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 Thu Mar 12, 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
1452773	99	107	94,9	cyclictest	53	-21	kswapd0	00:00:13	0
1452773	99	96	88,5	cyclictest	53	-21	kswapd0	22:35:14	0
1452774	99	92	82,3	cyclictest	1648745	-21	kworker/u4:0+events_unbound	00:20:01	1
1452774	99	87	80,5	cyclictest	53	-21	kswapd0	23:43:05	1
1452774	99	86	78,6	cyclictest	1519387	-21	kworker/u4:0+events_unbound	21:50:43	1
1452774	99	86	77,7	cyclictest	1612168	-21	kworker/u4:9+events_unbound	00:24:34	1
1452774	99	86	77,6	cyclictest	1475901	-21	kworker/u4:9+events_unbound	20:55:32	1
1452774	99	83	59,7	cyclictest	1455269	-21	kworker/u4:10+events_unbound	19:45:20	1
1452774	99	81	72,6	cyclictest	1634758	-21	kworker/u4:3+events_unbound	23:58:52	1
1452774	99	77	69,6	cyclictest	1625433	-21	kworker/u4:15+events_unbound	23:47:11	1
1452773	99	77	37,15	cyclictest	1476119	-21	apt-get	20:40:10	0
1452773	99	76	63,9	cyclictest	53	-21	kswapd0	00:25:14	0
1452774	99	75	68,5	cyclictest	1575447	-21	kworker/u4:5+events_unbound	22:55:58	1
1452774	99	73	66,5	cyclictest	1528948	-21	kworker/u4:10+events_unbound	22:05:15	1
1452774	99	73	64,7	cyclictest	1477197	-21	kworker/u4:1+events_unbound	20:45:31	1
1452774	99	71	64,5	cyclictest	1533734	-21	kworker/u4:1+events_unbound	22:10:16	1
1452774	99	70	63,5	cyclictest	1465506	-21	kworker/u4:15+events_unbound	20:00:22	1
1452773	99	70	24,10	cyclictest	1522580	-21	ntpq	21:50:36	0
1452774	99	69	61,5	cyclictest	1477198	-21	kworker/u4:2+events_unbound	21:05:36	1
1452774	99	69	59,8	cyclictest	1466802	-21	kworker/u4:17+events_unbound	20:15:24	1
1452773	99	69	58,6	cyclictest	1577448	-21	ssh	22:50:14	0
1452773	99	69	34,6	cyclictest	1609578	-21	apt-get	23:25:12	0
1452773	99	69	28,14	cyclictest	1503629	-21	ntpq	21:30:30	0
1452774	99	68	61,5	cyclictest	53	-21	kswapd0	21:35:31	1
1452774	99	68	61,5	cyclictest	1634758	-21	kworker/u4:3+events_unbound	00:00:15	1
1452773	99	68	39,24	cyclictest	1669940	-21	ntpq	00:30:27	0
1452773	99	68	29,12	cyclictest	1674536	-21	ntpq	00:35:30	0
1452773	99	68	28,19	cyclictest	1623414	-21	aten_r7power_cu	23:40:15	0
1452773	99	68	27,14	cyclictest	1635732	-21	ssh	23:53:29	0
1452774	99	67	58,7	cyclictest	1653420	-21	kworker/u4:5+events_unbound	00:30:13	1
1452774	99	67	58,7	cyclictest	1462962	-21	kworker/u4:3+events_unbound	20:20:25	1
1452773	99	67	28,13	cyclictest	1513160	-21	ntpq	21:40:35	0
1452773	99	66	30,11	cyclictest	1569138	-21	ntpq	22:40:36	0
1452773	99	66	28,11	cyclictest	1463726	-21	ntpq	19:50:24	0
1452773	99	66	27,15	cyclictest	1590528	-21	ssh	23:04:25	0
1452773	99	66	27,10	cyclictest	1601944	-21	ssh	23:15:55	0
1452773	99	66	26,15	cyclictest	1509051	-21	ssh	21:35:51	0
1452773	99	66	26,14	cyclictest	1495696	-21	ssh	21:21:56	0
1452773	99	66	20,21	cyclictest	1470693	-21	gpgv	20:20:01	0
1452773	99	66	19,25	cyclictest	1659659	-21	ssh	00:19:56	0
1452774	99	65	3,50	cyclictest	1499011	-21	ssh	21:25:31	1
1452773	99	65	29,9	cyclictest	1607468	-21	ssh	23:22:18	0
1452773	99	65	28,13	cyclictest	1652626	-21	ssh	00:11:21	0
1452773	99	65	27,11	cyclictest	1584225	-21	ssh	22:56:56	0
1452773	99	65	26,15	cyclictest	1487140	-21	ssh	21:13:12	0
1452773	99	64	49,12	cyclictest	1517276	-21	ssh	21:45:19	0
1452773	99	64	49,12	cyclictest	1517276	-21	ssh	21:45:18	0
1452773	99	64	26,11	cyclictest	1561409	-21	ssh	22:32:09	0
1452773	99	64	25,12	cyclictest	1545814	-21	ntpq	22:15:24	0
1452773	99	64	24,20	cyclictest	1574180	-21	users	22:45:39	0
1452773	99	64	22,20	cyclictest	1466557	-21	switchtime	20:00:37	0
1452774	99	63	50,11	cyclictest	1509803	-21	kworker/u4:7+events_unbound	21:40:13	1
1452773	99	63	43,16	cyclictest	1470243	-21	ps	20:15:37	0
1452773	99	63	42,16	cyclictest	1638008	-21	ps	23:55:35	0
1452773	99	63	26,10	cyclictest	1538270	-21	ssh	22:07:19	0
1452773	99	63	25,13	cyclictest	1534740	-21	ssh	22:03:58	0
1452773	99	63	21,23	cyclictest	1646333	-21	basename	00:05:18	0
1452774	99	62	52,7	cyclictest	1558738	-21	cron	22:30:01	1
1452773	99	62	44,3	cyclictest	1627905	-21	apt-get	23:45:15	0
1452773	99	62	43,16	cyclictest	1459924	-21	ntpq	19:35:25	0
1452773	99	62	26,10	cyclictest	1482806	-21	df_inode	21:05:17	0
1452773	99	62	24,15	cyclictest	1472853	-21	ntp_states	20:25:34	0
1452773	99	62	24,15	cyclictest	1	-21	systemd	19:13:18	0
1452773	99	62	24,14	cyclictest	1620922	-21	ssh	23:36:55	0
1452773	99	62	23,18	cyclictest	1530776	-21	idleruntime-cro	22:00:00	0
1452773	99	62	23,15	cyclictest	1555027	-21	irqstats	22:25:22	0
1452773	99	61	45,12	cyclictest	1468263	-21	apt-get	20:10:13	0
1452773	99	61	39,15	cyclictest	1473545	-21	apt-get	20:30:24	0
1452773	99	61	36,10	cyclictest	1660754	-21	ntpq	00:20:25	0
1452773	99	61	27,7	cyclictest	1481859	-21	ntpq	21:00:27	0
1452773	99	61	24,14	cyclictest	1549535	-21	apt-get	22:20:04	0
1452773	99	61	24,13	cyclictest	1540379	-21	ssh	22:10:09	0
1452774	99	60	54,4	cyclictest	1556772	-21	kworker/u4:4+events_unbound	22:30:14	1
1452774	99	60	52,6	cyclictest	53	-21	kswapd0	22:35:31	1
1452773	99	60	55,3	cyclictest	1588798	-21	kworker/u4:9+events_unbound	23:06:00	0
1452773	99	60	27,11	cyclictest	1498893	-21	ntpq	21:25:28	0
1452773	99	60	24,11	cyclictest	1615639	-21	ssh	23:30:50	0
1452773	99	59	34,9	cyclictest	1596692	-21	ntpq	23:10:33	0
1452773	99	59	20,20	cyclictest	1455510	-21	sshd	19:20:13	0
1452774	99	58	51,5	cyclictest	1588790	-21	kworker/u4:0+events_unbound	23:15:02	1
1452774	99	58	49,7	cyclictest	1478475	-21	kworker/u4:16+events_unbound	21:00:34	1
1452774	99	58	49,6	cyclictest	53	-21	kswapd0	22:20:01	1
1452773	99	58	39,13	cyclictest	1466994	-21	apt-get	20:05:10	0
1452773	99	58	27,23	cyclictest	1489018	-21	/usr/sbin/munin	21:15:19	0
1452773	99	58	25,10	cyclictest	1475458	-21	ntpq	20:35:31	0
1452773	99	58	24,10	cyclictest	1461177	-21	ntpq	19:40:23	0
1452773	99	58	22,13	cyclictest	1477903	-21	memory	20:45:21	0
1452774	99	57	49,6	cyclictest	1473270	-21	kworker/u4:6+events_unbound	20:40:01	1
1452773	99	57	34,17	cyclictest	1479935	-21	apt-get	20:55:13	0
1452774	99	56	48,6	cyclictest	1612168	-21	kworker/u4:9+events_unbound	23:53:47	1
1452774	99	56	47,6	cyclictest	53	-21	kswapd0	23:30:01	1
1452774	99	56	42,11	cyclictest	1514610	-21	kworker/u4:6+events_unbound	21:45:15	1
1452774	99	56	42,11	cyclictest	1514610	-21	kworker/u4:6+events_unbound	21:45:15	1
1452773	99	56	39,13	cyclictest	1458667	-21	ntpq	19:30:28	0
1452773	99	56	39,12	cyclictest	1465013	-21	ntpq	19:55:25	0
1452773	99	56	37,15	cyclictest	1456774	-21	apt-get	19:25:12	0
1452774	99	55	47,6	cyclictest	1452772	-21	cyclictest	23:38:55	1
1452774	99	54	49,4	cyclictest	1481011	-21	kworker/u4:6+events_unbound	21:30:14	1
1452774	99	54	46,6	cyclictest	1482397	-21	kworker/u4:9+events_unbound	21:16:00	1
1452774	99	54	45,5	cyclictest	1648746	-21	kworker/u4:2+events_unbound	00:29:34	1
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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