Opening a sweep parses the header of every file to get its start angle, and one
header is two dozen std::regex searches: measured at 0.33 ms on a 16 Mpx sweep
and 1.0 ms on one with a longer header, so a 7200-frame sweep spent 7.2 s on one
thread before it read an image. The files are independent, so the scan is shared
out over up to eight of them.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
leonarski_fandClaude Opus 5
10435ef588