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8166002: Emulate client build on platforms with reduced virtual address space

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The default VM ergonomics on Windows/x86 (32-bit) are changed to client like.

Reviewed-by: kvn, iveresov
This commit is contained in:
Jamsheed Mohammed C M 2017-01-17 21:38:07 -08:00
parent f02cb33818
commit 197ce5bafa
57 changed files with 261 additions and 124 deletions
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8
hotspot/src/share/vm/gc/shared/threadLocalAllocBuffer.cpp
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@ -233,9 +233,11 @@ void ThreadLocalAllocBuffer::startup_initialization() {
// If the C2 compiler is not present, no space is reserved.
// +1 for rounding up to next cache line, +1 to be safe
int lines = MAX2(AllocatePrefetchLines, AllocateInstancePrefetchLines) + 2;
_reserve_for_allocation_prefetch = (AllocatePrefetchDistance + AllocatePrefetchStepSize * lines) /
(int)HeapWordSize;
if (is_server_compilation_mode_vm()) {
int lines = MAX2(AllocatePrefetchLines, AllocateInstancePrefetchLines) + 2;
_reserve_for_allocation_prefetch = (AllocatePrefetchDistance + AllocatePrefetchStepSize * lines) /
(int)HeapWordSize;
}
#endif
// During jvm startup, the main (primordial) thread is initialized