Re: [announce] Performance Counters for Linux, v6

From: Randy Dunlap
Date: Wed Jan 21 2009 - 14:36:36 EST


Ingo Molnar wrote:
> We are pleased to announce version 6 of our performance counters subsystem
> implementation. The shortlog, diffstat and the combo patch can be found
> below. The combo patch against latest -git (2.6.29-rc2) can be also found
> at:
>
> http://people.redhat.com/mingo/perfcounters/perfcounters-v6-v2.6.29-rc2.patch
>
> It's also available in tip/master at:
>
> http://people.redhat.com/mingo/tip.git/README
>
> There are many changes in the v6 release:
>
> - PowerPC performance counters support from Paul Mackerras, for POWER6
> and for the PPC970 family.
>
> - ioctl API to disable/enable individual counters and groups without
> closing their fd. This can be useful for libraries, ad-hoc
> instrumentation and PAPI support.
>
> - 'pinned' and 'exclusive' counter attributes - for those
> applications that want to influence counter scheduling explicitly.
>
> - The 'perfstat' utility (ex 'timec') has been updated:
>
> http://people.redhat.com/mingo/perfcounters/perfstat.c
>
> - 'kerneltop' (easy-to-use text mode NMI profiler) has been updated:
>
> http://people.redhat.com/mingo/perfcounters/kerneltop.c

BTW, this kerneltop has nothing to do with that other one??

http://www.xenotime.net/linux/kerneltop/


Thanks,
--
~Randy
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