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add segment count to internal statistics

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This commit is contained in:
daan 2019-07-10 19:54:46 -07:00
parent ef4359b272
commit 6deea16d2d
4 changed files with 35 additions and 22 deletions
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8
ide/vs2017/mimalloc.vcxproj
View File

@ -93,7 +93,7 @@
<SDLCheck>true</SDLCheck>
<ConformanceMode>true</ConformanceMode>
<AdditionalIncludeDirectories>../../include</AdditionalIncludeDirectories>
<PreprocessorDefinitions>MI_DEBUG=3;_MBCS;%(PreprocessorDefinitions);</PreprocessorDefinitions>
<PreprocessorDefinitions>MI_DEBUG=3;%(PreprocessorDefinitions);</PreprocessorDefinitions>
<CompileAs>Default</CompileAs>
</ClCompile>
<Lib>
@ -110,7 +110,7 @@
<SDLCheck>true</SDLCheck>
<ConformanceMode>true</ConformanceMode>
<AdditionalIncludeDirectories>../../include</AdditionalIncludeDirectories>
<PreprocessorDefinitions>MI_DEBUG=3;_MBCS;%(PreprocessorDefinitions);</PreprocessorDefinitions>
<PreprocessorDefinitions>MI_DEBUG=3;%(PreprocessorDefinitions);</PreprocessorDefinitions>
<CompileAs>Default</CompileAs>
</ClCompile>
<PostBuildEvent>
@ -137,7 +137,7 @@
<SDLCheck>true</SDLCheck>
<ConformanceMode>true</ConformanceMode>
<AdditionalIncludeDirectories>../../include</AdditionalIncludeDirectories>
<PreprocessorDefinitions>_MBCS;%(PreprocessorDefinitions);NDEBUG</PreprocessorDefinitions>
<PreprocessorDefinitions>%(PreprocessorDefinitions);NDEBUG</PreprocessorDefinitions>
<AssemblerOutput>AssemblyAndSourceCode</AssemblerOutput>
<AssemblerListingLocation>$(IntDir)</AssemblerListingLocation>
<WholeProgramOptimization>true</WholeProgramOptimization>
@ -168,7 +168,7 @@
<SDLCheck>true</SDLCheck>
<ConformanceMode>true</ConformanceMode>
<AdditionalIncludeDirectories>../../include</AdditionalIncludeDirectories>
<PreprocessorDefinitions>_MBCS;%(PreprocessorDefinitions);NDEBUG</PreprocessorDefinitions>
<PreprocessorDefinitions>%(PreprocessorDefinitions);NDEBUG</PreprocessorDefinitions>
<AssemblerOutput>AssemblyAndSourceCode</AssemblerOutput>
<AssemblerListingLocation>$(IntDir)</AssemblerListingLocation>
<WholeProgramOptimization>true</WholeProgramOptimization>

2
include/mimalloc-types.h
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@ -373,6 +373,8 @@ typedef struct mi_segment_queue_s {
// Segments thread local data
typedef struct mi_segments_tld_s {
mi_segment_queue_t small_free; // queue of segments with free small pages
size_t count; // current number of segments;
size_t peak_count; // peak number of segments
size_t current_size; // current size of all segments
size_t peak_size; // peak size of all segments
size_t cache_count; // number of segments in the cache

2
src/init.c
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@ -91,7 +91,7 @@ mi_decl_thread mi_heap_t* _mi_heap_default = (mi_heap_t*)&_mi_heap_empty;
static mi_tld_t tld_main = {
0,
&_mi_heap_main,
{ { NULL, NULL }, 0, 0, 0, 0, {NULL,NULL}, tld_main_stats }, // segments
{ { NULL, NULL }, 0, 0, 0, 0, 0, 0, {NULL,NULL}, tld_main_stats }, // segments
{ 0, NULL, NULL, 0, tld_main_stats }, // os
{ MI_STATS_NULL } // stats
};

45
src/segment.c
View File

@ -35,22 +35,6 @@ terms of the MIT license. A copy of the license can be found in the file
----------------------------------------------------------- */
#if (MI_DEBUG > 1)
static bool mi_segment_is_valid(mi_segment_t* segment) {
mi_assert_internal(segment != NULL);
mi_assert_internal(_mi_ptr_cookie(segment) == segment->cookie);
mi_assert_internal(segment->used <= segment->capacity);
mi_assert_internal(segment->abandoned <= segment->used);
size_t nfree = 0;
for (size_t i = 0; i < segment->capacity; i++) {
if (!segment->pages[i].segment_in_use) nfree++;
}
mi_assert_internal(nfree + segment->used == segment->capacity);
mi_assert_internal(segment->thread_id == _mi_thread_id()); // or 0
return true;
}
#endif
/* -----------------------------------------------------------
Queue of segments containing free pages
----------------------------------------------------------- */
@ -121,6 +105,31 @@ static void mi_segment_queue_insert_before(mi_segment_queue_t* queue, mi_segment
}
#if (MI_DEBUG > 1)
static size_t mi_segment_pagesize(mi_segment_t* segment) {
return ((size_t)1 << segment->page_shift);
}
static bool mi_segment_is_valid(mi_segment_t* segment) {
mi_assert_internal(segment != NULL);
mi_assert_internal(_mi_ptr_cookie(segment) == segment->cookie);
mi_assert_internal(segment->used <= segment->capacity);
mi_assert_internal(segment->abandoned <= segment->used);
size_t nfree = 0;
for (size_t i = 0; i < segment->capacity; i++) {
if (!segment->pages[i].segment_in_use) nfree++;
}
mi_assert_internal(nfree + segment->used == segment->capacity);
mi_assert_internal(segment->thread_id == _mi_thread_id()); // or 0
mi_assert_internal(segment->page_kind == MI_PAGE_HUGE ||
(mi_segment_pagesize(segment) * segment->capacity == segment->segment_size));
return true;
}
#endif
/* -----------------------------------------------------------
Segment size calculations
----------------------------------------------------------- */
// Start of the page available memory; can be used on uninitialized pages (only `segment_idx` must be set)
uint8_t* _mi_segment_page_start(const mi_segment_t* segment, const mi_page_t* page, size_t block_size, size_t* page_size)
{
@ -196,6 +205,8 @@ proves to be too small for certain workloads).
static void mi_segments_track_size(long segment_size, mi_segments_tld_t* tld) {
if (segment_size>=0) _mi_stat_increase(&tld->stats->segments,1);
else _mi_stat_decrease(&tld->stats->segments,1);
tld->count += (segment_size >= 0 ? 1 : -1);
if (tld->count > tld->peak_count) tld->peak_count = tld->count;
tld->current_size += segment_size;
if (tld->current_size > tld->peak_size) tld->peak_size = tld->current_size;
}
@ -725,7 +736,7 @@ static mi_page_t* mi_segment_huge_page_alloc(size_t size, mi_segments_tld_t* tld
mi_page_t* _mi_segment_page_alloc(size_t block_size, mi_segments_tld_t* tld, mi_os_tld_t* os_tld) {
mi_page_t* page;
if (block_size < MI_SMALL_PAGE_SIZE / 8)
if (block_size <= (MI_SMALL_PAGE_SIZE / 8))
// smaller blocks than 8kb (assuming MI_SMALL_PAGE_SIZE == 64kb)
page = mi_segment_small_page_alloc(tld,os_tld);
else if (block_size < (MI_LARGE_SIZE_MAX - sizeof(mi_segment_t)))