Date: Mon, 11 Feb 2008 19:12:55 +0100 From: Ivan Voras <ivoras@freebsd.org> To: freebsd-current@freebsd.org Subject: Re: Disappointing speed with ZFS Message-ID: <foq37a$e1r$1@ger.gmane.org> In-Reply-To: <DD62C8A1-D508-497A-AFF8-008E54538280@lexasoft.ru> References: <9DA6FFCD-11DB-4580-9314-52B0885351D8@lexasoft.ru> <fopmlp$qeh$1@ger.gmane.org> <0EF3CEE6-6F38-4713-A245-4354D34AFE75@lexasoft.ru> <9bbcef730802110921i6af516b9t855a4065884cc64b@mail.gmail.com> <79D93B0C-589E-41C6-A952-6D573297D9F9@lexasoft.ru> <foq23b$9j1$1@ger.gmane.org> <DD62C8A1-D508-497A-AFF8-008E54538280@lexasoft.ru>
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Alexey Tarasov wrote: > ls -lash CentOS-5.1-x86_64-bin-DVD.iso > > 4341952 -rw-r--r-- 1 lexa wheel 4,1G 7 фев 16:24 > CentOS-5.1-x86_64-bin-DVD.iso > > `--# dd if=CentOS-5.1-x86_64-bin-DVD.iso of=test2 Ok, now try this one: # dd if=CentOS-5.1-x86_64-bin-DVD.iso of=/dev/null bs=1m > > tty ad4 ad5 ad6 cpu > tin tout KB/t tps MB/s KB/t tps MB/s KB/t tps MB/s us ni sy in id > 0 351 7.33 1 0.01 57.37 44 2.44 43.02 44 1.87 1 0 1 0 98 > 0 594 0.00 0 0.00 59.00 15 0.89 62.63 301 18.38 0 0 9 0 91 > 0 287 0.00 0 0.00 59.20 25 1.44 64.00 325 20.29 1 0 50 0 49 > On 11.02.2008, at 20:53, Ivan Voras wrote: > >> Alexey Tarasov wrote: >> >>> `--# dd if=test.tmp of=test2.tmp >> >>> >>> tty ad4 ad5 >>> ad6 cpu >>> tin tout KB/t tps MB/s KB/t tps MB/s KB/t tps MB/s us ni sy >>> in id >>> 1 238 0.00 0 0.00 60.22 18 1.04 64.00 982 61.37 1 0 31 >>> 2 67 >>> 1 3349 0.00 0 0.00 64.00 7 0.43 58.53 757 43.26 1 0 46 >>> 0 53 >>> 0 286 0.00 0 0.00 55.81 21 1.13 64.00 487 30.43 1 0 31 >>> 1 67 >>> 0 269 0.00 0 0.00 64.00 8 0.50 64.00 21 1.31 2 0 49 >>> 0 49 >> >> Ok, now do the same with the file that rtorrent is hashing in the "if" >> argument.
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