diff --git a/core/lib/Drupal/Core/Lock/DatabaseLockBackend.php b/core/lib/Drupal/Core/Lock/DatabaseLockBackend.php
index d407843..75e469a 100644
--- a/core/lib/Drupal/Core/Lock/DatabaseLockBackend.php
+++ b/core/lib/Drupal/Core/Lock/DatabaseLockBackend.php
@@ -18,6 +18,7 @@ class DatabaseLockBackend extends LockBackendAbstract {
    * Implements Drupal\Core\Lock\LockBackedInterface::acquire().
    */
   public function acquire($name, $timeout = 30.0) {
+    reqlog('lock acquire start ' . $name);
     // Insure that the timeout is at least 1 ms.
     $timeout = max($timeout, 0.001);
     $expire = microtime(TRUE) + $timeout;
@@ -65,6 +66,7 @@ public function acquire($name, $timeout = 30.0) {
         // an expired lock.
       } while ($retry);
     }
+    reqlog('lock acquire end ' . $name . ': ' . isset($this->locks[$name]));
     return isset($this->locks[$name]);
   }
 
@@ -95,11 +97,13 @@ public function lockMayBeAvailable($name) {
    * Implements Drupal\Core\Lock\LockBackedInterface::release().
    */
   public function release($name) {
+    reqlog('lock release start: ' . $name);
     unset($this->locks[$name]);
     db_delete('semaphore')
       ->condition('name', $name)
       ->condition('value', $this->getLockId())
       ->execute();
+    reqlog('lock release end: ' . $name);
   }
 
   /**
@@ -115,10 +119,15 @@ public function releaseAll($lock_id = NULL) {
       ->execute();
   }
 
+  public function __construct() {
+    reqlog('lock construct ' .  $this->getLockId());
+  }
+
   /**
    * Releases pending locks.
    */
   public function __destruct() {
-    $this->releaseAll();
+    //$this->releaseAll()
+    reqlog('lock destruct ' .  $this->getLockId());
   }
 }
diff --git a/core/modules/simpletest/lib/Drupal/simpletest/TestBase.php b/core/modules/simpletest/lib/Drupal/simpletest/TestBase.php
index fdb819a..d02607d 100644
--- a/core/modules/simpletest/lib/Drupal/simpletest/TestBase.php
+++ b/core/modules/simpletest/lib/Drupal/simpletest/TestBase.php
@@ -691,6 +691,7 @@ public function run(array $methods = array()) {
             'function' => $class . '->' . $method . '()',
           );
           $completion_check_id = TestBase::insertAssert($this->testId, $class, FALSE, t('The test did not complete due to a fatal error.'), 'Completion check', $caller);
+          reqlog('simpletest start ' . $class . ':' . $method);
           $this->setUp();
           if ($this->setup) {
             try {
@@ -705,6 +706,7 @@ public function run(array $methods = array()) {
           else {
             $this->fail(t("The test cannot be executed because it has not been set up properly."));
           }
+          reqlog('simpletest end ' . $class . ':' . $method);
           // Remove the completion check record.
           TestBase::deleteAssert($completion_check_id);
         }
diff --git a/index.php b/index.php
index a6eb61e..ca31675 100644
--- a/index.php
+++ b/index.php
@@ -14,6 +14,12 @@
 use Drupal\Core\DrupalKernel;
 use Symfony\Component\HttpFoundation\Request;
 
+function reqlog($msg) {
+  error_log('[' . posix_getpid() . '] ' . $msg);
+}
+
+reqlog('request start');
+
 /**
  * Root directory of Drupal installation.
  */
@@ -35,3 +41,5 @@
 $response = $kernel->handle($request)->prepare($request)->send();
 
 $kernel->terminate($request, $response);
+
+reqlog('request terminate');