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 Tue Dec 30, 2025 12:44:09)
Delayed (victim)					Switcher (culprit)			Timestamp	CPU
PID	Prio	Total latency (µs)	T^(,W^*) latency (µs)	Cmd	PID	Prio	Cmd	Timestamp	CPU
2559634	99	185	167,13	cyclictest	54	-21	kswapd0	10:40:09	0
2559635	99	114	106,6	cyclictest	2626629	-21	kworker/u4:4+events_unbound	09:55:14	1
2559634	99	109	86,10	cyclictest	2609571	-21	kworker/u4:7+events_unbound	10:35:25	0
2559634	99	96	89,5	cyclictest	2730385	-21	kworker/u4:8+events_unbound	12:00:43	0
2559635	99	95	70,8	cyclictest	2684689	-21	kworker/u4:1+events_unbound	11:25:36	1
2559634	99	93	84,7	cyclictest	2697324	-21	kworker/u4:12+events_unbound	11:35:38	0
2559634	99	92	79,5	cyclictest	2730384	-21	kworker/u4:7+events_unbound	12:05:44	0
2559634	99	86	76,7	cyclictest	2688902	-21	kworker/u4:2+xprtiod	11:25:10	0
2559634	99	81	69,9	cyclictest	2559631	-21	cyclictest	12:15:13	0
2559634	99	81	64,14	cyclictest	2651463	-21	kworker/u4:3+events_unbound	10:25:01	0
2559634	99	77	64,11	cyclictest	2565900	-21	kworker/u4:5+events_unbound	08:20:01	0
2559634	99	76	39,33	cyclictest	255	50	irq/23-42890000.ethernet	10:50:10	0
2559634	99	74	68,4	cyclictest	2565900	-21	kworker/u4:5+events_unbound	08:14:40	0
2559635	99	73	66,4	cyclictest	0	-21	swapper/1	10:15:31	1
2559635	99	73	35,35	cyclictest	0	-21	swapper/1	11:00:25	1
2559635	99	70	37,30	cyclictest	2571180	-21	latency_hist	07:55:02	1
2559635	99	70	36,31	cyclictest	2736056	-21	idleruntime-cro	12:05:01	1
2559634	99	70	4,50	cyclictest	2654108	-21	ssh	10:25:31	0
2559634	99	70	4,50	cyclictest	2654108	-21	ssh	10:25:31	0
2559635	99	68	36,29	cyclictest	0	-21	swapper/1	09:25:43	1
2559634	99	68	61,5	cyclictest	2579878	-21	kworker/u4:8+events_unbound	08:45:01	0
2559635	99	67	35,30	cyclictest	2708621	-21	unixbench-2d	11:30:39	1
2559635	99	67	32,31	cyclictest	0	-21	swapper/1	10:45:30	1
2559634	99	67	60,5	cyclictest	2605330	-21	kworker/u4:1+events_unbound	09:30:08	0
2559634	99	67	50,7	cyclictest	2680420	-21	kworker/u4:3+events_unbound	11:09:59	0
2559635	99	66	2,28	cyclictest	2590010	-21	diskmemload	12:10:30	1
2559634	99	66	53,10	cyclictest	54	-21	kswapd0	11:25:01	0
2559635	99	65	33,30	cyclictest	2756860	-21	latency_hist	12:30:01	1
2559635	99	65	31,31	cyclictest	0	-21	swapper/1	11:20:37	1
2559634	99	65	4,51	cyclictest	2724666	-21	sh	11:50:30	0
2559635	99	64	57,5	cyclictest	0	-21	swapper/1	09:40:14	1
2559635	99	64	32,30	cyclictest	2653225	-21	sh	10:25:02	1
2559635	99	64	29,32	cyclictest	2750822	-21	kworker/u4:7-rpciod	12:40:01	1
2559635	99	64	23,3	cyclictest	2694966	-21	sh	11:15:18	1
2559635	99	64	20,10	cyclictest	2687816	-21	sed	11:05:39	1
2559634	99	64	56,6	cyclictest	54	-21	kswapd0	09:55:10	0
2559635	99	63	28,32	cyclictest	0	-21	swapper/1	12:15:35	1
2559635	99	63	27,33	cyclictest	0	-21	swapper/1	12:25:01	1
2559635	99	63	27,33	cyclictest	0	-21	swapper/1	10:10:21	1
2559635	99	63	27,32	cyclictest	0	-21	swapper/1	09:30:34	1
2559634	99	63	55,6	cyclictest	2651463	-21	kworker/u4:3+events_unbound	10:30:23	0
2559634	99	63	51,5	cyclictest	2659306	-21	kworker/u4:11+events_unbound	11:02:59	0
2559635	99	62	31,27	cyclictest	0	-21	swapper/1	07:50:01	1
2559634	99	62	55,6	cyclictest	2588715	-21	kworker/u4:16+events_unbound	09:05:01	0
2559635	99	61	34,25	cyclictest	2591279	-21	sendmail_mailst	09:10:36	1
2559635	99	61	31,28	cyclictest	2579883	-21	kworker/u4:10-rpciod	08:50:30	1
2559635	99	61	30,28	cyclictest	2678663	-21	sort	10:55:21	1
2559635	99	61	30,27	cyclictest	0	-21	swapper/1	09:20:30	1
2559635	99	61	29,29	cyclictest	0	-21	swapper/1	10:25:27	1
2559635	99	61	29,29	cyclictest	0	-21	swapper/1	10:25:26	1
2559634	99	61	49,5	cyclictest	2583674	-21	kworker/u4:11+events_unbound	08:54:47	0
2559634	99	61	45,8	cyclictest	2680423	-21	kworker/u4:8+events_unbound	10:58:43	0
2559635	99	60	52,6	cyclictest	2667765	-21	kworker/u4:5+events_unbound	10:50:29	1
2559635	99	60	32,26	cyclictest	2730384	-21	kworker/u4:7-rpciod	12:05:36	1
2559635	99	60	26,31	cyclictest	0	-21	swapper/1	10:05:39	1
2559635	99	60	25,32	cyclictest	0	-21	swapper/1	12:30:15	1
2559635	99	60	25,32	cyclictest	0	-21	swapper/1	11:45:20	1
2559635	99	60	24,33	cyclictest	0	-21	swapper/1	08:15:34	1
2559635	99	60	24,32	cyclictest	0	-21	swapper/1	11:15:02	1
2559635	99	60	23,4	cyclictest	0	-21	swapper/1	09:15:26	1
2559635	99	60	23,4	cyclictest	0	-21	swapper/1	09:15:25	1
2559634	99	60	53,5	cyclictest	2562096	-21	kworker/u4:8+events_unbound	07:59:34	0
2559634	99	60	52,6	cyclictest	2562096	-21	kworker/u4:8+events_unbound	07:44:31	0
2559634	99	60	42,7	cyclictest	2634547	-21	kworker/u4:16+events_unbound	10:02:00	0
2559634	99	60	40,12	cyclictest	2642991	-21	kworker/u4:6+xprtiod	10:15:09	0
2559635	99	59	29,27	cyclictest	0	-21	swapper/1	09:45:21	1
2559635	99	59	26,29	cyclictest	0	-21	swapper/1	11:55:25	1
2559635	99	59	22,4	cyclictest	0	-21	swapper/1	11:40:00	1
2559635	99	58	24,30	cyclictest	0	-21	swapper/1	09:10:00	1
2559635	99	58	21,5	cyclictest	0	-21	swapper/1	09:35:22	1
2559635	99	57	27,28	cyclictest	0	-21	swapper/1	08:40:18	1
2559635	99	57	27,27	cyclictest	0	-21	swapper/1	09:50:24	1
2559635	99	57	27,27	cyclictest	0	-21	swapper/1	07:30:35	1
2559635	99	57	25,29	cyclictest	0	-21	swapper/1	07:25:20	1
2559635	99	57	20,5	cyclictest	0	-21	swapper/1	10:35:24	1
2559634	99	57	40,16	cyclictest	2759278	-21	kworker/u4:16+events_unbound	12:39:59	0
2559635	99	56	4,13	cyclictest	2632559	-21	ssh	10:00:12	1
2559635	99	56	25,29	cyclictest	2666531	-21	awk	10:40:28	1
2559635	99	56	25,28	cyclictest	0	-21	swapper/1	11:50:31	1
2559635	99	56	22,4	cyclictest	0	-21	swapper/1	08:25:12	1
2559635	99	56	20,5	cyclictest	0	-21	swapper/1	10:30:20	1
2559634	99	56	50,4	cyclictest	2560836	-21	kworker/u4:6+events_unbound	07:29:27	0
2559634	99	56	45,8	cyclictest	2616045	-21	df	09:40:18	0
2559635	99	55	26,26	cyclictest	0	-21	swapper/1	08:30:15	1
2559635	99	55	24,29	cyclictest	2573042	-21	netstat	08:00:23	1
2559635	99	55	22,6	cyclictest	0	-21	swapper/1	08:35:19	1
2559635	99	55	21,5	cyclictest	0	-21	swapper/1	08:55:17	1
2559635	99	55	18,9	cyclictest	0	-21	swapper/1	08:45:17	1
2559634	99	55	48,5	cyclictest	2622377	-21	kworker/u4:9+events_unbound	09:53:59	0
2559634	99	55	41,12	cyclictest	2596621	-21	kworker/u4:4+events_unbound	09:47:18	0
2559634	99	55	20,9	cyclictest	2717830	-21	kworker/u4:3+events_unbound	11:56:17	0
2559635	99	54	27,25	cyclictest	0	-21	swapper/1	08:20:35	1
2559635	99	54	26,25	cyclictest	0	-21	swapper/1	07:15:13	1
2559634	99	54	47,5	cyclictest	0	-21	swapper/0	11:40:14	0
2559634	99	54	46,6	cyclictest	54	-21	kswapd0	12:15:01	0
2559634	99	54	42,9	cyclictest	0	-21	swapper/0	09:35:30	0
2559635	99	53	23,27	cyclictest	0	-21	swapper/1	07:20:23	1
2559635	99	53	20,4	cyclictest	0	-21	swapper/1	07:10:18	1
2559634	99	53	46,5	cyclictest	2590650	-21	fschecks_count	09:10:20	0
2559634	99	53	46,5	cyclictest	2579878	-21	kworker/u4:8+events_unbound	08:29:41	0
2559635	99	52	23,26	cyclictest	0	-21	swapper/1	08:10:24	1
2559635	99	52	19,7	cyclictest	0	-21	swapper/1	08:05:23	1
2559634	99	52	44,6	cyclictest	2671980	-21	kworker/u4:14+events_unbound	10:49:58	0
2559634	99	52	40,10	cyclictest	2642003	-21	timerandwakeup	10:10:39	0
2559634	99	52	32,8	cyclictest	2596624	-21	kworker/u4:10+events_unbound	09:29:59	0
2559634	99	52	32,17	cyclictest	0	-21	swapper/0	12:30:39	0
2559635	99	51	21,4	cyclictest	0	-21	swapper/1	08:00:00	1
2559634	99	51	43,6	cyclictest	2680422	-21	kworker/u4:6+events_unbound	11:11:00	0
2559634	99	51	42,7	cyclictest	2583674	-21	kworker/u4:11+events_unbound	09:16:43	0
2559634	99	51	42,7	cyclictest	2583674	-21	kworker/u4:11+events_unbound	09:16:43	0
2559634	99	50	43,5	cyclictest	2600273	-21	who	09:20:41	0
2559634	99	50	43,5	cyclictest	2568435	-21	kworker/u4:7+events_unbound	08:34:43	0
2559634	99	50	40,8	cyclictest	2721084	-21	unixbench_singl	11:45:39	0
2559634	99	49	42,5	cyclictest	2753187	-21	sed	12:25:18	0
2559635	99	48	15,8	cyclictest	0	-21	swapper/1	09:00:20	1
2559634	99	48	40,6	cyclictest	2618119	-21	kworker/u4:2+events_unbound	10:05:58	0
2559634	99	48	40,6	cyclictest	2550922	-21	kworker/u4:10+events_unbound	07:39:29	0
2559634	99	48	31,5	cyclictest	2696724	-21	kworker/u4:7+events_unbound	11:19:35	0
2559635	99	47	38,7	cyclictest	2566999	-21	timerwakeupswit	07:35:37	1
2559634	99	47	39,6	cyclictest	2559865	-21	aten_r7power_en	07:10:16	0
2559634	99	46	8,11	cyclictest	0	-21	swapper/0	07:50:12	0
2559634	99	46	39,5	cyclictest	2569930	-21	latency_hist	07:50:02	0
2559634	99	46	38,6	cyclictest	2748844	-21	aten2__	12:20:16	0
2559634	99	45	9,24	cyclictest	2559631	-21	cyclictest	07:10:00	0
2559634	99	45	37,6	cyclictest	2584193	-21	fschecks_time	08:45:21	0
2559634	99	45	37,6	cyclictest	2572578	-21	aten_r7power_en	08:00:17	0
2559635	99	44	25,5	cyclictest	2709456	-21	kworker/u4:2+events_unbound	11:40:17	1
2559634	99	44	37,5	cyclictest	2562097	-21	kworker/u4:12+events_unbound	07:17:00	0
2559634	99	44	36,6	cyclictest	2582347	-21	unixbench_singl	08:35:40	0
2559634	99	44	35,7	cyclictest	2574959	-21	latency_hist	08:10:00	0
2559634	99	43	37,4	cyclictest	2708244	-21	ntp_offset	11:30:32	0
2559634	99	43	35,6	cyclictest	2577677	-21	aten_r7power_po	08:20:16	0
2559634	99	43	23,17	cyclictest	2565927	-21	modprobe	07:35:00	0
2559634	99	40	34,4	cyclictest	2586578	-21	df_abs	08:55:15	0
2559634	99	40	33,5	cyclictest	0	-21	swapper/0	07:20:17	0
2559635	99	37	31,4	cyclictest	0	-21	swapper/1	07:40:29	1
2559634	99	37	27,7	cyclictest	2588979	-21	aten_r7power_en	09:05:17	0
2559635	99	32	26,4	cyclictest	0	-21	swapper/1	07:10:01	1
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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