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List: linux-xfs
Subject: Re: XFS performance problems on Linux x86_64
From: Tóth Csaba <tsabi () tsabi ! hu>
Date: 2007-11-30 7:17:32
Message-ID: 474FB90C.4060905 () tsabi ! hu
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Hello list,
I tried this parameters, and got this results with bonnie++. As i think
there isnt any speedup with this parameteres, or i am doing something wrong?
tsabi
oldbck ~ # uname -a
Linux oldbck 2.6.23-gentoo-r2-uk-01 #1 SMP Tue Nov 20 03:43:04 CET 2007
x86_64 Intel(R) Xeon(TM) CPU 2.80GHz GenuineIntel GNU/Linux
test 1:
oldbck mnt # mkfs.xfs -i size=512 -f /dev/md5
meta-data=/dev/md5 isize=512 agcount=32, agsize=4513008
blks
= sectsz=512 attr=0
data = bsize=4096 blocks=144416192, imaxpct=25
= sunit=16 swidth=64 blks, unwritten=1
naming =version 2 bsize=4096
log =internal log bsize=4096 blocks=32768, version=1
= sectsz=512 sunit=0 blks, lazy-count=0
realtime =none extsz=262144 blocks=0, rtextents=0
oldbck mnt # mount /dev/md5 /mnt/data
oldbck mnt # bonnie++ -u root -d /mnt/data
Version 1.93c ------Sequential Output------ --Sequential Input-
--Random-
Concurrency 1 -Per Chr- --Block-- -Rewrite- -Per Chr- --Block--
--Seeks--
Machine Size K/sec %CP K/sec %CP K/sec %CP K/sec %CP K/sec %CP
/sec %CP
oldbck 4G 522 99 235160 50 86692 17 1040 96 241681 22
457.9 9
Latency 15620us 205ms 119ms 100ms 50727us
79657us
Version 1.93c ------Sequential Create------ --------Random
Create--------
oldbck -Create-- --Read--- -Delete-- -Create-- --Read---
-Delete--
files /sec %CP /sec %CP /sec %CP /sec %CP /sec %CP
/sec %CP
16 11000 77 +++++ +++ 13765 82 11977 83 +++++ +++
11049 77
Latency 66657us 49us 76936us 68300us 18us
72243us
1.93c,1.93c,oldbck,1,1196392150,4G,,522,99,235160,50,86692,17,1040,96,241681,22,457.9, \
9,16,,,,,11000,77,+++++,+++,13765,82,11977,83,+++++,+++,11049,77,15620us,205ms,119ms,100ms,50727us,79657us,66657us,49us,76936us,68300us,18us,72243us
test 2:
oldbck mnt # mkfs.xfs -f -l lazy-count=1,version=2,size=128m -i
attr=2,size=512 -d agcount=4 /dev/md5
meta-data=/dev/md5 isize=512 agcount=4, agsize=36104048
blks
= sectsz=512 attr=2
data = bsize=4096 blocks=144416192, imaxpct=25
= sunit=16 swidth=64 blks, unwritten=1
naming =version 2 bsize=4096
log =internal log bsize=4096 blocks=32768, version=2
= sectsz=512 sunit=16 blks, lazy-count=1
realtime =none extsz=262144 blocks=0, rtextents=0
oldbck mnt # mount -o logbsize=256k,nobarrier /dev/md5 /mnt/data
oldbck mnt # bonnie++ -u root -d /mnt/data
Version 1.93c ------Sequential Output------ --Sequential Input-
--Random-
Concurrency 1 -Per Chr- --Block-- -Rewrite- -Per Chr- --Block--
--Seeks--
Machine Size K/sec %CP K/sec %CP K/sec %CP K/sec %CP K/sec %CP
/sec %CP
oldbck 4G 523 99 237016 44 87202 17 1040 96 245389 22
446.5 7
Latency 15531us 184ms 133ms 105ms 11835us
85541us
Version 1.93c ------Sequential Create------ --------Random
Create--------
oldbck -Create-- --Read--- -Delete-- -Create-- --Read---
-Delete--
files /sec %CP /sec %CP /sec %CP /sec %CP /sec %CP
/sec %CP
16 12772 77 +++++ +++ 14759 74 13499 81 +++++ +++
11617 70
Latency 86835us 56us 79869us 79967us 24us
95818us
1.93c,1.93c,oldbck,1,1196391889,4G,,523,99,237016,44,87202,17,1040,96,245389,22,446.5, \
7,16,,,,,12772,77,+++++,+++,14759,74,13499,81,+++++,+++,11617,70,15531us,184ms,133ms,105ms,11835us,85541us,86835us,56us,79869us,79967us,24us,95818us
test 3:
oldbck mnt # mkfs.ext3 /dev/md5
mke2fs 1.40.2 (12-Jul-2007)
Filesystem label=
OS type: Linux
Block size=4096 (log=2)
Fragment size=4096 (log=2)
72220672 inodes, 144416192 blocks
7220809 blocks (5.00%) reserved for the super user
First data block=0
Maximum filesystem blocks=4294967296
4408 block groups
32768 blocks per group, 32768 fragments per group
16384 inodes per group
Superblock backups stored on blocks:
32768, 98304, 163840, 229376, 294912, 819200, 884736, 1605632,
2654208,
4096000, 7962624, 11239424, 20480000, 23887872, 71663616, 78675968,
102400000
Writing inode tables: done
Creating journal (32768 blocks): done
Writing superblocks and filesystem accounting information: done
This filesystem will be automatically checked every 32 mounts or
180 days, whichever comes first. Use tune2fs -c or -i to override.
oldbck mnt # mount /dev/md5 /mnt/data
oldbck mnt #
oldbck mnt # bonnie++ -u root -d /mnt/data
Version 1.93c ------Sequential Output------ --Sequential Input-
--Random-
Concurrency 1 -Per Chr- --Block-- -Rewrite- -Per Chr- --Block--
--Seeks--
Machine Size K/sec %CP K/sec %CP K/sec %CP K/sec %CP K/sec %CP
/sec %CP
oldbck 4G 326 99 211619 80 91680 23 1341 96 237493 21
495.5 9
Latency 32953us 220ms 1599ms 62374us 59342us
472ms
Version 1.93c ------Sequential Create------ --------Random
Create--------
oldbck -Create-- --Read--- -Delete-- -Create-- --Read---
-Delete--
files /sec %CP /sec %CP /sec %CP /sec %CP /sec %CP
/sec %CP
16 +++++ +++ +++++ +++ +++++ +++ +++++ +++ +++++ +++
+++++ +++
Latency 7677us 165us 252us 17010us 13us
243us
1.93c,1.93c,oldbck,1,1196389368,4G,,326,99,211619,80,91680,23,1341,96,237493,21,495.5, \
9,16,,,,,+++++,+++,+++++,+++,+++++,+++,+++++,+++,+++++,+++,+++++,+++,32953us,220ms,1599ms,62374us,59342us,472ms,7677us,165us,252us,17010us,13us,243us
David Chinner írta:
> On Wed, Nov 28, 2007 at 12:13:57AM +0100, Bernd Schubert wrote:
> > Hello David,
> >
> > David Chinner wrote:
> > > # mkfs.xfs -f -l lazy-count=1,version=2,size=128m -i attr=2 -d agcount=4
> > > # <dev> mount -o logbsize=256k <dev> <mtpt>
> > thanks, I was also going to ask which are optimal parameters. Just didn't
> > have the time yet :)
> > Any idea when these options will be default?
>
> They should already be the defaults in the current CVS tree. ;)
>
> Cheers,
>
> Dave.
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