From owner-freebsd-hackers Tue Aug 21 13:41:19 2001 Delivered-To: freebsd-hackers@freebsd.org Received: from niwun.pair.com (niwun.pair.com [209.68.2.70]) by hub.freebsd.org (Postfix) with SMTP id 7820637B50F for ; Tue, 21 Aug 2001 13:40:56 -0700 (PDT) (envelope-from silby@silby.com) Received: (qmail 96305 invoked by uid 3193); 21 Aug 2001 20:40:54 -0000 Received: from localhost (sendmail-bs@127.0.0.1) by localhost with SMTP; 21 Aug 2001 20:40:54 -0000 Date: Tue, 21 Aug 2001 16:40:54 -0400 (EDT) From: Mike Silbersack X-Sender: To: Giorgos Verigakis 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, 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. Mike "Silby" Silbersack To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message