Messages in this thread | | | Date | Tue, 24 Oct 2006 16:44:15 -0400 | From | Phillip Susi <> | Subject | Re: [Patch 0/5] I/O statistics through request queues |
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Martin Peschke wrote: > Well, the instrumentation "on demand" aspect is half of the truth. > A probe inserted through kprobes impacts performance more than static > instrumentation.
True, but given that there are going to be a number of things you might want to instrument at some point, and that at any given time you might only be interested in a few of those, it likely will be better overall to spend some more time only on the few than less time on the many.
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