commit 79c84c6c7d227c4c949bed8060b66da76d7ecc64
Author: Matthew Dillon <[email protected]>
Date: Tue May 1 20:06:44 2012 -0700
vmstat - Remove the busy_time == 0 hack
Remove a very old busy_time == 0 hack which assumed that a delta busy time
of 0 with transactions present simply meant that a transaction didn't
complete within one second and that the device was 100% busy.
In fact, disk devices are so fast these days (particularly SSDs) that it is
possible for many transactions to complete without causing the busy counter
to tick-over. The device is more likely to be less than 1% busy.
This fixes the '% busy' display for e.g. 'systat -vm 1' to properly report
0% in these situations.
Summary of changes:
usr.bin/systat/vmstat.c | 8 ++++++++
1 files changed, 8 insertions(+), 0 deletions(-)
http://gitweb.dragonflybsd.org/dragonfly.git/commitdiff/79c84c6c7d227c4c949bed8060b66da76d7ecc64
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DragonFly BSD source repository
