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<font size="-1"><font face="Verdana">Hi all,<br>
<br>
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.<br>
<br>
My conclusion was as follows:<br>
<br>
- EXT3: reliable but very slow to read many small files.<br>
- ReiserFS: best performance but unreliable and bad recovery tools.<br>
- XFS: My choice, good performance and reliability.<br>
<br>
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:<br>
<br>
# bonnie++ -d /mnt/sdc1/testfile -s 8192 -m `hostname` -n
50:150000:5000:1000<br>
<br>
XFS:<br>
Version 1.03 ------Sequential Output------ --Sequential Input-
--Random-<br>
-Per Chr- --Block-- -Rewrite- -Per Chr- --Block--
--Seeks--<br>
Machine Size K/sec %CP K/sec %CP K/sec %CP K/sec %CP K/sec %CP
/sec %CP<br>
localhost 8G 74048 99 201584 32 74014 12 61610 92 228977
18 623.5 0<br>
------Sequential Create------ --------Random
Create--------<br>
-Create-- --Read--- -Delete-- -Create-- --Read---
-Delete--<br>
files:max:min /sec %CP /sec %CP /sec %CP /sec %CP /sec %CP
/sec %CP<br>
50:158999:5125/1000 692 12 82 0 3502 28 529 7 107 0
1149 11<br>
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<br>
<br>
EXT3:<br>
Version 1.03 ------Sequential Output------ --Sequential Input-
--Random-<br>
-Per Chr- --Block-- -Rewrite- -Per Chr- --Block--
--Seeks--<br>
Machine Size K/sec %CP K/sec %CP K/sec %CP K/sec %CP K/sec %CP
/sec %CP<br>
localhost 8G 54569 99 249788 68 75268 11 59128 91 211926
15 587.2 0<br>
------Sequential Create------ --------Random
Create--------<br>
-Create-- --Read--- -Delete-- -Create-- --Read---
-Delete--<br>
files:max:min /sec %CP /sec %CP /sec %CP /sec %CP /sec %CP
/sec %CP<br>
50:158999:5125/1000 748 15 256 1 1081 5 713 15 108 0
207 1<br>
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<br>
<br>
<br>
What i want to know is: Anyone use or recommend EXT3 for Maildir?<br>
<br>
My configuration: 3Ware 9650SE-8LPML, 8 drives SATA2 ST3500630AS 500GB
on RAID 10.<br>
<br>
Regards,<br>
<br>
Heitor A.M. Cardozo</font></font>
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