On Thursday 24 April 2014 09:33 AM, Viresh Kumar wrote:
On 23 April 2014 17:11, Sanjay Singh Rawat <sanjay.ra...@linaro.org> wrote:
Signed-off-by: Sanjay Singh Rawat <sanjay.ra...@linaro.org>
---
- This will help in catching issue like https://lkml.org/lkml/2014/3/25/122
- Tested on my x86 dev m/c
Output:
running hotplug stress on cpu : cpu1
pass: cpu hotplug count = 200 duration = 16.98 seconds
running hotplug stress on cpu : cpu2
pass: cpu hotplug count = 200 duration = 16.36 seconds
running hotplug stress on cpu : cpu3
pass: cpu hotplug count = 200 duration = 15.05 seconds
- Issue: For a hotplug count of 500 the system just hangs. Need to
manually restart.
Is it safe to simply plugout the cpu? What will happend to the tasks
s/happend/happen
thanks, ack
in the cpu runqueue.
Why don't you want all above to be present in git log ? This is all
useful information and should go into logs.
right thanks, ack
On hotplug, all the tasks/works/timers/hrtimers are migrated to other
online CPUs..
hmm thanks, was thinking what could lead to the freeze then.
---
cpuhotplug/cpuhotplug_09.sh | 70 ++++++++++++++++++++++++++++++++++++++++++
cpuhotplug/cpuhotplug_09.txt | 1 +
2 files changed, 71 insertions(+)
create mode 100755 cpuhotplug/cpuhotplug_09.sh
create mode 100644 cpuhotplug/cpuhotplug_09.txt
diff --git a/cpuhotplug/cpuhotplug_09.sh b/cpuhotplug/cpuhotplug_09.sh
new file mode 100755
index 0000000..be0c91c
--- /dev/null
+++ b/cpuhotplug/cpuhotplug_09.sh
@@ -0,0 +1,70 @@
+#!/bin/bash
+#
+# PM-QA validation test suite for the power management on Linux
+#
+# Copyright (C) 2014, Linaro Limited.
+#
+# 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
USA.
+#
+# Contributors:
+# Sanjay Singh Rawat <sanjay.ra...@linaro.org>
+# - initial API and implementation
+#
+
+# URL :
https://wiki.linaro.org/WorkingGroups/PowerManagement/Resources/TestSuite/PmQaSpecification#cpuhotplug_09
+
+source ../include/functions.sh
+STRESS_COUNT=200
+
+cpuhotplug_stress() {
+ local cpu=$1
+ local dirpath=$CPU_PATH/$1
+ local state=
+ local start=
+ local end=
+ shift 1
+
+ if [ "$cpu" == "cpu0" ]; then
+ # skipping main cpu
+ return 0
+ fi
+
+ echo "running hotplug stress on cpu :" $cpu
+ start=$(echo $(awk '{print $1}' /proc/uptime))
+
+ for i in $(seq 1 $STRESS_COUNT);
+ do
+ set_offline $cpu
+ state=$(get_online $cpu)
+ if [ $state -ne 0 ]; then
+ echo "fail: cpu offline failed at " $i
+ return 1
+ fi
+
+ set_online $cpu
+ state=$(get_online $cpu)
+ if [ $state -ne 1 ]; then
+ echo "fail: cpu online failed at " $i
+ return 1
+ fi
+ done
+
+ end=$(echo $(awk '{print $1}' /proc/uptime))
+ echo "pass: cpu hotplug in/out count =" $i "duration =" $(echo "$end-$start" | bc)
"seconds"
+ return 0
+}
+
+for_each_cpu cpuhotplug_stress
+test_status_show
diff --git a/cpuhotplug/cpuhotplug_09.txt b/cpuhotplug/cpuhotplug_09.txt
new file mode 100644
index 0000000..5b0f8ac
--- /dev/null
+++ b/cpuhotplug/cpuhotplug_09.txt
@@ -0,0 +1 @@
+test to stress cpu hotplug feature
--
1.7.10.4
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--
sanjay
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