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From "Sidelnikov, Nikolay A" <nikolay.a.sidelni...@intel.com>
Subject RE: [drlvm][iprof] Using Profiling Utility ("iprof")
Date Wed, 01 Nov 2006 12:12:01 GMT
I'm going to prepare documentation for iprof for a couple of days

Nikolay A. Sidelnikov,
SSG/MRTD/DRL/DRL JIT software engineer,
Intel Corporation, Novosibirsk
e-mail: nikolay.a.sidelnikov@intel.com
phone: +7 383 3340950 ext. 2173
 
 

>-----Original Message-----
>From: Geir Magnusson Jr. [mailto:geir@pobox.com]
>Sent: Wednesday, November 01, 2006 5:29 PM
>To: harmony-dev@incubator.apache.org
>Subject: Re: [drlvm][iprof] Using Profiling Utility ("iprof")
>
>Is this tuff documented?  Wanna throw it in the wiki or a patch for the
>site?
>
>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
>>

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