diff --git a/fork.php b/fork.php
index 2c45f23..3d48089 100644
--- a/fork.php
+++ b/fork.php
@@ -14,6 +14,7 @@ class fork
     if (! function_exists ("pcntl_fork"))
       throw new \Exception ("Can't fork as PHP doesn't have the pcntl_fork",
         500);
+    declare (ticks=1);
   }
 
   /** Return the number of active PID
@@ -59,11 +60,12 @@ class fork
     * messages from the child are silently dropped.
     * If some parameters are provided, the called child method will receive them
     * This function fork and return the child PID
+    * @param string $name The name displayed in the processus list
     * @param callable $callable The callback method to use in child
     * @param mixed|null $params The params to provide to child method
     * @return The child PID
     */
-  public function startDetachedChild ($callable, $params = array ())
+  public function startDetachedChild ($name, $callable, $params = array ())
   {
     $pid = pcntl_fork ();
     if ($pid === -1)
@@ -85,6 +87,9 @@ class fork
     fclose (STDIN);
     fclose (STDOUT);
     fclose (STDERR);
+    if (function_exists ("cli_set_process_title"))
+      cli_set_process_title ($name);
+
     $args = func_get_args ();
     unset ($args[0]);
     call_user_func_array ($callable, $args);
@@ -119,6 +124,9 @@ class fork
     */
   public function stopChild ($pid, $maxWait = null)
   {
+    if (! key_exists ($pid, $this->pidList))
+      throw new \Exception ("Can't stop pid '$pid' : not in the fork list",
+        500);
     return $this->sendSignalToChild (SIGTERM, $pid, $maxWait);
   }
 
@@ -133,6 +141,9 @@ class fork
     */
   public function killChild ($pid, $maxWait = null)
   {
+    if (! key_exists ($pid, $this->pidList))
+      throw new \Exception ("Can't kill pid '$pid' : not in the fork list",
+        500);
     return $this->sendSignalToChild (SIGKILL, $pid, $maxWait);
   }
 
@@ -148,10 +159,7 @@ class fork
     */
   private function sendSignalToChild ($signal, $pid, $maxWait = null)
   {
-    if (! key_exists ($pid, $this->pidList))
-      throw new \Exception ("Can't stop/kill pid '$pid' : not in the fork list",
-        500);
-    posix_kill ($pid, SIGKILL);
+    posix_kill ($pid, $signal);
     if ($maxWait !== null)
     {
       $startWait = time ();