[RFC] Scheduler recorder and playback

Pantelis Antoniou panto at antoniou-consulting.com
Fri Apr 13 13:44:40 UTC 2012


Hi Dmitry,

Yes, I know, the non-portability of perf.data is a big issue, and one
of the design goals of spr-replay.

The generated program by spr-replay is perfectly portable, but
due to the way perf data format is, they are not. We can't do anything
about perf.data, but the spr-replay program should be trivially portable.

I'll switch on the mainline kernel tag and retry.

Regards

-- Pantelis
 

On Apr 13, 2012, at 9:27 AM, Dmitry Antipov wrote:

> On 04/12/2012 04:51 PM, Pantelis Antoniou wrote:
> 
>> The data file is not readable by me version of perf.
> 
> Oops. This should be investigated. We definitely wants the perf
> data to be portable (or, at least, portable with some limitations
> between different hardware of the same major architecture).
> 
> Could you give me an example of your perf.data?
> 
>> Can you point to the pandaboard kernel that you use?
> 
> The kernel is 3.4.0-rc2+ (git 258f742635360175564e9470eb060ff4d4b984e7) cloned
> from Linus' tree.
> 
> Dmitry




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