slow after upgrade to CentOS 5 (RHEL5)

Quoted 4 lines · James Bottomley

Please don't drop the cc lists. There are others who probably have more informed opinions than I do who won't get to comment if they don't see it.

Quoted 11 lines

Quoted 10 lines · Anthony Ewell

Quoted 9 lines · James Bottomley

Quoted 8 lines · Anthony Ewell

Quoted 7 lines · James Bottomley

Quoted 6 lines · Anthony Ewell

Hi All,

If you all would not mind a post from the general
public Linux user, after doing a complete disk wipe of CentOS 4 and installing CentOS5, my system is preceived to be 3 times slower.

Did some test from my install CD/DVD's in "rescue mode" on Computer C. I used the same backup script (dump) that I use in normal boot mode. I stopped the backup after dump gave the first estimate of time:

"dump" CentOS5 install DVD in rescue mode:
transfer rate 4422 KB/s, estimated finish 4:10

"dump" CentOS4.4 (2.6.9-42.EL) install CD in rescue mode:
transfer rate 8468 KB/s, estimated finish 2:09

I also got a "dmesg" from computer B, as requested by Sumant. Computer B: VXA-3, CentOS 4.5 , SATA-150-4

-T

Hi All,

I also tested using the System Rescue CD from
http://www.sysresccd.org.

I used the same backup script (dump) that I use in normal boot mode. I stopped the backup after dump gave the first estimate of time:

"dump" System Rescue CD (Kernel 2.6.22.9):
transfer rate 4370 KB/s, estimated finish 4:15

So, I would say, the problem is not confined to CentOS 5, but goes all the way up to the 2.6.22.9 kernel. I hope this is a good clue.

-T