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Side by Side Diff: tools/win/IdleWakeups/ReadMe.txt

Issue 2356753004: IdleWakeups tool (Closed)
Patch Set: Missing vcproj changes. Created 4 years, 3 months ago
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1 This tool is designed to measure and aggregate a few key performance metrics
2 for all Chrome processes over time. The tool supports other browsers such as
3 Edge or Firefox, or in fact any other processes. The inclusion of processes
4 is based on a simple partial process image name match against the image name
5 argument (optional, Chrome.exe is the default image name used when no
6 argument is provided).
7
8 Sample usage:
9
10 "IdleWakeups.exe" to match all Chrome.exe processes.
11 "IdleWakeups.exe" firefox to match Firefox process.
12 "IdleWakeups.exe MicrosoftEdge" to match all Edge processes.
13
14 When the tool starts it begins gathering and aggregating CPU usage, private
15 working set size, number of context switches / sec, and power usage for all
16 matched processes. Hit Ctrl+C to stop the measurements and print average and
17 median values over the entire measurement interval.
18
19 CPU usage is normalized to one CPU core with 100% meaning one CPU core is
20 fully utilized.
21
22 Intel Power Gadget is required to allow IdleWakeups tool to query power usage.
23 https://software.intel.com/en-us/articles/intel-power-gadget-20
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