diff --git a/bench_conprod.py b/bench_conprod.py
index 17c98eb73c2202470d77f58dc03bf7a39f931a39..21e4b13aa839a2511d0aa803913dc0abbc435935 100644
--- a/bench_conprod.py
+++ b/bench_conprod.py
@@ -25,7 +25,7 @@ class Benchmark_ConProd():
         self.results = {}
     
     def prepare(self, verbose=False):
-        req = ["build/bench_conprod", "build/memusage"]
+        req = ["build/bench_conprod"]
         for r in req:
             if not os.path.isfile(r):
                 print(r, "not found")
diff --git a/bench_loop.py b/bench_loop.py
index c55f3ad610d1b8b453a5c9d877314ff588b7ce80..c48e682d00bfd1e43faa1f536441ee4f7e4c2621 100644
--- a/bench_loop.py
+++ b/bench_loop.py
@@ -25,7 +25,7 @@ class Benchmark_Loop():
         self.results = {}
     
     def prepare(self, verbose=False):
-        req = ["build/bench_loop", "build/memusage"]
+        req = ["build/bench_loop"]
         for r in req:
             if not os.path.isfile(r):
                 print(r, "not found")
diff --git a/common_targets.py b/common_targets.py
new file mode 100644
index 0000000000000000000000000000000000000000..177168b74d6644e78d6a9b7bfcbff4f5cf299fb0
--- /dev/null
+++ b/common_targets.py
@@ -0,0 +1,3 @@
+common_targets = {"klmalloc" : ("", "targets/libklmalloc.so"),
+                  "libc" : ("", ""), # libc
+                  "tcmalloc" : ("", "targets/libtcmalloc.so")}