Am Donnerstag den, 31. Januar 2002, um 08:52, schrieb Andrew Gallatin: By poor performnace, I mean that Darwin reads at 12MB/sec over a 2Gb/sec link. Tru64 and FreeBSD can both read at 50MB/sec. (this is from a file warm in the server's cache; no disk I/O). Darwin performs just as well as the competition when its the server... Since network performance triggers my carnivore monitoring software... I'll assume that by '2 Gb/sec' link, one is talking about gigabit ethernet in full duplex mode. How are you measuring your performance. Also what are the hardware details, for example Darwin on a G4 with the internal gigabit ethernet interface; Tru65 or FreeBSD on a ???. Also have you tried ttcp and verified the 50 MB/s is symetrical.