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changed strategy to reduce contention for region search and vs2019 project fix

This commit is contained in:
Jakub Szymanski 2019-09-05 08:13:52 -07:00
parent 2be3208734
commit 1a7b1783fa
2 changed files with 12 additions and 4 deletions
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14
ide/vs2019/mimalloc-override.vcxproj
View File

@ -135,7 +135,7 @@
</PostBuildEvent>
<Link>
<EntryPointSymbol>DllEntry</EntryPointSymbol>
<AdditionalDependencies>kernel32.lib;%(AdditionalDependencies)</AdditionalDependencies>
<AdditionalDependencies>kernel32.lib;..\..\bin\mimalloc-redirect.lib;%(AdditionalDependencies)</AdditionalDependencies>
<IgnoreSpecificDefaultLibraries>
</IgnoreSpecificDefaultLibraries>
<ModuleDefinitionFile>
@ -180,7 +180,6 @@
<Optimization>MaxSpeed</Optimization>
<FunctionLevelLinking>true</FunctionLevelLinking>
<IntrinsicFunctions>true</IntrinsicFunctions>
<SDLCheck>true</SDLCheck>
<ConformanceMode>true</ConformanceMode>
<AdditionalIncludeDirectories>../../include</AdditionalIncludeDirectories>
<PreprocessorDefinitions>MI_SHARED_LIB;MI_SHARED_LIB_EXPORT;MI_MALLOC_OVERRIDE;_MBCS;%(PreprocessorDefinitions);NDEBUG</PreprocessorDefinitions>
@ -188,14 +187,23 @@
<AssemblerListingLocation>$(IntDir)</AssemblerListingLocation>
<WholeProgramOptimization>false</WholeProgramOptimization>
<RuntimeLibrary>MultiThreadedDLL</RuntimeLibrary>
<BufferSecurityCheck>false</BufferSecurityCheck>
<FavorSizeOrSpeed>Speed</FavorSizeOrSpeed>
<EnableFiberSafeOptimizations>true</EnableFiberSafeOptimizations>
<ControlFlowGuard>false</ControlFlowGuard>
<EnableEnhancedInstructionSet>AdvancedVectorExtensions</EnableEnhancedInstructionSet>
<FloatingPointModel>Fast</FloatingPointModel>
<AdditionalOptions>/Bv /Ob3 /d2FH4 /Gw /fp:fast /GL %(AdditionalOptions)</AdditionalOptions>
</ClCompile>
<Link>
<EnableCOMDATFolding>true</EnableCOMDATFolding>
<OptimizeReferences>true</OptimizeReferences>
<EntryPointSymbol>DllEntry</EntryPointSymbol>
<AdditionalDependencies>kernel32.lib;%(AdditionalDependencies)</AdditionalDependencies>
<AdditionalDependencies>kernel32.lib;..\..\bin\mimalloc-redirect.lib;%(AdditionalDependencies)</AdditionalDependencies>
<ModuleDefinitionFile>
</ModuleDefinitionFile>
<LinkTimeCodeGeneration>UseLinkTimeCodeGeneration</LinkTimeCodeGeneration>
<AdditionalOptions>/LTCG /USEPROFILE:AGGRESSIVE /d2:-threads16 /d2:-notypeopt %(AdditionalOptions)</AdditionalOptions>
</Link>
<PostBuildEvent>
<Command>

2
src/memory.c
View File

@ -389,7 +389,7 @@ void* _mi_mem_alloc_aligned(size_t size, size_t alignment, bool* commit, bool* l
// find a range of free blocks
void* p = NULL;
size_t count = mi_atomic_read(&regions_count);
size_t idx = 0; // tld->region_idx; // start at 0 to reuse low addresses? Or, use tld->region_idx to reduce contention?
size_t idx = tld->region_idx; // start at 0 to reuse low addresses? Or, use tld->region_idx to reduce contention?
for (size_t visited = 0; visited < count; visited++, idx++) {
if (idx >= count) idx = 0; // wrap around
if (!mi_region_try_alloc_blocks(idx, blocks, size, commit, large, is_zero, &p, id, tld)) return NULL; // error