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From Egor Pasko <egor.pa...@gmail.com>
Subject Re: [drlvm][iprof] Using Profiling Utility ("iprof")
Date Tue, 09 Jan 2007 08:19:36 GMT
On the 0x24C day of Apache Harmony Geir Magnusson, Jr. wrote:
> On Dec 27, 2006, at 2:52 AM, Egor Pasko wrote:
> 
> > On the 0x214 day of Apache Harmony Geir Magnusson, Jr. wrote:
> >> Is this tuff documented?  Wanna throw it in the wiki or a patch for
> >> the site?
> >
> > (...raising the thread from the ashes...)
> > BTW, recently Nikolay Sidelnikov wrote the draft version of the doc as
> > a standalone page. Interested parties can look into HARMONY-2865
> >
> > Armand, you may find it extremely useful :)
> >
> > Nadya, Sveta, could you, please, look into the doc?..
> 
> Nice - it would nice also if Nikolay had the time, to augment that
> with an example output of the .stat file, so people using this for
> the first time can feel comfortable that they got the right thing,
> and maybe some notes on how to read the .stat file.

FYI: Nikolay has updated HARMONY-2865 with a sample .stat file.

Nadya, how can I help to put the doc on the website?

> geir
> 
> >
> >> Egor Pasko wrote:
> >>> On the 0x214 day of Apache Harmony Mikhail Fursov wrote:
> >>>> + Some usage hints:
> >>>> 1. You can get any stylesheet editor (like Excel), open iprof
> >>>> data and build
> >>>> graphs from the  colums - and you will have very useful pictures.
> >>> gnuplot :)
> >>>
> >>>> 2. The disadvantage of iprof is that it counts blocks, insts and
> >>>> helpers
> >>>> calls and does not count time spent in helpers and blocks. You
> >>>> still need
> >>>> VTune to get this info.
> >>> 1 more disadvantage: counters are not synchronized resulting in
> >>> somewhat inaccurate data for multithreaded apps
> >>>
> >>
> >
> > -- 
> > Egor Pasko
> >
> 
> 

-- 
Egor Pasko


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