http://www.theserverside.com Most recent forum messages en Jive Forums Silver 5.5.30 (www.jivesoftware.com) Sat, 25 May 2013 04:54:13 -0400 http://www.theserverside.com/discussions/thread.tss?thread_id=27587 If i want to test the amount of Memory used by my JVM. .Maybe, the simplest option is to launch the JVM with the parameter '-verbosegc'. You can improve the information of verbosegc in order to show information about the...]]> Thu, 12 Aug 2004 18:16:53 -0400 Thu, 12 Aug 2004 18:16:53 -0400 Thu, 12 Aug 2004 18:16:53 -0400 Aug 12, 2004 Jose Ramon Huerga Ayuso 0 http://www.theserverside.com/discussions/thread.tss?thread_id=27587
1. The OS always allocates contiguous memory space to the JVM
2. When there are more objects created & killed very frequently, the JVM stores them in memory...]]> Fri, 30 Jul 2004 09:48:08 -0400 Fri, 30 Jul 2004 09:48:08 -0400 Fri, 30 Jul 2004 09:48:08 -0400 Jul 30, 2004 Jamil Khan 0 http://www.theserverside.com/discussions/thread.tss?thread_id=27587 Forget top. Use "ps -o..." for using specific field from literally near a 100 fields (linux ps at least).

Doc is not very good about those fields. But you may...]]> Wed, 28 Jul 2004 09:38:36 -0400 Wed, 28 Jul 2004 09:38:36 -0400 Wed, 28 Jul 2004 09:38:36 -0400 Jul 28, 2004 Quartz Quartz 1 http://www.theserverside.com/discussions/thread.tss?thread_id=27587
The following is the top commands output, i am trying to understand what is shown under SIZE & RES. Is RES is the actual memory used by JVM and Size is the Maximum Heap...]]> Tue, 27 Jul 2004 13:43:44 -0400 Tue, 27 Jul 2004 13:43:44 -0400 Tue, 27 Jul 2004 13:43:44 -0400 Jul 27, 2004 Jamil Khan 2 http://www.theserverside.com/discussions/thread.tss?thread_id=27587 the Runtime memory details are those of the java object heap, not the os level process memory usage.

jvm process includes all natively allocated blocs, jit compiled code (a lot), handles (sockets,...]]> Tue, 27 Jul 2004 09:50:54 -0400 Tue, 27 Jul 2004 09:50:54 -0400 Tue, 27 Jul 2004 09:50:54 -0400 Jul 27, 2004 Quartz Quartz 3 http://www.theserverside.com/discussions/thread.tss?thread_id=27587
If you are using the SUN JDK I would suggest taking a look at the -jvmstat package.

Later,
Rob Misek
Mon, 26 Jul 2004 15:18:27 -0400 Mon, 26 Jul 2004 15:18:27 -0400 Mon, 26 Jul 2004 15:18:27 -0400 Jul 26, 2004 Rob Misek 1 http://www.theserverside.com/discussions/thread.tss?thread_id=27587 Option-1

Runtime s_runtime = Runtime.getRuntime ();
Used_memory = s_runtime.totalMemory () -...]]> Mon, 26 Jul 2004 14:20:18 -0400 Mon, 26 Jul 2004 14:20:18 -0400 Mon, 26 Jul 2004 14:20:18 -0400 Jul 26, 2004 Jamil Khan 7