mirror of https://gitee.com/bigwinds/arangodb
602 lines
22 KiB
C++
602 lines
22 KiB
C++
////////////////////////////////////////////////////////////////////////////////
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/// @brief statistics basics
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///
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/// @file
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///
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/// DISCLAIMER
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///
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/// Copyright 2004-2014 triAGENS GmbH, Cologne, Germany
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///
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/// Licensed under the Apache License, Version 2.0 (the "License");
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/// you may not use this file except in compliance with the License.
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/// You may obtain a copy of the License at
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///
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/// http://www.apache.org/licenses/LICENSE-2.0
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///
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/// Unless required by applicable law or agreed to in writing, software
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/// distributed under the License is distributed on an "AS IS" BASIS,
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/// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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/// See the License for the specific language governing permissions and
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/// limitations under the License.
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///
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/// Copyright holder is triAGENS GmbH, Cologne, Germany
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///
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/// @author Dr. Frank Celler
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/// @author Copyright 2012-2014, triAGENS GmbH, Cologne, Germany
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////////////////////////////////////////////////////////////////////////////////
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#include "statistics.h"
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#include "BasicsC/locks.h"
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#ifdef TRI_HAVE_MACOS_MEM_STATS
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#include <sys/types.h>
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#include <sys/sysctl.h>
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#endif
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using namespace triagens::basics;
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using namespace std;
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#ifdef TRI_USE_SPIN_LOCK_STATISTICS
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#define STATISTICS_TYPE TRI_spin_t
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#define STATISTICS_INIT TRI_InitSpin
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#define STATISTICS_DESTROY TRI_DestroySpin
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#define STATISTICS_LOCK TRI_LockSpin
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#define STATISTICS_UNLOCK TRI_UnlockSpin
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#else
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#define STATISTICS_TYPE TRI_mutex_t
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#define STATISTICS_INIT TRI_InitMutex
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#define STATISTICS_DESTROY TRI_DestroyMutex
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#define STATISTICS_LOCK TRI_LockMutex
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#define STATISTICS_UNLOCK TRI_UnlockMutex
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#endif
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// -----------------------------------------------------------------------------
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// --SECTION-- private request statistics variables
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// -----------------------------------------------------------------------------
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////////////////////////////////////////////////////////////////////////////////
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/// @brief lock for lists
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////////////////////////////////////////////////////////////////////////////////
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static STATISTICS_TYPE RequestListLock;
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////////////////////////////////////////////////////////////////////////////////
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/// @brief free list
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////////////////////////////////////////////////////////////////////////////////
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static TRI_statistics_list_t RequestFreeList;
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// -----------------------------------------------------------------------------
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// --SECTION-- public request statistics functions
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// -----------------------------------------------------------------------------
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////////////////////////////////////////////////////////////////////////////////
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/// @brief gets a new statistics block
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////////////////////////////////////////////////////////////////////////////////
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TRI_request_statistics_t* TRI_AcquireRequestStatistics () {
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TRI_request_statistics_t* statistics = NULL;
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STATISTICS_LOCK(&RequestListLock);
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if (RequestFreeList._first != NULL) {
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statistics = (TRI_request_statistics_t*) RequestFreeList._first;
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RequestFreeList._first = RequestFreeList._first->_next;
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}
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STATISTICS_UNLOCK(&RequestListLock);
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return statistics;
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}
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////////////////////////////////////////////////////////////////////////////////
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/// @brief releases a statistics block
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////////////////////////////////////////////////////////////////////////////////
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void TRI_ReleaseRequestStatistics (TRI_request_statistics_t* statistics) {
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STATISTICS_LOCK(&RequestListLock);
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if (! statistics->_ignore) {
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TRI_TotalRequestsStatistics.incCounter();
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if (statistics->_async) {
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TRI_AsyncRequestsStatistics.incCounter();
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}
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TRI_MethodRequestsStatistics[(int) statistics->_requestType].incCounter();
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// check the request was completely received and transmitted
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if (statistics->_readStart != 0.0 && statistics->_writeEnd != 0.0) {
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double totalTime = statistics->_writeEnd - statistics->_readStart;
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TRI_TotalTimeDistributionStatistics->addFigure(totalTime);
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double requestTime = statistics->_requestEnd - statistics->_requestStart;
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TRI_RequestTimeDistributionStatistics->addFigure(requestTime);
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if (statistics->_queueStart != 0.0 && statistics->_queueEnd != 0.0) {
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double queueTime = statistics->_queueEnd - statistics->_queueStart;
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TRI_QueueTimeDistributionStatistics->addFigure(queueTime);
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}
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TRI_BytesSentDistributionStatistics->addFigure(statistics->_sentBytes);
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TRI_BytesReceivedDistributionStatistics->addFigure(statistics->_receivedBytes);
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}
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}
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// clear statistics and put back an the free list
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memset(statistics, 0, sizeof(TRI_request_statistics_t));
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statistics->_requestType = triagens::rest::HttpRequest::HTTP_REQUEST_ILLEGAL;
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if (RequestFreeList._first == NULL) {
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RequestFreeList._first = (TRI_statistics_entry_t*) statistics;
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RequestFreeList._last = (TRI_statistics_entry_t*) statistics;
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}
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else {
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RequestFreeList._last->_next = (TRI_statistics_entry_t*) statistics;
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RequestFreeList._last = (TRI_statistics_entry_t*) statistics;
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}
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RequestFreeList._last->_next = 0;
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STATISTICS_UNLOCK(&RequestListLock);
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}
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////////////////////////////////////////////////////////////////////////////////
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/// @brief fills the current statistics
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////////////////////////////////////////////////////////////////////////////////
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void TRI_FillRequestStatistics (StatisticsDistribution& totalTime,
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StatisticsDistribution& requestTime,
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StatisticsDistribution& queueTime,
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StatisticsDistribution& bytesSent,
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StatisticsDistribution& bytesReceived) {
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STATISTICS_LOCK(&RequestListLock);
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totalTime = *TRI_TotalTimeDistributionStatistics;
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requestTime = *TRI_RequestTimeDistributionStatistics;
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queueTime = *TRI_QueueTimeDistributionStatistics;
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bytesSent = *TRI_BytesSentDistributionStatistics;
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bytesReceived = *TRI_BytesReceivedDistributionStatistics;
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STATISTICS_UNLOCK(&RequestListLock);
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}
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// -----------------------------------------------------------------------------
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// --SECTION-- private connection statistics variables
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// -----------------------------------------------------------------------------
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////////////////////////////////////////////////////////////////////////////////
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/// @brief lock for lists
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////////////////////////////////////////////////////////////////////////////////
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static STATISTICS_TYPE ConnectionListLock;
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////////////////////////////////////////////////////////////////////////////////
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/// @brief free list
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////////////////////////////////////////////////////////////////////////////////
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static TRI_statistics_list_t ConnectionFreeList;
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// -----------------------------------------------------------------------------
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// --SECTION-- public connection statistics functions
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// -----------------------------------------------------------------------------
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////////////////////////////////////////////////////////////////////////////////
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/// @brief gets a new statistics block
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////////////////////////////////////////////////////////////////////////////////
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TRI_connection_statistics_t* TRI_AcquireConnectionStatistics () {
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TRI_connection_statistics_t* statistics = 0;
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STATISTICS_LOCK(&ConnectionListLock);
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if (ConnectionFreeList._first != NULL) {
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statistics = (TRI_connection_statistics_t*) ConnectionFreeList._first;
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ConnectionFreeList._first = ConnectionFreeList._first->_next;
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}
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STATISTICS_UNLOCK(&ConnectionListLock);
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return statistics;
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}
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////////////////////////////////////////////////////////////////////////////////
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/// @brief releases a statistics block
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////////////////////////////////////////////////////////////////////////////////
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void TRI_ReleaseConnectionStatistics (TRI_connection_statistics_t* statistics) {
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STATISTICS_LOCK(&ConnectionListLock);
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if (statistics->_http) {
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if (statistics->_connStart != 0) {
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if (statistics->_connEnd == 0) {
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TRI_HttpConnectionsStatistics.incCounter();
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}
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else {
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TRI_HttpConnectionsStatistics.decCounter();
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double totalTime = statistics->_connEnd - statistics->_connStart;
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TRI_ConnectionTimeDistributionStatistics->addFigure(totalTime);
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}
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}
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}
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// clear statistics and put back an the free list
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memset(statistics, 0, sizeof(TRI_connection_statistics_t));
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if (ConnectionFreeList._first == NULL) {
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ConnectionFreeList._first = (TRI_statistics_entry_t*) statistics;
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ConnectionFreeList._last = (TRI_statistics_entry_t*) statistics;
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}
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else {
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ConnectionFreeList._last->_next = (TRI_statistics_entry_t*) statistics;
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ConnectionFreeList._last = (TRI_statistics_entry_t*) statistics;
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}
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ConnectionFreeList._last->_next = 0;
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STATISTICS_UNLOCK(&ConnectionListLock);
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}
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////////////////////////////////////////////////////////////////////////////////
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/// @brief fills the current statistics
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////////////////////////////////////////////////////////////////////////////////
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void TRI_FillConnectionStatistics (StatisticsCounter& httpConnections,
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StatisticsCounter& totalRequests,
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vector<StatisticsCounter>& methodRequests,
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StatisticsCounter& asyncRequests,
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StatisticsDistribution& connectionTime) {
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STATISTICS_LOCK(&ConnectionListLock);
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httpConnections = TRI_HttpConnectionsStatistics;
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totalRequests = TRI_TotalRequestsStatistics;
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methodRequests = TRI_MethodRequestsStatistics;
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asyncRequests = TRI_AsyncRequestsStatistics;
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connectionTime = *TRI_ConnectionTimeDistributionStatistics;
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STATISTICS_UNLOCK(&ConnectionListLock);
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}
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// -----------------------------------------------------------------------------
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// --SECTION-- public server statistics functions
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// -----------------------------------------------------------------------------
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////////////////////////////////////////////////////////////////////////////////
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/// @brief gets the global server statistics
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////////////////////////////////////////////////////////////////////////////////
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TRI_server_statistics_t TRI_GetServerStatistics () {
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TRI_server_statistics_t server;
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server._startTime = TRI_ServerStatistics._startTime;
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server._uptime = TRI_microtime() - server._startTime;
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return server;
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}
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// -----------------------------------------------------------------------------
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// --SECTION-- private functions
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// -----------------------------------------------------------------------------
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////////////////////////////////////////////////////////////////////////////////
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/// @brief fills a linked list
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////////////////////////////////////////////////////////////////////////////////
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static void FillStatisticsList (TRI_statistics_list_t* list, size_t element, size_t count) {
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size_t i;
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TRI_statistics_entry_t* entry;
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entry = (TRI_statistics_entry_t*) TRI_Allocate(TRI_CORE_MEM_ZONE, element, true);
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list->_first = entry;
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list->_last = entry;
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for (i = 1; i < count; ++i) {
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entry = (TRI_statistics_entry_t*) TRI_Allocate(TRI_CORE_MEM_ZONE, element, true);
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list->_last->_next = entry;
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list->_last = entry;
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}
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}
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////////////////////////////////////////////////////////////////////////////////
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/// @brief destroys a linked list
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////////////////////////////////////////////////////////////////////////////////
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static void DestroyStatisticsList (TRI_statistics_list_t* list) {
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TRI_statistics_entry_t* entry = list->_first;
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while (entry != NULL) {
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TRI_statistics_entry_t* next = entry->_next;
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TRI_Free(TRI_CORE_MEM_ZONE, entry);
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entry = next;
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}
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list->_first = list->_last = NULL;
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}
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////////////////////////////////////////////////////////////////////////////////
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/// @brief gets the physical memory
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////////////////////////////////////////////////////////////////////////////////
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#ifdef TRI_HAVE_MACOS_MEM_STATS
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static uint64_t GetPhysicalMemory () {
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int mib[2];
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int64_t physicalMemory;
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size_t length;
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// Get the Physical memory size
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mib[0] = CTL_HW;
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mib[1] = HW_MEMSIZE;
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length = sizeof(int64_t);
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sysctl(mib, 2, &physicalMemory, &length, NULL, 0);
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return (uint64_t) physicalMemory;
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}
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#else
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#ifdef TRI_HAVE_SC_PHYS_PAGES
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static uint64_t GetPhysicalMemory () {
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long pages = sysconf(_SC_PHYS_PAGES);
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long page_size = sysconf(_SC_PAGE_SIZE);
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return (uint64_t)(pages * page_size);
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}
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#else
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#ifdef TRI_HAVE_WIN32_GLOBAL_MEMORY_STATUS
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static uint64_t GetPhysicalMemory () {
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MEMORYSTATUSEX status;
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status.dwLength = sizeof(status);
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GlobalMemoryStatusEx(&status);
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return (uint64_t) status.ullTotalPhys;
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}
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#else
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static uint64_t TRI_GetPhysicalMemory () {
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PROCESS_MEMORY_COUNTERS pmc;
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memset(&result, 0, sizeof(result));
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pmc.cb = sizeof(PROCESS_MEMORY_COUNTERS);
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// http://msdn.microsoft.com/en-us/library/windows/desktop/ms684874(v=vs.85).aspx
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if (GetProcessMemoryInfo(GetCurrentProcess(), &pmc, pmc.cb)) {
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return pmc.PeakWorkingSetSize;
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}
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return 0;
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}
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#endif
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#endif
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#endif
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// -----------------------------------------------------------------------------
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// --SECTION-- public variable
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// -----------------------------------------------------------------------------
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////////////////////////////////////////////////////////////////////////////////
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/// @brief statistics enabled flags
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////////////////////////////////////////////////////////////////////////////////
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bool TRI_ENABLE_STATISTICS = true;
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////////////////////////////////////////////////////////////////////////////////
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/// @brief number of http connections
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////////////////////////////////////////////////////////////////////////////////
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StatisticsCounter TRI_HttpConnectionsStatistics;
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////////////////////////////////////////////////////////////////////////////////
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/// @brief total number of requests
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////////////////////////////////////////////////////////////////////////////////
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StatisticsCounter TRI_TotalRequestsStatistics;
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////////////////////////////////////////////////////////////////////////////////
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/// @brief number of requests by HTTP method
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////////////////////////////////////////////////////////////////////////////////
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std::vector<StatisticsCounter> TRI_MethodRequestsStatistics;
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////////////////////////////////////////////////////////////////////////////////
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/// @brief number of async requests
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////////////////////////////////////////////////////////////////////////////////
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StatisticsCounter TRI_AsyncRequestsStatistics;
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////////////////////////////////////////////////////////////////////////////////
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/// @brief connection time distribution vector
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////////////////////////////////////////////////////////////////////////////////
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StatisticsVector TRI_ConnectionTimeDistributionVectorStatistics;
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////////////////////////////////////////////////////////////////////////////////
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/// @brief total time distribution
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////////////////////////////////////////////////////////////////////////////////
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StatisticsDistribution* TRI_ConnectionTimeDistributionStatistics;
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////////////////////////////////////////////////////////////////////////////////
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/// @brief request time distribution vector
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////////////////////////////////////////////////////////////////////////////////
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StatisticsVector TRI_RequestTimeDistributionVectorStatistics;
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////////////////////////////////////////////////////////////////////////////////
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/// @brief total time distribution
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////////////////////////////////////////////////////////////////////////////////
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StatisticsDistribution* TRI_TotalTimeDistributionStatistics;
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////////////////////////////////////////////////////////////////////////////////
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/// @brief request time distribution
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////////////////////////////////////////////////////////////////////////////////
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StatisticsDistribution* TRI_RequestTimeDistributionStatistics;
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////////////////////////////////////////////////////////////////////////////////
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/// @brief queue time distribution
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////////////////////////////////////////////////////////////////////////////////
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StatisticsDistribution* TRI_QueueTimeDistributionStatistics;
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////////////////////////////////////////////////////////////////////////////////
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/// @brief bytes sent distribution vector
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////////////////////////////////////////////////////////////////////////////////
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StatisticsVector TRI_BytesSentDistributionVectorStatistics;
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////////////////////////////////////////////////////////////////////////////////
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/// @brief bytes sent distribution
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////////////////////////////////////////////////////////////////////////////////
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StatisticsDistribution* TRI_BytesSentDistributionStatistics;
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////////////////////////////////////////////////////////////////////////////////
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/// @brief bytes received distribution vector
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////////////////////////////////////////////////////////////////////////////////
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StatisticsVector TRI_BytesReceivedDistributionVectorStatistics;
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////////////////////////////////////////////////////////////////////////////////
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/// @brief bytes received distribution
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////////////////////////////////////////////////////////////////////////////////
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StatisticsDistribution* TRI_BytesReceivedDistributionStatistics;
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////////////////////////////////////////////////////////////////////////////////
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/// @brief global server statistics
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////////////////////////////////////////////////////////////////////////////////
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TRI_server_statistics_t TRI_ServerStatistics;
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////////////////////////////////////////////////////////////////////////////////
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/// @brief physical memeory
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////////////////////////////////////////////////////////////////////////////////
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uint64_t TRI_PhysicalMemory;
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// -----------------------------------------------------------------------------
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// --SECTION-- public functions
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// -----------------------------------------------------------------------------
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////////////////////////////////////////////////////////////////////////////////
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/// @brief gets the current wallclock time
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////////////////////////////////////////////////////////////////////////////////
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#ifdef TRI_ENABLE_HIRES_FIGURES
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double TRI_StatisticsTime () {
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struct timespec tp;
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clock_gettime(CLOCK_REALTIME, &tp);
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return tp.tv_sec + (tp.tv_nsec / 1000000000.0);
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}
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#else
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double TRI_StatisticsTime () {
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return TRI_microtime();
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}
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#endif
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// -----------------------------------------------------------------------------
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// --SECTION-- module initialisation
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// -----------------------------------------------------------------------------
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////////////////////////////////////////////////////////////////////////////////
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/// @brief module init function
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////////////////////////////////////////////////////////////////////////////////
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void TRI_InitialiseStatistics () {
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TRI_ServerStatistics._startTime = TRI_microtime();
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TRI_PhysicalMemory = GetPhysicalMemory();
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#if TRI_ENABLE_FIGURES
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static size_t const QUEUE_SIZE = 1000;
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// .............................................................................
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// sets up the statistics
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// .............................................................................
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TRI_ConnectionTimeDistributionVectorStatistics << (0.1) << (1.0) << (60.0);
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TRI_BytesSentDistributionVectorStatistics << (250) << (1000) << (2 * 1000) << (5 * 1000) << (10 * 1000);
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TRI_BytesReceivedDistributionVectorStatistics << (250) << (1000) << (2 * 1000) << (5 * 1000) << (10 * 1000);
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#ifdef TRI_ENABLE_HIRES_FIGURES
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TRI_RequestTimeDistributionVectorStatistics << (0.0001) << (0.05) << (0.1) << (0.2) << (0.5) << (1.0);
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#else
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TRI_RequestTimeDistributionVectorStatistics << (0.01) << (0.05) << (0.1) << (0.2) << (0.5) << (1.0);
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#endif
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TRI_ConnectionTimeDistributionStatistics = new StatisticsDistribution(TRI_ConnectionTimeDistributionVectorStatistics);
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TRI_TotalTimeDistributionStatistics = new StatisticsDistribution(TRI_RequestTimeDistributionVectorStatistics);
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TRI_RequestTimeDistributionStatistics = new StatisticsDistribution(TRI_RequestTimeDistributionVectorStatistics);
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TRI_QueueTimeDistributionStatistics = new StatisticsDistribution(TRI_RequestTimeDistributionVectorStatistics);
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TRI_BytesSentDistributionStatistics = new StatisticsDistribution(TRI_BytesSentDistributionVectorStatistics);
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TRI_BytesReceivedDistributionStatistics = new StatisticsDistribution(TRI_BytesReceivedDistributionVectorStatistics);
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// initialise counters for all HTTP request types
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TRI_MethodRequestsStatistics.clear();
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for (int i = 0; i < ((int) triagens::rest::HttpRequest::HTTP_REQUEST_ILLEGAL) + 1; ++i) {
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StatisticsCounter c;
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TRI_MethodRequestsStatistics.push_back(c);
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}
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// .............................................................................
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// generate the request statistics queue
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// .............................................................................
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RequestFreeList._first = RequestFreeList._last = NULL;
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FillStatisticsList(&RequestFreeList, sizeof(TRI_request_statistics_t), QUEUE_SIZE);
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STATISTICS_INIT(&RequestListLock);
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// .............................................................................
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// generate the connection statistics queue
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// .............................................................................
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ConnectionFreeList._first = ConnectionFreeList._last = NULL;
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FillStatisticsList(&ConnectionFreeList, sizeof(TRI_connection_statistics_t), QUEUE_SIZE);
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STATISTICS_INIT(&ConnectionListLock);
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#endif
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}
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////////////////////////////////////////////////////////////////////////////////
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/// @brief shut down statistics
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////////////////////////////////////////////////////////////////////////////////
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void TRI_ShutdownStatistics (void) {
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#if TRI_ENABLE_FIGURES
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delete TRI_ConnectionTimeDistributionStatistics;
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delete TRI_TotalTimeDistributionStatistics;
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delete TRI_RequestTimeDistributionStatistics;
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delete TRI_QueueTimeDistributionStatistics;
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delete TRI_BytesSentDistributionStatistics;
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delete TRI_BytesReceivedDistributionStatistics;
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DestroyStatisticsList(&RequestFreeList);
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DestroyStatisticsList(&ConnectionFreeList);
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#endif
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}
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// -----------------------------------------------------------------------------
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// --SECTION-- END-OF-FILE
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// -----------------------------------------------------------------------------
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// Local Variables:
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// mode: outline-minor
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// outline-regexp: "/// @brief\\|/// {@inheritDoc}\\|/// @addtogroup\\|/// @page\\|// --SECTION--\\|/// @\\}"
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// End:
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