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From: Maynard Johnson <maynardj@us.ibm.com>
To: Robert Richter <robert.richter@amd.com>
Cc: Ingo Molnar <mingo@elte.hu>, LKML <linux-kernel@vger.kernel.org>,
	oprofile-list <oprofile-list@lists.sourceforge.net>
Subject: Re: [PATCH 0/9] oprofile: implement support of samples with variable data size
Date: Wed, 14 Jan 2009 15:53:14 -0600	[thread overview]
Message-ID: <496E5ECA.6030306@us.ibm.com> (raw)
In-Reply-To: <1231368325-19246-1-git-send-email-robert.richter@amd.com>

Robert Richter wrote:
> This patch series implements support of samples with variable data
> size. Current implementation has a fixed sample size of 2 unsigned
> longs. This makes it hard to implement use cases with a different
> sample size (AMD IBS or power pc cell) since buffer locking is
> required or samples my become incomplete. The internal cpu buffer
> usage has been changed now and allows the attachment of data with
> varable length to samples.
> 
> There are patches that also change the current ibs implementation. In
> the end the ibs implentation could be removed from the general
> oprofile code to model specific code. An API is available that
> provides generic functions to use variable sample sizes.
> 
> The patches are also available here:
> 
>  git://git.kernel.org/pub/scm/linux/kernel/git/rric/oprofile.git oprofile-for-tip
This patch set looks fine.  Nice work!  I still need to test on a couple of platforms, though.  Feel free to bug me if I don't get back to you with results within a week or so.

-Maynard
> 
> -Robert
> 
> 
> 
> 
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> _______________________________________________
> oprofile-list mailing list
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> https://lists.sourceforge.net/lists/listinfo/oprofile-list


      parent reply	other threads:[~2009-01-14 21:53 UTC|newest]

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2009-01-07 22:45 Robert Richter
2009-01-07 22:45 ` [PATCH 1/9] oprofile: add op_cpu_buffer_write_reserve() Robert Richter
2009-01-07 22:45 ` [PATCH 2/9] oprofile: modify op_cpu_buffer_read_entry() Robert Richter
2009-01-07 22:45 ` [PATCH 3/9] oprofile: rework implementation of cpu buffer events Robert Richter
2009-01-07 22:45 ` [PATCH 4/9] oprofile: add op_cpu_buffer_add_data() Robert Richter
2009-01-07 22:45 ` [PATCH 5/9] oprofile: add op_cpu_buffer_get_data() Robert Richter
2009-01-07 22:45 ` [PATCH 6/9] oprofile: use new data sample format for ibs Robert Richter
2009-01-07 22:45 ` [PATCH 7/9] ring_buffer: fix ring_buffer_event_length() Robert Richter
2009-01-07 22:45 ` [PATCH 8/9] oprofile: remove #ifdef CONFIG_OPROFILE_IBS in non-ibs code Robert Richter
2009-01-07 22:45 ` [PATCH 9/9] oprofile: make new cpu buffer functions part of the api Robert Richter
2009-01-14 21:53 ` Maynard Johnson [this message]

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