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 Feb 15, 2026 12:44:10)
Delayed (victim)					Switcher (culprit)			Timestamp	CPU
PID	Prio	Total latency (µs)	T^(,W^*) latency (µs)	Cmd	PID	Prio	Cmd	Timestamp	CPU
710675	99	114	104,7	cyclictest	892253	-21	kworker/u4:10+events_unbound	12:35:10	0
710675	99	112	80,23	cyclictest	54	-21	kswapd0	10:00:18	0
710676	99	105	98,5	cyclictest	870817	-21	kworker/u4:1+events_unbound	11:45:03	1
710675	99	103	88,11	cyclictest	862842	-21	kworker/u4:13+events_unbound	11:35:00	0
710675	99	102	95,5	cyclictest	700830	-21	kworker/u4:14+events_unbound	07:59:29	0
710675	99	102	83,7	cyclictest	696968	-21	kworker/u4:5+events_unbound	07:54:27	0
710675	99	98	91,5	cyclictest	717028	-21	kworker/u4:6+events_unbound	09:19:39	0
710675	99	98	83,7	cyclictest	833392	-21	kworker/u4:3+events_unbound	10:59:58	0
710676	99	96	89,5	cyclictest	816218	-21	kworker/u4:3+events_unbound	10:44:54	1
710676	99	95	88,5	cyclictest	883672	-21	kworker/u4:0+events_unbound	12:10:07	1
710676	99	95	88,5	cyclictest	833391	-21	kworker/u4:2+events_unbound	11:09:58	1
710676	99	95	82,6	cyclictest	695484	-21	kworker/u4:10+events_unbound	07:14:22	1
710675	99	95	89,4	cyclictest	833392	-21	kworker/u4:3+events_unbound	11:14:59	0
710676	99	94	86,6	cyclictest	717026	-21	kworker/u4:1+events_unbound	08:54:34	1
710675	99	94	86,6	cyclictest	803420	-21	kworker/u4:13+events_unbound	10:24:51	0
710676	99	87	79,6	cyclictest	718282	-21	kworker/u4:8+events_unbound	07:44:27	1
710676	99	85	78,5	cyclictest	807712	-21	kworker/u4:3+events_unbound	10:29:53	1
710676	99	83	76,5	cyclictest	756923	-21	kworker/u4:6+events_unbound	09:34:42	1
710676	99	78	70,6	cyclictest	718282	-21	kworker/u4:8+events_unbound	07:49:28	1
710675	99	77	70,5	cyclictest	729838	-21	kworker/u4:11+events_unbound	08:44:35	0
710675	99	77	70,5	cyclictest	729838	-21	kworker/u4:11+events_unbound	08:44:35	0
710675	99	77	69,6	cyclictest	870818	-21	kworker/u4:2+events_unbound	11:50:01	0
710676	99	76	69,5	cyclictest	824797	-21	kworker/u4:12+events_unbound	10:49:55	1
710675	99	75	67,6	cyclictest	719566	-21	kworker/u4:15+events_unbound	08:19:32	0
710675	99	75	67,6	cyclictest	714431	-21	kworker/u4:9+events_unbound	07:24:26	0
710675	99	75	67,6	cyclictest	714431	-21	kworker/u4:9+events_unbound	07:24:25	0
710676	99	72	67,4	cyclictest	698326	-21	kworker/u4:7+events_unbound	07:25:01	1
710676	99	72	67,4	cyclictest	698326	-21	kworker/u4:7+events_unbound	07:25:00	1
710675	99	72	64,6	cyclictest	731096	-21	kworker/u4:14+events_unbound	08:29:33	0
710676	99	71	64,5	cyclictest	717028	-21	kworker/u4:6+events_unbound	09:09:37	1
710676	99	71	59,6	cyclictest	756919	-21	kworker/u4:2+events_unbound	10:17:01	1
710675	99	70	62,6	cyclictest	717027	-21	kworker/u4:4+events_unbound	07:39:27	0
710676	99	68	50,6	cyclictest	736142	-21	kworker/u4:9+events_unbound	09:23:44	1
710676	99	68	50,5	cyclictest	896554	-21	kworker/u4:1+events_unbound	12:29:59	1
710675	99	68	59,7	cyclictest	773723	-21	kworker/u4:6+events_unbound	09:49:45	0
710675	99	67	60,5	cyclictest	892253	-21	kworker/u4:10+events_unbound	12:33:01	0
710675	99	67	59,6	cyclictest	719566	-21	kworker/u4:15+events_unbound	08:39:33	0
710675	99	66	59,5	cyclictest	717028	-21	kworker/u4:6+events_unbound	07:34:26	0
710676	99	65	58,5	cyclictest	731096	-21	kworker/u4:14+events_unbound	08:34:34	1
710676	99	65	47,7	cyclictest	858549	-21	kworker/u4:8+events_unbound	11:33:43	1
710676	99	64	58,4	cyclictest	760651	-21	kworker/u4:10+events_unbound	09:45:03	1
710676	99	64	56,6	cyclictest	714429	-21	kworker/u4:3+events_unbound	07:29:26	1
710675	99	63	55,6	cyclictest	756922	-21	kworker/u4:5+events_unbound	09:39:46	0
710675	99	63	55,6	cyclictest	705724	-21	kworker/u4:6+events_unbound	07:19:26	0
710675	99	63	41,7	cyclictest	833391	-21	kworker/u4:2+events_unbound	11:06:23	0
710676	99	61	53,6	cyclictest	727206	-21	kworker/u4:9+events_unbound	08:17:02	1
710676	99	61	53,6	cyclictest	727200	-21	kworker/u4:0+events_unbound	08:24:32	1
710675	99	61	54,5	cyclictest	717027	-21	kworker/u4:4+events_unbound	07:40:02	0
710676	99	59	52,5	cyclictest	769363	-21	kworker/u4:16+events_unbound	09:44:45	1
710675	99	59	36,5	cyclictest	858548	-21	kworker/u4:5+events_unbound	12:00:23	0
710676	99	58	42,6	cyclictest	811989	-21	kworker/u4:1+events_unbound	10:36:01	1
710676	99	57	50,5	cyclictest	883678	-21	kworker/u4:8+events_unbound	12:01:43	1
710676	99	57	50,5	cyclictest	738652	-21	kworker/u4:2+events_unbound	09:04:37	1
710676	99	57	49,6	cyclictest	803420	-21	kworker/u4:13+events_unbound	10:23:22	1
710676	99	57	41,6	cyclictest	727205	-21	kworker/u4:4+events_unbound	08:14:00	1
710675	99	57	49,6	cyclictest	833391	-21	kworker/u4:2+events_unbound	11:19:59	0
710675	99	57	49,6	cyclictest	790496	-21	kworker/u4:12+events_unbound	10:17:58	0
710675	99	57	45,5	cyclictest	756922	-21	kworker/u4:5+events_unbound	09:44:00	0
710675	99	57	31,9	cyclictest	54	-21	kswapd0	12:05:07	0
710676	99	56	45,8	cyclictest	795406	-21	ssh	10:12:34	1
710676	99	56	44,10	cyclictest	915460	-21	aten_r7power_cu	12:35:16	1
710676	99	56	29,6	cyclictest	782478	-21	kworker/u4:9+events_unbound	10:08:42	1
710675	99	56	48,6	cyclictest	858548	-21	kworker/u4:5+events_unbound	11:58:03	0
710675	99	56	48,6	cyclictest	743858	-21	kworker/u4:0+events_unbound	09:13:44	0
710675	99	55	48,5	cyclictest	717026	-21	kworker/u4:1+events_unbound	09:05:02	0
710675	99	55	38,15	cyclictest	754793	-21	fschecks_count	09:25:22	0
710675	99	55	38,15	cyclictest	754793	-21	fschecks_count	09:25:22	0
710675	99	55	35,5	cyclictest	773724	-21	kworker/u4:7+events_unbound	09:56:24	0
710675	99	55	35,5	cyclictest	773724	-21	kworker/u4:7+events_unbound	09:56:24	0
710676	99	54	45,7	cyclictest	898799	-21	fschecks_count	12:15:19	1
710675	99	54	47,5	cyclictest	867122	-21	kworker/u4:0+events_unbound	11:37:59	0
710675	99	54	46,5	cyclictest	870818	-21	kworker/u4:2+events_unbound	11:53:59	0
710676	99	53	32,10	cyclictest	845676	-21	kworker/u4:5+events_unbound	11:16:14	1
710675	99	53	46,5	cyclictest	793479	-21	gltestperf	10:10:23	0
710675	99	53	45,6	cyclictest	748212	-21	kworker/u4:12+events_unbound	09:20:59	0
710675	99	53	31,20	cyclictest	789092	-21	fschecks_count	10:05:23	0
710676	99	52	44,6	cyclictest	756919	-21	kworker/u4:2+events_unbound	09:37:43	1
710676	99	52	44,6	cyclictest	719566	-21	kworker/u4:15+events_unbound	08:01:44	1
710675	99	52	46,4	cyclictest	845674	-21	kworker/u4:1+events_unbound	11:25:44	0
710675	99	52	45,6	cyclictest	862842	-21	kworker/u4:13+events_unbound	12:14:59	0
710675	99	52	44,5	cyclictest	710673	-21	cyclictest	10:49:42	0
710675	99	52	43,6	cyclictest	782475	-21	kworker/u4:4+events_unbound	10:31:43	0
710676	99	51	45,4	cyclictest	719566	-21	kworker/u4:15+events_unbound	08:00:01	1
710676	99	51	44,5	cyclictest	695484	-21	kworker/u4:10+events_unbound	07:15:04	1
710676	99	51	41,7	cyclictest	0	-21	swapper/1	11:25:12	1
710675	99	51	43,6	cyclictest	869071	-21	aten_r7power_po	11:40:16	0
710675	99	51	43,6	cyclictest	736142	-21	kworker/u4:9+events_unbound	09:34:39	0
710676	99	50	39,6	cyclictest	786816	-21	kworker/u4:11+events_unbound	10:03:00	1
710676	99	50	35,8	cyclictest	799100	-21	kworker/u4:8-rpciod	11:11:38	1
710676	99	50	33,6	cyclictest	756923	-21	kworker/u4:6+events_unbound	09:29:57	1
710676	99	50	33,6	cyclictest	756923	-21	kworker/u4:6+events_unbound	09:29:56	1
710675	99	50	43,5	cyclictest	811992	-21	kworker/u4:6+events_unbound	10:37:54	0
710675	99	50	43,5	cyclictest	799100	-21	kworker/u4:8+events_unbound	10:26:00	0
710675	99	50	42,6	cyclictest	717026	-21	kworker/u4:1+events_unbound	08:08:59	0
710675	99	50	38,4	cyclictest	811991	-21	kworker/u4:5+events_unbound	10:51:00	0
710675	99	50	36,12	cyclictest	54	-21	kswapd0	09:50:08	0
710676	99	49	42,5	cyclictest	830923	-21	/usr/sbin/munin	10:55:12	1
710676	99	49	42,5	cyclictest	780339	-21	aten_r7power_vo	09:55:17	1
710676	99	49	42,5	cyclictest	780339	-21	aten_r7power_vo	09:55:16	1
710676	99	49	41,6	cyclictest	845674	-21	kworker/u4:1+events_unbound	11:25:00	1
710676	99	49	30,6	cyclictest	736140	-21	kworker/u4:4+events_unbound	08:57:16	1
710675	99	49	42,5	cyclictest	845674	-21	kworker/u4:1+events_unbound	11:20:02	0
710675	99	49	41,5	cyclictest	0	-21	swapper/0	10:40:35	0
710675	99	49	39,8	cyclictest	714788	-21	aten_r7power_en	07:25:21	0
710676	99	48	39,6	cyclictest	0	-21	swapper/1	09:10:30	1
710676	99	48	38,7	cyclictest	835461	-21	fschecks_count	11:00:19	1
710675	99	48	41,5	cyclictest	892255	-21	kworker/u4:12+events_unbound	12:21:44	0
710675	99	48	40,6	cyclictest	833393	-21	kworker/u4:5+events_unbound	11:03:44	0
710675	99	48	40,6	cyclictest	696968	-21	kworker/u4:5+events_unbound	08:03:03	0
710676	99	47	40,5	cyclictest	911199	-21	grep	12:30:14	1
710676	99	47	40,5	cyclictest	903147	-21	fschecks_time	12:20:20	1
710676	99	47	40,5	cyclictest	868638	-21	munin-run	11:40:01	1
710676	99	47	39,6	cyclictest	833392	-21	kworker/u4:3+events_unbound	11:55:44	1
710676	99	47	37,7	cyclictest	747056	-21	ssh	09:15:44	1
710676	99	47	36,9	cyclictest	54	-21	kswapd0	10:30:15	1
710676	99	47	34,8	cyclictest	0	-21	swapper/1	11:50:35	1
710676	99	47	32,6	cyclictest	756919	-21	kworker/u4:2+events_unbound	09:54:48	1
710675	99	47	38,7	cyclictest	719821	-21	aten_r7power_cu	07:45:16	0
710675	99	47	37,8	cyclictest	710891	-21	aten_r7power_en	07:10:17	0
710676	99	46	37,7	cyclictest	891330	-21	unixbench_singl	12:05:44	1
710675	99	46	39,4	cyclictest	0	-21	swapper/0	12:15:28	0
710675	99	46	33,4	cyclictest	905151	-21	kworker/u4:8+events_unbound	12:27:59	0
710676	99	44	36,6	cyclictest	827124	-21	gltestperf	10:50:19	1
710676	99	44	35,6	cyclictest	0	-21	swapper/1	11:45:02	1
710675	99	44	36,6	cyclictest	737529	-21	latency_hist	08:55:02	0
710676	99	43	35,6	cyclictest	733614	-21	systemd	08:39:32	1
710675	99	43	32,9	cyclictest	735443	-21	gltestperf	08:45:20	0
710675	99	43	18,14	cyclictest	731277	-21	/usr/sbin/munin	08:30:23	0
710676	99	42	31,6	cyclictest	717027	-21	kworker/u4:4+events_unbound	07:35:17	1
710676	99	42	25,5	cyclictest	17	1	rcu_preempt	08:40:24	1
710676	99	42	25,5	cyclictest	17	1	rcu_preempt	08:40:23	1
710675	99	42	35,5	cyclictest	738717	-21	sendmail	09:00:01	0
710676	99	41	35,4	cyclictest	710684	-21	latency_hist	07:10:01	1
710676	99	41	34,5	cyclictest	725267	-21	gltestperf	08:05:20	1
710676	99	41	34,5	cyclictest	710673	-21	cyclictest	08:49:34	1
710676	99	41	33,6	cyclictest	0	-21	swapper/1	07:50:43	1
710676	99	41	30,8	cyclictest	730720	-21	ps	08:25:34	1
710676	99	41	25,7	cyclictest	715950	-21	/usr/sbin/munin	07:30:12	1
710675	99	41	34,5	cyclictest	739238	-21	gltestperf	09:00:19	0
710675	99	41	29,5	cyclictest	718281	-21	kworker/u4:7+events_unbound	08:11:00	0
710675	99	40	4,16	cyclictest	729859	-21	modprobe	08:24:59	0
710675	99	36	28,6	cyclictest	0	-21	swapper/0	07:10:00	0
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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