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| author | Peter Zhu <peter@peterzhu.ca> | 2021-11-19 14:51:58 -0500 |
|---|---|---|
| committer | Peter Zhu <peter@peterzhu.ca> | 2021-11-23 10:51:27 -0500 |
| commit | 9aded89f4071a8afb79326701789241f1da12f82 (patch) | |
| tree | 4869f264a95718d7c6882564cf0d19a913fe952e /internal/gc.h | |
| parent | c14f230b26aa4f8abe9ecf3814cfebbe584d77c9 (diff) | |
| download | ruby-9aded89f4071a8afb79326701789241f1da12f82.tar.gz | |
Speed up Ractors for Variable Width Allocation
This commit adds a Ractor cache for every size pool. Previously, all VWA
allocated objects used the slowpath and locked the VM.
On a micro-benchmark that benchmarks String allocation:
VWA turned off:
29.196591 0.889709 30.086300 ( 9.434059)
VWA before this commit:
29.279486 41.477869 70.757355 ( 12.527379)
VWA after this commit:
16.782903 0.557117 17.340020 ( 4.255603)
Diffstat (limited to 'internal/gc.h')
| -rw-r--r-- | internal/gc.h | 12 |
1 files changed, 11 insertions, 1 deletions
diff --git a/internal/gc.h b/internal/gc.h index b7b29214cf..baf4f36a10 100644 --- a/internal/gc.h +++ b/internal/gc.h @@ -67,9 +67,19 @@ struct rb_objspace; /* in vm_core.h */ rb_obj_write((VALUE)(a), UNALIGNED_MEMBER_ACCESS((VALUE *)(slot)), \ (VALUE)(b), __FILE__, __LINE__) -typedef struct ractor_newobj_cache { +#if USE_RVARGC +# define SIZE_POOL_COUNT 4 +#else +# define SIZE_POOL_COUNT 1 +#endif + +typedef struct ractor_newobj_size_pool_cache { struct RVALUE *freelist; struct heap_page *using_page; +} rb_ractor_newobj_size_pool_cache_t; + +typedef struct ractor_newobj_cache { + rb_ractor_newobj_size_pool_cache_t size_pool_caches[SIZE_POOL_COUNT]; } rb_ractor_newobj_cache_t; /* gc.c */ |