The simplest method of getting started is to run the xtw_etl_collection.bat. This will save a report to a file named xtw-report.txt. The output may be extensive horizontally, so make sure to disable word wrap in your text editor.
| Section |
Description |
| Total ISR/DPC Usage by CPU (usecs and count) |
For each CPU, the sum of all ISR/DPC elapsed times and occurrences for all that are scheduled that CPU |
| ISR/DPC Interval (ms) |
A measure of how frequently ISR/DPCs are scheduled. For example, 1ms is 1000 times per second, 0.125ms is 8000 times per second |
| ISR/DPC Elapsed Times (usecs) |
The time taken for ISR/DPCs to execute (end timestamp minus start timestamp) |
| PresentMon |
Various metrics such as Frame Time, CPU Busy, CPU Wait, GPU Busy, GPU Wait, Displayed Time, Input-to-Photon Latency, Click-to-Photon Latency. See the PresentMon docs for definitions of each metric |
| Option |
Description |
--etl-file <path> |
Analyze an existing trace log |
--no-banner |
Hides the startup banner |
--symbols |
Support for symbol resolution |
--delay <seconds> |
Delay trace log collection for the specified duration |
--timed <seconds> |
Collect events for the specified duration and stop automatically |
--output-report-file <path> |
Path for report output file. |
--merge <trace1> <trace2> ... <merged_trace> |
Merge 2 or more traces. E.g. --merge trace1.etl trace2.etl merged.etl |
