diff --git a/.travis.yml b/.travis.yml
new file mode 100644
index 0000000..cd4898c
--- /dev/null
+++ b/.travis.yml
@@ -0,0 +1,14 @@
+language: cpp
+matrix:
+  include:
+
+    - os: linux
+      compiler: gcc
+      env: COMPILER='g++' CXXSTD='c++11'
+
+
+dist: trusty
+sudo: false
+
+script: 
+  mkdir build && cd build && cmake -DPHMAP_BUILD_TESTS=ON -DCMAKE_CXX_COMPILER=${COMPILER} -DCXXFLAGS="-std=${CXXSTD}" .. && cmake --build . && make test
diff --git a/CMakeLists.txt b/CMakeLists.txt
index c9783a0..23fd6b3 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -1,4 +1,4 @@
-cmake_minimum_required(VERSION 3.4)
+cmake_minimum_required(VERSION 3.2)
 
 list (APPEND CMAKE_MODULE_PATH "${CMAKE_CURRENT_SOURCE_DIR}/cmake")
 
diff --git a/README.md b/README.md
index 5b192f1..25d62fe 100644
--- a/README.md
+++ b/README.md
@@ -1,3 +1,5 @@
+[![Build Status](https://travis-ci.org/greg7mdp/parallel_hashmap.svg?branch=master)](https://travis-ci.org/greg7mdp/org/greg7mdp/parallel_hashmap)
+
 # The Parallel Hashmap: very fast, very memory friendly
 
 Click here [For a full writeup explaining the design and benefits of the Parallel Hashmap](https://greg7mdp.github.io/parallel-hashmap/).
@@ -77,4 +79,8 @@ Key points:
    b. multithreading support (and inherent internal parallelism)
 
 
+## Memory usage
+
+
+
 
diff --git a/travis b/travis
new file mode 100644
index 0000000..082e5a5
--- /dev/null
+++ b/travis
@@ -0,0 +1,115 @@
+language: cpp
+matrix:
+  include:
+
+    - os: linux
+      compiler: gcc
+      env: COMPILER='g++' CXXSTD='c++11'
+
+    - os: linux
+      compiler: clang
+      env: COMPILER='clang++' CXXSTD='c++11'
+
+    - os: osx
+      compiler: gcc
+      env: COMPILER='g++' CXXSTD='c++11'
+
+    - os: osx
+      compiler: clang
+      env: COMPILER='clang++' CXXSTD='c++11'
+
+    - os: linux
+      compiler: gcc
+      addons:
+        apt:
+          sources: 
+            - ubuntu-toolchain-r-test
+          packages: 
+            - g++-5
+      env: COMPILER='g++-5' CXXSTD='c++11'
+
+    - os: linux
+      compiler: gcc
+      addons:
+        apt:
+          sources: 
+            - ubuntu-toolchain-r-test
+          packages: 
+            - g++-6
+      env: COMPILER='g++-6' CXXSTD='c++11'
+
+    - os: linux
+      compiler: gcc
+      addons:
+        apt:
+          sources: 
+            - ubuntu-toolchain-r-test
+          packages: 
+            - g++-7
+      env: COMPILER='g++-7' CXXSTD='c++11'
+
+    - os: linux
+      compiler: gcc
+      addons:
+        apt:
+          sources: 
+            - ubuntu-toolchain-r-test
+          packages: 
+            - g++-8
+      env: COMPILER='g++-8' CXXSTD='c++14'
+
+    - os: linux
+      compiler: gcc
+      addons:
+        apt:
+          sources: 
+            - ubuntu-toolchain-r-test
+          packages: 
+            - g++-8
+      env: COMPILER='g++-8' CXXSTD='c++17'
+
+    - os: linux
+      compiler: clang
+      addons:
+        apt:
+          sources: 
+            - llvm-toolchain-trusty-3.9
+          packages:
+            - clang-3.9
+      env: COMPILER='clang++-3.9' CXXSTD='c++11'
+
+    - os: linux
+      compiler: clang
+      addons:
+        apt:
+          sources: 
+            - llvm-toolchain-trusty-4.0
+          packages:
+            - clang-4.0
+      env: COMPILER='clang++-4.0' CXXSTD='c++11'
+
+    - os: linux
+      compiler: clang
+      addons:
+        apt:
+          sources: 
+            - llvm-toolchain-trusty-5.0
+          packages:
+            - clang-5.0
+      env: COMPILER='clang++-5.0' CXXSTD='c++14'
+
+    - os: linux
+      compiler: clang
+      addons:
+        apt:
+          sources: 
+            - llvm-toolchain-trusty-5.0
+          packages:
+            - clang-5.0
+      env: COMPILER='clang++-5.0' CXXSTD='c++17'
+
+dist: trusty
+sudo: false
+
+script: 
+  mkdir build && cd build && cmake -DPHMAP_BUILD_TESTS=ON -DCMAKE_CXX_COMPILER=${COMPILER} -DCXXFLAGS="-std=${CXXSTD}" .. && cmake --build . && make test