Mercurial > hg > graal-jvmci-8
diff src/os/linux/vm/os_linux.cpp @ 3885:3cd0157e1d4d
7082969: NUMA interleaving
Summary: Support interleaving on NUMA systems for collectors that don't have NUMA-awareness.
Reviewed-by: iveresov, ysr
Contributed-by: Tom Deneau <tom.deneau@amd.com>
| author | iveresov |
|---|---|
| date | Thu, 25 Aug 2011 02:57:46 -0700 |
| parents | 7c2653aefc46 |
| children | 9447b2fb6fcf |
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--- a/src/os/linux/vm/os_linux.cpp Tue Aug 23 11:06:30 2011 +0200 +++ b/src/os/linux/vm/os_linux.cpp Thu Aug 25 02:57:46 2011 -0700 @@ -2502,7 +2502,13 @@ int prot = exec ? PROT_READ|PROT_WRITE|PROT_EXEC : PROT_READ|PROT_WRITE; uintptr_t res = (uintptr_t) ::mmap(addr, size, prot, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0); - return res != (uintptr_t) MAP_FAILED; + if (res != (uintptr_t) MAP_FAILED) { + if (UseNUMAInterleaving) { + numa_make_global(addr, size); + } + return true; + } + return false; } // Define MAP_HUGETLB here so we can build HotSpot on old systems. @@ -2523,7 +2529,13 @@ (uintptr_t) ::mmap(addr, size, prot, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS|MAP_HUGETLB, -1, 0); - return res != (uintptr_t) MAP_FAILED; + if (res != (uintptr_t) MAP_FAILED) { + if (UseNUMAInterleaving) { + numa_make_global(addr, size); + } + return true; + } + return false; } return commit_memory(addr, size, exec); @@ -3115,6 +3127,10 @@ return NULL; } + if ((addr != NULL) && UseNUMAInterleaving) { + numa_make_global(addr, bytes); + } + return addr; }