Using the latest alpha (22789) on CentOS 5.5 (32 bit 2.6.18), and it's been rock solid stable so far. CPU usage is a concern though, as has been mentioned in previous posts. Running 5 torrents of around 5 GB each, with ~20 peers per torrent at around 10 MB/s up/down total was sufficient to push my dedicated server to 80% CPU usage. Usage went down obviously once they started seeding, but during their download, it was very high. Currently at ~25% CPU usage downloading a single 1.54 GB torrent with 1 seed and 1 peer, which seems excessive. Any suggestions on reducing CPU usage or is this a known issue? Settings are at default, other than directories and seed ratio settings. I note that net.low_cpu has been recommended, but when I enabled that, throughput on torrents took a nosedive.