D.6 NetBSD

These results come from NetBSD Version 1.6.1 (released April 21, 2003). Table D-4 and Figure D-4 summarize the NetBSD results. NetBSD actually performs almost the same as OpenBSD. The best configuration yields about 90 transactions per second. Unfortunately, NetBSD doesn't support coss or aufs. I built a custom kernel with these options:

options         NMBCLUSTERS=32768

options         MAXFILES=8192

options         MSGSSZ=64

options         MSGSEG=512

options         MSGMNB=8192

options         MSGMNI=40

options         MSGTQL=2048

Table D-4. NetBSD benchmarking results

Storage scheme	Filesystem	Mount options	Throughput	Response time	Hit ratio
diskd(1)	UFS	softupdate,noatime,async	90.3	1.49	57.2
diskd(2)	UFS	softupdate	73.5	1.51	55.8
diskd(3)	UFS		60.1	1.48	55.9
ufs(1)	UFS	softupdate,noatime,async	34.9	1.51	56.2
ufs(2)	UFS	softupdate	31.7	1.52	55.5
ufs(3)	UFS		23.6	1.53	55.4

Figure D-4. NetBSD filesystem benchmarking traces