topic JDK 6u25 and 6u26 high memory usage in Alfresco Archive https://connect.hyland.com/t5/alfresco-archive/jdk-6u25-and-6u26-high-memory-usage/m-p/262120#M215250 <HTML><HEAD></HEAD><BODY><SPAN>I've been running 3.4d for quite some time on Centos5.6 and JDK 6u23. Because 6u25 and 6u26 promise higher performance, I tried to upgrade to one of these versions.</SPAN><BR /><SPAN>Strangely, the memory usage skyrockets with both these JDK's. From ~700 MB to &gt; 1GB. Ofcourse with the same configuration:</SPAN><BR /><BR /><PRE class="language-none line-numbers"><CODE>-server -Xss512k -Xms600m -Xmx600m -XX:MaxPermSize=512m -XX:NewSize=300m -XX:ReservedCodeCacheSize=64m -XX:+UseConcMarkSweepGC -XX:+CMSIncrementalMode -XX:CMSInitiatingOccupancyFraction=80<SPAN class="line-numbers-rows"><SPAN>‍</SPAN></SPAN></CODE></PRE><BR /><SPAN>I tried this on x86 and x64 version of Centos + matching JDK. If I return to 6u23, everything is normal again.</SPAN><BR /><SPAN>Anyone any suggestions why this happens and if something cane be done against it?</SPAN></BODY></HTML> Mon, 01 Aug 2011 21:01:30 GMT ebogaard 2011-08-01T21:01:30Z JDK 6u25 and 6u26 high memory usage https://connect.hyland.com/t5/alfresco-archive/jdk-6u25-and-6u26-high-memory-usage/m-p/262120#M215250 I've been running 3.4d for quite some time on Centos5.6 and JDK 6u23. Because 6u25 and 6u26 promise higher performance, I tried to upgrade to one of these versions.Strangely, the memory usage skyrockets with both these JDK's. From ~700 MB to &gt; 1GB. Ofcourse with the same configuration:-server -Xs Mon, 01 Aug 2011 21:01:30 GMT https://connect.hyland.com/t5/alfresco-archive/jdk-6u25-and-6u26-high-memory-usage/m-p/262120#M215250 ebogaard 2011-08-01T21:01:30Z Re: JDK 6u25 and 6u26 high memory usage https://connect.hyland.com/t5/alfresco-archive/jdk-6u25-and-6u26-high-memory-usage/m-p/262121#M215251 <HTML><HEAD></HEAD><BODY><SPAN>Did no one else notice this increase in memory usage?</SPAN><BR /><SPAN>As I said: I tried it on 32 en 64 bit Centos 5.6 and the increase in memory usage is significant. On another Alfresco instance on Windows Server 2008r2 x64 this increase doesn't show.</SPAN></BODY></HTML> Wed, 03 Aug 2011 08:58:35 GMT https://connect.hyland.com/t5/alfresco-archive/jdk-6u25-and-6u26-high-memory-usage/m-p/262121#M215251 ebogaard 2011-08-03T08:58:35Z