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 Sun Jul 19, 2026 00:44:09)
Delayed (victim)					Switcher (culprit)			Timestamp	CPU
PID	Prio	Total latency (µs)	T^(,W^*) latency (µs)	Cmd	PID	Prio	Cmd	Timestamp	CPU
2764179	99	84	37,44	cyclictest	0	-21	swapper/0	23:15:46	0
2764179	99	81	45,3	cyclictest	256	50	irq/23-42890000.ethernet	22:35:01	0
2764179	99	80	44,7	cyclictest	2790166	-21	df	20:50:19	0
2764179	99	79	12,18	cyclictest	2969348	-21	ssh	00:25:29	0
2764179	99	79	12,18	cyclictest	2969348	-21	ssh	00:25:29	0
2764180	99	74	3,22	cyclictest	2901716	-21	ssh	23:10:12	1
2764180	99	74	25,28	cyclictest	0	-21	swapper/1	00:15:01	1
2764179	99	71	9,19	cyclictest	2902396	-21	ssh	23:10:24	0
2764179	99	70	63,4	cyclictest	2834934	-21	cron	21:55:00	0
2764180	99	69	38,28	cyclictest	2804632	-21	gltestperf	21:20:20	1
2764180	99	69	26,39	cyclictest	2822176	-21	diskstats	21:40:16	1
2764179	99	69	50,10	cyclictest	2977168	-21	kworker/u4:1	00:35:00	0
2764179	99	68	63,3	cyclictest	2785942	-21	kworker/u4:9+events_unbound	20:57:39	0
2764180	99	67	62,3	cyclictest	2855039	-21	kworker/u4:2+events_unbound	22:38:03	1
2764180	99	67	38,26	cyclictest	2922058	-21	kworker/u4:16-rpciod	23:50:32	1
2764180	99	67	36,28	cyclictest	2959735	-21	aten2__	00:15:16	1
2764179	99	67	57,7	cyclictest	2819617	-21	kworker/u4:10+events_unbound	21:37:51	0
2764179	99	66	56,7	cyclictest	2948601	-21	kworker/u4:12+events_unbound	00:03:23	0
2764180	99	65	43,19	cyclictest	0	-21	swapper/1	00:20:16	1
2764180	99	65	33,28	cyclictest	0	-21	swapper/1	22:40:18	1
2764179	99	65	44,6	cyclictest	2802269	-21	kworker/u4:13+events_unbound	21:17:46	0
2764180	99	64	34,27	cyclictest	2861588	-21	latency_hist	22:25:02	1
2764180	99	63	48,10	cyclictest	2893739	-21	gcc	23:00:35	1
2764180	99	63	29,30	cyclictest	0	-21	swapper/1	20:55:29	1
2764180	99	63	27,32	cyclictest	0	-21	swapper/1	00:30:01	1
2764180	99	63	27,32	cyclictest	0	-21	swapper/1	00:30:00	1
2764180	99	62	40,20	cyclictest	2774959	-21	fschecks_time	19:50:20	1
2764180	99	62	3,19	cyclictest	2831639	-21	ssh	21:50:33	1
2764180	99	62	24,35	cyclictest	0	-21	swapper/1	21:30:28	1
2764180	99	62	2,14	cyclictest	2786713	-21	ntpq	20:35:27	1
2764180	99	61	4,18	cyclictest	2906229	-21	ssh	23:15:20	1
2764180	99	61	33,26	cyclictest	2866841	-21	ssh	22:30:21	1
2764180	99	61	30,28	cyclictest	0	-21	swapper/1	22:50:34	1
2764180	99	61	29,30	cyclictest	2766852	-21	latency_hist	19:20:00	1
2764180	99	61	29,29	cyclictest	0	-21	swapper/1	22:25:22	1
2764180	99	61	28,30	cyclictest	0	-21	swapper/1	23:05:34	1
2764180	99	61	27,31	cyclictest	0	-21	swapper/1	22:15:29	1
2764179	99	61	51,8	cyclictest	378	-21	dbus-daemon	00:23:27	0
2764179	99	61	48,8	cyclictest	2873077	-21	kworker/u4:6-xprtiod	23:05:12	0
2764180	99	60	7,9	cyclictest	2929420	-21	ntpq	23:40:38	1
2764180	99	60	4,8	cyclictest	2836060	-21	ntpq	21:55:32	1
2764180	99	60	36,22	cyclictest	2774226	-21	timerandwakeup	19:45:38	1
2764180	99	60	34,24	cyclictest	0	-21	swapper/1	21:45:29	1
2764180	99	60	34,24	cyclictest	0	-21	swapper/1	21:45:28	1
2764180	99	60	3,16	cyclictest	2809307	-21	ssh	21:25:29	1
2764180	99	60	31,26	cyclictest	0	-21	swapper/1	19:35:00	1
2764180	99	60	29,28	cyclictest	0	-21	swapper/1	23:27:25	1
2764180	99	60	29,28	cyclictest	0	-21	swapper/1	22:13:25	1
2764180	99	60	25,33	cyclictest	2920753	-21	timerwakeupswit	23:30:40	1
2764180	99	60	1,15	cyclictest	2795228	-21	ssh	21:10:07	1
2764179	99	60	46,9	cyclictest	0	-21	swapper/0	00:15:34	0
2764180	99	59	51,6	cyclictest	2769346	-21	kworker/u4:10+events_unbound	20:00:00	1
2764180	99	59	31,25	cyclictest	2843979	-21	latency_hist	22:05:02	1
2764180	99	59	30,26	cyclictest	0	-21	swapper/1	21:05:01	1
2764180	99	59	29,27	cyclictest	0	-21	swapper/1	00:30:39	1
2764180	99	59	23,33	cyclictest	0	-21	swapper/1	23:35:30	1
2764180	99	59	18,36	cyclictest	2911499	-21	ssh	23:20:36	1
2764180	99	59	16,38	cyclictest	2782244	-21	sort	20:20:01	1
2764179	99	59	52,5	cyclictest	2957596	-21	kworker/u4:1+events_unbound	00:15:00	0
2764179	99	59	50,6	cyclictest	2951785	-21	/usr/sbin/munin	00:05:39	0
2764180	99	58	48,7	cyclictest	2890390	-21	kworker/u4:15+events_unbound	22:58:07	1
2764180	99	58	32,23	cyclictest	0	-21	swapper/1	20:50:22	1
2764180	99	58	27,28	cyclictest	0	-21	swapper/1	00:00:45	1
2764180	99	58	26,30	cyclictest	2833172	-21	kworker/u4:12-rpciod	22:05:18	1
2764179	99	58	49,6	cyclictest	2810658	-21	kworker/u4:9+events_unbound	21:29:45	0
2764180	99	57	2,14	cyclictest	2794374	-21	ntpq	21:05:25	1
2764180	99	56	3,17	cyclictest	2942612	-21	ssh	23:55:30	1
2764180	99	56	3,12	cyclictest	2951727	-21	ps	00:05:37	1
2764180	99	56	27,27	cyclictest	0	-21	swapper/1	20:45:36	1
2764180	99	56	27,26	cyclictest	0	-21	swapper/1	23:45:24	1
2764180	99	56	27,26	cyclictest	0	-21	swapper/1	20:10:39	1
2764180	99	56	17,35	cyclictest	2821610	-21	munin-run	21:40:01	1
2764179	99	56	46,7	cyclictest	2770609	-21	kworker/u4:14+events_unbound	19:57:25	0
2764179	99	56	38,12	cyclictest	2883710	-21	modprobe	22:50:00	0
2764180	99	55	9,8	cyclictest	1073	-21	snmpd	20:23:22	1
2764180	99	55	9,8	cyclictest	1073	-21	snmpd	20:23:21	1
2764180	99	55	25,27	cyclictest	0	-21	swapper/1	19:35:19	1
2764180	99	55	25,27	cyclictest	0	-21	swapper/1	19:20:40	1
2764180	99	55	2,14	cyclictest	37	-21	kcompactd0	20:02:29	1
2764180	99	55	2,13	cyclictest	2800424	-21	ntpq	21:15:30	1
2764180	99	55	21,31	cyclictest	0	-21	swapper/1	19:10:15	1
2764179	99	55	46,6	cyclictest	2942192	-21	fschecks_count	23:55:19	0
2764179	99	55	43,8	cyclictest	2774836	-21	df	19:50:17	0
2764179	99	55	12,29	cyclictest	2764178	-21	modprobe	19:09:59	0
2764180	99	54	23,28	cyclictest	0	-21	swapper/1	20:45:02	1
2764180	99	54	2,18	cyclictest	2880445	-21	ssh	22:45:33	1
2764179	99	54	47,5	cyclictest	2837689	-21	kworker/u4:10+events_unbound	22:07:56	0
2764179	99	54	35,17	cyclictest	2874857	-21	munin-run	22:40:00	0
2764180	99	53	2,15	cyclictest	2779219	-21	ps	20:05:38	1
2764180	99	53	17,32	cyclictest	0	-21	swapper/1	00:35:39	1
2764180	99	53	1,12	cyclictest	2785511	-21	ntpq	20:30:32	1
2764180	99	53	1,12	cyclictest	2785511	-21	ntpq	20:30:31	1
2764179	99	53	29,5	cyclictest	0	-21	swapper/0	23:25:30	0
2764180	99	52	2,11	cyclictest	37	-21	kcompactd0	19:27:31	1
2764179	99	52	43,7	cyclictest	2824167	-21	kworker/u4:11+events_unbound	22:17:58	0
2764179	99	52	37,9	cyclictest	0	-21	swapper/0	22:50:29	0
2764180	99	51	22,27	cyclictest	2764176	-21	cyclictest	19:40:10	1
2764179	99	51	43,6	cyclictest	2962149	-21	kworker/u4:4+events_unbound	00:38:32	0
2764179	99	51	42,6	cyclictest	2894091	-21	grep	23:00:41	0
2764179	99	51	42,6	cyclictest	2773211	-21	sh	19:45:01	0
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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