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Only compute thread event threshold once per trigger

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This commit is contained in:
Yinan Zhang
2020-03-25 09:33:52 -07:00
parent 7324c4f85f
commit f72014d097
2 changed files with 63 additions and 95 deletions
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12
include/jemalloc/internal/thread_event.h
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@@ -32,7 +32,7 @@ typedef struct te_ctx_s {
} te_ctx_t;
void te_assert_invariants_debug(tsd_t *tsd);
void te_event_trigger(tsd_t *tsd, te_ctx_t *ctx, bool delay_event);
void te_event_trigger(tsd_t *tsd, te_ctx_t *ctx);
void te_recompute_fast_threshold(tsd_t *tsd);
void tsd_te_init(tsd_t *tsd);
@@ -183,11 +183,9 @@ te_ctx_next_event_set(tsd_t *tsd, te_ctx_t *ctx, uint64_t v) {
* The function checks in debug mode whether the thread event counters are in
* a consistent state, which forms the invariants before and after each round
* of thread event handling that we can rely on and need to promise.
* The invariants are only temporarily violated in the middle of:
* (a) event_advance() if an event is triggered (the te_event_trigger() call
* at the end will restore the invariants), or
* (b) te_##event##_event_update() (the te_event_update() call at the
* end will restore the invariants).
* The invariants are only temporarily violated in the middle of
* te_event_advance() if an event is triggered (the te_event_trigger() call at
* the end will restore the invariants).
*/
JEMALLOC_ALWAYS_INLINE void
te_assert_invariants(tsd_t *tsd) {
@@ -236,7 +234,7 @@ te_event_advance(tsd_t *tsd, size_t usize, bool is_alloc) {
if (likely(usize < te_ctx_next_event_get(&ctx) - bytes_before)) {
te_assert_invariants(tsd);
} else {
te_event_trigger(tsd, &ctx, false);
te_event_trigger(tsd, &ctx);
}
}