[K12OSN] false processes listed on clients?

Les Mikesell les at futuresource.com
Tue Mar 30 02:50:37 UTC 2004


On Mon, 2004-03-29 at 16:04, Richard Duran wrote:

> Has anyone seen this behavior: SSH used to run mozilla on client, then
> running "ps" on client shows one PID for the shell and multiple PIDs for
> mozilla and java? We see about 8 children for mozilla and 23 for
> java_vm. Are these "real" processes and are the putting an unnecessary
> load on the client?

That sounds like 'old' thread handling where Linux threads
were basically processes that shared their memory map. That's
not as bad as it sounds since Linux is very efficient at
scheduling and switching among processes but it does surprise
you when you look at ps and it restricts the number you can
have more than necessary.  Redhat 9 switched to the native
posix thread library (nptl) which handles threads more like
other systems.

---
  Les Mikesell
   les at futuresource.com






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