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 Wed Jun 17, 2026 00:44:11)
Delayed (victim)					Switcher (culprit)			Timestamp	CPU
PID	Prio	Total latency (µs)	T^(,W^*) latency (µs)	Cmd	PID	Prio	Cmd	Timestamp	CPU
176971	99	109	101,6	cyclictest	175700	-21	kworker/u4:7+events_unbound	19:21:00	0
176972	99	108	100,5	cyclictest	338491	-21	kworker/u4:1+events_unbound	23:52:00	1
176971	99	106	91,6	cyclictest	277053	-21	kworker/u4:6+events_unbound	22:31:36	0
176971	99	105	96,7	cyclictest	176906	-21	kworker/u4:9+events_unbound	19:16:00	0
176971	99	103	94,7	cyclictest	281541	-21	kworker/u4:2+events_unbound	22:41:38	0
176972	99	102	92,7	cyclictest	272569	-21	kworker/u4:0+events_unbound	22:36:38	1
176971	99	101	92,6	cyclictest	356517	-21	kworker/u4:1+events_unbound	00:22:05	0
176971	99	99	91,6	cyclictest	299359	-21	kworker/u4:1+events_unbound	23:01:47	0
176971	99	99	80,11	cyclictest	206582	-21	kworker/u4:14+events_unbound	21:26:27	0
176971	99	97	89,6	cyclictest	4139074	-21	kworker/u4:2+events_unbound	19:11:00	0
176971	99	94	86,6	cyclictest	330141	-21	kworker/u4:2+events_unbound	23:41:55	0
176971	99	93	85,6	cyclictest	175699	-21	kworker/u4:6+events_unbound	19:26:01	0
176971	99	93	85,6	cyclictest	175699	-21	kworker/u4:6+events_unbound	19:26:00	0
176971	99	93	83,8	cyclictest	228343	-21	kworker/u4:4+events_unbound	22:06:32	0
176972	99	90	84,4	cyclictest	255302	-21	kworker/u4:13+events_unbound	22:26:34	1
176972	99	87	79,6	cyclictest	330141	-21	kworker/u4:2+events_unbound	23:57:01	1
176971	99	86	79,5	cyclictest	187327	-21	kworker/u4:17+events_unbound	20:01:08	0
176971	99	86	78,6	cyclictest	330141	-21	kworker/u4:2+events_unbound	00:02:01	0
176971	99	85	77,6	cyclictest	281541	-21	kworker/u4:2+events_unbound	22:51:44	0
176971	99	82	66,7	cyclictest	205285	-21	kworker/u4:10+events_unbound	21:36:27	0
176971	99	81	73,6	cyclictest	197638	-21	kworker/u4:6+events_unbound	21:01:23	0
176971	99	80	72,6	cyclictest	188598	-21	kworker/u4:19+events_unbound	20:10:01	0
176971	99	79	71,6	cyclictest	197638	-21	kworker/u4:6+events_unbound	20:45:01	0
176972	99	78	71,5	cyclictest	330142	-21	kworker/u4:4+events_unbound	23:31:53	1
176972	99	77	68,6	cyclictest	192521	-21	kworker/u4:5+events_unbound	20:25:02	1
176972	99	77	5,15	cyclictest	17	1	rcu_preempt	00:05:31	1
176971	99	77	49,26	cyclictest	53	-21	kswapd0	00:30:08	0
176971	99	76	69,5	cyclictest	192520	-21	kworker/u4:4+events_unbound	20:21:11	0
176971	99	76	67,6	cyclictest	366795	-21	kthreadd	00:09:28	0
176971	99	76	65,8	cyclictest	182395	-21	/usr/sbin/munin	19:30:12	0
176971	99	76	65,8	cyclictest	182395	-21	/usr/sbin/munin	19:30:11	0
176972	99	73	66,5	cyclictest	237343	-21	kworker/u4:9+events_unbound	21:51:30	1
176972	99	73	50,12	cyclictest	53	-21	kswapd0	22:50:11	1
176971	99	73	65,6	cyclictest	182136	-21	kworker/u4:3+events_unbound	19:51:07	0
176972	99	72	64,6	cyclictest	382813	-21	kworker/u4:9+events_unbound	00:32:07	1
176971	99	72	59,9	cyclictest	255041	-21	ssh	22:02:15	0
176972	99	69	62,5	cyclictest	187327	-21	kworker/u4:17+events_unbound	20:00:00	1
176971	99	69	61,6	cyclictest	196363	-21	kworker/u4:7+events_unbound	20:51:21	0
176971	99	69	61,6	cyclictest	184762	-21	kworker/u4:15+events_unbound	20:31:13	0
176972	99	68	61,5	cyclictest	347530	-21	kworker/u4:5+events_unbound	23:49:59	1
176971	99	68	61,5	cyclictest	236679	-21	kworker/u4:7+events_unbound	21:56:31	0
176971	99	66	56,6	cyclictest	0	-21	swapper/0	21:40:11	0
176971	99	66	47,15	cyclictest	272328	-21	ssh	22:21:42	0
176972	99	63	55,5	cyclictest	368134	-21	ld	00:10:26	1
176971	99	63	56,5	cyclictest	369990	-21	kworker/u4:4+events_unbound	00:15:00	0
176971	99	63	56,5	cyclictest	198907	-21	kworker/u4:8+events_unbound	20:56:23	0
176971	99	63	51,10	cyclictest	241838	-21	kworker/u4:0+events_unbound	21:50:02	0
176972	99	62	54,6	cyclictest	196363	-21	kworker/u4:7+events_unbound	20:36:16	1
176971	99	62	55,6	cyclictest	4139074	-21	kworker/u4:2+events_unbound	19:45:02	0
176971	99	62	55,5	cyclictest	4139074	-21	kworker/u4:2+events_unbound	19:46:07	0
176971	99	62	49,8	cyclictest	272570	-21	kworker/u4:1+events_unbound	22:35:58	0
176972	99	61	53,6	cyclictest	223807	-21	kworker/u4:2+events_unbound	21:30:05	1
176972	99	61	44,7	cyclictest	281541	-21	kworker/u4:2+events_unbound	22:41:58	1
176971	99	61	42,9	cyclictest	256	50	irq/23-42890000.ethernet	23:05:11	0
176972	99	60	40,7	cyclictest	186055	-21	kworker/u4:16+events_unbound	20:06:09	1
176971	99	60	45,7	cyclictest	281542	-21	kworker/u4:3+events_unbound	22:45:45	0
176972	99	59	7,40	cyclictest	324093	-21	sshd	23:20:36	1
176972	99	58	51,5	cyclictest	360024	-21	/usr/sbin/munin	00:00:44	1
176971	99	58	52,4	cyclictest	178287	-21	kworker/u4:4+events_unbound	19:40:00	0
176971	99	58	51,5	cyclictest	316606	-21	kworker/u4:6+events_unbound	23:35:08	0
176971	99	58	49,6	cyclictest	223806	-21	kworker/u4:1+events_unbound	21:45:08	0
176972	99	57	49,6	cyclictest	200174	-21	kworker/u4:11+events_unbound	20:41:16	1
176971	99	56	49,5	cyclictest	192521	-21	kworker/u4:5+events_unbound	20:17:01	0
176971	99	56	32,17	cyclictest	0	-21	swapper/0	19:55:12	0
176972	99	55	47,5	cyclictest	204014	-21	kworker/u4:3+events_unbound	22:00:00	1
176971	99	55	48,5	cyclictest	369989	-21	kworker/u4:2+events_unbound	00:25:03	0
176971	99	55	48,5	cyclictest	369989	-21	kworker/u4:2+events_unbound	00:25:02	0
176971	99	54	49,4	cyclictest	352036	-21	kworker/u4:7+events_unbound	23:59:59	0
176971	99	54	37,10	cyclictest	0	-21	swapper/0	22:27:13	0
176972	99	53	45,5	cyclictest	279315	-21	ssh	22:30:17	1
176971	99	53	22,20	cyclictest	256	50	irq/23-42890000.ethernet	21:30:11	0
176972	99	52	45,5	cyclictest	223806	-21	kworker/u4:1+events_unbound	21:46:31	1
176972	99	52	44,6	cyclictest	254565	-21	systemd	22:01:30	1
176972	99	52	44,6	cyclictest	204009	-21	kworker/u4:0+events_unbound	21:11:25	1
176971	99	52	44,6	cyclictest	254655	-21	kworker/u4:12+events_unbound	22:10:03	0
176971	99	52	40,7	cyclictest	247	50	irq/20-imx-lcdifv3-crtc.0	23:20:01	0
176971	99	51	45,5	cyclictest	387263	-21	kworker/u4:14+events_unbound	00:36:59	0
176971	99	51	44,5	cyclictest	213915	-21	unixbench-2d	21:15:41	0
176971	99	51	38,6	cyclictest	204014	-21	kworker/u4:3+events_unbound	21:05:04	0
176971	99	51	38,5	cyclictest	316606	-21	kworker/u4:6+events_unbound	23:24:59	0
176971	99	51	37,6	cyclictest	196363	-21	kworker/u4:7+events_unbound	20:35:04	0
176971	99	51	33,6	cyclictest	352036	-21	kworker/u4:7+events_unbound	23:52:18	0
176971	99	51	33,6	cyclictest	312108	-21	kworker/u4:7+events_unbound	23:30:55	0
176971	99	51	33,16	cyclictest	372189	-21	fschecks_count	00:15:20	0
176972	99	50	43,5	cyclictest	204014	-21	kworker/u4:3+events_unbound	21:06:24	1
176972	99	50	41,7	cyclictest	188598	-21	kworker/u4:19+events_unbound	20:05:02	1
176971	99	50	40,7	cyclictest	328595	-21	ssh	23:25:39	0
176972	99	49	38,9	cyclictest	270664	-21	grep	22:20:20	1
176971	99	49	18,19	cyclictest	0	-21	swapper/0	23:10:35	0
176972	99	48	41,5	cyclictest	305870	-21	diskmemload	23:00:22	1
176972	99	48	41,5	cyclictest	258965	-21	sh	22:06:31	1
176972	99	48	41,5	cyclictest	221376	-21	ls	21:25:00	1
176972	99	48	40,5	cyclictest	384860	-21	http	00:30:00	1
176972	99	48	40,5	cyclictest	384860	-21	http	00:29:59	1
176971	99	48	38,7	cyclictest	217672	-21	gltestperf	21:20:22	0
176972	99	47	7,28	cyclictest	341718	-21	ssh	23:40:31	1
176972	99	47	41,4	cyclictest	222363	-21	ldconfig	21:25:27	1
176972	99	47	41,4	cyclictest	200178	-21	kworker/u4:12+events_unbound	21:05:03	1
176972	99	47	40,5	cyclictest	393578	-21	sendmail	00:40:01	1
176972	99	47	40,5	cyclictest	180895	-21	munin-plugin-st	19:25:01	1
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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