Compute jvm heap size to host web application
I want to host a web application on a private JVM they offer 32, 64, 128, 256 MB plans.
My web application uses Spring. And I store some objects for every logged in user session.
My question is: How can I profile my web app to see how much heap size it needs so I can choose a plan?, How can I simulate hundreds of users logged in at the same time?
I'm developing the application using Netbeans 6.7 Java 1.6 Tomcat 6.0.18
I test my program performance with JMH. And fail to configure heap size. I wondering why it doesn't work. Questions: Why JMH doesn't accept heap size configs? Does JMH absorb idea heap size settings
In Nvidia's compute prof there is a column called static private mem per work group and the tooltip of it says Size of statically allocated shared memory per block. My application shows that I am
I have read various posts in stackoverflow and I am trying to figure out how to increase my heap size for my JVM. I know that the command -vmargs -Xms256m -Xmx4096m will increase the heap size. But it
When I run maven-jetty-plugin, I run next command: mvn -DMAVEN_OPTS=-Xmx1024m -Xms512m -Djetty.port=8080 jetty:run but when I try to output free heap size with Long heapFreeSize = Runtime.getRuntim
i'm trying to run a jar file but i want to handle jvm max heap size. Size i'm using -Xmx80m param in order to set max head size 80MB. I use top command of my linux OS to monitor my application's mem
What i usually do concerning the jvm heap size is setting the max value really high to avoid the infamous OutOfMemoryException. However, this strategy (or lack of strategy) doesn't seem to be really
Is the maximum heap size of a program in C fixed or if I keep malloc-ing it will at some point start to overflow? Code: while(connectionOK) //connectionOK is the connection with server which might be
I am trying to increase the max heap size for my Eclipse. I have tried specifying in eclipse.ini or through the command line, but are not working. My max heap size has the exact same limit before (ru
I want to be able to execute the .Jar file, and if the heap space isn't set big enough, it should launch a new JVM with the same .Jar file, but set with a bigger heap space, and then close the first J
Does anyone know if the heap size on Android phones is a constant value according to what is set in the OS version or if this is a setting which the phone producers can decide on? Is the heap size pro
How can I reduce the allocated heap of my application,DDMS in Eclipse shows that Heap Size:62.3MB Allocated:44.6MB Used:70% I Also want to know does PNG images allocate a huge size ??Because I delet
My tomcat application crashed due to memory leak. I want to take the heap dump on the crashed system/jvm. Is it possible? I am using windows/tomcat 6 How?
Let's say we have 2 separate applications, a Web Api application and a MVC application both written in .NET 4.5. If you were to host the MVC application in IIS under the host header https://www.mymvc
I just installed Ubuntu 64Bit on my VServer and JRE build 1.7.0_67-b01. If I want to run a java jar-file it says Invalid maximum heap size: -Xmx Error: Could not create the Java Virtual Machine. Erro
The software team in our graduation project asked for increasing the heap size per process in Android. They said that the default is 16MB which isn't sufficient for them. How could I custom the size
Can I check heap usage of a running JVM from the commandline, I mean the actual usage rather than the max amount allocated with Xmx. I need it to be commandline because I don't have access to a window
I increased the java Xmx memory limit when an exception related to insufficient heap space was thrown. However, I am currently experiencing a very long execution time that may be memory related but I
Coming from a java background, one of the things I am used to is telling the JVM what the maximum heap size should be. If the running program tries to swallow more than is allowed, and the garbage col
I'm implementing a web application (Extjs + php). I was trying to enhance the performance especially for retrieving data using Extjs store + php. I tried increasing Java head size.. I see there is a h
How can i bundle a stripped down JVM to run just my application? i would like to strip down the JVM so that i can include it in my application. I know that exe wrappers can do this but what i would li
I'm trying to allocate a large matrix (around 10GB). I'm working on 64 bit machine with a 64 bit JVM. My process then should have 2^64 bytes available and I've set the JVM heap size to be 128G (I have
How can i change the java heap size in tomcat6 running as windows service?
I have an web application that continuously sends 3 ajax requests every second. These ajax request are made to 3 different servlets. To begin with my application runs fine but after some time it throw
My question concerns the extent to which a JVM application can exploit the NUMA layout of a host. I have an Akka application in which actors concurrently process requests by combining incoming data wi
We have recently migrated a large, high demand web application to Tomcat 5.5 from Tomcat 4 and have noticed some peculiar slowdown behavior that appears to be related to JVM pauses. In order to run ou
Possible Duplicate: How can I increase the JVM memory? I am getting the following error: Exception in thread main java.lang.OutOfMemoryError: Java heap space at SQLite.Vm.step(Native Method) at SQ
The compiler book(The dragon book) explains that value types are created on the stack, and reference types are created on the heap. For Java, JVM also contains heap and stack in runtime data area. Ob
In the Sun JVM, is the FileChannel.size() method guaranteed to return the correct size of the file, including any pending updates? In other words, is the following test guaranteed to pass (assuming th
I would like to find out what is the total heap size that is in use at a certain time by a Java process and I have to use jmap. The output of jmap -heap <pid> gives me something like this: Atta
How do I determine the JVM heap size default values?? Note that I'm not interested in setting or modifying its initial, minimum, or maximum size before/while running my application. I just want to kno
I'm attempting to debug a problem with pl/java, a procedural language for PostgreSQL. I'm running this stack on a Linux server. Essentially, each Postgres backend (connection process) must start its o
I need to calculate the minimum or default size of a Composite where it can display all components without clipping. I only seem to find methods to calculate the preferred size of the Composite. This
Instead of using an SVN host like Assembla or Unfuddle, is it possible to use my own web host? Sorry for my ignorance, it's probably a stupid question because I haven't found an answer for it.
I am trying to find out how JVM Heap Size would differ with Object creation . For example if you see my below program , i am creating 10000 String Objects with in a for loop , but still there is no di
I am using -Xmx512m, after out of memory error, I got a heap dump. On loading this heap dump to JAVA VisualVM heap size shown is more than 1 GB. Not able to understand how heap size has grown to 1 GB
I want to allocate around 1GB of heap size, but I can't seem to figure it out. How to do this?
I have JSF web application. I'm using JSF 2.1.9, Hibernate 4.1.4, GlassFish 3.1.2, PrimeFaces 3.4.1. The problem is, used heap size is increasing slowly and after 2-3 days reaches max heap size. Then
In the neo4j-wrapper.conf file I see this: # Java Heap Size: by default the Java heap size is dynamically # calculated based on available system resources. # Uncomment these lines to set specific init
If I start my JVM with -Xms256M and -Xmx512M, at any point of time, can I determine the amount of space specifically allocated to the young and tenured generations of the heap ?
I have the following code in my application which does two things: Parse the file which has 'n' number of data. For each data in the file, there will be two web service calls. public static List<S
I have a java application with the arguments below but the heap is not getting reclaimed even when the total free space is greater than 45% (can see via visual VM). Is there any reason that the JVM wo
Is creating a Repository pattern implementation on top of Linq to Sql a good design for a medium size public faced web application? The app only deals with Sql sever backend and it requires rapid deve
I have an ASP.NET / C# web application that is using a lot of memory. ANTS Memory Profiler and PerfMon both show my Gen 0 heap growing rapidly to about 1 GB in size during Application_Start. I read he
I use java visual VM to monitor my heap and i see that the heap dump is showing bad signs I think that this is why I am running out of memory, How to limit the size (orange area) ?
How do I set Java's min and max heap size through environment variables? I know that the heap sizes can be set when launching java, but I would like to have this adjusted through environment variables
This is quite puzzling, 64-bit OS, 64-bit JDK, 16GB of RAM, and I am unable to use more than 4GB for the heap. Here is how I start the program (my program is in Scala, but it is based on JVM): /usr/li
I have setup elasticsearch and it works great. I've done a few bulk inserts and did a bit of load testing. However, its been idle for a while and I'm not sure why the Heap size doesn't reduce to about
We are facing langOutOfMemory error, when we run an ant script, basically this script runs a lot tests. One solution is to increase heap size using ANT_OPTS variable in environment. But the problem he
So - jnlp files can request heap memory size thusly: <j2se version=1.6+ href=blah max-heap-size=1g/> 1 gigabyte is a lot of memory for a web based app to ask for isn't it, but alas some (
I currently have a host function which includes a loop and a variety of CUBLAS calls. Now having access to CC 3.5 devices, I can write a single much more efficient kernel using dynamic parallelism. Ho