Re: [PROPOSAL] 2.4.27 as default 2.4 kernel for sarge
On Fri, Aug 27, 2004 at 07:10:55PM +0800, John Summerfield wrote:
> Sven Luther wrote:
>
> >>All here who have 2.4 and 2.6 kernels on ppc should try disk speed tests
> >>with hdparm: I found my new Athlon (well the mobo's new, CPU's not) is
> >>30% faster with the 2.4 kernel.
> >>
> >>
> >
> >Have you reported a bug report on this ? And with which 2.6 kernel was it
> >?
> >
> >
> I haven't. I planned on discussing it on debian-user first, and I
> mentioned it in passing in another thread and someone else was going to
> tell me what I did wrong.
>
> I posted further details, but there's been no response.
>
> The kernel is 2.6.7-1-k7; it may be a day or so before I could try 8 as
> I'm on dialup and my modem's rather busy atm.
>
> the mobo's a Gigabyte GA-7S748-L - SiS 748 chipset, LAN.
>
> fwiw I noticed something very like this between 2.2 and 2.4 when 2.4 was
> new: 2.2 was faster on my Pentium system. I think it was a earlier
> version of the same chipset.
>
> Here are results on 2.6.7-1-k7:
> /dev/hda:
> Timing buffered disk reads: 108 MB in 3.02 seconds = 35.78 MB/sec
>
> /dev/hdg:
> Timing buffered disk reads: 120 MB in 3.01 seconds = 39.93 MB/sec
> kowari:/etc#
>
> Both drives are WD120 Gb (different models), hdg is on an Abit hotrod66
> (promise chips).
And how much you would get in 2.4 ?
> >>If something like this is true of ppc too, you wouldn't want to drop 2.4
> >>kernels.
> >>
> >>
> >
> >Well, it should be fixed instead. None of upstream (all the linux-ppc
> >devleopers) have any interest left for 2.4, so there is really no sane way
> >to
> >keep the support going unless we do it all ourselves.
> >
> >
>
> It's worth testing; if you find no problem you have no problem:-)
Well, for that i would need to reboot into 2.4, which is not practical right
now.
Friendly,
Sven Luther
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