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From: Dark Shadow <shadowofdarkness@gmail.com>
To: reiserfs-list@namesys.com
Subject: Why is Reiser4 slower then ReiserFS v3
Date: Mon, 27 Dec 2004 13:38:12 -0700	[thread overview]
Message-ID: <231dafb5041227123867a2c873@mail.gmail.com> (raw)

I am running a Linux from Scratch system and I just upgraded to Linux
kernel 2.6.10-cko1 (first time away from a vanilla kernel) in order to
try out Reiser4 but after formatting a drive I noticed it is slower
here is the best test I could run

I have three hard drives so I took a file from one and copied it to
the others and timed it
source drive /dev/hda Reiser3 Western Digital 40gb 7200rpm
target1 drive /dev/hdb Reiser4 Western Digital 80gb 7200rpm
target2 drive /dev/sda Reiser3 Seagate 160gb 7200rpm (SATA but still
same rpm as rest so it should be the same)



time cp ~/800mb.file /target1
real    0m41.409s
user    0m0.010s
sys     0m4.364s


time cp ~/800mb.file /target2
real    0m38.318s
user    0m0.017s
sys     0m5.627s


What formatting command would I use the get best speed for the
following situation
capturing raw uncompressed 720x480x29.97 video from my pci tv card.
The best I got with reiserfs v3 was 640x480x29.97 and it would end up
making a 50gb file in 64 minutes.

             reply	other threads:[~2004-12-27 20:38 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2004-12-27 20:38 Dark Shadow [this message]
2004-12-27 23:53 ` Why is Reiser4 slower then ReiserFS v3 Valdis.Kletnieks
2004-12-28 21:34   ` Hans Reiser
2004-12-28 18:52 ` Adrian Ulrich
2004-12-28 21:42   ` Hans Reiser
2004-12-29  6:34     ` Adrian Ulrich

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