Date: Thu, 13 Jan 2011 22:08:30 -0500 From: Ryan Stone <rysto32@gmail.com> To: Steve Kargl <sgk@troutmask.apl.washington.edu> Cc: freebsd-current@freebsd.org Subject: Re: Profiling code execution on amd64? Message-ID: <AANLkTi=C4L9fn7q8PfJgY=8c24BQnZTC9s7BubsrUYxv@mail.gmail.com> In-Reply-To: <20110113171139.GA32250@troutmask.apl.washington.edu> References: <20110113171139.GA32250@troutmask.apl.washington.edu>
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I would suggest using hwpmc for profiling: # kldload hwpmc # pmcstat -S unhalted-cycles -O /tmp/samples.out ../penetration # pmcstat -R /tmp/samples.out -G /tmp/penetration.txt You can also get pmcstat to generate gprof-compatible output with -g, but I never use the mode so I'm really not sure what it gives you. I think that you have to run gprof on the output or something, but don't hold me to that.
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