diff options
Diffstat (limited to 'erts/emulator/beam/erl_cpu_topology.c')
| -rw-r--r-- | erts/emulator/beam/erl_cpu_topology.c | 45 |
1 files changed, 25 insertions, 20 deletions
diff --git a/erts/emulator/beam/erl_cpu_topology.c b/erts/emulator/beam/erl_cpu_topology.c index fe3693d0ca..88c6c34881 100644 --- a/erts/emulator/beam/erl_cpu_topology.c +++ b/erts/emulator/beam/erl_cpu_topology.c @@ -1,7 +1,7 @@ /* * %CopyrightBegin% * - * Copyright Ericsson AB 2010-2011. All Rights Reserved. + * Copyright Ericsson AB 2010-2013. All Rights Reserved. * * The contents of this file are subject to the Erlang Public License, * Version 1.1, (the "License"); you may not use this file except in @@ -34,7 +34,7 @@ #include "bif.h" #include "erl_cpu_topology.h" -#define ERTS_MAX_READER_GROUPS 8 +#define ERTS_MAX_READER_GROUPS 64 /* * Cpu topology hierarchy. @@ -486,7 +486,7 @@ erts_sched_check_cpu_bind_post_suspend(ErtsSchedulerData *esdp) erts_thr_set_main_status(1, (int) esdp->no); /* Make sure we check if we should bind to a cpu or not... */ - esdp->run_queue->flags |= ERTS_RUNQ_FLG_CHK_CPU_BIND; + (void) ERTS_RUNQ_FLGS_SET(esdp->run_queue, ERTS_RUNQ_FLG_CHK_CPU_BIND); } #endif @@ -498,9 +498,6 @@ erts_sched_check_cpu_bind(ErtsSchedulerData *esdp) erts_cpu_groups_map_t *cgm; erts_cpu_groups_callback_list_t *cgcl; erts_cpu_groups_callback_call_t *cgcc; -#ifdef ERTS_SMP - esdp->run_queue->flags &= ~ERTS_RUNQ_FLG_CHK_CPU_BIND; -#endif erts_smp_runq_unlock(esdp->run_queue); erts_smp_rwmtx_rwlock(&cpuinfo_rwmtx); cpu_id = scheduler2cpu_map[esdp->no].bind_id; @@ -623,30 +620,38 @@ write_schedulers_bind_change(erts_cpu_topology_t *cpudata, int size) int erts_init_scheduler_bind_type_string(char *how) { + ErtsCpuBindOrder order; + if (sys_strcmp(how, "u") == 0) - cpu_bind_order = ERTS_CPU_BIND_NONE; - else if (erts_bind_to_cpu(cpuinfo, -1) == -ENOTSUP) - return ERTS_INIT_SCHED_BIND_TYPE_NOT_SUPPORTED; - else if (!system_cpudata && !user_cpudata) - return ERTS_INIT_SCHED_BIND_TYPE_ERROR_NO_CPU_TOPOLOGY; + order = ERTS_CPU_BIND_NONE; else if (sys_strcmp(how, "db") == 0) - cpu_bind_order = ERTS_CPU_BIND_DEFAULT_BIND; + order = ERTS_CPU_BIND_DEFAULT_BIND; else if (sys_strcmp(how, "s") == 0) - cpu_bind_order = ERTS_CPU_BIND_SPREAD; + order = ERTS_CPU_BIND_SPREAD; else if (sys_strcmp(how, "ps") == 0) - cpu_bind_order = ERTS_CPU_BIND_PROCESSOR_SPREAD; + order = ERTS_CPU_BIND_PROCESSOR_SPREAD; else if (sys_strcmp(how, "ts") == 0) - cpu_bind_order = ERTS_CPU_BIND_THREAD_SPREAD; + order = ERTS_CPU_BIND_THREAD_SPREAD; else if (sys_strcmp(how, "tnnps") == 0) - cpu_bind_order = ERTS_CPU_BIND_THREAD_NO_NODE_PROCESSOR_SPREAD; + order = ERTS_CPU_BIND_THREAD_NO_NODE_PROCESSOR_SPREAD; else if (sys_strcmp(how, "nnps") == 0) - cpu_bind_order = ERTS_CPU_BIND_NO_NODE_PROCESSOR_SPREAD; + order = ERTS_CPU_BIND_NO_NODE_PROCESSOR_SPREAD; else if (sys_strcmp(how, "nnts") == 0) - cpu_bind_order = ERTS_CPU_BIND_NO_NODE_THREAD_SPREAD; + order = ERTS_CPU_BIND_NO_NODE_THREAD_SPREAD; else if (sys_strcmp(how, "ns") == 0) - cpu_bind_order = ERTS_CPU_BIND_NO_SPREAD; + order = ERTS_CPU_BIND_NO_SPREAD; else - return ERTS_INIT_SCHED_BIND_TYPE_ERROR_NO_BAD_TYPE; + return ERTS_INIT_SCHED_BIND_TYPE_ERROR_BAD_TYPE; + + if (order != ERTS_CPU_BIND_NONE) { + if (erts_bind_to_cpu(cpuinfo, -1) == -ENOTSUP) + return ERTS_INIT_SCHED_BIND_TYPE_NOT_SUPPORTED; + else if (!system_cpudata && !user_cpudata) + return ERTS_INIT_SCHED_BIND_TYPE_ERROR_NO_CPU_TOPOLOGY; + } + + cpu_bind_order = order; + return ERTS_INIT_SCHED_BIND_TYPE_SUCCESS; } |