We use ext3 for maildir. I have not had any issues to date. This is
also on fibre SAN drives, not ATA.
On Nov 26, 2007, at 12:22 PM, Heitor Augusto M Cardozo wrote:
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.
Regards,
Heitor A.M. Cardozo
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