Re: fork performance

Thor Lancelot Simon <[email protected]> Wed, 17 Oct 2012 23:47:22 -0400

Newsgroups	gmane.os.netbsd.devel.performance
Message-ID	<[email protected]>

On Thu, Oct 18, 2012 at 12:52:47PM +1300, Lloyd Parkes wrote:
> So, with a slightly closer look, a guess and some tests to verify my guess, and I think I have found my performance problem converting the NetBSD CVS repositories to Mercurial.
> 
> The CVS server forks once for each command it receives, and it receives a lot of commands. NetBSD fork(2) seems to be much slower than OS X fork(2). Since the cvs server never execs anything, vfork isn't an option. I have implemented a program that can do the CVS log extraction efficiently and correctly (i.e. without forking), but extracting the versioned data itself isn't trivial. 

Why don't you run cvs locally?

Thor