diff --git a/bench/bench-collectionc.c b/bench/bench-collectionc.c
index 4bd2aea0..85c32bbc 100644
--- a/bench/bench-collectionc.c
+++ b/bench/bench-collectionc.c
@@ -3,9 +3,6 @@
 #include <stdlib.h>
 #include <stdio.h>
 #include <stdbool.h>
-#include <sys/types.h>
-#include <sys/resource.h>
-#include <sys/time.h>
 
 #include "array.h"
 #include "slist.h"
diff --git a/bench/bench-flathashmap.cpp b/bench/bench-flathashmap.cpp
index f7b0705c..075b3767 100644
--- a/bench/bench-flathashmap.cpp
+++ b/bench/bench-flathashmap.cpp
@@ -15,9 +15,6 @@
 #include <stdio.h>
 #include <stdbool.h>
 #include <string.h>
-#include <sys/types.h>
-#include <sys/resource.h>
-#include <sys/time.h>
 
 #include "flat_hash_map.hpp"
 
diff --git a/bench/bench-glib.c b/bench/bench-glib.c
index 7b049c0a..11d27721 100644
--- a/bench/bench-glib.c
+++ b/bench/bench-glib.c
@@ -4,9 +4,6 @@
 #include <stdio.h>
 #include <stdbool.h>
 #include <string.h>
-#include <sys/types.h>
-#include <sys/resource.h>
-#include <sys/time.h>
 
 #include <glib.h>
 
diff --git a/bench/bench-hopscotchmap.cpp b/bench/bench-hopscotchmap.cpp
index 773be697..907054f1 100644
--- a/bench/bench-hopscotchmap.cpp
+++ b/bench/bench-hopscotchmap.cpp
@@ -14,9 +14,6 @@
 #include <stdio.h>
 #include <stdbool.h>
 #include <string.h>
-#include <sys/types.h>
-#include <sys/resource.h>
-#include <sys/time.h>
 
 #include "src/hopscotch_map.h"
 
diff --git a/bench/bench-klib.c b/bench/bench-klib.c
index 5173c22d..51fa63e7 100644
--- a/bench/bench-klib.c
+++ b/bench/bench-klib.c
@@ -3,9 +3,6 @@
 #include <stdlib.h>
 #include <stdio.h>
 #include <stdbool.h>
-#include <sys/types.h>
-#include <sys/resource.h>
-#include <sys/time.h>
 
 #include "kvec.h"
 #include "klist.h"
diff --git a/bench/bench-libdynamic.c b/bench/bench-libdynamic.c
index 6f4dff39..4a91a0c6 100644
--- a/bench/bench-libdynamic.c
+++ b/bench/bench-libdynamic.c
@@ -5,9 +5,6 @@
 #include <stdbool.h>
 #include <string.h>
 #include <stdint.h>
-#include <sys/types.h>
-#include <sys/resource.h>
-#include <sys/time.h>
 
 #include "dynamic.h"
 
diff --git a/bench/bench-mlib.c b/bench/bench-mlib.c
index 14bc5d73..8b6984af 100644
--- a/bench/bench-mlib.c
+++ b/bench/bench-mlib.c
@@ -3,9 +3,6 @@
 #include <stdlib.h>
 #include <stdio.h>
 #include <stdbool.h>
-#include <sys/types.h>
-#include <sys/resource.h>
-#include <sys/time.h>
 
 #include "m-array.h"
 #include "m-list.h"
diff --git a/bench/bench-qlibc.c b/bench/bench-qlibc.c
index a5c624cc..ff79c3ba 100644
--- a/bench/bench-qlibc.c
+++ b/bench/bench-qlibc.c
@@ -4,9 +4,6 @@
 #include <stdio.h>
 #include <stdbool.h>
 #include <string.h>
-#include <sys/types.h>
-#include <sys/resource.h>
-#include <sys/time.h>
 #include <assert.h>
 
 #include "qlibc/qlibc.h"
diff --git a/bench/bench-qt.cpp b/bench/bench-qt.cpp
index 2523aec3..2ac74f5d 100644
--- a/bench/bench-qt.cpp
+++ b/bench/bench-qt.cpp
@@ -11,9 +11,6 @@
 #include <stdio.h>
 #include <stdbool.h>
 #include <string.h>
-#include <sys/types.h>
-#include <sys/resource.h>
-#include <sys/time.h>
 
 using namespace std;
 
diff --git a/bench/bench-sparsepp.cpp b/bench/bench-sparsepp.cpp
index 2c49a25f..68326102 100644
--- a/bench/bench-sparsepp.cpp
+++ b/bench/bench-sparsepp.cpp
@@ -14,9 +14,6 @@
 #include <stdio.h>
 #include <stdbool.h>
 #include <string.h>
-#include <sys/types.h>
-#include <sys/resource.h>
-#include <sys/time.h>
 
 #include <sparsepp/spp.h>
 
diff --git a/bench/bench-stl.cpp b/bench/bench-stl.cpp
index 8145691f..a34c7d09 100644
--- a/bench/bench-stl.cpp
+++ b/bench/bench-stl.cpp
@@ -14,9 +14,6 @@
 #include <stdio.h>
 #include <stdbool.h>
 #include <string.h>
-#include <sys/types.h>
-#include <sys/resource.h>
-#include <sys/time.h>
 
 using namespace std;
 
diff --git a/bench/bench-tommyds.c b/bench/bench-tommyds.c
index 239a6bc9..b6972a6a 100644
--- a/bench/bench-tommyds.c
+++ b/bench/bench-tommyds.c
@@ -4,9 +4,6 @@
 #include <stdio.h>
 #include <stdbool.h>
 #include <string.h>
-#include <sys/types.h>
-#include <sys/resource.h>
-#include <sys/time.h>
 
 #include "tommyds/tommy.h"
 
diff --git a/bench/bench-uthash.c b/bench/bench-uthash.c
index ece00b98..8f8faa65 100644
--- a/bench/bench-uthash.c
+++ b/bench/bench-uthash.c
@@ -3,9 +3,6 @@
 #include <stdlib.h>
 #include <stdio.h>
 #include <stdbool.h>
-#include <sys/types.h>
-#include <sys/resource.h>
-#include <sys/time.h>
 #include <string.h>
 
 #include "include/uthash.h"
diff --git a/bench/common.h b/bench/common.h
index 35beb0ed..aed80df2 100644
--- a/bench/common.h
+++ b/bench/common.h
@@ -1,4 +1,48 @@
-unsigned long g_result;
+/*
+ * M*LIB - common functions for bench module
+ *
+ * Copyright (c) 2017, Patrick Pelissier
+ * All rights reserved.
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ * + Redistributions of source code must retain the above copyright
+ *   notice, this list of conditions and the following disclaimer.
+ * + Redistributions in binary form must reproduce the above copyright
+ *   notice, this list of conditions and the following disclaimer in the
+ *   documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE REGENTS AND CONTRIBUTORS BE LIABLE FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+*/
+#ifndef __COMMON_BENCH__H
+#define __COMMON_BENCH__H
+
+#if defined(_WIN32)
+/* WINDOWS variant */
+#include <windows.h>
+
+static unsigned long long
+cputime (void)
+{
+	LARGE_INTEGER freq, val;
+	QueryPerformanceFrequency(&freq);
+	QueryPerformanceCounter(&val);
+	return (unsigned long long) (1000000. * (double) val.QuadPart / (double) freq.QuadPart);
+}
+
+#else
+/* UNIX variant */
+#include <sys/types.h>
+#include <sys/resource.h>
+#include <sys/time.h>
 
 static unsigned long long
 cputime (void)
@@ -8,7 +52,11 @@ cputime (void)
   return rus.ru_utime.tv_sec * 1000000ULL + rus.ru_utime.tv_usec;
 }
 
-static unsigned int randValue = 0;
+#endif
+
+unsigned long g_result;
+unsigned int randValue = 0;
+
 static void rand_init(void)
 {
   randValue = 0;
@@ -27,7 +75,7 @@ static void test_function(const char str[], size_t n, void (*func)(size_t))
   (*func)(n);
   end = cputime();
   end = (end - start) / 1000U;
-  printf ("%s %Lu ms for n = %lu [r=%lu]\n", str, end, n, g_result);
+  printf ("%s %lu ms for n = %lu [r=%lu]\n", str, (unsigned long) end, (unsigned long) n, g_result);
 }
 
 #if defined(_WIN32)
@@ -63,3 +111,5 @@ static inline int get_cpu_count(void)
   return 1;
 #endif
 }
+
+#endif