From owner-freebsd-hackers Thu Mar 7 9:37:13 2002 Delivered-To: freebsd-hackers@freebsd.org Received: from patrocles.silby.com (d133.as21.nwbl0.wi.voyager.net [169.207.139.199]) by hub.freebsd.org (Postfix) with ESMTP id 9A73D37B417 for ; Thu, 7 Mar 2002 09:37:08 -0800 (PST) Received: from patrocles.silby.com (localhost [127.0.0.1]) by patrocles.silby.com (8.12.2/8.12.2) with ESMTP id g27BfcNu002847; Thu, 7 Mar 2002 11:41:38 GMT (envelope-from silby@silby.com) Received: from localhost (silby@localhost) by patrocles.silby.com (8.12.2/8.12.2/Submit) with ESMTP id g27BfSx3002844; Thu, 7 Mar 2002 11:41:28 GMT X-Authentication-Warning: patrocles.silby.com: silby owned process doing -bs Date: Thu, 7 Mar 2002 11:41:28 +0000 (GMT) From: Mike Silbersack To: cjp Cc: mitko@rila.bg, Subject: Re: Swapping performance In-Reply-To: <05fe01c1c5e6$6a02e890$2400010a@eight> Message-ID: <20020307113735.M2778-100000@patrocles.silby.com> MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-freebsd-hackers@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.ORG On Thu, 7 Mar 2002, cjp wrote: > In order to handle the kruft that occurs, there is the out of memory killer, > oom_killer. > Which merrily goes through the list of processes, killing off the low priority > processes > until enough memory is free to satisfy what was most recently used. It's the > loan shark > repayment program, with OOMKiller performing the function of the deliquency > reminder. FreeBSD overcommits and has a OOMKiller too. You just haven't noticed it because it's not triggered until you're out of swap space. The one thing that _does_ strike me as odd in this comparison is that Dimitar is using 2.4.17. If that's 2.4.17, I'm surprised that it's working ok, as everyone on the linux-kernel list seems to be applying either the -AA or -rmap patches. Of course, if that's SUSE's 2.4.17, I assume that the -AA patches are already applied. In any case, we can't make any useful comparisons until Dimitar posts the source to his test program. Dimitar, post the source for the test program! Mike "Silby" Silbersack To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message