If your Windows computer is running slowly – if a program takes a long time to launch, if a game has a poor frame rate, or if an idle application uses too much CPU time – the best way to investigate is to record an Event Tracing for Windows (ETW) trace. An ETW trace records a wealth of information (CPU sampling, context switches, disk I/O, custom data, and much more) that allows most performance problems to be understood by a trained expert. If you’re not a trained expert then you can still record an ETW trace, and then share it with somebody who is.
If a particular program is being slow or inefficient then you may be able to record an ETW trace and share it with the authors of that program. Quite often they can figure out what is going wrong, whether it is a bug on their side
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