Re: Perfect buffer/swapping in pre-patch-2.0.31-2 + a few changes

Erik Andersen (
Sat, 12 Jul 1997 21:21:25 -0600

On Jul 10, Dr. Werner Fink wrote
> Hi,
> I'm writing this mail in rmail-mode of emacs on a X display on a system
> load between 9 and 29 due a pair running `make -j' in two kernel trees
> together with a `tar tfvz <66434131Kb_gzip_tar_on_NFS> > /dev/null '.
> Sometimes it's a bit slow if the load is above 20 :-) ... but it works
> quit good. It's only a i586/133 with 64Mb and 80Mb swap.

[------------stuff snipped-------------]

> Werner

I just tried your patch, and it seems to work VERY well. I just did a
make -j kernel compile while running netscape, and reading the linux-kernel
mailing list. My system load got so high that xload was completely black,
but everything worked, and mutt (my mail program) was only a bit sluggish.
This is on an AMD K6 200, 32 Megs ram, 64 Megs swap, with the perfect buffer
cache patch on top of pre-patch-2.0.31-2 and some IDE patches from Gadi Oxman.
This may really be the perfect buffer cache patch. No more thrashing
for swap when the system load goes balistic. Good work!


Erik B. Andersen   Web: 
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