Online PHP editor | perf for 8QZcN

@ 2015-04-15T14:54:52Z

<?php
ini_set('hhvm.enable_zend_sorting', 0);

function timed($return=false){
    global $timestart;
    if (!isset($timestart)){$timestart=getmicrotime();return;}
    static $time1;
    $time2=getmicrotime();
    if (!$time1)$time1=$timestart;
    $diff=($time2-$time1);
    $time1=$time2;
    if ($return)return $diff;
    echo "<BR>".$diff.'<BR>';
}
function getmicrotime(){
    list($usec, $sec) = explode(" ", microtime());
    return ((float)$usec + (float)$sec);
}


define("thisIsVeryBigKeyName0",0);
define("thisIsVeryBigKeyName1",1);
$arraysize=1000;
$interate=100;

$a=array();
timed();
for ($n=0;$n<$arraysize;$n++){
    $a[]=array("thisIsVeryBigKeyName0"=>0,"thisIsVeryBigKeyName1"=>1);
}
for ($n=0;$n<$interate;$n++){
    foreach ($a as $a2){
        $test=$a2["thisIsVeryBigKeyName0"].$a2["thisIsVeryBigKeyName1"];
    }
}
echo "assoc name: time ".timed(1)." usage ".memory_get_usage()." peakusage ".memory_get_peak_usage()."<BR>\n";
unset ($a);
timed(1);

$a=array();
for ($n=0;$n<$arraysize;$n++){
    $a[]=array(thisIsVeryBigKeyName0=>0,thisIsVeryBigKeyName1=>1);
}
for ($n=0;$n<$interate;$n++){
    foreach ($a as $a2){
        $test=$a2[thisIsVeryBigKeyName0].$a2[thisIsVeryBigKeyName1];
    }
}
echo "define    : time ".timed(1)." usage ".memory_get_usage()." peakusage ".memory_get_peak_usage()."<BR>\n";
unset($a);
timed(1);

$a=array();
for ($n=0;$n<$arraysize;$n++){
    $a[]=array(0=>0,1=>1);
}
for ($n=0;$n<$interate;$n++){
    foreach ($a as $a2){
        $test=$a2[0].$a2[1];
    }
}
echo "numeric   : time ".timed(1)." usage ".memory_get_usage()." peakusage ".memory_get_peak_usage()."<BR>\n";
unset($a);
timed(1);

$a=array();
for ($n=0;$n<$arraysize;$n++){
    $a[]=array(0,1);
}
for ($n=0;$n<$interate;$n++){
    foreach ($a as $a2){
        $test=$a2[0].$a2[1];
    }
}
echo "not assoc : time ".timed(1)." usage ".memory_get_usage()." peakusage ".memory_get_peak_usage()."<BR>\n";
unset($a);
timed(1);

$a=new SplFixedArray($arraysize);
for ($n=0;$n<$arraysize;$n++){
    $a[$n]=array(0,1);
}
for ($n=0;$n<$interate;$n++){
    foreach ($a as $a2){
        $test=$a2[0].$a2[1];
    }
}
echo "spl+array : time ".timed(1)." usage ".memory_get_usage()." peakusage ".memory_get_peak_usage()."<BR>\n";
unset($a);
timed(1);

$a=new SplFixedArray($arraysize);
for ($n=0;$n<$arraysize;$n++){
    $b=new SplFixedArray(2);
    $b[0]=0;$b[1]=1;
    $a[$n]=$b;
}
for ($n=0;$n<$interate;$n++){
    foreach ($a as $a2){
        $test=$a2[0].$a2[1];
    }
}
echo "spl only  : time ".timed(1)." usage ".memory_get_usage()." peakusage ".memory_get_peak_usage()."<BR>\n";
unset($a);
timed(1);

$a=new SplFixedArray($arraysize);
for ($n=0;$n<$arraysize;$n++){
    $b=new SplFixedArray(2);
    $b[thisIsVeryBigKeyName0]=0;$b[thisIsVeryBigKeyName1]=1;
    $a[$n]=$b;
}
for ($n=0;$n<$interate;$n++){
    foreach ($a as $a2){
        $test=$a2[thisIsVeryBigKeyName0].$a2[thisIsVeryBigKeyName1];
    }
}
echo "spl define: time ".timed(1)." usage ".memory_get_usage()." peakusage ".memory_get_peak_usage()."<BR>\n";
unset($a);
timed(1);
?>

Here you find the average performance (time & memory) of each version. A grayed out version indicates it didn't complete successfully (based on exit-code).

Version	System time (s)	User time (s)	Memory (MiB)
7.1.7	0.003	0.087	17.21
7.1.6	0.013	0.121	19.46
7.1.5	0.007	0.131	16.72
7.1.0	0.000	0.180	22.34
7.0.20	0.000	0.095	16.72
7.0.14	0.000	0.103	22.09
7.0.10	0.007	0.167	20.61
7.0.9	0.010	0.167	20.53
7.0.8	0.003	0.173	20.46
7.0.7	0.013	0.157	20.53
7.0.6	0.010	0.167	20.58
7.0.5	0.060	0.150	20.95
7.0.4	0.007	0.167	20.13
7.0.3	0.003	0.157	20.04
7.0.2	0.003	0.117	20.04
7.0.1	0.003	0.113	20.03
7.0.0	0.003	0.123	20.03
5.6.28	0.010	0.280	21.71
5.6.25	0.013	0.237	21.22
5.6.24	0.010	0.247	21.30
5.6.23	0.007	0.260	21.22
5.6.22	0.007	0.273	21.37
5.6.21	0.017	0.237	21.30
5.6.20	0.010	0.263	21.57
5.6.19	0.017	0.240	21.57
5.6.18	0.000	0.230	21.66
5.6.17	0.007	0.190	21.68
5.6.16	0.003	0.213	22.02
5.6.15	0.010	0.257	21.80
5.6.14	0.007	0.223	21.65
5.6.13	0.007	0.217	21.68
5.6.12	0.003	0.197	21.65
5.6.11	0.007	0.187	21.67
5.6.10	0.003	0.190	21.71
5.6.9	0.010	0.190	21.73
5.6.8	0.013	0.240	21.13
5.6.7	0.007	0.250	21.04
5.6.6	0.010	0.227	20.96
5.6.5	0.013	0.160	21.13
5.6.4	0.013	0.240	21.05
5.6.3	0.003	0.267	21.04
5.6.2	0.010	0.233	21.00
5.6.1	0.013	0.250	21.03
5.6.0	0.000	0.237	21.00
5.5.38	0.003	0.273	20.99
5.5.37	0.007	0.243	20.98
5.5.36	0.003	0.233	21.02
5.5.35	0.007	0.243	21.04
5.5.34	0.003	0.250	21.27
5.5.33	0.010	0.237	21.47
5.5.32	0.007	0.250	21.52
5.5.31	0.013	0.237	21.55
5.5.30	0.003	0.220	21.46
5.5.29	0.003	0.237	21.49
5.5.28	0.000	0.193	21.52
5.5.27	0.003	0.207	21.52
5.5.26	0.003	0.190	21.50
5.5.25	0.003	0.187	21.34
5.5.24	0.017	0.237	20.75
5.5.23	0.010	0.240	20.74
5.5.22	0.010	0.267	20.83
5.5.21	0.007	0.270	20.64
5.5.20	0.013	0.230	20.89
5.5.19	0.000	0.263	20.81
5.5.18	0.013	0.233	20.86
5.5.16	0.013	0.263	20.85
5.5.15	0.010	0.267	20.85
5.5.14	0.010	0.260	20.75
5.5.13	0.007	0.217	20.71
5.5.12	0.013	0.233	20.81
5.5.11	0.010	0.263	20.82
5.5.10	0.017	0.243	20.70
5.5.9	0.007	0.240	20.70
5.5.8	0.007	0.257	20.74
5.5.7	0.010	0.260	20.66
5.5.6	0.013	0.223	20.79
5.5.5	0.003	0.267	20.79
5.5.4	0.003	0.253	20.72
5.5.3	0.010	0.257	20.72
5.5.2	0.007	0.247	20.72
5.5.1	0.013	0.223	20.77
5.5.0	0.010	0.247	20.75
5.4.45	0.003	0.200	19.93
5.4.44	0.007	0.190	19.92
5.4.43	0.000	0.187	19.82
5.4.42	0.010	0.187	20.10
5.4.41	0.007	0.227	19.83
5.4.40	0.013	0.257	19.47
5.4.39	0.000	0.243	19.74
5.4.38	0.017	0.250	19.66
5.4.37	0.013	0.227	19.46
5.4.36	0.010	0.237	19.44
5.4.35	0.000	0.267	19.68
5.4.34	0.020	0.233	19.45
5.4.32	0.010	0.233	19.60
5.4.31	0.007	0.247	19.59
5.4.30	0.010	0.243	19.58
5.4.29	0.003	0.243	19.78
5.4.28	0.013	0.247	19.68
5.4.27	0.003	0.243	19.61
5.4.26	0.010	0.217	19.63
5.4.25	0.007	0.237	19.58
5.4.24	0.020	0.237	19.66
5.4.23	0.010	0.247	19.61
5.4.22	0.003	0.267	19.45
5.4.21	0.010	0.267	19.59
5.4.20	0.003	0.233	19.61
5.4.19	0.007	0.227	19.50
5.4.18	0.007	0.257	19.57
5.4.17	0.000	0.260	19.62
5.4.16	0.007	0.257	19.44
5.4.15	0.000	0.243	19.57
5.4.14	0.010	0.263	17.00
5.4.13	0.013	0.223	16.85
5.4.12	0.007	0.230	17.04
5.4.11	0.013	0.227	16.92
5.4.10	0.010	0.240	16.99
5.4.9	0.007	0.227	17.08
5.4.8	0.020	0.230	16.89
5.4.7	0.007	0.240	16.91
5.4.6	0.010	0.250	17.09
5.4.5	0.000	0.267	16.98
5.4.4	0.013	0.247	17.03
5.4.3	0.013	0.223	16.89
5.4.2	0.010	0.240	17.08
5.4.1	0.007	0.253	16.93
5.4.0	0.010	0.240	16.55

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