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Small Clanger is alarmed. He sees the musical helicopter breaking up and losing its notes. Tiny Clanger gesticulates and hoots. The iron chicken on its star sees her and flaps over and collects her, scoops her up and carries her back to its star. The Clangers are even more alarmed. They wonder what will become of her. Tiny Clanger is very pleased. She greets the chicken as an old friend and gives it the jewel. They drink tea and chat interstellar small-talk. The chicken goes below and fetches her a small iron hat, with aerial and earpiece. It is their personal radio communicator.


Jul
9
answered SVN customize 403 error message
Jul
8
comment SVN customize 403 error message
A little more information would be useful. What's your server platform? Are you hosting through Apache or svnserve? Where are you expecting this custom error text to be visible?
Jul
7
reviewed Approve suggested edit on ldapadd/ldapmodify: clarifications needed about these comamnds
Jul
7
comment Windows TCP Window Scaling Hitting plateau too early
If the issue is down to a lot of user-space software simply having too low a ceiling on socket buffer allocations, the question then becomes "Is it the job of the OS to intervene in these case? Could it even?". I'll follow if MS have come back with a useful answer.
Jul
4
comment Windows TCP Window Scaling Hitting plateau too early
Thanks. At least in part it's nice to know I'm not just going mad. I've read a few blogs/threads from the XP/2003 days that recommend those registry settings, but they were written before Vista/2008 and I'm pretty sure they're ignored in Vista onwards. I think I actually will raise a ticket with MS about this (wish me luck)
Jul
3
revised Windows TCP Window Scaling Hitting plateau too early
Further captures made available.
Jul
3
comment Windows TCP Window Scaling Hitting plateau too early
Fantasic input; thank you. I am using iperf 2.0.4, I'll experiment with the settings and update my OP with some new caps, too.
Jul
3
revised Windows TCP Window Scaling Hitting plateau too early
Anonymised IPs
Jul
3
comment Windows TCP Window Scaling Hitting plateau too early
@KyleBrandt - I'd probably accept "lol, use linux, nub" as an answer. It seems like the path of least resistance at the moment :)
Jul
3
revised Windows TCP Window Scaling Hitting plateau too early
Added NTttcp results.
Jul
3
comment Windows TCP Window Scaling Hitting plateau too early
@Pat If it helps, Kyle's non-answer has been incredibly helpful. I now have a clearer idea of which buffers are being limited and I feel I'm a little closer to a proper solution as a result. Sometimes questions such as this can be a collaborative effort that, with a bit of judicious editing can become a proper Q and a proper A.
Jul
2
awarded  Good Answer
Jul
2
awarded  Good Question
Jul
1
comment Windows TCP Window Scaling Hitting plateau too early
@GregAskew 6.1.7601.22648 on the Win7SP1 client. 6.3.9600.17088 On the Win8.1 client.
Jul
1
revised Windows TCP Window Scaling Hitting plateau too early
added 725 characters in body
Jul
1
comment Windows TCP Window Scaling Hitting plateau too early
@Matt This was one of the first things I tried. As I understand it the autotuning is purely to do with the RWIN and downstream bandwidth. (This does seem to be similarly restricted, but changing autotune settings had no effect).
Jul
1
comment Windows TCP Window Scaling Hitting plateau too early
@Pat - It does. SVN Commits (via HTTP and HTTPS) and FTP transfers to another system on AWS also exhibit the same limits.
Jun
30
comment Windows TCP Window Scaling Hitting plateau too early
I see what you're getting at, but it doesn't seem to apply. For the sake of it, I ran a 30 minute iperf and the Window still never scaled beyond ~520kb. Something else is limiting the CWND before this aggressive algorithm can show any benefits.
Jun
30
revised Windows TCP Window Scaling Hitting plateau too early
Additional notes of tests.
Jun
30
comment Windows TCP Window Scaling Hitting plateau too early
I've updated my OP with the results of these tests and links to representative capture files.