I had spent so many hours failing to find a line graph generator for my benchmark results that I just wanted to plug in. I tried quite a few like Google's chart API but it still seemed confusing or not graceful looking, I am clueless.
Examples of benchmark images I wished to make something like are this: http://developer.studivz.net/wp-content/uploads/2009/03/splminheap_rw_mixed.png
What specific applications /web services do you recommend for generating something even close to this? I want something "neat".