xhprof

Author: dxa59

php-xhprof-install.md

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+XHPROF
+======
+
+https://stojg.se/blog/2011-08-27-install-xhprof-for-php5-on-centos-ubuntu-and-debian
+
+Install graphviz:
+
+    # for centos (WORK)
+    sudo yum install graphviz
+    # for ubuntu and debian
+    sudo apt-get install graphviz
+
+Continue:
+
+    sudo pecl config-set preferred_state beta
+    sudo pecl install xhprof
+
+See error:
+
+    running: phpize
+    Cannot find config.m4.
+    Make sure that you run '/usr/bin/phpize' in the top level source directory of the module
+    
+    ERROR: `phpize' failed
+
+To fix bug:
+
+    # NOTE using 0.9.4 at work
+    wget http://pecl.php.net/get/xhprof-0.9.2.tgz
+    tar zxf xhprof-0.9.2.tgz
+    cd xhprof-0.9.2/extension
+    phpize
+    ./configure
+    make
+    sudo make install
+
+Enable it:
+
+    # for centos
+    sudo touch /etc/php.d/xhprof.ini
+    # for ubuntu and debian
+    sudo touch /etc/php5/conf.d/xhprof.ini
+
+Edit config file and write this:
+
+    [xhprof]
+    extension=xhprof.so
+    xhprof.output_dir="/tmp/xhprof"
+
+Restart apache:
+
+    # for centos
+    sudo /etc/init.d/httpd restart
+    # for ubuntu and debian
+    sudo /etc/init.d/apache2 restart
+
+Clone xhprof repo where you keep all your code:
+
+    git clone https://github.com/facebook/xhprof.git
+
+Put this sample code in your app's index.php; be careful to point $XHPROF_ROOT to the repo you clones:
+
+    <?php
+    xhprof_enable(XHPROF_FLAGS_CPU + XHPROF_FLAGS_MEMORY);
+    for ($i = 0; $i <= 1000; $i++) {
+        $a = $i * $i;
+    }
+
+    $xhprof_data = xhprof_disable();
+    $XHPROF_ROOT = "/data/xhprof/";
+    include_once $XHPROF_ROOT . "/xhprof_lib/utils/xhprof_lib.php";
+    include_once $XHPROF_ROOT . "/xhprof_lib/utils/xhprof_runs.php";
+
+    $xhprof_runs = new XHProfRuns_Default();
+    $run_id = $xhprof_runs->save_run($xhprof_data, "xhprof_testing");
+    echo "http://localhost/xhprof/xhprof_html/index.php?run={$run_id}&source=xhprof_testing\n";
+    exit();
+    ?>
+
+Create a symbolic link in your app code so that xhprof is accessible (alternatively, you could do a vhost, etc):
+
+    cd /webroot/public/yada-yada/
+    ln -s /path/to/xhprof/repo xhprof
+
+Now hit the app to generate an xhprof report and follow the link.