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| author | John Högberg <[email protected]> | 2017-06-22 13:22:13 +0200 |
|---|---|---|
| committer | John Högberg <[email protected]> | 2017-07-06 12:29:42 +0200 |
| commit | f3fa8288287072195baa791ee11d5480d3cd45ff (patch) | |
| tree | 7099c828834a43fde1c3fde0a6c151bdf9042807 /erts/emulator/sys/common/erl_check_io.c | |
| parent | e9bb277cc5cc8326c3c90ed82954f2ee14c1844b (diff) | |
| download | otp-f3fa8288287072195baa791ee11d5480d3cd45ff.tar.gz otp-f3fa8288287072195baa791ee11d5480d3cd45ff.tar.bz2 otp-f3fa8288287072195baa791ee11d5480d3cd45ff.zip | |
Allow toggling lock counting at runtime
The implementation is still hidden behind ERTS_ENABLE_LOCK_COUNT, and
all categories are still enabled by default, but the actual counting can be
toggled at will.
OTP-13170
Diffstat (limited to 'erts/emulator/sys/common/erl_check_io.c')
| -rw-r--r-- | erts/emulator/sys/common/erl_check_io.c | 36 |
1 files changed, 22 insertions, 14 deletions
diff --git a/erts/emulator/sys/common/erl_check_io.c b/erts/emulator/sys/common/erl_check_io.c index ad580e7d52..799f67fc45 100644 --- a/erts/emulator/sys/common/erl_check_io.c +++ b/erts/emulator/sys/common/erl_check_io.c @@ -2564,24 +2564,22 @@ ERTS_CIO_EXPORT(erts_init_check_io)(void) #ifdef ERTS_SMP init_removed_fd_alloc(); pollset.removed_list = NULL; - erts_smp_spinlock_init(&pollset.removed_list_lock, - "pollset_rm_list"); + erts_smp_spinlock_init(&pollset.removed_list_lock, "pollset_rm_list", NIL, + ERTS_LOCK_FLAGS_PROPERTY_STATIC | ERTS_LOCK_FLAGS_CATEGORY_IO); { - int i; - for (i=0; i<DRV_EV_STATE_LOCK_CNT; i++) { -#ifdef ERTS_ENABLE_LOCK_COUNT - erts_smp_mtx_init_x(&drv_ev_state_locks[i].lck, "drv_ev_state", make_small(i)); -#else - erts_smp_mtx_init(&drv_ev_state_locks[i].lck, "drv_ev_state"); -#endif - } + int i; + for (i=0; i<DRV_EV_STATE_LOCK_CNT; i++) { + erts_smp_mtx_init(&drv_ev_state_locks[i].lck, "drv_ev_state", make_small(i), + ERTS_LOCK_FLAGS_PROPERTY_STATIC | ERTS_LOCK_FLAGS_CATEGORY_IO); + } } #endif #ifdef ERTS_SYS_CONTINOUS_FD_NUMBERS max_fds = ERTS_CIO_POLL_MAX_FDS(); erts_smp_atomic_init_nob(&drv_ev_state_len, 0); drv_ev_state = NULL; - erts_smp_mtx_init(&drv_ev_state_grow_lock, "drv_ev_state_grow"); + erts_smp_mtx_init(&drv_ev_state_grow_lock, "drv_ev_state_grow", NIL, + ERTS_LOCK_FLAGS_PROPERTY_STATIC | ERTS_LOCK_FLAGS_CATEGORY_IO); #else { SafeHashFunctions hf; @@ -2591,10 +2589,11 @@ ERTS_CIO_EXPORT(erts_init_check_io)(void) hf.free = &drv_ev_state_free; num_state_prealloc = 0; state_prealloc_first = NULL; - erts_smp_spinlock_init(&state_prealloc_lock,"state_prealloc"); + erts_smp_spinlock_init(&state_prealloc_lock,"state_prealloc", NIL, + ERTS_LOCK_FLAGS_PROPERTY_STATIC | ERTS_LOCK_FLAGS_CATEGORY_IO); - safe_hash_init(ERTS_ALC_T_DRV_EV_STATE, &drv_ev_state_tab, "drv_ev_state_tab", - DRV_EV_STATE_HTAB_SIZE, hf); + safe_hash_init(ERTS_ALC_T_DRV_EV_STATE, &drv_ev_state_tab, "drv_ev_state_tab", + ERTS_LOCK_FLAGS_CATEGORY_IO, DRV_EV_STATE_HTAB_SIZE, hf); } #endif } @@ -3130,3 +3129,12 @@ ERTS_CIO_EXPORT(erts_check_io_debug)(ErtsCheckIoDebugInfo *ciodip) return counters.num_errors; } +#ifdef ERTS_ENABLE_LOCK_COUNT +void ERTS_CIO_EXPORT(erts_lcnt_update_cio_locks)(int enable) { +#ifndef ERTS_SYS_CONTINOUS_FD_NUMBERS + erts_lcnt_enable_hash_lock_count(&drv_ev_state_tab, ERTS_LOCK_FLAGS_CATEGORY_IO, enable); +#else + (void)enable; +#endif +} +#endif /* ERTS_ENABLE_LOCK_COUNT */ |