[CentOS] Any way to reduce CPU use of OpenSSH?

Steve Snyder swsnyder at snydernet.net
Thu Dec 11 18:08:31 UTC 2008


The traffic is a combination of tunneled VNC (to Win2K), tunneled Remote 
Desktop (to WinXP), and interactive command line (to Linux) sessions.

For the first two types (VNC & RD), the image data is compressed before 
entering the encrypted tunnel.  For the last traffic type there are a 
lot of small packets, owning to the nature of keyboard activity.

Thanks.


On Thursday 11 December 2008 11:17:13 am Brett Serkez wrote:
> On Thu, Dec 11, 2008 at 10:14 AM, Steve Snyder 
<swsnyder at snydernet.net> wrote:
> > On my CentOS v5.2 server (dual Pentium4) the OpenSSH daemon stands
> > out as being the most CPU-intensive of the applications running,
> > It's used 176 minutes of CPU time in the last 2 days alone.
>
> Can you tell us more about how your system is used, especially in
> regard to ssh?  Are there many logins?  Is X forwarding used?
>
> Brett
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