topic Re: The function of system main process? in Operating System - HP-UX

The function of system main process?

licong — Fri, 15 Nov 2002 05:58:37 GMT

The function of system main process?
example:
statdaemon???swapper???vhahnd....

Re: The function of system main process?

T G Manikandan — Fri, 15 Nov 2002 06:52:42 GMT

statdaemon

This provides the Nfs status monitor.
The statd runs both on server and client.When there is a problem with the NFS server the statd gets the status and informs the NFS client statd.
This also happens vice versa.

swapper and vhand are the daemons related to the paging/swapping activity.

When there is a little paging in the server due to less memory then the vhand process is active in paging processes.
When there is a huge memory crunch then the swapper swaps the entire process into the virtual memory.

Thanks

Re: The function of system main process?

licong — Fri, 15 Nov 2002 07:27:32 GMT

T G Manikandan
can you give me some doc that
focus on system process function?

Re: The function of system main process?

Dietmar Konermann — Fri, 15 Nov 2002 07:49:25 GMT

The statdaemon wakes up once a second and does some admin tasks, e.g. recalculation of process priorities.

Don't mistake the statdaemon wih rpc.statd. Only the latter one is NFS related.

Best regards...
Dietmar.

Re: The function of system main process?

Kurt Henning — Fri, 22 Nov 2002 18:50:09 GMT

Not to horn in, but does the activation of PRM affect statdaemon?

I have a script that looks for runaway processes and notifies me of any that exceed a preset limit. The statdaemon process, as well as syncer and prm3d, has been showing up in the list lately.

The only recent changes have been activation of PRM and Service Control Manager.

Considering PRM's function, it wouldn't shock me if there was a connection.