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| author | Rickard Green <[email protected]> | 2012-04-27 13:06:27 +0200 |
|---|---|---|
| committer | Rickard Green <[email protected]> | 2012-04-27 13:06:27 +0200 |
| commit | 398bb9a9a5b2a56f0333ce81efe00380692ec93a (patch) | |
| tree | adb7239744ae6f3d45f672e29d9c2bd97e0e67d9 /erts/emulator/beam/erl_bif_ddll.c | |
| parent | 52312a8b93e8b250099e2f1b1b802e63e37971cc (diff) | |
| parent | 3730e28ad736f0538141d4474e0038a9cc48df71 (diff) | |
| download | otp-398bb9a9a5b2a56f0333ce81efe00380692ec93a.tar.gz otp-398bb9a9a5b2a56f0333ce81efe00380692ec93a.tar.bz2 otp-398bb9a9a5b2a56f0333ce81efe00380692ec93a.zip | |
Merge branch 'rickard/proc-sched/OTP-9892'
* rickard/proc-sched/OTP-9892:
Teach etp-commands to understand new emulator internal data structures
Optimize process state changes
Optimize process table access
Implement possibility to use ordinary mutexes as process locks
Conflicts:
erts/emulator/beam/erl_alloc.types
Diffstat (limited to 'erts/emulator/beam/erl_bif_ddll.c')
| -rw-r--r-- | erts/emulator/beam/erl_bif_ddll.c | 12 |
1 files changed, 3 insertions, 9 deletions
diff --git a/erts/emulator/beam/erl_bif_ddll.c b/erts/emulator/beam/erl_bif_ddll.c index c338ee1c4b..7f7c975e78 100644 --- a/erts/emulator/beam/erl_bif_ddll.c +++ b/erts/emulator/beam/erl_bif_ddll.c @@ -368,13 +368,11 @@ BIF_RETTYPE erl_ddll_try_load_3(BIF_ALIST_3) #endif for (j = 0; j < erts_max_ports; j++) { Port* prt = &erts_port[j]; -#ifdef DDLL_SMP erts_smp_port_state_lock(prt); -#endif if (!(prt->status & FREE_PORT_FLAGS) && prt->drv_ptr->handle == dh) { -#if DDLL_SMP erts_smp_atomic_inc_nob(&prt->refc); +#if DDLL_SMP /* Extremely rare spinlock */ while(prt->status & ERTS_PORT_SFLG_INITIALIZING) { erts_smp_port_state_unlock(prt); @@ -598,13 +596,11 @@ done: #endif for (j = 0; j < erts_max_ports; j++) { Port* prt = &erts_port[j]; -#if DDLL_SMP erts_smp_port_state_lock(prt); -#endif if (!(prt->status & FREE_PORT_FLAGS) && prt->drv_ptr->handle == dh) { -#if DDLL_SMP erts_smp_atomic_inc_nob(&prt->refc); +#if DDLL_SMP /* Extremely rare spinlock */ while(prt->status & ERTS_PORT_SFLG_INITIALIZING) { erts_smp_port_state_unlock(prt); @@ -1060,13 +1056,11 @@ void erts_ddll_proc_dead(Process *p, ErtsProcLocks plocks) #endif for (j = 0; j < erts_max_ports; j++) { Port* prt = &erts_port[j]; -#if DDLL_SMP erts_smp_port_state_lock(prt); -#endif if (!(prt->status & FREE_PORT_FLAGS) && prt->drv_ptr->handle == dh) { -#if DDLL_SMP erts_smp_atomic_inc_nob(&prt->refc); +#if DDLL_SMP while(prt->status & ERTS_PORT_SFLG_INITIALIZING) { erts_smp_port_state_unlock(prt); erts_smp_port_state_lock(prt); |