Revision 819 causes *severe* performance issues for my APL Packager.
https://github.com/TieDyedDevil/apl-pkg
(Use the `percy` branch.)
$ git clone https://github.com/TieDyedDevil/apl-pkg
# cd apl-pkg
$ git branch percy
$ ./install.sh
$ awe
Normally the system comes up in a second or so; under r819 it takes tens of
minutes to complete, during which one CPU core is pegged. (It's slow enough
that I first thought that some altered edge condition must've caused an
infinite loop.)
Memory usage is stable.
FWIW, this happens in the packager's boot loader, so there's not a lot of APL
code involved.
https://github.com/TieDyedDevil/apl-pkg/blob/percy/boot/gnu-apl-linux.apl
Once past the boot loader (which took about 90 minutes on my Haswell i7
notebook), virtually every packager operation is noticeably slow. If I had to
guess, I'd suspect that either branching or APL function calls are eating a lot
of cycles unnecessarily; my code uses lots of both.