Re: RHEL 3 x86 and LSI Megaraid

[Stephen Smoogen <smoogen lanl gov>]

Could you give absolute kernel versions for these by the way.. it might 
help track down where things went bad. The other issues I can think of 
are:

1) hdparm is not written for SCSI disks and RAID controllers. It does
low level things that might change the time numbers between kernels if
the code changes. Using Bonnie++ or other tools will probably get a 
quicker kernel answer as they wont be saying the above. [the dd also 
gives better answers, but using a standard tool probably would get rid 
of all the 'what-ifs']

2) If possible see if the module from the RHL 9 version that gives good 
times can compile with a RHEL kernel. If it can.. then you can use it 
for a second test of where in the kernel the slowdown has occurred.

-- 
Stephen John Smoogen            smoogen lanl gov
Los Alamos National Labrador  CCN-5 Sched 5/40  PH: 5-8058
Ta-03 SM-261  MailStop P208 DP 17U  Los Alamos, NM 87545
-- So shines a good deed in a weary world. = Willy Wonka --