Hi I have been trying to use JbossCache 1.4 SP1, as a caching solution, However I encounter performence issues, I have not been able to write more then 1000 updates per sec, on a single node, and I need a solution able to write as many as 15,000 per sec. I have been written a small test to demonstrate: I have been using MR. Ben Wang's Address and Student classes, along with ../etc/META-INF/replSync-service.xml I have compiled the classes with the aopc compiler. the jboss-aop.xml file I am using is the one under the .../examples/PojoCache/ ....... .
Test setup 2 nodes: Machine 1: JVM 1.5.07 Fedora 5 linux. 1GM memory Machine 2 JVM 1.5.07 Solaris 10 2GM memory Use Case 1: When I run this code unclustered I can update 12,000 times per second Use Case 2: When I run this code in a 2 node cluster the performence drops to something like 900 - 1200 updates per second. Use Case 3: When I run this code with the 's' param, one one node, meaning I have just one writer node, I get the same results: 900 - 1200 updates per second. I have noticed that the CPU usage rises to 80 - 100 % even when the node is not writing / reading the cache. What am I doing wring ? is this the kind of performence I can expect? According to the following link http://wiki.jboss.org/wiki/Wiki.jsp?page=WhatShouldWeExpectOfThePojoCachePerformance I should be just fine, but the results I am getting is very far from it, whay is that ? Thanks Lior my class is: package com.protagonis.cache; //import org.jboss.cache.Fqn; //import org.jboss.cache.PropertyConfigurator; //mport org.jboss.cache.aop.PojoCache; import java.util.*; import javax.naming.*; import javax.transaction.*; import org.jboss.cache.*; import org.jboss.cache.aop.*; import com.protagonis.test.utils.*; public class ManualTestCacheJbossExample { private static final String base_dir = "./etc/resources/configuration/"; private PojoCache tree; public static void main(String[] argv) throws Exception { ManualTestCacheJbossExample ct = new ManualTestCacheJbossExample(); ct.tree = ct.StartCache(); if (argv.length > 1) if (argv[1].equals("s")) { while (true) { Thread.sleep(0, 10); } } /* * Timing.assertElapseTime(ct, "doAspect", new Object[] { new Integer( * argv[0]).intValue(), }, 100000L); */ ct.doAspect(new Integer(argv[0]).intValue()); ct.tree.stop(); } public ManualTestCacheJbossExample() { } public void doAspect(int howMany) { try { Student st1 = new Student(); st1.setSchool("school1"); st1.setName("Name1"); Address adr = new Address(); adr.setCity("city"); adr.setStreet("str"); adr.setZip(1); st1.setAddress(adr); Fqn fqn = Fqn.fromString("a/b"); int count = 1; while (count < howMany) { try { Student std2 = (Student) tree.getObject(fqn); if (std2 == null) { tree.putObject(fqn, st1); continue; } Address adr2 = std2.getAddress(); adr.setZip(adr.getZip() + 1); if (count % 1000 == 0) System.out .println(" Count " + count + " Zip " + adr2.getZip() + 1 + " Name " + std2.getName()); } catch (Exception e) { e.printStackTrace(); } count++; } } catch (Exception e) { e.printStackTrace(); } } public PojoCache StartCache() { try { InitJvm.init(); tree = new PojoCache(); PropertyConfigurator config = new PropertyConfigurator(); // configure config.configure(tree, base_dir + "replSync-service.xml"); tree.setClusterName("Sample-Cluster"); tree.start(); // kick start the cache Thread.sleep(5000); return tree; } catch (Exception e) { e.printStackTrace(); } return null; } } View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=3969769#3969769 Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=3969769 _______________________________________________ jboss-user mailing list jboss-user@lists.jboss.org https://lists.jboss.org/mailman/listinfo/jboss-user
