diff --git a/lib/Gearman/Slot.pm b/lib/Gearman/Slot.pm
index 3cb1b76..52d6b72 100644
--- a/lib/Gearman/Slot.pm
+++ b/lib/Gearman/Slot.pm
@@ -11,9 +11,7 @@ use Any::Moose;
 use AnyEvent;
 use Gearman::SlotWorker;
 use Scalar::Util qw(weaken);
-use UUID::Random;
 use Data::Dumper;
-use POSIX;
 
 has libs=>(is=>'rw',isa=>'ArrayRef',default=>sub{[]});
 has job_servers=>(is=>'rw',isa=>'ArrayRef',required=>1);
@@ -47,13 +45,12 @@ sub stop{
     my $self = shift;
     $self->is_stopped(1);
     if( $self->worker_pid ){
-        kill SIGINT, $self->worker_pid;
+        kill 2, $self->worker_pid;
     }
 }
 
 sub start{
     my $self = shift;
-    $self->is_stopped(0);
     
     my $cpid = fork();
     if( $cpid ){
@@ -70,6 +67,7 @@ sub start{
                 $self->worker_watcher(undef);
             }
         });
+        $self->is_stopped(0);
         weaken($self);
     }
     else{
@@ -97,7 +95,7 @@ sub DEMOLISH{
     my $self = shift;
     if( $self->worker_pid ){
         DEBUG 'killed child forcely';
-        kill SIGKILL, $self->worker_pid;
+        kill 9, $self->worker_pid;
     }
 }
 
diff --git a/lib/Gearman/SlotManager.pm b/lib/Gearman/SlotManager.pm
index a7ddd17..da84bf6 100644
--- a/lib/Gearman/SlotManager.pm
+++ b/lib/Gearman/SlotManager.pm
@@ -157,3 +157,14 @@ sub DEMOLISH{
 
 __PACKAGE__->meta->make_immutable;
 1;
+__END__
+
+=pod
+
+=head1 SYNOPSIS
+
+Will be updated soon.
+
+See testManager.pl in Gearman::SlotManager directory.
+
+=cut
diff --git a/lib/Gearman/SlotWorker.pm b/lib/Gearman/SlotWorker.pm
index f43c31e..a847691 100644
--- a/lib/Gearman/SlotWorker.pm
+++ b/lib/Gearman/SlotWorker.pm
@@ -6,8 +6,7 @@ package Gearman::SlotWorker;
 use Devel::GlobalDestruction;
 use namespace::autoclean;
 use Log::Log4perl qw(:easy);
-Log::Log4perl->easy_init($DEBUG);
-#Log::Log4perl->easy_init($ERROR);
+Log::Log4perl->easy_init($ERROR);
 
 use Any::Moose;
 use AnyEvent;
@@ -16,7 +15,7 @@ use AnyEvent::Gearman;
 use AnyEvent::Gearman::Worker::RetryConnection;
 use Scalar::Util qw(weaken);
 use LWP::Simple;
-use POSIX;
+
 # options
 has job_servers=>(is=>'rw',isa=>'ArrayRef', required=>1);
 has cv=>(is=>'rw',required=>1);
@@ -65,7 +64,7 @@ sub BUILD{
 
     $self->register();
 
-    my $sigw = AE::signal SIGINT,sub{
+    my $sigw = AE::signal 'INT',sub{
         $self->is_stopped(1);
         if( !$self->is_busy ){
             DEBUG 'SIGINT STOP';
diff --git a/t/01-SlotWorkerOverwork.t b/t/01-SlotWorkerOverwork.t
index c1ec7a0..7ec5d32 100644
--- a/t/01-SlotWorkerOverwork.t
+++ b/t/01-SlotWorkerOverwork.t
@@ -6,9 +6,9 @@ use Gear;
 use AnyEvent;
 use AnyEvent::Gearman;
 use TestWorker;
-#
+
 use Log::Log4perl qw(:easy);
-Log::Log4perl->easy_init($DEBUG);
+Log::Log4perl->easy_init($ERROR);
 
 my $port = '9955';
 my @js = ("localhost:$port");
diff --git a/t/03-SlotOverwork.t b/t/03-SlotOverwork.t
index a912e53..cc6d8d3 100644
--- a/t/03-SlotOverwork.t
+++ b/t/03-SlotOverwork.t
@@ -8,7 +8,7 @@ use AnyEvent::Gearman;
 use Gearman::Slot;
 use Scalar::Util qw(weaken);
 use Log::Log4perl qw(:easy);
-Log::Log4perl->easy_init($DEBUG);
+Log::Log4perl->easy_init($ERROR);
 my $port = '9955';
 my @js = ("localhost:$port");
 my $cv = AE::cv;
@@ -50,7 +50,6 @@ my $res = $cv->recv;
 isnt $res,'timeout','ends successfully';
 $slot->stop();
 undef($t);
-undef($w);
 undef($c);
 undef($slot);
 gstop();
diff --git a/t/05-SlotManagerWork.t b/t/05-SlotManagerWork.t
index 1aea2c0..fb4bb8d 100644
--- a/t/05-SlotManagerWork.t
+++ b/t/05-SlotManagerWork.t
@@ -7,7 +7,7 @@ use AnyEvent;
 use AnyEvent::Gearman;
 use Gearman::SlotManager;
 use Log::Log4perl qw(:easy);
-Log::Log4perl->easy_init($DEBUG);
+Log::Log4perl->easy_init($ERROR);
 
 use Scalar::Util qw(weaken);
 my $port = '9955';
diff --git a/t/testClient.pl b/t/testClient.pl
index cb4950d..49347c4 100644
--- a/t/testClient.pl
+++ b/t/testClient.pl
@@ -10,9 +10,9 @@
 
 my %result;
 my $taskset = $client->new_task_set;
-for(1..1000){
+for(1..100){
     my $n = $_;
-    $taskset->add_task('TestWorker::reverse', "PING",
+    $taskset->add_task('TestWorker::slowreverse', "PING",
     {	
 		on_complete => sub{
 			my $resstr = ${$_[0]};
diff --git a/testManager.pl b/testManager.pl
index 401456f..0f33610 100644
--- a/testManager.pl
+++ b/testManager.pl
@@ -31,9 +31,9 @@ package main;
             },
         slots=>{
             'TestWorker'=>{
-            min=>1, 
-            max=>10,
-            workleft=>10,
+            min=>20, 
+            max=>50,
+            workleft=>0,
             }
         }
     }