4 ms·
> a terrible buffering algorithm The main difference now it that hpn tweaks the tcp window to function better on high-latency links. > It's able to consistent
by dmm 12y ago
> a terrible buffering algorithm
The main difference now it that hpn tweaks the tcp window to function better on high-latency links.
> It's able to consistently fill 1G ethernet links.
Between two stock Debian sid laptops:
dd if=/dev/zero bs=1048576 count=4096 | ssh <otherhost> dd of=/dev/null
8388608+0 records in
8388608+0 records out
4294967296 bytes (4.3 GB) copied, 37.0848 s, 116 MB/s
That's 90% of the theoretical bandwith, right?
If you're really transferring huge file files across fat WAN links, why not use GridFTP like the supercomputing centers use? They transfer TB daily.
I wouldn't mess with patching openssh, especially with patches for old versions of openssh.