Re: Using a new perf tool against an older kernel
From: Arun Sharma <hidden>
Date: 2011-06-24 00:42:38
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On 6/23/11 5:11 PM, Frederic Weisbecker wrote:
I'm confused, you first said it happens with new tools on older kernel. Can you tell us which combination of kernel/user raises the error? and which error.
perf-3.0 + 2.6.38 perf record -agR gives: Can't find id 9's machine Found 1 unknown events! perf-3.0 + 2.6.32 perf record -ag perf script samples have bogus timestamps perf-3.0 + 2.6.32 perf record -agR perf script error: Samples do not contain timestamps perf-3.0 + any kernel perf record -agT perf script is happy everywhere. Thanks! -Arun