Date: Sat, 02 Nov 2002 02:40:32 -0800 From: Terry Lambert <tlambert2@mindspring.com> To: Michal Mertl <mime@traveller.cz> Cc: Bill Fenner <fenner@research.att.com>, current@FreeBSD.ORG Subject: Re: crash with network load (in tcp syncache ?) Message-ID: <3DC3ABA0.97988F96@mindspring.com> References: <Pine.BSF.4.41.0211021024080.87031-100000@prg.traveller.cz>
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Michal Mertl wrote: > This patch fixes the panics for me. Thanks a lot. I believe it should be > commited. I agree (Mark Murray -- this was the patch I was talking about). > BTW: I get about 850 fetches pers second on UP an 600 SMP (the same > machine and settings). Don't know if it's expected in this usage pattern. It's expected. "Fetches per second" isn't a very good benchmark, FWIW. It doesn't tell us how to repeat it. A better measure is connections per second (at least for a server box). With proper tuning, and some minor patches, 7000/second isn't hard to get. If you add the Duke University version of the Rice University patches for LRP, modify the mbuf allocator for static freelisting and then pre-populate it, and tune the kernel properly, you should be able to get over 20,000 connections per second. The best I've managed with a modified FreeBSD 4.2, before the SYN-cache code, was 32,000/second. Use "MAST" or "http_load" on a number of simultaneous clients to get in the neighborhood of those numbers. -- Terry To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-current" in the body of the message
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