add php benchmark

2 files changed, 182 insertions, 0 deletions

diff --git a/benchmarks/php/PhpBenchmark.php b/benchmarks/php/PhpBenchmark.php
new file mode 100644
index 00000000..058940d1
--- /dev/null
+++ b/benchmarks/php/PhpBenchmark.php
@@ -0,0 +1,157 @@
+<?php
+
+namespace Google\Protobuf\Benchmark;
+
+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 /
+        $this->runBenchmarkWithTimes($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) {
+    $datafile = fopen($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(
+            "parse_php" => $parse_benchmark->runBenchmark(),
+            "serailize_php" => $serialize_benchmark->runBenchmark()
+        ),
+        "message_name" => $dataset->getMessageName()
+    );
+}
+
+// main
+$json_output = false;
+$results = array();
+foreach ($argv as $index => $arg) {
+    if ($index == 0) {
+        continue;
+    }
+    if ($arg == "--json") {
+        $json_output = true;
+        continue;
+    } else {
+        array_push($results, runBenchmark($arg));
+    }
+}
+
+if ($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, $throughput);
+        }
+    }
+}
+
+?>
diff --git a/benchmarks/php/autoload.php b/benchmarks/php/autoload.php
new file mode 100644
index 00000000..52a8741f
--- /dev/null
+++ b/benchmarks/php/autoload.php
@@ -0,0 +1,25 @@
+<?php
+
+define("GOOGLE_INTERNAL_NAMESPACE", "Google\\Protobuf\\Internal\\");
+define("GOOGLE_NAMESPACE", "Google\\Protobuf\\");
+define("GOOGLE_GPBMETADATA_NAMESPACE", "GPBMetadata\\Google\\Protobuf\\");
+define("BENCHMARK_NAMESPACE", "Benchmarks");
+define("BENCHMARK_GPBMETADATA_NAMESPACE", "GPBMetadata\\Benchmarks");
+
+function protobuf_autoloader_impl($class, $prefix, $include_path) {
+    $length = strlen($prefix);
+    if ((substr($class, 0, $length) === $prefix)) {
+        $path = $include_path . '/' . implode('/', array_map('ucwords', explode('\\', $class))) . '.php';
+        include_once $path;
+    }
+}
+
+function protobuf_autoloader($class) {
+    protobuf_autoloader_impl($class, GOOGLE_INTERNAL_NAMESPACE, getenv('PROTOBUF_PHP_SRCDIR'));
+    protobuf_autoloader_impl($class, GOOGLE_NAMESPACE, getenv('PROTOBUF_PHP_SRCDIR'));
+    protobuf_autoloader_impl($class, GOOGLE_GPBMETADATA_NAMESPACE, getenv('PROTOBUF_PHP_SRCDIR'));
+    protobuf_autoloader_impl($class, BENCHMARK_NAMESPACE, getenv('CURRENT_DIR'));
+    protobuf_autoloader_impl($class, BENCHMARK_GPBMETADATA_NAMESPACE, getenv('CURRENT_DIR'));
+}
+
+spl_autoload_register('protobuf_autoloader');