diff options
Diffstat (limited to 'rts/sm/Scav.c')
| -rw-r--r-- | rts/sm/Scav.c | 31 |
1 files changed, 22 insertions, 9 deletions
diff --git a/rts/sm/Scav.c b/rts/sm/Scav.c index dd9a96adf8..0a4e76a819 100644 --- a/rts/sm/Scav.c +++ b/rts/sm/Scav.c @@ -65,6 +65,8 @@ #include "sm/NonMoving.h" // for nonmoving_set_closure_mark_bit #include "sm/NonMovingScav.h" +#include <string.h> /* for memset */ + static void scavenge_large_bitmap (StgPtr p, StgLargeBitmap *large_bitmap, StgWord size ); @@ -1583,6 +1585,10 @@ static void scavenge_mutable_list(bdescr *bd, generation *gen) { StgPtr p, q; +#if defined(DEBUG) + MutListScavStats stats; // Local accumulator + zeroMutListScavStats(&stats); +#endif uint32_t gen_no = gen->no; gct->evac_gen_no = gen_no; @@ -1598,31 +1604,31 @@ scavenge_mutable_list(bdescr *bd, generation *gen) case MUT_VAR_CLEAN: // can happen due to concurrent writeMutVars case MUT_VAR_DIRTY: - mutlist_MUTVARS++; break; + stats.n_MUTVAR++; break; case MUT_ARR_PTRS_CLEAN: case MUT_ARR_PTRS_DIRTY: case MUT_ARR_PTRS_FROZEN_CLEAN: case MUT_ARR_PTRS_FROZEN_DIRTY: - mutlist_MUTARRS++; break; + stats.n_MUTARR++; break; case MVAR_CLEAN: barf("MVAR_CLEAN on mutable list"); case MVAR_DIRTY: - mutlist_MVARS++; break; + stats.n_MVAR++; break; case TVAR: - mutlist_TVAR++; break; + stats.n_TVAR++; break; case TREC_CHUNK: - mutlist_TREC_CHUNK++; break; + stats.n_TREC_CHUNK++; break; case MUT_PRIM: pinfo = ((StgClosure*)p)->header.info; if (pinfo == &stg_TVAR_WATCH_QUEUE_info) - mutlist_TVAR_WATCH_QUEUE++; + stats.n_TVAR_WATCH_QUEUE++; else if (pinfo == &stg_TREC_HEADER_info) - mutlist_TREC_HEADER++; + stats.n_TREC_HEADER++; else - mutlist_OTHERS++; + stats.n_OTHERS++; break; default: - mutlist_OTHERS++; break; + stats.n_OTHERS++; break; } #endif @@ -1671,6 +1677,13 @@ scavenge_mutable_list(bdescr *bd, generation *gen) } } } + +#if defined(DEBUG) + // For lack of a better option we protect mutlist_scav_stats with oldest_gen->sync + ACQUIRE_SPIN_LOCK(&oldest_gen->sync); + addMutListScavStats(&stats, &mutlist_scav_stats); + RELEASE_SPIN_LOCK(&oldest_gen->sync); +#endif } void |