nfsstat:
Server rpc stats:
calls      badcalls   badauth    badclnt    xdrcall
541935     921        0          921        0

Server nfs v2:
null         getattr      setattr      root         lookup       readlink
0         0% 146      67% 0         0% 0         0% 69       31% 0         0%
read         wrcache      write        create       remove       rename
0         0% 0         0% 0         0% 0         0% 0         0% 0         0%
link         symlink      mkdir        rmdir        readdir      fsstat
0         0% 0         0% 0         0% 0         0% 0         0% 1         0%

Server nfs v3:
null         getattr      setattr      lookup       access       readlink
2         0% 433177   79% 350       0% 14861     2% 86391    15% 18        0%
read         write        create       mkdir        symlink      mknod
1775      0% 1624      0% 288       0% 1         0% 0         0% 0         0%
remove       rmdir        rename       link         readdir      readdirplus
2100      0% 1         0% 92        0% 130       0% 1         0% 512       0%
fsstat       fsinfo       pathconf     commit
145       0% 1         0% 0         0% 238       0%

Client rpc stats:
calls      retrans    authrefrsh
0          0          0

Client nfs v4:
null         read         write        commit       open         open_conf
0         0% 0         0% 0         0% 0         0% 0         0% 0         0%
open_noat    open_dgrd    close        setattr      fsinfo       renew
0         0% 0         0% 0         0% 0         0% 0         0% 0         0%
setclntid    confirm      lock         lockt        locku        access
0         0% 0         0% 0         0% 0         0% 0         0% 0         0%
getattr      lookup       lookup_root  remove       rename       link
0         0% 0         0% 0         0% 0         0% 0         0% 0         0%
symlink      create       pathconf     statfs       readlink     readdir
0         0% 0         0% 0         0% 0         0% 0         0% 0         0%
server_caps  delegreturn
0         0% 0         0%
vmstat:
procs -----------memory---------- ---swap-- -----io---- -system-- ----cpu----
 r  b   swpd   free   buff  cache   si   so    bi    bo   in   cs us sy id wa
 1  2      0 411076 190592 154676    0    0     3     4   46   43  0  0 78 21
free:
             total       used       free     shared    buffers     cached
Mem:       1035128     624176     410952          0     190592     154676
-/+ buffers/cache:     278908     756220
Swap:      2441840          0    2441840
uptime:
 02:00:34 up 1 day,  1:49,  1 user,  load average: 1.10, 0.23, 0.07