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selftests/resctrl: Call kselftest APIs to log test results

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Call kselftest APIs instead of using printf() to log test results
for cleaner code and better future extension.

Suggested-by: Shuah Khan <skhan@linuxfoundation.org>
Tested-by: Babu Moger <babu.moger@amd.com>
Signed-off-by: Fenghua Yu <fenghua.yu@intel.com>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
This commit is contained in:
Fenghua Yu
2021-03-17 02:22:42 +00:00
committed by Shuah Khan
parent 2f320911d9
commit ca2f4214f9
8 changed files with 105 additions and 117 deletions
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37
tools/testing/selftests/resctrl/cat_test.c
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@@ -52,25 +52,28 @@ static int cat_setup(int num, ...)
return ret;
}
static void show_cache_info(unsigned long sum_llc_perf_miss, int no_of_bits,
unsigned long span)
static int show_cache_info(unsigned long sum_llc_perf_miss, int no_of_bits,
unsigned long span)
{
unsigned long allocated_cache_lines = span / 64;
unsigned long avg_llc_perf_miss = 0;
float diff_percent;
int ret;
avg_llc_perf_miss = sum_llc_perf_miss / (NUM_OF_RUNS - 1);
diff_percent = ((float)allocated_cache_lines - avg_llc_perf_miss) /
allocated_cache_lines * 100;
printf("%sok CAT: cache miss rate within %d%%\n",
!is_amd && abs((int)diff_percent) > MAX_DIFF_PERCENT ?
"not " : "", MAX_DIFF_PERCENT);
tests_run++;
printf("# Percent diff=%d\n", abs((int)diff_percent));
printf("# Number of bits: %d\n", no_of_bits);
printf("# Avg_llc_perf_miss: %lu\n", avg_llc_perf_miss);
printf("# Allocated cache lines: %lu\n", allocated_cache_lines);
ret = !is_amd && abs((int)diff_percent) > MAX_DIFF_PERCENT;
ksft_print_msg("Cache miss rate %swithin %d%%\n",
ret ? "not " : "", MAX_DIFF_PERCENT);
ksft_print_msg("Percent diff=%d\n", abs((int)diff_percent));
ksft_print_msg("Number of bits: %d\n", no_of_bits);
ksft_print_msg("Avg_llc_perf_miss: %lu\n", avg_llc_perf_miss);
ksft_print_msg("Allocated cache lines: %lu\n", allocated_cache_lines);
return ret;
}
static int check_results(struct resctrl_val_param *param)
@@ -80,7 +83,7 @@ static int check_results(struct resctrl_val_param *param)
int runs = 0, no_of_bits = 0;
FILE *fp;
printf("# Checking for pass/fail\n");
ksft_print_msg("Checking for pass/fail\n");
fp = fopen(param->filename, "r");
if (!fp) {
perror("# Cannot open file");
@@ -108,9 +111,7 @@ static int check_results(struct resctrl_val_param *param)
fclose(fp);
no_of_bits = count_bits(param->mask);
show_cache_info(sum_llc_perf_miss, no_of_bits, param->span);
return 0;
return show_cache_info(sum_llc_perf_miss, no_of_bits, param->span);
}
void cat_test_cleanup(void)
@@ -146,15 +147,15 @@ int cat_perf_miss_val(int cpu_no, int n, char *cache_type)
ret = get_cache_size(cpu_no, cache_type, &cache_size);
if (ret)
return ret;
printf("cache size :%lu\n", cache_size);
ksft_print_msg("Cache size :%lu\n", cache_size);
/* Get max number of bits from default-cabm mask */
count_of_bits = count_bits(long_mask);
if (n < 1 || n > count_of_bits - 1) {
printf("Invalid input value for no_of_bits n!\n");
printf("Please Enter value in range 1 to %d\n",
count_of_bits - 1);
ksft_print_msg("Invalid input value for no_of_bits n!\n");
ksft_print_msg("Please enter value in range 1 to %d\n",
count_of_bits - 1);
return -1;
}