OSADL QA Farm on Real-time of Mainline Linux

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

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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 376 highest latencies:

System rack7slot2.osadl.org (updated Tue Jul 21, 2026 00:44:07)
Delayed (victim)					Switcher (culprit)			Timestamp	CPU
PID	Prio	Total latency (µs)	T^(,W^*) latency (µs)	Cmd	PID	Prio	Cmd	Timestamp	CPU
1350770	99	88	73,12	cyclictest	1415702	-21	kworker/u4:7+events_unbound	22:02:31	0
1350770	99	87	79,6	cyclictest	1491170	-21	kworker/u4:12+events_unbound	23:12:43	0
1350770	99	79	71,6	cyclictest	1533538	-21	acpi	00:00:13	0
1350770	99	77	66,8	cyclictest	256	50	irq/23-42890000.ethernet	22:25:31	0
1350770	99	71	58,10	cyclictest	53	-21	kswapd0	23:20:11	0
1350771	99	68	36,30	cyclictest	1529781	-21	ntp_kernel_pll_	23:55:27	1
1350771	99	67	34,30	cyclictest	1365119	-21	aten2__	20:05:21	1
1350771	99	67	33,31	cyclictest	0	-21	swapper/1	23:50:39	1
1350770	99	67	59,6	cyclictest	1562224	-21	kworker/u4:3+events_unbound	00:32:59	0
1350770	99	67	56,7	cyclictest	0	-21	swapper/0	00:35:12	0
1350771	99	66	37,24	cyclictest	1376385	-21	systemd	20:47:19	1
1350771	99	65	30,30	cyclictest	0	-21	swapper/1	22:05:13	1
1350771	99	65	25,35	cyclictest	1387282	-21	ssh	21:15:38	1
1350771	99	64	2,12	cyclictest	1555760	-21	apt-get	00:25:12	1
1350770	99	64	55,6	cyclictest	1454554	-21	switchtime	22:30:41	0
1350770	99	64	49,9	cyclictest	1440424	-21	ssh	22:15:19	0
1350771	99	63	29,31	cyclictest	1373585	-21	threads	20:35:38	1
1350771	99	63	2,11	cyclictest	37	-21	kcompactd0	00:15:37	1
1350770	99	63	55,6	cyclictest	1401940	-21	kworker/u4:1+events_unbound	21:45:00	0
1350771	99	62	53,7	cyclictest	1451230	-21	kworker/u4:12+events_unbound	22:27:35	1
1350771	99	62	2,16	cyclictest	1471265	-21	ssh	22:50:14	1
1350771	99	62	2,14	cyclictest	1413614	-21	ssh	21:45:21	1
1350771	99	61	40,19	cyclictest	1423592	-21	unixbench_multi	21:55:43	1
1350771	99	61	32,27	cyclictest	1526718	-21	kworker/u4:5-rpciod	00:05:34	1
1350771	99	61	3,16	cyclictest	1400588	-21	ssh	21:30:27	1
1350771	99	61	30,28	cyclictest	0	-21	swapper/1	21:40:28	1
1350771	99	61	29,30	cyclictest	1551831	-21	gltestperf	00:20:22	1
1350771	99	61	24,32	cyclictest	0	-21	swapper/1	19:50:02	1
1350771	99	61	2,17	cyclictest	1533553	-21	apt-get	00:00:18	1
1350771	99	61	1,18	cyclictest	1440769	-21	ntpq	22:15:26	1
1350770	99	61	51,8	cyclictest	1526719	-21	kworker/u4:6+events_unbound	00:07:54	0
1350770	99	61	40,6	cyclictest	1473788	-21	kworker/u4:0+events_unbound	22:52:38	0
1350771	99	60	4,16	cyclictest	1480453	-21	ssh	23:00:21	1
1350771	99	60	25,31	cyclictest	0	-21	swapper/1	19:40:16	1
1350771	99	60	2,17	cyclictest	1352777	-21	ntpq	19:15:28	1
1350771	99	60	2,15	cyclictest	1445420	-21	ntpq	22:20:34	1
1350771	99	60	2,15	cyclictest	1427395	-21	ssh	22:00:25	1
1350771	99	60	21,36	cyclictest	0	-21	swapper/1	21:25:13	1
1350770	99	60	52,6	cyclictest	1354574	-21	kworker/u4:12+events_unbound	19:22:09	0
1350771	99	59	5,51	cyclictest	1516159	-21	fschecks_time	23:40:24	1
1350771	99	59	3,7	cyclictest	1494285	-21	ssh	23:15:35	1
1350771	99	59	3,6	cyclictest	1381834	-21	apt-get	21:10:12	1
1350771	99	59	3,14	cyclictest	1520142	-21	apt-get	23:45:13	1
1350771	99	59	29,28	cyclictest	0	-21	swapper/1	22:55:19	1
1350771	99	59	2,17	cyclictest	1459241	-21	ssh	22:35:41	1
1350770	99	59	50,6	cyclictest	1420214	-21	kworker/u4:8+events_unbound	21:57:32	0
1350771	99	58	39,13	cyclictest	1405736	-21	unixbench_singl	21:35:43	1
1350771	99	58	30,26	cyclictest	0	-21	swapper/1	23:20:22	1
1350771	99	58	27,27	cyclictest	0	-21	swapper/1	00:10:30	1
1350771	99	58	2,6	cyclictest	1454432	-21	ps	22:30:39	1
1350771	99	58	26,29	cyclictest	0	-21	swapper/1	00:30:20	1
1350771	99	58	2,16	cyclictest	1507385	-21	ssh	23:30:23	1
1350770	99	58	31,17	cyclictest	0	-21	swapper/0	21:45:12	0
1350771	99	57	49,6	cyclictest	1433770	-21	kworker/u4:8+events_unbound	22:12:33	1
1350771	99	57	3,8	cyclictest	1357938	-21	ntpq	19:35:30	1
1350771	99	57	3,8	cyclictest	1357938	-21	ntpq	19:35:30	1
1350771	99	57	31,23	cyclictest	0	-21	swapper/1	23:25:21	1
1350771	99	57	23,30	cyclictest	0	-21	swapper/1	23:05:37	1
1350771	99	57	22,32	cyclictest	1371609	-21	aten_r7power_vo	20:30:15	1
1350770	99	57	6,35	cyclictest	1436317	-21	ssh	22:10:26	0
1350770	99	57	48,7	cyclictest	1460266	-21	kworker/u4:1+events_unbound	22:41:46	0
1350771	99	56	6,9	cyclictest	1462378	-21	ssh	22:40:13	1
1350771	99	56	3,8	cyclictest	1378479	-21	ntpq	20:55:32	1
1350771	99	56	3,8	cyclictest	1355342	-21	ntpq	19:25:28	1
1350771	99	56	2,7	cyclictest	1512153	-21	ntpq	23:35:41	1
1350771	99	56	22,30	cyclictest	0	-21	swapper/1	22:45:22	1
1350771	99	56	1,8	cyclictest	1488994	-21	ssh	23:10:13	1
1350770	99	56	48,6	cyclictest	1380218	-21	kworker/u4:3+events_unbound	21:12:25	0
1350771	99	55	4,8	cyclictest	1391598	-21	ntpq	21:20:28	1
1350771	99	55	28,24	cyclictest	0	-21	swapper/1	20:50:17	1
1350771	99	55	26,26	cyclictest	0	-21	swapper/1	20:40:34	1
1350771	99	55	18,32	cyclictest	1363549	-21	munin-run	20:00:00	1
1350771	99	55	11,8	cyclictest	1364573	-21	find	20:00:37	1
1350771	99	55	1,14	cyclictest	1379802	-21	ntpq	21:00:35	1
1350770	99	55	9,41	cyclictest	1543229	-21	ssh	00:10:32	0
1350770	99	55	48,5	cyclictest	1357131	-21	kworker/u4:16+events_unbound	19:40:01	0
1350770	99	55	48,5	cyclictest	1357131	-21	kworker/u4:16+events_unbound	19:40:01	0
1350770	99	55	46,7	cyclictest	1551157	-21	latency_hist	00:20:02	0
1350771	99	54	3,11	cyclictest	1366357	-21	apt-get	20:10:15	1
1350771	99	54	22,29	cyclictest	0	-21	swapper/1	00:40:01	1
1350770	99	54	8,40	cyclictest	1405294	-21	sh	21:35:38	0
1350771	99	53	31,19	cyclictest	0	-21	swapper/1	20:25:16	1
1350771	99	53	2,7	cyclictest	1369530	-21	ntpq	20:20:30	1
1350771	99	53	25,25	cyclictest	1361920	-21	mailstats	19:50:37	1
1350771	99	53	2,14	cyclictest	1417751	-21	ssh	21:50:04	1
1350770	99	53	36,11	cyclictest	1399579	-21	modprobe	21:30:00	0
1350770	99	53	21,26	cyclictest	256	50	irq/23-42890000.ethernet	20:05:12	0
1350771	99	52	2,6	cyclictest	1368192	-21	ntpq	20:15:27	1
1350771	99	52	1,7	cyclictest	1356691	-21	ntpq	19:30:32	1
1350771	99	52	14,35	cyclictest	1353852	-21	fschecks_time	19:20:19	1
1350770	99	52	4,26	cyclictest	1517688	-21	kworker/u4:15+rpciod	23:50:26	0
1350770	99	52	41,6	cyclictest	1480407	-21	df_abs	23:00:20	0
1350770	99	52	40,7	cyclictest	53	-21	kswapd0	22:45:16	0
1350771	99	50	3,6	cyclictest	1351520	-21	ntpq	19:10:28	1
1350771	99	50	15,33	cyclictest	1380735	-21	fschecks_time	21:05:20	1
1350770	99	50	43,5	cyclictest	1429268	-21	kworker/u4:0+events_unbound	22:22:36	0
1350770	99	50	42,6	cyclictest	1371656	-21	/usr/sbin/munin	20:30:15	0
1350770	99	50	42,5	cyclictest	1516858	-21	sh	23:40:43	0
1350770	99	50	40,6	cyclictest	1502694	-21	/usr/sbin/munin	23:25:20	0
1350770	99	50	36,9	cyclictest	1421300	-21	ssh	21:53:55	0
1350770	99	49	42,5	cyclictest	1373519	-21	cat	20:35:38	0
1350770	99	49	41,6	cyclictest	1391600	-21	sh	21:20:28	0
1350770	99	49	41,6	cyclictest	1380217	-21	kworker/u4:1+events_unbound	21:17:01	0
1350770	99	49	40,6	cyclictest	1526717	-21	kworker/u4:4-rpciod	23:55:37	0
1350770	99	49	38,5	cyclictest	0	-21	swapper/0	22:55:17	0
1350770	99	49	25,20	cyclictest	0	-21	swapper/0	21:00:36	0
1350770	99	48	40,6	cyclictest	1549351	-21	kworker/u4:5+events_unbound	00:27:58	0
1350770	99	48	40,6	cyclictest	1375107	-21	kworker/u4:16+events_unbound	20:42:19	0
1350770	99	48	40,5	cyclictest	1371218	-21	unixbench_singl	20:25:38	0
1350770	99	48	38,8	cyclictest	1352020	-21	kworker/u4:0	19:15:01	0
1350771	99	47	1,10	cyclictest	1350879	-21	latency_hist	19:10:01	1
1350770	99	47	41,4	cyclictest	1399935	-21	aten2__	21:30:16	0
1350770	99	47	36,8	cyclictest	1355858	-21	kworker/u4:11-rpciod	19:40:16	0
1350770	99	47	36,7	cyclictest	1478324	-21	kworker/u4:13-rpciod	23:05:36	0
1350770	99	47	32,9	cyclictest	1431147	-21	ssh	22:05:09	0
1350770	99	46	38,6	cyclictest	1381565	-21	grep	21:10:01	0
1350770	99	46	38,6	cyclictest	1362441	-21	aten2__	19:55:15	0
1350770	99	46	37,7	cyclictest	1462141	-21	latency_hist	22:40:02	0
1350770	99	45	26,16	cyclictest	0	-21	swapper/0	20:05:01	0
1350770	99	44	37,5	cyclictest	1552655	-21	unixbench_singl	00:20:42	0
1350770	99	44	37,5	cyclictest	1366624	-21	fschecks_count	20:10:19	0
1350770	99	44	36,6	cyclictest	1359912	-21	aten2__	19:45:15	0
1350770	99	44	35,6	cyclictest	1376681	-21	aten_r7power_po	20:50:17	0
1350770	99	44	33,9	cyclictest	1521078	-21	open_files	23:45:38	0
1350770	99	44	33,7	cyclictest	0	-21	swapper/0	23:35:25	0
1350770	99	43	36,5	cyclictest	1361901	-21	sendmail_mailqu	19:50:37	0
1350770	99	43	35,6	cyclictest	1350769	-21	cyclictest	19:15:31	0
1350770	99	43	35,5	cyclictest	1375624	-21	fschecks_time	20:45:18	0
1350770	99	43	34,7	cyclictest	1493869	-21	gltestperf	23:15:21	0
1350770	99	42	34,5	cyclictest	1500227	-21	kworker/u4:0-rpciod	23:30:34	0
1350770	99	42	33,7	cyclictest	1356855	-21	switchtime	19:30:37	0
1350770	99	42	33,6	cyclictest	1368520	-21	timerwakeupswit	20:15:39	0
1350770	99	42	33,5	cyclictest	1378921	-21	kworker/u4:18	20:57:15	0
1350770	99	42	33,5	cyclictest	1355857	-21	kworker/u4:9-rpciod	19:30:01	0
1350770	99	40	30,6	cyclictest	0	-21	swapper/0	20:20:38	0
1350770	99	26	17,6	cyclictest	0	-21	swapper/0	19:10:00	0
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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