Date: Sun, 04 Feb 1996 09:43:33 -0800 From: "Justin T. Gibbs" <gibbs@freefall.freebsd.org> To: Bruce Evans <bde@zeta.org.au> Cc: curt@emergent.com, jgreco@brasil.moneng.mei.com, freebsd-hackers@freebsd.org Subject: Re: Watchdog timers (was: Re: Multi-Port Async Cards) Message-ID: <199602041743.JAA17042@freefall.freebsd.org> In-Reply-To: Your message of "Mon, 05 Feb 1996 02:32:57 %2B1100." <199602041532.CAA02747@godzilla.zeta.org.au>
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>I thought -current would be much better with -o async. However: > >FreeBSD-current - 486DX2/66 - 16MB RAM (BT445C Quantum Grand Prix drive, >1/3 full 1G fs) >(too-small buffer cache (nbuf = 247) + vm buffers that I don't understand) > >10000 files in 468 seconds - first run > 467.76 real 0.87 user 17.19 sys (time /tmp/prog) > 0.33 real 0.01 user 0.03 sys (time sync) >10000 files in 295 seconds - second run > 295.34 real 0.87 user 12.86 sys (time /tmp/prog) > 0.33 real 0.02 user 0.02 sys (time sync) Yes, but this is not exactly fair. Your SCSI controller only has 5 times the command overhead as your IDE card (because you have a very poor SCSI controller). I'd like to see the performance difference on the same hardware. >Bruce -- Justin T. Gibbs =========================================== FreeBSD: Turning PCs into workstations ===========================================
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