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 376 highest latencies:

System rack7slot2.osadl.org (updated Mon Jun 01, 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
432616	99	112	106,4	cyclictest	451930	-21	kworker/u4:1+events_unbound	08:45:41	1
432616	99	104	84,7	cyclictest	422663	-21	kworker/u4:5+events_unbound	07:10:08	1
432616	99	101	91,8	cyclictest	441527	-21	kworker/u4:1+events_unbound	07:45:14	1
432616	99	100	93,5	cyclictest	580648	-21	kworker/u4:0+events_unbound	11:46:09	1
432616	99	95	88,5	cyclictest	422660	-21	kworker/u4:0+events_unbound	07:35:12	1
432616	99	95	88,5	cyclictest	422660	-21	kworker/u4:0+events_unbound	07:35:11	1
432616	99	94	86,6	cyclictest	430112	-21	kworker/u4:9+events_unbound	08:20:34	1
432615	99	90	83,5	cyclictest	435113	-21	kworker/u4:16+events_unbound	07:25:10	0
432615	99	82	71,9	cyclictest	458480	-21	kworker/u4:11+events_unbound	09:00:02	0
432616	99	79	70,6	cyclictest	540498	-21	kworker/u4:6+events_unbound	10:50:58	1
432616	99	78	73,4	cyclictest	527771	-21	kworker/u4:0+events_unbound	10:25:52	1
432616	99	77	69,6	cyclictest	506127	-21	kworker/u4:2+events_unbound	10:05:50	1
432616	99	76	68,6	cyclictest	466510	-21	kworker/u4:7+events_unbound	09:35:47	1
432616	99	74	67,5	cyclictest	462321	-21	kworker/u4:3+events_unbound	10:00:48	1
432616	99	74	66,5	cyclictest	458480	-21	kworker/u4:11+events_unbound	09:00:45	1
432616	99	74	56,6	cyclictest	536696	-21	kworker/u4:5+events_unbound	10:35:55	1
432616	99	73	66,5	cyclictest	446636	-21	kworker/u4:12+events_unbound	08:20:02	1
432616	99	73	53,17	cyclictest	0	-21	swapper/1	11:30:31	1
432616	99	72	66,4	cyclictest	442795	-21	kworker/u4:6+events_unbound	08:10:00	1
432616	99	72	66,4	cyclictest	442795	-21	kworker/u4:6+events_unbound	08:10:00	1
432615	99	72	65,5	cyclictest	628860	-21	kworker/u4:7+events_unbound	12:21:10	0
432616	99	71	63,6	cyclictest	567260	-21	kworker/u4:5+events_unbound	11:26:05	1
432616	99	70	65,4	cyclictest	441527	-21	kworker/u4:1+events_unbound	07:55:00	1
432615	99	70	61,7	cyclictest	538397	-21	apt-get	10:35:10	0
432615	99	70	58,8	cyclictest	514408	-21	kworker/u4:7+events_unbound	10:45:57	0
432616	99	69	62,5	cyclictest	458480	-21	kworker/u4:11+events_unbound	08:50:41	1
432616	99	69	62,5	cyclictest	453203	-21	kworker/u4:6+events_unbound	08:30:03	1
432615	99	68	56,10	cyclictest	53	-21	kswapd0	09:20:21	0
432615	99	65	53,9	cyclictest	53	-21	kswapd0	11:45:18	0
432616	99	63	56,5	cyclictest	0	-21	swapper/1	11:40:35	1
432615	99	63	32,27	cyclictest	0	-21	swapper/0	10:25:00	0
432616	99	62	53,7	cyclictest	475532	-21	kworker/u4:5+events_unbound	09:25:01	1
432615	99	62	53,7	cyclictest	446636	-21	kworker/u4:12-rpciod	08:20:22	0
432615	99	62	52,7	cyclictest	556027	-21	latency_hist	10:55:01	0
432616	99	61	54,5	cyclictest	615508	-21	kworker/u4:12+events_unbound	12:05:59	1
432616	99	61	50,7	cyclictest	0	-21	swapper/1	12:00:14	1
432615	99	61	52,7	cyclictest	517934	-21	/usr/sbin/munin	10:10:36	0
432616	99	60	55,3	cyclictest	459752	-21	kworker/u4:15+events_unbound	08:55:44	1
432616	99	60	52,6	cyclictest	430112	-21	kworker/u4:9+events_unbound	08:40:40	1
432616	99	60	52,6	cyclictest	0	-21	swapper/1	12:25:14	1
432616	99	60	52,6	cyclictest	0	-21	swapper/1	11:10:28	1
432616	99	60	47,6	cyclictest	606555	-21	kworker/u4:5+events_unbound	11:59:45	1
432615	99	60	44,13	cyclictest	595978	-21	fschecks_time	11:40:20	0
432616	99	59	41,6	cyclictest	514410	-21	kworker/u4:12+events_unbound	10:20:44	1
432615	99	59	44,13	cyclictest	644817	-21	processes	12:35:36	0
432616	99	57	41,6	cyclictest	518886	-21	kworker/u4:14+events_unbound	10:17:59	1
432616	99	57	40,7	cyclictest	606554	-21	kworker/u4:3+events_unbound	11:55:00	1
432615	99	57	45,7	cyclictest	0	-21	swapper/0	09:35:00	0
432615	99	57	12,39	cyclictest	256	50	irq/23-42890000.ethernet	08:45:11	0
432616	99	56	50,4	cyclictest	646020	-21	kworker/u4:11+events_unbound	12:38:01	1
432616	99	56	36,8	cyclictest	623774	-21	kworker/u4:2+events_unbound	12:12:59	1
432615	99	56	42,10	cyclictest	490598	-21	df	09:40:16	0
432615	99	56	41,11	cyclictest	530275	-21	fschecks_count	10:25:20	0
432615	99	56	38,16	cyclictest	435153	-21	sh	07:20:01	0
432615	99	56	21,22	cyclictest	0	-21	swapper/0	12:00:33	0
432616	99	55	50,4	cyclictest	430112	-21	kworker/u4:9+events_unbound	08:05:01	1
432616	99	55	49,4	cyclictest	459752	-21	kworker/u4:15+events_unbound	09:16:00	1
432616	99	55	47,6	cyclictest	578184	-21	acpi	11:20:12	1
432616	99	55	39,8	cyclictest	451930	-21	kworker/u4:1+events_unbound	09:14:59	1
432615	99	55	45,7	cyclictest	497174	-21	kworker/u4:9+events_unbound	09:50:00	0
432615	99	55	43,8	cyclictest	592145	-21	/usr/sbin/munin	11:35:36	0
432615	99	55	42,9	cyclictest	453391	-21	ls	08:30:03	0
432615	99	55	32,19	cyclictest	256	50	irq/23-42890000.ethernet	08:30:09	0
432615	99	55	31,21	cyclictest	460186	-21	fschecks_count	08:55:20	0
432615	99	54	47,5	cyclictest	492689	-21	kworker/u4:0+events_unbound	10:15:03	0
432615	99	54	46,6	cyclictest	570973	-21	systemd	11:11:03	0
432616	99	53	46,5	cyclictest	628859	-21	kworker/u4:4+events_unbound	12:31:08	1
432616	99	53	45,6	cyclictest	532234	-21	kworker/u4:3+events_unbound	10:30:52	1
432616	99	53	45,5	cyclictest	482069	-21	gltestperf	09:30:20	1
432616	99	53	35,6	cyclictest	584378	-21	kworker/u4:2+events_unbound	11:35:15	1
432615	99	53	47,4	cyclictest	463590	-21	kworker/u4:6+events_unbound	09:08:00	0
432615	99	53	41,7	cyclictest	0	-21	swapper/0	10:55:29	0
432616	99	52	44,6	cyclictest	494474	-21	latency_hist	09:45:01	1
432615	99	52	45,5	cyclictest	575373	-21	systemd	11:16:03	0
432615	99	52	38,8	cyclictest	0	-21	swapper/0	12:15:30	0
432616	99	51	43,5	cyclictest	0	-21	swapper/1	12:15:15	1
432616	99	51	34,6	cyclictest	536695	-21	kworker/u4:4+events_unbound	10:43:59	1
432615	99	51	7,41	cyclictest	0	-21	swapper/0	08:05:12	0
432615	99	51	7,41	cyclictest	0	-21	swapper/0	08:05:12	0
432615	99	51	38,8	cyclictest	53	-21	kswapd0	09:50:07	0
432615	99	51	32,16	cyclictest	622405	-21	sed	12:10:20	0
432615	99	51	21,15	cyclictest	14	-21	ksoftirqd/0	11:25:35	0
432615	99	51	18,21	cyclictest	0	-21	swapper/0	12:25:34	0
432616	99	50	42,6	cyclictest	551547	-21	modprobe	10:50:00	1
432616	99	50	42,6	cyclictest	496177	-21	sd-accept	09:45:46	1
432616	99	50	25,7	cyclictest	454558	-21	kworker/u4:10+events_unbound	09:05:36	1
432615	99	50	5,37	cyclictest	534641	-21	grep	10:30:20	0
432615	99	50	43,5	cyclictest	0	-21	swapper/0	11:50:37	0
432615	99	49	42,5	cyclictest	617536	-21	apt-get	12:05:12	0
432615	99	49	42,5	cyclictest	609785	-21	cat	11:55:40	0
432615	99	49	41,5	cyclictest	512894	-21	ssh	10:05:20	0
432615	99	49	40,6	cyclictest	504263	-21	ntpq	09:55:27	0
432615	99	49	17,19	cyclictest	14	-21	ksoftirqd/0	09:15:36	0
432616	99	48	40,5	cyclictest	631560	-21	sshd	12:20:33	1
432616	99	48	39,7	cyclictest	499474	-21	df_abs	09:50:23	1
432615	99	48	4,37	cyclictest	486817	-21	sh	09:35:33	0
432615	99	48	41,5	cyclictest	445049	-21	cat	07:55:37	0
432615	99	48	41,5	cyclictest	441528	-21	kworker/u4:2+events_unbound	07:52:00	0
432615	99	48	40,6	cyclictest	111404	-21	kworker/u4:7+events_unbound	07:13:59	0
432615	99	48	39,6	cyclictest	543528	-21	gltestperf	10:40:20	0
432615	99	48	39,6	cyclictest	508504	-21	/usr/sbin/munin	10:00:21	0
432615	99	48	27,18	cyclictest	0	-21	swapper/0	11:05:02	0
432616	99	47	40,5	cyclictest	444073	-21	kworker/u4:7+events_unbound	08:35:01	1
432616	99	47	1,9	cyclictest	560933	-21	ssh	11:00:19	1
432615	99	47	7,30	cyclictest	459305	-21	sshd	08:50:29	0
432615	99	47	42,4	cyclictest	422663	-21	kworker/u4:5+events_unbound	08:11:46	0
432615	99	47	37,8	cyclictest	438155	-21	fschecks_count	07:30:20	0
432615	99	47	37,7	cyclictest	439205	-21	aten_r7power_cu	07:35:16	0
432615	99	47	37,7	cyclictest	439205	-21	aten_r7power_cu	07:35:16	0
432615	99	47	34,8	cyclictest	0	-21	swapper/0	11:05:35	0
432615	99	47	34,8	cyclictest	0	-21	swapper/0	11:05:35	0
432615	99	47	20,8	cyclictest	0	-21	swapper/0	09:10:39	0
432615	99	47	16,6	cyclictest	15	1	ktimers/0	09:25:40	0
432616	99	46	39,5	cyclictest	506128	-21	kworker/u4:4+events_unbound	10:11:45	1
432616	99	46	33,6	cyclictest	442800	-21	kworker/u4:8+events_unbound	08:10:02	1
432615	99	46	40,4	cyclictest	422663	-21	kworker/u4:5+events_unbound	07:43:46	0
432615	99	46	37,6	cyclictest	435724	-21	gltestperf	07:20:19	0
432616	99	45	38,5	cyclictest	504440	-21	ntpq	09:55:36	1
432616	99	45	37,6	cyclictest	574287	-21	gltestperf	11:15:21	1
432616	99	45	37,5	cyclictest	549452	-21	kworker/u4:11-rpciod	10:55:19	1
432615	99	45	18,3	cyclictest	19	1	rcuc/0	12:30:41	0
432615	99	45	15,4	cyclictest	15	1	ktimers/0	11:20:19	0
432616	99	44	37,5	cyclictest	463624	-21	diskmemload	11:06:59	1
432616	99	44	37,5	cyclictest	463624	-21	diskmemload	11:06:58	1
432616	99	44	34,7	cyclictest	434155	-21	aten_r7power_po	07:15:17	1
432615	99	44	36,6	cyclictest	456411	-21	gltestperf	08:40:22	0
432615	99	44	33,7	cyclictest	0	-21	swapper/0	08:15:31	0
432615	99	44	12,23	cyclictest	17	1	rcu_preempt	07:47:25	0
432616	99	43	34,6	cyclictest	479285	-21	kworker/u4:9+rpciod	09:30:00	1
432616	99	43	34,6	cyclictest	445420	-21	latency_hist	08:00:01	1
432615	99	43	31,8	cyclictest	446648	-21	cron	08:05:00	0
432616	99	42	34,5	cyclictest	437970	-21	aten_r7power_en	07:30:15	1
432616	99	42	33,6	cyclictest	430113	-21	kworker/u4:10+rpciod	07:40:19	1
432615	99	42	35,5	cyclictest	444072	-21	kworker/u4:3+events_unbound	08:37:46	0
432615	99	42	11,6	cyclictest	15	1	ktimers/0	11:30:18	0
432616	99	41	32,6	cyclictest	452408	-21	fschecks_count	08:25:24	1
432616	99	41	32,6	cyclictest	437730	-21	idleruntime-cro	07:30:01	1
432616	99	41	31,8	cyclictest	436455	-21	munin-run	07:25:01	1
432615	99	40	30,6	cyclictest	0	-21	swapper/0	07:10:00	0
432616	99	38	29,6	cyclictest	0	-21	swapper/1	07:10:02	1
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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