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 highest latencies:

System rack7slot2.osadl.org (updated Sat Apr 11, 2026 12:44:09)
Delayed (victim)					Switcher (culprit)			Timestamp	CPU
PID	Prio	Total latency (µs)	T^(,W^*) latency (µs)	Cmd	PID	Prio	Cmd	Timestamp	CPU
1591730	99	113	104,6	cyclictest	1730182	-21	kworker/u4:12+events_unbound	11:21:07	1
1591730	99	100	89,8	cyclictest	1605921	-21	kworker/u4:17+events_unbound	08:15:29	1
1591726	99	90	82,6	cyclictest	1735246	-21	kworker/u4:6+events_unbound	11:46:11	0
1591726	99	89	83,5	cyclictest	1588011	-21	kworker/u4:2+events_unbound	07:10:05	0
1591726	99	89	81,6	cyclictest	1783388	-21	kworker/u4:1+events_unbound	12:31:17	0
1591726	99	89	75,10	cyclictest	53	-21	kswapd0	11:35:11	0
1591726	99	87	79,6	cyclictest	1756768	-21	kworker/u4:7+events_unbound	12:01:12	0
1591726	99	85	77,6	cyclictest	1774562	-21	kworker/u4:3+events_unbound	12:16:16	0
1591726	99	83	75,6	cyclictest	1624848	-21	kworker/u4:9+events_unbound	09:15:47	0
1591730	99	81	74,5	cyclictest	1651902	-21	kworker/u4:0+events_unbound	09:50:53	1
1591730	99	81	70,5	cyclictest	0	-21	swapper/1	10:25:32	1
1591726	99	81	74,5	cyclictest	1617411	-21	kworker/u4:3+events_unbound	08:50:45	0
1591730	99	80	6,26	cyclictest	1628073	-21	ssh	09:15:27	1
1591726	99	79	64,7	cyclictest	0	-21	swapper/0	11:25:20	0
1591726	99	79	56,14	cyclictest	53	-21	kswapd0	11:55:08	0
1591726	99	79	56,14	cyclictest	53	-21	kswapd0	11:55:08	0
1591730	99	77	39,36	cyclictest	1768189	-21	fschecks_time	11:55:24	1
1591730	99	77	39,36	cyclictest	1768189	-21	fschecks_time	11:55:24	1
1591726	99	75	67,5	cyclictest	1676804	-21	sh	10:10:37	0
1591730	99	74	34,37	cyclictest	1680638	-21	fschecks_time	10:15:21	1
1591726	99	73	65,6	cyclictest	1604622	-21	kworker/u4:16+events_unbound	08:40:38	0
1591730	99	72	36,32	cyclictest	1608566	-21	latency_hist	08:15:01	1
1591730	99	70	57,9	cyclictest	0	-21	swapper/1	10:45:28	1
1591730	99	70	37,31	cyclictest	1728697	-21	/usr/sbin/munin	11:10:17	1
1591730	99	70	3,36	cyclictest	1640690	-21	apt-get	09:30:08	1
1591730	99	70	17,48	cyclictest	0	-21	swapper/1	11:15:11	1
1591730	99	69	41,25	cyclictest	0	-21	swapper/1	07:50:25	1
1591730	99	69	30,7	cyclictest	0	-21	swapper/1	11:00:36	1
1591730	99	68	61,5	cyclictest	1588013	-21	kworker/u4:5+events_unbound	07:35:00	1
1591730	99	68	35,31	cyclictest	1789345	-21	latency_hist	12:20:01	1
1591730	99	67	34,5	cyclictest	1781842	-21	sendmail_mailqu	12:10:37	1
1591730	99	67	33,5	cyclictest	1750480	-21	sed	11:35:16	1
1591730	99	67	32,4	cyclictest	0	-21	swapper/1	12:00:36	1
1591730	99	67	30,6	cyclictest	0	-21	swapper/1	11:05:24	1
1591730	99	67	27,9	cyclictest	0	-21	swapper/1	09:00:21	1
1591730	99	66	60,4	cyclictest	1708603	-21	kworker/u4:0+events_unbound	10:51:02	1
1591730	99	66	29,9	cyclictest	0	-21	swapper/1	08:30:22	1
1591730	99	65	34,29	cyclictest	1627110	-21	latency_hist	09:15:02	1
1591730	99	65	32,4	cyclictest	0	-21	swapper/1	09:35:41	1
1591730	99	65	30,6	cyclictest	0	-21	swapper/1	11:30:26	1
1591730	99	65	30,5	cyclictest	0	-21	swapper/1	07:55:42	1
1591730	99	65	29,6	cyclictest	0	-21	swapper/1	10:20:30	1
1591726	99	65	58,5	cyclictest	1592953	-21	kworker/u4:13+events_unbound	07:17:01	0
1591730	99	64	32,29	cyclictest	1735247	-21	kworker/u4:11-rpciod	11:25:16	1
1591730	99	64	31,4	cyclictest	1691463	-21	kworker/u4:6-rpciod	10:30:25	1
1591730	99	64	30,5	cyclictest	0	-21	swapper/1	12:25:27	1
1591730	99	64	26,9	cyclictest	0	-21	swapper/1	08:00:21	1
1591730	99	63	28,6	cyclictest	0	-21	swapper/1	08:40:37	1
1591726	99	63	55,6	cyclictest	1693432	-21	ssh	10:30:11	0
1591730	99	62	30,5	cyclictest	0	-21	swapper/1	10:00:32	1
1591730	99	61	29,8	cyclictest	1613940	-21	cpu	08:35:18	1
1591730	99	61	29,7	cyclictest	0	-21	swapper/1	11:45:22	1
1591726	99	60	48,5	cyclictest	1691460	-21	kworker/u4:0+events_unbound	10:35:59	0
1591726	99	60	38,19	cyclictest	0	-21	swapper/0	09:30:14	0
1591726	99	60	28,23	cyclictest	256	50	irq/23-42890000.ethernet	09:50:07	0
1591730	99	59	48,9	cyclictest	1798607	-21	fschecks_count	12:30:20	1
1591726	99	59	54,3	cyclictest	1691461	-21	kworker/u4:2+events_unbound	10:55:01	0
1591730	99	58	50,5	cyclictest	1636884	-21	uname	09:25:21	1
1591730	99	58	49,5	cyclictest	1671479	-21	sh	10:05:11	1
1591730	99	57	47,7	cyclictest	315	-21	systemd-journal	09:55:53	1
1591726	99	57	49,6	cyclictest	1761225	-21	kworker/u4:13-rpciod	11:50:40	0
1591726	99	57	49,6	cyclictest	1717489	-21	kworker/u4:3+events_unbound	11:01:01	0
1591726	99	57	47,7	cyclictest	1715361	-21	/usr/sbin/munin	10:55:15	0
1591726	99	55	50,4	cyclictest	1678046	-21	kworker/u4:3+events_unbound	10:41:00	0
1591726	99	55	48,6	cyclictest	1721933	-21	kworker/u4:4+events_unbound	11:08:59	0
1591726	99	54	46,6	cyclictest	1650117	-21	/usr/sbin/munin	09:40:23	0
1591726	99	54	37,6	cyclictest	1596802	-21	kworker/u4:15+events_unbound	07:27:00	0
1591730	99	53	44,6	cyclictest	1699100	-21	unixbench_singl	10:35:40	1
1591726	99	53	46,5	cyclictest	1733461	-21	sh	11:15:24	0
1591726	99	53	45,6	cyclictest	1765664	-21	kworker/u4:10+events_unbound	12:25:59	0
1591726	99	53	44,3	cyclictest	1599428	-21	kworker/u4:6+events_unbound	08:38:00	0
1591726	99	53	39,11	cyclictest	1681402	-21	timerwakeupswit	10:15:40	0
1591730	99	52	45,5	cyclictest	1650191	-21	ntpq	09:40:26	1
1591730	99	52	40,8	cyclictest	1611935	-21	ps	08:25:33	1
1591726	99	51	43,6	cyclictest	1673594	-21	kworker/u4:5+events_unbound	10:20:03	0
1591726	99	51	37,6	cyclictest	1665300	-21	kworker/u4:12+events_unbound	10:04:48	0
1591726	99	50	43,5	cyclictest	1577956	-21	kworker/u4:12+events_unbound	08:00:03	0
1591726	99	50	40,5	cyclictest	1673589	-21	kworker/u4:0+events_unbound	10:08:00	0
1591726	99	50	39,8	cyclictest	1741376	-21	latency_hist	11:25:02	0
1591730	99	49	42,5	cyclictest	1676663	-21	/usr/sbin/munin	10:10:30	1
1591730	99	49	39,8	cyclictest	1764614	-21	ssh	11:50:43	1
1591726	99	49	43,4	cyclictest	1636297	-21	/usr/sbin/munin	09:25:11	0
1591726	99	49	42,5	cyclictest	1654298	-21	/usr/sbin/munin	09:45:20	0
1591726	99	49	37,5	cyclictest	1372320	-21	kworker/u4:1+events_unbound	07:23:42	0
1591726	99	49	35,12	cyclictest	1729016	-21	/usr/sbin/munin	11:10:21	0
1591726	99	48	42,5	cyclictest	1598159	-21	kworker/u4:0+events_unbound	07:35:02	0
1591726	99	48	41,5	cyclictest	1755300	-21	gcc	11:40:24	0
1591726	99	48	39,7	cyclictest	1777011	-21	gltestperf	12:05:21	0
1591726	99	48	39,7	cyclictest	1616420	-21	aten_r7power_en	08:45:16	0
1591726	99	48	39,5	cyclictest	1603303	-21	awk	07:55:00	0
1591726	99	48	38,6	cyclictest	1609398	-21	sendmail_mailqu	08:15:36	0
1591730	99	47	40,5	cyclictest	1754737	-21	aten_r7power_po	11:40:15	1
1591730	99	47	40,5	cyclictest	1654696	-21	ntp_offset	09:45:32	1
1591730	99	47	39,5	cyclictest	1599208	-21	timerandwakeup	07:35:38	1
1591726	99	47	42,3	cyclictest	0	-21	swapper/0	09:15:01	0
1591726	99	47	41,4	cyclictest	0	-21	swapper/0	10:46:00	0
1591726	99	47	39,6	cyclictest	1645364	-21	df_abs	09:35:20	0
1591726	99	47	24,20	cyclictest	1604672	-21	run-parts	08:00:00	0
1591730	99	46	36,7	cyclictest	0	-21	swapper/1	12:05:31	1
1591730	99	46	26,17	cyclictest	27	1	ktimers/1	07:45:25	1
1591726	99	46	40,4	cyclictest	1782207	-21	/usr/sbin/munin	12:10:41	0
1591726	99	46	40,4	cyclictest	1746295	-21	fschecks_time	11:30:21	0
1591726	99	46	39,5	cyclictest	1666866	-21	latency_hist	10:00:01	0
1591730	99	45	38,5	cyclictest	1631964	-21	aten_r7power_en	09:20:17	1
1591730	99	45	35,7	cyclictest	1583090	-21	kworker/u4:16+events_unbound	07:40:17	1
1591730	99	45	34,9	cyclictest	1706383	-21	latency_hist	10:45:01	1
1591730	99	45	2,35	cyclictest	1803452	-21	ntp_states	12:35:34	1
1591726	99	45	39,5	cyclictest	1691460	-21	kworker/u4:0+events_unbound	10:27:42	0
1591726	99	45	37,6	cyclictest	1612592	-21	aten_r7power_po	08:30:17	0
1591726	99	45	37,6	cyclictest	1598159	-21	kworker/u4:0+events_unbound	08:20:03	0
1591726	99	45	32,5	cyclictest	1790798	-21	grep	12:20:40	0
1591726	99	45	24,19	cyclictest	0	-21	swapper/0	07:40:17	0
1591726	99	45	19,10	cyclictest	17	1	rcu_preempt	09:20:21	0
1591730	99	44	35,6	cyclictest	1610963	-21	unixbench_multi	08:20:39	1
1591730	99	44	29,13	cyclictest	0	-21	swapper/1	10:55:13	1
1591726	99	44	37,5	cyclictest	1791629	-21	kworker/u4:15+events_unbound	12:35:59	0
1591726	99	44	37,5	cyclictest	1621253	-21	kworker/u4:0+events_unbound	09:05:03	0
1591726	99	44	35,6	cyclictest	1601020	-21	aten_r7power_po	07:45:17	0
1591726	99	44	24,17	cyclictest	1619968	-21	cron	08:59:59	0
1591726	99	43	32,9	cyclictest	1617411	-21	kworker/u4:3+events_unbound	09:00:03	0
1591730	99	42	34,5	cyclictest	1588011	-21	kworker/u4:2-rpciod	07:10:37	1
1591726	99	42	7,25	cyclictest	1591725	-21	cyclictest	07:10:00	0
1591726	99	42	37,4	cyclictest	1596802	-21	kworker/u4:15+events_unbound	08:29:59	0
1591726	99	42	36,4	cyclictest	1606381	-21	fschecks_count	08:05:19	0
1591730	99	41	34,5	cyclictest	1789685	-21	aten_r7power_cu	12:20:18	1
1591730	99	41	33,5	cyclictest	1593507	-21	gltestperf	07:15:20	1
1591730	99	41	32,7	cyclictest	1618098	-21	kernelversion	08:50:22	1
1591726	99	41	32,6	cyclictest	0	-21	swapper/0	08:10:20	0
1591730	99	40	31,7	cyclictest	1622617	-21	latency_hist	09:10:01	1
1591730	99	40	31,6	cyclictest	0	-21	swapper/1	08:05:27	1
1591730	99	39	30,6	cyclictest	0	-21	swapper/1	07:30:02	1
1591726	99	39	12,7	cyclictest	17	1	rcu_preempt	07:30:34	0
1591730	99	38	32,4	cyclictest	1591725	-21	cyclictest	08:45:47	1
1591730	99	38	31,5	cyclictest	1577956	-21	kworker/u4:12+events_unbound	07:10:01	1
1591730	99	38	30,5	cyclictest	0	-21	swapper/1	08:55:30	1
1591730	99	37	30,5	cyclictest	1594818	-21	gltestperf	07:20:19	1
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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