High NP Pool on windows ~ performance degradation
CLiJC
I'm not sure if this is the right group to post this in, but since
this is related to tcp-ip socket communication I am hoping someone may
help.
I have a server application written in C# ,net framework 2.0 running
on windows xp embedded
The server uses asynchronous socket communication to accept connection
from clients and receive/send data.
After a while the server becomes slow, and task manager indicates high
NP pool around 2MB.. high Handles ~ 200, and Mem usage ~ 40MB, with
CPU usage flickering between 15-25%
After searching online, I see that a high NP Pool is indicative of
memory leak, probably I think related to the asynchronous approach of
socket communication.
Anybody please has an idea how to approach or resolve this problem?
Cheers
Jorgen Grahn
Can't it be that you create object so fast that the garbage collector
cannot keep up? I have never used CG languages, but ...
> Anybody please has an idea how to approach or resolve this problem?
(I googled: "NP Pool" is approximately "a part of a process's heap
which isn't allowed to be swapped to disk". Why one would disallow
that, I have no idea.)
The memory leak is in your /application/, so there's little chance
that people here can help you without the source code[1]. I think you
are better off asking at a .NET newsgroup, and/or finding out what
memory debugging tools are available.
/Jorgen
[1] And I guess few people here know C# and whatever API it uses for
TCP.
--
// Jorgen Grahn <grahn@ Ph'nglui mglw'nafh Cthulhu
\X/ snipabacken.se> R'lyeh wgah'nagl fhtagn!