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refactor prof accum, so that tdata is not loaded if we aren't going to sample.

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This commit is contained in:
Dave Watson 2018-10-09 11:07:24 -07:00
parent 9ed3bdc848
commit 0ac524308d
1 changed files with 14 additions and 14 deletions
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28
include/jemalloc/internal/prof_inlines_b.h
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@ -86,6 +86,14 @@ prof_sample_accum_update(tsd_t *tsd, size_t usize, bool update,
cassert(config_prof); cassert(config_prof);
bytes_until_sample = tsd_bytes_until_sample_get(tsd);
if (likely(bytes_until_sample >= usize)) {
if (update && tsd_nominal(tsd)) {
tsd_bytes_until_sample_set(tsd, bytes_until_sample - usize);
}
return true;
}
tdata = prof_tdata_get(tsd, true); tdata = prof_tdata_get(tsd, true);
if (unlikely((uintptr_t)tdata <= (uintptr_t)PROF_TDATA_STATE_MAX)) { if (unlikely((uintptr_t)tdata <= (uintptr_t)PROF_TDATA_STATE_MAX)) {
tdata = NULL; tdata = NULL;
@ -99,22 +107,14 @@ prof_sample_accum_update(tsd_t *tsd, size_t usize, bool update,
return true; return true;
} }
bytes_until_sample = tsd_bytes_until_sample_get(tsd); if (tsd_reentrancy_level_get(tsd) > 0) {
if (likely(bytes_until_sample >= usize)) {
if (update && tsd_nominal(tsd)) {
tsd_bytes_until_sample_set(tsd, bytes_until_sample - usize);
}
return true; return true;
} else {
if (tsd_reentrancy_level_get(tsd) > 0) {
return true;
}
/* Compute new sample threshold. */
if (update) {
prof_sample_threshold_update(tdata);
}
return !tdata->active;
} }
/* Compute new sample threshold. */
if (update) {
prof_sample_threshold_update(tdata);
}
return !tdata->active;
} }
JEMALLOC_ALWAYS_INLINE prof_tctx_t * JEMALLOC_ALWAYS_INLINE prof_tctx_t *