performance measurement class More...

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

Detailed Description

performance measurement class

Author: Alex Killing <Alex.Killing@gmx.de>

Version:

Id:: class.ilBenchmark.php 5860 2004-11-17 15:09:45Z hschottm

Definition at line 33 of file class.ilBenchmark.php.

Member Function Documentation

ilBenchmark::clearData ( )

delete all measurement data

Definition at line 61 of file class.ilBenchmark.php.

References $q.

        {
                global $ilDB;

                $q = "DELETE FROM benchmark";
                $ilDB->query($q);
        }

ilBenchmark::enable ( $ a_enable )

enable benchmarking

Definition at line 203 of file class.ilBenchmark.php.

References $ilias.

        {
                global $ilias;

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

ilBenchmark::getCurrentRecordNumber ( )

get current number of benchmark records

Definition at line 155 of file class.ilBenchmark.php.

References $q.

Referenced by save().

        {
                global $ilDB;

                $q = "SELECT COUNT(*) AS cnt FROM benchmark";
                $cnt_set = $ilDB->query($q);
                $cnt_rec = $cnt_set->fetchRow(DB_FETCHMODE_ASSOC);

                return $cnt_rec["cnt"];
        }

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ilBenchmark::getEvaluation ( $ a_module )

get performance evaluation data

Definition at line 130 of file class.ilBenchmark.php.

References $q.

        {
                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)." ".
                        " GROUP BY benchmark".
                        " ORDER BY benchmark";
                $bench_set = $ilDB->query($q);
                $eva = array();
                while($bench_rec = $bench_set->fetchRow(DB_FETCHMODE_ASSOC))
                {
                        $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 170 of file class.ilBenchmark.php.

References $ilias.

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 221 of file class.ilBenchmark.php.

References $q.

        {
                global $ilDB;

                $q = "SELECT DISTINCT module FROM benchmark";
                $mod_set = $ilDB->query($q);

                $modules = array();
                while ($mod_rec = $mod_set->fetchRow(DB_FETCHMODE_ASSOC))
                {
                        $modules[$mod_rec["module"]] = $mod_rec["module"];
                }

                return $modules;
        }

ilBenchmark::ilBenchmark ( )

constructor

Definition at line 39 of file class.ilBenchmark.php.

        {
        }

ilBenchmark::isEnabled ( )

check wether benchmarking is enabled or not

Definition at line 192 of file class.ilBenchmark.php.

References $ilias.

Referenced by save().

        {
                global $ilias;

                return (boolean) $ilias->getSetting("enable_bench");
        }

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ilBenchmark::microtimeDiff	(	$	t1,
		$	t2
	)

Definition at line 47 of file class.ilBenchmark.php.

Referenced by 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 98 of file class.ilBenchmark.php.

References $q, getCurrentRecordNumber(), getMaximumRecords(), and isEnabled().

        {
                global $ilDB;

                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)
                                {
                                        $q = "INSERT INTO benchmark (cdate, duration, module, benchmark) VALUES ".
                                                "(now(), ".$ilDB->quote($time).", ".$ilDB->quote($bench_module).", ".$ilDB->quote($benchmark).")";
                                        $ilDB->query($q);
                                }
                        }
                        $this->bench = array();
                }
        }

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ilBenchmark::setMaximumRecords ( $ a_max )

set maximum number of benchmark records

Definition at line 181 of file class.ilBenchmark.php.

References $ilias.

        {
                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 77 of file class.ilBenchmark.php.

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

ilBenchmark::stop	(	$	a_module,
		$	a_bench
	)

stop measurement

Parameters:

int

$mid measurement id

Definition at line 88 of file class.ilBenchmark.php.

References microtimeDiff().

        {
                $this->bench[$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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The documentation for this class was generated from the following file:

classes/class.ilBenchmark.php

ilBenchmark Class Reference

Public Member Functions

Detailed Description

Member Function Documentation