linux-kernel - Re: [PATCH V2 0/2] measure SMI cost (user)

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Message-ID: <20170529125239.sxd7dp4gyjjtws5z@hirez.programming.kicks-ass.net>
Date:   Mon, 29 May 2017 14:52:39 +0200
From:   Peter Zijlstra <peterz@...radead.org>
To:     Jiri Olsa <jolsa@...hat.com>
Cc:     kan.liang@...el.com, acme@...nel.org, tglx@...utronix.de,
        mingo@...hat.com, linux-kernel@...r.kernel.org, eranian@...gle.com,
        jolsa@...nel.org, elliott@....com, ak@...ux.intel.com
Subject: Re: [PATCH V2 0/2] measure SMI cost (user)

On Mon, May 29, 2017 at 02:46:37PM +0200, Jiri Olsa wrote:

> for some reason I can't get single SMI count generated,
> is there a setup/bench that would provoke that?

Not having SMIs is a good thing ;-)

Not sure we can tickle them in a reliable way.