The following is a demonstration of the NFS client wizard tool, nfswizard.d,
# nfswizard.d
Tracing... Hit Ctrl-C to end.
^C
NFS Client Wizard. 2005 Dec 2 14:59:07 -> 2005 Dec 2 14:59:14
Read: 4591616 bytes (4 Mb)
Write: 0 bytes (0 Mb)
Read: 640 Kb/sec
Write: 0 Kb/sec
NFS I/O events: 166
Avg response time: 8 ms
Max response time: 14 ms
Response times (us):
value ------------- Distribution ------------- count
128 | 0
256 | 1
512 |@@@ 14
1024 |@ 4
2048 |@@@@@@@ 30
4096 |@@@@@ 20
8192 |@@@@@@@@@@@@@@@@@@@@@@@ 97
16384 | 0
Top 25 files accessed (bytes):
PATHNAME BYTES
/net/mars/var/tmp/adm/vold.log 4096
/net/mars/var/tmp/adm/uptime 4096
/net/mars/var/tmp/adm/mail 4096
/net/mars/var/tmp/adm/authlog.5 4096
/net/mars/var/tmp/adm/ftpd 12288
/net/mars/var/tmp/adm/spellhist 16384
/net/mars/var/tmp/adm/messages 16384
/net/mars/var/tmp/adm/utmpx 20480
/net/mars/var/tmp/adm/ftpd.2 20480
/net/mars/var/tmp/adm/ftpd.3 20480
/net/mars/var/tmp/adm/ftpd.1 24576
/net/mars/var/tmp/adm/ftpd.0 24576
/net/mars/var/tmp/adm/lastlog 28672
/net/mars/var/tmp/adm/ipf 61440
/net/mars/var/tmp/adm/loginlog 69632
/net/mars/var/tmp/adm/ipf.4 73728
/net/mars/var/tmp/adm/messages.20040906 81920
/net/mars/var/tmp/adm/ipf.3 102400
/net/mars/var/tmp/adm/ipf.1 110592
/net/mars/var/tmp/adm/ipf.5 114688
/net/mars/var/tmp/adm/ipf.2 114688
/net/mars/var/tmp/adm/ipf.0 122880
/net/mars/var/tmp/adm/route.log 266240
/net/mars/var/tmp/adm/pppd.log 425984
/net/mars/var/tmp/adm/wtmpx 2842624
In the above demonstration, we run nfswizard.d for several seconds then hit
Ctrl-C. The report contains useful information about NFS client activity,
including response time statistics and file access details.
Note: this is measuring activity caused by NFS client processes (which must
be on the same server). It is not examining NFS server processes.