Date: Thu, 13 Jan 2011 09:12:04 -0800 From: Steve Kargl <sgk@troutmask.apl.washington.edu> To: freebsd-current@freebsd.org Subject: Profiling code execution on amd64? Message-ID: <20110113171139.GA32250@troutmask.apl.washington.edu>
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How does one profile one's code on freebsd-amd64?
It seems that gprof is broken.
troutmask:kargl[234] time ../penetration
CPU time: 7.327 min
Start time: 2011-01-13 08:59:18.419
Stop time: 2011-01-13 09:06:39.082
CPU time: 7.34 min
440.68 real 440.25 user 0.11 sys
troutmask:kargl[235] gprof -b -l ../penetration penetration.gmon | more
granularity: each sample hit covers 4 byte(s) for 0.00% of 25.46 seconds
% cumulative self self total
time seconds seconds calls ms/call ms/call name
96.2 24.48 24.48 282440 0.09 0.09 __mempoolm_MOD_memadd [4]
1.4 24.84 0.35 0 100.00% _mcount [5]
0.7 25.03 0.19 1 188.65 188.82 __srfm_MOD_rms [6]
0.5 25.14 0.12 608847 0.00 0.00 memcpy [11]
I cannot reconcile how 440.25 seconds is the same a 25.46.
Should src/usr.bin/gprof be disconnected from the build?
--
Steve
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