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<?php
namespace Google\Protobuf\Benchmark;
ini_set('memory_limit', '4096M');
const NAME = "PhpBenchmark.php";
function _require_all($dir, &$prefix) {
// require all php files
foreach (glob("$dir/*") as $path) {
if (preg_match('/\.php$/', $path) &&
substr($path, -strlen(NAME)) != NAME) {
require_once(substr($path, strlen($prefix) + 1));
} elseif (is_dir($path)) {
_require_all($path, $prefix);
}
}
}
// include all file
foreach (explode(PATH_SEPARATOR, get_include_path()) as $one_include_path) {
_require_all($one_include_path, $one_include_path);
}
use Benchmarks\BenchmarkDataset;
class BenchmarkMethod
{
// $args[0]: dataset
// $args[1]: message class
static function parse(&$args) {
$payloads = $args[0]->getPayload();
for ($i = $payloads->count() - 1; $i >= 0; $i--) {
(new $args[1]())->mergeFromString($payloads->offsetGet($i));
}
}
// $args: array of message
static function serialize(&$args) {
foreach ($args as &$temp_message) {
$temp_message->serializeToString();
}
}
}
class Benchmark
{
private $benchmark_name;
private $args;
private $benchmark_time;
private $total_bytes;
private $coefficient;
public function __construct($benchmark_name, $args, $total_bytes,
$benchmark_time = 5.0) {
$this->args = $args;
$this->benchmark_name = $benchmark_name;
$this->benchmark_time = $benchmark_time;
$this->total_bytes = $total_bytes;
$this->coefficient = pow (10, 0) / pow(2, 20);
}
public function runBenchmark() {
$t = $this->runBenchmarkWithTimes(1);
$times = ceil($this->benchmark_time / $t);
return $this->total_bytes * $times /
($times == 1 ? $t : $this->runBenchmarkWithTimes($times)) *
$this->coefficient;
}
private function runBenchmarkWithTimes($times) {
$st = microtime(true);
for ($i = 0; $i < $times; $i++) {
call_user_func_array($this->benchmark_name, array(&$this->args));
}
$en = microtime(true);
return $en - $st;
}
}
function getMessageName(&$dataset) {
switch ($dataset->getMessageName()) {
case "benchmarks.proto3.GoogleMessage1":
return "\Benchmarks\Proto3\GoogleMessage1";
case "benchmarks.proto2.GoogleMessage1":
return "\Benchmarks\Proto2\GoogleMessage1";
case "benchmarks.proto2.GoogleMessage2":
return "\Benchmarks\Proto2\GoogleMessage2";
case "benchmarks.google_message3.GoogleMessage3":
return "\Benchmarks\Google_message3\GoogleMessage3";
case "benchmarks.google_message4.GoogleMessage4":
return "\Benchmarks\Google_message4\GoogleMessage4";
default:
exit("Message " . $dataset->getMessageName() . " not found !");
}
}
function runBenchmark($file, $behavior_prefix) {
$datafile = fopen($file, "r") or die("Unable to open file " . $file);
$bytes = fread($datafile, filesize($file));
$dataset = new BenchmarkDataset(NULL);
$dataset->mergeFromString($bytes);
$message_name = getMessageName($dataset);
$message_list = array();
$total_bytes = 0;
$payloads = $dataset->getPayload();
for ($i = $payloads->count() - 1; $i >= 0; $i--) {
$new_message = new $message_name();
$new_message->mergeFromString($payloads->offsetGet($i));
array_push($message_list, $new_message);
$total_bytes += strlen($payloads->offsetGet($i));
}
$parse_benchmark = new Benchmark(
"\Google\Protobuf\Benchmark\BenchmarkMethod::parse",
array($dataset, $message_name), $total_bytes);
$serialize_benchmark = new Benchmark(
"\Google\Protobuf\Benchmark\BenchmarkMethod::serialize",
$message_list, $total_bytes);
return array(
"filename" => $file,
"benchmarks" => array(
$behavior_prefix . "_parse" => $parse_benchmark->runBenchmark(),
$behavior_prefix . "_serailize" => $serialize_benchmark->runBenchmark()
),
"message_name" => $dataset->getMessageName()
);
}
// main
$json_output = false;
$results = array();
$behavior_prefix = "";
foreach ($argv as $index => $arg) {
if ($index == 0) {
continue;
}
if ($arg == "--json") {
$json_output = true;
} else if (strpos($arg, "--behavior_prefix") == 0) {
$behavior_prefix = str_replace("--behavior_prefix=", "", $arg);
}
}
foreach ($argv as $index => $arg) {
if ($index == 0) {
continue;
}
if (substr($arg, 0, 2) == "--") {
continue;
} else {
array_push($results, runBenchmark($arg, $behavior_prefix));
}
}
if ($json_output) {
print json_encode($results);
} else {
print "PHP protobuf benchmark result:\n\n";
foreach ($results as $result) {
printf("result for test data file: %s\n", $result["filename"]);
foreach ($result["benchmarks"] as $benchmark => $throughput) {
printf(" Throughput for benchmark %s: %.2f MB/s\n",
$benchmark, $throughput);
}
}
}
?>
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