$ time perl -MLog::Log4perl=:easy -Mbignum -E 'Log::Log4perl->easy_init($DEBUG);$|=1;INFO(qq{before});my $z = -15863.8668285308; INFO(qq{z: }, $z); my $e = exp( $z * -1 ); INFO(qq{e: }, $e); my $p = 1.0/$e;INFO(qq{p: }, $p);INFO(qq{DONE});'
2020/08/30 16:29:11 before
2020/08/30 16:29:11 z: -15863.8668285308
2020/08/30 16:32:45 e: 38888865970354639568651511148772888670670000000000000000000000000000000000000[boatload o 0s]
2020/08/30 16:32:45 p: 0.0[boatload o 0s]0002571430086859076110600680994899649646402
2020/08/30 16:32:45 DONE
perl -MLog::Log4perl=:easy -Mbignum -E   214.12s user 0.15s system 99% cpu 3:34.33 total