From owner-freebsd-hackers Tue Aug 21 13:55:16 2001 Delivered-To: freebsd-hackers@freebsd.org Received: from algol.vtrip-ltd.com (algol.vtrip-ltd.com [139.91.200.19]) by hub.freebsd.org (Postfix) with ESMTP id CC91B37B403 for ; Tue, 21 Aug 2001 13:55:12 -0700 (PDT) (envelope-from verigak@vtrip-ltd.com) Received: from verigak (helo=localhost) by algol.vtrip-ltd.com with local-esmtp (Exim 3.12 #1 (Debian)) id 15ZIVU-0007G4-00; Tue, 21 Aug 2001 23:52:16 +0300 Date: Tue, 21 Aug 2001 23:52:16 +0300 (EEST) From: Giorgos Verigakis To: Mike Silbersack Cc: Subject: Re: Zope's performance issues In-Reply-To: Message-ID: 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 Tue, 21 Aug 2001, Mike Silbersack wrote: > > On Tue, 21 Aug 2001, Mike Silbersack wrote: > > > On Tue, 21 Aug 2001, Giorgos Verigakis wrote: > > > > The current scheme causes problems with TIME_WAIT recycling, which may > > cause long delays in establishing new connections if you're connection to > > the same host rapidly enough to cause TIME_WAIT recycling to be an issue. > > This is why there's a huge spike only when you get to 1000 hits/second. > > > > There could be other reasons, of course, but this will overshadow the > > others. I tested your test program with apache, and the change is > > noticeable. So, hold off on further testing until later this week. > > > > Mike "Silby" Silbersack > > There's a second problem with your program too: It causes TIME_WAITs to > pile up on the client side, which is not a well-handled situation for us. > Use apachebench for future testing, it will automatically generate the > stats you are looking for. Yes tou are right on that, it was that on my system (the client) the connections were closing after a few seconds and I hadn't noticed it. > > Mike "Silby" Silbersack > > > To Unsubscribe: send mail to majordomo@FreeBSD.org > with "unsubscribe freebsd-hackers" in the body of the message > To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message