Date: Wed, 31 Dec 2008 10:16:11 +0200 From: Manolis Kiagias <sonic2000gr@gmail.com> To: Bernard Dugas <bernard@dugas-family.org> Cc: "freebsd-questions@freebsd.org" <freebsd-questions@freebsd.org> Subject: Re: Optimising NFS for system files Message-ID: <495B2A4B.8010002@gmail.com> In-Reply-To: <495B2516.4020904@dugas-family.org> References: <20081216094719.EDCEE1065675@hub.freebsd.org> <495930E4.1030501@dugas-family.org> <20081229230115.F68805@wojtek.tensor.gdynia.pl> <4959DFEF.5090407@dugas-family.org> <20081230150507.U87347@wojtek.tensor.gdynia.pl> <495A3957.9050002@dugas-family.org> <495A3C72.5070802@unsane.co.uk> <20081230201351.L12391@wojtek.tensor.gdynia.pl> <495A9595.6080201@dugas-family.org> <20081231002557.D45571@wojtek.tensor.gdynia.pl> <495B2516.4020904@dugas-family.org>
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Bernard Dugas wrote: > Wojciech Puchar wrote: > >>> nfsserver# time tar -cf - clientusr-amd64 > /dev/null >>> 5.001u 12.147s 1:23.92 20.4% 69+1369k 163345+0io 0pf+0w >>> >>> client9# time tar -cf - /usr > /dev/null >>> tar: Removing leading '/' from member names >>> 3.985u 19.779s 4:32.47 8.7% 74+1457k 0+0io 0pf+0w >>> >>> Note : clientusr-amd64 is around 1.3GB and is the same directory >>> exported to client9 /usr with nfs. >>> >> it's FAST. what's wrong? > > First thing that may be wrong is the understanding of the time > figures. The documentation is not clear about them and the -h option > is not working : > > client6# time -h tar -cf - /usr > /dev/null > -h: Command not found. > 0.000u 0.000s 0:00.00 0.0% 0+0k 0+0io 0pf+0w Just a sidenote, you are probably getting a version of time integrated to your shell. The -h option works fine in /usr/bin/time, so run like this: client6# /usr/bin/time -h tar -cf - /usr > /dev/null
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