Make process title - % complete

[Roman Divacky]

On Tue, Oct 20, 2009 at 02:42:17PM +0200, Ivan Voras wrote:
> Alex Kozlov wrote:
> 
> >Of course ps or top output much more convenient, but if setproctitle so
> >expencive and will be called so often, then SIGINFO may be good
> >compromise. 
> 
> Regarding speed of setproctitle(), here are some microbenchmark results 
> from the attached test source:
> 
> getpid: 3661124.75 iterations/s
> setproctitle: 591357.56 iterations/s
> 
> Meaning, setprocitle() is around 6 times more expensive than getpid(), 
> meaning it can only be pulled off nearly 600,000 calls/s on a 2.3 GHz 
> Core 2 CPU.

what about contention? setproctitle() is an sysctl so it will prevent
other sysctl's from working when being executed..