Hi,
I see following 'nfsd' command is using more CPU. Could someone please comment on it's pros and cons of it?
CPU TTY PID USERNAME PRI NI SIZE RES STATE TIME %WCPU %CPU COMMAND
5 ? 16890 root 152 20 34696K 12036K run 57166:48 856.13 854.64 nfsd
OS -- HP-UX
One database is running in the server.
Regards,
Maddy
Is your server an NFS server?
Normally nfsd is the name of the NFS daemon.
The NFS clients can stress it, then it consumes more CPU.
Hi,
Yes this is NFS server.
Regards,
Maddy
The reason why nfsd consumes 850% CPU is that measurement is per CPU core, and it currently uses more than 8 CPU cores. It does that by running more than 8 threads (LWPs).
Unfortunately the HP-UX ps command does not show the process threads (where Linux and Solaris have the -L option for ps).
You can see the NFS statistics:
nfsstat -ns
Further, if you have tpcdump installed, you can see which NFS client is currently accessing:
tcpdump port nfs
Thanks