Date: Tue, 21 Aug 2001 23:52:16 +0300 (EEST) From: Giorgos Verigakis <verigak@algol.vtrip-ltd.com> To: Mike Silbersack <silby@silby.com> Cc: <freebsd-hackers@freebsd.org> Subject: Re: Zope's performance issues Message-ID: <Pine.LNX.4.30.0108212347240.27572-100000@algol.vtrip-ltd.com> In-Reply-To: <Pine.BSF.4.30.0108211638490.74527-100000@niwun.pair.com>
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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
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