OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of system in rack #7, slot #2

Click here to display the system's profile data or here to proceed to next system.

Click on a legend element to toggle display of that core, ctrl-click inverts display, shift-click enables all.
Data to construct the above plot have been generated using the RT test utility cyclictest.

Total number of samples: 100 million
Resolution of latency scale: normal
Duration: 5 hours, 33 minutes
Compare latency of primary with shadow system

Characteristics of the 100 highest latencies:

System rack7slot2.osadl.org (updated Mon Jul 06, 2026 00:44:09)
Delayed (victim)					Switcher (culprit)			Timestamp	CPU
PID	Prio	Total latency (µs)	T^(,W^*) latency (µs)	Cmd	PID	Prio	Cmd	Timestamp	CPU
1342281	99	87	80,5	cyclictest	1494803	-21	kworker/u4:6+events_unbound	23:28:02	1
1342281	99	74	52,12	cyclictest	1434959	-21	modprobe	22:20:01	1
1342280	99	72	34,32	cyclictest	53	-21	kswapd0	23:50:08	0
1342280	99	69	59,7	cyclictest	1476915	-21	kworker/u4:0+events_unbound	23:18:00	0
1342281	99	67	59,5	cyclictest	1476915	-21	kworker/u4:0+events_unbound	23:20:02	1
1342280	99	66	55,9	cyclictest	1435641	-21	fschecks_count	22:20:19	0
1342281	99	65	55,7	cyclictest	1468002	-21	kworker/u4:12+events_unbound	23:12:59	1
1342281	99	63	55,6	cyclictest	1356380	-21	kworker/u4:11+events_unbound	20:05:00	1
1342281	99	62	54,5	cyclictest	0	-21	swapper/1	00:35:28	1
1342281	99	60	44,11	cyclictest	1351287	-21	modprobe	19:44:59	1
1342281	99	59	47,9	cyclictest	1417456	-21	cat	22:00:01	1
1342281	99	58	48,8	cyclictest	1352544	-21	kworker/u4:4+events_unbound	19:57:21	1
1342281	99	58	43,11	cyclictest	0	-21	swapper/1	23:00:15	1
1342280	99	58	37,19	cyclictest	1346604	-21	fschecks_count	19:25:23	0
1342280	99	58	37,12	cyclictest	1434957	-21	modprobe	22:20:00	0
1342280	99	58	36,19	cyclictest	1354275	-21	fschecks_count	19:55:18	0
1342281	99	57	50,5	cyclictest	1545666	-21	ntpq	00:25:27	1
1342281	99	57	49,6	cyclictest	1419008	-21	unixbench_multi	22:00:43	1
1342281	99	57	47,5	cyclictest	0	-21	swapper/1	22:05:39	1
1342281	99	57	43,10	cyclictest	0	-21	swapper/1	23:55:14	1
1342280	99	57	50,5	cyclictest	1342276	-21	cyclictest	21:37:40	0
1342280	99	56	49,5	cyclictest	1464216	-21	kworker/u4:5+events_unbound	22:52:55	0
1342280	99	56	47,7	cyclictest	1413919	-21	/usr/sbin/munin	21:55:23	0
1342280	99	56	46,7	cyclictest	1541702	-21	mailstats	00:20:44	0
1342280	99	55	46,7	cyclictest	1476051	-21	unixbench_multi	23:05:41	0
1342280	99	55	46,7	cyclictest	1384987	-21	kworker/u4:9+events_unbound	21:32:40	0
1342280	99	55	26,4	cyclictest	14	-21	ksoftirqd/0	21:25:28	0
1342281	99	54	32,17	cyclictest	1391410	-21	ssh	21:30:20	1
1342280	99	54	46,6	cyclictest	1383350	-21	/usr/sbin/munin	21:20:39	0
1342280	99	54	44,7	cyclictest	1425462	-21	ssh	22:08:53	0
1342280	99	54	41,7	cyclictest	1481378	-21	kworker/u4:1-rpciod	23:14:58	0
1342280	99	54	36,16	cyclictest	531	-21	in:imuxsock	22:41:19	0
1342281	99	53	46,5	cyclictest	1444796	-21	sed	22:30:29	1
1342281	99	53	46,5	cyclictest	1401391	-21	timerwakeupswit	21:40:45	1
1342281	99	53	46,5	cyclictest	1399873	-21	http	21:40:02	1
1342281	99	53	44,7	cyclictest	1373818	-21	fschecks_time	21:10:20	1
1342281	99	53	43,6	cyclictest	0	-21	swapper/1	00:20:16	1
1342281	99	53	42,9	cyclictest	1462666	-21	mailstats	22:50:38	1
1342281	99	53	30,18	cyclictest	1514096	-21	date	23:50:02	1
1342280	99	53	43,8	cyclictest	1503696	-21	kworker/u4:1+events_unbound	23:38:08	0
1342281	99	52	46,4	cyclictest	1342276	-21	cyclictest	23:33:02	1
1342281	99	52	41,9	cyclictest	1370511	-21	systemd	20:57:30	1
1342281	99	51	44,5	cyclictest	1387182	-21	fschecks_count	21:25:19	1
1342281	99	51	44,5	cyclictest	1349331	-21	gltestperf	19:35:21	1
1342281	99	51	42,6	cyclictest	0	-21	swapper/1	19:30:26	1
1342281	99	51	41,6	cyclictest	1342276	-21	cyclictest	23:50:10	1
1342281	99	51	39,9	cyclictest	1409173	-21	sed	21:50:18	1
1342281	99	51	39,9	cyclictest	1409173	-21	sed	21:50:17	1
1342281	99	51	30,16	cyclictest	1372616	-21	ntpq	21:05:29	1
1342281	99	51	17,11	cyclictest	0	-21	swapper/1	22:35:33	1
1342280	99	51	45,4	cyclictest	1508419	-21	sshd	23:43:08	0
1342280	99	51	24,4	cyclictest	14	-21	ksoftirqd/0	00:05:34	0
1342281	99	50	41,7	cyclictest	1435711	-21	fschecks_time	22:20:20	1
1342281	99	50	36,8	cyclictest	1367982	-21	modprobe	20:50:00	1
1342281	99	50	36,8	cyclictest	1367982	-21	modprobe	20:50:00	1
1342280	99	50	43,5	cyclictest	1448758	-21	fschecks_count	22:35:17	0
1342280	99	50	42,6	cyclictest	1343172	-21	sendmail_mailqu	19:10:35	0
1342280	99	50	42,5	cyclictest	1448177	-21	basename	22:35:00	0
1342280	99	50	41,7	cyclictest	1529834	-21	kworker/u4:9+events_unbound	00:13:22	0
1342281	99	49	42,5	cyclictest	1405890	-21	users	21:45:41	1
1342281	99	49	38,8	cyclictest	1532905	-21	grep	00:10:39	1
1342281	99	49	31,14	cyclictest	1475703	-21	ntpq	23:05:37	1
1342281	99	49	28,16	cyclictest	1378600	-21	ssh	21:15:26	1
1342280	99	49	40,7	cyclictest	317	-21	systemd-journal	23:02:56	0
1342280	99	49	39,7	cyclictest	1409172	-21	df	21:50:17	0
1342280	99	49	39,7	cyclictest	1409172	-21	df	21:50:17	0
1342280	99	49	26,20	cyclictest	0	-21	swapper/0	22:10:38	0
1342280	99	49	20,12	cyclictest	1492084	-21	munin-run	23:25:00	0
1342281	99	48	41,4	cyclictest	1550469	-21	timerandwakeup	00:30:38	1
1342281	99	48	40,5	cyclictest	1527210	-21	grep	00:05:01	1
1342281	99	48	40,5	cyclictest	1453697	-21	ld	22:40:32	1
1342281	99	48	39,6	cyclictest	1466399	-21	grep	22:55:21	1
1342281	99	48	36,10	cyclictest	1366727	-21	munin-run	20:45:00	1
1342281	99	48	33,11	cyclictest	1458085	-21	ssh	22:45:31	1
1342281	99	48	32,12	cyclictest	1536851	-21	ssh	00:15:23	1
1342281	99	48	25,18	cyclictest	1488002	-21	apt-get	23:20:13	1
1342280	99	48	42,3	cyclictest	0	-21	swapper/0	00:00:16	0
1342280	99	48	41,5	cyclictest	1437385	-21	kworker/u4:2+events_unbound	22:25:19	0
1342280	99	48	41,5	cyclictest	1364902	-21	ntp_kernel_pll_	20:35:27	0
1342280	99	48	41,5	cyclictest	1350950	-21	cat	19:40:39	0
1342280	99	48	39,7	cyclictest	1356201	-21	timerwakeupswit	20:00:37	0
1342280	99	48	2,23	cyclictest	1372029	-21	grep	21:05:15	0
1342281	99	47	38,4	cyclictest	0	-21	swapper/1	00:05:36	1
1342281	99	47	37,7	cyclictest	1323865	-21	kworker/u4:12+events_unbound	19:17:18	1
1342281	99	47	32,12	cyclictest	1382444	-21	ssh	21:20:16	1
1342281	99	47	29,14	cyclictest	1440625	-21	ps	22:25:39	1
1342281	99	47	25,12	cyclictest	1506197	-21	ntpq	23:40:25	1
1342280	99	47	40,5	cyclictest	1497767	-21	sendmail_mailst	23:30:39	0
1342280	99	47	40,5	cyclictest	1467265	-21	unixbench-2d	22:55:42	0
1342280	99	47	40,5	cyclictest	1350013	-21	munin-plugin-st	19:40:00	0
1342280	99	47	39,6	cyclictest	1545802	-21	gcc	00:25:33	0
1342280	99	47	39,5	cyclictest	1371477	-21	sendmail_mailqu	21:00:37	0
1342280	99	47	37,7	cyclictest	1359184	-21	/usr/sbin/munin	20:15:23	0
1342280	99	47	36,8	cyclictest	1554542	-21	ld	00:35:32	0
1342280	99	47	33,10	cyclictest	1342253	-21	munin-run	19:10:01	0
1342281	99	46	39,5	cyclictest	1502130	-21	mailstats	23:35:37	1
1342281	99	46	35,8	cyclictest	0	-21	swapper/1	22:10:23	1
1342280	99	46	39,5	cyclictest	1542525	-21	kworker/u4:13+events_unbound	00:35:01	0
1342280	99	46	37,6	cyclictest	1356904	-21	fschecks_time	20:05:18	0
1342280	99	46	23,19	cyclictest	1458082	-21	ntpq	22:45:31	0
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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This page was last modified on 2019-05-28 - 00:17