A while back, around November 2007, there was "some discussion":http://use.perl.org/~Alias/journal/34801 about performance problems with rt.cpan.org to the point that some found it to be almost unusable. I bring this up here because there were some suggestions that perhaps TPF could buy some new hardware. If you scroll to the bottom, you'll see Jesse Vincent jumped in and said he thought the performance wasn't a hardware problem and he could make some changes, but he needed help locating the trouble spots.
I'm happy to report that Jesse's team, led by Ruslan Zakirov, has implemented some changes and performance seems to be much better now. Even better, many of the changes made for "rt.cpan.org":http://rt.cpan.org have filtered into the regular "RT":http://bestpractical.com/rt codebase as of RT 3.6.6. Jesse also told me they are working to publish all the bits of rt.cpan.org that are still
locked away so that the perl community can contribute more actively.
I just wanted to say thanks to Jesse (and Ruslan) for following through on the fixes. I also want to thank Adam and others for pointing out the problems so we could address them. A public service isn't really a service if people can't use it.
Note: I applied some updates after I first published this.