Messages in this thread | | | From | Seiji Aguchi <> | Date | Wed, 14 Dec 2011 21:23:49 -0500 | Subject | RE: [PATCH 2/2] trace,x86: Add x86 irq vector entry/exit tracepoints |
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Steven,
Thank you for giving me an explanation in detail how stacktrace works. I was confused stacktrace.
>> Rip in local timer interrupt is more accurate information >> for achieving my goal than stacktrace > >Does the above change your mind?
I'm concerned about amount of consumption of ring buffer because I would like to use a background tracer for multiple cases in our costomer's system for solving several issues.
As you know, I'm trying to improve tracepoints of signal events with others. https://lkml.org/lkml/2011/11/30/223
And I'm posting a patch of jbd2 event by myself. https://lkml.org/lkml/2011/11/29/328
How much does stacktrace consume ring buffer, compared to a tracepoint?
Seiji
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