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 Jul 01, 2026 00:44:08)
Delayed (victim)					Switcher (culprit)			Timestamp	CPU
PID	Prio	Total latency (µs)	T^(,W^*) latency (µs)	Cmd	PID	Prio	Cmd	Timestamp	CPU
2754570	99	113	106,5	cyclictest	2864286	-21	kworker/u4:10+events_unbound	22:41:26	0
2754570	99	110	102,6	cyclictest	2946840	-21	kworker/u4:8+events_unbound	00:11:43	0
2754571	99	108	100,6	cyclictest	2775327	-21	kworker/u4:2+events_unbound	21:16:05	1
2754571	99	107	98,6	cyclictest	2964865	-21	kworker/u4:0+events_unbound	00:35:14	1
2754571	99	107	98,6	cyclictest	2841792	-21	kworker/u4:2+events_unbound	22:16:16	1
2754570	99	105	98,5	cyclictest	2758381	-21	kworker/u4:15+events_unbound	19:55:54	0
2754571	99	100	85,7	cyclictest	2886110	-21	kworker/u4:0+events_unbound	23:15:00	1
2754570	99	100	92,6	cyclictest	2946840	-21	kworker/u4:8+events_unbound	00:21:46	0
2754570	99	99	84,6	cyclictest	2792598	-21	kworker/u4:11+events_unbound	21:21:05	0
2754570	99	98	89,7	cyclictest	2859165	-21	kworker/u4:7+events_unbound	22:31:23	0
2754570	99	97	90,5	cyclictest	2832760	-21	kworker/u4:11+events_unbound	22:21:18	0
2754571	99	96	86,7	cyclictest	2828876	-21	kworker/u4:9+events_unbound	22:01:14	1
2754570	99	95	87,6	cyclictest	2912555	-21	kworker/u4:8+events_unbound	23:36:33	0
2754570	99	94	87,5	cyclictest	2806253	-21	kworker/u4:2+events_unbound	21:36:10	0
2754570	99	94	86,6	cyclictest	2841791	-21	kworker/u4:1+events_unbound	22:46:27	0
2754570	99	94	75,6	cyclictest	2930542	-21	kworker/u4:5+events_unbound	00:01:43	0
2754571	99	93	73,7	cyclictest	2682707	-21	kworker/u4:13+events_unbound	19:10:01	1
2754571	99	92	87,3	cyclictest	2783066	-21	kworker/u4:6+events_unbound	21:10:02	1
2754571	99	91	84,5	cyclictest	2850817	-21	kworker/u4:0+events_unbound	22:36:24	1
2754570	99	90	83,5	cyclictest	2921594	-21	kworker/u4:3+events_unbound	23:46:36	0
2754571	99	89	81,6	cyclictest	2776607	-21	kworker/u4:11+events_unbound	20:35:58	1
2754570	99	89	74,6	cyclictest	2810770	-21	kworker/u4:5+events_unbound	21:41:10	0
2754571	99	87	79,6	cyclictest	2779254	-21	kworker/u4:9+events_unbound	20:45:59	1
2754571	99	84	78,4	cyclictest	2810771	-21	kworker/u4:6+events_unbound	21:56:13	1
2754570	99	84	75,6	cyclictest	2960375	-21	kworker/u4:8+events_unbound	00:30:00	0
2754571	99	83	76,5	cyclictest	2784451	-21	kworker/u4:12+events_unbound	21:05:00	1
2754570	99	82	74,6	cyclictest	2779254	-21	kworker/u4:9+events_unbound	20:51:01	0
2754570	99	82	74,6	cyclictest	2779254	-21	kworker/u4:9+events_unbound	20:51:00	0
2754571	99	81	68,7	cyclictest	2775334	-21	kworker/u4:8+events_unbound	20:30:01	1
2754571	99	81	67,7	cyclictest	2515810	-21	kworker/u4:4+events_unbound	19:35:00	1
2754570	99	80	72,6	cyclictest	2780526	-21	kworker/u4:1+events_unbound	21:01:02	0
2754571	99	79	72,5	cyclictest	2832761	-21	kworker/u4:16+events_unbound	22:11:14	1
2754571	99	79	72,5	cyclictest	2832761	-21	kworker/u4:16+events_unbound	22:11:14	1
2754571	99	79	66,6	cyclictest	2744605	-21	kworker/u4:5+events_unbound	19:20:01	1
2754571	99	79	66,5	cyclictest	2890615	-21	kworker/u4:1+events_unbound	23:51:37	1
2754570	99	79	72,5	cyclictest	2745903	-21	kworker/u4:8+events_unbound	19:10:46	0
2754571	99	78	71,5	cyclictest	2917069	-21	kworker/u4:4+events_unbound	23:56:35	1
2754571	99	77	70,5	cyclictest	2895120	-21	kworker/u4:10+events_unbound	23:21:33	1
2754570	99	77	70,5	cyclictest	2850818	-21	kworker/u4:2+events_unbound	22:56:27	0
2754570	99	77	69,6	cyclictest	2801770	-21	kworker/u4:14+events_unbound	21:31:09	0
2754571	99	76	69,5	cyclictest	2832761	-21	kworker/u4:16+events_unbound	22:06:16	1
2754570	99	76	69,5	cyclictest	2815320	-21	kworker/u4:9+events_unbound	21:51:13	0
2754571	99	75	68,5	cyclictest	2775333	-21	kworker/u4:7+events_unbound	21:00:00	1
2754571	99	73	66,5	cyclictest	2890616	-21	kworker/u4:4+events_unbound	23:16:32	1
2754570	99	73	65,6	cyclictest	2960374	-21	kworker/u4:6+events_unbound	00:31:48	0
2754570	99	73	56,7	cyclictest	2895120	-21	kworker/u4:10+events_unbound	23:15:03	0
2754571	99	72	63,7	cyclictest	2776607	-21	kworker/u4:11+events_unbound	20:41:00	1
2754571	99	72	63,7	cyclictest	2775326	-21	kworker/u4:0+events_unbound	20:30:57	1
2754570	99	71	49,6	cyclictest	2841791	-21	kworker/u4:1+events_unbound	22:38:59	0
2754571	99	68	60,6	cyclictest	53	-21	kswapd0	23:30:00	1
2754571	99	66	59,5	cyclictest	2815321	-21	kworker/u4:10+events_unbound	21:49:59	1
2754571	99	66	58,6	cyclictest	2841791	-21	kworker/u4:1+events_unbound	22:26:19	1
2754570	99	63	48,6	cyclictest	2841791	-21	kworker/u4:1+events_unbound	22:50:02	0
2754570	99	62	53,7	cyclictest	2770042	-21	kworker/u4:8+events_unbound	20:10:56	0
2754571	99	61	54,5	cyclictest	2755803	-21	kworker/u4:10+events_unbound	19:50:01	1
2754571	99	61	53,6	cyclictest	2890615	-21	kworker/u4:1+events_unbound	00:16:44	1
2754571	99	60	47,11	cyclictest	0	-21	swapper/1	21:25:17	1
2754570	99	59	53,4	cyclictest	2771399	-21	kworker/u4:12+events_unbound	20:20:01	0
2754570	99	59	52,5	cyclictest	2767471	-21	kworker/u4:3+events_unbound	20:00:55	0
2754570	99	59	49,7	cyclictest	37	-21	kcompactd0	23:55:01	0
2754571	99	58	51,5	cyclictest	2881566	-21	kworker/u4:6+events_unbound	23:07:46	1
2754571	99	58	40,6	cyclictest	2930540	-21	kworker/u4:2+events_unbound	00:10:44	1
2754571	99	58	36,6	cyclictest	2890615	-21	kworker/u4:1+events_unbound	23:30:54	1
2754570	99	58	51,5	cyclictest	2810770	-21	kworker/u4:5+events_unbound	22:04:01	0
2754570	99	57	49,6	cyclictest	2917069	-21	kworker/u4:4+events_unbound	23:55:03	0
2754570	99	56	27,24	cyclictest	256	50	irq/23-42890000.ethernet	22:15:29	0
2754571	99	55	47,6	cyclictest	2755803	-21	kworker/u4:10+events_unbound	19:40:52	1
2754570	99	55	48,5	cyclictest	2888319	-21	apt-get	23:05:11	0
2754570	99	55	22,21	cyclictest	2881566	-21	kworker/u4:6+events_unbound	23:10:08	0
2754571	99	54	45,6	cyclictest	2770044	-21	kworker/u4:10+events_unbound	20:15:58	1
2754571	99	54	45,6	cyclictest	2767470	-21	kworker/u4:1+events_unbound	20:05:57	1
2754570	99	54	46,6	cyclictest	2755803	-21	kworker/u4:10+events_unbound	19:15:50	0
2754570	99	54	45,6	cyclictest	0	-21	swapper/0	21:55:15	0
2754570	99	54	29,23	cyclictest	2769291	-21	fschecks_time	20:05:20	0
2754571	99	53	46,5	cyclictest	2755802	-21	kworker/u4:6+events_unbound	19:35:52	1
2754571	99	53	45,6	cyclictest	2964707	-21	systemd	00:31:47	1
2754571	99	53	43,6	cyclictest	0	-21	swapper/1	22:50:33	1
2754570	99	53	46,5	cyclictest	2946841	-21	kworker/u4:9+events_unbound	00:19:00	0
2754570	99	53	46,5	cyclictest	2908690	-21	kworker/u4:6+events_unbound	23:28:01	0
2754570	99	53	45,6	cyclictest	2832760	-21	kworker/u4:11+events_unbound	22:30:00	0
2754570	99	53	45,5	cyclictest	2815322	-21	kworker/u4:11+events_unbound	21:45:03	0
2754570	99	53	44,7	cyclictest	2774103	-21	apt-key	20:25:02	0
2754570	99	53	41,7	cyclictest	2969375	-21	kworker/u4:10+events_unbound	00:38:46	0
2754571	99	52	45,5	cyclictest	2871555	-21	/usr/sbin/munin	22:45:40	1
2754571	99	52	44,5	cyclictest	2925198	-21	/usr/sbin/munin	23:45:43	1
2754571	99	52	42,7	cyclictest	2809167	-21	/usr/sbin/munin	21:35:25	1
2754570	99	52	45,5	cyclictest	2775329	-21	kworker/u4:6+events_unbound	20:35:01	0
2754570	99	52	38,11	cyclictest	53	-21	kswapd0	22:05:14	0
2754571	99	51	44,5	cyclictest	2805201	-21	timerwakeupswit	21:30:39	1
2754571	99	51	43,6	cyclictest	2758381	-21	kworker/u4:15+events_unbound	19:25:50	1
2754571	99	51	43,5	cyclictest	2955156	-21	who	00:20:43	1
2754571	99	51	41,8	cyclictest	2917069	-21	kworker/u4:4+events_unbound	23:40:35	1
2754571	99	51	36,12	cyclictest	0	-21	swapper/1	22:30:12	1
2754571	99	50	36,7	cyclictest	2775327	-21	kworker/u4:2+events_unbound	21:15:00	1
2754571	99	50	29,11	cyclictest	2955869	-21	kworker/u4:3+events_unbound	00:25:36	1
2754570	99	50	43,5	cyclictest	2930540	-21	kworker/u4:2+events_unbound	00:07:44	0
2754570	99	50	43,5	cyclictest	2902304	-21	/usr/sbin/munin	23:20:24	0
2754570	99	50	40,7	cyclictest	2843025	-21	ssh	22:13:52	0
2754570	99	50	40,7	cyclictest	2843025	-21	ssh	22:13:51	0
2754571	99	49	42,5	cyclictest	2754567	-21	cyclictest	22:21:45	1
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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