Using "-c" and CTRL+C

[Dmitry V. Levin]

On Fri, May 09, 2014 at 12:42:02PM +0200, Bud Millwood wrote:
> I think I've located my problem - it's a question of choosing the right
> pid. I'm debugging a multi-threaded application, and "ps" doesn't show the
> pid for each thread, whereas htop does. Choosing the pid of a specific
> thread causes strace to give me the statistics I'm looking for.
> 
> So it seems that if I run "strace -c" on a pid that is blocked in a system
> call, it doesn't print statistics at all. It's a little misleading; maybe
> it should print out statistics, and just show that 100% of the time it was
> in that call. Or maybe it can't detect the current call if strace was
> started after the call was made?

strace -c prints statistics for exited syscalls.
If no syscall exited (for the given personality), no statistics is printed.


-- 
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