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

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Date:   Mon, 29 May 2017 15:16:42 +0200
From:   Jiri Olsa <jolsa@...hat.com>
To:     Peter Zijlstra <peterz@...radead.org>
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 02:52:39PM +0200, Peter Zijlstra wrote:
> 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.

yea I saw some counts last time, now just zero
so I was wondering if it's working

jirka