Test name is passed to fill_buf functions so that they can loop around buffer only once. This is required for CAT test case.
To loop around buffer only once, we don't need to let fill_buf know which test case it is. Instead, use a boolean argument 'once' which makes fill_buf more generic.
As the benchmark_cmd no longer needs to include the test name, a few test running functions can be simplified to not write the test name into the default benchmark_cmd which allows dropping has_ben argument from the functions too.
Co-developed-by: Fenghua Yu fenghua.yu@intel.com Signed-off-by: Fenghua Yu fenghua.yu@intel.com Signed-off-by: Ilpo Järvinen ilpo.jarvinen@linux.intel.com --- tools/testing/selftests/resctrl/cache.c | 3 +-- tools/testing/selftests/resctrl/fill_buf.c | 22 +++++++++---------- tools/testing/selftests/resctrl/resctrl.h | 4 ++-- .../testing/selftests/resctrl/resctrl_tests.c | 14 +++++------- tools/testing/selftests/resctrl/resctrlfs.c | 11 +++++++--- 5 files changed, 27 insertions(+), 27 deletions(-)
diff --git a/tools/testing/selftests/resctrl/cache.c b/tools/testing/selftests/resctrl/cache.c index ed5ec8a78c30..a15f1f2715cd 100644 --- a/tools/testing/selftests/resctrl/cache.c +++ b/tools/testing/selftests/resctrl/cache.c @@ -249,8 +249,7 @@ int cat_val(struct resctrl_val_param *param) if (ret) break;
- if (run_fill_buf(param->span, memflush, operation, - resctrl_val)) { + if (run_fill_buf(param->span, memflush, operation, true)) { fprintf(stderr, "Error-running fill buffer\n"); ret = -1; break; diff --git a/tools/testing/selftests/resctrl/fill_buf.c b/tools/testing/selftests/resctrl/fill_buf.c index 3a10b554d778..677e1a113629 100644 --- a/tools/testing/selftests/resctrl/fill_buf.c +++ b/tools/testing/selftests/resctrl/fill_buf.c @@ -108,14 +108,14 @@ void fill_one_span_write(unsigned char *start_ptr, unsigned char *end_ptr) }
static int fill_cache_read(unsigned char *start_ptr, unsigned char *end_ptr, - char *resctrl_val) + bool once) { int ret = 0; FILE *fp;
while (1) { ret = fill_one_span_read(start_ptr, end_ptr); - if (!strncmp(resctrl_val, CAT_STR, sizeof(CAT_STR))) + if (once) break; }
@@ -132,11 +132,11 @@ static int fill_cache_read(unsigned char *start_ptr, unsigned char *end_ptr, }
static int fill_cache_write(unsigned char *start_ptr, unsigned char *end_ptr, - char *resctrl_val) + bool once) { while (1) { fill_one_span_write(start_ptr, end_ptr); - if (!strncmp(resctrl_val, CAT_STR, sizeof(CAT_STR))) + if (once) break; }
@@ -156,16 +156,16 @@ int alloc_buffer(unsigned long long buf_size, int memflush) return 0; }
-int use_buffer(unsigned long long buf_size, int op, char *resctrl_val) +int use_buffer(unsigned long long buf_size, int op, bool once) { unsigned char *end_ptr; int ret;
end_ptr = startptr + buf_size; if (op == 0) - ret = fill_cache_read(startptr, end_ptr, resctrl_val); + ret = fill_cache_read(startptr, end_ptr, once); else - ret = fill_cache_write(startptr, end_ptr, resctrl_val); + ret = fill_cache_write(startptr, end_ptr, once);
if (ret) printf("\n Error in fill cache read/write...\n"); @@ -174,7 +174,7 @@ int use_buffer(unsigned long long buf_size, int op, char *resctrl_val) }
static int -fill_cache(unsigned long long buf_size, int memflush, int op, char *resctrl_val) +fill_cache(unsigned long long buf_size, int memflush, int op, bool once) { int ret;
@@ -182,18 +182,18 @@ fill_cache(unsigned long long buf_size, int memflush, int op, char *resctrl_val) if (ret) return ret;
- ret = use_buffer(buf_size, op, resctrl_val); + ret = use_buffer(buf_size, op, once); free_buffer();
return ret; }
-int run_fill_buf(unsigned long span, int memflush, int op, char *resctrl_val) +int run_fill_buf(unsigned long span, int memflush, int op, bool once) { unsigned long long cache_size = span; int ret;
- ret = fill_cache(cache_size, memflush, op, resctrl_val); + ret = fill_cache(cache_size, memflush, op, once); if (ret) { printf("\n Error in fill cache\n"); return -1; diff --git a/tools/testing/selftests/resctrl/resctrl.h b/tools/testing/selftests/resctrl/resctrl.h index 75bfa2b2746d..8748121345f3 100644 --- a/tools/testing/selftests/resctrl/resctrl.h +++ b/tools/testing/selftests/resctrl/resctrl.h @@ -97,8 +97,8 @@ int perf_event_open(struct perf_event_attr *hw_event, pid_t pid, int cpu, int group_fd, unsigned long flags); void free_buffer(void); int alloc_buffer(unsigned long long buf_size, int memflush); -int use_buffer(unsigned long long buf_size, int op, char *resctrl_val); -int run_fill_buf(unsigned long span, int memflush, int op, char *resctrl_val); +int use_buffer(unsigned long long buf_size, int op, bool once); +int run_fill_buf(unsigned long span, int memflush, int op, bool once); int resctrl_val(char **benchmark_cmd, struct resctrl_val_param *param); int mbm_bw_change(unsigned long span, int cpu_no, char *bw_report, char **benchmark_cmd); void tests_cleanup(void); diff --git a/tools/testing/selftests/resctrl/resctrl_tests.c b/tools/testing/selftests/resctrl/resctrl_tests.c index ef2977b5ecd4..6e710989f368 100644 --- a/tools/testing/selftests/resctrl/resctrl_tests.c +++ b/tools/testing/selftests/resctrl/resctrl_tests.c @@ -70,7 +70,7 @@ void tests_cleanup(void) cat_test_cleanup(); }
-static void run_mbm_test(bool has_ben, char **benchmark_cmd, unsigned long span, +static void run_mbm_test(char **benchmark_cmd, unsigned long span, int cpu_no, char *bw_report) { int res; @@ -88,8 +88,6 @@ static void run_mbm_test(bool has_ben, char **benchmark_cmd, unsigned long span, goto umount; }
- if (!has_ben) - sprintf(benchmark_cmd[4], "%s", MBA_STR); res = mbm_bw_change(span, cpu_no, bw_report, benchmark_cmd); ksft_test_result(!res, "MBM: bw change\n"); if ((get_vendor() == ARCH_INTEL) && res) @@ -124,7 +122,7 @@ static void run_mba_test(char **benchmark_cmd, unsigned long span, int cpu_no, umount_resctrlfs(); }
-static void run_cmt_test(bool has_ben, char **benchmark_cmd, int cpu_no) +static void run_cmt_test(char **benchmark_cmd, int cpu_no) { int res;
@@ -141,8 +139,6 @@ static void run_cmt_test(bool has_ben, char **benchmark_cmd, int cpu_no) goto umount; }
- if (!has_ben) - sprintf(benchmark_cmd[4], "%s", CMT_STR); res = cmt_resctrl_val(cpu_no, 5, benchmark_cmd); ksft_test_result(!res, "CMT: test\n"); if ((get_vendor() == ARCH_INTEL) && res) @@ -276,7 +272,7 @@ int main(int argc, char **argv) sprintf(benchmark_cmd[1], "%lu", span); strcpy(benchmark_cmd[2], "1"); strcpy(benchmark_cmd[3], "0"); - strcpy(benchmark_cmd[4], ""); + strcpy(benchmark_cmd[4], "false"); benchmark_cmd[5] = NULL; }
@@ -291,13 +287,13 @@ int main(int argc, char **argv) ksft_set_plan(tests ? : 4);
if (mbm_test) - run_mbm_test(has_ben, benchmark_cmd, span, cpu_no, bw_report); + run_mbm_test(benchmark_cmd, span, cpu_no, bw_report);
if (mba_test) run_mba_test(benchmark_cmd, span, cpu_no, bw_report);
if (cmt_test) - run_cmt_test(has_ben, benchmark_cmd, cpu_no); + run_cmt_test(benchmark_cmd, cpu_no);
if (cat_test) run_cat_test(cpu_no, no_of_bits); diff --git a/tools/testing/selftests/resctrl/resctrlfs.c b/tools/testing/selftests/resctrl/resctrlfs.c index 79e030065da8..7fef9068d7fd 100644 --- a/tools/testing/selftests/resctrl/resctrlfs.c +++ b/tools/testing/selftests/resctrl/resctrlfs.c @@ -298,7 +298,7 @@ void run_benchmark(int signum, siginfo_t *info, void *ucontext) int operation, ret, memflush; unsigned long span; char **benchmark_cmd; - char resctrl_val[64]; + bool once; FILE *fp;
benchmark_cmd = info->si_ptr; @@ -316,9 +316,14 @@ void run_benchmark(int signum, siginfo_t *info, void *ucontext) span = strtoul(benchmark_cmd[1], NULL, 10); memflush = atoi(benchmark_cmd[2]); operation = atoi(benchmark_cmd[3]); - sprintf(resctrl_val, "%s", benchmark_cmd[4]); + if (!strcmp(benchmark_cmd[4], "true")) + once = true; + else if (!strcmp(benchmark_cmd[4], "false")) + once = false; + else + PARENT_EXIT("Invalid once parameter");
- if (run_fill_buf(span, memflush, operation, resctrl_val)) + if (run_fill_buf(span, memflush, operation, once)) fprintf(stderr, "Error in running fill buffer\n"); } else { /* Execute specified benchmark */