Re: [announce] Performance Counters for Linux, v6

From: Randy Dunlap
Date: Wed Jan 21 2009 - 16:16:45 EST


Ingo Molnar wrote:
> * Randy Dunlap <randy.dunlap@xxxxxxxxxx> wrote:
>
>> 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/
>
> heh, didnt know about that one - there's no connection other than the name
> :-) The project seems somewhat stale but indeed similar in purpose. Can
> rename to kerneltop2 i guess.

Yes, it's stale. I plan to update it sometime this year. :)

I don't care if you rename it or not.

--
~Randy
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