Yes - this is normal. No QlikView server will not use more virtual memory than physical memory (on a non-virtualized server) for it's core features - but maybe for cacheing and non-critical (performance-wise) memory allocations. QVS has certain limits set up in QMC and stored in configuration files to make sure it does not use more physical memory than is available within some safety margins - Working Set: Low and High%. Working Set is what instructs Windows not to swap/page to disk. On a modern high-end server with lots of memory these standard percentages should be tuned. Here comes probably more than you want to know - and probably not terribly easy to understand: An application running under Windows has to commit virtual memory before it can start using any memory.
Python High Virtual Memory Usage
If there is room in physical memory the commited virtual memory will be served by actual physical memory - but strictly under governance of the Windows OS memory management. So if Windows find the need to allocate physical memory to more pressing needs - for instance other needy applications - then parts of what is being used by QlikView Server might be swapped/paged to disk - hence the term virtual memory. So no application can get physical memory unless it does it via virtual memory. Virtual memory is composed of the physical memory in a computer plus the paging files that is allocated. An application has to do memory allocation from it's virtual address space. But it can request to lock virtual memory pages into memory to ensure that they will not be paged to disk. To commit virtual memory is a way for an application to make sure that it has contiguous and accessible memory that will not be reused and not allocated to other purposes.
That is why you will always see 'Max virtual memory commited by QVS'. Virtual memory is something that existed long before Virtual Servers / Virtual Machines and the latter is in fact a separate virtualization from the first one. There will still be physical memory allocated to things that run in a Virtual Server / Virtual Machine - but the HyperVisor running the underlying memory management is the real boss allocating memory across different VM's. No programcode can manipulate memory without it being in memory first - the paged memory is purely handled by the OS and Hypervisor. This article on Microsoft's website might be interesting for those that needs to know more: Google this: Virtual Memory Functions (Windows) and you will get a link to MSDN (Microsoft) for a more elaborate explanation. Hi, Since your server is virtual, what is where is a difference between physical and virtual memory? I'm afraid this question can only be answered by Qlik experts if you and/or your company or client is an official client or partner.
My assumption is that Governace Dashboard may behave differently on physical computer and on VM. If total amount of loaded memory (physical + virtual) equals to total memory needed for loaded applications, this fact would confirm the assumption for me. Wish you luck and please don't forget to update us about your findings. Thanking you in advance. Best regards, Maxim.
Yes - this is normal. No QlikView server will not use more virtual memory than physical memory (on a non-virtualized server) for it's core features - but maybe for cacheing and non-critical (performance-wise) memory allocations. QVS has certain limits set up in QMC and stored in configuration files to make sure it does not use more physical memory than is available within some safety margins - Working Set: Low and High%. Working Set is what instructs Windows not to swap/page to disk. On a modern high-end server with lots of memory these standard percentages should be tuned.
Here comes probably more than you want to know - and probably not terribly easy to understand: An application running under Windows has to commit virtual memory before it can start using any memory. If there is room in physical memory the commited virtual memory will be served by actual physical memory - but strictly under governance of the Windows OS memory management. So if Windows find the need to allocate physical memory to more pressing needs - for instance other needy applications - then parts of what is being used by QlikView Server might be swapped/paged to disk - hence the term virtual memory. So no application can get physical memory unless it does it via virtual memory. Virtual memory is composed of the physical memory in a computer plus the paging files that is allocated.
An application has to do memory allocation from it's virtual address space. But it can request to lock virtual memory pages into memory to ensure that they will not be paged to disk.
To commit virtual memory is a way for an application to make sure that it has contiguous and accessible memory that will not be reused and not allocated to other purposes. That is why you will always see 'Max virtual memory commited by QVS'. Virtual memory is something that existed long before Virtual Servers / Virtual Machines and the latter is in fact a separate virtualization from the first one. There will still be physical memory allocated to things that run in a Virtual Server / Virtual Machine - but the HyperVisor running the underlying memory management is the real boss allocating memory across different VM's. No programcode can manipulate memory without it being in memory first - the paged memory is purely handled by the OS and Hypervisor. This article on Microsoft's website might be interesting for those that needs to know more: Google this: Virtual Memory Functions (Windows) and you will get a link to MSDN (Microsoft) for a more elaborate explanation.
![High Virtual Memory Utilisation High Virtual Memory Utilisation](/uploads/1/2/3/7/123757208/230769113.png)
My Computer:. 6GB of installed memory, normal usage is about 1.5GB. 3 Disk drives in the computer ( OS Raid 0.
2 Data drives ). Windows 7 64-bit Problem:. After a full virus scan of the computer the memory usage jumps up to 3.5GB and stays the until a reboot of the computer.
Looking in Task Manager and Resource Monitor shows the memory in use but the programs running don't add up to anything close to 3.5GB. I tested this with AVG and Avira anti-virus, and it happens with both.
So it would lead me to believe its a Windows issue.
Thanks for your last reply. I have done some further research. I have 3 browsers installed: Internet Explorer, Chrome and Firefox. I found the excessive RAM usage 2+ GB on all three browsers. Therefor, the issue is not the fault of Firefox. My research was with one particular web site. I ran another test opening multiple tabs without that particular web site and experienced no extremely high RAM usage.
It is really a device doctor for your windows system. You can use to help you automatically update your outdated and missing drivers, or you can go to home page to learn how to find and download drivers step by step. Sony pcg k13 driver for mac download.
With four tabs open, the highest was about 250 MB. This in itself is high but nowhere close to 2+ GB. The problem is with one particular web site. I will follow up with them on a resolution. Thanks for all your in depth help.
![High High](/uploads/1/2/3/7/123757208/933786989.jpg)
More than one process is normal for the current Firefox. Multi-process Firefox is codenamed 'e10s'. Try to disable multi-process tabs in Firefox. You can disable multi-process tabs in Firefox by setting the related prefs to false on the 'about:config' page.
'browser.tabs.remote.autostart' = false 'browser.tabs.remote.autostart.2' = false Type 'about:config' in the address bar. If a warning screen comes up, press the 'I Accept the Risk' button. At the top of the screen is a search bar.
Please also use Microsoft Disk Cleanup. Run it then run again and choose Clean System Files, should be run weekly. Defrag monthly.
If have room on your Hard Drive: MICROSOFT VIRTUAL MEMORY You may want to try this: Open the System Folder then Click on left side Advanced System Settings which opens System Properties click the Advanced Tab then click Performance button Settings then the Advanced Tab then Click the Change under Virtual Memory click Custom Size and Change Size to where it says Recommended Size then Click Set and then Click Apply then please Re-boot. Put the MAX number in both fields, min & max System -Advanced System Settings - System Properties -Advanced Tab -Change Virtual Memory -Custom Size -ENTER Recommended Size -Set -Apply- Reboot Please let us know if this solved your issue or if need further assistance. Please also use Microsoft Disk Cleanup. Run it then run again and choose Clean System Files, should be run weekly. Defrag monthly. If have room on your Hard Drive: MICROSOFT VIRTUAL MEMORY You may want to try this: Open the System Folder then Click on left side Advanced System Settings which opens System Properties click the Advanced Tab then click Performance button Settings then the Advanced Tab then Click the Change under Virtual Memory click Custom Size and Change Size to where it says Recommended Size then Click Set and then Click Apply then please Re-boot.
Put the MAX number in both fields, min & max System -Advanced System Settings - System Properties -Advanced Tab -Change Virtual Memory -Custom Size -ENTER Recommended Size -Set -Apply- Reboot Please let us know if this solved your issue or if need further assistance. Hi, sorry to hear. Could be a memory leak. Give it more ram is actually a good thing if have the ram to spare and it is not crashing you or slowing it down. 2 things can try. You can move to the Extended Release Version 52.6.0 ESR.
It will continue to get security updates until May 2018, and you can download and install it from this page:. Note: Legacy Extensions will be deleted or removed in any version update after May 2018. You should make a backup of your Profile before going back and just because:. Or can try: uninstall Firefox. Then Delete the Mozilla Firefox Folders in C: Program Files and C: Program Files(x86) Then restart system.
Then run Windows Disk Cleanup. (Note: This should be Pinned and run Weekly, If never done below expect 10's of gig's(Win10)) Then run it again and click the button that says Cleanup System Files. Note: your Firefox Profile is saved. But you should make a back up before you do:.
Reinstall with Current Release Firefox 58.0.2 with a Full Version Installer. Please let us know if this solved your issue or if need further assistance. Hi, sorry to hear. Could be a memory leak. Give it more ram is actually a good thing if have the ram to spare and it is not crashing you or slowing it down.
2 things can try. You can move to the Extended Release Version 52.6.0 ESR. It will continue to get security updates until May 2018, and you can download and install it from this page:.Note: Legacy Extensions will be deleted or removed in any version update after May 2018.
You should make a backup of your Profile before going back and just because:.Or can try: uninstall Firefox. Then Delete the Mozilla Firefox Folders in C: Program Files and C: Program Files(x86) Then restart system. Then run Windows Disk Cleanup. (Note: This should be Pinned and run Weekly, If never done below expect 10's of gig's(Win10)) Then run it again and click the button that says Cleanup System Files. Note: your Firefox Profile is saved.
But you should make a back up before you do:.Reinstall with Current Release Firefox 58.0.2 with a Full Version Installer.Please let us know if this solved your issue or if need further assistance. Thanks for your last reply. I have done some further research.
I have 3 browsers installed: Internet Explorer, Chrome and Firefox. I found the excessive RAM usage 2+ GB on all three browsers. Therefor, the issue is not the fault of Firefox. My research was with one particular web site. I ran another test opening multiple tabs without that particular web site and experienced no extremely high RAM usage. With four tabs open, the highest was about 250 MB.
This in itself is high but nowhere close to 2+ GB. The problem is with one particular web site. I will follow up with them on a resolution. Thanks for all your in depth help.
Thanks for your last reply. I have done some further research.
I have 3 browsers installed: Internet Explorer, Chrome and Firefox. I found the excessive RAM usage 2+ GB on all three browsers. Therefor, the issue is not the fault of Firefox. My research was with one particular web site. I ran another test opening multiple tabs without that particular web site and experienced no extremely high RAM usage. With four tabs open, the highest was about 250 MB. This in itself is high but nowhere close to 2+ GB.
The problem is with one particular web site. I will follow up with them on a resolution. Thanks for all your in depth help.
I don't see a big change After two minutes, 4X resolution, same scene, same game, 1 GB leaked. Original PID COMMAND%CPU TIME #TH #WQ #POR MEM PURG CMPRS PGRP PPID 47756 citra-qt 90.2 02:00.58 14/1 9 279 481M+ 0B 1023M+ 2 With line change PID COMMAND%CPU TIME #TH #WQ #POR MEM PURG CMPRS PGRP PPID 7011 citra-qt 85.0 02:03.43 14/1 9 294 489M+ 0B 1008M+ 2 I assume that the compressed memory is the leaked memory because when compressed reaches 20GB my system crashes. Native resolution has a bigger active memory usage, but a slower leakage to compressed. PID COMMAND%CPU TIME #TH #WQ #POR MEM PURG CMPRS PGRP PPID 48533 citra-qt 98.1 05:06.83 14/1 9 276 3373M+ 0B 214M 2.
I spent some time, trying to find the issue. Here are my results:. It's not a memory leak.
The memory get freed as soon as the emuThread is destroyed. It's some memory OpenGL uses (probably for textures) and it never gets freed. Using OpenGL Monitor Driver shows exactly that behavior: The first raising is while having the emu-window open. Closing the emu-window doesn't cause the textures to get destroyed.
Only by starting the game again, the emuThread (and therefore all textures) get destroyed.
Hi Friend I face an issue of high virtual memory utilization in CUCM 7.1.5 SU4 and 8.6.2.22900-9. Below are the trouble shooting done for both the versions. 1) Deleated all the unwanted entries in CUCM database like, Unassigned DN / Un-utilized Gateways and Ip phones / unassiged endusers 2) Stopped all the un-used CUCM services 3) Restarted the Tomcat service 4) Rebooted the server physically to release the cashed memory Even after doing the workarounds, the vitual memory is still above 87%. Please help me in grounding the extraordinary usage of Virtual memory in CUCM server.