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Merged
merged 5 commits into from
May 10, 2019
Merged

Detect CPU model and MHz two ways #12

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9f263c2
Detect CPU model and MHz two ways
sergey-dryabzhinsky May 10, 2019
f2022e1
Fix command call
sergey-dryabzhinsky May 10, 2019
8a858ad
Try to detect RPi CPU trottling
sergey-dryabzhinsky May 10, 2019
371a420
Fix again taskset command call
sergey-dryabzhinsky May 10, 2019
f5cb8c8
Update README
sergey-dryabzhinsky May 10, 2019
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4 changes: 4 additions & 0 deletions README.md
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Original file line number Diff line number Diff line change
Expand Up @@ -79,6 +79,10 @@ env PHP_MEMORY_LIMIT=64 PHP_TIME_LIMIT=30 php bench.php

## ChangeLog

@ 2019-05-10, v1.0.34

* Поправлено определение модели CPU и частота в MHz для процессоров ARM.

@ 2019-05-01, v1.0.33

* Новый тест для классов - доступ в данным через публичные свойства,
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87 changes: 79 additions & 8 deletions bench.php
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Expand Up @@ -9,16 +9,16 @@
# Company : Code24 BV, The Netherlands #
# Author : Sergey Dryabzhinsky #
# Company : Rusoft Ltd, Russia #
# Date : MAy 01, 2019 #
# Version : 1.0.33 #
# Date : May 10, 2019 #
# Version : 1.0.34 #
# License : Creative Commons CC-BY license #
# Website : https://github.com/rusoft/php-simple-benchmark-script #
# Website : https://git.rusoft.ru/open-source/php-simple-benchmark-script #
# #
################################################################################
*/

$scriptVersion = '1.0.33';
$scriptVersion = '1.0.34';

ini_set('display_errors', 0);
ini_set('error_log', null);
Expand Down Expand Up @@ -272,6 +272,10 @@
// Special for nginx
header('X-Accel-Buffering: no');

if (file_exists('/usr/bin/taskset')) {
shell_exec('/usr/bin/taskset -c -p 0 ' . getmypid());
}

/** ------------------------------- Main Constants ------------------------------- */

$line = str_pad("-", 91, "-");
Expand Down Expand Up @@ -502,13 +506,17 @@ function getCpuInfo($fireUpCpu = false)
{
$cpu = array(
'model' => '',
'vendor' => '',
'cores' => 0,
'mhz' => 0.0,
'max-mhz' => 0.0,
'min-mhz' => 0.0,
'mips' => 0.0
);

if (!is_readable('/proc/cpuinfo')) {
$cpu['model'] = 'Unknown';
$cpu['vendor'] = 'Unknown';
$cpu['cores'] = 1;
return $cpu;
}
Expand All @@ -518,6 +526,9 @@ function getCpuInfo($fireUpCpu = false)
$i = 30000000;
while ($i--) ;
}
if (file_exists('/sys/devices/system/cpu/cpu0/cpufreq/scaling_cur_freq')) {
$cpu['mhz'] = ((int)file_get_contents('/sys/devices/system/cpu/cpu0/cpufreq/scaling_cur_freq'))/1000.0;
}

// Code from https://github.com/jrgp/linfo/blob/master/src/Linfo/OS/Linux.php
// Adopted
Expand Down Expand Up @@ -553,7 +564,8 @@ function getCpuInfo($fireUpCpu = false)
$cpu['mhz'] = (int)hexdec($value) / 1000000.0;
}
break;
case 'bogomips': // twice of MHz usualy
case 'bogomips': // twice of MHz usualy on Intel/Amd
case 'BogoMIPS': // twice of MHz usualy on Intel/Amd
if (empty($cpu['mhz'])) {
$cpu['mhz'] = (float)$value / 2.0;
}
Expand All @@ -570,6 +582,57 @@ function getCpuInfo($fireUpCpu = false)
}
}

// Raspberry Pi or other ARM board etc.
$cpuData = explode("\n", shell_exec('lscpu'));
foreach ($cpuData as $line) {
$line = explode(':', $line, 2);

if (!array_key_exists(1, $line)) {
continue;
}

$key = trim($line[0]);
$value = trim($line[1]);

// What we want are bogomips, MHz, processor, and Model.
switch ($key) {
// CPU model
case 'Model name':
if (empty($cpu['model'])) {
$cpu['model'] = $value;
}
break;
// cores
case 'CPU(s)':
if (empty($cpu['cores'])) {
$cpu['cores'] = (int)$value;
}
break;
// MHz
case 'CPU max MHz':
if (empty($cpu['max-mhz'])) {
$cpu['max-mhz'] = (int)$value;
}
break;
case 'CPU min MHz':
if (empty($cpu['min-mhz'])) {
$cpu['min-mhz'] = (int)$value;
}
break;
// vendor
case 'Vendor ID':
if (empty($cpu['vendor'])) {
$cpu['vendor'] = $value;
}
break;
}
}

if ($cpu['vendor'] == 'ARM') {
// Unusable
$cpu['mips'] = 0;
}

return $cpu;
}

Expand Down Expand Up @@ -654,10 +717,18 @@ function mymemory_usage()

$cpuInfo = getCpuInfo();
// CPU throttling?
if (abs($cpuInfo['mips'] - $cpuInfo['mhz']) > 300) {
print("<pre>\n<<< WARNING >>>\nCPU is in powersaving mode? Set CPU governor to 'performance'!\n Fire up CPU and recalculate MHz!\n</pre>" . PHP_EOL);
// TIME WASTED HERE
$cpuInfo = getCpuInfo(true);
if ($cpuInfo['mips'] && $cpuInfo['mhz']) {
if (abs($cpuInfo['mips'] - $cpuInfo['mhz']) > 300) {
print("<pre>\n<<< WARNING >>>\nCPU is in powersaving mode? Set CPU governor to 'performance'!\n Fire up CPU and recalculate MHz!\n</pre>" . PHP_EOL);
// TIME WASTED HERE
$cpuInfo = getCpuInfo(true);
}
} else if ($cpuInfo['max-mhz'] && $cpuInfo['mhz']) {
if (abs($cpuInfo['max-mhz'] - $cpuInfo['mhz']) > 300) {
print("<pre>\n<<< WARNING >>>\nCPU is in powersaving mode? Set CPU governor to 'performance'!\n Fire up CPU and recalculate MHz!\n</pre>" . PHP_EOL);
// TIME WASTED HERE
$cpuInfo = getCpuInfo(true);
}
}

$memoryLimit = min(getPhpMemoryLimitBytes(), getSystemMemoryFreeLimitBytes());
Expand Down