How to stress test virtual memory system

i would like to stress test memory by puting significant memory pressure on the VM subsystem, causing significant swapping.
Any help would be much appreciated.
Thank you.

Hi,
Also check threads like
BW STRESS TESTING
Steps involved in Stress Testing BW
Eddy
PS. Reward useful answers and earn points yourself

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REP-0065: Virtual Memory System Error REP-0200: Cannot allocate enough mem

HI i am facing this error since a while.
i dont know how to rectify.
For my report I am using like 7 ref cursors from the database to output the data. It’s been a while that I am facing this error.
I have tried many ways by modifying my code, but still getting this error. When I replace the whole code in the RDF itself, then its running fine without any problems.
I just got stucked with this report. I totally ran out of ideas to resolve this error.
if you have any idea about this error please let me know.
i need to do from the database side. dont know wat to do.
please post the solution ASAP, i have to submit . i going mad.
i am using oracle reports builder 10g.(10.1.2.0)

no actually i tried to download and install one of the patch p4505133_10105_WINNT, i am unable to install the other . my DBA assisted installing the patches. but he could error while installing the second one.
do i need to install on the server or my local machine.
i dont know for some dates its working as there are around 48 rows. for other dates whose date is 400 plus its not working. when execute from reports it runs fine.
date is the parameter for my report to fetch.
it displays the data, but when i try to go the last page then it throws this 2 errors:
Re: REP-0065: Virtual Memory System Error REP-0200: Cannot allocate enough . in data model there are 7 plsql block in which i am calling the procedure for each plsql.
i tried to call one by one with main detail plsql, then its working . when i try to call all together. then probllem rises..
i have checked all the data types . everything looks good.
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How to create test database in system (have downloaded mxdb)

how to create test database in system (have downloaded mxdb)...Can someone pls help as I am new to SAP

Hi amit,
the maxdb documentation gives all information which is needed:
Install the software with SDBSETUP:
<a href="http://maxdb.sap.com/currentdoc/4c/da3b3c51bd4b3ae10000000a114084/frameset.htm">Installation</a>
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I want to execute a report via ref cursor which is called from a package on developer 6i. I have face a error.Which is
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Rep 0200: Cann't allocate enough memory cavaa22.

I get the same error. I speed up the virtual memory system of the operating system.

How to stress test

Hi,
Do you have a good idea to do stress test?
I found the blog. But I do not want to pay money...
/people/mike.curl/blog/2006/12/05/how-to-stress-test-bw-the-easy-way
Kind regards,
Masaaki

Hi,
Also check threads like
BW STRESS TESTING
Steps involved in Stress Testing BW
Eddy
PS. Reward useful answers and earn points yourself

How to stress test VC 7.0 applications ?

Hello,
I'm a sap basis guy, our developers team will very soon deploy Visual Composer 7.0 applications on our Portal Production environnement.
I have been asked to to check whether the current portal configuration will be able to handle the additional worload ...
In my opinion, the only way to determine the impact on the portal of the iviews executed on the Visual composer Runtime is to perform a stress test.
I've proposed the Microsoft Web Application Server Tool to our developement team, but I've been answered that this tool can't help measuring user interaction
Apparently, the MWAS tool is just simulating user interaction with a web application by crafting POST and GET HTTP requests. On the other hand, the flash application doesnu2019t care about HTTP requests it is just a Flash Virtual Machine hosted by a single web page.
Unless we can emulate user interaction in the stress test, Ithe results of the tests will be meaningless.
Do you know any other way to measure user interaction and therefore to perform a relevant stress test ?
Thank you
Any help would be highly appreciated.
Best Regards.

I've been answered by Marcel Salein on his blog : ask SAP for a GoLive check

How to mornitor VSS (Virtual Switching System) & Stack (Switch) By Cisco Prime Infrastructure

Dear all,
I have 02 C6504-E with VSS (Virtual Switching System)
and 02 C3750X-24T-L used Stack
How to you Cisco Prime Infrastructure to monitor VSS & Stack tatus?
Thanks.

Virtual Switching technology is the process of combining two standalone distribution switches found in the local distribution layer into a single management point.
The Virtual Switching System functions and appears as a single switch to the wiring closet and the core layer. You can also create Virtual Switching Systems with a pair of standalone switches available in the core layer.
For configuration please check the below link:
http://www.cisco.com/en/US/docs/net_mgmt/ciscoworks_lan_management_solution/4.1/user/guide/configuration/configvss.html#wp1042960

How do I get virtual memory support?

I am trying to run a new version of Parallels (8). When I try to start it, it says virtual machine support is turned off. How do I turn it back on?

I am having exactly the same problem!

How solaris calculate virtual Memory ?

Hi,
I am using Solaris 10 on both sparc and x86 server.
I am still unable to comprehend how solaris calculate Total Virtual Memory.
We can check the Virtual Memory in system by SMC tool and by #swap -s command.
swap -s
total: 6071888k bytes allocated + 1010404k reserved = 7082292k used, 52134560k availableAbove output shows that total virtual memory is = 7082292k used, 52134560k available = 57829 MB
Sun documents says that solaris calculate Virutal Memory by combining the available RAM with total swap space
System swap is 32773 MB
And availabe RAM righ now is 22506
# vmstat 1 3
kthr memory page disk faults cpu
r b w swap free re mf pi po fr de sr s2 -- -- -- in sy cs us sy id
0 0 0 55999408 25906620 579 106 1410 2 2 0 0 69 0 0 0 3919 13684 6331 3 2 95
1 0 0 52134492 23046320 9 56 0 0 0 0 0 4 0 0 0 1391 4097 2257 0 1 99
0 0 0 52134372 23046196 0 6 0 0 0 0 0 5 0 0 0 1511 4367 2474 0 1 99So combining them becomes 55279 MB which is not the same as displaying by SMC and swap -s
Does any body know how solaris exactly calculate the virtual memory which it indicates in SMC and swap -s ?

If you look at the man page it shows for the -s flag:
available The total swap space in
bytes that is currently
available for future reser-
vation and allocation.
That means if swap has been allocated it wont be shown in this total, Solaris has a funny way of dealing with memory, it will only free physical memory when it needs to reuse it. If you want to tell if a system is paging the best way is to use sar with the -g flag e.g
sar -g 10 10
Or iostat etc

How to Increase Virtual memory in Windows XP (32 Bit ) O.S

Hi Team,
Could any one help me , how i can extend virtual memory in Windows Xp Professional sp3 (32 Bit Edition ) . I am able to increase virtual memory in my Laptop ( Lenovo T 61, Windows Xp professional ) up to 8 GB. But in desktop not able to
increase more than 4 GB.
is it any hardware or processor dependency for virtual memory ?
waiting for response ...
Regards, Triyambak

Sir, Follow these steps to Increase the Virtual Memory in XP.
How to increase Virtual Memory?
In Windows XP
1.Click Start, and then click Control Panel.
2.Click Performance and Maintenance, and then click System.
3.On the Advanced tab, under Performance, click Settings.
4.On the Advanced tab, under Virtual memory, click Change.
5.Under Drive [Volume Label], click the drive that contains the paging file that you want to change.
6.Under Paging file size for selected drive, click to Custom size check box. You can enter the amount of memory you would like to reserve for Virtual memory by entering the initial and maximum size.
7.Click Set
When you are prompted to restart the computer, click Yes.
Special Note: You should choose the same amount for the initial size and maximum size. This will Stop your CPU from constantly changing the paging file.
Regards,
MCP | MCTS | MCITP

What's up with my Virtual Memory?

I've got a MacBook Pro 15" 2Ghz Core i7 running the 10.8.4 with all updates and 16gb of ram. I notice a couple of odd things over the course of a multiday session:
- Over a few days of usage launching and quiting most apps but with Mail, Terminal, LaunchBar and Safari running constantly, memory and virtual memory usage grow to the point where I have only a few dozen Mb of ram left and over 12 Gb of Virtual Memory consumed.
- Odder still is never, ever, in any session regardless how long, do my virtual memory statistics show more than 14 hits, not 14%, 14 all during boot time, despite hundreds of thousand of page-ins and lookups, and millions (22 million + this session) page faults.
I've noticed that Safari is the main culprit with memory consumption as it only frees up the bulk of any used if quit and relaunched. Even closing all tabs and windows has little to no affect on memory or virtual memory usage, but I have no idea why lookups once the machine is booted never, ever result in a hit despite a constantly growing number and size of swapfiles. Its almost as if Lion is encrypting the swaps but then doesn't have access to read them though I don't know how that might come about.
Anyone care to offer suggestions as to cause or debugging/troubleshooting tips?
Other notes:
This has been happening at least since 10.7.x.
Aside from apps listed above, other frequent apps are, Adobe Photoshop 5.5.x, Lightroom 5, LaunchBar, and ocassional MS Office 2011 with all updates.
Thanks,
David

About OS X Memory Management and Usage
Using Activity Monitor to read System Memory & determine how much RAM is used
Memory Management in Mac OS X
Performance Guidelines- Memory Management in Mac OS X
A detailed look at memory usage in OS X
Memory Usage Performance Guidelines- About the Virtual Memory System
Understanding top output in the Terminal
The amount of available RAM for applications is the sum of Free RAM and Inactive RAM. This will change as applications are opened and closed or change from active to inactive status. The Swap figure represents an estimate of the total amount of swap space required for VM if used, but does not necessarily indicate the actual size of the existing swap file. If you are really in need of more RAM that would be indicated by how frequently the system uses VM. If you open the Terminal and run the top command at the prompt you will find information reported on Pageins () and Pageouts (). Pageouts () is the important figure. If the value in the parentheses is 0 (zero) then OS X is not making instantaneous use of VM which means you have adequate physical RAM for the system with the applications you have loaded. If the figure in parentheses is running positive and your hard drive is constantly being used (thrashing) then you need more physical RAM.
Adding RAM only makes it possible to run more programs concurrently. It doesn't speed up the computer nor make games run faster. What it can do is prevent the system from having to use disk-based VM when it runs out of RAM because you are trying to run too many applications concurrently or using applications that are extremely RAM dependent. It will improve the performance of applications that run mostly in RAM or when loading programs.

Any info on stress testing Creator2 application ?

Hi All,
I am still working on a shopping cart application built with Creator2. I am looking for help / information on how to stress test the application once it is running as expected.
Also could we have a guide for Creator 2 built applications with information on what deployment criteria affect an applications performance. ie web server memory, and how to analize this for better application performance?
Thanks.
Jim Ascroft

Answers to these questions are generally dependent on the application server to which you will be deploying, as each application server has its own means of tuning for performance.
For tuning Sun's App Server 8, see the online Performance Tuning Manual, at http://docs.sun.com/app/docs/doc/819-2561
// Gregory

Lenovo G50-70 Skips Stress Test on Intel HD graphics then shows warning

I need Help ON This one, how am i going to deal with this.

hi andreyzhitnikov,
If you're not getting any artifacts on the screen (eg. when playing a video, a game, or any graphics-intensive application) then the error that you're getting is likely a false positive.
- Sample image
To verify, run OCCT or Intel Burn Test and run a GPU Stress Test / Video Memory Test.
Guide:
How to Test NVIDIA/AMD Performance with OCCT (works also on Intel GPU)
Regards
Did someone help you today? Press the star on the left to thank them with a Kudo!
If you find a post helpful and it answers your question, please mark it as an "Accepted Solution"! This will help the rest of the Community with similar issues identify the verified solution and benefit from it.
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G50-70 intel hd graphics stress test warning

Hello.I resently bought lenovo G50-70.After running comprehensive hardware test I got warning on intel hd graphics stress test.What does it mean?
Thanks

hi andreyzhitnikov,
If you're not getting any artifacts on the screen (eg. when playing a video, a game, or any graphics-intensive application) then the error that you're getting is likely a false positive.
- Sample image
To verify, run OCCT or Intel Burn Test and run a GPU Stress Test / Video Memory Test.
Guide:
How to Test NVIDIA/AMD Performance with OCCT (works also on Intel GPU)
Regards
Did someone help you today? Press the star on the left to thank them with a Kudo!
If you find a post helpful and it answers your question, please mark it as an "Accepted Solution"! This will help the rest of the Community with similar issues identify the verified solution and benefit from it.
Follow @LenovoForums on Twitter!

Set up virtual memory for 6gb ram

hi ,
can any one please tell me how to set the virtual memory custom size for 6GB ram?

Frederic,
Those rules of thumb stem from the era when is was common to have 2 or 4 GB of memory, but with memory in the range of 12, 16 or 24 GB, I think we can forget about that rule of thumb. I would use a rule of thumb that the sum of installed memory and pagefile need not exceed 32 GB. With disk space being so cheap there is no reason to skimp on pagefile size, but with increasing amounts of installed memory, the pagefile will be used less and less. The general rule that Windows applies would result in a pagefile of 36 GB on a 24 GB system and that is overdone IMO. On a 48 GB system, Windows suggests a whopping 72 GB pagefile! That makes no sense. So, on a 48 GB system even a 4 GB pagefile would likely not be used at all, but Windows requires one to be present, otherwise it will create one for you on C, which is dynamically allocated and that is worse than a fixed, static pagefile as the first file on another disk.
Of course, if you make it a habit to switch between AE, PR, Maya and other applications a lot and work on files with large pixel dimensions, the sum total can easily be increased to 48 GB.
My suggestion is to use common sense.

How to stress test virtual memory system

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