1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
|
#!/bin/sh
# PCP QA Test No. 1284
# Check for Linux kernel waitio time "counters" going backwards
#
# Copyright (c) 2020 Ken McDonell. All Rights Reserved.
#
if [ $# -eq 0 ]
then
seq=`basename $0`
echo "QA output created by $seq"
else
# use $seq from caller, unless not set
[ -n "$seq" ] || seq=`basename $0`
echo "QA output created by `basename $0` $*"
fi
# get standard environment, filters and checks
. ./common.product
. ./common.filter
. ./common.check
[ $PCP_PLATFORM = linux ] || _notrun "Linux PMDA waitio testing"
which pmrep >/dev/null 2>&1 || _notrun "no pmrep executable"
_cleanup()
{
cd $here
$sudo rm -rf $tmp $tmp.*
}
status=0 # success is the default!
trap "_cleanup; exit \$status" 0 1 2 3 15
_filter()
{
tee -a $seq_full \
| $PCP_AWK_PROG '
/k.a.c.w.total/ { next }
/millisec/ { next }
/cpu/ { lab[1] = "all"; prior[1] = 0
for (i = 1; i <= NF; i++) {
lab[i+1] = $i
prior[i+1] = 0
}
next
}
{ for (i = 1; i <= NF; i++) {
if ($i < prior[i]) {
print NR ": " lab[i] " went backwards: prior: " prior[i] " this: " $i
}
prior[i] = $i
}
}'
}
# real QA test starts here
echo "Silence is golden ..."
pmrep -t 5msec -s 1000 -r -P 0 \
kernel.all.cpu.wait.total kernel.percpu.cpu.wait.total \
| _filter
# success, all done
exit
|
