#!/bin/bash
#
# Analyze a given results directory for rcuperf performance measurements.
#
# Usage: kvm-recheck-rcuperf.sh resdir
#
# 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, you can access it online at
# http://www.gnu.org/licenses/gpl-2.0.html.
#
# Copyright (C) IBM Corporation, 2016
#
# Authors: Paul E. McKenney <paulmck@linux.vnet.ibm.com>

i="$1"
if test -d $i
then
	:
else
	echo Unreadable results directory: $i
	exit 1
fi
PATH=`pwd`/tools/testing/selftests/rcutorture/bin:$PATH; export PATH
. tools/testing/selftests/rcutorture/bin/functions.sh

if kvm-recheck-rcuperf-ftrace.sh $i
then
	# ftrace data was successfully analyzed, call it good!
	exit 0
fi

configfile=`echo $i | sed -e 's/^.*\///'`

sed -e 's/^\[[^]]*]//' < $i/console.log |
awk '
/-perf: .* gps: .* batches:/ {
	ngps = $9;
	nbatches = $11;
}

/-perf: .*writer-duration/ {
	gptimes[++n] = $5 / 1000.;
	sum += $5 / 1000.;
}

END {
	newNR = asort(gptimes);
	if (newNR <= 0) {
		print "No rcuperf records found???"
		exit;
	}
	pct50 = int(newNR * 50 / 100);
	if (pct50 < 1)
		pct50 = 1;
	pct90 = int(newNR * 90 / 100);
	if (pct90 < 1)
		pct90 = 1;
	pct99 = int(newNR * 99 / 100);
	if (pct99 < 1)
		pct99 = 1;
	div = 10 ** int(log(gptimes[pct90]) / log(10) + .5) / 100;
	print "Histogram bucket size: " div;
	last = gptimes[1] - 10;
	count = 0;
	for (i = 1; i <= newNR; i++) {
		current = div * int(gptimes[i] / div);
		if (last == current) {
			count++;
		} else {
			if (count > 0)
				print last, count;
			count = 1;
			last = current;
		}
	}
	if (count > 0)
		print last, count;
	print "Average grace-period duration: " sum / newNR " microseconds";
	print "Minimum grace-period duration: " gptimes[1];
	print "50th percentile grace-period duration: " gptimes[pct50];
	print "90th percentile grace-period duration: " gptimes[pct90];
	print "99th percentile grace-period duration: " gptimes[pct99];
	print "Maximum grace-period duration: " gptimes[newNR];
	print "Grace periods: " ngps + 0 " Batches: " nbatches + 0 " Ratio: " ngps / nbatches;
	print "Computed from rcuperf printk output.";
}'
t>
<input class='txt' type='search' size='10' name='q' value=''/>
<input type='submit' value='search'/>
</form>
</td></tr></table>
<div class='path'>path: <a href='/cgit.cgi/linux/net-next.git/log/?h=nds-private-remove&amp;id=d71b7896886345c53ef1d84bda2bc758554f5d61'>root</a>/<a href='/cgit.cgi/linux/net-next.git/log/net?h=nds-private-remove&amp;id=d71b7896886345c53ef1d84bda2bc758554f5d61'>net</a>/<a href='/cgit.cgi/linux/net-next.git/log/net/caif?h=nds-private-remove&amp;id=d71b7896886345c53ef1d84bda2bc758554f5d61'>caif</a>/<a href='/cgit.cgi/linux/net-next.git/log/net/caif/cfserl.c?h=nds-private-remove&amp;id=d71b7896886345c53ef1d84bda2bc758554f5d61'>cfserl.c</a></div><div class='content'><table class='list nowrap'><tr class='nohover'><th class='left'>Age</th><th class='left'>Commit message (<a href='/cgit.cgi/linux/net-next.git/log/net/caif/cfserl.c?h=nds-private-remove&amp;id=d71b7896886345c53ef1d84bda2bc758554f5d61&amp;showmsg=1'>Expand</a>)</th><th class='left'>Author</th><th class='left'>Files</th><th class='left'>Lines</th></tr>
<option value='3' selected='selected'>3</option><option value='4'>4</option><option value='5'>5</option><option value='6'>6</option><option value='7'>7</option><option value='8'>8</option><option value='9'>9</option><option value='10'>10</option><option value='15'>15</option><option value='20'>20</option><option value='25'>25</option><option value='30'>30</option><option value='35'>35</option><option value='40'>40</option></select></td></tr><tr><td class='label'>space:</td><td class='ctrl'><select name='ignorews' onchange='this.form.submit();'><option value='0' selected='selected'>include</option><option value='1'>ignore</option></select></td></tr><tr><td class='label'>mode:</td><td class='ctrl'><select name='dt' onchange='this.form.submit();'><option value='0' selected='selected'>unified</option><option value='1'>ssdiff</option><option value='2'>stat only</option></select></td></tr><tr><td/><td class='ctrl'><noscript><input type='submit' value='reload'/></noscript></td></tr></table></form></div><table summary='commit info' class='commit-info'>
<tr><th>author</th><td>Mark Brown &lt;broonie@kernel.org&gt;</td><td class='right'>2016-11-04 12:16:38 -0600</td></tr>
<tr><th>committer</th><td>Mark Brown &lt;broonie@kernel.org&gt;</td><td class='right'>2016-11-04 12:16:38 -0600</td></tr>
<tr><th>commit</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/drivers/usb/phy/phy-mv-usb.c?id=cc9b94029e9ef51787af908e9856b1eed314bc00'>cc9b94029e9ef51787af908e9856b1eed314bc00</a> (<a href='/cgit.cgi/linux/net-next.git/patch/drivers/usb/phy/phy-mv-usb.c?id=cc9b94029e9ef51787af908e9856b1eed314bc00'>patch</a>)</td></tr>
<tr><th>tree</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/tree/?id=cc9b94029e9ef51787af908e9856b1eed314bc00'>9675310b89d0f6fb1f7bd9423f0638c4ee5226fd</a> /<a href='/cgit.cgi/linux/net-next.git/tree/drivers/usb/phy/phy-mv-usb.c?id=cc9b94029e9ef51787af908e9856b1eed314bc00'>drivers/usb/phy/phy-mv-usb.c</a></td></tr>
<tr><th>parent</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/drivers/usb/phy/phy-mv-usb.c?id=13bed58ce8748d430a26e353a09b89f9d613a71f'>13bed58ce8748d430a26e353a09b89f9d613a71f</a> (<a href='/cgit.cgi/linux/net-next.git/diff/drivers/usb/phy/phy-mv-usb.c?id=cc9b94029e9ef51787af908e9856b1eed314bc00&amp;id2=13bed58ce8748d430a26e353a09b89f9d613a71f'>diff</a>)</td></tr><tr><th>parent</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/drivers/usb/phy/phy-mv-usb.c?id=1b5b42216469b05ef4b5916cb40b127dfab1da88'>1b5b42216469b05ef4b5916cb40b127dfab1da88</a> (<a href='/cgit.cgi/linux/net-next.git/diff/drivers/usb/phy/phy-mv-usb.c?id=cc9b94029e9ef51787af908e9856b1eed314bc00&amp;id2=1b5b42216469b05ef4b5916cb40b127dfab1da88'>diff</a>)</td></tr></table>
<div class='commit-subject'>Merge branch 'topic/error' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator into regulator-fixed</div><div class='commit-msg'></div><div class='diffstat-header'><a href='/cgit.cgi/linux/net-next.git/diff/?id=cc9b94029e9ef51787af908e9856b1eed314bc00'>Diffstat</a> (limited to 'drivers/usb/phy/phy-mv-usb.c')</div><table summary='diffstat' class='diffstat'>