High Performance SSH/SCP - HPN-SSH

Pádraig Brady P at draigBrady.com
Thu Jul 12 16:18:25 UTC 2007


Nicolas Mailhot wrote:
> Compression is a big win for remote tranfers. For local ones of course
> it's a net loss.

It's not as simple as that.
I also tested across the LAN,
and compression slowed things down there also.

Also notice, I demonstrated that compressing and
transfering random data is faster than zeros.

It's something to do with the twisty maze of
(zlib) buffers and sleeps within ssh I think.

Pádraig.




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