On Tue, Jan 04, 2005 at 07:47:34PM -0000, Paul Baxter wrote: > > I've largely written off SDP going higher than ~300MB/s even with high CPU > utilisation. (Assumptions: License concerns make it unlikely to be one of > the first things openib tackle. Not trivial to implement it with zero copy > or asynchronous I/O on Linux)
SDP synchronous performance is primarily dependent on the system user/kernel space copy performance, so throughput varies widely. I've measured performance in plain synchronous mode over 600 MB/s. Asynch and zero-copy are not trivial, but I've had it working on the 2.4 redhat kernels for over a year, and I'm currently finishing up support for 2.6 kernels. As Roland mentioned the primary gating factor for submitting it to openib is a working Connection Manager which Sean is currently working on. -Libor _______________________________________________ openib-general mailing list [email protected] http://openib.org/mailman/listinfo/openib-general To unsubscribe, please visit http://openib.org/mailman/listinfo/openib-general
