#define JEMALLOC_STATS_C_
#include "jemalloc/internal/jemalloc_preamble.h"
#include "jemalloc/internal/jemalloc_internal_includes.h"
#include "jemalloc/internal/assert.h"
#include "jemalloc/internal/ctl.h"
#include "jemalloc/internal/emitter.h"
#include "jemalloc/internal/mutex.h"
#include "jemalloc/internal/mutex_prof.h"
const char *global_mutex_names[mutex_prof_num_global_mutexes] = {
#define OP(mtx) #mtx,
MUTEX_PROF_GLOBAL_MUTEXES
#undef OP
};
const char *arena_mutex_names[mutex_prof_num_arena_mutexes] = {
#define OP(mtx) #mtx,
MUTEX_PROF_ARENA_MUTEXES
#undef OP
};
#define CTL_GET(n, v, t) do { \
size_t sz = sizeof(t); \
xmallctl(n, (void *)v, &sz, NULL, 0); \
} while (0)
#define CTL_M2_GET(n, i, v, t) do { \
size_t mib[CTL_MAX_DEPTH]; \
size_t miblen = sizeof(mib) / sizeof(size_t); \
size_t sz = sizeof(t); \
xmallctlnametomib(n, mib, &miblen); \
mib[2] = (i); \
xmallctlbymib(mib, miblen, (void *)v, &sz, NULL, 0); \
} while (0)
#define CTL_M2_M4_GET(n, i, j, v, t) do { \
size_t mib[CTL_MAX_DEPTH]; \
size_t miblen = sizeof(mib) / sizeof(size_t); \
size_t sz = sizeof(t); \
xmallctlnametomib(n, mib, &miblen); \
mib[2] = (i); \
mib[4] = (j); \
xmallctlbymib(mib, miblen, (void *)v, &sz, NULL, 0); \
} while (0)
/******************************************************************************/
/* Data. */
bool opt_stats_print = false;
char opt_stats_print_opts[stats_print_tot_num_options+1] = "";
/******************************************************************************/
static uint64_t
rate_per_second(uint64_t value, uint64_t uptime_ns) {
uint64_t billion = 1000000000;
if (uptime_ns == 0 || value == 0) {
return 0;
}
if (uptime_ns < billion) {
return value;
} else {
uint64_t uptime_s = uptime_ns / billion;
return value / uptime_s;
}
}
/* Calculate x.yyy and output a string (takes a fixed sized char array). */
static bool
get_rate_str(uint64_t dividend, uint64_t divisor, char str[6]) {
if (divisor == 0 || dividend > divisor) {
/* The rate is not supposed to be greater than 1. */
return true;
}
if (dividend > 0) {
assert(UINT64_MAX / dividend >= 1000);
}
unsigned n = (unsigned)((dividend * 1000) / divisor);
if (n < 10) {
malloc_snprintf(str, 6, "0.00%u", n);
} else if (n < 100) {
malloc_snprintf(str, 6, "0.0%u", n);
} else if (n < 1000) {
malloc_snprintf(str, 6, "0.%u", n);
} else {
malloc_snprintf(str, 6, "1");
}
return false;
}
#define MUTEX_CTL_STR_MAX_LENGTH 128
static void
gen_mutex_ctl_str(char *str, size_t buf_len, const char *prefix,
const char *mutex, const char *counter) {
malloc_snprintf(str, buf_len, "stats.%s.%s.%s", prefix, mutex, counter);
}
static void
mutex_stats_init_cols(emitter_row_t *row, const char *table_name,
emitter_col_t *name,
emitter_col_t col_uint64_t[mutex_prof_num_uint64_t_counters],
emitter_col_t col_uint32_t[mutex_prof_num_uint32_t_counters]) {
mutex_prof_uint64_t_counter_ind_t k_uint64_t = 0;
mutex_prof_uint32_t_counter_ind_t k_uint32_t = 0;
emitter_col_t *col;
if (name != NULL) {
emitter_col_init(name, row);
name->justify = emitter_justify_left;
name->width = 21;
name->type = emitter_type_title;
name->str_val = table_name;
}
#define WIDTH_uint32_t 12
#define WIDTH_uint64_t 16
#define OP(counter, counter_type, human, derived, base_counter) \
col = &col_##counter_type[k_##counter_type]; \
++k_##counter_type; \
emitter_col_init(col, row); \
col->justify = emitter_justify_right; \
col->width = derived ? 8 : WIDTH_##counter_type; \
col->type = emitter_type_title; \
col->str_val = human;
MUTEX_PROF_COUNTERS
#undef OP
#undef WIDTH_uint32_t
#undef WIDTH_uint64_t
col_uint64_t[mutex_counter_total_wait_time_ps].width = 10;
}
static void
mutex_stats_read_global(const char *name, emitter_col_t *col_name,
emitter_col_t col_uint64_t[mutex_prof_num_uint64_t_counters],
emitter_col_t col_uint32_t[mutex_prof_num_uint32_t_counters],
uint64_t uptime) {
char cmd[MUTEX_CTL_STR_MAX_LENGTH];
col_name->str_val = name;
emitter_col_t *dst;
#define EMITTER_TYPE_uint32_t emitter_type_uint32
#define EMITTER_TYPE_uint64_t emitter_type_uint64
#define OP(counter, counter_type, human, derived, base_counter) \
dst = &col_##counter_type[mutex_counter_##counter]; \
dst->type = EMITTER_TYPE_##counter_type; \
if (!derived) { \
gen_mutex_ctl_str(cmd, MUTEX_CTL_STR_MAX_LENGTH, \
"mutexes", name, #counter); \
CTL_GET(cmd, (counter_type *)&dst->bool_val, counter_type); \
} else { \
emitter_col_t *base = &col_##counter_type[mutex_counter_##base_counter]; \
dst->counter_type##_val = rate_per_second(base->counter_type##_val, uptime); \
}
MUTEX_PROF_COUNTERS
#undef OP
#undef EMITTER_TYPE_uint32_t
#undef EMITTER_TYPE_uint64_t
}
static void
mutex_stats_read_arena(unsigned arena_ind, mutex_prof_arena_ind_t mutex_ind,
const char *name, emitter_col_t *col_name,
emitter_col_t col_uint64_t[mutex_prof_num_uint64_t_counters],
emitter_col_t col_uint32_t[mutex_prof_num_uint32_t_counters],
uint64_t uptime) {
char cmd[MUTEX_CTL_STR_MAX_LENGTH];
col_name->str_val = name;
emitter_col_t *dst;
#define EMITTER_TYPE_uint32_t emitter_type_uint32
#define EMITTER_TYPE_uint64_t emitter_type_uint64
#define OP(counter, counter_type, human, derived, base_counter) \
dst = &col_##counter_type[mutex_counter_##counter]; \
dst->type = EMITTER_TYPE_##counter_type; \
if (!derived) { \
gen_mutex_ctl_str(cmd, MUTEX_CTL_STR_MAX_LENGTH, \
"arenas.0.mutexes", arena_mutex_names[mutex_ind], #counter);\
CTL_M2_GET(cmd, arena_ind, (counter_type *)&dst->bool_val, counter_type); \
} else { \
emitter_col_t *base = &col_##counter_type[mutex_counter_##base_counter]; \
dst->counter_type##_val = rate_per_second(base->counter_type##_val, uptime); \
}
MUTEX_PROF_COUNTERS
#undef OP
#undef EMITTER_TYPE_uint32_t
#undef EMITTER_TYPE_uint64_t
}
static void
mutex_stats_read_arena_bin(unsigned arena_ind, unsigned bin_ind,
emitter_col_t col_uint64_t[mutex_prof_num_uint64_t_counters],
emitter_col_t col_uint32_t[mutex_prof_num_uint32_t_counters],
uint64_t uptime) {
char cmd[MUTEX_CTL_STR_MAX_LENGTH];
emitter_col_t *dst;
#define EMITTER_TYPE_uint32_t emitter_type_uint32
#define EMITTER_TYPE_uint64_t emitter_type_uint64
#define OP(counter, counter_type, human, derived, base_counter) \
dst = &col_##counter_type[mutex_counter_##counter]; \
dst->type = EMITTER_TYPE_##counter_type; \
if (!derived) { \
gen_mutex_ctl_str(cmd, MUTEX_CTL_STR_MAX_LENGTH, \
"arenas.0.bins.0","mutex", #counter); \
CTL_M2_M4_GET(cmd, arena_ind, bin_ind, \
(counter_type *)&dst->bool_val, counter_type); \
} else { \
emitter_col_t *base = &col_##counter_type[mutex_counter_##base_counter]; \
dst->counter_type##_val = rate_per_second(base->counter_type##_val, uptime); \
}
MUTEX_PROF_COUNTERS
#undef OP
#undef EMITTER_TYPE_uint32_t
#undef EMITTER_TYPE_uint64_t
}
/* "row" can be NULL to avoid emitting in table mode. */
static void
mutex_stats_emit(emitter_t *emitter, emitter_row_t *row,
emitter_col_t col_uint64_t[mutex_prof_num_uint64_t_counters],
emitter_col_t col_uint32_t[mutex_prof_num_uint32_t_counters]) {
if (row != NULL) {
emitter_table_row(emitter, row);
}
mutex_prof_uint64_t_counter_ind_t k_uint64_t = 0;
mutex_prof_uint32_t_counter_ind_t k_uint32_t = 0;
emitter_col_t *col;
#define EMITTER_TYPE_uint32_t emitter_type_uint32
#define EMITTER_TYPE_uint64_t emitter_type_uint64
#define OP(counter, type, human, derived, base_counter) \
if (!derived) { \
col = &col_##type[k_##type]; \
++k_##type; \
emitter_json_kv(emitter, #counter, EMITTER_TYPE_##type, \
(const void *)&col->bool_val); \
}
MUTEX_PROF_COUNTERS;
#undef OP
#undef EMITTER_TYPE_uint32_t
#undef EMITTER_TYPE_uint64_t
}
#define COL(row_name, column_name, left_or_right, col_width, etype) \
emitter_col_t col_##column_name; \
emitter_col_init(&col_##column_name, &row_name); \
col_##column_name.justify = emitter_justify_##left_or_right; \
col_##column_name.width = col_width; \
col_##column_name.type = emitter_type_##etype;
#define COL_HDR(row_name, column_name, human, left_or_right, col_width, etype) \
COL(row_name, column_name, left_or_right, col_width, etype) \
emitter_col_t header_##column_name; \
emitter_col_init(&header_##column_name, &header_##row_name); \
header_##column_name.justify = emitter_justify_##left_or_right; \
header_##column_name.width = col_width; \
header_##column_name.type = emitter_type_title; \
header_##column_name.str_val = human ? human : #column_name;
static void
stats_arena_bins_print(emitter_t *emitter, bool mutex, unsigned i, uint64_t uptime) {
size_t page;
bool in_gap, in_gap_prev;
unsigned nbins, j;
CTL_GET("arenas.page", &page, size_t);
CTL_GET("arenas.nbins", &nbins, unsigned);
emitter_row_t header_row;
emitter_row_init(&header_row);
emitter_row_t row;
emitter_row_init(&row);
COL_HDR(row, size, NULL, right, 20, size)
COL_HDR(row, ind, NULL, right, 4, unsigned)
COL_HDR(row, allocated, NULL, right, 13, uint64)
COL_HDR(row, nmalloc, NULL, right, 13, uint64)
COL_HDR(row, nmalloc_ps, "(#/sec)", right, 8, uint64)
COL_HDR(row, ndalloc, NULL, right, 13, uint64)
COL_HDR(row, ndalloc_ps, "(#/sec)", right, 8, uint64)
COL_HDR(row, nrequests, NULL, right, 13, uint64)
COL_HDR(row, nrequests_ps, "(#/sec)", right, 10, uint64)
COL_HDR(row, nshards, NULL, right, 9, unsigned)
COL_HDR(row, curregs, NULL, right, 13, size)
COL_HDR(row, curslabs, NULL, right, 13, size)
COL_HDR(row, nonfull_slabs, NULL, right, 15, size)
COL_HDR(row, regs, NULL, right, 5, unsigned)
COL_HDR(row, pgs, NULL, right, 4, size)
/* To buffer a right- and left-justified column. */
COL_HDR(row, justify_spacer, NULL, right, 1, title)
COL_HDR(row, util, NULL, right, 6, title)
COL_HDR(row, nfills, NULL, right, 13, uint64)
COL_HDR(row, nfills_ps, "(#/sec)", right, 8, uint64)
COL_HDR(row, nflushes, NULL, right, 13, uint64)
COL_HDR(row, nflushes_ps, "(#/sec)", right, 8, uint64)
COL_HDR(row, nslabs, NULL, right, 13, uint64)
COL_HDR(row, nreslabs, NULL, right, 13, uint64)
COL_HDR(row, nreslabs_ps, "(#/sec)", right, 8, uint64)
/* Don't want to actually print the name. */
header_justify_spacer.str_val = " ";
col_justify_spacer.str_val = " ";
emitter_col_t col_mutex64[mutex_prof_num_uint64_t_counters];
emitter_col_t col_mutex32[mutex_prof_num_uint32_t_counters];
emitter_col_t header_mutex64[mutex_prof_num_uint64_t_counters];
emitter_col_t header_mutex32[mutex_prof_num_uint32_t_counters];
if (mutex) {
mutex_stats_init_cols(&row, NULL, NULL, col_mutex64,
col_mutex32);
mutex_stats_init_cols(&header_row, NULL, NULL, header_mutex64,
header_mutex32);
}
/*
* We print a "bins:" header as part of the table row; we need to adjust
* the header size column to compensate.
*/
header_size.width -=5;
emitter_table_printf(emitter, "bins:");
emitter_table_row(emitter, &header_row);
emitter_json_array_kv_begin(emitter, "bins");
for (j = 0, in_gap = false; j < nbins; j++) {
uint64_t nslabs;
size_t reg_size, slab_size, curregs;
size_t curslabs;
size_t nonfull_slabs;
uint32_t nregs, nshards;
uint64_t nmalloc, ndalloc, nrequests, nfills, nflushes;
uint64_t nreslabs;
CTL_M2_M4_GET("stats.arenas.0.bins.0.nslabs", i, j, &nslabs,
uint64_t);
in_gap_prev = in_gap;
in_gap = (nslabs == 0);
if (in_gap_prev && !in_gap) {
emitter_table_printf(emitter,
" ---\n");
}
CTL_M2_GET("arenas.bin.0.size", j, ®_size, size_t);
CTL_M2_GET("arenas.bin.0.nregs", j, &nregs, uint32_t);
CTL_M2_GET("arenas.bin.0.slab_size", j, &slab_size, size_t);
CTL_M2_GET("arenas.bin.0.nshards", j, &nshards, uint32_t);
CTL_M2_M4_GET("stats.arenas.0.bins.0.nmalloc", i, j, &nmalloc,
uint64_t);
CTL_M2_M4_GET("stats.arenas.0.bins.0.ndalloc", i, j, &ndalloc,
uint64_t);
CTL_M2_M4_GET("stats.arenas.0.bins.0.curregs", i, j, &curregs,
size_t);
CTL_M2_M4_GET("stats.arenas.0.bins.0.nrequests", i, j,
&nrequests, uint64_t);
CTL_M2_M4_GET("stats.arenas.0.bins.0.nfills", i, j, &nfills,
uint64_t);
CTL_M2_M4_GET("stats.arenas.0.bins.0.nflushes", i, j, &nflushes,
uint64_t);
CTL_M2_M4_GET("stats.arenas.0.bins.0.nreslabs", i, j, &nreslabs,
uint64_t);
CTL_M2_M4_GET("stats.arenas.0.bins.0.curslabs", i, j, &curslabs,
size_t);
CTL_M2_M4_GET("stats.arenas.0.bins.0.nonfull_slabs", i, j, &nonfull_slabs,
size_t);
if (mutex) {
mutex_stats_read_arena_bin(i, j, col_mutex64,
col_mutex32, uptime);
}
emitter_json_object_begin(emitter);
emitter_json_kv(emitter, "nmalloc", emitter_type_uint64,
&nmalloc);
emitter_json_kv(emitter, "ndalloc", emitter_type_uint64,
&ndalloc);
emitter_json_kv(emitter, "curregs", emitter_type_size,
&curregs);
emitter_json_kv(emitter, "nrequests", emitter_type_uint64,
&nrequests);
emitter_json_kv(emitter, "nfills", emitter_type_uint64,
&nfills);
emitter_json_kv(emitter, "nflushes", emitter_type_uint64,
&nflushes);
emitter_json_kv(emitter, "nreslabs", emitter_type_uint64,
&nreslabs);
emitter_json_kv(emitter, "curslabs", emitter_type_size,
&curslabs);
emitter_json_kv(emitter, "nonfull_slabs", emitter_type_size,
&nonfull_slabs);
if (mutex) {
emitter_json_object_kv_begin(emitter, "mutex");
mutex_stats_emit(emitter, NULL, col_mutex64,
col_mutex32);
emitter_json_object_end(emitter);
}
emitter_json_object_end(emitter);
size_t availregs = nregs * curslabs;
char util[6];
if (get_rate_str((uint64_t)curregs, (uint64_t)availregs, util))
{
if (availregs == 0) {
malloc_snprintf(util, sizeof(util), "1");
} else if (curregs > availregs) {
/*
* Race detected: the counters were read in
* separate mallctl calls and concurrent
* operations happened in between. In this case
* no meaningful utilization can be computed.
*/
malloc_snprintf(util, sizeof(util), " race");
} else {
not_reached();
}
}
col_size.size_val = reg_size;
col_ind.unsigned_val = j;
col_allocated.size_val = curregs * reg_size;
col_nmalloc.uint64_val = nmalloc;
col_nmalloc_ps.uint64_val = rate_per_second(nmalloc, uptime);
col_ndalloc.uint64_val = ndalloc;
col_ndalloc_ps.uint64_val = rate_per_second(ndalloc, uptime);
col_nrequests.uint64_val = nrequests;
col_nrequests_ps.uint64_val = rate_per_second(nrequests, uptime);
col_nshards.unsigned_val = nshards;
col_curregs.size_val = curregs;
col_curslabs.size_val = curslabs;
col_nonfull_slabs.size_val = nonfull_slabs;
col_regs.unsigned_val = nregs;
col_pgs.size_val = slab_size / page;
col_util.str_val = util;
col_nfills.uint64_val = nfills;
col_nfills_ps.uint64_val = rate_per_second(nfills, uptime);
col_nflushes.uint64_val = nflushes;
col_nflushes_ps.uint64_val = rate_per_second(nflushes, uptime);
col_nslabs.uint64_val = nslabs;
col_nreslabs.uint64_val = nreslabs;
col_nreslabs_ps.uint64_val = rate_per_second(nreslabs, uptime);
/*
* Note that mutex columns were initialized above, if mutex ==
* true.
*/
emitter_table_row(emitter, &row);
}
emitter_json_array_end(emitter); /* Close "bins". */
if (in_gap) {
emitter_table_printf(emitter, " ---\n");
}
}
static void
stats_arena_lextents_print(emitter_t *emitter, unsigned i, uint64_t uptime) {
unsigned nbins, nlextents, j;
bool in_gap, in_gap_prev;
CTL_GET("arenas.nbins", &nbins, unsigned);
CTL_GET("arenas.nlextents", &nlextents, unsigned);
emitter_row_t header_row;
emitter_row_init(&header_row);
emitter_row_t row;
emitter_row_init(&row);
COL_HDR(row, size, NULL, right, 20, size)
COL_HDR(row, ind, NULL, right, 4, unsigned)
COL_HDR(row, allocated, NULL, right, 13, size)
COL_HDR(row, nmalloc, NULL, right, 13, uint64)
COL_HDR(row, nmalloc_ps, "(#/sec)", right, 8, uint64)
COL_HDR(row, ndalloc, NULL, right, 13, uint64)
COL_HDR(row, ndalloc_ps, "(#/sec)", right, 8, uint64)
COL_HDR(row, nrequests, NULL, right, 13, uint64)
COL_HDR(row, nrequests_ps, "(#/sec)", right, 8, uint64)
COL_HDR(row, curlextents, NULL, right, 13, size)
/* As with bins, we label the large extents table. */
header_size.width -= 6;
emitter_table_printf(emitter, "large:");
emitter_table_row(emitter, &header_row);
emitter_json_array_kv_begin(emitter, "lextents");
for (j = 0, in_gap = false; j < nlextents; j++) {
uint64_t nmalloc, ndalloc, nrequests;
size_t lextent_size, curlextents;
CTL_M2_M4_GET("stats.arenas.0.lextents.0.nmalloc", i, j,
&nmalloc, uint64_t);
CTL_M2_M4_GET("stats.arenas.0.lextents.0.ndalloc", i, j,
&ndalloc, uint64_t);
CTL_M2_M4_GET("stats.arenas.0.lextents.0.nrequests", i, j,
&nrequests, uint64_t);
in_gap_prev = in_gap;
in_gap = (nrequests == 0);
if (in_gap_prev && !in_gap) {
emitter_table_printf(emitter,
" ---\n");
}
CTL_M2_GET("arenas.lextent.0.size", j, &lextent_size, size_t);
CTL_M2_M4_GET("stats.arenas.0.lextents.0.curlextents", i, j,
&curlextents, size_t);
emitter_json_object_begin(emitter);
emitter_json_kv(emitter, "curlextents", emitter_type_size,
&curlextents);
emitter_json_object_end(emitter);
col_size.size_val = lextent_size;
col_ind.unsigned_val = nbins + j;
col_allocated.size_val = curlextents * lextent_size;
col_nmalloc.uint64_val = nmalloc;
col_nmalloc_ps.uint64_val = rate_per_second(nmalloc, uptime);
col_ndalloc.uint64_val = ndalloc;
col_ndalloc_ps.uint64_val = rate_per_second(ndalloc, uptime);
col_nrequests.uint64_val = nrequests;
col_nrequests_ps.uint64_val = rate_per_second(nrequests, uptime);
col_curlextents.size_val = curlextents;
if (!in_gap) {
emitter_table_row(emitter, &row);
}
}
emitter_json_array_end(emitter); /* Close "lextents". */
if (in_gap) {
emitter_table_printf(emitter, " ---\n");
}
}
static void
stats_arena_extents_print(emitter_t *emitter, unsigned i) {
unsigned j;
bool in_gap, in_gap_prev;
emitter_row_t header_row;
emitter_row_init(&header_row);
emitter_row_t row;
emitter_row_init(&row);
COL_HDR(row, size, NULL, right, 20, size)
COL_HDR(row, ind, NULL, right, 4, unsigned)
COL_HDR(row, ndirty, NULL, right, 13, size)
COL_HDR(row, dirty, NULL, right, 13, size)
COL_HDR(row, nmuzzy, NULL, right, 13, size)
COL_HDR(row, muzzy, NULL, right, 13, size)
COL_HDR(row, nretained, NULL, right, 13, size)
COL_HDR(row, retained, NULL, right, 13, size)
COL_HDR(row, ntotal, NULL, right, 13, size)
COL_HDR(row, total, NULL, right, 13, size)
/* Label this section. */
header_size.width -= 8;
emitter_table_printf(emitter, "extents:");
emitter_table_row(emitter, &header_row);
emitter_json_array_kv_begin(emitter, "extents");
in_gap = false;
for (j = 0; j < SC_NPSIZES; j++) {
size_t ndirty, nmuzzy, nretained, total, dirty_bytes,
muzzy_bytes, retained_bytes, total_bytes;
CTL_M2_M4_GET("stats.arenas.0.extents.0.ndirty", i, j,
&ndirty, size_t);
CTL_M2_M4_GET("stats.arenas.0.extents.0.nmuzzy", i, j,
&nmuzzy, size_t);
CTL_M2_M4_GET("stats.arenas.0.extents.0.nretained", i, j,
&nretained, size_t);
CTL_M2_M4_GET("stats.arenas.0.extents.0.dirty_bytes", i, j,
&dirty_bytes, size_t);
CTL_M2_M4_GET("stats.arenas.0.extents.0.muzzy_bytes", i, j,
&muzzy_bytes, size_t);
CTL_M2_M4_GET("stats.arenas.0.extents.0.retained_bytes", i, j,
&retained_bytes, size_t);
total = ndirty + nmuzzy + nretained;
total_bytes = dirty_bytes + muzzy_bytes + retained_bytes;
in_gap_prev = in_gap;
in_gap = (total == 0);
if (in_gap_prev && !in_gap) {
emitter_table_printf(emitter,
" ---\n");
}
emitter_json_object_begin(emitter);
emitter_json_kv(emitter, "ndirty", emitter_type_size, &ndirty);
emitter_json_kv(emitter, "nmuzzy", emitter_type_size, &nmuzzy);
emitter_json_kv(emitter, "nretained", emitter_type_size,
&nretained);
emitter_json_kv(emitter, "dirty_bytes", emitter_type_size,
&dirty_bytes);
emitter_json_kv(emitter, "muzzy_bytes", emitter_type_size,
&muzzy_bytes);
emitter_json_kv(emitter, "retained_bytes", emitter_type_size,
&retained_bytes);
emitter_json_object_end(emitter);
col_size.size_val = sz_pind2sz(j);
col_ind.size_val = j;
col_ndirty.size_val = ndirty;
col_dirty.size_val = dirty_bytes;
col_nmuzzy.size_val = nmuzzy;
col_muzzy.size_val = muzzy_bytes;
col_nretained.size_val = nretained;
col_retained.size_val = retained_bytes;
col_ntotal.size_val = total;
col_total.size_val = total_bytes;
if (!in_gap) {
emitter_table_row(emitter, &row);
}
}
emitter_json_array_end(emitter); /* Close "extents". */
if (in_gap) {
emitter_table_printf(emitter, " ---\n");
}
}
static void
stats_arena_mutexes_print(emitter_t *emitter, unsigned arena_ind, uint64_t uptime) {
emitter_row_t row;
emitter_col_t col_name;
emitter_col_t col64[mutex_prof_num_uint64_t_counters];
emitter_col_t col32[mutex_prof_num_uint32_t_counters];
emitter_row_init(&row);
mutex_stats_init_cols(&row, "", &col_name, col64, col32);
emitter_json_object_kv_begin(emitter, "mutexes");
emitter_table_row(emitter, &row);
for (mutex_prof_arena_ind_t i = 0; i < mutex_prof_num_arena_mutexes;
i++) {
const char *name = arena_mutex_names[i];
emitter_json_object_kv_begin(emitter, name);
mutex_stats_read_arena(arena_ind, i, name, &col_name, col64,
col32, uptime);
mutex_stats_emit(emitter, &row, col64, col32);
emitter_json_object_end(emitter); /* Close the mutex dict. */
}
emitter_json_object_end(emitter); /* End "mutexes". */
}
static void
stats_arena_print(emitter_t *emitter, unsigned i, bool bins, bool large,
bool mutex, bool extents) {
unsigned nthreads;
const char *dss;
ssize_t dirty_decay_ms, muzzy_decay_ms;
size_t page, pactive, pdirty, pmuzzy, mapped, retained;
size_t base, internal, resident, metadata_thp, extent_avail;
uint64_t dirty_npurge, dirty_nmadvise, dirty_purged;
uint64_t muzzy_npurge, muzzy_nmadvise, muzzy_purged;
size_t small_allocated;
uint64_t small_nmalloc, small_ndalloc, small_nrequests, small_nfills,
small_nflushes;
size_t large_allocated;
uint64_t large_nmalloc, large_ndalloc, large_nrequests, large_nfills,
large_nflushes;
size_t tcache_bytes, abandoned_vm;
uint64_t uptime;
CTL_GET("arenas.page", &page, size_t);
CTL_M2_GET("stats.arenas.0.nthreads", i, &nthreads, unsigned);
emitter_kv(emitter, "nthreads", "assigned threads",
emitter_type_unsigned, &nthreads);
CTL_M2_GET("stats.arenas.0.uptime", i, &uptime, uint64_t);
emitter_kv(emitter, "uptime_ns", "uptime", emitter_type_uint64,
&uptime);
CTL_M2_GET("stats.arenas.0.dss", i, &dss, const char *);
emitter_kv(emitter, "dss", "dss allocation precedence",
emitter_type_string, &dss);
CTL_M2_GET("stats.arenas.0.dirty_decay_ms", i, &dirty_decay_ms,
ssize_t);
CTL_M2_GET("stats.arenas.0.muzzy_decay_ms", i, &muzzy_decay_ms,
ssize_t);
CTL_M2_GET("stats.arenas.0.pactive", i, &pactive, size_t);
CTL_M2_GET("stats.arenas.0.pdirty", i, &pdirty, size_t);
CTL_M2_GET("stats.arenas.0.pmuzzy", i, &pmuzzy, size_t);
CTL_M2_GET("stats.arenas.0.dirty_npurge", i, &dirty_npurge, uint64_t);
CTL_M2_GET("stats.arenas.0.dirty_nmadvise", i, &dirty_nmadvise,
uint64_t);
CTL_M2_GET("stats.arenas.0.dirty_purged", i, &dirty_purged, uint64_t);
CTL_M2_GET("stats.arenas.0.muzzy_npurge", i, &muzzy_npurge, uint64_t);
CTL_M2_GET("stats.arenas.0.muzzy_nmadvise", i, &muzzy_nmadvise,
uint64_t);
CTL_M2_GET("stats.arenas.0.muzzy_purged", i, &muzzy_purged, uint64_t);
emitter_row_t decay_row;
emitter_row_init(&decay_row);
/* JSON-style emission. */
emitter_json_kv(emitter, "dirty_decay_ms", emitter_type_ssize,
&dirty_decay_ms);
emitter_json_kv(emitter, "muzzy_decay_ms", emitter_type_ssize,
&muzzy_decay_ms);
emitter_json_kv(emitter, "pactive", emitter_type_size, &pactive);
emitter_json_kv(emitter, "pdirty", emitter_type_size, &pdirty);
emitter_json_kv(emitter, "pmuzzy", emitter_type_size, &pmuzzy);
emitter_json_kv(emitter, "dirty_npurge", emitter_type_uint64,
&dirty_npurge);
emitter_json_kv(emitter, "dirty_nmadvise", emitter_type_uint64,
&dirty_nmadvise);
emitter_json_kv(emitter, "dirty_purged", emitter_type_uint64,
&dirty_purged);
emitter_json_kv(emitter, "muzzy_npurge", emitter_type_uint64,
&muzzy_npurge);
emitter_json_kv(emitter, "muzzy_nmadvise", emitter_type_uint64,
&muzzy_nmadvise);
emitter_json_kv(emitter, "muzzy_purged", emitter_type_uint64,
&muzzy_purged);
/* Table-style emission. */
COL(decay_row, decay_type, right, 9, title);
col_decay_type.str_val = "decaying:";
COL(decay_row, decay_time, right, 6, title);
col_decay_time.str_val = "time";
COL(decay_row, decay_npages, right, 13, title);
col_decay_npages.str_val = "npages";
COL(decay_row, decay_sweeps, right, 13, title);
col_decay_sweeps.str_val = "sweeps";
COL(decay_row, decay_madvises, right, 13, title);
col_decay_madvises.str_val = "madvises";
COL(decay_row, decay_purged, right, 13, title);
col_decay_purged.str_val = "purged";
/* Title row. */
emitter_table_row(emitter, &decay_row);
/* Dirty row. */
col_decay_type.str_val = "dirty:";
if (dirty_decay_ms >= 0) {
col_decay_time.type = emitter_type_ssize;
col_decay_time.ssize_val = dirty_decay_ms;
} else {
col_decay_time.type = emitter_type_title;
col_decay_time.str_val = "N/A";
}
col_decay_npages.type = emitter_type_size;
col_decay_npages.size_val = pdirty;
col_decay_sweeps.type = emitter_type_uint64;
col_decay_sweeps.uint64_val = dirty_npurge;
col_decay_madvises.type = emitter_type_uint64;
col_decay_madvises.uint64_val = dirty_nmadvise;
col_decay_purged.type = emitter_type_uint64;
col_decay_purged.uint64_val = dirty_purged;
emitter_table_row(emitter, &decay_row);
/* Muzzy row. */
col_decay_type.str_val = "muzzy:";
if (muzzy_decay_ms >= 0) {
col_decay_time.type = emitter_type_ssize;
col_decay_time.ssize_val = muzzy_decay_ms;
} else {
col_decay_time.type = emitter_type_title;
col_decay_time.str_val = "N/A";
}
col_decay_npages.type = emitter_type_size;
col_decay_npages.size_val = pmuzzy;
col_decay_sweeps.type = emitter_type_uint64;
col_decay_sweeps.uint64_val = muzzy_npurge;
col_decay_madvises.type = emitter_type_uint64;
col_decay_madvises.uint64_val = muzzy_nmadvise;
col_decay_purged.type = emitter_type_uint64;
col_decay_purged.uint64_val = muzzy_purged;
emitter_table_row(emitter, &decay_row);
/* Small / large / total allocation counts. */
emitter_row_t alloc_count_row;
emitter_row_init(&alloc_count_row);
COL(alloc_count_row, count_title, left, 21, title);
col_count_title.str_val = "";
COL(alloc_count_row, count_allocated, right, 16, title);
col_count_allocated.str_val = "allocated";
COL(alloc_count_row, count_nmalloc, right, 16, title);
col_count_nmalloc.str_val = "nmalloc";
COL(alloc_count_row, count_nmalloc_ps, right, 8, title);
col_count_nmalloc_ps.str_val = "(#/sec)";
COL(alloc_count_row, count_ndalloc, right, 16, title);
col_count_ndalloc.str_val = "ndalloc";
COL(alloc_count_row, count_ndalloc_ps, right, 8, title);
col_count_ndalloc_ps.str_val = "(#/sec)";
COL(alloc_count_row, count_nrequests, right, 16, title);
col_count_nrequests.str_val = "nrequests";
COL(alloc_count_row, count_nrequests_ps, right, 10, title);
col_count_nrequests_ps.str_val = "(#/sec)";
COL(alloc_count_row, count_nfills, right, 16, title);
col_count_nfills.str_val = "nfill";
COL(alloc_count_row, count_nfills_ps, right, 10, title);
col_count_nfills_ps.str_val = "(#/sec)";
COL(alloc_count_row, count_nflushes, right, 16, title);
col_count_nflushes.str_val = "nflush";
COL(alloc_count_row, count_nflushes_ps, right, 10, title);
col_count_nflushes_ps.str_val = "(#/sec)";
emitter_table_row(emitter, &alloc_count_row);
col_count_nmalloc_ps.type = emitter_type_uint64;
col_count_ndalloc_ps.type = emitter_type_uint64;
col_count_nrequests_ps.type = emitter_type_uint64;
col_count_nfills_ps.type = emitter_type_uint64;
col_count_nflushes_ps.type = emitter_type_uint64;
#define GET_AND_EMIT_ALLOC_STAT(small_or_large, name, valtype) \
CTL_M2_GET("stats.arenas.0." #small_or_large "." #name, i, \
&small_or_large##_##name, valtype##_t); \
emitter_json_kv(emitter, #name, emitter_type_##valtype, \
&small_or_large##_##name); \
col_count_##name.type = emitter_type_##valtype; \
col_count_##name.valtype##_val = small_or_large##_##name;
emitter_json_object_kv_begin(emitter, "small");
col_count_title.str_val = "small:";
GET_AND_EMIT_ALLOC_STAT(small, allocated, size)
GET_AND_EMIT_ALLOC_STAT(small, nmalloc, uint64)
col_count_nmalloc_ps.uint64_val =
rate_per_second(col_count_nmalloc.uint64_val, uptime);
GET_AND_EMIT_ALLOC_STAT(small, ndalloc, uint64)
col_count_ndalloc_ps.uint64_val =
rate_per_second(col_count_ndalloc.uint64_val, uptime);
GET_AND_EMIT_ALLOC_STAT(small, nrequests, uint64)
col_count_nrequests_ps.uint64_val =
rate_per_second(col_count_nrequests.uint64_val, uptime);
GET_AND_EMIT_ALLOC_STAT(small, nfills, uint64)
col_count_nfills_ps.uint64_val =
rate_per_second(col_count_nfills.uint64_val, uptime);
GET_AND_EMIT_ALLOC_STAT(small, nflushes, uint64)
col_count_nflushes_ps.uint64_val =
rate_per_second(col_count_nflushes.uint64_val, uptime);
emitter_table_row(emitter, &alloc_count_row);
emitter_json_object_end(emitter); /* Close "small". */
emitter_json_object_kv_begin(emitter, "large");
col_count_title.str_val = "large:";
GET_AND_EMIT_ALLOC_STAT(large, allocated, size)
GET_AND_EMIT_ALLOC_STAT(large, nmalloc, uint64)
col_count_nmalloc_ps.uint64_val =
rate_per_second(col_count_nmalloc.uint64_val, uptime);
GET_AND_EMIT_ALLOC_STAT(large, ndalloc, uint64)
col_count_ndalloc_ps.uint64_val =
rate_per_second(col_count_ndalloc.uint64_val, uptime);
GET_AND_EMIT_ALLOC_STAT(large, nrequests, uint64)
col_count_nrequests_ps.uint64_val =
rate_per_second(col_count_nrequests.uint64_val, uptime);
GET_AND_EMIT_ALLOC_STAT(large, nfills, uint64)
col_count_nfills_ps.uint64_val =
rate_per_second(col_count_nfills.uint64_val, uptime);
GET_AND_EMIT_ALLOC_STAT(large, nflushes, uint64)
col_count_nflushes_ps.uint64_val =
rate_per_second(col_count_nflushes.uint64_val, uptime);
emitter_table_row(emitter, &alloc_count_row);
emitter_json_object_end(emitter); /* Close "large". */
#undef GET_AND_EMIT_ALLOC_STAT
/* Aggregated small + large stats are emitter only in table mode. */
col_count_title.str_val = "total:";
col_count_allocated.size_val = small_allocated + large_allocated;
col_count_nmalloc.uint64_val = small_nmalloc + large_nmalloc;
col_count_ndalloc.uint64_val = small_ndalloc + large_ndalloc;
col_count_nrequests.uint64_val = small_nrequests + large_nrequests;
col_count_nfills.uint64_val = small_nfills + large_nfills;
col_count_nflushes.uint64_val = small_nflushes + large_nflushes;
col_count_nmalloc_ps.uint64_val =
rate_per_second(col_count_nmalloc.uint64_val, uptime);
col_count_ndalloc_ps.uint64_val =
rate_per_second(col_count_ndalloc.uint64_val, uptime);
col_count_nrequests_ps.uint64_val =
rate_per_second(col_count_nrequests.uint64_val, uptime);
col_count_nfills_ps.uint64_val =
rate_per_second(col_count_nfills.uint64_val, uptime);
col_count_nflushes_ps.uint64_val =
rate_per_second(col_count_nflushes.uint64_val, uptime);
emitter_table_row(emitter, &alloc_count_row);
emitter_row_t mem_count_row;
emitter_row_init(&mem_count_row);
emitter_col_t mem_count_title;
emitter_col_init(&mem_count_title, &mem_count_row);
mem_count_title.justify = emitter_justify_left;
mem_count_title.width = 21;
mem_count_title.type = emitter_type_title;
mem_count_title.str_val = "";
emitter_col_t mem_count_val;
emitter_col_init(&mem_count_val, &mem_count_row);
mem_count_val.justify = emitter_justify_right;
mem_count_val.width = 16;
mem_count_val.type = emitter_type_title;
mem_count_val.str_val = "";
emitter_table_row(emitter, &mem_count_row);
mem_count_val.type = emitter_type_size;
/* Active count in bytes is emitted only in table mode. */
mem_count_title.str_val = "active:";
mem_count_val.size_val = pactive * page;
emitter_table_row(emitter, &mem_count_row);
#define GET_AND_EMIT_MEM_STAT(stat) \
CTL_M2_GET("stats.arenas.0."#stat, i, &stat, size_t); \
emitter_json_kv(emitter, #stat, emitter_type_size, &stat); \
mem_count_title.str_val = #stat":"; \
mem_count_val.size_val = stat; \
emitter_table_row(emitter, &mem_count_row);
GET_AND_EMIT_MEM_STAT(mapped)
GET_AND_EMIT_MEM_STAT(retained)
GET_AND_EMIT_MEM_STAT(base)
GET_AND_EMIT_MEM_STAT(internal)
GET_AND_EMIT_MEM_STAT(metadata_thp)
GET_AND_EMIT_MEM_STAT(tcache_bytes)
GET_AND_EMIT_MEM_STAT(resident)
GET_AND_EMIT_MEM_STAT(abandoned_vm)
GET_AND_EMIT_MEM_STAT(extent_avail)
#undef GET_AND_EMIT_MEM_STAT
if (mutex) {
stats_arena_mutexes_print(emitter, i, uptime);
}
if (bins) {
stats_arena_bins_print(emitter, mutex, i, uptime);
}
if (large) {
stats_arena_lextents_print(emitter, i, uptime);
}
if (extents) {
stats_arena_extents_print(emitter, i);
}
}
static void
stats_general_print(emitter_t *emitter) {
const char *cpv;
bool bv, bv2;
unsigned uv;
uint32_t u32v;
uint64_t u64v;
ssize_t ssv, ssv2;
size_t sv, bsz, usz, ssz, sssz, cpsz;
bsz = sizeof(bool);
usz = sizeof(unsigned);
ssz = sizeof(size_t);
sssz = sizeof(ssize_t);
cpsz = sizeof(const char *);
CTL_GET("version", &cpv, const char *);
emitter_kv(emitter, "version", "Version", emitter_type_string, &cpv);
/* config. */
emitter_dict_begin(emitter, "config", "Build-time option settings");
#define CONFIG_WRITE_BOOL(name) \
do { \
CTL_GET("config."#name, &bv, bool); \
emitter_kv(emitter, #name, "config."#name, \
emitter_type_bool, &bv); \
} while (0)
CONFIG_WRITE_BOOL(cache_oblivious);
CONFIG_WRITE_BOOL(debug);
CONFIG_WRITE_BOOL(fill);
CONFIG_WRITE_BOOL(lazy_lock);
emitter_kv(emitter, "malloc_conf", "config.malloc_conf",
emitter_type_string, &config_malloc_conf);
CONFIG_WRITE_BOOL(opt_safety_checks);
CONFIG_WRITE_BOOL(prof);
CONFIG_WRITE_BOOL(prof_libgcc);
CONFIG_WRITE_BOOL(prof_libunwind);
CONFIG_WRITE_BOOL(stats);
CONFIG_WRITE_BOOL(utrace);
CONFIG_WRITE_BOOL(xmalloc);
#undef CONFIG_WRITE_BOOL
emitter_dict_end(emitter); /* Close "config" dict. */
/* opt. */
#define OPT_WRITE(name, var, size, emitter_type) \
if (je_mallctl("opt."name, (void *)&var, &size, NULL, 0) == \
0) { \
emitter_kv(emitter, name, "opt."name, emitter_type, \
&var); \
}
#define OPT_WRITE_MUTABLE(name, var1, var2, size, emitter_type, \
altname) \
if (je_mallctl("opt."name, (void *)&var1, &size, NULL, 0) == \
0 && je_mallctl(altname, (void *)&var2, &size, NULL, 0) \
== 0) { \
emitter_kv_note(emitter, name, "opt."name, \
emitter_type, &var1, altname, emitter_type, \
&var2); \
}
#define OPT_WRITE_BOOL(name) OPT_WRITE(name, bv, bsz, emitter_type_bool)
#define OPT_WRITE_BOOL_MUTABLE(name, altname) \
OPT_WRITE_MUTABLE(name, bv, bv2, bsz, emitter_type_bool, altname)
#define OPT_WRITE_UNSIGNED(name) \
OPT_WRITE(name, uv, usz, emitter_type_unsigned)
#define OPT_WRITE_SIZE_T(name) \
OPT_WRITE(name, sv, ssz, emitter_type_size)
#define OPT_WRITE_SSIZE_T(name) \
OPT_WRITE(name, ssv, sssz, emitter_type_ssize)
#define OPT_WRITE_SSIZE_T_MUTABLE(name, altname) \
OPT_WRITE_MUTABLE(name, ssv, ssv2, sssz, emitter_type_ssize, \
altname)
#define OPT_WRITE_CHAR_P(name) \
OPT_WRITE(name, cpv, cpsz, emitter_type_string)
emitter_dict_begin(emitter, "opt", "Run-time option settings");
OPT_WRITE_BOOL("abort")
OPT_WRITE_BOOL("abort_conf")
OPT_WRITE_BOOL("confirm_conf")
OPT_WRITE_BOOL("retain")
OPT_WRITE_CHAR_P("dss")
OPT_WRITE_UNSIGNED("narenas")
OPT_WRITE_CHAR_P("percpu_arena")
OPT_WRITE_SIZE_T("oversize_threshold")
OPT_WRITE_CHAR_P("metadata_thp")
OPT_WRITE_BOOL_MUTABLE("background_thread", "background_thread")
OPT_WRITE_SSIZE_T_MUTABLE("dirty_decay_ms", "arenas.dirty_decay_ms")
OPT_WRITE_SSIZE_T_MUTABLE("muzzy_decay_ms", "arenas.muzzy_decay_ms")
OPT_WRITE_SIZE_T("lg_extent_max_active_fit")
OPT_WRITE_CHAR_P("junk")
OPT_WRITE_BOOL("zero")
OPT_WRITE_BOOL("utrace")
OPT_WRITE_BOOL("xmalloc")
OPT_WRITE_BOOL("tcache")
OPT_WRITE_SSIZE_T("lg_tcache_max")
OPT_WRITE_CHAR_P("thp")
OPT_WRITE_BOOL("prof")
OPT_WRITE_CHAR_P("prof_prefix")
OPT_WRITE_BOOL_MUTABLE("prof_active", "prof.active")
OPT_WRITE_BOOL_MUTABLE("prof_thread_active_init",
"prof.thread_active_init")
OPT_WRITE_SSIZE_T_MUTABLE("lg_prof_sample", "prof.lg_sample")
OPT_WRITE_BOOL("prof_accum")
OPT_WRITE_SSIZE_T("lg_prof_interval")
OPT_WRITE_BOOL("prof_gdump")
OPT_WRITE_BOOL("prof_final")
OPT_WRITE_BOOL("prof_leak")
OPT_WRITE_BOOL("stats_print")
OPT_WRITE_CHAR_P("stats_print_opts")
emitter_dict_end(emitter);
#undef OPT_WRITE
#undef OPT_WRITE_MUTABLE
#undef OPT_WRITE_BOOL
#undef OPT_WRITE_BOOL_MUTABLE
#undef OPT_WRITE_UNSIGNED
#undef OPT_WRITE_SSIZE_T
#undef OPT_WRITE_SSIZE_T_MUTABLE
#undef OPT_WRITE_CHAR_P
/* prof. */
if (config_prof) {
emitter_dict_begin(emitter, "prof", "Profiling settings");
CTL_GET("prof.thread_active_init", &bv, bool);
emitter_kv(emitter, "thread_active_init",
"prof.thread_active_init", emitter_type_bool, &bv);
CTL_GET("prof.active", &bv, bool);
emitter_kv(emitter, "active", "prof.active", emitter_type_bool,
&bv);
CTL_GET("prof.gdump", &bv, bool);
emitter_kv(emitter, "gdump", "prof.gdump", emitter_type_bool,
&bv);
CTL_GET("prof.interval", &u64v, uint64_t);
emitter_kv(emitter, "interval", "prof.interval",
emitter_type_uint64, &u64v);
CTL_GET("prof.lg_sample", &ssv, ssize_t);
emitter_kv(emitter, "lg_sample", "prof.lg_sample",
emitter_type_ssize, &ssv);
emitter_dict_end(emitter); /* Close "prof". */
}
/* arenas. */
/*
* The json output sticks arena info into an "arenas" dict; the table
* output puts them at the top-level.
*/
emitter_json_object_kv_begin(emitter, "arenas");
CTL_GET("arenas.narenas", &uv, unsigned);
emitter_kv(emitter, "narenas", "Arenas", emitter_type_unsigned, &uv);
/*
* Decay settings are emitted only in json mode; in table mode, they're
* emitted as notes with the opt output, above.
*/
CTL_GET("arenas.dirty_decay_ms", &ssv, ssize_t);
emitter_json_kv(emitter, "dirty_decay_ms", emitter_type_ssize, &ssv);
CTL_GET("arenas.muzzy_decay_ms", &ssv, ssize_t);
emitter_json_kv(emitter, "muzzy_decay_ms", emitter_type_ssize, &ssv);
CTL_GET("arenas.quantum", &sv, size_t);
emitter_kv(emitter, "quantum", "Quantum size", emitter_type_size, &sv);
CTL_GET("arenas.page", &sv, size_t);
emitter_kv(emitter, "page", "Page size", emitter_type_size, &sv);
if (je_mallctl("arenas.tcache_max", (void *)&sv, &ssz, NULL, 0) == 0) {
emitter_kv(emitter, "tcache_max",
"Maximum thread-cached size class", emitter_type_size, &sv);
}
unsigned nbins;
CTL_GET("arenas.nbins", &nbins, unsigned);
emitter_kv(emitter, "nbins", "Number of bin size classes",
emitter_type_unsigned, &nbins);
unsigned nhbins;
CTL_GET("arenas.nhbins", &nhbins, unsigned);
emitter_kv(emitter, "nhbins", "Number of thread-cache bin size classes",
emitter_type_unsigned, &nhbins);
/*
* We do enough mallctls in a loop that we actually want to omit them
* (not just omit the printing).
*/
if (emitter->output == emitter_output_json) {
emitter_json_array_kv_begin(emitter, "bin");
for (unsigned i = 0; i < nbins; i++) {
emitter_json_object_begin(emitter);
CTL_M2_GET("arenas.bin.0.size", i, &sv, size_t);
emitter_json_kv(emitter, "size", emitter_type_size,
&sv);
CTL_M2_GET("arenas.bin.0.nregs", i, &u32v, uint32_t);
emitter_json_kv(emitter, "nregs", emitter_type_uint32,
&u32v);
CTL_M2_GET("arenas.bin.0.slab_size", i, &sv, size_t);
emitter_json_kv(emitter, "slab_size", emitter_type_size,
&sv);
CTL_M2_GET("arenas.bin.0.nshards", i, &u32v, uint32_t);
emitter_json_kv(emitter, "nshards", emitter_type_uint32,
&u32v);
emitter_json_object_end(emitter);
}
emitter_json_array_end(emitter); /* Close "bin". */
}
unsigned nlextents;
CTL_GET("arenas.nlextents", &nlextents, unsigned);
emitter_kv(emitter, "nlextents", "Number of large size classes",
emitter_type_unsigned, &nlextents);
if (emitter->output == emitter_output_json) {
emitter_json_array_kv_begin(emitter, "lextent");
for (unsigned i = 0; i < nlextents; i++) {
emitter_json_object_begin(emitter);
CTL_M2_GET("arenas.lextent.0.size", i, &sv, size_t);
emitter_json_kv(emitter, "size", emitter_type_size,
&sv);
emitter_json_object_end(emitter);
}
emitter_json_array_end(emitter); /* Close "lextent". */
}
emitter_json_object_end(emitter); /* Close "arenas" */
}
static void
stats_print_helper(emitter_t *emitter, bool merged, bool destroyed,
bool unmerged, bool bins, bool large, bool mutex, bool extents) {
/*
* These should be deleted. We keep them around for a while, to aid in
* the transition to the emitter code.
*/
size_t allocated, active, metadata, metadata_thp, resident, mapped,
retained;
size_t num_background_threads;
uint64_t background_thread_num_runs, background_thread_run_interval;
CTL_GET("stats.allocated", &allocated, size_t);
CTL_GET("stats.active", &active, size_t);
CTL_GET("stats.metadata", &metadata, size_t);
CTL_GET("stats.metadata_thp", &metadata_thp, size_t);
CTL_GET("stats.resident", &resident, size_t);
CTL_GET("stats.mapped", &mapped, size_t);
CTL_GET("stats.retained", &retained, size_t);
if (have_background_thread) {
CTL_GET("stats.background_thread.num_threads",
&num_background_threads, size_t);
CTL_GET("stats.background_thread.num_runs",
&background_thread_num_runs, uint64_t);
CTL_GET("stats.background_thread.run_interval",
&background_thread_run_interval, uint64_t);
} else {
num_background_threads = 0;
background_thread_num_runs = 0;
background_thread_run_interval = 0;
}
/* Generic global stats. */
emitter_json_object_kv_begin(emitter, "stats");
emitter_json_kv(emitter, "allocated", emitter_type_size, &allocated);
emitter_json_kv(emitter, "active", emitter_type_size, &active);
emitter_json_kv(emitter, "metadata", emitter_type_size, &metadata);
emitter_json_kv(emitter, "metadata_thp", emitter_type_size,
&metadata_thp);
emitter_json_kv(emitter, "resident", emitter_type_size, &resident);
emitter_json_kv(emitter, "mapped", emitter_type_size, &mapped);
emitter_json_kv(emitter, "retained", emitter_type_size, &retained);
emitter_table_printf(emitter, "Allocated: %zu, active: %zu, "
"metadata: %zu (n_thp %zu), resident: %zu, mapped: %zu, "
"retained: %zu\n", allocated, active, metadata, metadata_thp,
resident, mapped, retained);
/* Background thread stats. */
emitter_json_object_kv_begin(emitter, "background_thread");
emitter_json_kv(emitter, "num_threads", emitter_type_size,
&num_background_threads);
emitter_json_kv(emitter, "num_runs", emitter_type_uint64,
&background_thread_num_runs);
emitter_json_kv(emitter, "run_interval", emitter_type_uint64,
&background_thread_run_interval);
emitter_json_object_end(emitter); /* Close "background_thread". */
emitter_table_printf(emitter, "Background threads: %zu, "
"num_runs: %"FMTu64", run_interval: %"FMTu64" ns\n",
num_background_threads, background_thread_num_runs,
background_thread_run_interval);
if (mutex) {
emitter_row_t row;
emitter_col_t name;
emitter_col_t col64[mutex_prof_num_uint64_t_counters];
emitter_col_t col32[mutex_prof_num_uint32_t_counters];
uint64_t uptime;
emitter_row_init(&row);
mutex_stats_init_cols(&row, "", &name, col64, col32);
emitter_table_row(emitter, &row);
emitter_json_object_kv_begin(emitter, "mutexes");
CTL_M2_GET("stats.arenas.0.uptime", 0, &uptime, uint64_t);
for (int i = 0; i < mutex_prof_num_global_mutexes; i++) {
mutex_stats_read_global(global_mutex_names[i], &name,
col64, col32, uptime);
emitter_json_object_kv_begin(emitter, global_mutex_names[i]);
mutex_stats_emit(emitter, &row, col64, col32);
emitter_json_object_end(emitter);
}
emitter_json_object_end(emitter); /* Close "mutexes". */
}
emitter_json_object_end(emitter); /* Close "stats". */
if (merged || destroyed || unmerged) {
unsigned narenas;
emitter_json_object_kv_begin(emitter, "stats.arenas");
CTL_GET("arenas.narenas", &narenas, unsigned);
size_t mib[3];
size_t miblen = sizeof(mib) / sizeof(size_t);
size_t sz;
VARIABLE_ARRAY(bool, initialized, narenas);
bool destroyed_initialized;
unsigned i, j, ninitialized;
xmallctlnametomib("arena.0.initialized", mib, &miblen);
for (i = ninitialized = 0; i < narenas; i++) {
mib[1] = i;
sz = sizeof(bool);
xmallctlbymib(mib, miblen, &initialized[i], &sz,
NULL, 0);
if (initialized[i]) {
ninitialized++;
}
}
mib[1] = MALLCTL_ARENAS_DESTROYED;
sz = sizeof(bool);
xmallctlbymib(mib, miblen, &destroyed_initialized, &sz,
NULL, 0);
/* Merged stats. */
if (merged && (ninitialized > 1 || !unmerged)) {
/* Print merged arena stats. */
emitter_table_printf(emitter, "Merged arenas stats:\n");
emitter_json_object_kv_begin(emitter, "merged");
stats_arena_print(emitter, MALLCTL_ARENAS_ALL, bins,
large, mutex, extents);
emitter_json_object_end(emitter); /* Close "merged". */
}
/* Destroyed stats. */
if (destroyed_initialized && destroyed) {
/* Print destroyed arena stats. */
emitter_table_printf(emitter,
"Destroyed arenas stats:\n");
emitter_json_object_kv_begin(emitter, "destroyed");
stats_arena_print(emitter, MALLCTL_ARENAS_DESTROYED,
bins, large, mutex, extents);
emitter_json_object_end(emitter); /* Close "destroyed". */
}
/* Unmerged stats. */
if (unmerged) {
for (i = j = 0; i < narenas; i++) {
if (initialized[i]) {
char arena_ind_str[20];
malloc_snprintf(arena_ind_str,
sizeof(arena_ind_str), "%u", i);
emitter_json_object_kv_begin(emitter,
arena_ind_str);
emitter_table_printf(emitter,
"arenas[%s]:\n", arena_ind_str);
stats_arena_print(emitter, i, bins,
large, mutex, extents);
/* Close "<arena-ind>". */
emitter_json_object_end(emitter);
}
}
}
emitter_json_object_end(emitter); /* Close "stats.arenas". */
}
}
void
stats_print(void (*write_cb)(void *, const char *), void *cbopaque,
const char *opts) {
int err;
uint64_t epoch;
size_t u64sz;
#define OPTION(o, v, d, s) bool v = d;
STATS_PRINT_OPTIONS
#undef OPTION
/*
* Refresh stats, in case mallctl() was called by the application.
*
* Check for OOM here, since refreshing the ctl cache can trigger
* allocation. In practice, none of the subsequent mallctl()-related
* calls in this function will cause OOM if this one succeeds.
* */
epoch = 1;
u64sz = sizeof(uint64_t);
err = je_mallctl("epoch", (void *)&epoch, &u64sz, (void *)&epoch,
sizeof(uint64_t));
if (err != 0) {
if (err == EAGAIN) {
malloc_write("<jemalloc>: Memory allocation failure in "
"mallctl(\"epoch\", ...)\n");
return;
}
malloc_write("<jemalloc>: Failure in mallctl(\"epoch\", "
"...)\n");
abort();
}
if (opts != NULL) {
for (unsigned i = 0; opts[i] != '\0'; i++) {
switch (opts[i]) {
#define OPTION(o, v, d, s) case o: v = s; break;
STATS_PRINT_OPTIONS
#undef OPTION
default:;
}
}
}
emitter_t emitter;
emitter_init(&emitter,
json ? emitter_output_json : emitter_output_table, write_cb,
cbopaque);
emitter_begin(&emitter);
emitter_table_printf(&emitter, "___ Begin jemalloc statistics ___\n");
emitter_json_object_kv_begin(&emitter, "jemalloc");
if (general) {
stats_general_print(&emitter);
}
if (config_stats) {
stats_print_helper(&emitter, merged, destroyed, unmerged,
bins, large, mutex, extents);
}
emitter_json_object_end(&emitter); /* Closes the "jemalloc" dict. */
emitter_table_printf(&emitter, "--- End jemalloc statistics ---\n");
emitter_end(&emitter);
}