performance measurement class More...

Collaboration diagram for ilBenchmark:

Public Member Functions
	ilBenchmark ()
	constructor
	microtimeDiff ($t1, $t2)
	clearData ()
	delete all measurement data
	start ($a_module, $a_bench)
	start measurement
	stop ($a_module, $a_bench)
	stop measurement
	save ()
	save all measurements
	getEvaluation ($a_module)
	get performance evaluation data
	getCurrentRecordNumber ()
	get current number of benchmark records
	getMaximumRecords ()
	get maximum number of benchmark records
	setMaximumRecords ($a_max)
	set maximum number of benchmark records
	isEnabled ()
	check wether benchmarking is enabled or not
	enable ($a_enable)
	enable benchmarking
	getMeasuredModules ()
	get all current measured modules
	getMeasuredTime ($a_module, $a_bench)
	Get measurement.
	isDbBenchEnabled ()
	Check wether benchmarking is enabled or not.
	enableDbBench ($a_enable, $a_user=0)
	Enable DB benchmarking.
	startDbBench ($a_sql)
	start measurement
	stopDbBench ()
	stop measurement
	getDbBenchRecords ()
	Get db benchmark records.

Data Fields
	$bench = array()

Detailed Description

performance measurement class

Author: Alex Killing Alex..nosp@m.Kill.nosp@m.ing@g.nosp@m.mx.d.nosp@m.e

Version

Id:: class.ilBenchmark.php 25692 2010-09-15 09:44:16Z mwarkus

Definition at line 12 of file class.ilBenchmark.php.

Member Function Documentation

ilBenchmark::clearData ( )

delete all measurement data

Definition at line 41 of file class.ilBenchmark.php.

References $ilDB.

        {
                global $ilDB;
                $q = "DELETE FROM benchmark";
                $ilDB->manipulate($q);
        }

ilBenchmark::enable ( $a_enable )

enable benchmarking

Definition at line 221 of file class.ilBenchmark.php.

        {
                global $ilias;
                if ($a_enable)
                {
                        $ilias->setSetting("enable_bench", 1);
                }
                else
                {
                        $ilias->setSetting("enable_bench", 0);
                }
        }

ilBenchmark::enableDbBench	(	$a_enable,
		$a_user = `0`
	)

Enable DB benchmarking.

Parameters

boolean	enable db benchmarking
string	user account name that should be benchmarked

Definition at line 305 of file class.ilBenchmark.php.

Referenced by save().

        {
                global $ilias;
                if ($a_enable)
                {
                        $ilias->setSetting("enable_db_bench", 1);
                        if ($a_user !== 0)
                        {
                                $ilias->setSetting("db_bench_user", $a_user);
                        }
                }
                else
                {
                        $ilias->setSetting("enable_db_bench", 0);
                        if ($a_user !== 0)
                        {
                                $ilias->setSetting("db_bench_user", $a_user);
                        }
                }
        }

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ilBenchmark::getCurrentRecordNumber ( )

get current number of benchmark records

Definition at line 168 of file class.ilBenchmark.php.

References $ilDB.

Referenced by save().

        {
                global $ilDB;
                $q = "SELECT COUNT(*) AS cnt FROM benchmark";
                $cnt_set = $ilDB->query($q);
                $cnt_rec = $ilDB->fetchAssoc($cnt_set);
                return $cnt_rec["cnt"];
        }

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ilBenchmark::getDbBenchRecords ( )

Get db benchmark records.

Parameters

@return

Definition at line 373 of file class.ilBenchmark.php.

References $ilDB.

        {
                global $ilDB;
                $set = $ilDB->query("SELECT * FROM benchmark");
                $b = array();
                while ($rec = $ilDB->fetchAssoc($set))
                {
                        $b[] = array("sql" => $rec["sql_stmt"],
                                "time" => $rec["duration"]);
                }
                return $b;
        }

ilBenchmark::getEvaluation ( $a_module )

get performance evaluation data

Definition at line 143 of file class.ilBenchmark.php.

References $ilDB.

        {
                global $ilDB;
                $q = "SELECT COUNT(*) AS cnt, AVG(duration) AS avg_dur, benchmark,".
                        " MIN(duration) AS min_dur, MAX(duration) AS max_dur".
                        " FROM benchmark".
                        " WHERE module = ".$ilDB->quote($a_module, "text")." ".
                        " GROUP BY benchmark".
                        " ORDER BY benchmark";
                $bench_set = $ilDB->query($q);
                $eva = array();
                while($bench_rec = $ilDB->fetchAssoc($bench_set))
                {
                        $eva[] = array("benchmark" => $bench_rec["benchmark"],
                                "cnt" => $bench_rec["cnt"], "duration" => $bench_rec["avg_dur"],
                                "min" => $bench_rec["min_dur"], "max" => $bench_rec["max_dur"]);
                }
                return $eva;
        }

ilBenchmark::getMaximumRecords ( )

get maximum number of benchmark records

Definition at line 183 of file class.ilBenchmark.php.

Referenced by save().

        {
                global $ilias;
                return $ilias->getSetting("bench_max_records");
        }

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ilBenchmark::getMeasuredModules ( )

get all current measured modules

Definition at line 239 of file class.ilBenchmark.php.

References $ilDB.

        {
                global $ilDB;
                $q = "SELECT DISTINCT module FROM benchmark";
                $mod_set = $ilDB->query($q);
                $modules = array();
                while ($mod_rec = $ilDB->fetchAssoc($mod_set))
                {
                        $modules[$mod_rec["module"]] = $mod_rec["module"];
                }
                return $modules;
        }

ilBenchmark::getMeasuredTime	(	$a_module,
		$a_bench
	)

Get measurement.

Returns: Measurement in milliseconds.

Definition at line 261 of file class.ilBenchmark.php.

        {
                if (isset($this->bench[$a_module.":".$a_bench]))
                {
                        return $this->bench[$a_module.":".$a_bench][count($this->bench[$a_module.":".$a_bench]) - 1];
                }
                return false;
        }

ilBenchmark::ilBenchmark ( )

constructor

Definition at line 19 of file class.ilBenchmark.php.

{

}

ilBenchmark::isDbBenchEnabled ( )

Check wether benchmarking is enabled or not.

Definition at line 280 of file class.ilBenchmark.php.

References $ilSetting.

Referenced by save(), startDbBench(), and stopDbBench().

        {
                global $ilSetting;
                if (isset($this->db_enabled))
                {
                        return $this->db_enabled;
                }
                if (!is_object($ilSetting))
                {
                        return false;
                }
                $this->db_enabled = $ilSetting->get("enable_db_bench");
                $this->db_enabled_user = $ilSetting->get("db_bench_user");
                return $this->db_enabled;
        }

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ilBenchmark::isEnabled ( )

check wether benchmarking is enabled or not

Definition at line 205 of file class.ilBenchmark.php.

References $ilSetting.

Referenced by save(), start(), and stop().

        {
                global $ilSetting;
                if (!is_object($ilSetting))
                {
                        return true;
                }
                return (boolean) $ilSetting->get("enable_bench");
        }

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ilBenchmark::microtimeDiff	(	$t1,
		$t2
	)

Definition at line 27 of file class.ilBenchmark.php.

References $diff.

Referenced by save(), and stop().

        {
                $t1 = explode(" ",$t1);
                $t2 = explode(" ",$t2);
                $diff = $t2[0] - $t1[0] + $t2[1] - $t1[1];
                return $diff;
        }

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ilBenchmark::save ( )

save all measurements

Definition at line 86 of file class.ilBenchmark.php.

References $bench, $benchmark, $ilDB, enableDbBench(), getCurrentRecordNumber(), getMaximumRecords(), isDbBenchEnabled(), isEnabled(), and microtimeDiff().

        {
                global $ilDB, $ilUser;
                if ($this->isDbBenchEnabled() && is_object($ilUser) &&
                        $this->db_enabled_user == $ilUser->getLogin())
                {
                        if (is_array($this->db_bench) && is_object($ilDB))
                        {
                                $this->db_bench_stop_rec = true;
                                $ilDB->manipulate("DELETE FROM benchmark");
                                foreach ($this->db_bench as $b)
                                {
                                        $ilDB->insert("benchmark", array(
                                                "duration" => array("float", $this->microtimeDiff($b["start"], $b["stop"])),
                                                "sql_stmt" => array("clob", $b["sql"])
                                        ));
                                }
                        }
                        $this->enableDbBench(false);
                }
return;
                if ($this->isEnabled() &&
                        ($this->getMaximumRecords() > $this->getCurrentRecordNumber()))
                {
                        foreach($this->bench as $key => $bench)
                        {
                                $bench_arr = explode(":", $key);
                                $bench_module = $bench_arr[0];
                                $benchmark = $bench_arr[1];
                                foreach($bench as $time)
                                {
                                        $q = "INSERT INTO benchmark (cdate, duration, module, benchmark) VALUES ".
                                                "(".
                                                $ilDB->now().", ".
                                                $ilDB->quote($time, "float").", ".
                                                $ilDB->quote($bench_module, "text").", ".
                                                $ilDB->quote($benchmark, "text").")";
                                        $ilDB->manipulate($q);
                                }
                        }
                        $this->bench = array();
                }
        }

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ilBenchmark::setMaximumRecords ( $a_max )

set maximum number of benchmark records

Definition at line 194 of file class.ilBenchmark.php.

        {
                global $ilias;
                $ilias->setSetting("bench_max_records", (int) $a_max);
        }

ilBenchmark::start	(	$a_module,
		$a_bench
	)

start measurement

Parameters

string $type measurement type

Returns: int measurement id

Definition at line 57 of file class.ilBenchmark.php.

References isEnabled().

Referenced by startDbBench(), and stopDbBench().

        {
return;
                if ($this->isEnabled())
                {
                        $this->bench[$a_module.":".$a_bench][] = microtime();
                }
        }

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ilBenchmark::startDbBench ( $a_sql )

start measurement

Parameters

string $type measurement type

Returns: int measurement id

Definition at line 334 of file class.ilBenchmark.php.

References isDbBenchEnabled(), and start().

        {
                global $ilUser;
                if ($this->isDbBenchEnabled() && is_object($ilUser) &&
                        $this->db_enabled_user == $ilUser->getLogin() &&
                        !$this->db_bench_stop_rec)
                {
                        $this->start = microtime();
                        $this->sql = $a_sql;
                }
        }

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ilBenchmark::stop	(	$a_module,
		$a_bench
	)

stop measurement

Parameters

int $mid measurement id

Definition at line 72 of file class.ilBenchmark.php.

References isEnabled(), and microtimeDiff().

        {
return;
                if ($this->isEnabled())
                {
                        $this->bench[$a_module.":".$a_bench][count($this->bench[$a_module.":".$a_bench]) - 1]
                                = $this->microtimeDiff($this->bench[$a_module.":".$a_bench][count($this->bench[$a_module.":".$a_bench]) - 1], microtime());
                }
        }

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ilBenchmark::stopDbBench ( )

stop measurement

Parameters

int $mid measurement id

Definition at line 353 of file class.ilBenchmark.php.

References isDbBenchEnabled(), and start().

        {
                global $ilUser;
                if ($this->isDbBenchEnabled() && is_object($ilUser) &&
                        $this->db_enabled_user == $ilUser->getLogin() &&
                        !$this->db_bench_stop_rec)
                {
                        $this->db_bench[] =
                                array("start" => $this->start, "stop" => microtime(),
                                        "sql" => $this->sql);
                }
        }

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Field Documentation

ilBenchmark::$bench = array()

Definition at line 14 of file class.ilBenchmark.php.

Referenced by save().

The documentation for this class was generated from the following file:

classes/class.ilBenchmark.php

Public Member Functions

Data Fields

Detailed Description

Member Function Documentation

Field Documentation