I have a D7.0.5 site upgraded all the way from D6 in HostForWeb VPS hosting.
I usually have a max of 10 people online at a time. and the site is slow sometimes.
Recently I had 30 people online at once and the site crawled.
I am trying to work with HFW hosting after reading this article.
http://www.boonex.com/trac/dolphin/wiki/HostingServerSetupRecommendations
Someone suggested ab- Apache Benchmark Performance testing.
Any suggestion will be appreciated.
Thanks