Re: kernels and b0xen
On Tue, Jan 21, 2003 at 22:40:22 +0100, Michel Lanners composed:
> On 21 Jan, this message from Geert Uytterhoeven echoed through cyberspace:
> > On Mon, 20 Jan 2003 simon@nuit.ca wrote:
> >
> > Ugh, I have a 200 MHz 604e and 128 MB RAM, but it takes much less time (between
> > 30 and 45 minutes, IIRC) on my machine. I guess a 66 MHz memory bus (perhaps
> > you have 40?) and a fast disk (I have UW-SCSI) do matter.
>
> Yeah, two hours is horrible.... a few random ideas:
>
> - kernel config: don't build stuff you don't need.
nope, did that at first, but quickly realised that ;);
> - check your hard disk speed: hdparm -tT /dev/<disk with kernel source>
> (is non-destructive; post the result to compare)
1. Timing buffer-cache reads: 128 MB in 3.73 seconds = 34.32 MB/sec
Timing buffered disk reads: 64 MB in 18.10 seconds = 3.54 MB/sec
2. /dev/sda:
Timing buffer-cache reads: 128 MB in 3.68 seconds = 34.78 MB/sec
Timing buffered disk reads: 64 MB in 12.71 seconds = 5.04 MB/sec
> - more memory will help; but 84 MB is not _that_ bad, unless you have
> plenty of other things going on.
i do; i should prolly turn things off (except for essential things while
i do this)
> - faster processor: it looks like you have some 7600/8600 machine; you
> may want to consider a G3 CPU upgrade. 300-400 MHz cards should be
> cheap by now...
heh, i could if i would, but there are other more essential priorities
that take precedence.
on the CPU: it's an improvement on the 601 that used to be in here, and
there was 52 MB RAM - totalling about 3-4 hours for a kernel.
cheers to all,
simon
> Cheers
>
> Michel
>
> -------------------------------------------------------------------------
> Michel Lanners | " Read Philosophy. Study Art.
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>
>
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