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[LTP] [patch 4/6] script running the tasks
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From: Sudhir K. <sk...@li...> - 2008-12-15 07:32:57
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The patch adds a script which runs the load tasks and the latency check task.
The script creates setup for both the tests(with and without cpu controller)
Signed-off-by: Sudhir Kumar <sk...@li...>
Index: ltp-full-20081130/testcases/kernel/controllers/cpuctl/run_cpuctl_latency_test.sh
===================================================================
--- /dev/null
+++ ltp-full-20081130/testcases/kernel/controllers/cpuctl/run_cpuctl_latency_test.sh
@@ -0,0 +1,179 @@
+#!/bin/bash
+# usage ./runcpuctl_latency_test.sh
+
+###############################################################################
+# 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 #
+# #
+###############################################################################
+# Name Of File: run_cpuctl_test.sh #
+# #
+# Description: This file runs the setup for testing latency under heavy load #
+# when group scheduling is enabled #
+# After setup it runs diff test cases in diff setup. #
+# #
+# Test 01: Tests latency when no cgroup is mounted #
+# Test 02: Tests latency when cgroup is mounted #
+# #
+# #
+# Author: Sudhir Kumar <sk...@li...> #
+# #
+# History: #
+# #
+# DATE NAME EMAIL DESC #
+# #
+# 26/11/08 Sudhir Kumar <sk...@li...> Created this test #
+# #
+###############################################################################
+
+
+NUM_TASKS=100;
+NUM_GROUPS=2; #for default
+check_task="";
+declare -a pid;
+
+export TCID="cpuctl_latency_test";
+export TST_COUNT=1;
+export TST_TOTAL=2;
+
+. parameters.sh
+
+latency_cleanup()
+{
+ local i;
+
+ if [ -n "${pid[1]}" ]; then
+ for i in $(seq 1 $NUM_TASKS)
+ do
+ kill -s SIGUSR1 ${pid[$i]} 2>/dev/null;
+ done
+ fi
+
+ sleep 2;
+ if [ $TEST_NUM -eq 2 ]; then
+ # move any remaining task
+ sleep 2;
+ for task in `cat /dev/cpuctl/group*/tasks`; do
+ echo $task > /dev/cpuctl/tasks #2>/dev/null 1>&2;
+ done
+ rmdir /dev/cpuctl/group* #2> /dev/null
+ umount /dev/cpuctl #2> /dev/null
+ rmdir /dev/cpuctl #2> /dev/null
+ rm -f myfifo;
+ fi;
+ echo "Cleanup done for latency test $TEST_NUM"
+ echo
+}
+
+PWD=`pwd`
+
+################################
+# Start
+################################
+
+ TEST_NUM=$1;
+ if [ -z $TEST_NUM ]; then
+ echo "Invalid test no passed to test script"
+ echo "Exiting the test..."
+ exit 1;
+ fi;
+
+ cd $LTPROOT/testcases/bin/ #Bad idea????????
+
+ # Check if sources are compiled
+ if [ ! -f $cpuctl_latency_test ] || [ ! -f $cpuctl_latency_check_task ]
+ then
+ echo "TBROK The sources are not compiled...."
+ cd $PWD;
+ exit 1;
+ fi
+
+ # Keep the signal handler ready
+ trap 'echo "Doing cleanup"; latency_cleanup;' 0;
+
+ case $TEST_NUM in
+ "1") #without creating any groups
+ # Run the load creating tasks
+ echo TINFO "Running cpuctl Latency Test 1"
+ for i in $(seq 1 $NUM_TASKS)
+ do
+ # Execute the load tasks
+ ./cpuctl_latency_test $TEST_NUM &
+ if [ $? -ne 0 ]
+ then
+ echo "TBROK Failed to execute binary"
+ exit;
+ else
+ pid[$i]=$!;
+ fi
+ done
+
+ # Run the latency checking task
+ ./cpuctl_latency_check_task $TEST_NUM $$ &
+ if [ $? -ne 0 ]
+ then
+ echo "TBROK Failed to execute main binary"
+ exit;
+ else
+ check_task=$!;
+ fi;
+ ;;
+
+ "2") # With group scheduling
+ echo TINFO "Running cpuctl Latency Test 2"
+
+ NUM_CPUS=`cat /proc/cpuinfo | grep -w processor | wc -l`;
+ get_num_groups; # NUM_GROUPS is set now
+ do_setup;
+
+ for num in $(seq 1 $NUM_TASKS)
+ do
+ group=/dev/cpuctl/group_`expr $num % $NUM_GROUPS + 1`;
+ ./cpuctl_latency_test $TEST_NUM $group &
+ if [ $? -ne 0 ]
+ then
+ echo "TBROK Failed to execute binary"
+ exit;
+ else
+ pid[$num]=$!;
+ fi;
+ done;
+
+ # Run the latency checking task in any group
+ ./cpuctl_latency_check_task $TEST_NUM $$ $group &
+ if [ $? -ne 0 ]
+ then
+ echo "TBROK Failed to execute main binary";
+ exit;
+ else
+ check_task=$!;
+ fi;
+ ;;
+
+ * ) # wrong test num
+ echo TBROK "Invalid test number passed to the script"
+ exit;
+ ;;
+ esac;
+
+ wait $check_task;
+ RC=$?; # Return status of the task being waited
+ if [ $RC -ne 0 ]
+ then
+ echo "Task $check_task exited abnormaly with return value: $RC";
+ echo TBROK "Test could'nt execute for expected duration";
+ fi
+ cd $PWD;
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