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Thread: Performance monitoring puzzle
2004-05-26, 14:42 #1
- Join Date
- Aug 2001
- New Jersey, USA
- Thanked 0 Times in 0 Posts
Performance monitoring puzzle
[Using Win2000 SP4]
On a PC running only a 'steady state' program Perfmon shows varying % Processor Time ( 1 % for maybe 10 minutes and then 80 % for another 10 minutes.)
This is completely unexpected behavior since the program runs steadily and nothing else is running on that PC, etc.
I need some ideas as to how to determine what's really going on and why the % Processor changes every some number of minutes.
Two PC's on isolated network;
A transmit program on PC A is continously publishing multicast UDP data to a receive program running on PC B;
(The transmit and receive programs are simple Windows socket programs);
(The receive program merely reads and does nothing with the data).
Perfmon is being used to monitor % Processor Time, % Privileged Time, Datagrams/sec, etc
Task Manager also being used.
The % Processor Time on PC B (running receive program) as shown by Perfmon goes between 80 % and 1 % ((changing every several minutes [10-15 ?])
while datagrams/sec does not change and the receive program continues to receive (and count) receive packets at a steady rate.
When the CPU shows as 80 % for a several minute period, task manager shows that the CPU is being used by the 'receive' program (not by any otherr
So: Thanks in advance for any thoughts anyone may have
2004-05-26, 17:41 #2
- Join Date
- Mar 2001
- St Louis, Missouri, USA
- Thanked 646 Times in 578 Posts
Re: Performance monitoring puzzle
What else is running? Can you post a screenshot of the task manager processes?