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 Fri Dec 05, 2025 00:44:06)
Delayed (victim)					Switcher (culprit)			Timestamp	CPU
PID	Prio	Total latency (µs)	T^(,W^*) latency (µs)	Cmd	PID	Prio	Cmd	Timestamp	CPU
2659582	99	139	121,7	cyclictest	2846736	-21	kworker/u4:2+events_unbound	00:32:22	0
2659582	99	135	122,5	cyclictest	2388291	-21	kworker/u4:2+events_unbound	19:12:25	0
2659582	99	134	125,6	cyclictest	2646764	-21	kworker/u4:3+events_unbound	20:02:29	0
2659582	99	130	124,4	cyclictest	2680255	-21	kworker/u4:7+events_unbound	20:31:46	0
2659582	99	128	120,6	cyclictest	2769261	-21	kworker/u4:8+events_unbound	22:57:10	0
2659582	99	121	112,7	cyclictest	2685408	-21	kworker/u4:12+events_unbound	21:26:57	0
2659582	99	121	112,7	cyclictest	2685408	-21	kworker/u4:12+events_unbound	21:26:57	0
2659582	99	120	112,6	cyclictest	2822328	-21	kworker/u4:3+events_unbound	23:57:14	0
2659582	99	118	110,6	cyclictest	2738094	-21	kworker/u4:8+events_unbound	22:07:51	0
2659582	99	116	109,5	cyclictest	2822329	-21	kworker/u4:6+events_unbound	00:12:17	0
2659582	99	109	101,6	cyclictest	2667266	-21	kworker/u4:16+events_unbound	20:21:45	0
2659582	99	108	100,6	cyclictest	2685408	-21	kworker/u4:12+events_unbound	20:56:50	0
2659584	99	107	94,6	cyclictest	2803302	-21	kworker/u4:5+events_unbound	23:53:10	1
2659582	99	105	98,5	cyclictest	2788020	-21	kworker/u4:3+events_unbound	23:12:11	0
2659582	99	102	94,6	cyclictest	2660820	-21	kworker/u4:8+events_unbound	19:16:28	0
2659582	99	100	92,6	cyclictest	2709295	-21	kworker/u4:9+events_unbound	21:46:59	0
2659582	99	99	92,5	cyclictest	2664704	-21	kworker/u4:17+events_unbound	21:32:43	0
2659584	99	98	89,6	cyclictest	2667266	-21	kworker/u4:16+events_unbound	20:47:35	1
2659582	99	98	91,5	cyclictest	2791816	-21	kworker/u4:7+events_unbound	23:18:03	0
2659582	99	96	88,6	cyclictest	2822330	-21	kworker/u4:9+events_unbound	00:22:20	0
2659584	99	95	88,5	cyclictest	2675092	-21	kworker/u4:10+events_unbound	20:16:43	1
2659584	99	95	77,6	cyclictest	2713501	-21	kworker/u4:1+events_unbound	21:47:48	1
2659584	99	94	86,5	cyclictest	2826192	-21	kworker/u4:10+events_unbound	00:17:19	1
2659584	99	94	85,6	cyclictest	2709295	-21	kworker/u4:9+events_unbound	21:36:58	1
2659584	99	92	84,6	cyclictest	2667266	-21	kworker/u4:16+events_unbound	21:22:44	1
2659584	99	92	84,5	cyclictest	2663422	-21	kworker/u4:14+events_unbound	19:46:33	1
2659584	99	90	84,4	cyclictest	2667266	-21	kworker/u4:16+events_unbound	20:36:48	1
2659584	99	90	77,5	cyclictest	2826193	-21	kworker/u4:11+events_unbound	00:03:11	1
2659584	99	89	81,6	cyclictest	2799429	-21	kworker/u4:3+events_unbound	23:28:06	1
2659582	99	89	81,6	cyclictest	2680255	-21	kworker/u4:7+events_unbound	21:07:40	0
2659582	99	89	78,5	cyclictest	2673810	-21	kworker/u4:8+events_unbound	21:02:41	0
2659584	99	88	82,4	cyclictest	2713502	-21	kworker/u4:2+events_unbound	21:57:02	1
2659584	99	83	74,7	cyclictest	2667265	-21	kworker/u4:2+events_unbound	20:01:39	1
2659584	99	81	74,5	cyclictest	2660821	-21	kworker/u4:9+events_unbound	20:26:46	1
2659584	99	80	72,6	cyclictest	2734513	-21	kworker/u4:6+events_unbound	22:02:49	1
2659582	99	80	73,5	cyclictest	2772594	-21	kworker/u4:15+events_unbound	22:52:08	0
2659584	99	79	72,5	cyclictest	2646764	-21	kworker/u4:3+events_unbound	19:17:26	1
2659584	99	78	71,5	cyclictest	2667266	-21	kworker/u4:16+events_unbound	19:37:27	1
2659584	99	78	70,6	cyclictest	2826191	-21	kworker/u4:8+events_unbound	00:07:18	1
2659582	99	78	67,5	cyclictest	2673809	-21	kworker/u4:7+events_unbound	20:07:32	0
2659582	99	77	69,6	cyclictest	2713500	-21	kworker/u4:0+events_unbound	21:37:46	0
2659584	99	76	68,6	cyclictest	2660821	-21	kworker/u4:9+events_unbound	19:57:30	1
2659584	99	76	68,6	cyclictest	2646764	-21	kworker/u4:3+events_unbound	20:06:39	1
2659582	99	76	69,5	cyclictest	2685408	-21	kworker/u4:12+events_unbound	21:12:41	0
2659582	99	76	69,5	cyclictest	2685408	-21	kworker/u4:12+events_unbound	21:12:40	0
2659584	99	75	67,6	cyclictest	2659515	-21	kworker/u4:5+events_unbound	20:12:31	1
2659584	99	75	66,6	cyclictest	2675092	-21	kworker/u4:10+events_unbound	21:06:53	1
2659584	99	75	57,7	cyclictest	2749917	-21	kworker/u4:0+events_unbound	22:45:01	1
2659582	99	75	68,5	cyclictest	2663423	-21	kworker/u4:15+events_unbound	19:32:28	0
2659584	99	73	62,5	cyclictest	2664704	-21	kworker/u4:17+events_unbound	22:05:14	1
2659584	99	72	65,5	cyclictest	2664705	-21	kworker/u4:18+events_unbound	19:27:26	1
2659582	99	72	65,5	cyclictest	2806615	-21	kworker/u4:12+events_unbound	23:38:08	0
2659582	99	72	55,7	cyclictest	2746017	-21	kworker/u4:4+events_unbound	22:17:01	0
2659584	99	71	64,5	cyclictest	2772593	-21	kworker/u4:14+events_unbound	23:10:01	1
2659584	99	71	63,5	cyclictest	2682807	-21	kworker/u4:1+events_unbound	20:52:38	1
2659582	99	71	63,6	cyclictest	2749919	-21	kworker/u4:5+events_unbound	22:22:05	0
2659582	99	71	52,6	cyclictest	2746017	-21	kworker/u4:4+events_unbound	22:36:37	0
2659584	99	70	64,4	cyclictest	2650638	-21	kworker/u4:4+events_unbound	19:25:01	1
2659584	99	70	63,5	cyclictest	2680243	-21	kworker/u4:3+events_unbound	20:41:49	1
2659582	99	70	62,6	cyclictest	2692650	-21	kworker/u4:4+events_unbound	21:17:43	0
2659584	99	69	62,5	cyclictest	2660820	-21	kworker/u4:8+events_unbound	19:35:01	1
2659584	99	69	59,7	cyclictest	2660809	-21	kworker/u4:6+events_unbound	19:42:29	1
2659584	99	69	53,6	cyclictest	2822330	-21	kworker/u4:9+events_unbound	00:00:02	1
2659582	99	69	64,3	cyclictest	2664704	-21	kworker/u4:17+events_unbound	21:52:47	0
2659584	99	67	61,4	cyclictest	2705150	-21	kworker/u4:5+events_unbound	21:30:01	1
2659584	99	67	61,4	cyclictest	2705150	-21	kworker/u4:5+events_unbound	21:30:00	1
2659584	99	66	57,7	cyclictest	0	-21	swapper/1	22:25:38	1
2659582	99	66	47,12	cyclictest	53	-21	kswapd0	23:30:08	0
2659584	99	65	58,5	cyclictest	2761489	-21	kworker/u4:13+events_unbound	23:22:12	1
2659584	99	65	58,5	cyclictest	2761489	-21	kworker/u4:13+events_unbound	23:22:11	1
2659584	99	64	56,6	cyclictest	2738094	-21	kworker/u4:8+events_unbound	22:12:04	1
2659582	99	64	55,6	cyclictest	2738094	-21	kworker/u4:8+events_unbound	22:12:51	0
2659582	99	64	53,8	cyclictest	2772593	-21	kworker/u4:14+events_unbound	23:07:11	0
2659582	99	63	53,7	cyclictest	2753675	-21	kworker/u4:7+events_unbound	22:27:53	0
2659584	99	62	53,6	cyclictest	2806615	-21	kworker/u4:12+events_unbound	23:40:01	1
2659584	99	62	41,7	cyclictest	2753675	-21	kworker/u4:7+events_unbound	22:30:14	1
2659584	99	61	49,4	cyclictest	2746016	-21	kworker/u4:3+events_unbound	22:20:01	1
2659584	99	61	42,6	cyclictest	2803301	-21	kworker/u4:4+events_unbound	23:35:00	1
2659584	99	60	53,5	cyclictest	2663423	-21	kworker/u4:15+events_unbound	19:51:34	1
2659584	99	60	52,6	cyclictest	2660809	-21	kworker/u4:6+events_unbound	20:22:31	1
2659584	99	59	52,5	cyclictest	2761489	-21	kworker/u4:13+events_unbound	23:02:10	1
2659582	99	59	52,5	cyclictest	2826193	-21	kworker/u4:11+events_unbound	00:05:03	0
2659582	99	57	50,5	cyclictest	2761489	-21	kworker/u4:13+events_unbound	22:42:07	0
2659582	99	57	45,5	cyclictest	2684128	-21	kworker/u4:11+events_unbound	20:45:03	0
2659584	99	56	49,5	cyclictest	2836961	-21	kworker/u4:5+events_unbound	00:30:03	1
2659582	99	56	48,6	cyclictest	2715800	-21	fschecks_count	21:40:19	0
2659582	99	56	48,6	cyclictest	2660819	-21	kworker/u4:7+events_unbound	19:50:03	0
2659582	99	56	40,7	cyclictest	2818383	-21	kworker/u4:0+events_unbound	00:27:15	0
2659584	99	55	47,5	cyclictest	2767134	-21	/usr/sbin/munin	22:45:19	1
2659584	99	55	35,12	cyclictest	2822329	-21	kworker/u4:6+events_unbound	00:10:27	1
2659584	99	55	3,41	cyclictest	2786746	-21	sh	23:10:35	1
2659582	99	55	48,5	cyclictest	2650638	-21	kworker/u4:4+events_unbound	19:25:03	0
2659582	99	54	39,5	cyclictest	2757476	-21	kworker/u4:10+events_unbound	23:03:05	0
2659582	99	54	37,15	cyclictest	2795031	-21	kworker/u4:9+events_unbound	23:42:13	0
2659582	99	53	6,38	cyclictest	2797889	-21	ntpq	23:25:30	0
2659582	99	53	45,6	cyclictest	2794391	-21	/usr/sbin/munin	23:20:40	0
2659582	99	53	45,6	cyclictest	2794391	-21	/usr/sbin/munin	23:20:39	0
2659584	99	52	43,6	cyclictest	2775725	-21	unixbench-2d	22:55:43	1
2659582	99	52	44,6	cyclictest	2682819	-21	kworker/u4:2+events_unbound	20:39:38	0
2659582	99	52	43,7	cyclictest	2728682	-21	ld	21:55:33	0
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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