linux-kernel - Re: 2.6.25 new perfmon kernel patch + libpfm + pfmon available

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Date:	Fri, 2 May 2008 18:01:06 +0200
From:	"stephane eranian" <eranian@...glemail.com>
To:	linux-kernel@...r.kernel.org
Cc:	ia64 <linux-ia64@...r.kernel.org>
Subject: Re: 2.6.25 new perfmon kernel patch + libpfm + pfmon available

Hello,


Several people noticed there was a typo in the website url.
The actual web site is:

      http://perfmon2.sf.net


Sorry about that.

On Tue, Apr 29, 2008 at 11:47 PM, stephane eranian
<eranian@...glemail.com> wrote:
>
> Hello,
>
>   I have released the perfmon2 kernel patch for kernel v2.6.25. There is
>   no major features. However, there were a major restructuring of the code
>   to make it more readable, isolate features per module. The header files
>   have also been restructured to separate user vs. kernel, and generic only
>   vs. shared with arch. The restructuring of the interrupt handler yielded
>   a nice 15% latency improvement on single counter sampling runs on X86.
>   This new structure will make it easier to extract features and merge them
>   with the mainline kernel.
>
>   In the time frame of 2.6.26, I will push a few bits and pieces to LKML
>   for final review and integration.
>
>   Here are some of the kernel changes:
>   - Cell updates (Carl Love, Takashi Yamamoto)
>   - new perfmon_debug boot option to enable debug (Robert Richter)
>   - several bugs fixes on Itanium, MIPS and generic hrtimer management
>   - Power locking updates (Corey Ashford)
>
>   There is also a new release for libpfm, now at version 3.4.
>   The changes include:
>   - AMD Phenom (a.k.a. Barcelona) IBS support (Robert Richter)
>   - Python bindings and examples (Arun Sharma)
>   - environment variable support to enable debugging
>   - auto-detection of syscall base number for 2.6.24 and 2.6.25
>   - new multi-threaded self-sampling example (Mark W. Krentel)
>   - man pages cleanups (Steve Kaufmann)
>
>   Special thanks to Arun (Google). The Python bindings are a nice addition
>   to libpfm especially for prototyping and writing testsuites.
>
>   Finally, a new major version of pfmon, now at pfmon-3.4.
>   Among the many changes:
>   - added support for dmalloc (Andrzej Nowak)
>   - updated support for Cell processor (Takashi Yamamoto)
>   - possibility to terminate pfmon cleanly with SIGTERM
>   - --follow-fork and derivatives fixed on Itanium and other platforms
>   - tracking of dlopen now works on mixed ABI environments
>   - lots of bugs fixes
>
>   As usual all files and more detailed changelogs can be downloaded from our
>   website at:
>
>         http://perfmon.sourceforge.net
>
>   Enjoy,
>
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