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| author | Sergey Vojtovich <svoj@mariadb.org> | 2016-05-03 12:21:17 +0400 |
|---|---|---|
| committer | Sergey Vojtovich <svoj@mariadb.org> | 2016-05-03 12:21:17 +0400 |
| commit | 87a341bf5fbc752705ba88bd3ce5110777ac241e (patch) | |
| tree | f0403ed52ea52c162690720fa3f303d6da330225 | |
| parent | 8ffd10b85143efb0db8dc2ac0db952855addd4a5 (diff) | |
| download | mariadb-git-bb-10.2-mdev9857.tar.gz | |
MDEV-9857 - CACHE_LINE_SIZE in innodb should be 128 on POWERbb-10.2-mdev9857
Replaced hard-coded cache line size.
Changes based on Daniel Black's work.
| -rw-r--r-- | include/lf.h | 13 | ||||
| -rw-r--r-- | mysys/lf_alloc-pin.c | 2 | ||||
| -rw-r--r-- | storage/perfschema/pfs_global.h | 2 |
3 files changed, 10 insertions, 7 deletions
diff --git a/include/lf.h b/include/lf.h index 19bdafce647..d2cfd7ed0ad 100644 --- a/include/lf.h +++ b/include/lf.h @@ -68,11 +68,14 @@ typedef struct { void *purgatory; uint32 purgatory_count; uint32 volatile link; -/* we want sizeof(LF_PINS) to be 128 to avoid false sharing */ - char pad[128-sizeof(uint32)*2 - -sizeof(LF_PINBOX *) - -sizeof(void*) - -sizeof(void *)*(LF_PINBOX_PINS+1)]; + /* + we want sizeof(LF_PINS) to be CPU_LEVEL1_DCACHE_LINESIZE * 2 + to avoid false sharing + */ + char pad[CPU_LEVEL1_DCACHE_LINESIZE * 2 - sizeof(uint32) * 2 + - sizeof(LF_PINBOX*) + - sizeof(void*) + - sizeof(void*) * (LF_PINBOX_PINS + 1)]; } LF_PINS; /* compile-time assert to make sure we have enough pins. */ diff --git a/mysys/lf_alloc-pin.c b/mysys/lf_alloc-pin.c index b349ef88ed1..325b59e806b 100644 --- a/mysys/lf_alloc-pin.c +++ b/mysys/lf_alloc-pin.c @@ -121,7 +121,7 @@ void lf_pinbox_init(LF_PINBOX *pinbox, uint free_ptr_offset, lf_pinbox_free_func *free_func, void *free_func_arg) { DBUG_ASSERT(free_ptr_offset % sizeof(void *) == 0); - compile_time_assert(sizeof(LF_PINS) == 128); + compile_time_assert(sizeof(LF_PINS) == CPU_LEVEL1_DCACHE_LINESIZE * 2); lf_dynarray_init(&pinbox->pinarray, sizeof(LF_PINS)); pinbox->pinstack_top_ver= 0; pinbox->pins_in_array= 0; diff --git a/storage/perfschema/pfs_global.h b/storage/perfschema/pfs_global.h index f3326c5589f..7373f459599 100644 --- a/storage/perfschema/pfs_global.h +++ b/storage/perfschema/pfs_global.h @@ -31,7 +31,7 @@ extern bool pfs_initialized; extern size_t pfs_allocated_memory; #if defined(HAVE_POSIX_MEMALIGN) || defined(HAVE_MEMALIGN) || defined(HAVE_ALIGNED_MALLOC) -#define PFS_ALIGNEMENT 64 +#define PFS_ALIGNEMENT CPU_LEVEL1_DCACHE_LINESIZE #define PFS_ALIGNED MY_ALIGNED(PFS_ALIGNEMENT) #else /* |