[OT] Windows 2003 vs Knoppix

[Roger Oberholtzer]

Isn't it possible for some network cards to respond to a ping without
involving the OS? I think the driver must set this up. I do not know
that this is true. It may only be urban legend. But it 'is said' in
these parts. If that is the case, perhaps the Linux driver is using the
card this way, and the Windows one does not.

There are no routers or gateways in between? Travel one direction
through these need not take the same time as travel the other way.



On Tue, 2005-05-10 at 18:08 -0500, Alma J Wetzker wrote:
> Man-wai Chang wrote:
> > pinging from windows 2003 to the server:
> > 
> > C:\Documents and Settings\Administrator>ping server
> > 
> > Pinging server.donkeyware.org [192.168.1.2] with 32 bytes of data:
> > 
> > Reply from 192.168.1.2: bytes=32 time=9ms TTL=64
> > Reply from 192.168.1.2: bytes=32 time=53ms TTL=64
> > Reply from 192.168.1.2: bytes=32 time=78ms TTL=64
> > Reply from 192.168.1.2: bytes=32 time=47ms TTL=64
> > 
> > 
> > ping from knoppix linux to the same server:
> > 
> > root at Knoppix:/ # ping server
> > PING server.donkeyware.org (192.168.1.2) 56(84) bytes of data.
> > 64 bytes from server.donkeyware.org (192.168.1.2): icmp_seq=1 ttl=64
> > time=0.492ms
> > 64 bytes from smtp.donkeyware.org (192.168.1.2): icmp_seq=2 ttl=64
> > time=0.524 ms
> > 64 bytes from news.donkeyware.org (192.168.1.2): icmp_seq=3 ttl=64
> > time=0.549 ms
> > 64 bytes from www.donkeyware.org (192.168.1.2): icmp_seq=4 ttl=64
> > time=0.541 ms
> > 64 bytes from pop.donkeyware.org (192.168.1.2): icmp_seq=5 ttl=64
> > time=0.548 ms
> > 64 bytes from ftp.donkeyware.org (192.168.1.2): icmp_seq=6 ttl=64
> > time=0.538 ms
> > 
> > 0.6 ms vs 20ms. Why is there such a big difference? What the hell was 
> > the Windows 2003 doing behind the scene?
> 
> Be Careful.  I think the MicroSchlock EULA prohibits any type of 
> published benchmarking without written permission from M$. <g>
> 
> You could try using the IP address directly to determine if it is a 
> stack issue or a DNS issue.  I think I remember reading that the 
> overhead is establishing a TCP connection, Once that is up, things are 
> much faster.
> 
>      -- Alma
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