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 all highest latencies:

System rack7slot2.osadl.org (updated Fri Jul 24, 2026 00:44:10)
Delayed (victim)					Switcher (culprit)			Timestamp	CPU
PID	Prio	Total latency (µs)	T^(,W^*) latency (µs)	Cmd	PID	Prio	Cmd	Timestamp	CPU
1354184	99	78	58,7	cyclictest	1469143	-21	kworker/u4:10+events_unbound	22:52:39	0
1354184	99	73	62,8	cyclictest	1486673	-21	kworker/u4:12+events_unbound	23:02:40	0
1354185	99	71	9,23	cyclictest	1520813	-21	ntpq	23:40:28	1
1354185	99	71	46,22	cyclictest	1372186	-21	latency_hist	20:20:00	1
1354185	99	71	37,31	cyclictest	1430430	-21	latency_hist	22:00:01	1
1354185	99	70	30,37	cyclictest	0	-21	swapper/1	23:50:08	1
1354185	99	70	29,38	cyclictest	1390616	-21	ssh	21:15:33	1
1354185	99	69	38,27	cyclictest	1364227	-21	timerandwakeup	19:45:41	1
1354185	99	69	28,37	cyclictest	0	-21	swapper/1	22:15:33	1
1354185	99	69	27,37	cyclictest	1479946	-21	latency_hist	22:55:01	1
1354185	99	68	35,31	cyclictest	1413493	-21	sh	21:40:40	1
1354185	99	68	33,33	cyclictest	1509117	-21	kworker/u4:6-events_power_efficient	23:36:31	1
1354185	99	67	38,26	cyclictest	1356770	-21	latency_hist	19:20:01	1
1354185	99	67	33,31	cyclictest	1484768	-21	aten_r7power_po	23:00:18	1
1354185	99	67	31,33	cyclictest	0	-21	swapper/1	00:25:35	1
1354185	99	67	29,36	cyclictest	0	-21	swapper/1	00:30:34	1
1354185	99	67	28,36	cyclictest	0	-21	swapper/1	21:30:25	1
1354184	99	67	53,8	cyclictest	1549025	-21	kworker/u4:3-rpciod	00:23:20	0
1354185	99	66	28,34	cyclictest	0	-21	swapper/1	22:40:43	1
1354185	99	65	52,7	cyclictest	0	-21	swapper/1	22:30:38	1
1354185	99	65	45,13	cyclictest	0	-21	swapper/1	23:05:14	1
1354185	99	65	28,34	cyclictest	0	-21	swapper/1	23:25:17	1
1354185	99	64	34,27	cyclictest	1385019	-21	latency_hist	21:10:00	1
1354185	99	64	34,27	cyclictest	1385019	-21	latency_hist	21:10:00	1
1354185	99	64	32,29	cyclictest	1542352	-21	aten_r7power_en	00:05:19	1
1354185	99	64	31,30	cyclictest	0	-21	swapper/1	22:05:22	1
1354185	99	64	30,31	cyclictest	1409022	-21	threads	21:35:38	1
1354185	99	64	29,32	cyclictest	0	-21	swapper/1	23:15:24	1
1354185	99	64	27,34	cyclictest	0	-21	swapper/1	00:10:40	1
1354185	99	63	35,25	cyclictest	1370607	-21	timerandwakeup	20:10:36	1
1354185	99	63	26,34	cyclictest	0	-21	swapper/1	21:25:12	1
1354185	99	63	26,34	cyclictest	0	-21	swapper/1	21:25:11	1
1354185	99	62	33,26	cyclictest	1380922	-21	timerandwakeup	20:50:37	1
1354185	99	62	30,29	cyclictest	0	-21	swapper/1	22:35:32	1
1354185	99	62	28,31	cyclictest	1559726	-21	cat	00:25:01	1
1354185	99	62	27,32	cyclictest	0	-21	swapper/1	21:45:40	1
1354185	99	62	26,6	cyclictest	1509116	-21	kworker/u4:5+rpciod	23:45:28	1
1354185	99	62	26,33	cyclictest	0	-21	swapper/1	22:00:39	1
1354185	99	61	30,29	cyclictest	0	-21	swapper/1	21:20:46	1
1354185	99	61	25,33	cyclictest	0	-21	swapper/1	23:20:29	1
1354185	99	61	24,34	cyclictest	0	-21	swapper/1	00:15:34	1
1354184	99	61	50,7	cyclictest	1354180	-21	cyclictest	23:44:26	0
1354185	99	60	29,27	cyclictest	0	-21	swapper/1	00:00:42	1
1354185	99	60	28,28	cyclictest	0	-21	swapper/1	20:00:01	1
1354185	99	60	25,5	cyclictest	0	-21	swapper/1	22:25:39	1
1354185	99	60	24,7	cyclictest	0	-21	swapper/1	22:10:26	1
1354185	99	60	22,8	cyclictest	0	-21	swapper/1	20:35:37	1
1354185	99	60	22,7	cyclictest	0	-21	swapper/1	22:45:23	1
1354185	99	60	22,7	cyclictest	0	-21	swapper/1	22:45:23	1
1354185	99	60	22,5	cyclictest	0	-21	swapper/1	20:45:02	1
1354184	99	60	40,18	cyclictest	1551139	-21	aten2__	00:15:18	0
1354185	99	59	31,25	cyclictest	0	-21	swapper/1	20:10:00	1
1354185	99	59	27,4	cyclictest	0	-21	swapper/1	19:50:42	1
1354185	99	59	27,4	cyclictest	0	-21	swapper/1	19:50:41	1
1354185	99	59	25,5	cyclictest	1354180	-21	cyclictest	23:55:56	1
1354185	99	59	25,4	cyclictest	0	-21	swapper/1	19:40:18	1
1354184	99	59	49,8	cyclictest	1414818	-21	kworker/u4:4-rpciod	21:57:34	0
1354185	99	58	29,26	cyclictest	0	-21	swapper/1	22:55:22	1
1354185	99	58	27,4	cyclictest	0	-21	swapper/1	22:20:39	1
1354185	99	58	23,32	cyclictest	1569524	-21	ntp_offset	00:35:32	1
1354185	99	58	21,6	cyclictest	0	-21	swapper/1	23:30:17	1
1354184	99	58	50,6	cyclictest	1528934	-21	ssh	23:50:11	0
1354184	99	58	49,7	cyclictest	1405574	-21	kworker/u4:0+events_unbound	21:47:34	0
1354184	99	58	49,7	cyclictest	1379870	-21	kworker/u4:11+events_unbound	20:52:29	0
1354184	99	58	49,6	cyclictest	1455477	-21	kworker/u4:5+events_unbound	22:30:03	0
1354184	99	58	33,23	cyclictest	1444529	-21	fschecks_time	22:15:23	0
1354185	99	57	27,4	cyclictest	1361901	-21	kworker/u4:6	19:39:59	1
1354185	99	57	25,5	cyclictest	1359425	-21	latency_hist	19:30:01	1
1354185	99	57	22,7	cyclictest	0	-21	swapper/1	23:10:34	1
1354184	99	57	46,7	cyclictest	1560250	-21	ssh	00:25:19	0
1354185	99	56	26,27	cyclictest	0	-21	swapper/1	21:50:42	1
1354185	99	56	25,6	cyclictest	1383710	-21	kworker/u4:1+rpciod	21:10:21	1
1354185	99	56	23,8	cyclictest	0	-21	swapper/1	21:00:36	1
1354184	99	56	48,6	cyclictest	1381137	-21	kworker/u4:13+events_unbound	21:12:31	0
1354184	99	56	47,6	cyclictest	1544526	-21	kworker/u4:4+events_unbound	00:10:00	0
1354184	99	56	47,6	cyclictest	1363184	-21	kworker/u4:0+events_unbound	20:02:23	0
1354184	99	55	47,6	cyclictest	1375947	-21	kworker/u4:1+events_unbound	20:37:25	0
1354184	99	55	45,7	cyclictest	1454050	-21	ssh	22:25:34	0
1354185	99	54	24,27	cyclictest	0	-21	swapper/1	19:10:20	1
1354184	99	54	45,6	cyclictest	1455479	-21	kworker/u4:7+events_unbound	22:42:39	0
1354184	99	54	41,10	cyclictest	1422487	-21	proc_pri	21:50:39	0
1354184	99	54	34,17	cyclictest	256	50	irq/23-42890000.ethernet	20:45:12	0
1354184	99	54	33,18	cyclictest	1365759	-21	idleruntime-cro	19:55:00	0
1354184	99	54	33,18	cyclictest	1365759	-21	idleruntime-cro	19:55:00	0
1354185	99	53	20,7	cyclictest	0	-21	swapper/1	19:30:28	1
1354184	99	53	45,6	cyclictest	1569145	-21	/usr/sbin/munin	00:35:21	0
1354184	99	53	44,7	cyclictest	1518156	-21	kworker/u4:9+events_unbound	23:37:45	0
1354184	99	53	44,7	cyclictest	1342835	-21	kworker/u4:14+events_unbound	20:27:25	0
1354184	99	53	44,6	cyclictest	1450915	-21	kworker/u4:3+events_unbound	22:22:36	0
1354184	99	52	45,5	cyclictest	1503235	-21	gcc	23:20:42	0
1354184	99	52	31,5	cyclictest	0	-21	swapper/0	19:15:00	0
1354184	99	51	44,4	cyclictest	0	-21	swapper/0	21:24:23	0
1354184	99	51	43,6	cyclictest	1535501	-21	kworker/u4:2+events_unbound	00:01:44	0
1354184	99	51	42,7	cyclictest	1381146	-21	kworker/u4:14+events_unbound	22:02:35	0
1354184	99	51	39,6	cyclictest	1549025	-21	kworker/u4:3-rpciod	00:12:33	0
1354185	99	50	43,5	cyclictest	1375987	-21	idleruntime-cro	20:34:59	1
1354184	99	50	42,6	cyclictest	1366999	-21	kworker/u4:12+events_unbound	20:22:24	0
1354184	99	50	42,6	cyclictest	1342834	-21	kworker/u4:13+events_unbound	19:42:21	0
1354184	99	50	41,6	cyclictest	1358023	-21	idleruntime-cro	19:25:01	0
1354184	99	50	32,15	cyclictest	1394185	-21	latency_hist	21:20:02	0
1354184	99	50	31,14	cyclictest	0	-21	swapper/0	00:30:29	0
1354184	99	49	42,5	cyclictest	1436109	-21	mailstats	22:05:39	0
1354184	99	49	41,6	cyclictest	1471324	-21	/usr/sbin/munin	22:45:17	0
1354184	99	49	41,6	cyclictest	1471324	-21	/usr/sbin/munin	22:45:17	0
1354184	99	49	26,20	cyclictest	1368752	-21	fschecks_count	20:05:19	0
1354184	99	48	41,5	cyclictest	1524845	-21	grep	23:45:19	0
1354184	99	48	41,5	cyclictest	1473730	-21	kworker/u4:0+events_unbound	23:30:01	0
1354184	99	48	40,5	cyclictest	1414818	-21	kworker/u4:4+events_unbound	21:45:01	0
1354184	99	48	38,8	cyclictest	1361181	-21	gltestperf	19:35:21	0
1354184	99	48	38,7	cyclictest	1370842	-21	cron	20:14:59	0
1354184	99	48	35,7	cyclictest	0	-21	swapper/0	22:10:32	0
1354184	99	48	33,11	cyclictest	256	50	irq/23-42890000.ethernet	19:25:11	0
1354184	99	48	27,16	cyclictest	0	-21	swapper/0	23:55:15	0
1354184	99	47	37,7	cyclictest	1355975	-21	gltestperf	19:15:20	0
1354184	99	47	28,16	cyclictest	0	-21	swapper/0	23:00:02	0
1354184	99	47	25,20	cyclictest	1493572	-21	aten_r7power_cu	23:10:17	0
1354185	99	46	39,5	cyclictest	1379110	-21	fschecks_time	20:45:25	1
1354185	99	46	38,5	cyclictest	1358219	-21	latency_hist	19:25:01	1
1354184	99	46	37,7	cyclictest	256	50	irq/23-42890000.ethernet	22:35:37	0
1354184	99	46	37,7	cyclictest	1507872	-21	/usr/sbin/munin	23:25:39	0
1354184	99	46	37,7	cyclictest	1404419	-21	sendmail_mailtr	21:30:38	0
1354184	99	45	38,5	cyclictest	1408709	-21	ssh	21:35:31	0
1354184	99	45	37,6	cyclictest	1069	-21	lldpd	20:58:37	0
1354184	99	45	33,10	cyclictest	1367055	-21	tr	19:59:59	0
1354184	99	45	30,12	cyclictest	1364357	-21	sed	19:45:41	0
1354184	99	44	36,6	cyclictest	1385030	-21	grep	21:10:00	0
1354184	99	44	36,6	cyclictest	1385030	-21	grep	21:09:59	0
1354184	99	44	33,8	cyclictest	1371422	-21	gltestperf	20:15:19	0
1354184	99	44	31,10	cyclictest	0	-21	swapper/0	21:30:00	0
1354184	99	44	31,10	cyclictest	0	-21	swapper/0	21:30:00	0
1354185	99	43	36,5	cyclictest	1373868	-21	fschecks_count	20:25:19	1
1354184	99	43	34,6	cyclictest	1382986	-21	gltestperf	21:00:20	0
1354184	99	43	23,4	cyclictest	0	-21	swapper/0	23:15:44	0
1354184	99	41	32,7	cyclictest	1359946	-21	gltestperf	19:30:18	0
1354184	99	41	32,6	cyclictest	0	-21	swapper/0	20:30:30	0
1354184	99	41	31,7	cyclictest	0	-21	swapper/0	23:05:17	0
1354185	99	40	30,7	cyclictest	0	-21	swapper/1	20:20:34	1
1354184	99	40	32,6	cyclictest	1377680	-21	fschecks_count	20:40:18	0
1354185	99	39	30,7	cyclictest	0	-21	swapper/1	20:55:38	1
1354185	99	38	26,9	cyclictest	0	-21	swapper/1	20:00:37	1
1354184	99	30	21,6	cyclictest	0	-21	swapper/0	19:10:01	0
1354185	99	28	21,5	cyclictest	1354191	-21	grep	19:10:01	1
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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