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Implement/test/fix prof-related mallctl's.

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Implement/test/fix the opt.prof_thread_active_init,
prof.thread_active_init, and thread.prof.active mallctl's.

Test/fix the thread.prof.name mallctl.

Refactor opt_prof_active to be read-only and move mutable state into the
prof_active variable.  Stop leaning on ctl-related locking for
protection.
This commit is contained in:
Jason Evans 2014-10-03 23:25:30 -07:00
parent 551ebc4364
commit fc12c0b8bc
11 changed files with 545 additions and 66 deletions
Download patch file Download diff file Expand all files Collapse all files

33
src/stats.c
View file

@ -336,7 +336,6 @@ stats_print(void (*write_cb)(void *, const char *), void *cbopaque,
malloc_cprintf(write_cb, cbopaque,
"___ Begin jemalloc statistics ___\n");
if (general) {
int err;
const char *cpv;
bool bv;
unsigned uv;
@ -355,26 +354,31 @@ stats_print(void (*write_cb)(void *, const char *), void *cbopaque,
bv ? "enabled" : "disabled");
#define OPT_WRITE_BOOL(n) \
if ((err = je_mallctl("opt."#n, &bv, &bsz, NULL, 0)) \
== 0) { \
if (je_mallctl("opt."#n, &bv, &bsz, NULL, 0) == 0) { \
malloc_cprintf(write_cb, cbopaque, \
" opt."#n": %s\n", bv ? "true" : "false"); \
}
#define OPT_WRITE_BOOL_MUTABLE(n, m) { \
bool bv2; \
if (je_mallctl("opt."#n, &bv, &bsz, NULL, 0) == 0 && \
je_mallctl(#m, &bv2, &bsz, NULL, 0) == 0) { \
malloc_cprintf(write_cb, cbopaque, \
" opt."#n": %s ("#m": %s)\n", bv ? "true" \
: "false", bv2 ? "true" : "false"); \
} \
}
#define OPT_WRITE_SIZE_T(n) \
if ((err = je_mallctl("opt."#n, &sv, &ssz, NULL, 0)) \
== 0) { \
if (je_mallctl("opt."#n, &sv, &ssz, NULL, 0) == 0) { \
malloc_cprintf(write_cb, cbopaque, \
" opt."#n": %zu\n", sv); \
}
#define OPT_WRITE_SSIZE_T(n) \
if ((err = je_mallctl("opt."#n, &ssv, &sssz, NULL, 0)) \
== 0) { \
if (je_mallctl("opt."#n, &ssv, &sssz, NULL, 0) == 0) { \
malloc_cprintf(write_cb, cbopaque, \
" opt."#n": %zd\n", ssv); \
}
#define OPT_WRITE_CHAR_P(n) \
if ((err = je_mallctl("opt."#n, &cpv, &cpsz, NULL, 0)) \
== 0) { \
if (je_mallctl("opt."#n, &cpv, &cpsz, NULL, 0) == 0) { \
malloc_cprintf(write_cb, cbopaque, \
" opt."#n": \"%s\"\n", cpv); \
}
@ -398,7 +402,9 @@ stats_print(void (*write_cb)(void *, const char *), void *cbopaque,
OPT_WRITE_SSIZE_T(lg_tcache_max)
OPT_WRITE_BOOL(prof)
OPT_WRITE_CHAR_P(prof_prefix)
OPT_WRITE_BOOL(prof_active)
OPT_WRITE_BOOL_MUTABLE(prof_active, prof.active)
OPT_WRITE_BOOL_MUTABLE(prof_thread_active_init,
prof.thread_active_init)
OPT_WRITE_SSIZE_T(lg_prof_sample)
OPT_WRITE_BOOL(prof_accum)
OPT_WRITE_SSIZE_T(lg_prof_interval)
@ -407,6 +413,7 @@ stats_print(void (*write_cb)(void *, const char *), void *cbopaque,
OPT_WRITE_BOOL(prof_leak)
#undef OPT_WRITE_BOOL
#undef OPT_WRITE_BOOL_MUTABLE
#undef OPT_WRITE_SIZE_T
#undef OPT_WRITE_SSIZE_T
#undef OPT_WRITE_CHAR_P
@ -434,13 +441,11 @@ stats_print(void (*write_cb)(void *, const char *), void *cbopaque,
malloc_cprintf(write_cb, cbopaque,
"Min active:dirty page ratio per arena: N/A\n");
}
if ((err = je_mallctl("arenas.tcache_max", &sv, &ssz, NULL, 0))
== 0) {
if (je_mallctl("arenas.tcache_max", &sv, &ssz, NULL, 0) == 0) {
malloc_cprintf(write_cb, cbopaque,
"Maximum thread-cached size class: %zu\n", sv);
}
if ((err = je_mallctl("opt.prof", &bv, &bsz, NULL, 0)) == 0 &&
bv) {
if (je_mallctl("opt.prof", &bv, &bsz, NULL, 0) == 0 && bv) {
CTL_GET("prof.lg_sample", &sv, size_t);
malloc_cprintf(write_cb, cbopaque,
"Average profile sample interval: %"PRIu64