Implement average of multiple trials.

benchmark.sh

@@ -1,6 +1,7 @@
 #!/bin/bash
 
 BIN="./target/release/indivisible"
+TRIALS=20
 
 if ! [ -f "$BIN" ]
 then
@@ -8,4 +9,14 @@ then
 	exit 1
 fi
 
-time "$BIN" 100000000
+echo "Calculating primes up to 100,000,000"
+TOTAL="0"
+for _ in $(seq "$TRIALS")
+do
+	TIME=$(command time -f "%e" "$BIN" 100000000 2>&1 >/dev/null)
+	TOTAL=$(calc "$TOTAL + $TIME")
+done
+
+AVG=$(calc "$TOTAL / $TRIALS")
+
+echo "Average time: ${AVG}s"