02-01-2012, 01:03 AM
I've got several low usage Joomla sites that are running on what's suppose to be a decent VPS package (Quad Intel® Xeon® CPU E5620 @ 2.40GHz / 2GB ram)
During the day this is a typical test result: http://www.webpagetest.org/result/120131...7e57bd593/
I've setup caching and optimized as best I know how and when I monitor the loads during a test with .top there's nothing that jumps out (i.e. low memory usage, low cpu load averages and I/O .wa have only short peaks in the 5% range).
From this point, how do I figure out whether the slow ttfb is caused by the VPS or the node/network it's on. The one thing that points me to the node is that ttfb improves dramatically (to under a second) during off hours but I'd like to be sure that I'm not missing something.
Thanks for any help.
During the day this is a typical test result: http://www.webpagetest.org/result/120131...7e57bd593/
I've setup caching and optimized as best I know how and when I monitor the loads during a test with .top there's nothing that jumps out (i.e. low memory usage, low cpu load averages and I/O .wa have only short peaks in the 5% range).
From this point, how do I figure out whether the slow ttfb is caused by the VPS or the node/network it's on. The one thing that points me to the node is that ttfb improves dramatically (to under a second) during off hours but I'd like to be sure that I'm not missing something.
Thanks for any help.