What do the three numbers in Perfetto duration mean?
I'm just starting to look into Perfetto via viztracer for Python, and I noticed the "Current Selection" for a slice gives this kind of output:
In particular, it says:
Duration 53ms 926us 800ns
What do the three numbers mean? I've tried searching online, but I've found no explanation ...
The 53 ms does correspond to the width of the slice/event in the visualization, but what are the 926us and 800ns for?
The entire expression 53ms 926us 800ns is the duration: 53 milliseconds, plus 926 microseconds (commonly abbreviated as us or μs), plus 800 nanoseconds - for a total of 53.9268 milliseconds.
Based on the values of the timestamp and duration, it looks like precision is only to hundred-nanosecond intervals here.
The 53 ms does correspond to the width of the slice/event in the visualization
The whole number represents the width of the slice/event but the truncated value of 53 ms is close enough to look like it corresponds.
- What do the three numbers in Perfetto duration mean?
- Too many Binder Transaction operation during app cold startup
- CPU utilisation curve from perfetto trace
- How to open a chrome trace file with ui.perfetto.dev non interactively?
- Can I collect network traffic for my app using Perfetto?
- Running android systrace inside application