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 Sat Nov 22, 2025 12:44:08)
Delayed (victim)					Switcher (culprit)			Timestamp	CPU
PID	Prio	Total latency (µs)	T^(,W^*) latency (µs)	Cmd	PID	Prio	Cmd	Timestamp	CPU
3202672	99	139	128,7	cyclictest	3205180	-21	kworker/u4:14+events_unbound	08:20:29	1
3202670	99	130	121,6	cyclictest	3354653	-21	kworker/u4:0+events_unbound	12:11:08	0
3202670	99	130	110,7	cyclictest	3358170	-21	kworker/u4:1+events_unbound	12:31:10	0
3202670	99	124	105,8	cyclictest	3272077	-21	kworker/u4:2+events_unbound	10:20:50	0
3202672	99	122	114,6	cyclictest	3338181	-21	kworker/u4:10+events_unbound	12:05:20	1
3202670	99	120	112,6	cyclictest	3282151	-21	kworker/u4:9+events_unbound	10:45:09	0
3202670	99	119	110,6	cyclictest	3205180	-21	kworker/u4:14+events_unbound	08:55:41	0
3202672	99	118	113,3	cyclictest	3228750	-21	kworker/u4:1+events_unbound	09:10:42	1
3202670	99	118	103,7	cyclictest	3288864	-21	kworker/u4:15+events_unbound	11:31:04	0
3202670	99	117	109,6	cyclictest	3303482	-21	kworker/u4:7+events_unbound	11:16:01	0
3202670	99	117	109,6	cyclictest	3303482	-21	kworker/u4:7+events_unbound	11:16:01	0
3202670	99	117	108,6	cyclictest	3252422	-21	kworker/u4:6+events_unbound	09:40:45	0
3202672	99	115	105,8	cyclictest	3218177	-21	kworker/u4:15+events_unbound	08:30:32	1
3202670	99	115	107,6	cyclictest	3226081	-21	kworker/u4:17+events_unbound	08:50:40	0
3202670	99	115	105,7	cyclictest	3202591	-21	kworker/u4:4+events_unbound	07:19:22	0
3202670	99	114	100,6	cyclictest	3252419	-21	kworker/u4:2+events_unbound	09:39:51	0
3202670	99	111	102,7	cyclictest	3220827	-21	kworker/u4:9+events_unbound	08:25:30	0
3202672	99	108	92,7	cyclictest	3216889	-21	kworker/u4:4+events_unbound	08:40:38	1
3202670	99	107	98,7	cyclictest	3358173	-21	kworker/u4:5+events_unbound	12:16:08	0
3202670	99	107	91,14	cyclictest	3358170	-21	kworker/u4:1+events_unbound	12:26:09	0
3202670	99	106	97,6	cyclictest	3344862	-21	kworker/u4:8+events_unbound	11:55:19	0
3202670	99	104	96,6	cyclictest	3320402	-21	kworker/u4:5+events_unbound	11:26:03	0
3202670	99	103	95,6	cyclictest	3288863	-21	kworker/u4:14+events_unbound	11:10:10	0
3202670	99	103	95,6	cyclictest	3216889	-21	kworker/u4:4+events_unbound	08:45:40	0
3202670	99	103	94,6	cyclictest	3268540	-21	kworker/u4:11+events_unbound	10:05:48	0
3202670	99	102	92,7	cyclictest	3209059	-21	kworker/u4:17+events_unbound	07:50:19	0
3202670	99	99	94,3	cyclictest	3214209	-21	kworker/u4:1+events_unbound	08:05:23	0
3202670	99	99	91,6	cyclictest	3265010	-21	kworker/u4:6+events_unbound	10:35:07	0
3202670	99	99	90,6	cyclictest	3282150	-21	kworker/u4:8+events_unbound	10:25:51	0
3202672	99	97	89,6	cyclictest	3334441	-21	kworker/u4:1+events_unbound	11:46:05	1
3202670	99	97	88,7	cyclictest	3239466	-21	kworker/u4:0+events_unbound	09:24:48	0
3202672	99	96	88,6	cyclictest	3278922	-21	kworker/u4:4+events_unbound	10:30:50	1
3202670	99	95	87,6	cyclictest	3261864	-21	kworker/u4:4+events_unbound	09:54:52	0
3202672	99	94	86,6	cyclictest	3215491	-21	kworker/u4:7+events_unbound	08:00:21	1
3202672	99	94	86,6	cyclictest	3215491	-21	kworker/u4:7+events_unbound	08:00:20	1
3202670	99	94	88,3	cyclictest	3207778	-21	kworker/u4:16+events_unbound	07:29:23	0
3202672	99	93	76,9	cyclictest	3205180	-21	kworker/u4:14+events_unbound	07:40:14	1
3202672	99	91	82,6	cyclictest	3358176	-21	kworker/u4:9+events_unbound	12:15:23	1
3202672	99	91	82,6	cyclictest	3334441	-21	kworker/u4:1+events_unbound	11:40:15	1
3202672	99	91	82,6	cyclictest	3252420	-21	kworker/u4:3+events_unbound	10:00:48	1
3202672	99	91	78,10	cyclictest	3288864	-21	kworker/u4:15+events_unbound	11:30:16	1
3202670	99	89	80,6	cyclictest	3288864	-21	kworker/u4:15+events_unbound	11:00:59	0
3202670	99	86	78,6	cyclictest	3216891	-21	kworker/u4:6+events_unbound	08:24:42	0
3202670	99	86	76,7	cyclictest	3202591	-21	kworker/u4:4+events_unbound	07:39:26	0
3202670	99	84	76,5	cyclictest	3252419	-21	kworker/u4:2+events_unbound	09:59:55	0
3202670	99	84	76,5	cyclictest	3252419	-21	kworker/u4:2+events_unbound	09:59:54	0
3202670	99	83	75,6	cyclictest	3255586	-21	kworker/u4:8+events_unbound	09:45:46	0
3202670	99	83	74,6	cyclictest	3246251	-21	kworker/u4:8+events_unbound	09:30:45	0
3202672	99	81	73,6	cyclictest	3303021	-21	kworker/u4:0+events_unbound	11:00:10	1
3202672	99	81	73,6	cyclictest	3202594	-21	kworker/u4:9+events_unbound	07:49:28	1
3202670	99	80	72,6	cyclictest	3374032	-21	kworker/u4:2+events_unbound	12:40:01	0
3202670	99	80	67,5	cyclictest	3320401	-21	kworker/u4:2+events_unbound	11:20:12	0
3202672	99	79	71,6	cyclictest	3222144	-21	kworker/u4:10+events_unbound	08:39:43	1
3202670	99	78	68,6	cyclictest	0	-21	swapper/0	08:10:07	0
3202672	99	77	58,5	cyclictest	3341382	-21	kworker/u4:6+events_unbound	11:50:17	1
3202670	99	77	65,8	cyclictest	3233945	-21	diskmemload	10:40:06	0
3202672	99	75	66,6	cyclictest	3218177	-21	kworker/u4:15+events_unbound	08:10:25	1
3202670	99	74	66,6	cyclictest	3214209	-21	kworker/u4:1+events_unbound	08:04:35	0
3202670	99	74	66,6	cyclictest	3214209	-21	kworker/u4:1+events_unbound	08:04:34	0
3202672	99	73	67,4	cyclictest	3288864	-21	kworker/u4:15+events_unbound	10:40:08	1
3202670	99	72	64,6	cyclictest	3334441	-21	kworker/u4:1+events_unbound	12:01:05	0
3202670	99	72	64,6	cyclictest	3202591	-21	kworker/u4:4+events_unbound	07:20:09	0
3202672	99	71	63,6	cyclictest	3252419	-21	kworker/u4:2+events_unbound	09:49:53	1
3202672	99	71	63,6	cyclictest	3216889	-21	kworker/u4:4+events_unbound	09:09:47	1
3202672	99	71	51,6	cyclictest	3187347	-21	kworker/u4:3+events_unbound	08:15:27	1
3202672	99	69	61,6	cyclictest	3374032	-21	kworker/u4:2+events_unbound	12:36:12	1
3202670	99	68	60,6	cyclictest	3216889	-21	kworker/u4:4+events_unbound	08:34:43	0
3202672	99	67	62,3	cyclictest	3303484	-21	kworker/u4:10+events_unbound	11:05:58	1
3202672	99	67	60,5	cyclictest	3354653	-21	kworker/u4:0+events_unbound	12:25:25	1
3202670	99	67	61,4	cyclictest	3265010	-21	kworker/u4:6+events_unbound	10:05:00	0
3202670	99	67	60,5	cyclictest	3202591	-21	kworker/u4:4+events_unbound	07:15:01	0
3202670	99	66	59,5	cyclictest	3239473	-21	kworker/u4:11+events_unbound	09:19:48	0
3202672	99	65	55,6	cyclictest	3278922	-21	kworker/u4:4+events_unbound	10:20:00	1
3202672	99	64	55,6	cyclictest	3358177	-21	kworker/u4:10+events_unbound	12:20:23	1
3202672	99	64	55,6	cyclictest	3358177	-21	kworker/u4:10+events_unbound	12:20:23	1
3202670	99	64	57,5	cyclictest	3242911	-21	kworker/u4:1+events_unbound	09:29:49	0
3202670	99	64	56,6	cyclictest	3338177	-21	kworker/u4:3+events_unbound	11:51:05	0
3202672	99	62	54,6	cyclictest	3205180	-21	kworker/u4:14+events_unbound	09:00:00	1
3202670	99	62	56,4	cyclictest	15	1	ktimers/0	11:37:10	0
3202670	99	62	55,5	cyclictest	3202594	-21	kworker/u4:9+events_unbound	07:44:27	0
3202670	99	62	43,7	cyclictest	3222145	-21	kworker/u4:11+events_unbound	09:09:37	0
3202670	99	61	43,13	cyclictest	257	50	irq/23-42890000.ethernet	08:40:08	0
3202670	99	61	18,39	cyclictest	257	50	irq/23-42890000.ethernet	08:35:06	0
3202672	99	59	52,5	cyclictest	3224708	-21	kworker/u4:13+events_unbound	09:00:41	1
3202672	99	59	51,6	cyclictest	3296415	-21	kworker/u4:3+events_unbound	11:35:15	1
3202672	99	59	40,16	cyclictest	53	-21	kswapd0	09:55:22	1
3202672	99	59	40,16	cyclictest	53	-21	kswapd0	09:55:21	1
3202670	99	58	50,5	cyclictest	3303486	-21	kworker/u4:13+events_unbound	10:55:02	0
3202670	99	58	45,5	cyclictest	3242913	-21	kworker/u4:5+events_unbound	10:32:36	0
3202672	99	57	49,6	cyclictest	3320402	-21	kworker/u4:5+events_unbound	11:25:14	1
3202672	99	57	49,6	cyclictest	3205180	-21	kworker/u4:14+events_unbound	07:55:19	1
3202670	99	57	50,5	cyclictest	3296415	-21	kworker/u4:3+events_unbound	11:05:02	0
3202670	99	56	36,13	cyclictest	53	-21	kswapd0	10:15:06	0
3202670	99	56	33,14	cyclictest	3341382	-21	kworker/u4:6+events_unbound	12:09:36	0
3202672	99	52	43,6	cyclictest	3265010	-21	kworker/u4:6+events_unbound	10:35:52	1
3202672	99	52	41,7	cyclictest	0	-21	swapper/1	11:15:44	1
3202672	99	52	41,7	cyclictest	0	-21	swapper/1	11:15:44	1
3202672	99	51	42,7	cyclictest	3209248	-21	systemd	07:35:12	1
3202672	99	51	39,10	cyclictest	3228595	-21	sshd	08:45:38	1
3202670	99	51	43,6	cyclictest	3358176	-21	kworker/u4:9+events_unbound	12:21:37	0
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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