It was here http://www-01.ibm.com/support/docview.wss?uid=swg21373312

You have a native memory issue.

I did include my previous post below.


Marcy 

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-----Original Message-----
From: The IBM z/VM Operating System [mailto:ib...@listserv.uark.edu] On Behalf 
Of Dean, David (I/S)
Sent: Monday, April 26, 2010 7:30 AM
To: IBMVM@LISTSERV.UARK.EDU
Subject: Re: [IBMVM] Linux / Websphere memory creep

I will check on turning off JVM.  Good point.  No I did not see last post; I 
got kicked off the list for a couple of days, somehow, but all is well now.  We 
are getting ready to go live with a large WebSphere environment and this could 
quickly become a real issue.  Please resend me that link.  To the list or my 
email is fine.

Thank you.  david_d...@bcbst.com


-----Original Message-----
From: The IBM z/VM Operating System [mailto:ib...@listserv.uark.edu] On Behalf 
Of Marcy Cortes
Sent: Monday, April 26, 2010 10:12 AM
To: IBMVM@LISTSERV.UARK.EDU
Subject: Re: Linux / Websphere memory creep

Does the creep go away when you stop/start the jvm?
Did you see my response to your previous post?
The link included disusses native memory leaks (or extreme usage) in websphere.
 
---------------------------------- 
We have an app doing that too.

See http://www-01.ibm.com/support/docview.wss?uid=swg21373312 
<http://www-01.ibm.com/support/docview.wss?uid=swg21373312> 

Disabling AIO solves it, but our app can't run in sync mode for its batch. So 
right now it's going back and forth 2x daily.

We have a PMR open with IBM. 

FWIW, it happens on Linux on Intel too with this app (vendor app). It does not 
happen on Windows. So it is Linux specific, not platform specific.

 

Marcy 

"This message may contain confidential and/or privileged information. If you 
are not the addressee or authorized to receive this for the addressee, you must 
not use, copy, disclose, or take any action based on this message or any 
information herein. If you have received this message in error, please advise 
the sender immediately by reply e-mail and delete this message. Thank you for 
your cooperation."

 

________________________________

From: The IBM z/VM Operating System [mailto:ib...@listserv.uark.edu] On Behalf 
Of Dean, David (I/S)
Sent: Monday, April 26, 2010 7:03 AM
To: IBMVM@LISTSERV.UARK.EDU
Subject: [IBMVM] Linux / Websphere memory creep


zLinux 5.4, SUSE 10.2.  Running one instance of WebSphere 7 with 6 profiles / 
JVM instances.  I started with 3 GIG, went to 5GIG, now at 6 GIG, and free 
memory still drops little by little, SWAP eventually begins to grow and finally 
performance goes to heck.  Just like Windows (ouch) you reboot and everything 
is cool for a few more days....
 
I have read and heard the lectures on zLinux taking all you give it, but I need 
it to STOP.  
 
 
Yesterday
 
procs -----------memory---------- ---swap-- -----io---- -system-- -----cpu------
r  b   swpd   free   buff  cache   si   so    bi    bo   in   cs us sy id wa st
0  0      0 140192 273624 1297596    0    0     0     8 2850  241  1  0 99  0  0
0  0      0 139448 273668 1297552    0    0     0     9 2254  249  1  0 99  0  0
0  0      0 139076 273692 1297528    0    0     0     9 2235  245  1  0 99  0  0
 
 
Today
 
 
procs -----------memory---------- ---swap-- -----io---- -system-- -----cpu------
r  b   swpd   free   buff  cache   si   so    bi    bo   in   cs us sy id wa st
0  0      0  46300 292004 1160020    0    0     3    27 1783  269  3  0 94  0  3
0  0      0  46304 292064 1159960    0    0     2    14 2398  257  2  0 97  0  0
0  0      0  45668 292164 1161408    0    0     0    46 1832  287  4  0 94  0  1
0  0      0  45420 292228 1161344    0    0     0    16 2635  269  1  0 97  0  1
 
 
Here is the page info from Perfkit.  DASD page creeps up just as memory.
 
Userid <http://10.30.7.11:81/01BD5EB8/6E72/HE.04.001>     Owned 
<http://10.30.7.11:81/01BD5EB8/6E72/HE.04.010>   Reads 
<http://10.30.7.11:81/01BD5EB8/6E72/HE.04.018>  Write 
<http://10.30.7.11:81/01BD5EB8/6E72/HE.04.024>  Steals 
<http://10.30.7.11:81/01BD5EB8/6E72/HE.04.030>   >2GB> 
<http://10.30.7.11:81/01BD5EB8/6E72/HE.04.038>  X>MS 
<http://10.30.7.11:81/01BD5EB8/6E72/HE.04.044>  MS>X 
<http://10.30.7.11:81/01BD5EB8/6E72/HE.04.049>  X>DS 
<http://10.30.7.11:81/01BD5EB8/6E72/HE.04.054>     WSS 
<http://10.30.7.11:81/01BD5EB8/6E72/HE.04.062>  Resrvd 
<http://10.30.7.11:81/01BD5EB8/6E72/HE.04.066>   R<2GB 
<http://10.30.7.11:81/01BD5EB8/6E72/HE.04.074>   R>2GB 
<http://10.30.7.11:81/01BD5EB8/6E72/HE.04.081>  L<2GB 
<http://10.30.7.11:81/01BD5EB8/6E72/HE.04.087>   L>2GB 
<http://10.30.7.11:81/01BD5EB8/6E72/HE.04.094>   XSTOR 
<http://10.30.7.11:81/01BD5EB8/6E72/HE.04.101>    DASD 
<http://10.30.7.11:81/01BD5EB8/6E72/HE.04.109>    Size 
<http://10.30.7.11:81/01BD5EB8/6E72/HE.04.116>   Users 
<http://10.30.7.11:81/01BD5EB8/6E72/HE.04.122> 
LNX086 <http://10.30.7.11:81/01BD5EB8/6E72/USE.LNX086>        .0   70.2  54.3   
  .0     .0 14.9 67.6 50.1 615164      0  71788 542585     4     40  69580  
1134k  6144M
 
 
Websphere Heap size adjustments have helped somewhat.
 
 
Rob? Barton? 
 
David M. Dean
Information Systems
BlueCross BlueShield Tennnessee
 
 
 

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