Date: Mon, 25 Nov 2013 11:14:59 -0700 From: Eric Browning <ericbrowning@skaggscatholiccenter.org> Cc: FreeBSD FS <freebsd-fs@freebsd.org> Subject: Re: Performance difference between UFS and ZFS with NFS Message-ID: <CAM=5oeAPG0Vfa-fT1t=Vc8FS_jJGBiR=yq0wuUmEZYLYB%2Br7RA@mail.gmail.com> In-Reply-To: <CALfReyfDWTsgXf8JX-eNYOTFdkcYovUf0q=zGQPDUsEUi4nqbw@mail.gmail.com> References: <2103733116.16923158.1384866769683.JavaMail.root@uoguelph.ca> <9F76D61C-EFEB-44B3-9717-D0795789832D@gmail.com> <CAM=5oeAF2gfccrGNdbApUDpqRae4OQjZ7oaZZi4y1j%2BsF6PsTw@mail.gmail.com> <5969250F-0987-4304-BB95-52C7BAE8D84D@gmail.com> <CAM=5oeBmCAq9unFGC2CBoJ3rZMm9MtDw1DWkFpo2ZqQtx3G%2B=Q@mail.gmail.com> <18391B9C-2FC4-427B-A4B6-1739B3C17498@gmail.com> <CAM=5oeAXiRn2aHvNPuZRPFJp6G45OqdQEDsz2_xGobCUHJp_VQ@mail.gmail.com> <CAM=5oeAybYZsn-TQTvfYO3Kx-chZULeYUEhg9fRMi-CFX0aYBA@mail.gmail.com> <B7C29F362A5045B48BF4CE223E7CE0AD@multiplay.co.uk> <CALfReyfDWTsgXf8JX-eNYOTFdkcYovUf0q=zGQPDUsEUi4nqbw@mail.gmail.com>
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I am using /dev/zero /usr/bin/time -h dd if=/dev/zero of=sometestfile bs=1024 count=3000000 On Sun, Nov 24, 2013 at 12:31 PM, krad <kraduk@gmail.com> wrote: > I was thinking the same, if it was using /dev/zero as an input any > compression would skew the results a little. > > > On 24 November 2013 15:15, Steven Hartland <killing@multiplay.co.uk>wrote: > >> ----- Original Message ----- From: "Eric Browning" >> >> >> >> On a side note I forgot that I had used dd to test the disk performance a >>> while ago when I was using ZFS. >>> >>> ZFS performance: >>> 3072000000 bytes transferred in 34.167480 secs (89910055 bytes/sec) >>> 34.17s real 0.61s user 31.89s sys >>> >>> UFS performance: >>> 3072000000 bytes transferred in 11.848883 secs (259264942 bytes/sec) >>> 11.85s real 0.58s user 11.25s sys >>> >>> Again, even with dd performance is about 3x faster with UFS with the same >>> disks. >>> >> >> Interesting, what was you command exactly? >> >> Regards >> Steve >> >> ================================================ >> This e.mail is private and confidential between Multiplay (UK) Ltd. and >> the person or entity to whom it is addressed. In the event of misdirection, >> the recipient is prohibited from using, copying, printing or otherwise >> disseminating it or any information contained in it. >> In the event of misdirection, illegible or incomplete transmission please >> telephone +44 845 868 1337 >> or return the E.mail to postmaster@multiplay.co.uk. >> >> >> _______________________________________________ >> freebsd-fs@freebsd.org mailing list >> http://lists.freebsd.org/mailman/listinfo/freebsd-fs >> To unsubscribe, send any mail to "freebsd-fs-unsubscribe@freebsd.org" >> > > -- Eric Browning Systems Administrator 801-984-7623 Skaggs Catholic Center Juan Diego Catholic High School Saint John the Baptist Middle Saint John the Baptist Elementary
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