mwcotton wrote: > Whats your disk config? I have found the biggest thing that slows the server > down is wait on i/o . If you got all that extra ram maybe you should look at > configuring a ram drive and copy all your rrd's up there, of course > occasionly rsync them back to the hard disks. I bet the system would fly then.
You can do that by simply increasing your vm.dirty_expire_centisecs and vm.dirty_writeback_centisecs settings. With this settings you can tell Linux to keep filesystem modifications longer in RAM before they will be written to disk. If done right this will decrease the I/O load on your disks leading to better performance. The disadvantage with this approach is that, when data gets written back to disk. You have a lot of data that needs to be written. Which can temporarily block other processes. So sometimes it's better to do the complete opposite and decrease the values. That will lead to more I/O actives overall, but the load will be better spread over time and won't block other processes that much. -------------------- m2f -------------------- Read this topic online here: http://forums.zenoss.com/viewtopic.php?p=37405#37405 -------------------- m2f -------------------- _______________________________________________ zenoss-users mailing list [email protected] http://lists.zenoss.org/mailman/listinfo/zenoss-users
