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Re: [RFC 0/2] apic: tracing IPI events

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From: Andi Kleen
Subject: Re: [RFC 0/2] apic: tracing IPI events
Date: Friday, August 6, 2010 - 4:26 am

Jiri Olsa <jolsa@redhat.com> writes:

You forgot to state why you want it?

In generall the only case that should happen anytime commonly is mask,
the others only for obscure uncommon paths.

However there is already accounting for it in /proc/interrupts
that can be easily sampled. Does adding additional tracing really give 
any value?

-Andi
-- 
ak@linux.intel.com -- Speaking for myself only.
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Messages in current thread:
[RFC 0/2] apic: tracing IPI events, Jiri Olsa, (Thu Aug 5, 4:09 am)
[PATCH 1/2] apic: adding apic_send_IPI_* methods for apic' ..., Jiri Olsa, (Thu Aug 5, 4:09 am)
[PATCH 2/2] apic,trace: IPI sent trace event., Jiri Olsa, (Thu Aug 5, 4:09 am)
Re: [RFC 0/2] apic: tracing IPI events, Andi Kleen, (Fri Aug 6, 4:26 am)
Re: [RFC 0/2] apic: tracing IPI events, Jiri Olsa, (Fri Aug 6, 4:46 am)