You more than likley havn't setup your kernel correctly...
One thing that stuffed me up was that I needed to enable udma for my hard disk
controller, otherwise I would get 3mb/s (hdparam -t /dev/hda) but with it
enabled for my specific chipset I get at 26mb/s which makes things alot
faster...
I would be guessing you have done something simular, and as I'm not at my home
computer I can't tell you the exact settings, but you'll see if it if you look
for it.
I'll tell you the exact option when i get home...
> Hello!
>
> I compiled a kernel for the first time and had a few questions.
>
> I run Redhat 7 on a P III. My previous kernel was '2.2.16-22' (uname)
> and my new kernel is 2.4.2 (compiled with the default config options)
>
> According to information on the web, 2.4.2 should deliver a slight
> performance increase. However, my machine is almost half as slow
> with the new kernel (verified by time-ing compiles in command line mode
> and also with x11perf while running X)
>
> The problem seems to be that RedHat adds optimisations to it's distro
> kernels that the stock 2.4.2 kernel doesn't have these (or may be features
> not enables in the default kernel config)
> Here's one message my 2.2.16 kernel outputs at boot time:
> -------------
> raid5: MMX detected, trying high-speed MMX checksum routines
> pII_mmx : 1115.568 MB/sec
> p5_mmx : 1171.575 MB/sec
> 8regs : 860.679 MB/sec
> 32regs : 482.727 MB/sec
> using fastest function: p5_mmx (1171.575 MB/sec)
> -------------
> The 2.4.2 kernel I compiled generates no such message.
>
> Can someone help with these questions:
> 1. Is there a a way to generate a /usr/src/linux-2.2.16/.config for my
> *2.2.16* kernel?
> This would tell me how my kernel varied from a default 2.2.16 kernel.
>
> 2. Does Redhat makes specific patches to their distro kernels that aren't
> in the mainstream kernel. Is it possible to apply those to the 2.4 kernel?
> (Redhat doesn't 'support' 2.4 yet)
>
> 3. 'uname -a' informs me that my kernel is 2.2.16-22'
> while my current /usr/src/linux points to 'linux-2.2.16'
> Is the '-24' significant?
>
> Regards,
> Sonam
>
> --
> SLUG - Sydney Linux User Group Mailing List - http://slug.org.au/
> More Info: http://slug.org.au/lists/listinfo/slug
>
Daniel Finn
-> Email: [EMAIL PROTECTED]
-> ICQ: 4886934
-> Mobile: +61 (403) 364302
Nepean Micro Computers -
www.nmc.com.au
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