Performance Counter Tools?

[Sepherosa Ziehau]

On Fri, Apr 24, 2015 at 2:32 AM, Alex Merritt <merritt.alex at gmail.com> wrote:
> Hello,
>
> Can anyone point me to tools that run on DragonFly which access CPU
> performance counters? Tools like likwid run only on Linux, requiring the
> "msr" kernel module (arch/x86/kernel/msr.c), or others use some
> Linux-specific APIs, such as perf_events (the Perf tool).
>
> If there are none, what would be required to support one of the common
> tools? Could we port the MSR API from Linux (even as a hack, initially)?

We have cpuctl module, which could used by userland to access MSRs.

Best Regards,
sephe

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