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

To: "Santos, Jose Renato G" <joserenato.santos@xxxxxx>
Subject: Re: [Xen-devel] [PATCH] Xenoprof patches for xen-unstable
From: Andrew Theurer <habanero@xxxxxxxxxx>
Date: Tue, 31 May 2005 11:08:09 -0500
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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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