Date: Tue, 26 Mar 2013 10:34:10 +0000 From: Matt Burke <mattblists@icritical.com> To: Paul Koch <paul.koch137@gmail.com> Cc: hackers@freebsd.org Subject: Re: syscalls per process ? Message-ID: <515179A2.2090904@icritical.com> In-Reply-To: <20130326115802.15ce1626@speedy> References: <20130326115802.15ce1626@speedy>
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On 03/26/13 01:58, Paul Koch wrote:
> We don't want to run an external program (eg. truss/dtrace) on each
> program.
Not exactly what you want, but a single DTrace instance can collect data
globally, not just while attached to a specific target:
# dtrace -qn 'syscall:::entry{@x[execname,probefunc]=count()}
tick-1s{trunc(@x,20); printa(@x); exit(1)}'
chrome poll 557
Xorg writev 685
chrome read 690
wine write 700
nvidia-settings read 702
Xorg select 724
conky poll 853
wineserver freebsd32_gettimeofday 1001
wineserver write 1071
wineserver read 1136
wineserver freebsd32_kevent 1163
conky read 1308
chrome gettimeofday 1316
Xorg read 1431
Xorg setitimer 1448
chrome clock_gettime 1685
wine sigprocmask 1810
wine freebsd32_gettimeofday 1872
wine read 2393
Xorg clock_gettime 31594
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