Performance counter: The average values always take the no activity sampling interval into account?
- From: ljzhu <Zhu.Lijuan@xxxxxxxxx>
- Date: Mon, 3 Dec 2007 15:50:54 -0800 (PST)
Hi,
I was checking my performance counters recorded on my server, and
found something unexpected.
say my sampling interval is 15 seconds, and the time I record the
performance counter is 60 seconds.
For example, Avg. Disk Bytes/Transfer
the first interval (15 seconds): 200
the second interval (30 seconds): 0
the third interval (45 seconds) : 400
the fourth interval (60 seconds): 0
There are only two transfers during 60 seconds, and the average disk
bytes/transfer should be calculated as:
(200+400)/2 = 300
But the perfmon gives me : 150, which seems to me calculated as :
( 200 + 0 + 400 + 0)/4 = 150.
Actually I am expecting 300 instead of 150, why the perfmon takes the
no activity sampling interval into account, and gives me the wrong
result?
Is there any way I could get the right number?
Thanks,
Lijuan
.
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