From: Radim Kolar <hsn@cybermail.net>
To: ReiserFS List <reiserfs-list@namesys.com>
Subject: filesystem overhead on large files
Date: Sun, 11 Aug 2002 12:33:28 +0200 [thread overview]
Message-ID: <20020811103327.GA8189@home> (raw)
tests on 100 mb file on ide disk
hdd: 6306048 sectors (3229 MB) w/81KiB Cache, CHS=6256/16/63, (U)DMA
dt was using async io in this test
./dt of=/dev/hdd1 limit=100m bs=16k dispose=keep passes=10 errors=50
enable=aio
kernel 2.4.19
=============
Raw disk IO: /dev/hdd1
read 2260674 bytes/sec
write 3542486 bytes/sec
reiserfs:
read 2265559 bytes/sec
write 3524625 bytes/sec
ext2:
read 2226276 bytes/sec
write 3214847 bytes/sec
ext3:
read 2189094 bytes/sec
write 3201759 bytes/sec
minix:
read 2208303 bytes/sec
write 3046710 bytes/sec
vfat:
read 2159045 bytes/sec
write 2573193 bytes/sec
i do not have XFS there XFS claims to be filesystem with highest possible
transfer rate on large files, but this test shows that reiserfs has
almost zero overhead on large files, so it can be also multimedia fs.
We are considering to use Oracle in raw disk mode (without filesystem)
and this test shows that you will not get any benefit from that - and
backup/restore procedure is more complicated.
next reply other threads:[~2002-08-11 10:33 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-08-11 10:33 Radim Kolar [this message]
2002-08-12 16:30 ` filesystem overhead on large files Brian Tinsley
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