I don't see how this would really help with general I/O performance,
the RAID code is in the kernel, plus with the RAID thread itself
taking less than 20% of the CPU (usually around 10%) I don't see this
as a processor issue but more of a hardware (motherboard, memory bandwidth,
disk bandwidth) issue.
Steve
-----Original Message-----
From: Dan Bethe <[EMAIL PROTECTED]>
To: Stephen Costaras <[EMAIL PROTECTED]>
Cc: [EMAIL PROTECTED] <[EMAIL PROTECTED]>
Date: Saturday, November 07, 1998 11:25 AM
Subject: Re: Improving RAID5 performance (what disks/configuration?)
>On Sat, 7 Nov 1998, Stephen Costaras wrote:
>
>> Seeing as we're all using RAID here, someone might know how to eek
>> better performance out of a I/O subsystem.
>
> You could try compiling your kernel and C library with pentium
>GCC. It's at www.goof.com/pcg and is stable at all optimization levels,
>such as CFLAGS=-O6.
> Also try kernel 2.1, and hdparm for IDE drives.
> If you dont have a pentium, try the egcs enhanced gcc compiler,
>which is what pgcc is based on.
> I've seen 200% improvements with the unix Byte benchmark. Quake
>even has higher fps with a pentium-optimized math library.
>
>
