Date: Wed, 24 Aug 2005 19:49:39 +0200 From: JG <jarek@adeon.lublin.pl> To: "Steven Hartland" <killing@multiplay.co.uk> Cc: freebsd-performance@freebsd.org Subject: Re[2]: slow tar performance on fbsd5 Message-ID: <818587040.20050824194939@adeon.lublin.pl> In-Reply-To: <068901c5a8cd$4b8a15f0$7f06000a@int.mediasurface.com> References: <1168719770.20050824183357@adeon.lublin.pl> <068901c5a8cd$4b8a15f0$7f06000a@int.mediasurface.com>
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> Might be silly but do u get similar results if u: > 1. expand to a memory backed disk > 2. expand to /dev/null Hello, Thank you for test advice. FreeBSD: # time tar -xf mysql-m.tgz -O > /dev/null 1.125u 3.007s 0:04.13 99.7% 41+323k 0+0io 0pf+0w # time tar -xf mysql-m.tgz -O > /dev/null 1.194u 3.013s 0:04.22 99.5% 41+321k 1+0io 0pf+0w So the same result twice. BTW It's fast. ------------------------------- Gentoo: # time tar -xf mysql-m.tgz -O > /dev/null real 0m7.586s user 0m0.906s sys 0m1.352s # time tar -xf mysql-m.tgz -O > /dev/null real 0m1.640s user 0m0.833s sys 0m0.808s Seems like a cached. First time 7,5 sec, each next time it takes only 1.6secs. I checked it with the other file and result is the same. Anyway, it's only a few secs difference, so the problem must be with write. Any other hints? :) Thank You, JG
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