|
the statement below is only true for the 2.4.x seriers of kernels.
2.6.x kernels have "true portable posix threads".
C
--
fredo
> -----Original Message-----
> From: Paul Campbell [mailto:Paul.Campbell@orb-data.com]
> Sent: Wednesday, April 25, 2007 12:24 PM
> To: Tivoli NetView Discussions
> Subject: RE: [NV-L] Reporting NetView process threads with NetView ITM
> agent
>
>
> Jane,
>
> This is normal behaviour running a java application under
> Linux and has
> nothing to do with Netview itself as per Sun's (SDN) comments below:
>
> "Under Linux, threads are implemented using the clone() system call.
> This creates a new process which can share memory space, file
> descriptors and signal handlers. This means each thread which Java
> creates appears as a separate process which will show up in
> ps. This is
> normal."
>
> You should see one master pid and several child pids depending on the
> no. of threads.
>
> Cheers
>
> -----Original Message-----
> From: nv-l-bounces@lists.ca.ibm.com
> [mailto:nv-l-bounces@lists.ca.ibm.com] On Behalf Of Jane Curry
> Sent: 25 April 2007 10:50
> To: NetView mailing list
> Subject: [NV-L] Reporting NetView process threads with
> NetView ITM agent
>
> NetView 7.1.5 on SuSE 9 Linux.
> One of the out-of-the-box views that you get with the ITM
> NetView Agent,
> shows the number of threads per process.
>
> I had always thought that some of the NetView processes are
> multi-threaded - largely the Java based ones so, webserver,
> snmpserver,
> servmon, maptreeserver. If you do a ps -ef listing on a SLES 9 system
> then you apparently get lots of processes showing for each of these
> daemons, rather than several threads, whereas on an AIX
> system you tend
> to see a single process. Can anyone clarify this for me???
>
> Going on from that, the ITM NetView agent is reflecting what
> I see in ps
> - lots of processes for these daemons on a SLES 9 system. I'd much
> rather see a single process with several threads. Any suggestions???
>
> Many thanks,
> Jane
>
> --
> Tivoli Certified Consultant & Instructor Skills 1st Limited, 2 Cedar
> Chase, Taplow, Bucks, SL6 0EU, UK.
> Registered in England & Wales, Company No. 3458854.
> Tel: +44 (0)1628 782565
> Copyright (c) 2007 Jane Curry <jane.curry@skills-1st.co.uk>.
> All rights
> reserved.
>
> _______________________________________________
> NV-L mailing list
> NV-L@lists.ca.ibm.com
> Unsubscribe:NV-L-leave@lists.ca.ibm.com
> http://lists.ca.ibm.com/mailman/listinfo/nv-l (Browser access
> limited to
> internal IBM'ers only)
>
> ______________________________________________________________________
> This email has been scanned by the MessageLabs Email Security System.
> For more information please visit http://www.messagelabs.com/email
> ______________________________________________________________________
>
> ______________________________________________________________________
> This email has been scanned by the MessageLabs Email Security System.
> For more information please visit http://www.messagelabs.com/email
> ______________________________________________________________________
>
> _______________________________________________
> NV-L mailing list
> NV-L@lists.ca.ibm.com
> Unsubscribe:NV-L-leave@lists.ca.ibm.com
> http://lists.ca.ibm.com/mailman/listinfo/nv-l (Browser access
> limited to internal IBM'ers only)
>
_______________________________________________
NV-L mailing list
NV-L@lists.ca.ibm.com
Unsubscribe:NV-L-leave@lists.ca.ibm.com
http://lists.ca.ibm.com/mailman/listinfo/nv-l (Browser access limited to
internal IBM'ers only)
|