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 Sun Nov 30, 2025 12:44:02)
Delayed (victim)					Switcher (culprit)			Timestamp	CPU
PID	Prio	Total latency (µs)	T^(,W^*) latency (µs)	Cmd	PID	Prio	Cmd	Timestamp	CPU
1033146	99	140	123,15	cyclictest	1033075	-21	kworker/u4:12+events_unbound	09:20:46	0
1033146	99	140	123,15	cyclictest	1033075	-21	kworker/u4:12+events_unbound	09:20:46	0
1033150	99	135	114,7	cyclictest	1098571	-21	kworker/u4:17+events_unbound	10:05:56	1
1033150	99	134	127,5	cyclictest	1116098	-21	kworker/u4:0+events_unbound	10:25:59	1
1033150	99	133	124,6	cyclictest	1019152	-21	kworker/u4:0+events_unbound	07:15:23	1
1033150	99	133	118,7	cyclictest	1162905	-21	kworker/u4:1+events_unbound	12:01:17	1
1033150	99	132	125,5	cyclictest	1076679	-21	kworker/u4:18+events_unbound	09:35:49	1
1033146	99	131	123,5	cyclictest	1030614	-21	kworker/u4:8+events_unbound	08:45:39	0
1033146	99	131	118,5	cyclictest	1098569	-21	kworker/u4:14+events_unbound	10:15:57	0
1033150	99	128	121,5	cyclictest	1038344	-21	kworker/u4:5+events_unbound	07:40:28	1
1033146	99	128	121,5	cyclictest	1019152	-21	kworker/u4:0+events_unbound	09:05:42	0
1033146	99	126	118,5	cyclictest	1116098	-21	kworker/u4:0+events_unbound	10:26:01	0
1033146	99	125	117,6	cyclictest	1046234	-21	kworker/u4:15+events_unbound	08:15:34	0
1033150	99	124	108,8	cyclictest	1091151	-21	kworker/u4:12+events_unbound	10:10:55	1
1033146	99	122	116,5	cyclictest	19	1	rcuc/0	08:00:26	0
1033146	99	122	114,6	cyclictest	1126529	-21	kworker/u4:6+events_unbound	10:46:02	0
1033146	99	122	114,6	cyclictest	1064366	-21	kworker/u4:9+events_unbound	09:10:41	0
1033146	99	121	113,6	cyclictest	1038344	-21	kworker/u4:5+events_unbound	09:00:41	0
1033150	99	120	101,8	cyclictest	1116100	-21	kworker/u4:2+events_unbound	10:51:03	1
1033146	99	120	112,6	cyclictest	1066435	-21	kworker/u4:15+events_unbound	09:55:51	0
1033150	99	119	111,5	cyclictest	1029398	-21	kworker/u4:4+events_unbound	07:25:21	1
1033150	99	118	110,6	cyclictest	1066435	-21	kworker/u4:15+events_unbound	09:50:53	1
1033146	99	117	109,6	cyclictest	1200999	-21	kworker/u4:10+events_unbound	12:26:18	0
1033146	99	115	106,6	cyclictest	1155810	-21	kworker/u4:3+events_unbound	11:31:09	0
1033146	99	114	106,6	cyclictest	1083909	-21	kworker/u4:4+events_unbound	09:45:51	0
1033150	99	112	103,6	cyclictest	1132995	-21	kworker/u4:10+events_unbound	11:01:02	1
1033150	99	110	105,3	cyclictest	1132995	-21	kworker/u4:10+events_unbound	11:06:04	1
1033150	99	110	103,5	cyclictest	1038346	-21	kworker/u4:11+events_unbound	08:00:25	1
1033150	99	110	101,6	cyclictest	1038346	-21	kworker/u4:11+events_unbound	08:35:36	1
1033146	99	108	100,6	cyclictest	1098571	-21	kworker/u4:17+events_unbound	10:05:54	0
1033146	99	108	100,6	cyclictest	1033076	-21	kworker/u4:14+events_unbound	07:50:29	0
1033146	99	106	98,6	cyclictest	1155810	-21	kworker/u4:3+events_unbound	11:26:07	0
1033146	99	106	98,6	cyclictest	1066434	-21	kworker/u4:10+events_unbound	09:30:49	0
1033150	99	103	96,5	cyclictest	1030613	-21	kworker/u4:7+events_unbound	07:35:25	1
1033150	99	102	94,6	cyclictest	1066434	-21	kworker/u4:10+events_unbound	09:30:48	1
1033146	99	102	92,8	cyclictest	1162905	-21	kworker/u4:1+events_unbound	11:46:11	0
1033150	99	100	83,5	cyclictest	1181057	-21	kworker/u4:8+events_unbound	12:06:17	1
1033146	99	97	80,6	cyclictest	1037068	-21	kworker/u4:1+events_unbound	07:30:20	0
1033150	99	96	86,7	cyclictest	1116100	-21	kworker/u4:2+events_unbound	10:31:00	1
1033150	99	95	88,5	cyclictest	1162905	-21	kworker/u4:1+events_unbound	11:41:10	1
1033150	99	94	81,5	cyclictest	1083912	-21	kworker/u4:8+events_unbound	10:00:53	1
1033150	99	88	81,5	cyclictest	1149144	-21	kworker/u4:8+events_unbound	11:21:07	1
1033146	99	83	76,5	cyclictest	1188995	-21	kworker/u4:11+events_unbound	12:11:15	0
1033150	99	82	74,6	cyclictest	1173551	-21	kworker/u4:9+events_unbound	11:56:14	1
1033146	99	82	75,5	cyclictest	1098571	-21	kworker/u4:17+events_unbound	10:56:07	0
1033150	99	81	62,6	cyclictest	1188996	-21	kworker/u4:13+events_unbound	12:15:01	1
1033146	99	79	70,7	cyclictest	1091151	-21	kworker/u4:12+events_unbound	09:50:51	0
1033146	99	77	70,5	cyclictest	1030614	-21	kworker/u4:8+events_unbound	07:40:22	0
1033150	99	76	69,5	cyclictest	1090776	-21	kworker/u4:10+events_unbound	09:55:54	1
1033150	99	76	68,6	cyclictest	1143127	-21	kworker/u4:4+events_unbound	11:11:05	1
1033150	99	76	64,9	cyclictest	1037068	-21	kworker/u4:1+events_unbound	07:30:27	1
1033146	99	76	68,6	cyclictest	1181056	-21	kworker/u4:5+events_unbound	12:16:18	0
1033150	99	75	62,10	cyclictest	1038347	-21	kworker/u4:13+events_unbound	07:45:22	1
1033150	99	72	62,8	cyclictest	1044956	-21	kworker/u4:6+events_unbound	08:05:32	1
1033146	99	72	62,8	cyclictest	1019152	-21	kworker/u4:0+events_unbound	08:20:30	0
1033150	99	71	62,6	cyclictest	1119732	-21	kworker/u4:3+events_unbound	10:41:01	1
1033150	99	71	56,6	cyclictest	1033075	-21	kworker/u4:12+events_unbound	08:55:41	1
1033146	99	71	64,5	cyclictest	1158895	-21	kworker/u4:7+events_unbound	11:36:08	0
1033150	99	69	60,7	cyclictest	1030614	-21	kworker/u4:8+events_unbound	08:40:35	1
1033146	99	69	52,6	cyclictest	1038344	-21	kworker/u4:5+events_unbound	09:00:01	0
1033150	99	68	61,5	cyclictest	1053981	-21	kworker/u4:7+events_unbound	09:10:44	1
1033146	99	67	60,5	cyclictest	1030614	-21	kworker/u4:8+events_unbound	08:45:01	0
1033150	99	65	52,6	cyclictest	1143124	-21	kworker/u4:0+events_unbound	11:15:02	1
1033150	99	64	56,6	cyclictest	1158895	-21	kworker/u4:7+events_unbound	11:36:11	1
1033146	99	63	56,5	cyclictest	1098569	-21	kworker/u4:14+events_unbound	10:10:03	0
1033150	99	62	55,5	cyclictest	1116100	-21	kworker/u4:2+events_unbound	10:36:00	1
1033150	99	62	54,6	cyclictest	1059216	-21	kworker/u4:1+events_unbound	09:17:36	1
1033150	99	62	52,8	cyclictest	1030614	-21	kworker/u4:8+events_unbound	08:50:37	1
1033146	99	62	41,5	cyclictest	1169638	-21	kworker/u4:3+events_unbound	11:53:38	0
1033146	99	59	51,6	cyclictest	1038345	-21	kworker/u4:9+events_unbound	08:35:34	0
1033146	99	59	48,9	cyclictest	1019152	-21	kworker/u4:0+events_unbound	07:45:28	0
1033150	99	57	50,5	cyclictest	1076679	-21	kworker/u4:18+events_unbound	09:45:01	1
1033146	99	57	50,5	cyclictest	1116098	-21	kworker/u4:0+events_unbound	10:24:37	0
1033146	99	57	50,5	cyclictest	1038348	-21	kworker/u4:16+events_unbound	07:30:02	0
1033146	99	57	45,9	cyclictest	1187239	-21	df	12:05:19	0
1033146	99	57	38,7	cyclictest	1126528	-21	kworker/u4:1+events_unbound	11:11:36	0
1033150	99	56	49,5	cyclictest	1208771	-21	kworker/u4:10+events_unbound	12:40:01	1
1033150	99	56	44,10	cyclictest	1111027	-21	fschecks_count	10:15:19	1
1033146	99	56	42,6	cyclictest	1119732	-21	kworker/u4:3+events_unbound	10:39:37	0
1033150	99	55	45,8	cyclictest	1038347	-21	kworker/u4:13+events_unbound	07:55:26	1
1033150	99	55	40,6	cyclictest	1052697	-21	kworker/u4:3+events_unbound	09:05:38	1
1033150	99	54	43,8	cyclictest	1198636	-21	latency_hist	12:20:00	1
1033150	99	53	45,5	cyclictest	1131500	-21	gltestperf	10:45:23	1
1033146	99	53	45,6	cyclictest	1208770	-21	kworker/u4:3+events_unbound	12:36:22	0
1033146	99	53	34,17	cyclictest	53	-21	kswapd0	11:55:09	0
1033146	99	52	45,5	cyclictest	1030614	-21	kworker/u4:8+events_unbound	07:15:03	0
1033146	99	51	40,8	cyclictest	1076677	-21	ssh	09:26:56	0
1033150	99	50	44,5	cyclictest	1098571	-21	kworker/u4:17+events_unbound	10:20:03	1
1033146	99	50	43,5	cyclictest	1124394	-21	diskmemload	10:35:01	0
1033146	99	50	42,5	cyclictest	1085428	-21	latency_hist	09:40:02	0
1033146	99	50	41,7	cyclictest	1069254	-21	unixbench_singl	09:15:45	0
1033150	99	49	42,5	cyclictest	1071840	-21	df	09:20:18	1
1033150	99	49	42,5	cyclictest	1071840	-21	df	09:20:17	1
1033150	99	49	42,5	cyclictest	1051165	-21	timerandwakeup	08:15:40	1
1033150	99	49	41,6	cyclictest	1053922	-21	unixbench_singl	08:25:38	1
1033150	99	49	41,6	cyclictest	1033145	-21	cyclictest	09:42:01	1
1033146	99	49	43,4	cyclictest	1168984	-21	sshd	11:41:11	0
1033146	99	49	41,6	cyclictest	1141386	-21	fschecks_count	11:00:31	0
1033146	99	49	36,11	cyclictest	1197004	-21	kworker/u4:6+events_unbound	12:21:37	0
1033146	99	49	18,5	cyclictest	1149144	-21	kworker/u4:8+events_unbound	11:17:04	0
1033150	99	48	42,4	cyclictest	1155810	-21	kworker/u4:3+events_unbound	11:25:17	1
1033150	99	48	41,5	cyclictest	1199958	-21	sed	12:20:39	1
1033150	99	48	41,5	cyclictest	1049389	-21	gltestperf	08:10:21	1
1033150	99	48	40,6	cyclictest	1175333	-21	/usr/sbin/munin	11:50:15	1
1033150	99	48	39,7	cyclictest	1161402	-21	gltestperf	11:30:21	1
1033150	99	48	36,9	cyclictest	1044144	-21	grep	07:50:29	1
1033146	99	48	40,6	cyclictest	1033145	-21	cyclictest	08:25:35	0
1033146	99	48	38,7	cyclictest	0	-21	swapper/0	12:30:38	0
1033146	99	48	37,9	cyclictest	1154323	-21	gltestperf	11:20:22	0
1033150	99	47	40,5	cyclictest	1074883	-21	basename	09:25:16	1
1033150	99	47	35,9	cyclictest	1062698	-21	ps	09:00:36	1
1033150	99	47	28,7	cyclictest	1031858	-21	kworker/u4:9+events_unbound	07:10:40	1
1033150	99	47	21,8	cyclictest	1204823	-21	kworker/u4:2+events_unbound	12:30:38	1
1033146	99	47	39,5	cyclictest	1147238	-21	latency_hist	11:10:01	0
1033146	99	47	38,7	cyclictest	1128107	-21	aten_r7power_cu	10:40:17	0
1033146	99	47	36,5	cyclictest	1033075	-21	kworker/u4:12+events_unbound	07:35:22	0
1033146	99	47	33,10	cyclictest	1089043	-21	sort	09:45:02	0
1033150	99	46	40,4	cyclictest	1140818	-21	cron	11:00:00	1
1033150	99	46	39,4	cyclictest	0	-21	swapper/1	08:20:21	1
1033150	99	46	36,7	cyclictest	1172485	-21	unixbench_multi	11:45:40	1
1033150	99	46	28,6	cyclictest	1200995	-21	kworker/u4:4+events_unbound	12:25:47	1
1033146	99	46	38,5	cyclictest	1045722	-21	sshd	07:55:26	0
1033146	99	46	30,12	cyclictest	19	1	rcuc/0	08:10:13	0
1033150	99	45	36,7	cyclictest	1052697	-21	kworker/u4:3+events_unbound	08:45:36	1
1033146	99	45	38,5	cyclictest	1101017	-21	sendmail_mailst	10:00:39	0
1033146	99	45	36,6	cyclictest	0	-21	swapper/0	08:30:33	0
1033146	99	44	37,5	cyclictest	1181056	-21	kworker/u4:5+events_unbound	12:01:38	0
1033150	99	43	34,6	cyclictest	0	-21	swapper/1	08:30:43	1
1033150	99	42	35,5	cyclictest	1033256	-21	latency_hist	07:10:02	1
1033146	99	42	34,6	cyclictest	1056	-21	lldpd	08:52:41	0
1033146	99	41	36,3	cyclictest	1031858	-21	kworker/u4:9+events_unbound	07:10:16	0
1033146	99	41	34,5	cyclictest	1134919	-21	/usr/sbin/munin	10:50:25	0
1033146	99	39	31,6	cyclictest	1036256	-21	fschecks_count	07:20:27	0
1033150	99	38	30,5	cyclictest	1037195	-21	latency_hist	07:25:01	1
1033146	99	38	30,6	cyclictest	1048763	-21	unixbench_singl	08:05:40	0
1033146	99	36	4,21	cyclictest	1033145	-21	cyclictest	07:09:59	0
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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