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✏️ /usr/src/linux-headers-6.8.0-124/tools/testing/selftests/rcutorture/bin/kvm-recheck-rcuscale.sh

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#!/bin/bash
# SPDX-License-Identifier: GPL-2.0+
#
# Analyze a given results directory for rcuscale scalability measurements.
#
# Usage: kvm-recheck-rcuscale.sh resdir
#
# Copyright (C) IBM Corporation, 2016
#
# Authors: Paul E. McKenney <paulmck@linux.ibm.com>

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

if kvm-recheck-rcuscale-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 '
/-scale: .* gps: .* batches:/ {
	ngps = $9;
	nbatches = 1;
}

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

/rcu_scale: Grace-period kthread CPU time/ {
	cputime = $6;
}

END {
	newNR = asort(gptimes);
	if (newNR <= 0) {
		print "No rcuscale 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];
	if (cputime != "")
		cpustr = " CPU: " cputime;
	print "Grace periods: " ngps + 0 " Batches: " nbatches + 0 " Ratio: " ngps / nbatches cpustr;
	print "Computed from rcuscale printk output.";
}'

Batal

⬅ rcutorture 38 item

Nama	Tipe	Ukuran	Diubah	Perm	Aksi
⚙️ config2csv.sh	sh	1.8 KB	10/03/24 20:38	0755	✏️ ⬇
⚙️ configNR_CPUS.sh	sh	688 B	10/03/24 20:38	0755	✏️ ⬇
⚙️ config_override.sh	sh	823 B	10/03/24 20:38	0755	✏️ ⬇
⚙️ configcheck.sh	sh	1 KB	10/03/24 20:38	0755	✏️ ⬇
⚙️ configinit.sh	sh	1.3 KB	10/03/24 20:38	0755	✏️ ⬇
⚙️ console-badness.sh	sh	798 B	10/03/24 20:38	0755	✏️ ⬇
⚙️ cpus2use.sh	sh	829 B	10/03/24 20:38	0755	✏️ ⬇
⚙️ functions.sh	sh	8 KB	10/03/24 20:38	0755	✏️ ⬇
⚙️ jitter.sh	sh	2.2 KB	10/03/24 20:38	0755	✏️ ⬇
⚙️ jitterstart.sh	sh	994 B	10/03/24 20:38	0644	✏️ ⬇
⚙️ jitterstop.sh	sh	520 B	10/03/24 20:38	0644	✏️ ⬇
⚙️ kcsan-collapse.sh	sh	484 B	10/03/24 20:38	0755	✏️ ⬇
⚙️ kvm-again.sh	sh	4.8 KB	10/03/24 20:38	0755	✏️ ⬇
⚙️ kvm-assign-cpus.sh	sh	2 KB	10/03/24 20:38	0755	✏️ ⬇
⚙️ kvm-build.sh	sh	1.3 KB	10/03/24 20:38	0755	✏️ ⬇
⚙️ kvm-check-branches.sh	sh	3.2 KB	10/03/24 20:38	0755	✏️ ⬇
⚙️ kvm-end-run-stats.sh	sh	1.1 KB	10/03/24 20:38	0755	✏️ ⬇
⚙️ kvm-find-errors.sh	sh	1.9 KB	10/03/24 20:38	0755	✏️ ⬇
⚙️ kvm-get-cpus-script.sh	sh	2.3 KB	10/03/24 20:38	0755	✏️ ⬇
⚙️ kvm-recheck-lock.sh	sh	884 B	10/03/24 20:38	0755	✏️ ⬇
⚙️ kvm-recheck-rcu.sh	sh	2.1 KB	10/03/24 20:38	0755	✏️ ⬇
⚙️ kvm-recheck-rcuscale-ftrace.sh	sh	2.6 KB	10/03/24 20:38	0755	✏️ ⬇
⚙️ kvm-recheck-rcuscale.sh	sh	2 KB	10/03/24 20:38	0755	✏️ ⬇
⚙️ kvm-recheck-refscale.sh	sh	1.5 KB	10/03/24 20:38	0755	✏️ ⬇
⚙️ kvm-recheck-scf.sh	sh	930 B	10/03/24 20:38	0755	✏️ ⬇
⚙️ kvm-recheck.sh	sh	3.6 KB	10/03/24 20:38	0755	✏️ ⬇
⚙️ kvm-remote-noreap.sh	sh	629 B	10/03/24 20:38	0755	✏️ ⬇
⚙️ kvm-remote.sh	sh	8.1 KB	10/03/24 20:38	0755	✏️ ⬇
⚙️ kvm-test-1-run-batch.sh	sh	2.6 KB	10/03/24 20:38	0755	✏️ ⬇
⚙️ kvm-test-1-run-qemu.sh	sh	5.3 KB	10/03/24 20:38	0755	✏️ ⬇
⚙️ kvm-test-1-run.sh	sh	8.5 KB	10/03/24 20:38	0755	✏️ ⬇
⚙️ kvm-transform.sh	sh	3.2 KB	10/03/24 20:38	0755	✏️ ⬇
⚙️ kvm.sh	sh	19.2 KB	10/03/24 20:38	0755	✏️ ⬇
⚙️ mkinitrd.sh	sh	2.3 KB	10/03/24 20:38	0755	✏️ ⬇
⚙️ parse-build.sh	sh	1.1 KB	10/03/24 20:38	0755	✏️ ⬇
⚙️ parse-console.sh	sh	4.3 KB	10/03/24 20:38	0755	✏️ ⬇
⚙️ srcu_lockdep.sh	sh	1.8 KB	10/03/24 20:38	0755	✏️ ⬇
⚙️ torture.sh	sh	22.6 KB	26/05/26 09:55	0755	✏️ ⬇

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