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| > erlang:system_info(system_version). | |
| "Erlang/OTP 22 [erts-10.6] [source] [64-bit] [smp:12:12] [ds:12:12:10] [async-threads:144] [hipe] [lock-counting] [dtrace]\n" | |
| > erlang:statistics(reductions). | |
| {165925199,165925199} | |
| > length(erlang:processes()). | |
| 135 | |
| > lcnt:rt_opt({copy_save, true}), | |
| > lcnt:clear(), | |
| > timer:sleep(12000), | |
| > lcnt:collect(), | |
| > lcnt:conflicts(). | |
| lock id #tries #collisions collisions [%] time [us] duration [%] | |
| ----- --- ------- ------------ --------------- ---------- ------------- | |
| #Port<[email protected]> 1 4 1 25.0000 6707846 54.6453 | |
| #Port<[email protected]> 1 4 1 25.0000 6330800 51.5737 | |
| #Port<[email protected]> 1 4 1 25.0000 6327830 51.5495 | |
| #Port<[email protected]> 1 4 1 25.0000 6325407 51.5297 | |
| #Port<[email protected]> 1 4 1 25.0000 1025033 8.3504 | |
| #Port<[email protected]> 1 4 1 25.0000 784936 6.3945 | |
| #Port<[email protected]> 1 4 1 25.0000 602049 4.9046 | |
| run_queue 14 403859 6666 1.6506 306278 2.4951 | |
| #Port<[email protected]> 1 4 1 25.0000 239565 1.9516 | |
| #Port<[email protected]> 1 4 1 25.0000 232629 1.8951 | |
| #Port<[email protected]> 1 4 1 25.0000 194355 1.5833 | |
| #Port<[email protected]> 1 4 1 25.0000 162898 1.3270 | |
| #Port<[email protected]> 1 4 1 25.0000 160238 1.3054 | |
| #Port<[email protected]> 1 4 1 25.0000 151371 1.2331 | |
| #Port<[email protected]> 1 4 1 25.0000 117102 0.9540 | |
| #Port<[email protected]> 1 4 1 25.0000 105302 0.8578 | |
| #Port<[email protected]> 1 4 1 25.0000 101243 0.8248 | |
| #Port<[email protected]> 1 8482 252 2.9710 25822 0.2104 | |
| drv_ev_state 128 38584 437 1.1326 17032 0.1388 | |
| code_server 5 77800 851 1.0938 16674 0.1358 | |
| > lcnt:inspect(run_queue, [{locations, true}, {combine, true}]). | |
| lock: run_queue | |
| id: 14 | |
| type: mutex | |
| location #tries #collisions collisions [%] time [us] duration [%] histogram [log2(us)] | |
| --------- ------- ------------ --------------- ---------- ------------- --------------------- | |
| 'beam/erl_process.h':2500 403859 6666 1.6506 306278 2.4951 |X ......x.... | | |
| undefined:0 0 0 0.0000 0 0.0000 | | | |
| ERTS_GLB_INLINE void | |
| erts_runq_lock(ErtsRunQueue *rq) | |
| { | |
| erts_mtx_lock(&rq->mtx); // <<-------------------- points to this lock | |
| } | |
| > lcnt:inspect({lcnt:port(12155), port_lock}, [{locations, true}, {combine, true}]). | |
| lock: #Port<[email protected]> | |
| id: 1 | |
| type: mutex | |
| location #tries #collisions collisions [%] time [us] duration [%] histogram [log2(us)] | |
| --------- ------- ------------ --------------- ---------- ------------- --------------------- | |
| 'beam/erl_port.h':437 1 1 100.0000 6707846 54.6453 | X| | |
| undefined:0 3 0 0.0000 0 0.0000 | | | |
| > lcnt:inspect({lcnt:port(12474), port_lock}, [{locations, true}, {combine, true}]). | |
| lock: #Port<[email protected]> | |
| id: 1 | |
| type: mutex | |
| location #tries #collisions collisions [%] time [us] duration [%] histogram [log2(us)] | |
| --------- ------- ------------ --------------- ---------- ------------- --------------------- | |
| 'beam/erl_port.h':437 1 1 100.0000 101243 0.8248 | X | | |
| undefined:0 3 0 0.0000 0 0.0000 | | | |
| ERTS_GLB_INLINE void | |
| erts_port_lock(Port *prt) | |
| { | |
| /* *Need* to be a managed thread */ | |
| ERTS_LC_ASSERT(erts_thr_progress_is_managed_thread()); | |
| erts_mtx_lock(prt->lock); // <<-------------------- points to this lock | |
| } | |
| > lcnt:inspect(port_sched_lock, [{locations, true}, {combine, true}]). | |
| lock: port_sched_lock | |
| id: 7342 | |
| type: mutex | |
| location #tries #collisions collisions [%] time [us] duration [%] histogram [log2(us)] | |
| --------- ------- ------------ --------------- ---------- ------------- --------------------- | |
| 'beam/erl_port_task.h':190 96833 101 0.1043 620 0.0051 | | | |
| undefined:0 0 0 0.0000 0 0.0000 | | | |
| ERTS_GLB_INLINE void | |
| erts_port_task_sched_lock(ErtsPortTaskSched *ptsp) | |
| { | |
| erts_mtx_lock(&ptsp->mtx); // <<-------------------- points to this lock | |
| } | |
| > lcnt:inspect(drv_ev_state, [{locations, true}, {combine, true}]). | |
| lock: drv_ev_state | |
| id: 128 | |
| type: mutex | |
| location #tries #collisions collisions [%] time [us] duration [%] histogram [log2(us)] | |
| --------- ------- ------------ --------------- ---------- ------------- --------------------- | |
| 'sys/common/erl_check_io.c':1723 9916 432 4.3566 16171 0.1317 | | | |
| 'sys/common/erl_check_io.c':825 21771 3 0.0138 849 0.0069 | | | |
| 'sys/common/erl_check_io.c':479 6897 2 0.0290 12 0.0001 | | | |
| undefined:0 0 0 0.0000 0 0.0000 | | | |
| > lcnt:inspect(code_server, [{locations, true}, {combine, true}]). | |
| lock: code_server | |
| id: 5 | |
| type: proclock | |
| location #tries #collisions collisions [%] time [us] duration [%] histogram [log2(us)] | |
| --------- ------- ------------ --------------- ---------- ------------- --------------------- | |
| 'beam/erl_process.c':9722 21952 0 0.0000 11916 0.0971 |X X. ....... .. | | |
| 'beam/erl_proc_sig_queue.c':685 7343 128 1.7432 3808 0.0310 |X x. . . . | | |
| 'beam/erl_message.c':374 7346 69 0.9393 847 0.0069 |X x . .. | | |
| 'beam/erl_proc_sig_queue.c':4172 6533 37 0.5664 102 0.0008 |X . . | | |
| 'beam/erl_proc_sig_queue.c':3175 5330 15 0.2814 1 0.0000 |X . | | |
| undefined:0 7346 602 8.1949 0 0.0000 | | | |
| 'beam/erl_process.c':9310 21950 0 0.0000 0 0.0000 | | |
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