RE: [Xen-devel] [PATCH] Xenoprof patches for xen-unstable

["Santos, Jose Renato G" <joserenato.santos@xxxxxx>]

  Andrew

  This is weird. Something seems wrong. 
  I am not familiar with the benchmark you are
  running. Is this something easy to try?
  If you could send me the code and some instructions on
  how to use it, I can try running the same benchmark
  in my environment.
  I will also spend sometime looking more carefully
  at xenoprof and my tests to see if I find anything wrong

  Renato
 
>> -----Original Message-----
>> From: Andrew Theurer [mailto:habanero@xxxxxxxxxx] 
>> Sent: Tuesday, May 31, 2005 9:08 AM
>> To: Santos, Jose Renato G
>> Cc: Xen-devel@xxxxxxxxxxxxxxxxxxx
>> Subject: Re: [Xen-devel] [PATCH] Xenoprof patches for xen-unstable
>> 
>> 
>> On Wednesday 25 May 2005 14:10, Santos, Jose Renato G wrote:
>> >   hi,
>> >
>> >   I have attached patches for enabling system wide profiling
>> >   using oprofile for xen unstable.
>> >   The patches were generated against change-set 1.1507 (May 22).
>> >   The 4 attached files are
>> >
>> >   1) xenoprof.txt:
>> >     - xenoprof overview and user guide
>> >   2) xenoprof-1.1-xen-3.0-devel.patch:
>> >        - patch for xen
>> >   3) xenoprof-1.1-linux-2.6.11:
>> >        - patch for linux. Note that this needs to be applied
>> >          twice, once to linux-2.6.11-xen0 and once to
>> >          linux-2.6.11-xenU. (This is different than the last
>> >          patch which was created against the linux sparse tree).
>> >   4) xenoprof-1.1-oprofile-0.8.2:
>> >        - patch for oprofile version 0.8.2
>> 
>> Thanks very much for these; this is going to be extremly 
>> helpful.  I am 
>> using these on xen-unstable-bk-1.1518 currently.  One 
>> problem: so far I 
>> have not observed any ticks in xen-syms.  I have tried SDET 
>> benchmark, 
>> which on your previous patches (for xen-2.0-testing), I 
>> would get about 
>> 12% of ticks in xen-syms.
>> 
>> This is on a single cpu xen0 domain with no other domains 
>> running.  I 
>> verified that the XENIMAGE and XEN_RANGE were getting passed to 
>> oprofiled correctly.  I do not specify any active or passive domains 
>> since this is the only domain running.  Any ideas why I 
>> would not get 
>> any ticks for xen-syms?
>> 
>> Has anyone else tried xenoprofile?
>> 
>> Thanks,
>> 
>> -Andrew
>> 

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