fn relativize_timestamps()

in focus/tracing/src/chrome/trace.rs [268:276]


    fn relativize_timestamps(events: &mut [Event]) {
        if let Some(min) = events.iter().min_by_key(|ev| ev.ts()) {
            let min_ts = min.ts();
            for ev in events.iter_mut() {
                let common = ev.common_mut();
                common.ts -= min_ts;
            }
        }
    }