Marge Bot pushed to branch master at Glasgow Haskell Compiler / GHC Commits: 0491f08a by Sylvain Henry at 2026-01-22T03:44:26-05:00 GC: don't use CAS without PARALLEL_GC on If we're not using the parallel GC, there is no reason to do a costly CAS. This was flagged as taking time in a perf profile. - - - - - 211a8f56 by Sylvain Henry at 2026-01-22T03:44:26-05:00 GC: suffix parallel GC with "par" instead of "thr" Avoid some potential confusion (see discussion in !15351). - - - - - 4 changed files: - rts/rts.cabal - rts/sm/Evac.c - rts/sm/Evac_thr.c → rts/sm/Evac_par.c - rts/sm/Scav_thr.c → rts/sm/Scav_par.c Changes: ===================================== rts/rts.cabal ===================================== @@ -511,7 +511,7 @@ library sm/CNF.c sm/Compact.c sm/Evac.c - sm/Evac_thr.c + sm/Evac_par.c sm/GC.c sm/GCAux.c sm/GCUtils.c @@ -526,7 +526,7 @@ library sm/NonMovingSweep.c sm/Sanity.c sm/Scav.c - sm/Scav_thr.c + sm/Scav_par.c sm/Storage.c sm/Sweep.c fs.c ===================================== rts/sm/Evac.c ===================================== @@ -498,7 +498,7 @@ evacuate_static_object (StgClosure **link_field, StgClosure *q) // See Note [STATIC_LINK fields] for how the link field bits work if (((link & STATIC_BITS) | prev_static_flag) != 3) { StgWord new_list_head = (StgWord)q | static_flag; -#if !defined(THREADED_RTS) +#if !defined(PARALLEL_GC) *link_field = gct->static_objects; gct->static_objects = (StgClosure *)new_list_head; #else ===================================== rts/sm/Evac_thr.c → rts/sm/Evac_par.c ===================================== ===================================== rts/sm/Scav_thr.c → rts/sm/Scav_par.c ===================================== View it on GitLab: https://gitlab.haskell.org/ghc/ghc/-/compare/9788c0ecb7288cdcbe067fa90f54ec2... -- View it on GitLab: https://gitlab.haskell.org/ghc/ghc/-/compare/9788c0ecb7288cdcbe067fa90f54ec2... You're receiving this email because of your account on gitlab.haskell.org.