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comparison src/os/linux/vm/os_linux.cpp @ 12177:0d59407e7e09

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Merge
author jmasa
date Thu, 29 Aug 2013 06:53:16 -0700
parents 4c84d351cca9 88c255656030
children bb57d48691f5
comparison
equal deleted inserted replaced
12116:1624a68007bd 12177:0d59407e7e09
2765 2765
2766 void os::numa_make_global(char *addr, size_t bytes) { 2766 void os::numa_make_global(char *addr, size_t bytes) {
2767 Linux::numa_interleave_memory(addr, bytes); 2767 Linux::numa_interleave_memory(addr, bytes);
2768 } 2768 }
2769 2769
2770 // Define for numa_set_bind_policy(int). Setting the argument to 0 will set the
2771 // bind policy to MPOL_PREFERRED for the current thread.
2772 #define USE_MPOL_PREFERRED 0
2773
2770 void os::numa_make_local(char *addr, size_t bytes, int lgrp_hint) { 2774 void os::numa_make_local(char *addr, size_t bytes, int lgrp_hint) {
2775 // To make NUMA and large pages more robust when both enabled, we need to ease
2776 // the requirements on where the memory should be allocated. MPOL_BIND is the
2777 // default policy and it will force memory to be allocated on the specified
2778 // node. Changing this to MPOL_PREFERRED will prefer to allocate the memory on
2779 // the specified node, but will not force it. Using this policy will prevent
2780 // getting SIGBUS when trying to allocate large pages on NUMA nodes with no
2781 // free large pages.
2782 Linux::numa_set_bind_policy(USE_MPOL_PREFERRED);
2771 Linux::numa_tonode_memory(addr, bytes, lgrp_hint); 2783 Linux::numa_tonode_memory(addr, bytes, lgrp_hint);
2772 } 2784 }
2773 2785
2774 bool os::numa_topology_changed() { return false; } 2786 bool os::numa_topology_changed() { return false; }
2775 2787
2867 libnuma_dlsym(handle, "numa_available"))); 2879 libnuma_dlsym(handle, "numa_available")));
2868 set_numa_tonode_memory(CAST_TO_FN_PTR(numa_tonode_memory_func_t, 2880 set_numa_tonode_memory(CAST_TO_FN_PTR(numa_tonode_memory_func_t,
2869 libnuma_dlsym(handle, "numa_tonode_memory"))); 2881 libnuma_dlsym(handle, "numa_tonode_memory")));
2870 set_numa_interleave_memory(CAST_TO_FN_PTR(numa_interleave_memory_func_t, 2882 set_numa_interleave_memory(CAST_TO_FN_PTR(numa_interleave_memory_func_t,
2871 libnuma_dlsym(handle, "numa_interleave_memory"))); 2883 libnuma_dlsym(handle, "numa_interleave_memory")));
2884 set_numa_set_bind_policy(CAST_TO_FN_PTR(numa_set_bind_policy_func_t,
2885 libnuma_dlsym(handle, "numa_set_bind_policy")));
2872 2886
2873 2887
2874 if (numa_available() != -1) { 2888 if (numa_available() != -1) {
2875 set_numa_all_nodes((unsigned long*)libnuma_dlsym(handle, "numa_all_nodes")); 2889 set_numa_all_nodes((unsigned long*)libnuma_dlsym(handle, "numa_all_nodes"));
2876 // Create a cpu -> node mapping 2890 // Create a cpu -> node mapping
2933 os::Linux::numa_node_to_cpus_func_t os::Linux::_numa_node_to_cpus; 2947 os::Linux::numa_node_to_cpus_func_t os::Linux::_numa_node_to_cpus;
2934 os::Linux::numa_max_node_func_t os::Linux::_numa_max_node; 2948 os::Linux::numa_max_node_func_t os::Linux::_numa_max_node;
2935 os::Linux::numa_available_func_t os::Linux::_numa_available; 2949 os::Linux::numa_available_func_t os::Linux::_numa_available;
2936 os::Linux::numa_tonode_memory_func_t os::Linux::_numa_tonode_memory; 2950 os::Linux::numa_tonode_memory_func_t os::Linux::_numa_tonode_memory;
2937 os::Linux::numa_interleave_memory_func_t os::Linux::_numa_interleave_memory; 2951 os::Linux::numa_interleave_memory_func_t os::Linux::_numa_interleave_memory;
2952 os::Linux::numa_set_bind_policy_func_t os::Linux::_numa_set_bind_policy;
2938 unsigned long* os::Linux::_numa_all_nodes; 2953 unsigned long* os::Linux::_numa_all_nodes;
2939 2954
2940 bool os::pd_uncommit_memory(char* addr, size_t size) { 2955 bool os::pd_uncommit_memory(char* addr, size_t size) {
2941 uintptr_t res = (uintptr_t) ::mmap(addr, size, PROT_NONE, 2956 uintptr_t res = (uintptr_t) ::mmap(addr, size, PROT_NONE,
2942 MAP_PRIVATE|MAP_FIXED|MAP_NORESERVE|MAP_ANONYMOUS, -1, 0); 2957 MAP_PRIVATE|MAP_FIXED|MAP_NORESERVE|MAP_ANONYMOUS, -1, 0);