Javaw process using high memory

Hello All,
I am new to Java Development.
I would like to know :-
1 what service is associated with javaw process.
2 javaw process shoots up to 360+ meg,
essentially using all of the memory. Restarting the machine is our only remedy.
I am using a 2 cpu Dell P2450 running W2k sp3.
I would appretiate your guidence to resolve the issue.
Thanks in Advance.
Regards
SVK

hi raghu
Yeah it much known fact that Essbase app runs by ESSSVr process but its ridiculous if complete application runs on single ESSSVR process
so to look on it go to Essbase server logs and there thread number or agent number
when ever there is calc script or report script or anything you on application there is thread comes out for each single operation ..which is hidden
you can see that in task manager
to go task manager in windows (not sure about unix) options> view> clik on PID it will show you thread numbers and you can kill that particular thread to stop comsuming ur server memory
but i do advise unless there is no process going on better stop application and restart and try killing those agents
hope this helps

Similar Messages

My application is using high memory

Hi All,
i create application which is using high memory!
When i start application it using only 85Mb Memory but when i open any form or Report it using more Memory n its going high and high if i close Report till memory is not going down even i close all form it not going down!
Any One Can Help About this?
Hitesh Patel

Hi,
Testing with Visual Studio Test Manager (MTM)forum discusses Microsoft Test Management issues. Your issue is out of support range of this forum. USCGJEN72 provided some useful suggestions.
I agreed that we can check the task managers to get more information. Sometimes the computer performance may affect the Memory usage, so you can restart your PC and only start the application to release more resource.
In order to resolve this issue, if you are working with Windows Forms app, I suggest you to post your issue in a new thread on Windows Forms forum:
http://social.msdn.microsoft.com/Forums/windows/en-US/home?category=windowsforms Winform experts may provide you some solutions.
Thanks,
We are trying to better understand customer views on social support experience, so your participation in this interview project would be greatly appreciated if you have time. Thanks for helping make community forums a great place.
Click
HERE to participate the survey.

Which Process using high Swap

Dear All,
Any specific command or steps to find which process consuming lot of swap space and there is any specific step to reduce the usage without kill the actual process.
Regards,
Siva

prstat -s size
..gives you a list of processes sorted on their memory consumption. The swap and memory are tightly connected in a virtual-memory structure, which means that i don't think you can tell exactly how much of a process which is swapped out and how much which is in RAM.
The RSS column of the prstat output shows how much which is residential, that part is for sure in the RAM, the rest may or may not be swapped out.
You can not reduce the amount of swap used by a process (i'ld guess that you probably could force it into the RAM, but thats probably not what you want), but if swap size is an issue, you can add space to the swap easily by using swap -a on a file or device.
.7/M.

Oracle 9i 9.2.0.1.0 using high memory!

Hi everyone,
Im new to oracle, need some help here.
Currently i got a Solaris 8 Sparc node, installed with Oracle 9i Database. It seems to be using 98% of the memory, from the top command, can only see 53MB free out of 3GB physical memory. Any good explanation on this??
# prstat
PID USERNAME SIZE RSS STATE PRI NICE TIME CPU PROCESS/NLWP
327 daemon 6528K 2808K sleep 58 0 7:04.38 0.2% snmpd/4
388 oracle 2034M 1991M sleep 58 0 1:24.57 0.0% oracle/1
416 root 77M 37M sleep 58 0 0:00.07 0.0% java/53
390 oracle 1787M 1745M sleep 58 0 0:59.02 0.0% oracle/1
497 root 84M 37M sleep 40 0 0:00.00 0.0% java/24
72 root 3768K 2464K sleep 54 0 0:00.00 0.0% picld/10
1530 root 336K 248K sleep 45 0 0:00.00 0.0% sh/1
1545 root 1968K 1664K cpu0 58 0 0:00.00 0.0% prstat/1
1523 qfazram 2488K 1952K sleep 48 0 0:00.00 0.0% bash/1
397 oracle 1785M 1740M sleep 59 0 0:00.02 0.0% oracle/1
395 oracle 1785M 1740M sleep 59 0 0:00.02 0.0% oracle/1
392 oracle 1786M 1741M sleep 58 0 0:34.11 0.0% oracle/1
386 oracle 1785M 1742M sleep 59 0 0:00.17 0.0% oracle/1
384 oracle 1785M 1742M sleep 59 0 0:00.00 0.0% oracle/1
382 oracle 1785M 1743M sleep 58 0 0:06.16 0.0% oracle/1
380 oracle 1788M 1741M sleep 59 0 0:08.56 0.0% oracle/16
378 oracle 1792M 1741M sleep 59 0 0:03.10 0.0% oracle/16
376 oracle 1790M 1741M sleep 59 0 0:00.27 0.0% oracle/39
374 oracle 1786M 1741M sleep 59 0 0:00.12 0.0% oracle/1
410 oracle 15M 2992K sleep 58 0 0:15.53 0.0% tnslsnr/1
# prstat -t
NPROC USERNAME SIZE RSS MEMORY TIME CPU
45 root 854M 400M 1.8% 0:11.14 0.2%
13 oracle 21G 21G 98% 3:33.25 0.2%
2 daemon 9096K 3976K 0.0% 7:04.38 0.0%
1 echisoo 1096K 992K 0.0% 0:00.00 0.0%
1 qfazram 2488K 1952K 0.0% 0:00.00 0.0%
# vmstat
procs memory page disk faults cpu
r b w swap free re mf pi po fr de sr m0 m1 m2 m3 in sy cs us sy id
0 0 0 3963344 165960 14 43 1 2 2 0 0 0 0 0 1 85 203 56 0 2 98
# prstat -t
NPROC USERNAME SIZE RSS MEMORY TIME CPU
45 root 854M 400M 1.8% 0:11.14 0.2%
13 oracle 21G 21G 98% 3:33.25 0.2%
2 daemon 9096K 3976K 0.0% 7:04.38 0.0%
1 echisoo 1096K 992K 0.0% 0:00.00 0.0%
1 qfazram 2488K 1952K 0.0% 0:00.00 0.0%
# vmstat
procs memory page disk faults cpu
r b w swap free re mf pi po fr de sr m0 m1 m2 m3 in sy cs us sy id
0 0 0 3963344 165960 14 43 1 2 2 0 0 0 0 0 1 85 203 56 0 2 98
#top
Memory: 3072M phys mem, 46M free mem, 4005M total swap, 3465M free swap

are you having performance problems?
are you getting a lot of swapping activity?
In itself oracle useing 98% of memory is not a problem if the system is running OK, you may have issues as more connections are made and you start seeing memeory swapping. Also if you are running other application processes on the server you may have issues. Can you post the results from sybrands query.
Remember you can't save memory for later so as long as you don't run out of physical memory and start swapping to disk 98% usage is OK.

Java WEB AS - Is it possible to prevent a single process using all memory?

Hi all,
We have a SAP PI 7.0 installation and we have encountered issues with Java mappings utilizing all available memory on the Java stack and causing the server to slow and eventually crash. The original issue was caused by a poorly coded map, but as this is a large installation we want to protect ourselves against any other poor coding that may be on the system or introduced later.
Are there any configuration options within the WEB AS whereby we can either limit the amount of memory available to the execution of any one mapping, or that will enable the server to stop processing once a set limit is reached?
Any help will be much appreciated.
Regards,
- Ian

The only thing that comes to my mind is to use several server processes for the Java instance and limit the max heap size. Once that size is reached, the thread will end with OutOfMemory error but since you have several server processes others threads can continue to work.
Markus

Jlaunch process using High CPU, while uploading the files in XI system

Hi,
we are facing jlaunch high cpu usage problems, while uploading the files of more than 25MB, in XI system. PIAFUSER is running on PRIV mode and huge java core dumps and heapdumps are getting generated in server0 node
error message-> - Out of memory situations running XI
Exception thrown [Fri Sep 30 13:57:27,855]:Exception thrown by application running in JCo Server
java.lang.Exception: java.lang.OutOfMemoryError
     at com.sap.engine.services.rfcengine.RFCDefaultRequestHandler.handleRequest(RFCDefaultRequestHandler.java:237)
     at com.sap.engine.services.rfcengine.RFCJCOServer$J2EEApplicationRunnable.run(RFCJCOServer.java:254)
     at com.sap.engine.core.thread.impl3.ActionObject.run(ActionObject.java:37)
     at java.security.AccessController.doPrivileged(AccessController.java:219)
     at com.sap.engine.core.thread.impl3.SingleThread.execute(SingleThread.java:104)
     at com.sap.engine.core.thread.impl3.SingleThread.run(SingleThread.java:176)
first , we tested in Quality system, where,we are getting same problems as well.
SAP Note 146289 - Parameter Recommendations for 64-Bit
increased em/intial_size_MB from 512MB to 2 GB and em/global_area_MB value from 96 to 256
SAP Note 723909 - Java VM settings for J2EE 6.40/7.0
we added some jvm parameters in confitool
-Djava.awt.headless=true
-XX:+UseParNewGC
-XX:+PrintGCTimeStamps
Present JVM values in XQ1 system..
Xmx value 3072
xms value 2048
xmn value 1000
we have tested JCo RFC's AI_DIRECTORY_JCOSERVER and AI_RUNTIME_JCOSERVER , connection test was OK.
We increased parameter com.sap.aii.ib.client.jnlp.j2se.maxheapsize from 512m to 800m
Please advice me.. how to proceed..
regards,
balaram

Hi Balaram,
Kindly review below note, Hope it suits.
716927 - Overview of AIX JVM for NetWeaver 2004 and 7.0 (2004s).
Regards,
Mani

Unabel to processes application with high memory image

Hello every one
In one of my application i am loading 8mb image into 2d picture control and i am doing some operations on it .
This is working perfectly but when i am using high memory image like 30mb the performance i.e in terms of speed got slowed down .
So how to increase the speed of the application

Nagaa,
When you write "mb" do you mean megabytes? The typical usage in English is MB. Lower case letters technically would refer to millibits which of course does not make any sense.
A 30 MB image, assuming 4 bytes per pixel, is 7.5 megapixels. In a square image it would be >2700 pixels on a side. Unless your picture control is that large - which is larger than most screens - the data has to be reduced to the number of pixels in the control. LabVIEW or the OS or both will do those reductions, but you have no control over how much time it will take.
The other thing which can slow processing is creation of extra data copies in your operations.
Without seeing your VI, I cannot make specific recommendations. In general:1. Make the image size match the picture control size and 2. Avoid extra data copies.
Lynn

"Installer" high memory usage

Hey Guys, I been having problems with my mac. I'm running 10.8.5 on my 2008 Power mac tower and recently I have been having problems with my mac
going real slow. I opened Activity Monitor and Noticed something called "Installer" and it was using 90% of my memory and the only thing I can do is quit the process. Does anyone know why this is happening?

I ran EtreCheck and i'll post my results. I will add more ram after I fix the problem, and adding an SSD is a good option. I thought about it but
I was holding off because I was thinking of buying a new computer. I will try to keep my sysstem drive clean in the future. After Linc Davis posted about the Trojan i'm planning of doing that. I have a cloned mac drive, I updated the other day using SuperDuper.
My EtreCheck info
Problem description:
“Installer” app is running using High Memory Usage.
EtreCheck version: 2.0.11 (98)
Report generated November 14, 2014 2:06:44 PM PST
Hardware Information: ℹ️
Mac Pro (Early 2008) (Verified)
Mac Pro - model: MacPro3,1
2 2.8 GHz Quad-Core Intel Xeon CPU: 8-core
8 GB RAM
DIMM Riser B/DIMM 1
empty empty empty empty
DIMM Riser B/DIMM 2
empty empty empty empty
DIMM Riser A/DIMM 1
4 GB DDR2 FB-DIMM 800 MHz ok
DIMM Riser A/DIMM 2
4 GB DDR2 FB-DIMM 800 MHz ok
DIMM Riser B/DIMM 3
empty empty empty empty
DIMM Riser B/DIMM 4
empty empty empty empty
DIMM Riser A/DIMM 3
empty empty empty empty
DIMM Riser A/DIMM 4
empty empty empty empty
Bluetooth: Old - Handoff/Airdrop2 not supported
Video Information: ℹ️
ATI Radeon HD 2600 - VRAM: 256 MB
HP 2509 1920 x 1080 @ 60 Hz
System Software: ℹ️
OS X 10.8.5 (12F45) - Uptime: 0:11:2
Disk Information: ℹ️
WDC WD1001FALS-00J7B0 disk0 : (1 TB)
S.M.A.R.T. Status: Verified
disk0s1 (disk0s1) <not mounted> : 210 MB
Hard Drive (disk0s2) / [Startup]: 999.35 GB (456.96 GB free)
Recovery HD (disk0s3) <not mounted> [Recovery]: 650 MB
WDC WD10EACS-00D6B0 disk1 : (1 TB)
S.M.A.R.T. Status: Verified
disk1s1 (disk1s1) <not mounted> : 210 MB
Media Drive (disk1s2) /Volumes/Media Drive : 999.86 GB (30.09 GB free)
WDC WD3200AAJS-41VWA0 disk2 : (320.07 GB)
S.M.A.R.T. Status: Verified
disk2s1 (disk2s1) <not mounted> : 210 MB
Archive Drive (disk2s2) /Volumes/Archive Drive : 319.73 GB (58.25 GB free)
USB Information: ℹ️
Apple, Inc. Keyboard Hub
Apple, Inc Apple Keyboard
Seagate Backup+ Desk 3 TB
S.M.A.R.T. Status: Verified
disk4s1 (disk4s1) <not mounted> : 315 MB
Seagate (disk4s2) /Volumes/Seagate : 3.00 TB (2.41 TB free)
Apple Inc. Bluetooth USB Host Controller
Tablet PTK-640
Firewire Information: ℹ️
WD Passport III 800mbit - 800mbit max
S.M.A.R.T. Status: Verified
disk5s1 (disk5s1) <not mounted> : 32 KB
GRPHX Drive 2 (disk5s3) /Volumes/GRPHX Drive 2 : 499.97 GB (126.10 GB free)
Gatekeeper: ℹ️
Mac App Store and identified developers
Kernel Extensions: ℹ️
/System/Library/Extensions
[loaded] at.obdev.nke.LittleSnitch (4216 - SDK 10.8) Support
[loaded] com.sophos.kext.sav (9.2.0 - SDK 10.8) Support
[loaded] com.sophos.nke.swi (9.2.0 - SDK 10.8) Support
[not loaded] com.wacom.kext.wacomtablet (6.3.7 - SDK 10.8) Support
Problem System Launch Agents: ℹ️
[failed] com.apple.accountsd.plist
[failed] com.apple.coreservices.appleid.authentication.plist
Launch Agents: ℹ️
[running] at.obdev.LittleSnitchUIAgent.plist Support
[not loaded] com.adobe.AAM.Updater-1.0.plist Support
[running] com.bjango.istatmenusagent.plist Support
[running] com.bjango.istatmenusnotifications.plist Support
[running] com.extensis.FMCore.plist Support
[running] com.sophos.uiserver.plist Support
[running] com.wacom.wacomtablet.plist Support
Launch Daemons: ℹ️
[running] at.obdev.littlesnitchd.plist Support
[loaded] com.adobe.fpsaud.plist Support
[invalid?] com.adobe.SwitchBoard.plist Support
[running] com.bjango.istatmenusdaemon.plist Support
[running] com.crashplan.engine.plist Support
[loaded] com.microsoft.office.licensing.helper.plist Support
[loaded] com.quark.quarkupdate.plist Support
[running] com.sophos.common.servicemanager.plist Support
User Launch Agents: ℹ️
[loaded] com.adobe.AAM.Updater-1.0.plist Support
[running] com.genieo.completer.download.plist Support
[loaded] com.genieo.completer.update.plist Support
[loaded] com.google.keystone.agent.plist Support
[loaded] com.redgiantsoftware.updater.plist Support
[running] com.spotify.webhelper.plist Support
[loaded] com.valvesoftware.steamclean.plist Support
User Login Items: ℹ️
iTunesHelper Application (/Applications/iTunes.app/Contents/MacOS/iTunesHelper.app)
Dropbox Application (/Applications/Dropbox.app)
CrashPlan menu bar UNKNOWN (missing value)
Spotify Application (/Applications/Spotify.app)
CrashPlan menu bar Application (/Applications/CrashPlan.app/Contents/Helpers/CrashPlan menu bar.app)
Internet Plug-ins: ℹ️
AdobeAAMDetect: Version: AdobeAAMDetect 1.0.0.0 - SDK 10.6 Support
FlashPlayer-10.6: Version: 15.0.0.223 - SDK 10.6 Support
QuickTime Plugin: Version: 7.7.1
Flash Player: Version: 15.0.0.223 - SDK 10.6 Support
AdobePDFViewer: Version: 10.1.1 Support
WacomNetscape: Version: 2.1.0-1 - SDK 10.8 Support
SharePointBrowserPlugin: Version: 14.0.0 Support
WacomTabletPlugin: Version: WacomTabletPlugin 2.1.0.2 Support
JavaAppletPlugin: Version: 14.9.0 - SDK 10.7 Check version
Safari Extensions: ℹ️
1Password
Searchme
Slick Savings
Amazon Shopping Assistant
Ebay Shopping Assistant
3rd Party Preference Panes: ℹ️
Flash Player Support
Quark Update Preferences Support
WacomTablet Support
Time Machine: ℹ️
Time Machine not configured!
Top Processes by CPU: ℹ️
      46% Installer
      1% WindowServer
      1% SystemUIServer
      1% Google Chrome
      1% ps
Top Processes by Memory: ℹ️
5.43 GB Installer
198 MB Mail
163 MB InterCheck
163 MB SophosScanD
137 MB SophosAntiVirus
Virtual Memory Information: ℹ️
7 MB Free RAM
3.95 GB Active RAM
3.95 GB Inactive RAM
676 MB Wired RAM
488 MB Page-ins
309 MB Page-outs

MS Excel 2010 usage High Memory

hi Friends,
we have facing High Memory usage problem as soon as open excel 2010 large size Excel Workbook, we have all branded PC with 2GB physical memory installed on it. Users facing performance issue when they open large size Excel file, we observe that when
users open large size Excel file excel start to uses high memory & Hang a PC, users unable to open others file when open excel sheet.
I have done many changes on computers by searching technet article but useless, We have also checked it by increasing physical memory but still we facing same problem,
Any body has resolution of this problems, then please share a solutions.
Thanks & Regards,
Pardeep

Hi Pardeep,
According to your description, I suppose you are using Excel 2010 32bit version. As far as I know, the Excel 2010 32bit version the max of RAM usage is 2 GB. Thus, if we add more physical memory, 32bit version can't use it. I recommend you use Excel
64bit version to open/edit the large workbook.
The 64-bit version of Excel 2010 is not constrained to 2 GB of RAM like 32-bit applications. Therefore, 64-bit Excel 2010 enables users to create much larger workbooks. 64-bit Windows enables a larger addressable memory capacity, and 64-bit Excel is designed
to take advantage of that capacity. For example, users are able to fill more of the grid with data than was possible in previous versions of Excel. As more RAM is added to the computer, Excel uses that additional memory, allows larger and larger workbooks,
and scales with the amount of RAM available.
More reference:
https://msdn.microsoft.com/en-us/library/office/ff700514(v=office.14).aspx
http://blogs.technet.com/b/the_microsoft_excel_support_team_blog/archive/2012/12/18/top-10-list-of-performance-issues-in-excel-workbooks.aspx
Regards,
George Zhao
TechNet Community Support
It's recommended to download and install
Configuration Analyzer Tool (OffCAT), which is developed by Microsoft Support teams. Once the tool is installed, you can run it at any time to scan for hundreds of known issues in Office
programs.

High memory use when checking downloads folder through browser

High memory use when checking downloads folder through browser.
I have a total of 3 DDR2 Gbytes of ram. Pentium(R) Dual-Core CPU T4500 @ 2.30GHz Win 7 home pr. 64bit. Firefox 27.0 beta
I right click on a file to "open containing folder" from the drop down menu in downloads.
When the folder has been opened, explorer is trying to index the folder (which it never does completely or well after 5 minutes I close the folder and shut down the dllhost process cause laptop is blazing hot) and memory keeps increasing till no more is available.
I checked task manager and see that dllhost is the particular process that is causing the spike in memory usage even after closing the folder I right click and stop the process and memory is restored after awhile.

Hello,
'''Try Firefox Safe Mode''' to see if the problem goes away. Safe Mode is a troubleshooting mode, which disables most add-ons.
''(If you're not using it, switch to the Default theme.)''
* On Windows you can open Firefox 4.0+ in Safe Mode by holding the '''Shift''' key when you open the Firefox desktop or Start menu shortcut.
* On Mac you can open Firefox 4.0+ in Safe Mode by holding the '''option''' key while starting Firefox.
* On Linux you can open Firefox 4.0+ in Safe Mode by quitting Firefox and then going to your Terminal and running: firefox -safe-mode (you may need to specify the Firefox installation path e.g. /usr/lib/firefox)
* Or open the Help menu and click on the '''Restart with Add-ons Disabled...''' menu item while Firefox is running.
[[Image:FirefoxSafeMode|width=520]]
''Once you get the pop-up, just select "'Start in Safe Mode"''
[[Image:Safe Mode Fx 15 - Win]]
'''''If the issue is not present in Firefox Safe Mode''''', your problem is probably caused by an extension, and you need to figure out which one. Please follow the [[Troubleshooting extensions and themes]] article for that.
''To exit the Firefox Safe Mode, just close Firefox and wait a few seconds before opening Firefox for normal use again.''
''When you figure out what's causing your issues, please let us know. It might help other users who have the same problem.''
Thank you.

How to find memory taken by a process using top command

I wanted to know how to find the memory taken by a process using top command. The output of the top command is as follows as an example:
Mem: 13333364k total, 13238904k used, 94460k free, 623640k buffers
Swap: 25165816k total, 112k used, 25165704k free, 4572904k cached
PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
16514 applmgr 25 0 2197m 1.7g 10m S 0.3 13.0 15:20.67 java
30692 crestelo 22 0 2901m 1.4g 9284 S 0.0 11.0 3:03.68 java
30431 crestelo 25 0 2043m 1.4g 161m S 50.9 11.0 79:02.73 java
30869 crestelo 25 0 2860m 1.2g 9292 S 0.0 9.6 7:11.18 java
16655 applmgr 23 0 1934m 1.1g 10m S 0.3 8.9 2:17.49 java
16319 crestelo 19 0 1541m 299m 44m S 0.0 2.3 2:52.11 java
I hope, my question is clear as to how to find the memory taken by a process using top command.
Please revert with the reply to my query.
Regards

Have you tried "man top" to see the documentation for the top command?
How about the following: http://lmgtfy.com/?q=show+memory+with+top+command
The 5th column (VIRT) shows the amount of RAM + swap
The 6th column (RES) shows RAM
The 7th column (SHR) shows memory shared between processes

How to find memory taken by Oracle processes using top command

I wanted to know how to find the memory taken by Oracle processes using top command. The output of the top command is as follows as an example:
Mem: 16436072k total, 16215708k used, 220364k free, 395128k buffers
Swap: 25165816k total, 1168288k used, 23997528k free, 13366520k cached
PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
27281 oraprod 15 0 6705m 1.3g 1.3g S 0.0 8.6 61:44.71 oracle
27383 oraprod 15 0 6702m 1.2g 1.2g S 0.0 7.7 2:22.75 oracle
5199 oraprod 16 0 6745m 1.1g 1.0g S 0.0 6.8 2:51.23 oracle
The different Oracle processes could be Oracle database, Oracle listener, Oracle enterprise manager etc.
I hope, my question is clear as to how to find the memory taken by a process using top command.
Please revert with the reply to my query.
Regards

a short and correct answer would be: you can't.
As oracle uses a fair amount of shared memory, and that shared memory is attached to most of the oracle processes, the same memory appears a number of times.
you should rephrase your question / what is it you want to achieve?
you can ask oracle how much memory is assigned to it, v$sga, v$sgastat, v$process (for PGA). moreover, you as DBA are the one who configured that.
you can look at major an minor faults per process to see what is causing the paging (if you have any).
you can also look at the /proc/pid/statm pseudofilesystem for your oracle pids.

How to see what processes are using my memory?

I recently added more RAM to my system and I always keep Activity Monitor running with the memory usage icon on the Dock to see how much Lion and my programs use.
I noticed that even several CS5 programs running at the same time won't use that much, the program I've seen uses the most is Aperture, using anywhere from 500MB on start to 2.5GB while viewing--not editing--photos.
My questions is, when my system is running normally it uses from a quarter to half the total memory available but just now it's using more than three quarters and it's running not even half programs I use everyday. I quickly added up the memory being used and it's just missing out A LOT. I'm adding a screenshot of Activity Monitor for you to see.
I now that restarting the system (or by using the purge command in Terminal) will free up memory but this really puzzles me and I'd really like to know what's happening--BTW, even though several GB are missing, the computer is nowhere nears slow, at least.
Where are all the other processes using the rest of the memory?
I'm using OS X 10.7.3 Server with 16GB of RAM on an iMac.
Thanks for all your help,
Gustavo.

You will never be able to get those numbers to add up. This topic has come up before. Examples:
Memory used by unknown processes
Where is my memory?
And others. You cannot use the numbers in that display to add up. Even doing top in terminal produces conflicting numbers. Many process are dynamic and may be missed in these displays.
FWIW, here's an apple article on the Activity Monitor memory display:
Using Activity Monitor to read System Memory and determine how much RAM is being used
Editorial: In my opinion I do not recommend always running Activity Monitor (or top). The constant poling and display does have some affect on performance and cpu utilization. That's why it always usually appears near the top of the process list when sorted by percent cpu unless really outweighed by something much bigger.

RAC node process using 25% physical memory

We have a QA server is non-RAC, and production is two-node RAC. We have a migration app that does an INSERT from SELECT over 2 instances. All of the machines have been in successful day-to-day use for several months...our only troublespot seems to be the migration app.
Today we started the app on the QA server and watched the oracle processes using top. They ran normally and finished without any problems.
The same app started on either of the RAC nodes produced process memory errors and died.
As the app ran, there was a process reading the data from the source instance and a process writing to the target instance. We confirmed this by querying the session data. It doesn't matter which of the nodes runs which target process...the result is the same.
The reading process(session) on the source instance seems to run normally. The write process on the target instance, however, begins slowly accumulating memory in about 16M chunks and holds on to them.
We saw this in the RES and in the MEM columns of top. The target process never released any memory, but slowly grabbed it until its
RES was 4GB and the %MEM was about 30%. The app then died with process memory error. This is reproducible over several runs.
( Per Metalink Note 567506.1, the recommended value for Linux 64-bit is 4294967295 ..we have that set. )
There are other oracle processes and instances running on both nodes which do not seem to be affected. The total number of processes on each machine is around 750..much lower than the nprocs ulimit of 63K.
These process are both oracle sessions spawned by the app.
I haven't seen any info on the web or Metalink that matches these symptoms, so I thought I'd try the experts.
Why would the write session continuously use up physical memory, but only on RAC nodes?
We are running RHEL5 on Dell Poweredge 2950 w 16K Physical mem. Version of 10g is R2.0.4.

user12017889 wrote:
The write process on the target instance, however, begins slowly accumulating memory in about 16M chunks and holds on to them.Exactly what process is this? An Oracle server process? Dedicated or shared server?
We saw this in the RES and in the MEM columns of top. The target process never released any memory, but slowly grabbed it until its
RES was 4GB and the %MEM was about 30%. How does the writer process work? Does it use PL/SQL? Does it use bulk processing? How does it call the reader process? Or does the reader process call it? Is this over a database link.
The app then died with process memory error. This is reproducible over several runs.If this is an Oracle server process, then there should be an entry in the alert log of the instance that recorded the crash and includes the name of the trace file generated by the crash.

Using ABAP memory during IDOC processing

What are implications , issues of using ABAP memory in IDOC processing i.e. let say in inbound FM , I create implicit enhancement and I submit a report and return and pass data to this report via abap memory. What are implications ? Is it recommended to use this approach since many number of IDOCs are hitting the system and orders are getting posted.
Please suggest . Thanks in advance.

Hello Jürgen,
Thanks a lot for this OSS Note. So it seems the issue is some kind of a program error that requires source code correction. I am in process of getting this note applied in our SAP environment. Hopefully, it solves my problem. I will definitely keep you posted.
Thanks again for your quick help.
Regards,
EssKay

Javaw process using high memory

Similar Messages

Maybe you are looking for