As a new tester, I need to use the wpr tool to grab logs in the background, but the default option does not limit the etl log size. So I'm going to write a custom configuration file, but I don't see any templates other than documentation help. Even the exportprofiles option is not available. So how do I get the provider information in the WPR-ProfileDetails CPU written in the correct template?I know CpatureStateOnsave has a key element, but what does the number after the provider mean?

Even the exportprofiles option is not available. This feature available in later version of wpr( for example it works fine in 10.0.22621) which you can get by installing latest WPT. but what does the number after the provider mean? it's a filtering by keyword https://learn.microsoft.com/en-us/windows-hardware/test/wpt/keywords--in-eventprovider-

An example how you can limit the file size can be found in my MultiProfile.wprp. See https://github.com/Alois-xx/FileWriter/blob/master/MultiProfile.wprp . It contains also a lot of comments what these values mean.

How to write the custom wprp files required by the wpt tool

Accepted answer

Konstantin Chernyi 161 Reputation points

2022-10-11T12:04:49.977+00:00

Even the exportprofiles option is not available.

This feature available in later version of wpr( for example it works fine in 10.0.22621) which you can get by installing latest WPT.

but what does the number after the provider mean?

it's a filtering by keyword https://learn.microsoft.com/en-us/windows-hardware/test/wpt/keywords--in-eventprovider-
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Sur 46 Reputation points

2022-10-13T06:22:28.68+00:00

Thank you for your answer. I noticed that exportprofile failed because the newly installed wpt toolkit did not overwrite Path.

I tested it yesterday and found a new interesting problem: in an excel stuckup scenario, setting the memory ratio to 0.5 and 0.5 would result in no uidelay column in the etl log, but when setting the memory ratio to 1 and 1, there would be uidelay column. I think the memory ratio should only affect the etl log duration, not the category, I don't know why this phenomenon

Konstantin Chernyi 161 Reputation points

2022-10-13T06:45:05.447+00:00

would result in no uidelay column in the etl log

UI delays graph is generated on top of Microsoft-Windows-Win32k provider in case it will contain specific event:

C:\temp>wevtutil gp Microsoft-Windows-Win32k /gm /ge | findstr "Delay"
name: InputProcessDelay
name: MessageCheckDelay
name: ImmersiveInputProcessDelay
name: ImmersiveMessageCheckDelay

example:

so if there were no delays during trace collection - graph won't be build.

Anyway, i don't think that using percentage of total memory is a good idea, cause 1% of 1Tb and 1% of 32Gb is a very different values, so it's for the best to define exactly how many buffers you'd like to allocate and define buffer size. With that you'll have all control on memory being used for tracing.
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How to write the custom wprp files required by the wpt tool

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