Slow Performance


hi!

i'm working in time-critical multi processed application made in c# 2.0... time, response time quite (something around 20 milliseconds)... well, it's slow, , we're working on that, trying improve overall performance...

my problem this:

in production environment, 32 core + 64gb ram machine + running os win2003 server x64 sp2,  the application freezes in nondeterministics circunstances... being application real-time one, freezing 20 seconds (sometimes more it) criminal...

during dreadful 20 seconds, threads stop whatever they're doing... after period of time, start work again...

using sniffer found tcp messages arriving our hardware, system (listening tcp ports) didn't received anything... i've analyzed performance counters collected, couldn't find strange (only freezing time in application, and, consequently, in disk activity, because application wasn't logging anything)...

that no other applications running on machine... so, don't know more have check...

do have idea, or suggestion how diagnose problem?

i wish you could me in search find hapenning...

this part of app's log:

[05/05/2009 15:10:36.882] (440) trace   thread id: 440 [message sent (fixapplication.sendmessage)]

??? nothing happening here ???

[05/05/2009 15:10:56.194] (748) trace   thread id: 748 [(fixapplication.fromapp)]

thank in advance...

alexandre eduardo de oliveira

check memory pressure on machine, may running garbage collection issues. check article http://msdn.microsoft.com/en-us/library/cc713687.aspx , http://channel9.msdn.com/shows/arcast.tv/arcasttv-steve-michelotti-of-eimagination-on-high-performance-web-solutions/.

hth


.NET Framework  >  Common Language Runtime Internals and Architecture



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