Threaded DRC access will write to this string, re-allocating the memory
without any synchronization between threads using the string. Comment
adding this listed performance as a reason for using shared strings.
Measured performance does not seem noticeably different in either case,
even with high-error count boards. If there is a case where the
performance is limiting, we can replace these wxStrings with
std::wstring and utilize fmt
Fixes https://gitlab.com/kicad/code/kicad/issues/9888
(cherry picked from commit 5327b10064)
The main issue was a parameter mismatch which caused On^2 behaviour
for zone layers.
But there are several other performance optimizations here, along
with status bar updating for zones while running the dissallow test.
Fixes https://gitlab.com/kicad/code/kicad/issues/8521
1) Don't report on tests not run.
2) Don't cancel subsequent tests because the current test didn't
have any constraints
3) Exit a little bit quicker when cancelled
Fixes https://gitlab.com/kicad/code/kicad/issues/7724
Also fixes a bug in silk-to-mask checking which wasn't checking
zones on the mask layer.
Also a perfomance fix for the DRC RTree to use a hash table (std::map)
instead of a std::set for keeping track of known collisions.
Fixes https://gitlab.com/kicad/code/kicad/issues/5851
Seth Hillbrand
Jeff Young
Marek Roszko