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List:       freebsd-hackers
Subject:    Re: pmcstat profiles OS code?
From:       Ryan Stone <rysto32 () gmail ! com>
Date:       2015-06-12 17:17:04
Message-ID: CAFMmRNzKz6=pEBUMV_LYC7p_Q7=z2ArBxF-QCQJBEwh30wpAzA () mail ! gmail ! com
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pmcstat -S will collect data for threads running in the kernel, both for
kernel threads like interrupt threads as well as user threads running in
kernel context (e.g performing a system call)
On Jun 12, 2015 7:19 AM, "Sai Prajeeth" <csprajeeth@gmail.com> wrote:

> Hi,
>
> I would like to count hardware events such as instructions retired /
> unhalted-core-cycles for all the systems for BOTH OS and APPLICATION. I am
> aware that pmcstat has a system wide monitoring mode that counts events
> across all the CPUs for all processes. I want to know whether the
> statistics for kernel code are collected as well ? (which I dont think so).
>
> Thanks!
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