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print out all malloc_conf settings in stats

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This commit is contained in:
Shirui Cheng
2024-01-30 10:16:28 -08:00
committed by Qi Wang
parent 1aba4f41a3
commit 373884ab48
5 changed files with 114 additions and 18 deletions
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36
src/stats.c
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@@ -1473,6 +1473,40 @@ stats_general_print(emitter_t *emitter) {
emitter_dict_begin(emitter, "opt", "Run-time option settings");
/*
* opt.malloc_conf.
*
* Sources are documented in https://jemalloc.net/jemalloc.3.html#tuning
* - (Not Included Here) The string specified via --with-malloc-conf,
* which is already printed out above as config.malloc_conf
* - (Included) The string pointed to by the global variable malloc_conf
* - (Included) The “name” of the file referenced by the symbolic link
* named /etc/malloc.conf
* - (Included) The value of the environment variable MALLOC_CONF
* - (Optional, Unofficial) The string pointed to by the global variable
* malloc_conf_2_conf_harder, which is hidden from the public.
*
* Note: The outputs are strictly ordered by priorities (low -> high).
*
*/
#define MALLOC_CONF_WRITE(name, message) \
if (je_mallctl("opt.malloc_conf."name, (void *)&cpv, &cpsz, NULL, 0) != \
0) { \
cpv = ""; \
} \
emitter_kv(emitter, name, message, emitter_type_string, &cpv);
MALLOC_CONF_WRITE("global_var", "Global variable malloc_conf");
MALLOC_CONF_WRITE("symlink", "Symbolic link malloc.conf");
MALLOC_CONF_WRITE("env_var", "Environment variable MALLOC_CONF");
/* As this config is unofficial, skip the output if it's NULL */
if (je_mallctl("opt.malloc_conf.global_var_2_conf_harder",
(void *)&cpv, &cpsz, NULL, 0) == 0) {
emitter_kv(emitter, "global_var_2_conf_harder", "Global "
"variable malloc_conf_2_conf_harder", emitter_type_string, &cpv);
}
#undef MALLOC_CONF_WRITE
OPT_WRITE_BOOL("abort")
OPT_WRITE_BOOL("abort_conf")
OPT_WRITE_BOOL("cache_oblivious")
@@ -1554,7 +1588,7 @@ stats_general_print(emitter_t *emitter) {
OPT_WRITE_CHAR_P("stats_interval_opts")
OPT_WRITE_CHAR_P("zero_realloc")
emitter_dict_end(emitter);
emitter_dict_end(emitter); /* Close "opt". */
#undef OPT_WRITE
#undef OPT_WRITE_MUTABLE