From the GC logs, it appears that the heap size is being reduced across young and old generations after sometime. Below are three entries from the logs. {Heap before gc invocations=5: PSYoungGen total 44800K, used 44180K [0x18220000, 0x1b420000, 0x24a20000) eden space 38400K, 100% used [0x18220000,0x1a7a0000,…
Tag: heap-memory
Android: OutOfMemory error and the backstack
the following sheet represents the working flow in the application this question is about. I ran into problems with OutOfMemory Errors, mostly because users were able to switch from activity B to activity D multiple times (They are showing different content for every attempt), without the previous activity be…
java.lang.OutOfMemoryError: Java heap space in allocating array size
I am doing very small program in java using Eclipse Kepler IDE. I am allocating the size of the array at run time using the following statement. so as per my knowledge the java program runs with some of its own heap space like 32 MB. And for my program i think this space is enough. I just given the
Java Virtual Machine Heap Tuning Parameters
What would be the effect of setting only -Xms without setting a -Xmx for eg. java -Xms 2048m ? Does setting a high lower value for -Xms mean lesser Heap Fragmentation? Answer Setting -Xms to the estimated heap requirement of your application will speed up start of your application (of course Xms must be <=…
JVM error when try to allocate more than 128M Xms, without specifying Xmx
I am seeing an JVM issue when I am running my application and I simply to below java commands: Even Xms is set to 128M does not work: Works only when Xms is set to 64M or less: The interesting thing is if I specify Xmx, then it works well. More interesting thing is: All above commands run well on
Android Thread Allocation – growing heap?
Hi everyone out there, i am developing an android application against API 7 at the moment in which i use an activity which need to be restarted. Lets say my activity looks like this: The problem is that the gc doesnt seem to free the fullAnim thread so that the heap is growing by ~100K at every restart –…
java, OutOfMemoryError: Java heap space
This class is designed to determine the language of a text; the user has to enter 4 text in english, danish, italian and latin, and then the text whose language he wants to determine. The console says I use eclipse, in Run Configurations – Arguments I wrote -Xms2g-Xmx3g. I don’t understand where i…
Java collections faster than c++ containers?
I was reading the comments on this answer and I saw this quote. Object instantiation and object-oriented features are blazing fast to use (faster than C++ in many cases) because they’re designed in from the beginning. and Collections are fast. Standard Java beats standard C/C++ in this area, even for mo…
Is it possible to install 64 bit JVM on linux so heap can be larger then 2gb?
It’s a 32 bit Ubuntu OS I want to be able to run with more than 2g of heap Answer No. A 32-bit kernel(and likely 32-bit CPU as well) cannot run a 64-bit executable for the JVM(or any other 64-bit executable/ELF) with your choice of OS and kernel.
Set the heap size of java with Garbage collection enabled
I am running JVM in a ubuntu ec2 instance which runs only solr and nothing else. Now I wanna configure the Heap size of the JVM which is running. The problem is I am not using Sun Jdk I am using the following versions and settings How do I reset the heap size to my requirements.Also I want to enable