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 May 23, 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
956801	99	157	131,22	cyclictest	53	-21	kswapd0	07:45:09	0
956802	99	132	122,6	cyclictest	1026671	-21	kworker/u4:8+events_unbound	09:56:00	1
956802	99	110	101,6	cyclictest	968345	-21	kworker/u4:0+events_unbound	08:10:38	1
956801	99	96	57,34	cyclictest	53	-21	kswapd0	10:40:20	0
956802	99	93	84,7	cyclictest	961877	-21	kworker/u4:12+events_unbound	07:45:20	1
956802	99	89	76,10	cyclictest	964420	-21	kworker/u4:9+events_unbound	07:40:13	1
956802	99	88	80,5	cyclictest	1092970	-21	kworker/u4:11+events_unbound	11:41:20	1
956802	99	87	78,5	cyclictest	1066680	-21	kworker/u4:10+events_unbound	10:41:08	1
956802	99	85	76,6	cyclictest	1049358	-21	kworker/u4:6+events_unbound	10:20:00	1
956801	99	84	77,5	cyclictest	1066679	-21	kworker/u4:8+events_unbound	10:55:14	0
956802	99	81	76,3	cyclictest	951886	-21	kworker/u4:6+events_unbound	07:15:01	1
956802	99	80	73,5	cyclictest	1031277	-21	kworker/u4:4+events_unbound	10:01:00	1
956802	99	80	71,7	cyclictest	990563	-21	kworker/u4:4+events_unbound	09:40:57	1
956801	99	79	71,6	cyclictest	1159100	-21	kworker/u4:7+events_unbound	12:21:24	0
956801	99	79	26,32	cyclictest	1003078	-21	unixbench_multi	09:25:41	0
956802	99	77	69,6	cyclictest	1159100	-21	kworker/u4:7+events_unbound	12:31:27	1
956802	99	75	68,5	cyclictest	961878	-21	kworker/u4:13+events_unbound	07:55:01	1
956802	99	74	60,4	cyclictest	1089137	-21	kworker/u4:1+events_unbound	12:01:23	1
956802	99	73	65,6	cyclictest	1159100	-21	kworker/u4:7+events_unbound	12:30:00	1
956801	99	73	2,6	cyclictest	1116006	-21	ssh	11:33:03	0
956802	99	72	65,5	cyclictest	968350	-21	kworker/u4:5+events_unbound	08:20:02	1
956802	99	72	63,7	cyclictest	1031276	-21	kworker/u4:3+events_unbound	10:31:05	1
956801	99	72	65,5	cyclictest	1017504	-21	kworker/u4:5+events_unbound	09:45:01	0
956801	99	72	35,30	cyclictest	957781	-21	switchtime	07:10:38	0
956801	99	72	3,24	cyclictest	1051210	-21	apt-get	10:20:14	0
956801	99	72	20,43	cyclictest	968345	-21	kworker/u4:0+rpciod	08:05:01	0
956802	99	71	65,4	cyclictest	0	-21	swapper/1	12:20:24	1
956802	99	71	64,5	cyclictest	968345	-21	kworker/u4:0+events_unbound	09:00:01	1
956802	99	71	61,7	cyclictest	968345	-21	kworker/u4:0+events_unbound	08:05:01	1
956801	99	71	5,7	cyclictest	1149363	-21	proc_pri	12:10:35	0
956802	99	70	53,7	cyclictest	1150756	-21	kworker/u4:5+events_unbound	12:17:01	1
956801	99	70	6,59	cyclictest	0	-21	swapper/0	10:15:33	0
956801	99	69	1,6	cyclictest	1056383	-21	ntpq	10:25:28	0
956801	99	68	54,10	cyclictest	987891	-21	diskmemload	12:35:05	0
956801	99	68	34,31	cyclictest	1065434	-21	proc_pri	10:35:40	0
956802	99	67	2,52	cyclictest	1038724	-21	sh	10:05:33	1
956801	99	67	3,6	cyclictest	956798	-21	cyclictest	07:10:01	0
956801	99	67	29,35	cyclictest	1019886	-21	apt-get	09:45:11	0
956801	99	66	28,35	cyclictest	986817	-21	aten_r7power_cu	09:05:23	0
956801	99	66	22,41	cyclictest	0	-21	swapper/0	12:05:39	0
956801	99	66	1,6	cyclictest	1042993	-21	ssh	10:10:25	0
956802	99	65	51,6	cyclictest	1124482	-21	kworker/u4:2+events_unbound	11:46:21	1
956802	99	65	49,5	cyclictest	969706	-21	kworker/u4:8+events_unbound	08:50:02	1
956801	99	65	34,28	cyclictest	980647	-21	fschecks_time	08:40:20	0
956801	99	65	34,28	cyclictest	975398	-21	gltestperf	08:20:17	0
956802	99	64	58,5	cyclictest	1097450	-21	kworker/u4:2+events_unbound	11:20:02	1
956802	99	64	46,5	cyclictest	959307	-21	kworker/u4:0+events_unbound	07:40:00	1
956801	99	64	33,28	cyclictest	1029087	-21	aten_r7power_vo	09:55:17	0
956801	99	64	3,15	cyclictest	1060046	-21	apt-get	10:30:13	0
956801	99	64	2,15	cyclictest	997964	-21	ssh	09:20:26	0
956801	99	63	52,8	cyclictest	53	-21	kswapd0	11:55:36	0
956801	99	63	31,29	cyclictest	1122493	-21	gltestperf	11:40:21	0
956801	99	63	22,39	cyclictest	256	50	irq/23-42890000.ethernet	11:20:40	0
956801	99	63	15,43	cyclictest	0	-21	swapper/0	08:50:00	0
956802	99	62	55,5	cyclictest	951886	-21	kworker/u4:6+events_unbound	07:20:00	1
956802	99	62	42,6	cyclictest	978746	-21	kworker/u4:15+events_unbound	09:10:03	1
956802	99	62	37,17	cyclictest	0	-21	swapper/1	09:50:15	1
956801	99	62	32,26	cyclictest	0	-21	swapper/0	11:00:25	0
956801	99	62	30,29	cyclictest	0	-21	swapper/0	11:25:23	0
956801	99	62	29,29	cyclictest	0	-21	swapper/0	09:35:30	0
956801	99	62	29,29	cyclictest	0	-21	swapper/0	09:35:29	0
956801	99	62	27,33	cyclictest	53	-21	kswapd0	10:00:07	0
956801	99	62	27,31	cyclictest	1128971	-21	kworker/u4:4-rpciod	11:50:22	0
956801	99	62	25,34	cyclictest	1119817	-21	sshd	11:37:07	0
956801	99	62	12,48	cyclictest	15	1	ktimers/0	11:15:11	0
956801	99	62	1,20	cyclictest	988858	-21	ntpq	09:10:26	0
956801	99	61	6,10	cyclictest	1091940	-21	ps	11:05:38	0
956801	99	61	31,28	cyclictest	985231	-21	sh	09:00:01	0
956801	99	61	29,28	cyclictest	0	-21	swapper/0	07:20:37	0
956801	99	61	27,30	cyclictest	0	-21	swapper/0	12:15:26	0
956801	99	61	2,16	cyclictest	967877	-21	ntpq	07:50:29	0
956801	99	61	2,12	cyclictest	1099539	-21	ssh	11:15:01	0
956802	99	60	52,6	cyclictest	999095	-21	kworker/u4:10+events_unbound	09:30:55	1
956801	99	60	8,35	cyclictest	997130	-21	latency_hist	09:20:02	0
956801	99	60	3,14	cyclictest	1038567	-21	ntpq	10:05:26	0
956801	99	60	30,26	cyclictest	0	-21	swapper/0	10:45:34	0
956801	99	60	2,52	cyclictest	1007205	-21	ssh	09:30:33	0
956801	99	60	2,14	cyclictest	976963	-21	ntpq	08:25:30	0
956801	99	60	1,16	cyclictest	979573	-21	ntpq	08:35:29	0
956801	99	59	27,29	cyclictest	0	-21	swapper/0	09:50:19	0
956801	99	59	2,6	cyclictest	1140465	-21	ntp_states	12:00:32	0
956801	99	59	2,5	cyclictest	1166958	-21	ntp_states	12:30:32	0
956801	99	59	2,54	cyclictest	1126372	-21	apt-get	11:45:11	0
956801	99	59	2,14	cyclictest	986016	-21	ntpq	09:00:29	0
956801	99	59	2,14	cyclictest	986016	-21	ntpq	09:00:29	0
956802	99	58	50,5	cyclictest	53	-21	kswapd0	10:25:20	1
956801	99	58	2,9	cyclictest	977671	-21	apt-get	08:30:12	0
956801	99	58	29,25	cyclictest	0	-21	swapper/0	12:25:28	0
956801	99	58	24,29	cyclictest	0	-21	swapper/0	07:25:36	0
956801	99	58	2,18	cyclictest	971898	-21	ps	08:05:37	0
956801	99	58	2,13	cyclictest	973015	-21	ntpq	08:10:26	0
956801	99	58	13,42	cyclictest	0	-21	swapper/0	10:50:17	0
956802	99	57	48,6	cyclictest	1075617	-21	kworker/u4:6+events_unbound	11:10:03	1
956801	99	57	27,27	cyclictest	0	-21	swapper/0	07:35:34	0
956801	99	57	2,14	cyclictest	974325	-21	ntpq	08:15:27	0
956801	99	57	2,11	cyclictest	968631	-21	apt-get	07:55:20	0
956801	99	57	1,13	cyclictest	962551	-21	irqstats	07:30:20	0
956801	99	56	2,13	cyclictest	983947	-21	cron	08:54:59	0
956801	99	56	15,38	cyclictest	959236	-21	unixbench_singl	07:15:38	0
956802	99	55	48,5	cyclictest	1089137	-21	kworker/u4:1+events_unbound	11:40:01	1
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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