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 792 highest latencies:

System rack7slot2.osadl.org (updated Wed Jun 17, 2026 12:44:08)
Delayed (victim)					Switcher (culprit)			Timestamp	CPU
PID	Prio	Total latency (µs)	T^(,W^*) latency (µs)	Cmd	PID	Prio	Cmd	Timestamp	CPU
848715	99	116	108,6	cyclictest	912910	-21	kworker/u4:2+events_unbound	09:49:00	1
848714	99	115	107,6	cyclictest	952280	-21	kworker/u4:6+events_unbound	11:09:16	0
848714	99	111	90,8	cyclictest	858888	-21	kworker/u4:15+events_unbound	08:20:01	0
848714	99	108	102,4	cyclictest	996201	-21	kworker/u4:4+events_unbound	11:39:23	0
848715	99	107	90,7	cyclictest	947846	-21	kworker/u4:1+events_unbound	10:29:08	1
848715	99	104	96,6	cyclictest	947846	-21	kworker/u4:1+events_unbound	10:34:08	1
848715	99	103	95,6	cyclictest	865267	-21	kworker/u4:9+events_unbound	08:43:47	1
848715	99	99	91,6	cyclictest	952280	-21	kworker/u4:6+events_unbound	11:19:17	1
848715	99	98	91,5	cyclictest	965665	-21	kworker/u4:5+events_unbound	10:54:13	1
848714	99	98	84,6	cyclictest	1044100	-21	kworker/u4:9+events_unbound	12:29:31	0
848714	99	97	84,3	cyclictest	965665	-21	kworker/u4:5+events_unbound	10:59:13	0
848714	99	96	87,6	cyclictest	1035860	-21	kworker/u4:3+events_unbound	12:14:30	0
848715	99	95	88,5	cyclictest	875488	-21	kworker/u4:11+events_unbound	08:53:50	1
848715	99	92	84,6	cyclictest	855052	-21	kworker/u4:6+events_unbound	08:08:44	1
848714	99	92	75,6	cyclictest	1031386	-21	kworker/u4:6+events_unbound	12:39:34	0
848714	99	90	82,6	cyclictest	886769	-21	kworker/u4:0+events_unbound	09:33:59	0
848715	99	87	79,6	cyclictest	860155	-21	kworker/u4:16+events_unbound	08:03:42	1
848715	99	87	74,5	cyclictest	1049256	-21	kworker/u4:0+events_unbound	12:24:30	1
848715	99	87	73,5	cyclictest	991696	-21	kworker/u4:19+events_unbound	11:29:20	1
848714	99	85	75,7	cyclictest	895064	-21	kworker/u4:12+events_unbound	09:40:00	0
848714	99	85	73,6	cyclictest	1022423	-21	kworker/u4:13+events_unbound	11:54:25	0
848714	99	85	69,6	cyclictest	947846	-21	kworker/u4:1+events_unbound	10:29:59	0
848714	99	84	78,4	cyclictest	843641	-21	kworker/u4:8+events_unbound	07:48:40	0
848715	99	82	74,6	cyclictest	849936	-21	kworker/u4:9+events_unbound	07:38:39	1
848715	99	81	63,7	cyclictest	895064	-21	kworker/u4:12+events_unbound	09:40:02	1
848714	99	80	74,4	cyclictest	991696	-21	kworker/u4:19+events_unbound	11:34:21	0
848714	99	80	73,5	cyclictest	865267	-21	kworker/u4:9+events_unbound	08:45:02	0
848714	99	80	44,29	cyclictest	53	-21	kswapd0	11:45:12	0
848714	99	80	44,29	cyclictest	53	-21	kswapd0	11:45:12	0
848715	99	79	71,6	cyclictest	846121	-21	kworker/u4:3+events_unbound	07:28:35	1
848715	99	79	65,5	cyclictest	943402	-21	kworker/u4:3+events_unbound	10:24:07	1
848715	99	78	70,6	cyclictest	863998	-21	kworker/u4:8+events_unbound	08:33:48	1
848715	99	78	63,6	cyclictest	846120	-21	kworker/u4:2+events_unbound	07:58:41	1
848714	99	78	71,5	cyclictest	996202	-21	kworker/u4:7+events_unbound	11:44:22	0
848714	99	78	69,7	cyclictest	1035859	-21	kworker/u4:1+events_unbound	12:19:31	0
848715	99	75	68,5	cyclictest	863998	-21	kworker/u4:8+events_unbound	08:13:46	1
848715	99	75	68,5	cyclictest	860161	-21	kworker/u4:19+events_unbound	08:17:00	1
848715	99	73	66,5	cyclictest	978410	-21	kworker/u4:15+events_unbound	11:45:04	1
848715	99	73	66,5	cyclictest	978410	-21	kworker/u4:15+events_unbound	11:45:03	1
848714	99	73	21,6	cyclictest	888415	-21	apt-get	09:20:10	0
848714	99	72	64,5	cyclictest	952278	-21	kworker/u4:3+events_unbound	10:39:10	0
848715	99	69	59,7	cyclictest	978407	-21	kworker/u4:12+events_unbound	11:04:12	1
848714	99	68	50,7	cyclictest	846120	-21	kworker/u4:2+events_unbound	07:13:32	0
848714	99	67	59,6	cyclictest	1031386	-21	kworker/u4:6+events_unbound	12:09:28	0
848715	99	65	57,5	cyclictest	633409	-21	kworker/u4:7+events_unbound	07:15:02	1
848714	99	65	52,9	cyclictest	0	-21	swapper/0	11:55:11	0
848714	99	64	56,6	cyclictest	1044753	-21	kworker/u4:11+events_unbound	12:34:33	0
848715	99	61	54,5	cyclictest	972557	-21	kernelversion	10:55:20	1
848715	99	61	54,5	cyclictest	961221	-21	kworker/u4:11+events_unbound	11:25:02	1
848715	99	61	54,5	cyclictest	1035859	-21	kworker/u4:1+events_unbound	12:25:03	1
848715	99	61	54,5	cyclictest	1011268	-21	modprobe	11:40:01	1
848714	99	61	54,5	cyclictest	876759	-21	kworker/u4:3+events_unbound	09:17:01	0
848714	99	61	45,6	cyclictest	921838	-21	kworker/u4:11+events_unbound	10:16:00	0
848715	99	60	45,6	cyclictest	926279	-21	kworker/u4:7+events_unbound	10:05:01	1
848714	99	60	29,11	cyclictest	985276	-21	ssh	11:10:21	0
848714	99	59	20,30	cyclictest	848712	-21	idleruntime-cro	07:09:59	0
848714	99	58	50,6	cyclictest	856321	-21	kworker/u4:7+events_unbound	07:43:41	0
848714	99	58	45,6	cyclictest	891250	-21	kworker/u4:6+events_unbound	09:27:01	0
848714	99	57	49,5	cyclictest	0	-21	swapper/0	09:45:15	0
848714	99	57	48,6	cyclictest	996201	-21	kworker/u4:4+events_unbound	11:24:19	0
848715	99	56	49,5	cyclictest	849936	-21	kworker/u4:9+events_unbound	07:40:02	1
848715	99	56	48,6	cyclictest	876760	-21	kworker/u4:5+events_unbound	09:15:03	1
848714	99	56	47,7	cyclictest	895061	-21	kworker/u4:7+events_unbound	09:42:59	0
848715	99	55	47,6	cyclictest	952280	-21	kworker/u4:6+events_unbound	11:10:03	1
848715	99	55	44,9	cyclictest	959831	-21	mailstats	10:40:36	1
848715	99	55	44,8	cyclictest	893154	-21	aten_r7power_cu	09:25:14	1
848715	99	55	44,8	cyclictest	852140	-21	ps	07:20:37	1
848715	99	55	41,5	cyclictest	996202	-21	kworker/u4:7+events_unbound	11:40:59	1
848714	99	54	38,14	cyclictest	932896	-21	fschecks_count	10:10:19	0
848714	99	53	45,6	cyclictest	963812	-21	/usr/sbin/munin	10:45:22	0
848714	99	53	45,6	cyclictest	1029340	-21	/usr/sbin/munin	12:00:16	0
848714	99	53	43,8	cyclictest	927910	-21	cron	10:05:01	0
848715	99	52	45,5	cyclictest	921839	-21	kworker/u4:12+events_unbound	10:14:00	1
848715	99	52	44,6	cyclictest	908454	-21	kworker/u4:1+events_unbound	09:52:59	1
848715	99	52	32,13	cyclictest	0	-21	swapper/1	11:05:36	1
848715	99	51	44,5	cyclictest	947846	-21	kworker/u4:1+events_unbound	10:37:00	1
848715	99	51	38,8	cyclictest	0	-21	swapper/1	10:05:24	1
848714	99	51	44,5	cyclictest	921839	-21	kworker/u4:12+events_unbound	09:59:03	0
848714	99	51	44,5	cyclictest	878058	-21	kworker/u4:10+events_unbound	09:08:54	0
848714	99	51	42,7	cyclictest	956724	-21	kworker/u4:2+events_unbound	10:50:14	0
848714	99	51	40,8	cyclictest	256	50	irq/23-42890000.ethernet	12:20:24	0
848714	99	51	24,7	cyclictest	947850	-21	kworker/u4:7+events_unbound	10:30:23	0
848715	99	50	42,6	cyclictest	898060	-21	/usr/sbin/munin	09:30:23	1
848715	99	50	42,6	cyclictest	889341	-21	/usr/sbin/munin	09:20:29	1
848715	99	50	41,6	cyclictest	0	-21	swapper/1	12:15:34	1
848715	99	50	39,8	cyclictest	1033879	-21	/usr/sbin/munin	12:05:19	1
848715	99	50	31,15	cyclictest	0	-21	swapper/1	09:10:34	1
848714	99	50	42,6	cyclictest	857617	-21	kworker/u4:10+events_unbound	07:53:41	0
848715	99	49	41,6	cyclictest	1000704	-21	kworker/u4:2+events_unbound	11:59:00	1
848715	99	49	38,7	cyclictest	879454	-21	diskmemload	11:30:30	1
848714	99	49	42,5	cyclictest	959114	-21	sshd	10:40:16	0
848714	99	49	41,6	cyclictest	848643	-21	kworker/u4:5+events_unbound	07:18:34	0
848714	99	49	38,5	cyclictest	852513	-21	kworker/u4:13+events_unbound	09:13:57	0
848714	99	49	25,7	cyclictest	943400	-21	kworker/u4:0+events_unbound	10:24:59	0
848715	99	48	42,5	cyclictest	1044753	-21	kworker/u4:11+events_unbound	12:31:44	1
848715	99	48	37,8	cyclictest	877043	-21	aten_r7power_cu	09:00:17	1
848714	99	48	40,6	cyclictest	998897	-21	/usr/sbin/munin	11:25:20	0
848715	99	47	40,5	cyclictest	937906	-21	sendmail_mailqu	10:15:36	1
848715	99	47	40,5	cyclictest	1060598	-21	gcc	12:35:26	1
848715	99	47	37,6	cyclictest	0	-21	swapper/1	11:50:14	1
848715	99	47	35,9	cyclictest	876810	-21	awk	09:00:00	1
848715	99	47	35,9	cyclictest	867861	-21	modprobe	08:25:00	1
848715	99	47	35,9	cyclictest	867861	-21	modprobe	08:24:59	1
848715	99	47	33,11	cyclictest	902408	-21	grep	09:35:27	1
848715	99	47	25,17	cyclictest	27	1	ktimers/1	12:00:27	1
848714	99	47	40,5	cyclictest	980524	-21	kworker/u4:2	11:05:01	0
848714	99	47	39,6	cyclictest	866808	-21	aten_r7power_cu	08:20:17	0
848714	99	47	39,6	cyclictest	866808	-21	aten_r7power_cu	08:20:16	0
848715	99	46	39,5	cyclictest	849125	-21	fschecks_count	07:10:18	1
848715	99	46	38,6	cyclictest	860169	-21	systemd	07:53:40	1
848715	99	46	36,8	cyclictest	874134	-21	unixbench_multi	08:45:41	1
848715	99	46	34,8	cyclictest	0	-21	swapper/1	10:45:24	1
848714	99	46	39,5	cyclictest	858888	-21	kworker/u4:15+events_unbound	09:03:54	0
848714	99	46	36,7	cyclictest	861735	-21	aten_r7power_en	08:00:15	0
848715	99	45	39,4	cyclictest	1039103	-21	timerandwakeup	12:10:38	1
848714	99	45	38,5	cyclictest	851837	-21	gltestperf	07:20:20	0
848714	99	45	37,6	cyclictest	870009	-21	grep	08:30:35	0
848714	99	45	36,7	cyclictest	874799	-21	gltestperf	08:50:19	0
848714	99	45	35,7	cyclictest	952278	-21	kworker/u4:3+rpciod	11:15:41	0
848714	99	45	23,20	cyclictest	855493	-21	fschecks_count	07:35:19	0
848715	99	44	37,5	cyclictest	920218	-21	ntpq	09:55:29	1
848714	99	44	37,5	cyclictest	876759	-21	kworker/u4:3+events_unbound	08:58:53	0
848714	99	44	37,5	cyclictest	855099	-21	awk	07:35:01	0
848714	99	44	36,6	cyclictest	870633	-21	aten_r7power_cu	08:35:14	0
848714	99	44	36,5	cyclictest	895061	-21	kworker/u4:7-rpciod	09:50:26	0
848715	99	43	36,5	cyclictest	855051	-21	kworker/u4:4+events_unbound	08:26:02	1
848715	99	43	34,5	cyclictest	869112	-21	kworker/u4:7+events_unbound	08:37:00	1
848714	99	43	36,5	cyclictest	860374	-21	aten2__	07:55:14	0
848714	99	42	33,6	cyclictest	0	-21	swapper/0	10:05:37	0
848715	99	41	34,5	cyclictest	854172	-21	sed	07:30:17	1
848714	99	41	33,6	cyclictest	871887	-21	aten2__	08:40:16	0
848714	99	41	32,6	cyclictest	868412	-21	gltestperf	08:25:21	0
848715	99	40	27,8	cyclictest	879261	-21	sort	09:05:42	1
848715	99	40	27,10	cyclictest	0	-21	swapper/1	07:45:18	1
848714	99	40	33,5	cyclictest	863188	-21	fschecks_count	08:05:20	0
848714	99	39	31,5	cyclictest	864489	-21	fschecks_time	08:10:19	0
848714	99	39	30,6	cyclictest	853118	-21	gltestperf	07:25:20	0
848715	99	34	25,6	cyclictest	0	-21	swapper/1	07:10:01	1
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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