diff --git a/.travis.yml b/.travis.yml
index 9955fb8c..d2a22c56 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -23,4 +23,5 @@ script:
   - mkdir $CXX && cd $CXX
   - ../cmake-3.3.1-Linux-x86_64/bin/cmake -DCMAKE_BUILD_TYPE=$build_type -DCMAKE_CXX_FLAGS="-Wall -Wextra -pedantic -Wno-parentheses" ../
   - ../cmake-3.3.1-Linux-x86_64/bin/cmake --build .
-  - ./test/foonathan_memory_test
\ No newline at end of file
+  - ./test/foonathan_memory_test
+  - ./test/foonathan_memory_profiling 1
\ No newline at end of file
diff --git a/README.md b/README.md
index e3b391f1..107a53e5 100644
--- a/README.md
+++ b/README.md
@@ -40,7 +40,7 @@ In addition:
 ## Basic example
 
 ```cpp
-include <algorithm>
+#include <algorithm>
 #include <iostream>
 #include <iterator>
 
diff --git a/doc/index.md b/doc/index.md
index 8ce72087..8cf36980 100644
--- a/doc/index.md
+++ b/doc/index.md
@@ -38,7 +38,7 @@ The concepts of this library are defined are [here](md_doc_concepts.html).
  ## Basic example
  
  ```cpp
- include <algorithm>
+ #include <algorithm>
  #include <iostream>
  #include <iterator>
  
diff --git a/src/detail/free_list.cpp b/src/detail/free_list.cpp
index 8b19c03b..e5a73cf1 100644
--- a/src/detail/free_list.cpp
+++ b/src/detail/free_list.cpp
@@ -479,7 +479,8 @@ void* ordered_free_memory_list::allocate(std::size_t n) FOONATHAN_NOEXCEPT
     xor_list_change(i.next, i.last, i.prev); // change prev pointer from i.next to i.prev
     capacity_ -= i.size(actual_size);
 
-    if (less(i.prev, last_dealloc_) && less(last_dealloc_, i.next))
+    // if last_dealloc_ points into the array being removed
+    if (less_equal(i.first, last_dealloc_) && less_equal(last_dealloc_, i.last))
     {
         // move last_dealloc just outside range
         last_dealloc_ = i.next;
diff --git a/src/detail/free_list_utils.hpp b/src/detail/free_list_utils.hpp
index b094a813..c04be145 100644
--- a/src/detail/free_list_utils.hpp
+++ b/src/detail/free_list_utils.hpp
@@ -122,6 +122,11 @@ namespace foonathan { namespace memory
 #endif
         }
 
+        inline bool less_equal(void *a, void *b) FOONATHAN_NOEXCEPT
+        {
+            return a == b || less(a, b);
+        }
+
         inline bool greater(void *a, void *b) FOONATHAN_NOEXCEPT
         {
 #if FOONATHAN_HOSTED_IMPLEMENTATION
@@ -130,6 +135,11 @@ namespace foonathan { namespace memory
             return to_int(a) < to_int(b);
 #endif
         }
+
+        inline bool greater_equal(void *a, void *b) FOONATHAN_NOEXCEPT
+        {
+            return a == b || greater(a, b);
+        }
     } // namespace detail
 }} // namespace foonathan::memory
 
diff --git a/src/detail/small_free_list.cpp b/src/detail/small_free_list.cpp
index 6a3e457b..c81e2683 100644
--- a/src/detail/small_free_list.cpp
+++ b/src/detail/small_free_list.cpp
@@ -344,8 +344,10 @@ chunk* small_free_memory_list::find_chunk_impl(std::size_t n) FOONATHAN_NOEXCEPT
             return c;
 
         cur_forward = cur_forward->next;
-        cur_backward = cur_backward->next;
-    } while (cur_forward != cur_backward);
+        cur_backward = cur_backward->prev;
+        FOONATHAN_MEMORY_ASSERT(cur_forward != alloc_chunk_);
+        FOONATHAN_MEMORY_ASSERT(cur_backward != alloc_chunk_);
+    } while (true);
     FOONATHAN_MEMORY_UNREACHABLE("there is memory available somewhere...");
     return nullptr;
 }
diff --git a/test/benchmark.hpp b/test/benchmark.hpp
index cc10c566..d9bda50f 100644
--- a/test/benchmark.hpp
+++ b/test/benchmark.hpp
@@ -26,7 +26,7 @@ std::size_t measure(F func, Args&&... args)
     return std::size_t(duration.count());
 }
 
-const std::size_t sample_size = 1024u;
+std::size_t sample_size = 1024u;
 
 template<typename F, typename Alloc, typename ... Args>
 std::size_t benchmark(F measure_func, Alloc make_alloc, Args&& ... args)
diff --git a/test/profiling.cpp b/test/profiling.cpp
index d06fbafc..43b66aae 100644
--- a/test/profiling.cpp
+++ b/test/profiling.cpp
@@ -114,8 +114,11 @@ void benchmark_array(std::initializer_list<std::size_t> counts,
     benchmark_array<Second, Tail...>(counts, node_sizes, array_sizes);
 }
 
-int main()
+int main(int argc, char *argv[])
 {
+    if (argc >= 2)
+        sample_size = std::size_t(std::atoi(argv[1]));
+
     class comma_numpunct : public std::numpunct<char>
     {
     protected: