socket performance (was Re: Building cygwin1.dll)
Steven Hartland
killing@multiplay.co.uk
Tue Jan 10 18:23:00 GMT 2012
----- Original Message -----
From: "Corinna Vinschen"
> Well, the file I downloaded was a self-extracting zip archive and the
> file it contains is called Windows6.1-KB983528-x64.msu, so I'm fairly
> certain it's the right one for an AMD64 system.
Windows6.1-KB983528-x64.msu is the file I have here too so unless
there's something else a play i.e. running as Administrator UAC rubish?
>> If this bug is effecting your you need to ensure that you make no connections
>> using the machine that could possibly trigger the throughput issues prior to
>> testing. Otherwise you'll be using a tcp stack without scaling.
>
> Sounds tricky. The laptop is a domain member and it's not in the same
> room with me so I'm running this via rdesktop. But that would be fixable.
>
> However, if this issue is the problem, then why is sftp fast and only scp
> and rsync slow? I can reproduce this at will, not only once in the
> right order.
Hmm that would indeed not be explained by the KB iirc there are some
internal differences between the way sftp and scp transfer data.
Do you have a wireshark dump of the two transfers we could examine?
Regards
Steve
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