syscalls per process ?

[Matt Burke]

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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