Date: Thu, 13 Mar 2003 22:46:14 -0800 From: David Schultz <das@FreeBSD.org> To: Alfred Perlstein <bright@mu.org> Cc: Mike Silbersack <silby@silby.com>, src-committers@FreeBSD.org, cvs-src@FreeBSD.org, cvs-all@FreeBSD.org Subject: Re: cvs commit: src/sys/vm vm_map.c vm_map.h vm_pageout.c Message-ID: <20030314064614.GA20500@HAL9000.homeunix.com> In-Reply-To: <20030313224223.GP4145@elvis.mu.org> References: <200303122313.h2CNDHMU046431@repoman.freebsd.org> <20030312175458.J32334@odysseus.silby.com> <20030313005115.GA11794@HAL9000.homeunix.com> <20030313154226.X682@odysseus.silby.com> <20030313224223.GP4145@elvis.mu.org>
next in thread | previous in thread | raw e-mail | index | archive | help
Thus spake Alfred Perlstein <bright@mu.org>: > * Mike Silbersack <silby@silby.com> [030313 13:49] wrote: > > > > On Wed, 12 Mar 2003, David Schultz wrote: > > > > > With KSE, all of the threads in the process are made runnable. I > > > assume this is to get them to all exit the kernel as fast as > > > possible so the process can die, although there may be a better > > > solution. Still, it shouldn't be a big problem. > > > > Well, back when I was running tests, I found that if you had 1000s of > > processes running, the kill signal could take so long to get delivered and > > acted upon that the same process might have to be killed by the pageout > > daemon 3-4 times before it actually died. > > Shooting from the hip here, but why not just forcefully toss away the > process's vmspace or a subset of it? Basically have the pageout > deamon deallocate the "to be killed" process's address space? Sharing would just make that a pain. You're not even guaranteed to get anything out of cannibalizing the address space if it's shared. I think I'll wait until someone presents conclusive evidence that the requirement that processes be swapped in before they are killed is really an issue in practice. To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe cvs-all" in the body of the message
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?20030314064614.GA20500>