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
figs/SQ_ad04.gif


    Appendix A. Config File Reference