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7079329: Adjust allocation prefetching for T4

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On T4 2 BIS instructions should be issued to prefetch 64 bytes

Reviewed-by: iveresov, phh, twisti
This commit is contained in:
Vladimir Kozlov 2011-08-16 16:59:46 -07:00
parent 080f790edc
commit 90651b2666
18 changed files with 299 additions and 129 deletions
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hotspot/src/share/vm/runtime/vm_version.cpp
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@ -46,6 +46,7 @@ const char* Abstract_VM_Version::_s_vm_release = Abstract_VM_Version::vm_release
const char* Abstract_VM_Version::_s_internal_vm_info_string = Abstract_VM_Version::internal_vm_info_string();
bool Abstract_VM_Version::_supports_cx8 = false;
unsigned int Abstract_VM_Version::_logical_processors_per_package = 1U;
int Abstract_VM_Version::_reserve_for_allocation_prefetch = 0;
#ifndef HOTSPOT_RELEASE_VERSION
#error HOTSPOT_RELEASE_VERSION must be defined