Ivy Bridge+CentOS 5.8+8G Memory=Troughput600MB+ of 12 disks

[giggshuo]

Hi
Here have a hot potato for me,need some help!!!

I have a storage server that installed CentOS5.8!
And Cpu is E3-1230v2(Ivy Bridge),memory is 8G(4G*2),then I take some performance testing by XDD of 12 disks,throughput only have 600MB.Some changes can be improve the throughput to 1800MB+ as below
1.Increase the physical memory to 16G,and greater than 8G not be tied up.
or
2.Change CPU to E3-1220 or 1275 (Sandy Bridge)
or
3.Change OS to CentOS6.3


I don't know what is related to this,need somebody give me a suggestion!

[TrevorH]

Please don't make duplicate posts. Replies to this thread should be directed to [url=https://www.centos.org/modules/newbb/viewtopic.php?topic_id=41106&forum=37]the other one[/url] to which I replied with some questions just now. This one is now locked.