From: walimis <walimisdev@gmail.com>
To: linux-perf-users@vger.kernel.org
Cc: acme@ghostprotocols.net, mingo@elte.hu
Subject: how to get event sample data on vdso section?
Date: Fri, 14 Oct 2011 11:26:29 +0800 [thread overview]
Message-ID: <20111014032629.GA12896@walimis-desktop> (raw)
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
reply other threads:[~2011-10-14 3:45 UTC|newest]
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