Subject: Slow disk performance
To: None <tech-kern@netbsd.org>
From: Jared D. McNeill <jmcneill@invisible.yi.org>
List: tech-kern
Date: 01/03/2001 11:40:56
I hate to be the bringer of bade news.. but I was doing some informal
benchmarks between my K6-3 450 desktop running NetBSD-current and my 486
laptop running FreeBSD 4.2-STABLE and I was suprised to find that the 486
beat the pants off of the desktop in my 'rm -rf' test. The results of my
test are below... anybody know why this is happening?
Jared
K6-3: NetBSD/i386 1.5Q
AMD K6-3 450MHz, 128MB PC100 RAM, 4028MB HDD (PIO mode 4, DMA mode 2)
486: FreeBSD/i386 4.2-STABLE
Intel 486DX/4 75MHz, 16MB RAM, 1160MB HDD (PIO mode ??)
ports.tar.gz from ftp.freebsd.org:/pub/FreeBSD/FreeBSD-current/
on Jan 3, 2001 at appx. 12:50am AST
=====
Command: gunzip ports.tar.gz
K6-3 486
==== ===
real 0m9.725s 2m52.277s
user 0m3.437s 0m48.682s
sys 0m1.205s 0m19.511s
=====
Command: tar -xf ports.tar
K6-3 486
==== ===
real 12m23.204s 17m47.381s
user 0m0.825s 0m16.617s
sys 0m11.061s 4m2.112s
=====
Command: rm -rf ports
K6-3 486
==== ===
real 12m1.133s 9m22.036s
user 0m0.275s 0m7.560s
sys 0m2.175s 1m10.306s