1 /******************************************************************************/ 2 #ifdef JEMALLOC_H_TYPES 3 4 typedef struct tcache_bin_stats_s tcache_bin_stats_t; 5 typedef struct malloc_bin_stats_s malloc_bin_stats_t; 6 typedef struct malloc_large_stats_s malloc_large_stats_t; 7 typedef struct malloc_huge_stats_s malloc_huge_stats_t; 8 typedef struct arena_stats_s arena_stats_t; 9 typedef struct chunk_stats_s chunk_stats_t; 10 11 #endif /* JEMALLOC_H_TYPES */ 12 /******************************************************************************/ 13 #ifdef JEMALLOC_H_STRUCTS 14 15 struct tcache_bin_stats_s { 16 /* 17 * Number of allocation requests that corresponded to the size of this 18 * bin. 19 */ 20 uint64_t nrequests; 21 }; 22 23 struct malloc_bin_stats_s { 24 /* 25 * Total number of allocation/deallocation requests served directly by 26 * the bin. Note that tcache may allocate an object, then recycle it 27 * many times, resulting many increments to nrequests, but only one 28 * each to nmalloc and ndalloc. 29 */ 30 uint64_t nmalloc; 31 uint64_t ndalloc; 32 33 /* 34 * Number of allocation requests that correspond to the size of this 35 * bin. This includes requests served by tcache, though tcache only 36 * periodically merges into this counter. 37 */ 38 uint64_t nrequests; 39 40 /* 41 * Current number of regions of this size class, including regions 42 * currently cached by tcache. 43 */ 44 size_t curregs; 45 46 /* Number of tcache fills from this bin. */ 47 uint64_t nfills; 48 49 /* Number of tcache flushes to this bin. */ 50 uint64_t nflushes; 51 52 /* Total number of runs created for this bin's size class. */ 53 uint64_t nruns; 54 55 /* 56 * Total number of runs reused by extracting them from the runs tree for 57 * this bin's size class. 58 */ 59 uint64_t reruns; 60 61 /* Current number of runs in this bin. */ 62 size_t curruns; 63 }; 64 65 struct malloc_large_stats_s { 66 /* 67 * Total number of allocation/deallocation requests served directly by 68 * the arena. Note that tcache may allocate an object, then recycle it 69 * many times, resulting many increments to nrequests, but only one 70 * each to nmalloc and ndalloc. 71 */ 72 uint64_t nmalloc; 73 uint64_t ndalloc; 74 75 /* 76 * Number of allocation requests that correspond to this size class. 77 * This includes requests served by tcache, though tcache only 78 * periodically merges into this counter. 79 */ 80 uint64_t nrequests; 81 82 /* 83 * Current number of runs of this size class, including runs currently 84 * cached by tcache. 85 */ 86 size_t curruns; 87 }; 88 89 struct malloc_huge_stats_s { 90 /* 91 * Total number of allocation/deallocation requests served directly by 92 * the arena. 93 */ 94 uint64_t nmalloc; 95 uint64_t ndalloc; 96 97 /* Current number of (multi-)chunk allocations of this size class. */ 98 size_t curhchunks; 99 }; 100 101 struct arena_stats_s { 102 /* Number of bytes currently mapped. */ 103 size_t mapped; 104 105 /* 106 * Total number of purge sweeps, total number of madvise calls made, 107 * and total pages purged in order to keep dirty unused memory under 108 * control. 109 */ 110 uint64_t npurge; 111 uint64_t nmadvise; 112 uint64_t purged; 113 114 /* 115 * Number of bytes currently mapped purely for metadata purposes, and 116 * number of bytes currently allocated for internal metadata. 117 */ 118 size_t metadata_mapped; 119 size_t metadata_allocated; /* Protected via atomic_*_z(). */ 120 121 /* Per-size-category statistics. */ 122 size_t allocated_large; 123 uint64_t nmalloc_large; 124 uint64_t ndalloc_large; 125 uint64_t nrequests_large; 126 127 size_t allocated_huge; 128 uint64_t nmalloc_huge; 129 uint64_t ndalloc_huge; 130 131 /* One element for each large size class. */ 132 malloc_large_stats_t *lstats; 133 134 /* One element for each huge size class. */ 135 malloc_huge_stats_t *hstats; 136 }; 137 138 #endif /* JEMALLOC_H_STRUCTS */ 139 /******************************************************************************/ 140 #ifdef JEMALLOC_H_EXTERNS 141 142 extern bool opt_stats_print; 143 144 extern size_t stats_cactive; 145 146 void stats_print(void (*write)(void *, const char *), void *cbopaque, 147 const char *opts); 148 149 #endif /* JEMALLOC_H_EXTERNS */ 150 /******************************************************************************/ 151 #ifdef JEMALLOC_H_INLINES 152 153 #ifndef JEMALLOC_ENABLE_INLINE 154 size_t stats_cactive_get(void); 155 void stats_cactive_add(size_t size); 156 void stats_cactive_sub(size_t size); 157 #endif 158 159 #if (defined(JEMALLOC_ENABLE_INLINE) || defined(JEMALLOC_STATS_C_)) 160 JEMALLOC_INLINE size_t 161 stats_cactive_get(void) 162 { 163 164 return (atomic_read_z(&stats_cactive)); 165 } 166 167 JEMALLOC_INLINE void 168 stats_cactive_add(size_t size) 169 { 170 UNUSED size_t cactive; 171 172 assert(size > 0); 173 assert((size & chunksize_mask) == 0); 174 175 cactive = atomic_add_z(&stats_cactive, size); 176 assert(cactive - size < cactive); 177 } 178 179 JEMALLOC_INLINE void 180 stats_cactive_sub(size_t size) 181 { 182 UNUSED size_t cactive; 183 184 assert(size > 0); 185 assert((size & chunksize_mask) == 0); 186 187 cactive = atomic_sub_z(&stats_cactive, size); 188 assert(cactive + size > cactive); 189 } 190 #endif 191 192 #endif /* JEMALLOC_H_INLINES */ 193 /******************************************************************************/ 194
