Niclas Antti e56492c23f MXS-1777 Make "Sample Max" of the server EMAverage adaptive
A rather simple but very effective method as testing shows.
2018-10-04 17:53:57 +03:00

59 lines
1.2 KiB
C++

/*
* Copyright (c) 2018 MariaDB Corporation Ab
*
* Use of this software is governed by the Business Source License included
* in the LICENSE.TXT file and at www.mariadb.com/bsl11.
*
* Change Date: 2022-01-01
*
* On the date above, in accordance with the Business Source License, use
* of this software will be governed by version 2 or later of the General
* Public License.
*/
#pragma once
/**
* Internal header for the server type
*/
#include <maxbase/ccdefs.hh>
#include <mutex>
#include <maxbase/average.hh>
#include <maxscale/server.h>
#include <maxscale/resultset.hh>
#include <maxscale/routingworker.hh>
std::unique_ptr<ResultSet> serverGetList();
// Private server implementation
class Server : public SERVER
{
public:
Server()
: m_response_time(maxbase::EMAverage {0.04, 0.35, 500})
{
}
int response_time_num_samples() const
{
return m_response_time.num_samples();
}
double response_time_average() const
{
return m_response_time.average();
}
void response_time_add(double ave, int num_samples);
mutable std::mutex m_lock;
private:
maxbase::EMAverage m_response_time;
};
void server_free(Server* server);