1 #!/bin/bash
2 # SPDX-License-Identifier: GPL-2.0+
3 #
4 # Analyze a given results directory for refscale performance measurements.
5 #
6 # Usage: kvm-recheck-refscale.sh resdir
7 #
8 # Copyright (C) IBM Corporation, 2016
9 #
10 # Authors: Paul E. McKenney <paulmck@linux.ibm.com>
11
12 i="$1"
13 if test -d "$i" -a -r "$i"
14 then
15 :
16 else
17 echo Unreadable results directory: $i
18 exit 1
19 fi
20 PATH=`pwd`/tools/testing/selftests/rcutorture/bin:$PATH; export PATH
21 . functions.sh
22
23 configfile=`echo $i | sed -e 's/^.*\///'`
24
25 sed -e 's/^\[[^]]*]//' < $i/console.log | tr -d '\015' |
26 awk -v configfile="$configfile" '
27 /^[ ]*Runs Time\(ns\) *$/ {
28 if (dataphase + 0 == 0) {
29 dataphase = 1;
30 # print configfile, $0;
31 }
32 next;
33 }
34
35 /[^ ]*[0-9][0-9]* [0-9][0-9]*\.[0-9][0-9]*$/ {
36 if (dataphase == 1) {
37 # print $0;
38 readertimes[++n] = $2;
39 sum += $2;
40 }
41 next;
42 }
43
44 {
45 if (dataphase == 1)
46 dataphase == 2;
47 next;
48 }
49
50 END {
51 print configfile " results:";
52 newNR = asort(readertimes);
53 if (newNR <= 0) {
54 print "No refscale records found???"
55 exit;
56 }
57 medianidx = int(newNR / 2);
58 if (newNR == medianidx * 2)
59 medianvalue = (readertimes[medianidx - 1] + readertimes[medianidx]) / 2;
60 else
61 medianvalue = readertimes[medianidx];
62 points = "Points:";
63 for (i = 1; i <= newNR; i++)
64 points = points " " readertimes[i];
65 print points;
66 print "Average reader duration: " sum / newNR " nanoseconds";
67 print "Minimum reader duration: " readertimes[1];
68 print "Median reader duration: " medianvalue;
69 print "Maximum reader duration: " readertimes[newNR];
70 print "Computed from refscale printk output.";
71 }'
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