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 Wed Aug 27, 2025 00:44:07)
Delayed (victim)					Switcher (culprit)			Timestamp	CPU
PID	Prio	Total latency (µs)	T^(,W^*) latency (µs)	Cmd	PID	Prio	Cmd	Timestamp	CPU
881482	99	108	98,7	cyclictest	985875	-21	kworker/u4:5+events_unbound	23:03:07	1
881482	99	108	98,7	cyclictest	985875	-21	kworker/u4:5+events_unbound	23:03:07	1
881482	99	107	94,7	cyclictest	965841	-21	kworker/u4:7+events_unbound	22:17:56	1
881481	99	102	50,47	cyclictest	53	-21	kswapd0	21:20:11	0
881482	99	90	83,5	cyclictest	1057750	-21	kworker/u4:13+events_unbound	00:33:19	1
881482	99	90	76,5	cyclictest	1047798	-21	kworker/u4:1+events_unbound	00:03:12	1
881482	99	89	82,5	cyclictest	894261	-21	kworker/u4:8+events_unbound	20:27:38	1
881481	99	88	79,6	cyclictest	973906	-21	kworker/u4:2+events_unbound	22:58:01	0
881482	99	87	79,6	cyclictest	887849	-21	kworker/u4:12+events_unbound	19:32:29	1
881482	99	87	78,6	cyclictest	894262	-21	kworker/u4:10+events_unbound	20:22:38	1
881482	99	87	73,5	cyclictest	993282	-21	kworker/u4:3+events_unbound	22:58:05	1
881482	99	85	79,5	cyclictest	1028480	-21	kworker/u4:8+events_unbound	23:43:08	1
881482	99	84	78,5	cyclictest	905832	-21	kworker/u4:2+events_unbound	21:12:51	1
881482	99	83	75,6	cyclictest	903255	-21	kworker/u4:1+events_unbound	20:42:41	1
881481	99	83	12,27	cyclictest	257	50	irq/23-42890000.ethernet	00:25:33	0
881482	99	82	66,6	cyclictest	887846	-21	kworker/u4:6+events_unbound	19:37:30	1
881481	99	82	4,37	cyclictest	0	-21	swapper/0	00:20:39	0
881482	99	78	71,5	cyclictest	894259	-21	kworker/u4:6+events_unbound	19:57:34	1
881482	99	78	70,6	cyclictest	869717	-21	kworker/u4:15+events_unbound	19:17:26	1
881482	99	78	65,5	cyclictest	903255	-21	kworker/u4:1+events_unbound	20:52:42	1
881481	99	77	69,5	cyclictest	894261	-21	kworker/u4:8+events_unbound	20:00:02	0
881482	99	76	69,5	cyclictest	899402	-21	kworker/u4:11+events_unbound	20:37:40	1
881482	99	76	68,6	cyclictest	895564	-21	kworker/u4:14+events_unbound	20:32:45	1
881481	99	76	38,35	cyclictest	1015932	-21	/usr/sbin/munin	23:20:43	0
881481	99	76	3,70	cyclictest	0	-21	swapper/0	00:05:30	0
881482	99	75	68,5	cyclictest	1050913	-21	kworker/u4:13+events_unbound	00:08:13	1
881481	99	75	43,29	cyclictest	944998	-21	uname	21:50:39	0
881481	99	75	43,29	cyclictest	944998	-21	uname	21:50:39	0
881482	99	73	66,5	cyclictest	891701	-21	kworker/u4:5+events_unbound	20:02:41	1
881482	99	72	65,5	cyclictest	942365	-21	kworker/u4:3+events_unbound	21:47:56	1
881481	99	72	39,30	cyclictest	968475	-21	/usr/sbin/munin	22:20:29	0
881482	99	71	64,5	cyclictest	894262	-21	kworker/u4:10+events_unbound	21:07:51	1
881481	99	71	34,5	cyclictest	979756	-21	aten_r7power_en	22:35:17	0
881481	99	71	32,7	cyclictest	0	-21	swapper/0	22:00:39	0
881481	99	71	31,8	cyclictest	882735	-21	cron	19:15:00	0
881482	99	69	61,6	cyclictest	950364	-21	kworker/u4:11+events_unbound	22:02:59	1
881482	99	69	61,6	cyclictest	876493	-21	kworker/u4:5+events_unbound	19:22:29	1
881481	99	69	30,7	cyclictest	0	-21	swapper/0	21:55:35	0
881481	99	68	60,6	cyclictest	965837	-21	kworker/u4:2+events_unbound	22:18:01	0
881481	99	68	33,5	cyclictest	985875	-21	kworker/u4:5-rpciod	23:05:40	0
881481	99	68	29,7	cyclictest	1055898	-21	aten_r7power_vo	00:15:18	0
881482	99	67	60,5	cyclictest	898115	-21	kworker/u4:1+events_unbound	20:12:42	1
881481	99	67	59,6	cyclictest	881412	-21	kworker/u4:6+events_unbound	19:10:01	0
881481	99	67	33,8	cyclictest	1070070	-21	/usr/sbin/munin	00:35:29	0
881481	99	67	29,6	cyclictest	0	-21	swapper/0	19:25:40	0
881482	99	66	58,6	cyclictest	894260	-21	kworker/u4:7+events_unbound	21:02:51	1
881481	99	66	57,7	cyclictest	53	-21	kswapd0	23:30:01	0
881481	99	66	32,6	cyclictest	883229	-21	fschecks_time	19:15:21	0
881482	99	65	58,5	cyclictest	891701	-21	kworker/u4:5+events_unbound	20:05:02	1
881481	99	65	58,5	cyclictest	922448	-21	kworker/u4:7+events_unbound	21:37:47	0
881481	99	65	58,5	cyclictest	922448	-21	kworker/u4:7+events_unbound	21:37:47	0
881481	99	65	34,5	cyclictest	1054273	-21	kworker/u4:17-rpciod	00:30:32	0
881481	99	65	32,6	cyclictest	0	-21	swapper/0	23:10:34	0
881481	99	65	30,7	cyclictest	912435	-21	latency_hist	21:10:01	0
881482	99	64	57,5	cyclictest	865835	-21	kworker/u4:0+events_unbound	19:12:25	1
881482	99	63	56,5	cyclictest	989359	-21	kworker/u4:12+events_unbound	22:48:04	1
881481	99	62	50,9	cyclictest	889122	-21	kworker/u4:2+events_unbound	20:20:00	0
881481	99	62	50,9	cyclictest	889122	-21	kworker/u4:2+events_unbound	20:20:00	0
881482	99	61	54,4	cyclictest	0	-21	swapper/1	22:10:37	1
881482	99	59	6,46	cyclictest	909266	-21	sshd	20:55:28	1
881482	99	59	49,7	cyclictest	1018770	-21	dpkg	23:25:16	1
881482	99	59	45,6	cyclictest	973907	-21	kworker/u4:3+events_unbound	22:43:05	1
881482	99	59	41,15	cyclictest	0	-21	swapper/1	22:20:40	1
881482	99	57	47,7	cyclictest	969881	-21	kworker/u4:11+events_unbound	22:29:36	1
881482	99	57	44,6	cyclictest	1057748	-21	kworker/u4:11+events_unbound	00:21:00	1
881481	99	57	46,9	cyclictest	1054644	-21	systemd	00:13:11	0
881481	99	57	40,5	cyclictest	957792	-21	kworker/u4:13+events_unbound	22:13:01	0
881481	99	57	39,16	cyclictest	1000287	-21	cat	23:00:47	0
881481	99	57	39,16	cyclictest	1000287	-21	cat	23:00:47	0
881481	99	56	48,6	cyclictest	930831	-21	ssh	21:32:53	0
881481	99	56	48,6	cyclictest	925074	-21	/usr/sbin/munin	21:25:24	0
881481	99	56	36,17	cyclictest	987859	-21	fschecks_count	22:45:20	0
881481	99	55	48,5	cyclictest	1039137	-21	sendmail_mailqu	23:50:39	0
881482	99	54	48,5	cyclictest	973906	-21	kworker/u4:2+events_unbound	23:05:12	1
881482	99	54	44,7	cyclictest	0	-21	swapper/1	22:05:25	1
881482	99	54	43,5	cyclictest	1047798	-21	kworker/u4:1+events_unbound	00:25:59	1
881482	99	54	40,11	cyclictest	0	-21	swapper/1	00:15:35	1
881481	99	54	36,16	cyclictest	979369	-21	munin-plugin-st	22:34:59	0
881482	99	53	46,5	cyclictest	894259	-21	kworker/u4:6+events_unbound	20:17:00	1
881482	99	53	46,5	cyclictest	894259	-21	kworker/u4:6+events_unbound	20:17:00	1
881482	99	53	45,6	cyclictest	985875	-21	kworker/u4:5+events_unbound	23:20:00	1
881481	99	53	47,4	cyclictest	0	-21	swapper/0	23:35:37	0
881481	99	53	43,7	cyclictest	53	-21	kswapd0	23:55:20	0
881481	99	53	34,13	cyclictest	971609	-21	ssh	22:25:02	0
881482	99	52	44,6	cyclictest	889121	-21	kworker/u4:1+events_unbound	19:42:39	1
881482	99	52	44,5	cyclictest	1043235	-21	unixbench-2d	23:55:40	1
881482	99	52	42,7	cyclictest	969881	-21	kworker/u4:11+events_unbound	22:32:58	1
881481	99	52	40,10	cyclictest	1046523	-21	netstat	00:00:24	0
881482	99	51	44,5	cyclictest	992630	-21	/usr/sbin/munin	22:50:41	1
881482	99	51	41,7	cyclictest	1034682	-21	df_abs	23:45:23	1
881481	99	51	43,6	cyclictest	1017105	-21	kworker/u4:2+events_unbound	23:33:09	0
881482	99	50	40,8	cyclictest	398	-21	systemd-logind	21:42:55	1
881481	99	50	5,43	cyclictest	0	-21	swapper/0	21:45:26	0
881481	99	50	32,16	cyclictest	1011400	-21	gltestperf	23:15:24	0
881481	99	50	30,18	cyclictest	0	-21	swapper/0	20:55:36	0
881482	99	49	40,6	cyclictest	881480	-21	cyclictest	22:35:29	1
881482	99	48	42,4	cyclictest	1053364	-21	timerwakeupswit	00:10:42	1
881482	99	48	41,5	cyclictest	930337	-21	kworker/u4:0+events_unbound	21:36:00	1
881482	99	48	41,5	cyclictest	930337	-21	kworker/u4:0+events_unbound	21:35:59	1
881482	99	48	41,5	cyclictest	892976	-21	kworker/u4:9+events_unbound	19:51:37	1
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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