CPU overloading in WinVNC connecting to Linux box
nicholas "at" keown.com
Wed Mar 2 11:48:01 2005
James, thank for the reply. The task causing the problem is
vncviewer.exe, hogging between 50 and 70% of CPU constantly, causing
overheating of my windows notebook. When I connect to a windows box,
there is no problem.
I thought it could be related to the polling etc on the linux box, and
was wondering if these setting can be altered for a standard fedora 3
install as a test.
Has knowone else had these sorts of problems? I have seen it in other
threads here, but it was blammed on a buggy earlier version.
James Weatherall wrote:
>Check the task manager on your notebook to see what is causing the CPU
>usage. I'd bet it's "kernel" CPU usage (i.e. the CPU usage bar will mostly
>be red), and that it's caused by some sort of problem with your operating
>VNC 4.0 and VNC 3.3.7 are completely different codebases, so a CPU-hogging
>bug in one is unlikely to also exist in the other.
>More importantly, if an application using the CPU can cause your laptop to
>overheat then there is something seriously wrong with its internal
>temperature control, indicating either a power management driver problem or
>a hardware fault.
>Wez @ RealVNC Ltd.
>>From: vnc-list-admin "at" realvnc.com
>>[mailto:vnc-list-admin "at" realvnc.com] On Behalf Of Nicholas Keown
>>Sent: 01 March 2005 23:30
>>To: vnc-list "at" realvnc.com
>>Subject: CPU overloading in WinVNC connecting to Linux box
>>My CPU is maxing out causing overheating on my notebook when
>>to a Linux Fedora Core 3 box. I use this application to connect to
>>windows machines with no issues. I have downloaded and tested the
>>viewers for v4.0 and 3.3.7 and the result is the same - maximum CPU
>>usage on my windows client machine.
>>Can anyone advise a fix for this? Can I configure the
>>vncserver on the
>>linux box to minimise this, and if so what configuration/file is used?
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