The patch adds a binary to be run as load on the machine.
Signed-off-by: Sudhir Kumar <[EMAIL PROTECTED]>
Index:
ltp-full-20081031/testcases/kernel/controllers/cpuctl/cpuctl_latency_test.c
===================================================================
--- /dev/null
+++ ltp-full-20081031/testcases/kernel/controllers/cpuctl/cpuctl_latency_test.c
@@ -0,0 +1,94 @@
+/******************************************************************************/
+/*
*/
+/* Copyright (c) International Business Machines Corp., 2008
*/
+/*
*/
+/* This program is free software; you can redistribute it and/or modify
*/
+/* it under the terms of the GNU General Public License as published by
*/
+/* the Free Software Foundation; either version 2 of the License, or
*/
+/* (at your option) any later version.
*/
+/*
*/
+/* This program is distributed in the hope that it will be useful,
*/
+/* but WITHOUT ANY WARRANTY; without even the implied warranty of
*/
+/* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
*/
+/* the GNU General Public License for more details.
*/
+/*
*/
+/* You should have received a copy of the GNU General Public License
*/
+/* along with this program; if not, write to the Free Software
*/
+/* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
+/*
*/
+/******************************************************************************/
+
+/******************************************************************************/
+/*
*/
+/* File: cpuctl_latency_test.c
*/
+/*
*/
+/* Description: This is a c program that runs a task which tries to keep cpu
*/
+/* busy in doing some calculations. The task will ne used to
*/
+/* check the latency under group scheduling.
*/
+/* The file is to be used by script
*/
+/*
*/
+/* Total Tests: 2
*/
+/*
*/
+/* Test Name: cpu_controller_latency_tests
*/
+/*
*/
+/* Test Assertion
*/
+/* Please refer to the file cpuctl_testplan.txt
*/
+/*
*/
+/* Author: Sudhir Kumar [EMAIL PROTECTED] */
+/*
*/
+/* History:
*/
+/* Created- 26/11/2008 -Sudhir Kumar <[EMAIL PROTECTED]> */
+/*
*/
+/******************************************************************************/
+
+#include <unistd.h>
+#include <math.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include "../libcontrollers/libcontrollers.h"
+
+
+extern int Tst_count;
+char *TCID = "cpu_controller_latency_tests";
+int TST_TOTAL = 2;
+
+
+int main(int argc, char *argv[])
+{
+ char mytaskfile[FILENAME_MAX];
+ int test_num;
+
+ if ((argc < 2) || (argc > 3)) {
+ printf("Invalid #args received from script The load tasks will"
+ " not run. So skipping the load creation....\n");
+ exit(1);
+ }
+
+ /* Migrate the task to its group if applicable */
+ test_num = atoi(argv[1]);
+ if (test_num < 0) {
+ printf("Invalid test number received from script."
+ " Skipping load creation ");
+ exit(1);
+ }
+
+ if (test_num == 2) {
+ strncpy(mytaskfile, argv[2], FILENAME_MAX);
+ strncat(mytaskfile, "/tasks",
+ FILENAME_MAX - strlen(mytaskfile) - 1);
+ write_to_file(mytaskfile, "a", getpid());
+ }
+
+ /*
+ * Need to run some cpu intensive task. Not sure if it is the best
+ * workload I can run?
+ */
+ double f = 27409.345; /*just a float number for sqrt*/
+
+ while (1)
+ f = sqrt(f * f);
+
+ return 0;
+}
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