linux-kernel - Re: [PATCH 37/37] perf intel-pt: Improve sample timestamp

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Message-ID: <2414cc29-c5fa-3283-f5d6-853979979c2d@intel.com>
Date:   Fri, 26 May 2017 11:26:03 +0300
From:   Adrian Hunter <adrian.hunter@...el.com>
To:     Andi Kleen <ak@...ux.intel.com>
Cc:     Arnaldo Carvalho de Melo <acme@...nel.org>,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH 37/37] perf intel-pt: Improve sample timestamp

On 19/05/17 17:34, Andi Kleen wrote:
> On Fri, May 19, 2017 at 11:54:36AM +0300, Adrian Hunter wrote:
>> The decoder uses its current timestamp in samples. Usually that is a
>> timestamp that has already passed, but in some cases it is a timestamp for
>> a branch that the decoder is walking towards, and consequently hasn't
>> reached. Improve that situation by using the pkt_state to determine when
>> to use the current or previous timestamp.
> 
> Thanks. I ran into this problem a lot.
> 
> Would be good to mark the clear bug fixes like this with cc stable.

I have done that in V2.