benchmarks/gem_create: Report combined concurrent allocation rate

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
diff --git a/benchmarks/ezbench.d/gem_create.test b/benchmarks/ezbench.d/gem_create.test
index aa107a8..d882fe5 100644
--- a/benchmarks/ezbench.d/gem_create.test
+++ b/benchmarks/ezbench.d/gem_create.test
@@ -3,8 +3,7 @@
 [ -e $IGT_BENCHMARKS/gem_create ] || return 1
 sudo -n true || return 1
 
-test_name="gem:create:4k gem:create:4M"
-test_name+="gem:create:f4k gem:create:f4M"
+test_name="gem:create:4k gem:create:4M gem:create:f4k gem:create:f4M"
 gem:create:4k_run() { sudo $IGT_BENCHMARKS/gem_create -s 4096 -r $1; }
 gem:create:4M_run() { sudo $IGT_BENCHMARKS/gem_create -s 4194304 -r $1; }
 
diff --git a/benchmarks/gem_create.c b/benchmarks/gem_create.c
index 519ab92..1e7efac 100644
--- a/benchmarks/gem_create.c
+++ b/benchmarks/gem_create.c
@@ -177,7 +177,7 @@
 			for (int child = 0; child < ncpus; child++)
 				shared[ncpus] += shared[child];
 
-			printf("%7.3f\n", shared[ncpus] / ncpus);
+			printf("%7.3f\n", shared[ncpus]);
 		}
 	}