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experiment with smaller segment size (32MiB) and finer minimal commit (1MiB)

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Daan Leijen 2022-11-17 18:57:45 -08:00
parent ba8c0f8903
commit b940543cd5
1 changed files with 2 additions and 2 deletions
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4
include/mimalloc-types.h
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@ -132,7 +132,7 @@ typedef int32_t mi_ssize_t;
// Main tuning parameters for segment and page sizes // Main tuning parameters for segment and page sizes
// Sizes for 64-bit (usually divide by two for 32-bit) // Sizes for 64-bit (usually divide by two for 32-bit)
#define MI_SEGMENT_SLICE_SHIFT (13 + MI_INTPTR_SHIFT) // 64KiB (32KiB on 32-bit) #define MI_SEGMENT_SLICE_SHIFT (12 + MI_INTPTR_SHIFT) // 64KiB (32KiB on 32-bit)
#if MI_INTPTR_SIZE > 4 #if MI_INTPTR_SIZE > 4
#define MI_SEGMENT_SHIFT (10 + MI_SEGMENT_SLICE_SHIFT) // 64MiB #define MI_SEGMENT_SHIFT (10 + MI_SEGMENT_SLICE_SHIFT) // 64MiB
@ -324,7 +324,7 @@ typedef enum mi_segment_kind_e {
// is still tracked in fine-grained MI_COMMIT_SIZE chunks) // is still tracked in fine-grained MI_COMMIT_SIZE chunks)
// ------------------------------------------------------ // ------------------------------------------------------
#define MI_MINIMAL_COMMIT_SIZE (2*MI_MiB) #define MI_MINIMAL_COMMIT_SIZE (MI_MiB)
#define MI_COMMIT_SIZE (MI_SEGMENT_SLICE_SIZE) // 64KiB #define MI_COMMIT_SIZE (MI_SEGMENT_SLICE_SIZE) // 64KiB
#define MI_COMMIT_MASK_BITS (MI_SEGMENT_SIZE / MI_COMMIT_SIZE) #define MI_COMMIT_MASK_BITS (MI_SEGMENT_SIZE / MI_COMMIT_SIZE)
#define MI_COMMIT_MASK_FIELD_BITS MI_SIZE_BITS #define MI_COMMIT_MASK_FIELD_BITS MI_SIZE_BITS