0d7d1fccff
The goal here is to avoid potentially expensive fork()ing. The time for a fork() is (for a process with no real heap usage and thus few areas) 300-400us on my system. load_image() takes 3000us (3ms) or so, but this of course includes exec() time. Overall, for compiling HaikuDepot (with a tweaked jam to use posix_spawn on Haiku, not just on Linux) there is a slight decrease in time: before: real 1m21.727s user 1m2.131s sys 0m43.029s after: real 1m19.472s user 1m1.752s sys 0m41.740s Which is probably within the realm of "noise", so more benchmarks are needed. Likely if we tweak our jam usage to not need as many shells when running commands, this would be a much more noticeable change. Change-Id: I217f2476b1ed9aa18322b3c2bc8986571d89549a |
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| .. | ||
| locale | ||
| time | ||
| dirent_private.h | ||
| errno_private.h | ||
| ErrnoMaintainer.h | ||
| extended_system_info.h | ||
| fork.h | ||
| image_private.h | ||
| launch.h | ||
| libroot_private.h | ||
| mathimpl.h | ||
| memory_private.h | ||
| pthread_private.h | ||
| SHA256.h | ||
| signal_private.h | ||
| stdlib_private.h | ||
| system_revision.h | ||
| time_private.h | ||
| times_private.h | ||
| trig.h | ||
| umask.h | ||
| unistd_private.h | ||
| user_group.h | ||
| user_thread.h | ||
| wchar_private.h | ||