[CentOS] Filesystem for Maildir

Tue Dec 4 13:11:10 UTC 2007
Heitor A.M. Cardozo <heitor at centralserver.com.br>

Christopher Chan wrote:
>
> 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.

> But I am surprised at the overall performance regressions in 
> comparison to 2.6.5/6 kernels with regards to deliveries vs amount of 
> writers.Heitor, you are using a 3ware 95xx or 96xx with BBU write 
> cache and write caching on right? How much RAM do you have for your 
> cache? How is your raid10 configured? I cannot believe a four disk 
> raid0 array can beat a software raid mirror of scsi disks as used by 
> Bruce Guenter.
>
3ware 9650SE with BBU and write cache on.
Available memory: 224 MB
Bus Type/Speed: PCIe/2.5 Gbps
RAID10: 4 RAID1 subunits with MAXTOR STM3500630AS 500GB SATA2

>
> Thanks Heitor. Is the site down or something? I cannot access the 
> page....it is timing out.
The site is online now.

Regards,

Heitor A. M. Cardozo