[CentOS] Filesystem for Maildir

Christopher Chan christopher at ias.com.hk
Wed Dec 5 06:32:20 UTC 2007


>>>> ext3 again takes the slowest performing title overall as 
>>>> expected...in fact it appears not much as changed fs vs fs wise 
>>>> since Bruce Guenter's tests. 
>>> I agree but the values are more "acceptable" in comparision with 
>>> others filesystems. On Bruce tests it shows a very bad performance 
>>> for reading.
>>
>> Yes, reads are vastly improved at the cost of write performance. 
>> Weird. XFS has like the best read response times too. XFS is looking 
>> very good at the moment with just about the fastest performance in 
>> everything. What io-scheduler is default on Centos 5? I assume you 
>> prefer read performance to write performance. After all, it is for 
>> maildir use. Have you tuned the box for read performance?
>>
> Initially this box is not tuned for read because I would to compare the 
> results of tests on default configuration with other configurations.
> 
> The default io-scheduler on CentOS 5 is CFQ.

Ah, thank you for doing all that testing.



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