for a college project I installed Fedora 10 (plus cell 3./1 SDK) on my PS3
painless enough with a few helping hints from this forum (thanks all!).
As the PS3 is limited to 256Mb RAM I thought it worth building a custom kernel rather than the stock one provided by the Fedora (via yum update)
I did tweek the custom ps3 kernel config to add support for LVM
I then looked for a benchmark and found the impressive phoronix-test-suite
I just selected the compression tests as they seem the most all round for system performance.
the link shows the custom build gave me some increase in performance but just a little.
stock system is
custom build is
2.6.29-rc1-01047-g905177e with ps3_def_config