA11652@infradead.org> (raw)
In-Reply-To: <20100708144407.GA8141@us.ibm.com>
On Thu, Jul 08, 2010 at 03:44:07PM +0100, Eric B Munson wrote:
> On Thu, 08 Jul 2010, Peter Zijlstra wrote:
>
> > On Thu, 2010-07-08 at 15:05 +0100, Eric B Munson wrote:
> > > This patch adds a trace event for munmap which will record the starting
> > > address of the unmapped area and the length of the umapped area. This
> > > event will be used for modeling memory usage.
> >
> > Does it make sense to couple this with a mmap()/mremap()/brk()
> > tracepoint?
> >
>
> We were using the mmap information collected by perf, but I think
> those might also be useful so I will send a followup patch to add
> them.
What kind of infrastructure is perf using for recording
mmap()/mremap()/brk() information?
WARNING: multiple messages have this Message-ID (diff)
From: Christoph Hellwig <hch@infradead.org>
To: Eric B Munson <ebmunson@us.ibm.com>
Cc: Peter Zijlstra <peterz@infradead.org>,
Eric B Munson <emunson@mgebm.net>,
akpm@linux-foundation.org, mingo@redhat.com,
hugh.dickins@tiscali.co.uk, riel@redhat.com,
linux-kernel@vger.kernel.org, linux-mm@kvack.org,
anton@samba.org
Subject: Re: [PATCH] Add trace event for munmap
Date: Thu, 8 Jul 2010 13:35:15 -0400 [thread overview]
Message-ID: <20100708173515.GA11652@infradead.org> (raw)
In-Reply-To: <20100708144407.GA8141@us.ibm.com>
On Thu, Jul 08, 2010 at 03:44:07PM +0100, Eric B Munson wrote:
> On Thu, 08 Jul 2010, Peter Zijlstra wrote:
>
> > On Thu, 2010-07-08 at 15:05 +0100, Eric B Munson wrote:
> > > This patch adds a trace event for munmap which will record the starting
> > > address of the unmapped area and the length of the umapped area. This
> > > event will be used for modeling memory usage.
> >
> > Does it make sense to couple this with a mmap()/mremap()/brk()
> > tracepoint?
> >
>
> We were using the mmap information collected by perf, but I think
> those might also be useful so I will send a followup patch to add
> them.
What kind of infrastructure is perf using for recording
mmap()/mremap()/brk() information?
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next prev parent reply other threads:[~2010-07-08 17:35 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-07-08 14:05 [PATCH] Add trace event for munmap Eric B Munson
2010-07-08 14:05 ` Eric B Munson
2010-07-08 14:15 ` Rik van Riel
2010-07-08 14:15 ` Rik van Riel
2010-07-08 14:22 ` Peter Zijlstra
2010-07-08 14:22 ` Peter Zijlstra
2010-07-08 14:44 ` Eric B Munson
2010-07-08 17:35 ` Christoph Hellwig [this message]
2010-07-08 17:35 ` Christoph Hellwig
2010-07-08 17:48 ` Peter Zijlstra
2010-07-08 17:48 ` Peter Zijlstra
2010-07-08 17:51 ` Christoph Hellwig
2010-07-08 17:51 ` Christoph Hellwig
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