Messages in this thread | | | Date | Tue, 03 Jun 2003 21:40:18 -0700 | From | Nivedita Singhvi <> | Subject | Re: fix TCP roundtrip time update code |
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David Mosberger wrote:
> DaveM> So if your old SpecWEB99 lab tended more to trigger timeout > DaveM> based retransmits on LAN, and your new test network does not, > DaveM> then your new test network will tend to not reproduce the bug > DaveM> regardless of whether the bug is present in the kernel or not > DaveM> :-) > > Is this where I get to plug httperf? It triggered the bug reliably in > less than 10 secs. ;-)
Tarnation!! Ran httperf! Didnt hit it! :(. What were your settings?
I extracted an old debug patch to implement dropping of packets - have a sysctl that controls the rate at which I can drop IP packets, so can also generate any kind of packet loss..So thought I would bang away with netperf using sendfile()/TCP_CORK. Thought it was in that code path. Will be running tests tmrw and the rest of this week on 2.5.70 +- patch. Will see if I can provoke any further hangs, stalls, wackiness of any flavor...
thanks, Nivedita
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