[Ocfs2-users] Slow OCFS2 file creation / how to make ocfs2 generally faster?
Sunil Mushran
sunil.mushran at oracle.com
Wed Aug 31 12:07:55 PDT 2011
On 08/24/2011 09:56 PM, Stefan Priebe - Profihost AG wrote:
>
> ok here is a new complete test with values before and after and all bonnie details.
>
> File creation and seq. delete drops again massively.
>
Version 1.96 ------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
server123-han 16G 519 99 113505 22 44504 8 2601 99 97508 6 1241 18 1node
server123-han 16G 441 99 113301 23 45351 6 2641 99 102175 6 1158 16 2node
server123-han 16G 1715 98 117309 6 47932 4 4656 98 141380 7 796.2 24 xfs
Version 1.96 ------Sequential Create------ --------Random Create--------
server123-han -Create-- --Read--- -Delete-- -Create-- --Read--- -Delete--
files:max /sec %CP /sec %CP /sec %CP /sec %CP /sec %CP /sec %CP
1024:32768:0/1024 3147 75 437 10 1670 23 3145 76 68 1 197 2 1node
1024:32768:0/1024 569 39 178 7 866 20 556 39 63 3 183 4 2node
1024:32768:0/1024 2611 27 873 5 8528 76 2604 27 93 0 3875 51 xfs
Yes, there is a drop in creates. Creates are a bit heavy on cluster locks. There
is scope for improvement at our end.
Read/writes are fairly stable though.
Unfortunately, I've forgotten your original qs.
More information about the Ocfs2-users
mailing list