Re: [coLinux-users] Re: performance

[gboutwel <gbo...@pr...>]

> Is there a plan of getting rid of that network performance
problem?



Obviously the answer is yes.  If the problem is in/with coLinux
we hope to find it and fix it.  If it's in WinPCAP, TAP-Win32,
PCAP (under linux), or TAP (under linux) then we probably won't
be able to do much about it.



> Maybe it is because of winpcap?



The tests that we have done, show TAP being faster than WinPCAP.
 So there is some problem with WinPCAP, if you can switch to
using TAP you MIGHT see performance improve.



> I would like to use windows machines to compute for our cluster,
that

> does lot of network activity fetching data to be processed
from nfs.

> (later AFS I hope) network performance is definitly a big problem...



Currently the problem is that resources are limited and we have
other things that seem to be a higher priority.  Add to that
we don't have an lot of networking gurus (programmers don't automatically
= network gurus), and we need help from users getting the info
we need to determine where bottlenecks are.



We have found and remoed some bottle necks already.  If you are
using the 0.6.1 release of coLinux you should see an significant
improvement by moving to the recent coLinux snapshots, or moving
to the next release of coLinux when it goes out.



HTH,



George



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