Re: [patch] new-vm improvement [Re: 2.2.0 Bug summary]

Benjamin Redelings I (bredelin@ucsd.edu)
Sat, 02 Jan 1999 23:41:43 -0800

Hi Andrea,
OK, I tested your latest VM and I'm impressed :) I have a 64MB PPro
box, and I tested a kernel compile. This isn't the BEST test, because
it doesn't stress the VM much. So, I got almost exactly the same times
(one or two seconds shorter out of 9m25s) as with Linus's test1-pre4.
HOWEVER! It used NO swap! Here is the result of 'free' after I
compiled:

total used free shared buffers
cached
Mem: 63548 52600 10948 31772 6176
24868
-/+ buffers/cache: 21556 41992
Swap: 34236 0 34236

test1-pre4, on the other hand, had used 10 Mb of swap by this point.
BTW, I used these settings in both cases:
telomere:~> cat /proc/sys/vm/pagecache
1 30 75
telomere:~> cat /proc/sys/vm/buffermem
1 20 60

I am going to test the actual pre4 now.

Oh, and I have a PPro box, libc6, EIDE (4MB/s media read/write time).
-BenRI

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