linux-kernel - Re: [v2] Powerpc/perf: Wire up PMI throttling

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Date:   Mon, 24 Dec 2018 00:27:52 +1100 (AEDT)
From:   Michael Ellerman <patch-notifications@...erman.id.au>
To:     Ravi Bangoria <ravi.bangoria@...ux.ibm.com>,
        linuxppc-dev@...ts.ozlabs.org
Cc:     Ravi Bangoria <ravi.bangoria@...ux.ibm.com>,
        maddy@...ux.vnet.ibm.com, linux-kernel@...r.kernel.org,
        npiggin@...il.com, paulus@...ba.org, ebiederm@...ssion.com,
        muriloo@...ux.ibm.com, leitao@...ian.org,
        naveen.n.rao@...ux.vnet.ibm.com, aneesh.kumar@...ux.vnet.ibm.com
Subject: Re: [v2] Powerpc/perf: Wire up PMI throttling

On Wed, 2018-11-21 at 03:56:37 UTC, Ravi Bangoria wrote:
> Commit 14c63f17b1fde ("perf: Drop sample rate when sampling is too
> slow") introduced a way to throttle PMU interrupts if we're spending
> too much time just processing those. Wire up powerpc PMI handler to
> use this infrastructure.
> 
> We have throttling of the *rate* of interrupts, but this adds
> throttling based on the *time taken* to process the interrupts.
> 
> Signed-off-by: Ravi Bangoria <ravi.bangoria@...ux.ibm.com>

Applied to powerpc next, thanks.

https://git.kernel.org/powerpc/c/0c9108b083706330cd5484d121fbb0

cheers