[CentOS] Re: Filesystem for Maildir
Scott Silva
ssilva at sgvwater.com
Mon Nov 26 20:44:20 UTC 2007
on 11/26/2007 11:22 AM Heitor Augusto M Cardozo spake the following:
> Hi all,
>
> In last year, i had made some research and benchmarks based on CentOS 4
> to know which filesystem is better for Maildir: ReiserFS, XFS or EXT3.
>
> My conclusion was as follows:
>
> - EXT3: reliable but very slow to read many small files.
> - ReiserFS: best performance but unreliable and bad recovery tools.
> - XFS: My choice, good performance and reliability.
>
> On CentOS 5.0, a had the same benchmarks and now, EXT3 and XFS seems to
> had better or equivalent performance on Read and Create Random files.
> One of this tests, using bonnie++, show this:
>
> # bonnie++ -d /mnt/sdc1/testfile -s 8192 -m `hostname` -n
> 50:150000:5000:1000
>
> XFS:
> Version 1.03 ------Sequential Output------ --Sequential Input-
> --Random-
> -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
> localhost 8G 74048 99 201584 32 74014 12 61610 92 228977 18
> 623.5 0
> ------Sequential Create------ --------Random
> Create--------
> -Create-- --Read--- -Delete-- -Create-- --Read---
> -Delete--
> files:max:min /sec %CP /sec %CP /sec %CP /sec %CP /sec %CP
> /sec %CP
> 50:158999:5125/1000 692 12 82 0 3502 28 529 7 107 0
> 1149 11
> localhost,8G,74048,99,201584,32,74014,12,61610,92,228977,18,623.5,0,50:158999:5125/1000,692,12,82,0,3502,28,529,7,107,0,1149,11
>
> EXT3:
> Version 1.03 ------Sequential Output------ --Sequential Input-
> --Random-
> -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
> localhost 8G 54569 99 249788 68 75268 11 59128 91 211926 15
> 587.2 0
> ------Sequential Create------ --------Random
> Create--------
> -Create-- --Read--- -Delete-- -Create-- --Read---
> -Delete--
> files:max:min /sec %CP /sec %CP /sec %CP /sec %CP /sec %CP
> /sec %CP
> 50:158999:5125/1000 748 15 256 1 1081 5 713 15 108 0
> 207 1
> localhost,8G,54569,99,249788,68,75268,11,59128,91,211926,15,587.2,0,50:158999:5125/1000,748,15,256,1,1081,5,713,15,108,0,207,1
>
>
> What i want to know is: Anyone use or recommend EXT3 for Maildir?
>
> My configuration: 3Ware 9650SE-8LPML, 8 drives SATA2 ST3500630AS 500GB
> on RAID 10.
>
Ext3 is pretty good if directory indexes are on.;
See http://wiki.archlinux.org/index.php/Ext3_Filesystem_Tips
--
MailScanner is like deodorant...
You hope everybody uses it, and
you notice quickly if they don't!!!!
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