Re: Performance improvement in OpenSSH 4.0
From: Darren Tucker (dtucker_at_gate.dodgy.net.au)
Date: 05/23/05
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Date: 23 May 2005 12:43:31 GMT
On 2005-05-23, Selvesteen <selvesteen@gmail.com> wrote:
> Jus curious to know that any performance enhancement is incorparated in
> OpenSSH 4.0 and Is there any addtional ways to improve the performance
> to save the time.
Some changes were made to the buffer code so large buffers are utilized
better.
If you're particularly curious you could feed this diff into patch -R,
recompile and see if the performance improvement goes away:
http://www.zip.com.au/~dtucker/tmp/openssh-4.0-buffer.patch
If you haven't already, try speed-testing other ciphers (of the standard
ciphers, arcfour is usually the fastest with blowfish second).
For additional improvements you could try the HPN patch:
http://www.psc.edu/networking/projects/hpn-ssh/
--
Darren Tucker (dtucker at zip.com.au)
GPG key 8FF4FA69 / D9A3 86E9 7EEE AF4B B2D4 37C9 C982 80C7 8FF4 FA69
Good judgement comes with experience. Unfortunately, the experience
usually comes from bad judgement.
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