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opt calc global bound for sql auto memory mgr

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This commit is contained in:
obdev
2024-02-07 17:05:07 +00:00
committed by ob-robot
parent 15307ef94e
commit a5ceb247de
2 changed files with 40 additions and 27 deletions
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21
src/sql/engine/ob_tenant_sql_memory_manager.h
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@ -580,7 +580,7 @@ public:
mem_target_(0), max_workarea_size_(0), workarea_hold_size_(0), max_auto_workarea_size_(0),
max_tenant_memory_size_(0),
manual_calc_cnt_(0), wa_start_(0), wa_end_(0), wa_cnt_(0),
lock_()
lock_(), global_bound_update_lock_()
{}
~ObTenantSqlMemoryManager() {}
public:
@ -632,11 +632,12 @@ private:
OB_INLINE bool need_manual_by_drift();
OB_INLINE void increase(int64_t size)
{ (ATOMIC_AAF(&drift_size_, size)); ATOMIC_INC(&profile_cnt_); }
{ (ATOMIC_AAF(&drift_size_, size)); }
OB_INLINE void decrease(int64_t size)
{ (ATOMIC_SAF(&drift_size_, size)); ATOMIC_DEC(&profile_cnt_); }
{ (ATOMIC_SAF(&drift_size_, size)); }
OB_INLINE int64_t get_drift_size() { return (ATOMIC_LOAD(&drift_size_)); }
OB_INLINE void increase_profile_cnt() { ATOMIC_INC(&profile_cnt_); }
OB_INLINE void decrease_profile_cnt() { ATOMIC_DEC(&profile_cnt_); }
void reset();
int try_push_profiles_work_area_size(int64_t global_bound_size);
int calc_work_area_size_by_profile(int64_t global_bound_size, ObSqlWorkAreaProfile &profile);
@ -702,6 +703,7 @@ private:
static const int64_t DRIFT_CNT_PERCENT = 10;
static const int64_t HASH_CNT = 256;
static const int64_t MIN_PROFILE_CHANEG_CNT = 8;
ObTenantSqlMemoryCallback sql_mem_callback_;
common::ObFIFOAllocator allocator_;
@ -730,6 +732,7 @@ private:
int64_t wa_end_;
int64_t wa_cnt_;
ObLatch lock_;
ObLatch global_bound_update_lock_;
hash::ObHashMap<ObSqlWorkAreaStat::WorkareaKey,
ObSqlWorkAreaStat*, hash::NoPthreadDefendMode> wa_ht_;
ObSEArray<ObSqlWorkAreaStat, MAX_WORKAREA_STAT_CNT> workarea_stats_;
@ -753,14 +756,16 @@ OB_INLINE bool ObTenantSqlMemoryManager::need_manual_calc_bound()
if (need_manual_by_drift()) {
manual_calc_bound = true;
} else {
int64_t delta_cnt = pre_profile_cnt_ - profile_cnt_;
if (delta_cnt > 0) {
int64_t delta_cnt = std::abs(pre_profile_cnt_ - profile_cnt_);
if (delta_cnt >= MIN_PROFILE_CHANEG_CNT) {
manual_calc_bound = profile_cnt_ * DRIFT_CNT_PERCENT / 100 < delta_cnt;
} else {
manual_calc_bound = profile_cnt_ * DRIFT_CNT_PERCENT / 100 < -delta_cnt;
}
}
}
SQL_ENG_LOG(DEBUG, "print need calc bound", K(manual_calc_bound),
K(global_bound_size_),
K(drift_size_), K(mem_target_), K(profile_cnt_),
K(pre_profile_cnt_), K(profile_cnt_));
return manual_calc_bound;
}