129 lines
4.9 KiB
C++
129 lines
4.9 KiB
C++
/**
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* Copyright (c) 2021 OceanBase
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* OceanBase CE is licensed under Mulan PubL v2.
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* You can use this software according to the terms and conditions of the Mulan PubL v2.
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* You may obtain a copy of Mulan PubL v2 at:
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* http://license.coscl.org.cn/MulanPubL-2.0
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* THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND,
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* EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT,
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* MERCHANTABILITY OR FIT FOR A PARTICULAR PURPOSE.
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* See the Mulan PubL v2 for more details.
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*/
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#define USING_LOG_PREFIX SQL_MONITOR
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#include "sql/monitor/ob_phy_operator_stats.h"
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#include "sql/monitor/ob_phy_operator_monitor_info.h"
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#include "sql/engine/ob_physical_plan.h"
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#include "sql/plan_cache/ob_plan_cache_util.h"
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#include "lib/allocator/ob_allocator.h"
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#include "lib/atomic/ob_atomic.h"
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#include "lib/utility/utility.h"
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using namespace oceanbase::common;
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namespace oceanbase
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{
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namespace sql
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{
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int ObPhyOperatorStats::init(ObIAllocator *alloc, int64_t op_count)
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{
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int ret = OB_SUCCESS;
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void *ptr = NULL;
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if (OB_ISNULL(alloc) || OB_UNLIKELY(op_count < 0)) {
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ret = OB_INVALID_ARGUMENT;
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LOG_WARN("invalid argument", K(ret),K(alloc), K(op_count));
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} else {
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array_size_ = op_count * StatId::MAX_STAT * COPY_COUNT;
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//2是为了保存plan_id 和operation_id
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//没有必须要存operation id , 可以通过下标计算出来
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if (OB_ISNULL(ptr = alloc->alloc(sizeof(int64_t) * array_size_))) {
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ret = OB_ALLOCATE_MEMORY_FAILED;
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LOG_ERROR("fail to alloc memory for aray", K(ret), K_(array_size));
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} else {
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op_stats_array_ = static_cast<int64_t *>(ptr);
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memset(op_stats_array_, 0, sizeof(int64_t) * array_size_);
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op_count_ = op_count;
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}
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}
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return ret;
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}
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/*
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*
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* |- COPY1 -||- COPY2 -|
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* |- op1 -||- op2 -||- op1
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* |---------------------------------------------------------+---------------------------|
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* | E0 | I0 | O0 | R0 || E'1 | I'1 | O'1 | R'1 || ...
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* |-------------------------------------------------------------------------------------|
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*
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* E: EXEC_COUNT
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* I: INPUT_ROWS
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* O: OUTPUT_ROWS
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* R: RESCAN_TIMES
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* COPY = 10
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*/
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int ObPhyOperatorStats::add_op_stat(ObPhyOperatorMonitorInfo &info)
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{
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int ret = OB_SUCCESS;
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const int64_t COPY_SIZE = op_count_ * StatId::MAX_STAT;
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int64_t copy_start_index = (get_cpu_id() % COPY_COUNT) * COPY_SIZE;
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int64_t stat_start_index = copy_start_index + info.get_op_id() * StatId::MAX_STAT;
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if (stat_start_index < 0 || stat_start_index + StatId::MAX_STAT > array_size_) {
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ret = OB_ERR_UNEXPECTED;
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LOG_WARN("invalid array index", K(stat_start_index), K(array_size_));
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} else {
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int64_t last_input_rows = 0;
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int64_t last_output_rows = 0;
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int64_t rescan_times = 0;
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info.get_value(INPUT_ROW_COUNT, last_input_rows);
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info.get_value(OUTPUT_ROW_COUNT, last_output_rows);
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info.get_value(RESCAN_TIMES, rescan_times);
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ATOMIC_AAF(&(op_stats_array_[stat_start_index + StatId::INPUT_ROWS]), last_input_rows);
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ATOMIC_AAF(&(op_stats_array_[stat_start_index + StatId::OUTPUT_ROWS]), last_output_rows);
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ATOMIC_AAF(&(op_stats_array_[stat_start_index + StatId::RESCAN_TIMES]), rescan_times);
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}
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return ret;
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}
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int ObPhyOperatorStats::get_op_stat_accumulation(ObPhysicalPlan *plan,
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int64_t op_id,
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ObOperatorStat &stat)
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{
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int ret = OB_SUCCESS;
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if (OB_ISNULL(plan)) {
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ret = OB_INVALID_ARGUMENT;
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LOG_WARN("invalid argument", K(plan));
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} else {
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int64_t exec_times = 0;
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int64_t op_first_index = op_id * StatId::MAX_STAT;
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int64_t retry_times = 3;
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const int64_t COPY_SIZE = op_count_ * StatId::MAX_STAT;
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int64_t copy_start_index = 0;
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int64_t max_index = op_first_index + (COPY_COUNT - 1) * COPY_SIZE + StatId::MAX_STAT;
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if (op_first_index < 0 || max_index > array_size_) {
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ret = OB_ERR_UNEXPECTED;
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LOG_WARN("invalid array index", K(op_first_index), K(max_index), K(array_size_));
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} else {
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do {
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exec_times = ATOMIC_LOAD(&(execution_times_));
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stat.init();
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stat.execute_times_ = exec_times;
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retry_times --;
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for (int64_t i = 0; i < COPY_COUNT; i++) {
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copy_start_index = op_first_index + i * COPY_SIZE;
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stat.input_rows_ += ATOMIC_LOAD(&(op_stats_array_[copy_start_index + StatId::INPUT_ROWS]));
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stat.rescan_times_ += ATOMIC_LOAD(&(op_stats_array_[copy_start_index +StatId::RESCAN_TIMES]));
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stat.output_rows_ += ATOMIC_LOAD(&(op_stats_array_[copy_start_index + StatId::OUTPUT_ROWS]));
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}
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} while (exec_times != ATOMIC_LOAD(&(execution_times_))
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&& retry_times > 0);
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}
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if (OB_SUCC(ret)) {
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stat.operation_id_ = op_id;
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stat.plan_id_ = plan->get_plan_id();
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}
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}
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return ret;
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}
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} //namespace sql
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} //namespace oceanbase
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