> With 2.4.x kernel my system (Celeron (Coppermine) 850Mhz (100x8.5)
> 256Mb i810) behaves like slow i386sx.
>
> For example, when I extract 25MB gzip file on 2.2.19 kernel - it
> takes about 12 seconds, but with 2.4.8(9) - 6(!) MINUTES on the SAME
> system...
>
> The only idea is that 2.4.x kernel turns off cache (L1 & L2) on
> processor (on my cpu). How can I check it? Any ideas?
No, we don't do any such frobbing of the cache control registers.
It is enabled in the BIOS right ?
Another thing that it might be, is if you're using ACPI instead of
APM, the cpu-idle may be causing the CPU to run slower than usual
though throttling.
Although, I've not seen this happen to the extent of what you're
reporting. If you are running with an ACPI kernel, try booting
with an APM kernel instead to see if it makes a difference.
regards,
Dave.
-- | Dave Jones. http://www.suse.de/~davej | SuSE Labs- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/