Messages in this thread | | | Subject | Re: [PATCH 9/16] 2.6.17-rc6 perfmon2 patch for review: kernel-level API support (kapi) | From | (Frank Ch. Eigler) | Date | 16 Jun 2006 11:41:32 -0400 |
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Stephane Eranian <eranian@hpl.hp.com> writes:
> > > This patch contains the kernel-level API support. > > NACK. No one should call this from kernel space. > > Well, that's what I initially thought too but there is a need from > the SystemTap people and given the way they set things up, it is > hard to do it from user level. [...]
Whether one uses systemtap, raw kprobes, or some specialized tracing/stats-collecting patch surely forthcoming, kernel-level APIs would be needed to perform fine-grained kernel-scope measurements using these counters.
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