Date: Tue, 20 Oct 2009 16:33:43 +0300 From: Alex Kozlov <spam@rm-rf.kiev.ua> To: Ivan Voras <ivoras@freebsd.org>, freebsd-hackers@freebsd.org, spam@rm-rf.kiev.ua Subject: Re: Make process title - % complete Message-ID: <20091020133343.GA53941@ravenloft.kiev.ua>
next in thread | raw e-mail | index | archive | help
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. > > I really want to be enlightened about how it could affect wallclock time > in make(1). make universe few times with and without patch? -- Adios
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?20091020133343.GA53941>