#!/bin/bash
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# SPDX-License-Identifier: GPL-2.0+
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#
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# Analyze a given results directory for refscale performance measurements.
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#
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# Usage: kvm-recheck-refscale.sh resdir
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#
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# Copyright (C) IBM Corporation, 2016
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#
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# Authors: Paul E. McKenney <paulmck@linux.ibm.com>
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i="$1"
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if test -d "$i" -a -r "$i"
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then
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:
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else
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echo Unreadable results directory: $i
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exit 1
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fi
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PATH=`pwd`/tools/testing/selftests/rcutorture/bin:$PATH; export PATH
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. functions.sh
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configfile=`echo $i | sed -e 's/^.*\///'`
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sed -e 's/^\[[^]]*]//' < $i/console.log | tr -d '\015' |
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awk -v configfile="$configfile" '
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/^[ ]*Runs Time\(ns\) *$/ {
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if (dataphase + 0 == 0) {
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dataphase = 1;
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# print configfile, $0;
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}
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next;
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}
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/[^ ]*[0-9][0-9]* [0-9][0-9]*\.[0-9][0-9]*$/ {
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if (dataphase == 1) {
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# print $0;
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readertimes[++n] = $2;
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sum += $2;
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}
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next;
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}
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{
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if (dataphase == 1)
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dataphase == 2;
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next;
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}
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END {
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print configfile " results:";
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newNR = asort(readertimes);
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if (newNR <= 0) {
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print "No refscale records found???"
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exit;
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}
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medianidx = int(newNR / 2);
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if (newNR == medianidx * 2)
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medianvalue = (readertimes[medianidx - 1] + readertimes[medianidx]) / 2;
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else
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medianvalue = readertimes[medianidx];
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points = "Points:";
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for (i = 1; i <= newNR; i++)
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points = points " " readertimes[i];
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print points;
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print "Average reader duration: " sum / newNR " nanoseconds";
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print "Minimum reader duration: " readertimes[1];
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print "Median reader duration: " medianvalue;
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print "Maximum reader duration: " readertimes[newNR];
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print "Computed from refscale printk output.";
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}'
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