X-Git-Url: http://git.monstr.eu/?a=blobdiff_plain;f=tools%2Ftesting%2Fselftests%2Fresctrl%2Fmba_test.c;h=26f12ad4c66330978ba13dd14164519057a62def;hb=f1dd71982d1949a988cedbf4d9f2c726ee24344f;hp=7bf8eaa6204bf5df78c45096c596244733868623;hpb=8b46ed57f34df111c224d4319c891b43e0e03806;p=linux-2.6-microblaze.git

diff --git a/tools/testing/selftests/resctrl/mba_test.c b/tools/testing/selftests/resctrl/mba_test.c
index 7bf8eaa6204b..26f12ad4c663 100644
--- a/tools/testing/selftests/resctrl/mba_test.c
+++ b/tools/testing/selftests/resctrl/mba_test.c
@@ -12,7 +12,7 @@
 
 #define RESULT_FILE_NAME	"result_mba"
 #define NUM_OF_RUNS		5
-#define MAX_DIFF		300
+#define MAX_DIFF_PERCENT	5
 #define ALLOCATION_MAX		100
 #define ALLOCATION_MIN		10
 #define ALLOCATION_STEP		10
@@ -56,13 +56,14 @@ static void show_mba_info(unsigned long *bw_imc, unsigned long *bw_resc)
 	int allocation, runs;
 	bool failed = false;
 
-	printf("# Results are displayed in (MB)\n");
+	ksft_print_msg("Results are displayed in (MB)\n");
 	/* Memory bandwidth from 100% down to 10% */
 	for (allocation = 0; allocation < ALLOCATION_MAX / ALLOCATION_STEP;
 	     allocation++) {
 		unsigned long avg_bw_imc, avg_bw_resc;
 		unsigned long sum_bw_imc = 0, sum_bw_resc = 0;
-		unsigned long avg_diff;
+		int avg_diff_per;
+		float avg_diff;
 
 		/*
 		 * The first run is discarded due to inaccurate value from
@@ -76,23 +77,26 @@ static void show_mba_info(unsigned long *bw_imc, unsigned long *bw_resc)
 
 		avg_bw_imc = sum_bw_imc / (NUM_OF_RUNS - 1);
 		avg_bw_resc = sum_bw_resc / (NUM_OF_RUNS - 1);
-		avg_diff = labs((long)(avg_bw_resc - avg_bw_imc));
-
-		printf("%sok MBA schemata percentage %u smaller than %d %%\n",
-		       avg_diff > MAX_DIFF ? "not " : "",
-		       ALLOCATION_MAX - ALLOCATION_STEP * allocation,
-		       MAX_DIFF);
-		tests_run++;
-		printf("# avg_diff: %lu\n", avg_diff);
-		printf("# avg_bw_imc: %lu\n", avg_bw_imc);
-		printf("# avg_bw_resc: %lu\n", avg_bw_resc);
-		if (avg_diff > MAX_DIFF)
+		avg_diff = (float)labs(avg_bw_resc - avg_bw_imc) / avg_bw_imc;
+		avg_diff_per = (int)(avg_diff * 100);
+
+		ksft_print_msg("%s MBA: diff within %d%% for schemata %u\n",
+			       avg_diff_per > MAX_DIFF_PERCENT ?
+			       "Fail:" : "Pass:",
+			       MAX_DIFF_PERCENT,
+			       ALLOCATION_MAX - ALLOCATION_STEP * allocation);
+
+		ksft_print_msg("avg_diff_per: %d%%\n", avg_diff_per);
+		ksft_print_msg("avg_bw_imc: %lu\n", avg_bw_imc);
+		ksft_print_msg("avg_bw_resc: %lu\n", avg_bw_resc);
+		if (avg_diff_per > MAX_DIFF_PERCENT)
 			failed = true;
 	}
 
-	printf("%sok schemata change using MBA%s\n", failed ? "not " : "",
-	       failed ? " # at least one test failed" : "");
-	tests_run++;
+	ksft_print_msg("%s schemata change using MBA\n",
+		       failed ? "Fail:" : "Pass:");
+	if (failed)
+		ksft_print_msg("At least one test failed");
 }
 
 static int check_results(void)
@@ -141,7 +145,7 @@ void mba_test_cleanup(void)
 int mba_schemata_change(int cpu_no, char *bw_report, char **benchmark_cmd)
 {
 	struct resctrl_val_param param = {
-		.resctrl_val	= "mba",
+		.resctrl_val	= MBA_STR,
 		.ctrlgrp	= "c1",
 		.mongrp		= "m1",
 		.cpu_no		= cpu_no,
@@ -154,9 +158,6 @@ int mba_schemata_change(int cpu_no, char *bw_report, char **benchmark_cmd)
 
 	remove(RESULT_FILE_NAME);
 
-	if (!validate_resctrl_feature_request("mba"))
-		return -1;
-
 	ret = resctrl_val(benchmark_cmd, &param);
 	if (ret)
 		return ret;