Platform:
Windows Server 2000,
Visual studio 2022,
Oracle OraOleDB driver version 19.1.0.0.20190510
I am using OraOleDB driver to access database. During 24x7 test I observed a memory leak. I used DebugDiag to detect memory leak which suggesting the leak is in the OraOleDB driver.
Is there any fix on memory leak for oracle OraOleDB driver version 19.1.0.0.20190510?
Memory leak detail reported by DebugDiag
Related
System notes:
1. Using Android Studio 1.1.0
2. Using Windows 8.1, 32 bit
3. Using JDK 7
4. 512mb was given to the emulator and Intel HAXM is installed and in use.
Hello!
My Android Studio emulator memory is being stupid. When I try to run an AVD, it does the normal stuff, then gives me this error message:
The memory needed by this VM exceeds the driver limit.
Cannot set up guest memory 'pc.ram': Invalid argument
I fully understand that it is exceeding my PC RAM, however I can't fix this error as I can't find where to lower the memory allowance. Also, 512mb is the recommended amount, so will lowering the allowance have a bad effect?
Any help will be greatly appreciated.
Thanks in advance!
The memory allocated has to be lower or equal to the memory usage you have set during the installation of HAXM. Relaunch the installation and modify it.
This answer belongs to ph0b from: How to fix: "HAX is not working and emulator runs in emulation mode"
I'm looking into virtual memory management with android ndk and was wondering if there is an equivalent to the VirtualAlloc/Free family of functions in the android ndk, and if so, where can I find some docs on them.
Thank you for your time.
On Android, all memory allocations are "virtual", in the sense that the memory is not committed unless it is really accessed. If I remember correctly, VirtualAlloc comes from Windows CE, where the memory per process was artificially limited to 32 MByte (see http://denniskrabbe.wordpress.com/2009/10/09/windows-mobile-heaps-from-the-large-memory-area/). On Android, the limitations are the natural ones of a 32-bit architecture (iOS has recently entered the 64-bit era). There are some limitations on the JVM heap size, but they do not apply to native (NDK) memory (see Maximum native memory that can be allocated to an android app)
In Android, just like any Linux, malloc is optimistic, which means you can encounter out-of-memory after your malloc succeeded, see Does malloc lazily create the backing pages for an allocation on Linux (and other platforms)?. On the other hand, bionic does not provide custom memory allocation hooks as glibc.
I am using Ubuntu 12.10 64bit and latest eclipse.
One minute after I launch the emulator, the memory usage keeps increasing all the way to 1000 MB. can anyone tell me why?
I limited the memory of emulator to 512mb, but didn't help.
Sounds like a memory leak, you should report it to the emulators buglist. Leaks happen when a resource is not closed or deleted during a process's run time.
I've got an application that was compiled without debugging information and I need to check memory leaks. Is there any way to do it in linux like I can do it in solaris with mdb + umem?
Sure. Run it with valgrind (valgrind yourexecutable).
I use this windows API,
http://msdn.microsoft.com/en-us/library/aa366589(v=vs.85).aspx
GlobalMemoryStatusEx to get memory information
my computer total physcial memory is 4096MB ,why the program shows 3.XG
My computer's virtual memory is 3063MB ,but i use program which show 2047MB
my develop enviroment is visual studio 2008
how to modify this problem
thanks
Aren't other programs using your system as well? I suspect the memory you're "missing" is due to the OS itself and whatever other programs you're running. See if having a bunch of other applications open changes the virtual memory size that your program is able to see.
Assuming you are running a 32bit version of windows, then this is a limit of windows itself. See this Microsoft page for the details. By default you will only be able to access 2GB of RAM in a single process. There is a compiler switch in visual studio which will give you access to 3GB. This is the /LARGEADDRESSAWARE switch. Beyond that you just need to upgrade to a 64bit operating system.
By the way, the basic reason why you don't automatically get 4GB of address space is because part of it is reserved for the operating system. Those system calls and references to operating system resources have to live somewhere.