diff --git a/regressions/ck_cohort/benchmark/throughput.c b/regressions/ck_cohort/benchmark/throughput.c
index bcdb9ab..b624cc1 100644
--- a/regressions/ck_cohort/benchmark/throughput.c
+++ b/regressions/ck_cohort/benchmark/throughput.c
@@ -43,13 +43,6 @@
 
 #include "../../common.h"
 
-/* 8! = 40320, evenly divide 1 .. 8 processor workload. */
-#define WORKLOAD (40320 * 2056)
-
-#ifndef ITERATE
-#define ITERATE 65536
-#endif
-
 static struct affinity a;
 static unsigned int ready;
 
@@ -135,10 +128,6 @@ main(int argc, char *argv[])
 		exit(EXIT_FAILURE);
 	}
 
-#ifdef LOCK_INIT
-	LOCK_INIT;
-#endif
-
 	critical = atoi(argv[4]);
 	if (critical < 0) {
 		ck_error("ERROR: critical section cannot be negative\n");