Update mimalloc to 3.3.0

ChangeLog.md

@@ -23,6 +23,7 @@ See docs/process.md for more on how version tagging works.
 - The emscripten_futux_wait API is now documented to explicitly allow spurious
   wakeups. This was part of an internal change to improve inter-thread
   communication. (#26659)
+- mimalloc was updated to 3.3.0. (#26696)
 
 5.0.6 - 04/14/26
 ----------------

system/lib/mimalloc/LICENSE

@@ -1,6 +1,6 @@
 MIT License
 
-Copyright (c) 2018-2021 Microsoft Corporation, Daan Leijen
+Copyright (c) 2018-2025 Microsoft Corporation, Daan Leijen
 
 Permission is hereby granted, free of charge, to any person obtaining a copy
 of this software and associated documentation files (the "Software"), to deal

system/lib/mimalloc/README.emscripten

@@ -1,5 +1,5 @@
 
-This contains mimalloc 8c532c32c3c96e5ba1f2283e032f69ead8add00f (v2.1.7) with
+This contains mimalloc 0ddf397796fbefa35b3278bd4431c2913a9892eb (v3.3.0) with
 Emscripten-specific changes.
 
 Origin: https://github.com/microsoft/mimalloc

system/lib/mimalloc/include/mimalloc-stats.h

@@ -0,0 +1,164 @@
+/* ----------------------------------------------------------------------------
+Copyright (c) 2024-2025, Microsoft Research, Daan Leijen
+This is free software; you can redistribute it and/or modify it under the
+terms of the MIT license. A copy of the license can be found in the file
+"LICENSE" at the root of this distribution.
+-----------------------------------------------------------------------------*/
+#pragma once
+#ifndef MIMALLOC_STATS_H
+#define MIMALLOC_STATS_H
+
+#include <mimalloc.h>
+#include <stdint.h>
+
+#define MI_STAT_VERSION   5  // increased on every backward incompatible change
+
+// alignment for atomic fields
+#if defined(_MSC_VER)
+#define mi_decl_align(a)        __declspec(align(a))
+#elif defined(__GNUC__)
+#define mi_decl_align(a)        __attribute__((aligned(a)))
+#elif __cplusplus >= 201103L
+#define mi_decl_align(a)        alignas(a)
+#else
+#define mi_decl_align(a)
+#endif
+
+
+// count allocation over time
+typedef struct mi_stat_count_s {
+  int64_t total;                              // total allocated
+  int64_t peak;                               // peak allocation
+  int64_t current;                            // current allocation
+} mi_stat_count_t;
+
+// counters only increase
+typedef struct mi_stat_counter_s {
+  int64_t total;                              // total count
+} mi_stat_counter_t;
+
+#define MI_STAT_FIELDS() \
+  MI_STAT_COUNT(pages)                      /* count of mimalloc pages */ \
+  MI_STAT_COUNT(reserved)                   /* reserved memory bytes */ \
+  MI_STAT_COUNT(committed)                  /* committed bytes */ \
+  MI_STAT_COUNTER(reset)                    /* reset bytes */ \
+  MI_STAT_COUNTER(purged)                   /* purged bytes */ \
+  MI_STAT_COUNT(page_committed)             /* committed memory inside pages */ \
+  MI_STAT_COUNT(pages_abandoned)            /* abandonded pages count */ \
+  MI_STAT_COUNT(threads)                    /* number of threads */ \
+  MI_STAT_COUNT(malloc_normal)              /* allocated bytes <= MI_LARGE_OBJ_SIZE_MAX */ \
+  MI_STAT_COUNT(malloc_huge)                /* allocated bytes in huge pages */ \
+  MI_STAT_COUNT(malloc_requested)           /* malloc requested bytes */ \
+  \
+  MI_STAT_COUNTER(mmap_calls) \
+  MI_STAT_COUNTER(commit_calls) \
+  MI_STAT_COUNTER(reset_calls) \
+  MI_STAT_COUNTER(purge_calls) \
+  MI_STAT_COUNTER(arena_count)              /* number of memory arena's */ \
+  MI_STAT_COUNTER(malloc_normal_count)      /* number of blocks <= MI_LARGE_OBJ_SIZE_MAX */ \
+  MI_STAT_COUNTER(malloc_huge_count)        /* number of huge bloks */ \
+  MI_STAT_COUNTER(malloc_guarded_count)     /* number of allocations with guard pages */ \
+  \
+  /* internal statistics */ \
+  MI_STAT_COUNTER(arena_rollback_count) \
+  MI_STAT_COUNTER(arena_purges) \
+  MI_STAT_COUNTER(pages_extended)           /* number of page extensions */ \
+  MI_STAT_COUNTER(pages_retire)             /* number of pages that are retired */ \
+  MI_STAT_COUNTER(page_searches)            /* total pages searched for a fresh page */ \
+  MI_STAT_COUNTER(page_searches_count)      /* searched count for a fresh page */ \
+  /* only on v1 and v2 */ \
+  MI_STAT_COUNT(segments) \
+  MI_STAT_COUNT(segments_abandoned) \
+  MI_STAT_COUNT(segments_cache) \
+  MI_STAT_COUNT(_segments_reserved) \
+  /* only on v3 */ \
+  MI_STAT_COUNT(heaps) \
+  MI_STAT_COUNT(theaps) \
+  MI_STAT_COUNTER(pages_reclaim_on_alloc) \
+  MI_STAT_COUNTER(pages_reclaim_on_free) \
+  MI_STAT_COUNTER(pages_reabandon_full) \
+  MI_STAT_COUNTER(pages_unabandon_busy_wait) \
+  MI_STAT_COUNTER(heaps_delete_wait)
+
+// Size bins for chunks
+typedef enum mi_chunkbin_e {
+  MI_CBIN_SMALL,    // slice_count == 1
+  MI_CBIN_OTHER,    // slice_count: any other from the other bins, and 1 <= slice_count <= MI_BCHUNK_BITS
+  MI_CBIN_MEDIUM,   // slice_count == 8
+  MI_CBIN_LARGE,    // slice_count == MI_SIZE_BITS  (only used if MI_ENABLE_LARGE_PAGES is 1)
+  MI_CBIN_HUGE,     // slice_count > MI_BCHUNK_BITS
+  MI_CBIN_NONE,     // no bin assigned yet (the chunk is completely free)
+  MI_CBIN_COUNT
+} mi_chunkbin_t;
+
+
+// Define the statistics structure
+#define MI_BIN_HUGE             (73U)   // see types.h
+#define MI_STAT_COUNT(stat)     mi_stat_count_t stat;
+#define MI_STAT_COUNTER(stat)   mi_stat_counter_t stat;
+
+typedef struct mi_stats_s
+{
+  size_t size;          // size of the mi_stats_t structure 
+  size_t version;       
+
+  mi_decl_align(8)  MI_STAT_FIELDS()
+
+  // future extension
+  mi_stat_count_t   _stat_reserved[4];
+  mi_stat_counter_t _stat_counter_reserved[4];
+
+  // size segregated statistics
+  mi_stat_count_t   malloc_bins[MI_BIN_HUGE+1];   // allocation per size bin
+  mi_stat_count_t   page_bins[MI_BIN_HUGE+1];     // pages allocated per size bin
+  mi_stat_count_t   chunk_bins[MI_CBIN_COUNT];    // chunks per page sizes
+} mi_stats_t;
+
+#undef MI_STAT_COUNT
+#undef MI_STAT_COUNTER
+
+// helper
+#if __cplusplus
+#define MI_STATS_ZERO_INIT  { }     /* empty initializer to prevent running the constructor (with msvc) */
+#else
+#define MI_STATS_ZERO_INIT  { 0 }   /* C zero initialize */
+#endif
+
+#define mi_stats_t_decl(name)  mi_stats_t name = MI_STATS_ZERO_INIT; name.size = sizeof(mi_stats_t); name.version = MI_STAT_VERSION;
+
+// Exported definitions
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+// stats from a heap
+mi_decl_export bool    mi_heap_stats_get(mi_heap_t* heap, mi_stats_t* stats) mi_attr_noexcept;
+mi_decl_export char*   mi_heap_stats_get_json(mi_heap_t* heap, size_t buf_size, char* buf) mi_attr_noexcept;      // use mi_free to free the result if the input buf == NULL
+mi_decl_export void    mi_heap_stats_print_out(mi_heap_t* heap, mi_output_fun* out, void* arg) mi_attr_noexcept;
+
+// stats from a subprocess and its heaps aggregated
+mi_decl_export bool    mi_subproc_stats_get(mi_subproc_id_t subproc_id, mi_stats_t* stats) mi_attr_noexcept;
+mi_decl_export char*   mi_subproc_stats_get_json(mi_subproc_id_t subproc_id, size_t buf_size, char* buf) mi_attr_noexcept;      // use mi_free to free the result if the input buf == NULL
+mi_decl_export void    mi_subproc_stats_print_out(mi_subproc_id_t subproc_id, mi_output_fun* out, void* arg) mi_attr_noexcept;
+// print subprocess and all its heap stats segregated
+mi_decl_export void    mi_subproc_heap_stats_print_out(mi_subproc_id_t subproc_id, mi_output_fun* out, void* arg) mi_attr_noexcept;
+
+// stats aggregated for the current subprocess and all its heaps.
+mi_decl_export bool    mi_stats_get(mi_stats_t* stats) mi_attr_noexcept;
+mi_decl_export char*   mi_stats_get_json(size_t buf_size, char* buf) mi_attr_noexcept;      // use mi_free to free the result if the input buf == NULL
+mi_decl_export void    mi_stats_print_out(mi_output_fun* out, void* arg) mi_attr_noexcept;
+
+// add the stats of the heap to the subprocess and clear the heap stats
+mi_decl_export void    mi_heap_stats_merge_to_subproc(mi_heap_t* heap);
+
+// stats from the subprocess without aggregating its heaps
+mi_decl_export bool    mi_subproc_stats_get_exclusive(mi_subproc_id_t subproc_id, mi_stats_t* stats) mi_attr_noexcept;
+
+mi_decl_export char*   mi_stats_as_json(mi_stats_t* stats, size_t buf_size, char* buf) mi_attr_noexcept;      // use mi_free to free the result if the input buf == NULL
+mi_decl_export size_t  mi_stats_get_bin_size(size_t bin) mi_attr_noexcept;
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif // MIMALLOC_STATS_H