- when thread_get_room exhausts the local allocation area, it now
goes through a common path with S_get_more_room to allocate a new
local allocation area when appropriate. this can greatly reduce
the use of global allocation (and the number of tc mutex acquires
in threaded builds) when a lot of small objects are allocated by
C code with no intervening Scheme-side allocation or dirty writes.
alloc.c, types.h, externs.h
original commit: 93dfa7674a95837e5a22bc622fecc50b0224f60d
to simplify ($fxu< (most-positive-fixnum) e) => (fx< e 0) so we
don't have any incentive in special casing length checks where
the maximum length happens to be (most-positive-fixnum).
5_4.ss, 5_6.ss, bytevector.ss, cmacros.ss, cp0.ss, cpnanopass.ss,
mkheader.ss, primdata.ss, prims.ss,
fasl.c, gc.c, types.h
root-experr*, patch*
original commit: 9eb63deda025fd4560b54746b21a881c01af46d6
because these fields can be accessed from multiple threads concurrently.
Updated $yield and $thread-check in mats/thread.ms to be more tolerant of timing variability.
original commit: 0a6a1e14e7ecb9e39fa7a10a8584ed2fec24cbf4
