[wdmaudiodev] Driver performance logging
- From: R T <ghk782000@xxxxxxxxx>
- To: wdmaudiodev@xxxxxxxxxxxxx
- Date: Tue, 22 Jun 2004 00:40:57 -0700 (PDT)
Hi,
I'm new to this list and wondering if anybody here happened to look into
logging an audio driver's performance with relation to this link:
http://www.microsoft.com/whdc/driver/perform/mmdrv.mspx
Following the instruction there on using tracelog and tracerpt on WinXP SP2, I
managed to get a log, which I attached an extract of it.
Can anyone point out to me how to intepret Lower Bound and Upper Bound? It
seems to me it is a range of time it takes for a certain process to complete.
Is it in terms of microsec, msec?
Any insights would be appreciated. Thanks.
Ray.
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| Distribution of portcls.sys (F28A0945) DPC execution times for the whole
trace |
+-----------------------------------------------------------------------------------------+
| Lower Bound Upper Bound Count Percent
|
+-----------------------------------------------------------------------------------------+
| 0 1 0 0.00%
|
| 1 2 0 0.00%
|
| 2 3 0 0.00%
|
| 3 4 0 0.00%
|
| 4 5 0 0.00%
|
| 5 10 1 0.03%
|
| 10 25 3143 99.27%
|
| 25 50 22 0.69%
|
+-----------------------------------------------------------------------------------------+
| 3166 100.00%
|
+-----------------------------------------------------------------------------------------+
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