diff --git a/docker/execute b/docker/execute
index 58eaf93..647dbfb 100755
--- a/docker/execute
+++ b/docker/execute
@@ -1,10 +1,5 @@
 #!/usr/bin/env bash
 
-#docker run --rm -it piston /usr/bin/python -V
-#docker run --rm -it piston /usr/bin/python3 -V
-#docker run --rm -it piston /usr/bin/ruby --version
-#docker run --rm -it piston /usr/bin/nodejs --version
-
 dir="$( cd "$( dirname "$0" )" && pwd )"
 
 if [ -z "$1" ]; then
@@ -51,7 +46,6 @@ esac
 docker run \
     -m 64m \
     --network none \
-    --cpus=".2" \
     --rm \
     --log-driver none \
     -v $filepath:/$file:ro \
diff --git a/docker/executors/c b/docker/executors/c
index befbf57..64e1558 100755
--- a/docker/executors/c
+++ b/docker/executors/c
@@ -1,4 +1,4 @@
 #!/bin/sh
 
 gcc -o binary -x c $1
-timeout -s KILL 2 ./binary
+timeout -s KILL 3 ./binary
diff --git a/docker/executors/cpp b/docker/executors/cpp
index 9ec0065..6097145 100755
--- a/docker/executors/cpp
+++ b/docker/executors/cpp
@@ -1,4 +1,4 @@
 #!/bin/sh
 
 g++ -o binary -x c $1
-timeout -s KILL 2 ./binary
+timeout -s KILL 3 ./binary
diff --git a/docker/executors/go b/docker/executors/go
index 861ed39..bfc21a0 100755
--- a/docker/executors/go
+++ b/docker/executors/go
@@ -6,4 +6,4 @@ go build $file
 
 file=${file%%.*}
 
-timeout -s KILL 2 ./$file
+timeout -s KILL 3 ./$file
diff --git a/docker/executors/node b/docker/executors/node
index 762ab75..d27663a 100755
--- a/docker/executors/node
+++ b/docker/executors/node
@@ -1,3 +1,3 @@
 #!/bin/sh
 
-timeout -s KILL 2 nodejs $*
+timeout -s KILL 3 nodejs $*
diff --git a/docker/executors/python2 b/docker/executors/python2
index a44fa8b..8d2076c 100755
--- a/docker/executors/python2
+++ b/docker/executors/python2
@@ -1,3 +1,3 @@
 #!/bin/sh
 
-timeout -s KILL 2 python2 $*
+timeout -s KILL 3 python2 $*
diff --git a/docker/executors/python3 b/docker/executors/python3
index a7fd360..021286a 100755
--- a/docker/executors/python3
+++ b/docker/executors/python3
@@ -1,3 +1,3 @@
 #!/bin/sh
 
-timeout -s KILL 2 python3.6 $*
+timeout -s KILL 3 python3.6 $*
diff --git a/docker/executors/ruby b/docker/executors/ruby
index ef74d2d..3c006db 100755
--- a/docker/executors/ruby
+++ b/docker/executors/ruby
@@ -1,3 +1,3 @@
 #!/bin/sh
 
-timeout -s KILL 2 ruby $*
+timeout -s KILL 3 ruby $*
diff --git a/readme.md b/readme.md
index 1b5cb38..52be84a 100644
--- a/readme.md
+++ b/readme.md
@@ -38,7 +38,9 @@ various privilege escalation, denial-of-service, and resource saturation threats
 #### Performance
 One thing that needs investigation is how to spawn containers faster. The Docker daemon is synchronous in its
 container spawning. This means the bottleneck for code execution is how fast containers can start. Environments
-vary, but, in ours they start at a rate of no more than 1 per second.
+vary, but, in ours they start at a rate of no more than 1 per second. One possibility is Docker in Docker where by
+X number of containers stay running all the time and then requests are delivered to each in a round robin and spawn
+new Piston containers.
 
 #### License
 Piston is licensed under the MIT license.