OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of system in rack #7, slot #2

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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 792 highest latencies:

System rack7slot2.osadl.org (updated Tue Jul 07, 2026 00:44:08)
Delayed (victim)					Switcher (culprit)			Timestamp	CPU
PID	Prio	Total latency (µs)	T^(,W^*) latency (µs)	Cmd	PID	Prio	Cmd	Timestamp	CPU
2726127	99	102	81,18	cyclictest	2834195	-21	kworker/u4:1+events_unbound	22:47:48	0
2726128	99	98	90,6	cyclictest	2908888	-21	kworker/u4:4+events_unbound	00:33:01	1
2726127	99	89	58,28	cyclictest	53	-21	kswapd0	21:50:09	0
2726127	99	88	78,7	cyclictest	2917799	-21	kworker/u4:12+events_unbound	00:22:56	0
2726127	99	86	51,6	cyclictest	2836473	-21	/usr/sbin/munin	22:40:17	0
2726127	99	78	70,6	cyclictest	2908890	-21	kworker/u4:6+events_unbound	00:02:55	0
2726128	99	72	39,30	cyclictest	0	-21	swapper/1	23:35:14	1
2726127	99	71	59,8	cyclictest	53	-21	kswapd0	21:50:01	0
2726127	99	71	49,5	cyclictest	2878292	-21	kworker/u4:3+events_unbound	23:27:51	0
2726128	99	70	38,30	cyclictest	2911180	-21	aten_r7power_en	00:05:17	1
2726127	99	69	62,5	cyclictest	2882127	-21	kworker/u4:20+events_unbound	23:57:53	0
2726128	99	66	2,21	cyclictest	2831892	-21	ssh	22:35:15	1
2726127	99	66	49,8	cyclictest	2853615	-21	kworker/u4:4	23:00:00	0
2726128	99	65	41,22	cyclictest	2766115	-21	proc_pri	21:20:38	1
2726128	99	65	35,26	cyclictest	0	-21	swapper/1	22:10:24	1
2726128	99	65	32,30	cyclictest	0	-21	swapper/1	23:50:35	1
2726128	99	64	4,20	cyclictest	2814194	-21	ssh	22:15:13	1
2726128	99	64	30,30	cyclictest	0	-21	swapper/1	00:25:02	1
2726128	99	64	28,32	cyclictest	0	-21	swapper/1	21:40:38	1
2726128	99	63	35,26	cyclictest	2920079	-21	grep	00:15:19	1
2726128	99	63	33,28	cyclictest	2823447	-21	fschecks_time	22:25:21	1
2726128	99	63	32,29	cyclictest	2730457	-21	aten_r7power_vo	19:30:17	1
2726128	99	63	2,19	cyclictest	2889813	-21	ssh	23:40:24	1
2726127	99	63	51,7	cyclictest	2878294	-21	kworker/u4:5-rpciod	23:38:50	0
2726127	99	63	42,5	cyclictest	2935605	-21	kworker/u4:14+events_unbound	00:33:03	0
2726128	99	62	52,7	cyclictest	2755762	-21	kworker/u4:13+events_unbound	21:17:34	1
2726128	99	62	33,26	cyclictest	2726124	-21	cyclictest	22:58:50	1
2726128	99	62	29,31	cyclictest	0	-21	swapper/1	00:00:21	1
2726128	99	62	29,29	cyclictest	0	-21	swapper/1	23:20:37	1
2726128	99	62	29,29	cyclictest	0	-21	swapper/1	21:25:18	1
2726128	99	62	2,17	cyclictest	2840990	-21	ssh	22:45:18	1
2726127	99	62	54,6	cyclictest	2724839	-21	kworker/u4:0+events_unbound	19:37:24	0
2726128	99	61	34,25	cyclictest	0	-21	swapper/1	00:25:32	1
2726128	99	61	33,24	cyclictest	2843189	-21	kworker/u4:8-xprtiod	22:50:19	1
2726128	99	61	32,26	cyclictest	2805587	-21	df_abs	22:05:16	1
2726128	99	61	28,31	cyclictest	2726124	-21	cyclictest	21:55:21	1
2726128	99	61	26,31	cyclictest	0	-21	swapper/1	19:50:33	1
2726128	99	60	31,27	cyclictest	0	-21	swapper/1	22:40:24	1
2726128	99	60	30,27	cyclictest	0	-21	swapper/1	00:10:33	1
2726128	99	60	27,31	cyclictest	2854569	-21	netstat	23:00:23	1
2726127	99	60	51,6	cyclictest	2834195	-21	kworker/u4:1+events_unbound	22:37:47	0
2726128	99	59	31,26	cyclictest	2873871	-21	kworker/u4:1-rpciod	23:25:22	1
2726128	99	59	29,28	cyclictest	0	-21	swapper/1	21:45:27	1
2726128	99	59	28,28	cyclictest	0	-21	swapper/1	23:45:38	1
2726128	99	59	28,28	cyclictest	0	-21	swapper/1	22:20:33	1
2726128	99	59	26,31	cyclictest	2729105	-21	aten_r7power_cu	19:25:17	1
2726128	99	59	15,41	cyclictest	0	-21	swapper/1	20:45:30	1
2726127	99	59	46,7	cyclictest	2932746	-21	latency_hist	00:30:01	0
2726128	99	58	5,6	cyclictest	2756977	-21	ntpq	21:10:35	1
2726128	99	58	49,7	cyclictest	2744280	-21	systemd	20:22:30	1
2726128	99	58	48,8	cyclictest	2755755	-21	kworker/u4:0+events_unbound	21:50:03	1
2726128	99	58	29,26	cyclictest	0	-21	swapper/1	22:30:33	1
2726128	99	58	2,15	cyclictest	2752670	-21	ntpq	20:55:27	1
2726128	99	58	1,14	cyclictest	2902261	-21	ssh	23:55:08	1
2726127	99	58	50,6	cyclictest	2736587	-21	kworker/u4:4+events_unbound	20:52:33	0
2726127	99	58	46,8	cyclictest	2756280	-21	basename	21:10:18	0
2726127	99	58	45,11	cyclictest	256	50	irq/23-42890000.ethernet	19:50:11	0
2726128	99	57	29,25	cyclictest	0	-21	swapper/1	19:55:40	1
2726128	99	57	27,27	cyclictest	0	-21	swapper/1	21:35:32	1
2726128	99	57	27,26	cyclictest	0	-21	swapper/1	20:30:02	1
2726128	99	57	27,26	cyclictest	0	-21	swapper/1	20:30:01	1
2726128	99	57	26,28	cyclictest	0	-21	swapper/1	19:35:18	1
2726127	99	57	45,8	cyclictest	2915171	-21	cat	00:10:02	0
2726128	99	56	3,18	cyclictest	2775005	-21	ntpq	21:30:34	1
2726128	99	56	27,27	cyclictest	0	-21	swapper/1	22:00:20	1
2726128	99	56	25,26	cyclictest	0	-21	swapper/1	20:50:19	1
2726128	99	56	24,29	cyclictest	0	-21	swapper/1	23:15:41	1
2726128	99	56	22,31	cyclictest	0	-21	swapper/1	23:10:24	1
2726127	99	56	47,7	cyclictest	2753189	-21	systemd	20:57:33	0
2726128	99	55	28,23	cyclictest	0	-21	swapper/1	23:05:23	1
2726128	99	55	24,28	cyclictest	2733231	-21	fschecks_time	19:40:19	1
2726128	99	55	2,12	cyclictest	2754666	-21	/usr/sbin/munin	21:05:40	1
2726128	99	55	14,5	cyclictest	2881189	-21	ntpq	23:30:33	1
2726127	99	55	47,6	cyclictest	2779697	-21	/usr/sbin/munin	21:35:40	0
2726127	99	55	46,6	cyclictest	2815528	-21	who	22:15:40	0
2726128	99	54	3,17	cyclictest	2738719	-21	ntpq	20:00:31	1
2726128	99	54	24,27	cyclictest	0	-21	swapper/1	20:15:34	1
2726128	99	54	2,13	cyclictest	2734703	-21	ntpq	19:45:22	1
2726127	99	54	8,38	cyclictest	2898667	-21	ssh	23:50:30	0
2726127	99	54	46,5	cyclictest	37	-21	kcompactd0	21:55:34	0
2726127	99	54	39,12	cyclictest	2746843	-21	cron	20:34:59	0
2726127	99	54	22,14	cyclictest	2810430	-21	ssh	22:10:24	0
2726128	99	53	22,29	cyclictest	0	-21	swapper/1	20:45:01	1
2726128	99	53	22,28	cyclictest	0	-21	swapper/1	20:05:18	1
2726127	99	53	5,25	cyclictest	2894308	-21	ssh	23:45:31	0
2726127	99	53	46,5	cyclictest	2872405	-21	ssh	23:20:34	0
2726127	99	53	46,5	cyclictest	2736586	-21	kworker/u4:3+events_unbound	21:19:45	0
2726128	99	52	19,30	cyclictest	0	-21	swapper/1	00:36:48	1
2726128	99	52	12,10	cyclictest	2746581	-21	sed	20:30:36	1
2726127	99	52	43,5	cyclictest	37	-21	kcompactd0	22:20:14	0
2726127	99	52	41,8	cyclictest	2770333	-21	ntpq	21:25:27	0
2726127	99	52	40,10	cyclictest	53	-21	kswapd0	23:30:19	0
2726127	99	52	39,5	cyclictest	256	50	irq/23-42890000.ethernet	22:30:30	0
2726127	99	52	33,14	cyclictest	2863069	-21	fschecks_count	23:10:21	0
2726128	99	51	43,6	cyclictest	2726272	-21	systemd	19:12:19	1
2726128	99	51	14,6	cyclictest	2747446	-21	gltestperf	20:35:20	1
2726128	99	51	13,7	cyclictest	2741157	-21	awk	20:10:21	1
2726127	99	51	43,6	cyclictest	2738867	-21	cat	20:00:37	0
2726127	99	51	34,10	cyclictest	2878297	-21	kworker/u4:9-xprtiod	23:41:38	0
2726127	99	51	30,18	cyclictest	0	-21	swapper/0	21:20:30	0
2726128	99	50	42,6	cyclictest	2720820	-21	kworker/u4:5+events_unbound	19:10:01	1
2726128	99	50	15,3	cyclictest	0	-21	swapper/1	19:15:36	1
2726127	99	50	40,7	cyclictest	2855986	-21	kworker/u4:14+events_unbound	23:10:00	0
2726128	99	49	2,13	cyclictest	2727762	-21	/usr/sbin/munin	19:20:24	1
2726128	99	49	1,14	cyclictest	2754466	-21	users	21:00:44	1
2726127	99	49	26,20	cyclictest	2733211	-21	fschecks_time	19:40:20	0
2726127	99	48	40,5	cyclictest	2783902	-21	/usr/sbin/munin	21:40:29	0
2726127	99	48	28,17	cyclictest	0	-21	swapper/0	21:30:30	0
2726127	99	47	39,5	cyclictest	2805848	-21	gltestperf	22:05:19	0
2726127	99	47	39,5	cyclictest	2727471	-21	unixbench_multi	19:15:35	0
2726127	99	47	38,6	cyclictest	2747254	-21	fschecks_count	20:35:19	0
2726127	99	47	36,7	cyclictest	2920984	-21	cat	00:15:42	0
2726127	99	46	40,4	cyclictest	0	-21	swapper/0	20:27:30	0
2726127	99	46	40,4	cyclictest	0	-21	swapper/0	20:27:30	0
2726127	99	46	39,5	cyclictest	2719518	-21	kworker/u4:2+events_unbound	19:12:20	0
2726127	99	46	38,6	cyclictest	2741700	-21	kworker/u4:8+events_unbound	20:42:31	0
2726127	99	46	37,6	cyclictest	2908889	-21	kworker/u4:5+events_unbound	00:10:21	0
2726127	99	46	37,6	cyclictest	2746813	-21	kworker/u4:15-rpciod	20:45:16	0
2726127	99	46	25,17	cyclictest	0	-21	swapper/0	22:50:16	0
2726127	99	45	37,6	cyclictest	2802042	-21	awk	22:00:37	0
2726127	99	45	36,6	cyclictest	2741368	-21	sendmail_mailqu	20:10:35	0
2726127	99	45	36,6	cyclictest	2730644	-21	fschecks_time	19:30:19	0
2726127	99	45	35,7	cyclictest	2735298	-21	latency_hist	19:50:00	0
2726127	99	45	35,6	cyclictest	2868076	-21	grep	23:15:40	0
2726127	99	44	6,27	cyclictest	2823792	-21	ssh	22:25:30	0
2726127	99	44	34,7	cyclictest	400	-21	systemd-logind	00:39:45	0
2726127	99	43	35,6	cyclictest	2727552	-21	kworker/u4:7+events_unbound	19:22:21	0
2726127	99	43	35,5	cyclictest	2744311	-21	idleruntime-cro	20:25:00	0
2726127	99	43	33,7	cyclictest	2755007	-21	fschecks_time	21:05:20	0
2726127	99	42	23,16	cyclictest	0	-21	swapper/0	23:00:21	0
2726127	99	41	3,31	cyclictest	2742999	-21	modprobe	20:19:59	0
2726127	99	41	32,7	cyclictest	2753512	-21	aten_r7power_po	21:00:16	0
2726127	99	41	31,7	cyclictest	2737005	-21	df_abs	19:55:19	0
2726127	99	40	28,7	cyclictest	0	-21	swapper/0	20:05:25	0
2726127	99	40	20,16	cyclictest	2729820	-21	/usr/sbin/munin	19:25:39	0
2726127	99	39	26,8	cyclictest	2726238	-21	ls	19:10:02	0
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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