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| author | Rickard Green <[email protected]> | 2010-09-07 15:05:47 +0200 |
|---|---|---|
| committer | Rickard Green <[email protected]> | 2010-09-08 22:10:59 +0200 |
| commit | 4e416cc50d9117aaaf46789259489d8cc4440a33 (patch) | |
| tree | 61c236a2211c9fdb4e7d0bbef502d0d1bf0487ea /erts | |
| parent | 46959cfb07d78bd4cbece99acfda7de938262611 (diff) | |
| download | otp-4e416cc50d9117aaaf46789259489d8cc4440a33.tar.gz otp-4e416cc50d9117aaaf46789259489d8cc4440a33.tar.bz2 otp-4e416cc50d9117aaaf46789259489d8cc4440a33.zip | |
Increase spincount with many schedulers
Diffstat (limited to 'erts')
| -rw-r--r-- | erts/include/internal/ethr_mutex.h | 8 | ||||
| -rw-r--r-- | erts/lib_src/common/ethr_mutex.c | 18 |
2 files changed, 22 insertions, 4 deletions
diff --git a/erts/include/internal/ethr_mutex.h b/erts/include/internal/ethr_mutex.h index 4ce3e75c78..8d9d5e3d08 100644 --- a/erts/include/internal/ethr_mutex.h +++ b/erts/include/internal/ethr_mutex.h @@ -346,7 +346,9 @@ do { \ #ifdef ETHR_USE_OWN_MTX_IMPL__ -#define ETHR_MTX_DEFAULT_MAIN_SPINCOUNT 1000 +#define ETHR_MTX_DEFAULT_MAIN_SPINCOUNT_MAX 2000 +#define ETHR_MTX_DEFAULT_MAIN_SPINCOUNT_BASE 800 +#define ETHR_MTX_DEFAULT_MAIN_SPINCOUNT_INC 50 #define ETHR_MTX_DEFAULT_AUX_SPINCOUNT 50 #define ETHR_CND_DEFAULT_MAIN_SPINCOUNT 0 @@ -443,7 +445,9 @@ ETHR_INLINE_FUNC_NAME_(ethr_mutex_unlock)(ethr_mutex *mtx) #ifdef ETHR_USE_OWN_RWMTX_IMPL__ -#define ETHR_RWMTX_DEFAULT_MAIN_SPINCOUNT 1000 +#define ETHR_RWMTX_DEFAULT_MAIN_SPINCOUNT_MAX 2000 +#define ETHR_RWMTX_DEFAULT_MAIN_SPINCOUNT_BASE 800 +#define ETHR_RWMTX_DEFAULT_MAIN_SPINCOUNT_INC 50 #define ETHR_RWMTX_DEFAULT_AUX_SPINCOUNT 50 #else /* pthread_rwlock */ diff --git a/erts/lib_src/common/ethr_mutex.c b/erts/lib_src/common/ethr_mutex.c index ccceb61714..4a588dd705 100644 --- a/erts/lib_src/common/ethr_mutex.c +++ b/erts/lib_src/common/ethr_mutex.c @@ -90,7 +90,7 @@ ethr_mutex_lib_init(int cpu_conf) no_spin = cpu_conf == 1; #ifdef ETHR_USE_OWN_MTX_IMPL__ - default_mtx_main_spincount = ETHR_MTX_DEFAULT_MAIN_SPINCOUNT; + default_mtx_main_spincount = ETHR_MTX_DEFAULT_MAIN_SPINCOUNT_BASE; default_mtx_aux_spincount = ETHR_MTX_DEFAULT_AUX_SPINCOUNT; default_cnd_main_spincount = ETHR_CND_DEFAULT_MAIN_SPINCOUNT; default_cnd_aux_spincount = ETHR_CND_DEFAULT_AUX_SPINCOUNT; @@ -98,7 +98,7 @@ ethr_mutex_lib_init(int cpu_conf) #ifdef ETHR_USE_OWN_RWMTX_IMPL__ - default_rwmtx_main_spincount = ETHR_RWMTX_DEFAULT_MAIN_SPINCOUNT; + default_rwmtx_main_spincount = ETHR_RWMTX_DEFAULT_MAIN_SPINCOUNT_BASE; default_rwmtx_aux_spincount = ETHR_RWMTX_DEFAULT_AUX_SPINCOUNT; #else @@ -146,7 +146,21 @@ static int main_threads_array_size = 0; int ethr_mutex_lib_late_init(int no_reader_groups, int no_main_threads) { + +#ifdef ETHR_USE_OWN_MTX_IMPL__ + default_mtx_main_spincount += (no_main_threads + * ETHR_MTX_DEFAULT_MAIN_SPINCOUNT_INC); + if (default_mtx_main_spincount > ETHR_MTX_DEFAULT_MAIN_SPINCOUNT_MAX) + default_mtx_main_spincount = ETHR_MTX_DEFAULT_MAIN_SPINCOUNT_MAX; +#endif + #ifdef ETHR_USE_OWN_RWMTX_IMPL__ + + default_rwmtx_main_spincount += (no_main_threads + * ETHR_RWMTX_DEFAULT_MAIN_SPINCOUNT_INC); + if (default_rwmtx_main_spincount > ETHR_RWMTX_DEFAULT_MAIN_SPINCOUNT_MAX) + default_rwmtx_main_spincount = ETHR_RWMTX_DEFAULT_MAIN_SPINCOUNT_MAX; + reader_groups_array_size = (no_reader_groups <= 1 ? 1 : no_reader_groups + 1); |