Re: ll_rw_* i/o penalty patch...

Theodore Ts'o (
Mon, 17 Jul 1995 15:02:46 +0200

Date: Wed, 12 Jul 1995 11:52:24 -0700 (PDT)
From: Chad Page <>

This patch, when activated, will penalize any process which does
block i/o to the actual device. This is for high load situations, in
which i/o bound processes will hopefully not be scheduled as much as before.

Out of curiosity, have you tried running "e2fsck -nFtt /dev/XXX" both
before and after this patch? (-n == make no changes, -F flush buffers
for consistent timings, -tt == print timing results).

- Ted