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 Mar 29, 2026 12:44:09)
Delayed (victim)					Switcher (culprit)			Timestamp	CPU
PID	Prio	Total latency (µs)	T^(,W^*) latency (µs)	Cmd	PID	Prio	Cmd	Timestamp	CPU
532812	99	112	104,6	cyclictest	655605	-21	kworker/u4:7+events_unbound	10:54:58	0
532812	99	106	98,6	cyclictest	588655	-21	kworker/u4:10+events_unbound	10:04:49	0
532812	99	106	98,6	cyclictest	588655	-21	kworker/u4:10+events_unbound	10:04:48	0
532812	99	105	97,6	cyclictest	669069	-21	kworker/u4:5+events_unbound	11:25:10	0
532813	99	93	83,8	cyclictest	717524	-21	kworker/u4:8+events_unbound	12:05:16	1
532812	99	89	82,5	cyclictest	629002	-21	kworker/u4:2+events_unbound	10:49:57	0
532812	99	89	80,6	cyclictest	579574	-21	kworker/u4:4+events_unbound	09:39:43	0
532812	99	83	75,6	cyclictest	629002	-21	kworker/u4:2+events_unbound	10:24:52	0
532812	99	81	56,16	cyclictest	671144	-21	/usr/sbin/munin	11:10:12	0
532812	99	80	71,7	cyclictest	642029	-21	kworker/u4:10+events_unbound	10:39:55	0
532813	99	79	44,32	cyclictest	711897	-21	timerwakeupswit	11:55:39	1
532812	99	79	71,6	cyclictest	704169	-21	kworker/u4:0+events_unbound	12:20:21	0
532812	99	79	71,6	cyclictest	690797	-21	kworker/u4:11+events_unbound	11:35:09	0
532812	99	79	70,6	cyclictest	570436	-21	kworker/u4:10+events_unbound	09:19:39	0
532812	99	77	70,5	cyclictest	534030	-21	kworker/u4:2+events_unbound	07:29:19	0
532812	99	77	67,6	cyclictest	555765	-21	kworker/u4:13+events_unbound	09:05:00	0
532812	99	76	70,4	cyclictest	597083	-21	kworker/u4:3+events_unbound	09:54:46	0
532812	99	76	66,7	cyclictest	551951	-21	kworker/u4:2+events_unbound	09:15:00	0
532812	99	75	67,6	cyclictest	669069	-21	kworker/u4:5+events_unbound	11:40:13	0
532812	99	75	64,8	cyclictest	651127	-21	kworker/u4:1+events_unbound	11:20:00	0
532813	99	73	40,30	cyclictest	649274	-21	aten_r7power_en	10:45:22	1
532812	99	73	66,5	cyclictest	15	1	ktimers/0	10:06:47	0
532812	99	72	63,6	cyclictest	540424	-21	kworker/u4:7+events_unbound	07:50:00	0
532812	99	72	61,8	cyclictest	554496	-21	kworker/u4:10+events_unbound	08:45:00	0
532812	99	70	2,11	cyclictest	557100	-21	apt-get	08:45:08	0
532812	99	69	62,4	cyclictest	593189	-21	kworker/u4:2+events_unbound	09:45:00	0
532813	99	68	8,10	cyclictest	663066	-21	ssh	11:00:28	1
532813	99	68	59,6	cyclictest	579576	-21	kworker/u4:6+events_unbound	09:40:02	1
532812	99	68	61,5	cyclictest	555765	-21	kworker/u4:13+events_unbound	09:10:02	0
532812	99	68	61,5	cyclictest	532810	-21	cyclictest	11:21:06	0
532813	99	67	44,17	cyclictest	0	-21	swapper/1	11:45:16	1
532813	99	67	33,31	cyclictest	706664	-21	ssh	11:50:19	1
532813	99	67	33,31	cyclictest	706664	-21	ssh	11:50:19	1
532813	99	67	32,32	cyclictest	645373	-21	ntpq	10:40:28	1
532813	99	67	31,31	cyclictest	0	-21	swapper/1	10:00:19	1
532813	99	67	31,31	cyclictest	0	-21	swapper/1	10:00:18	1
532813	99	66	36,28	cyclictest	676349	-21	ntpq	11:15:31	1
532813	99	66	35,29	cyclictest	601130	-21	vmstat	09:50:43	1
532813	99	66	32,32	cyclictest	591327	-21	gltestperf	09:40:21	1
532813	99	65	58,5	cyclictest	615346	-21	kworker/u4:12+events_unbound	10:09:49	1
532813	99	65	19,12	cyclictest	626329	-21	modprobe	10:20:00	1
532812	99	65	57,6	cyclictest	673525	-21	kworker/u4:13+events_unbound	11:45:11	0
532812	99	65	49,14	cyclictest	704169	-21	kworker/u4:0+events_unbound	12:19:59	0
532812	99	65	43,20	cyclictest	53	-21	kswapd0	11:00:02	0
532813	99	64	34,26	cyclictest	0	-21	swapper/1	11:35:20	1
532813	99	64	31,31	cyclictest	727995	-21	idleruntime-cro	12:15:00	1
532813	99	64	31,30	cyclictest	0	-21	swapper/1	10:20:19	1
532813	99	64	17,6	cyclictest	698322	-21	ssh	11:40:28	1
532812	99	64	55,7	cyclictest	633560	-21	kworker/u4:0+events_unbound	10:29:00	0
532813	99	63	53,7	cyclictest	640961	-21	ld	10:35:32	1
532813	99	63	4,11	cyclictest	680844	-21	sshd	11:20:34	1
532813	99	63	34,26	cyclictest	544266	-21	kworker/u4:9-xprtiod	08:15:20	1
532813	99	63	29,30	cyclictest	0	-21	swapper/1	09:00:22	1
532813	99	63	24,36	cyclictest	0	-21	swapper/1	12:39:22	1
532813	99	62	55,5	cyclictest	536612	-21	kworker/u4:13+events_unbound	07:35:01	1
532813	99	62	30,29	cyclictest	0	-21	swapper/1	09:45:29	1
532813	99	62	30,29	cyclictest	0	-21	swapper/1	09:15:20	1
532813	99	62	28,31	cyclictest	0	-21	swapper/1	09:25:31	1
532813	99	62	24,35	cyclictest	0	-21	swapper/1	08:25:01	1
532813	99	62	23,37	cyclictest	0	-21	swapper/1	08:45:13	1
532812	99	62	45,7	cyclictest	615343	-21	kworker/u4:5+events_unbound	10:15:33	0
532812	99	62	44,8	cyclictest	748216	-21	kworker/u4:9+events_unbound	12:40:01	0
532813	99	61	49,9	cyclictest	708605	-21	kworker/u4:2+events_unbound	12:30:22	1
532813	99	61	30,27	cyclictest	0	-21	swapper/1	10:55:37	1
532813	99	61	28,29	cyclictest	53	-21	kswapd0	09:20:32	1
532813	99	61	27,30	cyclictest	0	-21	swapper/1	10:25:36	1
532813	99	61	26,32	cyclictest	0	-21	swapper/1	12:20:20	1
532813	99	61	25,33	cyclictest	0	-21	swapper/1	12:00:31	1
532813	99	61	24,35	cyclictest	675263	-21	wc	11:15:00	1
532813	99	61	24,33	cyclictest	0	-21	swapper/1	12:15:26	1
532813	99	61	23,34	cyclictest	0	-21	swapper/1	12:25:46	1
532812	99	61	49,10	cyclictest	540424	-21	kworker/u4:7+events_unbound	07:45:00	0
532813	99	60	25,31	cyclictest	0	-21	swapper/1	10:10:23	1
532813	99	60	25,31	cyclictest	0	-21	swapper/1	10:00:02	1
532813	99	60	24,33	cyclictest	0	-21	swapper/1	08:35:01	1
532813	99	60	24,33	cyclictest	0	-21	swapper/1	07:45:24	1
532812	99	60	53,5	cyclictest	579572	-21	kworker/u4:2+events_unbound	09:35:01	0
532812	99	60	53,5	cyclictest	579572	-21	kworker/u4:2+events_unbound	09:35:00	0
532813	99	59	3,18	cyclictest	667523	-21	ssh	11:05:30	1
532813	99	59	27,28	cyclictest	0	-21	swapper/1	07:25:19	1
532813	99	59	26,30	cyclictest	0	-21	swapper/1	08:55:16	1
532813	99	59	17,6	cyclictest	0	-21	swapper/1	10:30:15	1
532812	99	59	51,6	cyclictest	633564	-21	kworker/u4:5+events_unbound	10:43:00	0
532813	99	58	28,27	cyclictest	0	-21	swapper/1	10:50:34	1
532813	99	58	27,27	cyclictest	0	-21	swapper/1	08:25:29	1
532813	99	58	25,31	cyclictest	555765	-21	kworker/u4:13-rpciod	09:10:18	1
532813	99	58	24,4	cyclictest	581809	-21	/usr/sbin/munin	09:30:19	1
532813	99	58	24,4	cyclictest	581809	-21	/usr/sbin/munin	09:30:19	1
532813	99	58	18,4	cyclictest	0	-21	swapper/1	11:30:36	1
532812	99	58	50,6	cyclictest	597083	-21	kworker/u4:3+events_unbound	09:59:47	0
532812	99	58	43,13	cyclictest	588655	-21	kworker/u4:10+events_unbound	09:45:15	0
532813	99	57	25,29	cyclictest	0	-21	swapper/1	08:40:16	1
532812	99	57	49,6	cyclictest	53	-21	kswapd0	11:50:19	0
532812	99	57	49,6	cyclictest	53	-21	kswapd0	11:50:18	0
532812	99	57	31,21	cyclictest	37	-21	kcompactd0	12:30:15	0
532813	99	56	14,11	cyclictest	1066	-21	snmpd	07:55:33	1
532813	99	55	25,27	cyclictest	0	-21	swapper/1	09:05:21	1
532813	99	55	23,29	cyclictest	0	-21	swapper/1	08:05:39	1
532813	99	55	21,5	cyclictest	0	-21	swapper/1	11:25:18	1
532812	99	55	48,5	cyclictest	549373	-21	kworker/u4:11+events_unbound	08:24:27	0
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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