We've released a new HPN (High Performance Network) patch for OpenSSH 3.9p1. We've made two major changes - first off we backed out of all the modifications we made to buffer.c. Turns out that it just wasn't necessary once we fixed a nagging bug in channels.c. I also made a minor change to the buffer sizes in the source and sink functions in scp.c Increasing the size of both reduces the number of read/write syscalls 60% for source and 20% for sink. It doesn't give a big performance gain but once this starts moving at GigE speeds most any performance gain is worth exploring. Anyway, the patch can be found at http://www.psc.edu/networking/projects/hpn-ssh We'll have a patch for 4.0 up by Monday at the latest. Any comments, critiques, or suggestions about these patches are welcome and all will be taken seriously and given due consideration.
I really need to get more sleep before I touch a keyboard. I'll take a look at it. I wouldn't be surprised if I screwed it up because I found a typo in it yesterday. I'll have the 4.0 patch out soon as well. After I have someone who has had more sleep to review it. On Mar 29, 2005, at 6:08 AM, Dries Schellekens wrote:> chris rapier wrote: > >> Anyway, the patch can be found at >> http://www.psc.edu/networking/projects/hpn-ssh > > The patch looks to be reverse. > > > Cheers, > > Dries