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High Resolution Timestamps for Profiling

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This commit is contained in:
Jon Haslam
2020-06-02 06:42:44 -07:00
committed by David Goldblatt
parent d82a164d0d
commit 4aea743279
13 changed files with 123 additions and 39 deletions
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5
include/jemalloc/internal/jemalloc_internal_defs.h.in
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@@ -100,6 +100,11 @@
*/
#undef JEMALLOC_HAVE_MACH_ABSOLUTE_TIME
/*
* Defined if clock_gettime(CLOCK_REALTIME, ...) is available.
*/
#undef JEMALLOC_HAVE_CLOCK_REALTIME
/*
* Defined if _malloc_thread_cleanup() exists. At least in the case of
* FreeBSD, pthread_key_create() allocates, which if used during malloc

1
include/jemalloc/internal/jemalloc_internal_externs.h
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@@ -3,6 +3,7 @@
#include "jemalloc/internal/atomic.h"
#include "jemalloc/internal/tsd_types.h"
#include "jemalloc/internal/nstime.h"
/* TSD checks this to set thread local slow state accordingly. */
extern bool malloc_slow;

7
include/jemalloc/internal/jemalloc_preamble.h.in
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@@ -209,5 +209,12 @@ static const bool have_background_thread =
false
#endif
;
static const bool config_high_res_timer =
#ifdef JEMALLOC_HAVE_CLOCK_REALTIME
true
#else
false
#endif
;
#endif /* JEMALLOC_PREAMBLE_H */

17
include/jemalloc/internal/nstime.h
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@@ -30,10 +30,23 @@ uint64_t nstime_divide(const nstime_t *time, const nstime_t *divisor);
typedef bool (nstime_monotonic_t)(void);
extern nstime_monotonic_t *JET_MUTABLE nstime_monotonic;
typedef bool (nstime_update_t)(nstime_t *);
typedef void (nstime_update_t)(nstime_t *);
extern nstime_update_t *JET_MUTABLE nstime_update;
bool nstime_init_update(nstime_t *time);
typedef void (nstime_prof_update_t)(nstime_t *);
extern nstime_prof_update_t *JET_MUTABLE nstime_prof_update;
void nstime_init_update(nstime_t *time);
void nstime_prof_init_update(nstime_t *time);
enum prof_time_res_e {
prof_time_res_default = 0,
prof_time_res_high = 1
};
typedef enum prof_time_res_e prof_time_res_t;
extern prof_time_res_t opt_prof_time_res;
extern const char *prof_time_res_mode_names[];
JEMALLOC_ALWAYS_INLINE void
nstime_init_zero(nstime_t *time) {