From owner-freebsd-hackers Mon Jun 24 15:44:22 2002 Delivered-To: freebsd-hackers@freebsd.org Received: from patrocles.silby.com (d127.as20.nwbl0.wi.voyager.net [169.207.139.129]) by hub.freebsd.org (Postfix) with ESMTP id 9E80737B400 for ; Mon, 24 Jun 2002 15:44:13 -0700 (PDT) Received: from patrocles.silby.com (localhost [127.0.0.1]) by patrocles.silby.com (8.12.4/8.12.4) with ESMTP id g5OMkRcv054724; Mon, 24 Jun 2002 17:46:27 -0500 (CDT) (envelope-from silby@silby.com) Received: from localhost (silby@localhost) by patrocles.silby.com (8.12.4/8.12.4/Submit) with ESMTP id g5OMkOVR054721; Mon, 24 Jun 2002 17:46:25 -0500 (CDT) X-Authentication-Warning: patrocles.silby.com: silby owned process doing -bs Date: Mon, 24 Jun 2002 17:46:23 -0500 (CDT) From: Mike Silbersack To: Patrick Thomas Cc: freebsd-hackers@freebsd.org Subject: Re: tunings for many httpds... In-Reply-To: <20020624151650.I68572-100000@utility.clubscholarship.com> Message-ID: <20020624174404.P54460-100000@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 Mon, 24 Jun 2002, Patrick Thomas wrote: > Two things about this interested me: > > a) watching `top` output anytime of the day, i see several httpd processes > in "sbwait" - granted I can only see 40 lines of processes or so in `top`, > but usually at least two show "sbwait". Worrisome ? sbwait is _NOT_ necessarily a bad thing. A httpd sending data to someone on a modem will show this most of the time, as it is waiting for ACKs coming back from the other end. mclalloc is the state you should be worried about seeing: it does mean that you have run out of mbufs. > Is it possible that within 30 seconds or so current mbufs would skyrocket > and my percentage of mb_map in use would skyrocket and I would start to > see requests for memory denied ? > > All comments appreciated. > > --PT I doubt it. The problem probably lies elsewhere. Mike "Silby" Silbersack To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message