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comparison src/os_cpu/solaris_sparc/vm/globals_solaris_sparc.hpp @ 12250:9044964f9163

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8024669: Native OOME when allocating after changes to maximum heap supporting Coops sizing on sparcv9 Summary: After changes in 8010722 the ergonomics for calculating the size of the heap that supports zero based compressed oops changed. This lead to the VM actually using zero based compressed oops. Due to low default HeapBaseMinAddress, the OS mapping in the application image at the same address, and limitations of the malloc implementation on Solaris this resulted in very little C heap available for the VM. So the VM immediately gives a native OOME when the machine has lots of physical memory (>=32G). The solution is to increase the HeapBaseMinAddress so that the VM has enough C heap. Reviewed-by: kvn, brutisso
author tschatzl
date Wed, 18 Sep 2013 13:18:52 +0200
parents 91bf0bdae37b
children de6a9e811145
comparison
equal deleted inserted replaced
12249:2f426063daea 12250:9044964f9163
33 define_pd_global(uintx, JVMInvokeMethodSlack, 12288); 33 define_pd_global(uintx, JVMInvokeMethodSlack, 12288);
34 define_pd_global(intx, CompilerThreadStackSize, 0); 34 define_pd_global(intx, CompilerThreadStackSize, 0);
35 35
36 // Used on 64 bit platforms for UseCompressedOops base address 36 // Used on 64 bit platforms for UseCompressedOops base address
37 #ifdef _LP64 37 #ifdef _LP64
38 define_pd_global(uintx, HeapBaseMinAddress, CONST64(4)*G); 38 // use 6G as default base address because by default the OS maps the application
39 // to 4G on Solaris-Sparc. This leaves at least 2G for the native heap.
40 define_pd_global(uintx, HeapBaseMinAddress, CONST64(6)*G);
39 #else 41 #else
40 define_pd_global(uintx, HeapBaseMinAddress, 2*G); 42 define_pd_global(uintx, HeapBaseMinAddress, 2*G);
41 #endif 43 #endif
42 44
43 45