From mboxrd@z Thu Jan  1 00:00:00 1970
From: walimis <walimisdev@gmail.com>
Subject: how to get event sample data on vdso section?
Date: Fri, 14 Oct 2011 11:26:29 +0800
Message-ID: <20111014032629.GA12896@walimis-desktop>
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Cc: acme@ghostprotocols.net, mingo@elte.hu

hi,

I want to use perf to profile how many events are emitted on vdso section?
I followed the document Documentation/trace/tracepoint-analysis.txt to do that:

  $ perf record  -e cycles  -f ./hackbench 10 
  $ perf report

But I can't see any events emitted on vdso section. I used 2.6.34 
kernel and x86_32 host.

What's wrong with that? Could anyone give me some clues how to get 
events data on vdso section? 

Thanks a lot!
walimis