diff options
Diffstat (limited to 'erts/emulator/sys')
| -rw-r--r-- | erts/emulator/sys/unix/sys.c | 28 | ||||
| -rw-r--r-- | erts/emulator/sys/win32/sys.c | 51 |
2 files changed, 56 insertions, 23 deletions
diff --git a/erts/emulator/sys/unix/sys.c b/erts/emulator/sys/unix/sys.c index af4ab693dc..01ba773688 100644 --- a/erts/emulator/sys/unix/sys.c +++ b/erts/emulator/sys/unix/sys.c @@ -75,6 +75,7 @@ static erts_smp_rwmtx_t environ_rwmtx; #include "erl_sys_driver.h" #include "erl_check_io.h" +#include "erl_cpu_topology.h" #ifndef DISABLE_VFORK #define DISABLE_VFORK 0 @@ -399,7 +400,7 @@ typedef struct { #ifdef ERTS_THR_HAVE_SIG_FUNCS sigset_t saved_sigmask; #endif - int unbind_child; + int sched_bind_data; } erts_thr_create_data_t; /* @@ -410,15 +411,13 @@ static void * thr_create_prepare(void) { erts_thr_create_data_t *tcdp; - ErtsSchedulerData *esdp; tcdp = erts_alloc(ERTS_ALC_T_TMP, sizeof(erts_thr_create_data_t)); #ifdef ERTS_THR_HAVE_SIG_FUNCS erts_thr_sigmask(SIG_BLOCK, &thr_create_sigmask, &tcdp->saved_sigmask); #endif - esdp = erts_get_scheduler_data(); - tcdp->unbind_child = esdp && erts_is_scheduler_bound(esdp); + tcdp->sched_bind_data = erts_sched_bind_atthrcreate_prepare(); return (void *) tcdp; } @@ -430,6 +429,8 @@ thr_create_cleanup(void *vtcdp) { erts_thr_create_data_t *tcdp = (erts_thr_create_data_t *) vtcdp; + erts_sched_bind_atthrcreate_parent(tcdp->sched_bind_data); + #ifdef ERTS_THR_HAVE_SIG_FUNCS /* Restore signalmask... */ erts_thr_sigmask(SIG_SETMASK, &tcdp->saved_sigmask, NULL); @@ -456,12 +457,7 @@ thr_create_prepare_child(void *vtcdp) erts_thread_disable_fpe(); #endif - if (tcdp->unbind_child) { - erts_smp_rwmtx_rlock(&erts_cpu_bind_rwmtx); - erts_unbind_from_cpu(erts_cpuinfo); - erts_smp_rwmtx_runlock(&erts_cpu_bind_rwmtx); - } - + erts_sched_bind_atthrcreate_child(tcdp->sched_bind_data); } #endif /* #ifdef USE_THREADS */ @@ -1461,9 +1457,7 @@ static ErlDrvData spawn_start(ErlDrvPort port_num, char* name, SysDriverOpts* op CHLD_STAT_LOCK; - unbind = erts_is_scheduler_bound(NULL); - if (unbind) - erts_smp_rwmtx_rlock(&erts_cpu_bind_rwmtx); + unbind = erts_sched_bind_atfork_prepare(); #if !DISABLE_VFORK /* See fork/vfork discussion before this function. */ @@ -1476,7 +1470,7 @@ static ErlDrvData spawn_start(ErlDrvPort port_num, char* name, SysDriverOpts* op if (pid == 0) { /* The child! Setup child... */ - if (unbind && erts_unbind_from_cpu(erts_cpuinfo) != 0) + if (erts_sched_bind_atfork_child(unbind) != 0) goto child_error; /* OBSERVE! @@ -1577,8 +1571,7 @@ static ErlDrvData spawn_start(ErlDrvPort port_num, char* name, SysDriverOpts* op cs_argv[CS_ARGV_PROGNAME_IX] = child_setup_prog; cs_argv[CS_ARGV_WD_IX] = opts->wd ? opts->wd : "."; - cs_argv[CS_ARGV_UNBIND_IX] - = (unbind ? erts_get_unbind_from_cpu_str(erts_cpuinfo) : "false"); + cs_argv[CS_ARGV_UNBIND_IX] = erts_sched_bind_atvfork_child(unbind); cs_argv[CS_ARGV_FD_CR_IX] = fd_close_range; for (i = 0; i < CS_ARGV_NO_OF_DUP2_OPS; i++) cs_argv[CS_ARGV_DUP2_OP_IX(i)] = &dup2_op[i][0]; @@ -1627,8 +1620,7 @@ static ErlDrvData spawn_start(ErlDrvPort port_num, char* name, SysDriverOpts* op } #endif - if (unbind) - erts_smp_rwmtx_runlock(&erts_cpu_bind_rwmtx); + erts_sched_bind_atfork_parent(unbind); if (pid == -1) { saved_errno = errno; diff --git a/erts/emulator/sys/win32/sys.c b/erts/emulator/sys/win32/sys.c index 68d18c43ff..39b04b26a9 100644 --- a/erts/emulator/sys/win32/sys.c +++ b/erts/emulator/sys/win32/sys.c @@ -31,7 +31,7 @@ #include "global.h" #include "erl_threads.h" #include "../../drivers/win32/win_con.h" - +#include "erl_cpu_topology.h" void erts_sys_init_float(void); @@ -3016,13 +3016,50 @@ check_supported_os_version(void) } #ifdef USE_THREADS -#ifdef ERTS_ENABLE_LOCK_COUNT + +typedef struct { + int sched_bind_data; +} erts_thr_create_data_t; + +/* + * thr_create_prepare() is called in parent thread before thread creation. + * Returned value is passed as argument to thr_create_cleanup(). + */ +static void * +thr_create_prepare(void) +{ + erts_thr_create_data_t *tcdp; + + tcdp = erts_alloc(ERTS_ALC_T_TMP, sizeof(erts_thr_create_data_t)); + tcdp->sched_bind_data = erts_sched_bind_atthrcreate_prepare(); + + return (void *) tcdp; +} + + +/* thr_create_cleanup() is called in parent thread after thread creation. */ +static void +thr_create_cleanup(void *vtcdp) +{ + erts_thr_create_data_t *tcdp = (erts_thr_create_data_t *) vtcdp; + + erts_sched_bind_atthrcreate_parent(tcdp->sched_bind_data); + + erts_free(ERTS_ALC_T_TMP, tcdp); +} + static void thr_create_prepare_child(void *vtcdp) { + erts_thr_create_data_t *tcdp = (erts_thr_create_data_t *) vtcdp; + +#ifdef ERTS_ENABLE_LOCK_COUNT erts_lcnt_thread_setup(); -} #endif /* ERTS_ENABLE_LOCK_COUNT */ + + erts_sched_bind_atthrcreate_child(tcdp->sched_bind_data); +} + #endif /* USE_THREADS */ void @@ -3034,9 +3071,13 @@ erts_sys_pre_init(void) #ifdef USE_THREADS { erts_thr_init_data_t eid = ERTS_THR_INIT_DATA_DEF_INITER; -#ifdef ERTS_ENABLE_LOCK_COUNT + eid.thread_create_child_func = thr_create_prepare_child; -#endif + /* Before creation in parent */ + eid.thread_create_prepare_func = thr_create_prepare; + /* After creation in parent */ + eid.thread_create_parent_func = thr_create_cleanup, + erts_thr_init(&eid); #ifdef ERTS_ENABLE_LOCK_COUNT erts_lcnt_init(); |