selftests/resctrl: Remove unused measurement code

The MBM and MBA resctrl selftests run a benchmark during which
it takes measurements of read memory bandwidth via perf.
Code exists to support measurements of write memory bandwidth
but there exists no path with which this code can execute.

While code exists for write memory bandwidth measurement
there has not yet been a use case for it. Remove this unused code.
Rename relevant functions to include "read" so that it is clear
that it relates only to memory bandwidth reads, while renaming
the functions also add consistency by changing the "membw"
instances to more prevalent "mem_bw".

Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>

1 files changed, 2 insertions, 2 deletions

diff --git a/tools/testing/selftests/resctrl/mbm_test.c b/tools/testing/selftests/resctrl/mbm_test.c
index cf08ba5e314e..defa94293915 100644
--- a/tools/testing/selftests/resctrl/mbm_test.c
+++ b/tools/testing/selftests/resctrl/mbm_test.c
@@ -91,7 +91,7 @@ static int mbm_init(const struct resctrl_val_param *param, int domain_id)
 {
 	int ret;
 
-	ret = initialize_mem_bw_imc();
+	ret = initialize_read_mem_bw_imc();
 	if (ret)
 		return ret;
 
@@ -122,7 +122,7 @@ static int mbm_setup(const struct resctrl_test *test,
 static int mbm_measure(const struct user_params *uparams,
 		       struct resctrl_val_param *param, pid_t bm_pid)
 {
-	return measure_mem_bw(uparams, param, bm_pid, "reads");
+	return measure_read_mem_bw(uparams, param, bm_pid);
 }
 
 static void mbm_test_cleanup(void)