diff mbox series

[RESEND,v3,2/2] selftests/resctrl: Move run_benchmark() to a more fitting file

Message ID 7026d06ce116c4c5b5454c814cda69387c54e2a0.1693575451.git.maciej.wieczor-retman@intel.com (mailing list archive)
State New
Headers show
Series selftests/resctrl: Bug fix and optimization | expand

Commit Message

Maciej Wieczor-Retman Sept. 1, 2023, 1:42 p.m. UTC 
resctrlfs.c file contains mostly functions that interact in some way
with resctrl FS entries while functions inside resctrl_val.c deal with
measurements and benchmarking.

run_benchmark() is located in resctrlfs.c file even though it's
purpose is not interacting with the resctrl FS but to execute cache
checking logic.

Move run_benchmark() to resctrl_val.c just before resctrl_val() that
makes use of run_benchmark(). Make run_benchmark() static since it's
not used between multiple files anymore.

Remove return comment from kernel-doc since the function is type void.

Signed-off-by: Wieczor-Retman Maciej <maciej.wieczor-retman@intel.com>
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
---
Changelog v3:
- Make run_benchmark() static and remove it from the header. (Reinette)
- Remove return void kernel-doc comment. (Ilpo)
- Added Ilpo's reviewed-by tag.

 tools/testing/selftests/resctrl/resctrl.h     |  1 -
 tools/testing/selftests/resctrl/resctrl_val.c | 50 ++++++++++++++++++
 tools/testing/selftests/resctrl/resctrlfs.c   | 52 -------------------
 3 files changed, 50 insertions(+), 53 deletions(-)

Comments

Reinette Chatre Sept. 11, 2023, 4:59 p.m. UTC | #1 
Hi Maciej,

On 9/1/2023 6:42 AM, Wieczor-Retman Maciej wrote:
> resctrlfs.c file contains mostly functions that interact in some way

This can just be "resctrlfs.c contains ..." (no need for "file")

> with resctrl FS entries while functions inside resctrl_val.c deal with
> measurements and benchmarking.
> 
> run_benchmark() is located in resctrlfs.c file even though it's

same here

> purpose is not interacting with the resctrl FS but to execute cache
> checking logic.
> 
> Move run_benchmark() to resctrl_val.c just before resctrl_val() that
> makes use of run_benchmark(). Make run_benchmark() static since it's
> not used between multiple files anymore.
> 
> Remove return comment from kernel-doc since the function is type void.
> 
> Signed-off-by: Wieczor-Retman Maciej <maciej.wieczor-retman@intel.com>
> Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>

Reviewed-by: Reinette Chatre <reinette.chatre@intel.com>

Reinette
Maciej Wieczor-Retman Sept. 12, 2023, 6:34 a.m. UTC | #2 
Hi,

On 2023-09-11 at 09:59:31 -0700, Reinette Chatre wrote:
>Hi Maciej,
>
>On 9/1/2023 6:42 AM, Wieczor-Retman Maciej wrote:
>> resctrlfs.c file contains mostly functions that interact in some way
>
>This can just be "resctrlfs.c contains ..." (no need for "file")

Right, sorry, I'll correct this and the one below.

>> with resctrl FS entries while functions inside resctrl_val.c deal with
>> measurements and benchmarking.
>> 
>> run_benchmark() is located in resctrlfs.c file even though it's
>
>same here
>
>> purpose is not interacting with the resctrl FS but to execute cache
>> checking logic.
>> 
>> Move run_benchmark() to resctrl_val.c just before resctrl_val() that
>> makes use of run_benchmark(). Make run_benchmark() static since it's
>> not used between multiple files anymore.
>> 
>> Remove return comment from kernel-doc since the function is type void.
>> 
>> Signed-off-by: Wieczor-Retman Maciej <maciej.wieczor-retman@intel.com>
>> Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
>
>Reviewed-by: Reinette Chatre <reinette.chatre@intel.com>
>
>Reinette

Thank you for the review!
diff mbox series

Patch

diff --git a/tools/testing/selftests/resctrl/resctrl.h b/tools/testing/selftests/resctrl/resctrl.h
index 838d1a438f33..c6cca28810cd 100644
--- a/tools/testing/selftests/resctrl/resctrl.h
+++ b/tools/testing/selftests/resctrl/resctrl.h
@@ -89,7 +89,6 @@  int validate_bw_report_request(char *bw_report);
 bool validate_resctrl_feature_request(const char *resctrl_val);
 char *fgrep(FILE *inf, const char *str);
 int taskset_benchmark(pid_t bm_pid, int cpu_no);
-void run_benchmark(int signum, siginfo_t *info, void *ucontext);
 int write_schemata(char *ctrlgrp, char *schemata, int cpu_no,
 		   char *resctrl_val);
 int write_bm_pid_to_resctrl(pid_t bm_pid, char *ctrlgrp, char *mongrp,
diff --git a/tools/testing/selftests/resctrl/resctrl_val.c b/tools/testing/selftests/resctrl/resctrl_val.c
index f0f6c5f6e98b..764acf5efa14 100644
--- a/tools/testing/selftests/resctrl/resctrl_val.c
+++ b/tools/testing/selftests/resctrl/resctrl_val.c
@@ -621,6 +621,56 @@  measure_vals(struct resctrl_val_param *param, unsigned long *bw_resc_start)
 	return 0;
 }
 
+/*
+ * run_benchmark - Run a specified benchmark or fill_buf (default benchmark)
+ *		   in specified signal. Direct benchmark stdio to /dev/null.
+ * @signum:	signal number
+ * @info:	signal info
+ * @ucontext:	user context in signal handling
+ */
+static void run_benchmark(int signum, siginfo_t *info, void *ucontext)
+{
+	int operation, ret, memflush;
+	char **benchmark_cmd;
+	size_t span;
+	bool once;
+	FILE *fp;
+
+	benchmark_cmd = info->si_ptr;
+
+	/*
+	 * Direct stdio of child to /dev/null, so that only parent writes to
+	 * stdio (console)
+	 */
+	fp = freopen("/dev/null", "w", stdout);
+	if (!fp)
+		PARENT_EXIT("Unable to direct benchmark status to /dev/null");
+
+	if (strcmp(benchmark_cmd[0], "fill_buf") == 0) {
+		/* Execute default fill_buf benchmark */
+		span = strtoul(benchmark_cmd[1], NULL, 10);
+		memflush =  atoi(benchmark_cmd[2]);
+		operation = atoi(benchmark_cmd[3]);
+		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, once))
+			fprintf(stderr, "Error in running fill buffer\n");
+	} else {
+		/* Execute specified benchmark */
+		ret = execvp(benchmark_cmd[0], benchmark_cmd);
+		if (ret)
+			perror("wrong\n");
+	}
+
+	fclose(stdout);
+	PARENT_EXIT("Unable to run specified benchmark");
+}
+
 /*
  * resctrl_val:	execute benchmark and measure memory bandwidth on
  *			the benchmark
diff --git a/tools/testing/selftests/resctrl/resctrlfs.c b/tools/testing/selftests/resctrl/resctrlfs.c
index b0b14a5bcbf5..2f1ca184ac40 100644
--- a/tools/testing/selftests/resctrl/resctrlfs.c
+++ b/tools/testing/selftests/resctrl/resctrlfs.c
@@ -291,58 +291,6 @@  int taskset_benchmark(pid_t bm_pid, int cpu_no)
 	return 0;
 }
 
-/*
- * run_benchmark - Run a specified benchmark or fill_buf (default benchmark)
- *		   in specified signal. Direct benchmark stdio to /dev/null.
- * @signum:	signal number
- * @info:	signal info
- * @ucontext:	user context in signal handling
- *
- * Return: void
- */
-void run_benchmark(int signum, siginfo_t *info, void *ucontext)
-{
-	int operation, ret, memflush;
-	char **benchmark_cmd;
-	size_t span;
-	bool once;
-	FILE *fp;
-
-	benchmark_cmd = info->si_ptr;
-
-	/*
-	 * Direct stdio of child to /dev/null, so that only parent writes to
-	 * stdio (console)
-	 */
-	fp = freopen("/dev/null", "w", stdout);
-	if (!fp)
-		PARENT_EXIT("Unable to direct benchmark status to /dev/null");
-
-	if (strcmp(benchmark_cmd[0], "fill_buf") == 0) {
-		/* Execute default fill_buf benchmark */
-		span = strtoul(benchmark_cmd[1], NULL, 10);
-		memflush =  atoi(benchmark_cmd[2]);
-		operation = atoi(benchmark_cmd[3]);
-		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, once))
-			fprintf(stderr, "Error in running fill buffer\n");
-	} else {
-		/* Execute specified benchmark */
-		ret = execvp(benchmark_cmd[0], benchmark_cmd);
-		if (ret)
-			perror("wrong\n");
-	}
-
-	fclose(stdout);
-	PARENT_EXIT("Unable to run specified benchmark");
-}
-
 /*
  * create_grp - Create a group only if one doesn't exist
  * @grp_name:	Name of the group