This box (Sun v490, Solaris 10, sparc) is dedicated to running OpenNMS. So the JVM & postgres database are running on the system.
Sun sparc JDK 1.6.0_24, 64-bit. JRB dataset contains 35731 files (170267 datasources) and uses ~57GB. I've been running with the JRBs on a compressed zfs dataset on a 20GB ramdisk. The system is stable with between 35k-45k sigops pending. Switched to the ramdisk because too we started to get OutOfMemory crashes from the JVM when it couldn't sync the pending update operations out do disk. Been running with JRobin 1.5.12 & MNIO backend, and there does not appear to be any performance improvement from using MNIO vs NIO vs FILE. (Whether its in ramdisk or on physdisk.) In fact, I'm tempted to think MNIO is slightly *worse* than FILE after watching iostat's for the disk in our case. Ron -----Original Message----- From: Les Mikesell [mailto:lesmikes...@gmail.com] Sent: Tuesday, May 31, 2011 12:30 PM To: opennms-devel@lists.sourceforge.net Subject: Re: [opennms-devel] jrobin file format On 5/31/2011 10:54 AM, Roskens, Ronald wrote: > I can't add more ram to the system. Its already at its capacity limit of 32GB. Are you running other things on the same server or do you have enough jrb data to thresh the OS cache? Also, what java version are you using? I recently noticed a huge speed improvement from switching from a Sun 1.5 to the current stock Centos 1.6 openjdk - not sure exactly why there was such a big difference. -- Les Mikesell lesmikes...@gmail.com ------------------------------------------------------------------------------ Simplify data backup and recovery for your virtual environment with vRanger. Installation's a snap, and flexible recovery options mean your data is safe, secure and there when you need it. Data protection magic? Nope - It's vRanger. Get your free trial download today. http://p.sf.net/sfu/quest-sfdev2dev _______________________________________________ Please read the OpenNMS Mailing List FAQ: http://www.opennms.org/index.php/Mailing_List_FAQ opennms-devel mailing list To *unsubscribe* or change your subscription options, see the bottom of this page: https://lists.sourceforge.net/lists/listinfo/opennms-devel This e-mail message is being sent solely for use by the intended recipient(s) and may contain confidential information. Any unauthorized review, use, disclosure or distribution is prohibited. If you are not the intended recipient, please contact the sender by phone or reply by e-mail, delete the original message and destroy all copies. Thank you. ------------------------------------------------------------------------------ Simplify data backup and recovery for your virtual environment with vRanger. Installation's a snap, and flexible recovery options mean your data is safe, secure and there when you need it. Data protection magic? Nope - It's vRanger. Get your free trial download today. http://p.sf.net/sfu/quest-sfdev2dev _______________________________________________ Please read the OpenNMS Mailing List FAQ: http://www.opennms.org/index.php/Mailing_List_FAQ opennms-devel mailing list To *unsubscribe* or change your subscription options, see the bottom of this page: https://lists.sourceforge.net/lists/listinfo/opennms-devel
