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comparison src/os/solaris/vm/os_solaris.cpp @ 387:fad66fdcb7fc

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6673124: Runtime.availableProcessors / os::active_processor_count wrong if unused processor sets exist Reviewed-by: acorn, dholmes
author xlu
date Mon, 06 Oct 2008 11:39:34 -0700
parents 1ee8caae33af
children 67e8b4d06369
comparison
equal deleted inserted replaced
386:f1ecf9191140 387:fad66fdcb7fc
460 460
461 int os::active_processor_count() { 461 int os::active_processor_count() {
462 int online_cpus = sysconf(_SC_NPROCESSORS_ONLN); 462 int online_cpus = sysconf(_SC_NPROCESSORS_ONLN);
463 pid_t pid = getpid(); 463 pid_t pid = getpid();
464 psetid_t pset = PS_NONE; 464 psetid_t pset = PS_NONE;
465 // Are we running in a processor set? 465 // Are we running in a processor set or is there any processor set around?
466 if (pset_bind(PS_QUERY, P_PID, pid, &pset) == 0) { 466 if (pset_bind(PS_QUERY, P_PID, pid, &pset) == 0) {
467 if (pset != PS_NONE) { 467 uint_t pset_cpus;
468 uint_t pset_cpus; 468 // Query the number of cpus available to us.
469 // Query number of cpus in processor set 469 if (pset_info(pset, NULL, &pset_cpus, NULL) == 0) {
470 if (pset_info(pset, NULL, &pset_cpus, NULL) == 0) { 470 assert(pset_cpus > 0 && pset_cpus <= online_cpus, "sanity check");
471 assert(pset_cpus > 0 && pset_cpus <= online_cpus, "sanity check"); 471 _processors_online = pset_cpus;
472 _processors_online = pset_cpus; 472 return pset_cpus;
473 return pset_cpus;
474 }
475 } 473 }
476 } 474 }
477 // Otherwise return number of online cpus 475 // Otherwise return number of online cpus
478 return online_cpus; 476 return online_cpus;
479 } 477 }