1#! /bin/sh
2#
3# Copyright (c) International Business Machines  Corp., 2001
4# Author: Nageswara R Sastry <nasastry@in.ibm.com>
5#
6# This program is free software;  you can redistribute it and#or modify
7# it under the terms of the GNU General Public License as published by
8# the Free Software Foundation; either version 2 of the License, or
9# (at your option) any later version.
10#
11# This program is distributed in the hope that it will be useful, but
12# WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
13# or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
14# for more details.
15#
16# You should have received a copy of the GNU General Public License
17# along with this program;  if not, write to the Free Software Foundation,
18# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
19#
20
21export TCID="Power_Management_exclusive03"
22export TST_TOTAL=2
23
24. test.sh
25. pm_include.sh
26
27# Checking test environment
28check_kervel_arch
29
30tst_kvercmp 2 6 29; rc=$?
31if [ $rc -eq 2 ] ; then
32	max_sched_mc=2
33	max_sched_smt=2
34else
35	max_sched_mc=1
36	max_sched_smt=1
37fi
38
39tst_check_cmds python
40
41hyper_threaded=$(is_hyper_threaded)
42multi_socket=$(is_multi_socket)
43multi_core=$(is_multi_core)
44if [ $multi_socket -ne 0 -o $multi_core -ne 0 -o \
45	$hyper_threaded -ne 0 ]; then
46	tst_brkm TCONF "System is not a multi socket & multi core" \
47		"& hyper-threaded"
48fi
49
50# Verify threads consolidation stops when sched_mc &(/) sched_smt
51# is disabled.
52# Vary sched_mc from 1/2 to 0 when workload is running and
53# ensure that tasks do not consolidate to single package when
54# sched_mc is set to 0.
55RC=0
56for sched_mc in `seq 1  $max_sched_mc`; do
57	if pm_cpu_consolidation.py -v -c $sched_mc; then
58		echo "Test PASS: CPU consolidation test by varying" \
59			"sched_mc $sched_mc to 0"
60	else
61		RC=1
62		echo "Test FAIL: CPU consolidation test by varying" \
63			"sched_mc $sched_mc to 0"
64	fi
65done
66if [ $RC -eq 0 ]; then
67	tst_resm TPASS "CPU consolidation test by varying sched_mc"
68else
69	tst_resm TFAIL "CPU consolidation test by varying sched_mc"
70fi
71
72# Vary sched_mc & sched_smt from 1 to 0 & 2 to 0 when workload
73# is running and ensure that tasks do not consolidate to single
74# package when sched_mc is set to 0.
75RC=0
76for sched_mc in `seq 1  $max_sched_mc`; do
77	for sched_smt in `seq 1  $max_sched_smt`; do
78		if [ $sched_smt -eq $sched_mc ]; then
79			if pm_cpu_consolidation.py -v -c $sched_mc \
80				-t $sched_smt; then
81				echo "Test PASS: CPU consolidation test by" \
82					"varying sched_mc & sched_smt from" \
83					"$sched_mc to 0"
84			else
85				RC=1
86				echo "Test FAIL: CPU consolidation test by" \
87					"varying sched_mc & sched_smt from" \
88					"$sched_mc to 0"
89			fi
90		fi
91	done
92done
93if [ $RC -eq 0 ]; then
94	tst_resm TPASS "CPU consolidation test by varying" \
95		"sched_mc & sched_smt"
96else
97	tst_resm TFAIL "CPU consolidation test by varying" \
98		"sched_mc & sched_smt"
99fi
100
101tst_exit
102