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 all highest latencies:

System rack7slot2.osadl.org (updated Sun Apr 26, 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
1041029	99	108	97,8	cyclictest	1197580	-21	kworker/u4:16+events_unbound	11:35:10	1
1041029	99	104	95,6	cyclictest	53	-21	kswapd0	11:20:06	1
1041029	99	103	86,7	cyclictest	1132343	-21	kworker/u4:7+events_unbound	10:24:50	1
1041029	99	96	80,7	cyclictest	1020804	-21	kworker/u4:14+events_unbound	07:14:15	1
1041027	99	93	84,6	cyclictest	53	-21	kswapd0	12:05:14	0
1041029	99	92	86,4	cyclictest	1136800	-21	kworker/u4:2+events_unbound	10:29:51	1
1041029	99	87	79,6	cyclictest	1043528	-21	kworker/u4:6+events_unbound	09:04:31	1
1041027	99	86	77,6	cyclictest	1041025	-21	cyclictest	10:20:22	0
1041029	99	84	78,5	cyclictest	1105895	-21	kworker/u4:6+events_unbound	10:04:44	1
1041027	99	81	41,30	cyclictest	256	50	irq/23-42890000.ethernet	07:30:10	0
1041029	99	76	69,5	cyclictest	1087848	-21	kworker/u4:8+events_unbound	09:29:37	1
1041027	99	75	41,31	cyclictest	1055156	-21	unixbench_multi	08:00:40	0
1041027	99	75	36,36	cyclictest	1112569	-21	df_abs	09:55:16	0
1041027	99	75	36,36	cyclictest	0	-21	swapper/0	09:15:39	0
1041029	99	74	65,7	cyclictest	1043522	-21	kworker/u4:0+events_unbound	08:35:01	1
1041029	99	74	65,7	cyclictest	1043522	-21	kworker/u4:0+events_unbound	08:35:00	1
1041029	99	72	65,5	cyclictest	1069257	-21	kworker/u4:3+events_unbound	09:09:35	1
1041029	99	72	65,5	cyclictest	1053925	-21	kworker/u4:4+events_unbound	08:50:02	1
1041029	99	72	50,17	cyclictest	53	-21	kswapd0	09:35:09	1
1041029	99	71	64,5	cyclictest	1127832	-21	kworker/u4:0+events_unbound	10:17:00	1
1041029	99	71	58,6	cyclictest	1043529	-21	kworker/u4:7+events_unbound	07:59:20	1
1041027	99	71	31,36	cyclictest	0	-21	swapper/0	10:40:22	0
1041029	99	70	63,5	cyclictest	1087848	-21	kworker/u4:8+events_unbound	09:54:44	1
1041029	99	70	60,4	cyclictest	1043524	-21	kworker/u4:2+events_unbound	08:25:01	1
1041027	99	70	2,15	cyclictest	1071863	-21	modprobe	09:10:00	0
1041027	99	70	2,13	cyclictest	1157196	-21	sshd	10:45:37	0
1041029	99	69	62,5	cyclictest	1055225	-21	kworker/u4:16+events_unbound	08:09:21	1
1041027	99	69	8,55	cyclictest	1239935	-21	ld	12:20:36	0
1041027	99	68	33,31	cyclictest	0	-21	swapper/0	11:20:32	0
1041027	99	68	33,31	cyclictest	0	-21	swapper/0	10:51:49	0
1041029	99	67	54,8	cyclictest	0	-21	swapper/1	11:30:13	1
1041029	99	67	54,8	cyclictest	0	-21	swapper/1	11:30:13	1
1041027	99	67	34,30	cyclictest	1094791	-21	/usr/sbin/munin	09:35:23	0
1041027	99	67	32,32	cyclictest	1148814	-21	ssh	10:35:42	0
1041027	99	67	14,50	cyclictest	0	-21	swapper/0	11:50:09	0
1041027	99	66	57,6	cyclictest	1188718	-21	kworker/u4:4+events_unbound	11:25:09	0
1041027	99	66	3,25	cyclictest	1126391	-21	ssh	10:10:28	0
1041027	99	66	27,36	cyclictest	0	-21	swapper/0	11:05:30	0
1041027	99	65	47,5	cyclictest	1167156	-21	kworker/u4:1+events_unbound	11:04:56	0
1041027	99	65	13,49	cyclictest	1094219	-21	apt-get	09:35:02	0
1041029	99	64	57,5	cyclictest	1042253	-21	kworker/u4:12+events_unbound	07:19:14	1
1041027	99	64	33,29	cyclictest	1252686	-21	kernelversion	12:35:23	0
1041027	99	64	2,3	cyclictest	0	-21	swapper/0	09:25:36	0
1041027	99	64	2,16	cyclictest	1048289	-21	ntpq	07:35:28	0
1041029	99	63	56,5	cyclictest	1059035	-21	kworker/u4:11+events_unbound	08:39:29	1
1041029	99	63	48,6	cyclictest	1043529	-21	kworker/u4:7+events_unbound	07:50:02	1
1041029	99	63	48,6	cyclictest	1043529	-21	kworker/u4:7+events_unbound	07:50:01	1
1041029	99	63	46,8	cyclictest	0	-21	swapper/1	07:10:00	1
1041027	99	63	37,12	cyclictest	1195216	-21	apt-get	11:30:10	0
1041027	99	63	37,12	cyclictest	1195216	-21	apt-get	11:30:09	0
1041027	99	63	33,28	cyclictest	1183538	-21	switchtime	11:15:41	0
1041027	99	63	31,27	cyclictest	0	-21	swapper/0	12:30:20	0
1041027	99	63	29,31	cyclictest	0	-21	swapper/0	12:25:33	0
1041027	99	63	27,32	cyclictest	0	-21	swapper/0	08:50:40	0
1041027	99	63	22,4	cyclictest	256	50	irq/23-42890000.ethernet	10:15:37	0
1041027	99	63	2,18	cyclictest	1230617	-21	diskstats	12:10:19	0
1041029	99	62	46,6	cyclictest	1162717	-21	kworker/u4:6+events_unbound	11:15:59	1
1041027	99	62	28,30	cyclictest	0	-21	swapper/0	09:50:26	0
1041027	99	62	25,34	cyclictest	0	-21	swapper/0	10:00:02	0
1041027	99	62	22,36	cyclictest	0	-21	swapper/0	10:30:19	0
1041027	99	62	22,36	cyclictest	0	-21	swapper/0	10:25:38	0
1041029	99	61	52,7	cyclictest	1122207	-21	/usr/sbin/munin	10:05:39	1
1041029	99	61	45,6	cyclictest	1215304	-21	kworker/u4:1+events_unbound	12:12:01	1
1041027	99	61	28,28	cyclictest	0	-21	swapper/0	11:40:26	0
1041027	99	61	27,32	cyclictest	1103308	-21	latency_hist	09:45:02	0
1041027	99	61	27,31	cyclictest	1107575	-21	idleruntime-cro	09:50:01	0
1041027	99	61	20,39	cyclictest	0	-21	swapper/0	11:10:34	0
1041029	99	60	6,43	cyclictest	1165706	-21	ssh	10:55:29	1
1041029	99	60	53,5	cyclictest	1062883	-21	kworker/u4:5+events_unbound	08:44:29	1
1041029	99	60	53,5	cyclictest	1052659	-21	kworker/u4:3+events_unbound	08:19:23	1
1041029	99	60	1,41	cyclictest	1143844	-21	ssh	10:30:24	1
1041027	99	60	25,33	cyclictest	1121589	-21	fschecks_time	10:05:20	0
1041027	99	60	24,33	cyclictest	0	-21	swapper/0	08:45:39	0
1041027	99	60	24,32	cyclictest	1043522	-21	kworker/u4:0+rpciod	08:30:22	0
1041027	99	60	24,32	cyclictest	1043522	-21	kworker/u4:0+rpciod	08:30:22	0
1041027	99	60	23,35	cyclictest	1050486	-21	cpu	07:45:17	0
1041027	99	60	23,35	cyclictest	1050486	-21	cpu	07:45:16	0
1041027	99	59	5,14	cyclictest	1221997	-21	awk	12:00:21	0
1041027	99	59	28,28	cyclictest	0	-21	swapper/0	09:20:25	0
1041027	99	59	26,31	cyclictest	0	-21	swapper/0	12:15:39	0
1041027	99	59	21,34	cyclictest	0	-21	swapper/0	10:55:25	0
1041027	99	59	1,12	cyclictest	1044879	-21	munin-run	07:25:01	0
1041029	99	58	52,4	cyclictest	0	-21	swapper/1	12:05:31	1
1041029	99	58	51,5	cyclictest	1082141	-21	/usr/sbin/munin	09:20:39	1
1041029	99	58	45,5	cyclictest	1052659	-21	kworker/u4:3+events_unbound	08:14:23	1
1041029	99	58	39,7	cyclictest	1167157	-21	kworker/u4:3+events_unbound	11:06:59	1
1041027	99	58	4,11	cyclictest	0	-21	swapper/0	08:10:32	0
1041027	99	58	29,27	cyclictest	1215304	-21	kworker/u4:1-rpciod	11:55:34	0
1041027	99	58	29,26	cyclictest	0	-21	swapper/0	07:55:01	0
1041027	99	58	25,30	cyclictest	0	-21	swapper/0	08:40:00	0
1041027	99	58	21,4	cyclictest	0	-21	swapper/0	08:25:16	0
1041027	99	58	15,7	cyclictest	0	-21	swapper/0	08:45:00	0
1041027	99	58	1,11	cyclictest	1043721	-21	latency_hist	07:20:01	0
1041029	99	57	50,5	cyclictest	1043524	-21	kworker/u4:2+events_unbound	08:25:03	1
1041029	99	57	49,6	cyclictest	1042250	-21	kworker/u4:9+events_unbound	07:54:20	1
1041027	99	57	27,27	cyclictest	0	-21	swapper/0	11:45:37	0
1041027	99	57	24,29	cyclictest	0	-21	swapper/0	09:10:36	0
1041027	99	57	2,16	cyclictest	1070604	-21	awk	09:05:01	0
1041027	99	57	2,16	cyclictest	1056039	-21	ntpq	08:05:32	0
1041027	99	56	2,6	cyclictest	1053511	-21	ntpq	07:55:33	0
1041027	99	56	17,5	cyclictest	0	-21	swapper/0	11:35:38	0
1041029	99	55	45,7	cyclictest	0	-21	swapper/1	10:45:13	1
1041029	99	55	43,5	cyclictest	1249980	-21	kworker/u4:4+events_unbound	12:35:59	1
1041029	99	55	41,6	cyclictest	1245567	-21	kworker/u4:0+events_unbound	12:33:59	1
1041029	99	55	41,5	cyclictest	1206437	-21	kworker/u4:10+events_unbound	11:55:00	1
1041029	99	55	3,40	cyclictest	1222459	-21	ssh	12:00:30	1
1041027	99	55	14,9	cyclictest	1058325	-21	head	08:15:21	0
1041029	99	54	46,6	cyclictest	1204848	-21	/usr/sbin/munin	11:40:24	1
1041029	99	54	41,5	cyclictest	1069258	-21	kworker/u4:7+events_unbound	09:16:41	1
1041029	99	54	34,7	cyclictest	1171605	-21	kworker/u4:9+events_unbound	11:10:07	1
1041027	99	54	18,5	cyclictest	0	-21	swapper/0	07:10:37	0
1041029	99	53	9,37	cyclictest	1147520	-21	ssh	10:35:15	1
1041027	99	53	3,15	cyclictest	1049703	-21	ntpq	07:40:37	0
1041027	99	53	13,9	cyclictest	1059333	-21	aten_r7power_en	08:20:17	0
1041029	99	52	45,5	cyclictest	1236698	-21	kworker/u4:6+events_unbound	12:20:18	1
1041029	99	52	45,5	cyclictest	1087845	-21	kworker/u4:2+events_unbound	09:46:42	1
1041029	99	52	42,6	cyclictest	1092324	-21	kworker/u4:4+events_unbound	09:57:00	1
1041027	99	52	18,4	cyclictest	0	-21	swapper/0	08:55:16	0
1041029	99	51	45,4	cyclictest	1151979	-21	cut	10:40:15	1
1041029	99	51	39,5	cyclictest	1145590	-21	kworker/u4:12+events_unbound	10:50:17	1
1041029	99	51	35,7	cyclictest	1043528	-21	kworker/u4:6+events_unbound	07:35:13	1
1041029	99	50	43,5	cyclictest	1043526	-21	kworker/u4:4+events_unbound	07:30:43	1
1041029	99	50	41,6	cyclictest	1041025	-21	cyclictest	09:34:21	1
1041029	99	50	40,6	cyclictest	1126403	-21	ntpq	10:10:30	1
1041029	99	50	35,4	cyclictest	1069257	-21	kworker/u4:3+events_unbound	09:10:59	1
1041029	99	49	1,34	cyclictest	1217987	-21	ssh	11:55:26	1
1041029	99	48	39,7	cyclictest	1235123	-21	gltestperf	12:15:20	1
1041029	99	48	37,8	cyclictest	0	-21	swapper/1	12:25:32	1
1041029	99	48	33,9	cyclictest	1173429	-21	modprobe	11:05:00	1
1041029	99	47	38,6	cyclictest	0	-21	swapper/1	11:25:08	1
1041029	99	46	39,5	cyclictest	1092325	-21	kworker/u4:5+events_unbound	09:40:59	1
1041029	99	46	39,5	cyclictest	1068553	-21	gltestperf	08:55:20	1
1041027	99	46	36,7	cyclictest	1045325	-21	fschecks_count	07:25:21	0
1041029	99	45	36,7	cyclictest	0	-21	swapper/1	11:45:13	1
1041029	99	45	31,4	cyclictest	1043526	-21	kworker/u4:4+events_unbound	07:30:00	1
1041029	99	44	28,7	cyclictest	1053925	-21	kworker/u4:4+events_unbound	08:49:40	1
1041029	99	42	35,5	cyclictest	1055268	-21	grep	08:05:00	1
1041029	99	42	35,5	cyclictest	1044008	-21	fschecks_count	07:20:19	1
1041027	99	39	29,8	cyclictest	0	-21	swapper/0	07:10:02	0
1041029	99	36	24,9	cyclictest	0	-21	swapper/1	07:40:19	1
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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