Re: [PATCH] perf, tools: Stop perf stat -p when profiled processexits v2

From: David Ahern
Date: Wed Sep 12 2012 - 10:54:15 EST

On 9/12/12 8:40 AM, Andi Kleen wrote:
- while(!done) sleep(1);
+ char piddir[40];
+ if ( && access("/proc", X_OK) == 0)
+ snprintf(piddir, sizeof piddir, "/proc/%d", atoi(;

else path has piddir not set. Also as Namyhung pointed out can have multiple pids in it, so this fails if a user specified -p pid1,pid2 -- it will only check if the first process died.

Perhaps a more generic perf_target__is_alive function is needed that can check if the given tid(s) or pid(s) have terminated.

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