2009/10/20 Roman Divacky <rdiva...@freebsd.org>: > 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..
Others sysctls... for that particular process (since it modifies process-global data) which happens to be single-threaded :P _______________________________________________ freebsd-hackers@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-hackers To unsubscribe, send any mail to "freebsd-hackers-unsubscr...@freebsd.org"
