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 Sat Apr 04, 2026 12:44:10)
Delayed (victim)					Switcher (culprit)			Timestamp	CPU
PID	Prio	Total latency (µs)	T^(,W^*) latency (µs)	Cmd	PID	Prio	Cmd	Timestamp	CPU
393215	99	91	83,5	cyclictest	418835	-21	kworker/u4:4+events_unbound	09:25:43	1
393215	99	86	49,34	cyclictest	0	-21	swapper/1	11:20:24	1
393214	99	84	51,19	cyclictest	53	-21	kswapd0	12:30:12	0
393214	99	81	67,9	cyclictest	470101	-21	kworker/u4:9+events_unbound	10:05:49	0
393214	99	81	67,9	cyclictest	470101	-21	kworker/u4:9+events_unbound	10:05:48	0
393214	99	80	37,12	cyclictest	398583	-21	apt-get	07:30:12	0
393214	99	79	36,13	cyclictest	554992	-21	apt-get	11:40:12	0
393214	99	79	36,13	cyclictest	554992	-21	apt-get	11:40:11	0
393215	99	77	5,16	cyclictest	542813	-21	ssh	11:25:32	1
393215	99	76	42,7	cyclictest	556609	-21	sshd	11:41:07	1
393215	99	76	42,7	cyclictest	556609	-21	sshd	11:41:07	1
393214	99	76	31,22	cyclictest	512598	-21	ntpq	10:50:33	0
393215	99	74	68,4	cyclictest	398381	-21	kworker/u4:12+events_unbound	07:55:01	1
393215	99	73	52,13	cyclictest	528767	-21	modprobe	11:09:59	1
393214	99	72	55,15	cyclictest	565684	-21	kworker/u4:2+xprtiod	11:55:11	0
393215	99	70	60,7	cyclictest	418836	-21	kworker/u4:5+events_unbound	09:15:40	1
393214	99	70	33,12	cyclictest	423510	-21	ntpq	09:05:24	0
393214	99	70	29,21	cyclictest	571964	-21	apt-get	12:00:05	0
393214	99	70	26,22	cyclictest	406783	-21	awk	08:00:24	0
393215	99	69	57,9	cyclictest	412443	-21	kworker/u4:9+events_unbound	08:30:28	1
393214	99	69	34,6	cyclictest	485676	-21	apt-get	10:20:12	0
393215	99	68	57,7	cyclictest	481028	-21	apt-get	10:15:08	1
393214	99	68	27,14	cyclictest	471366	-21	ssh	10:03:27	0
393214	99	67	41,4	cyclictest	551300	-21	ntpq	11:35:23	0
393214	99	67	27,13	cyclictest	590937	-21	ssh	12:20:42	0
393214	99	67	26,15	cyclictest	439164	-21	ssh	09:25:54	0
393215	99	66	58,6	cyclictest	402218	-21	kworker/u4:2+events_unbound	08:45:30	1
393214	99	66	38,9	cyclictest	428798	-21	apt-get	09:15:13	0
393214	99	66	28,11	cyclictest	560800	-21	ssh	11:45:56	0
393215	99	65	12,21	cyclictest	593956	-21	ssh	12:25:16	1
393214	99	65	28,13	cyclictest	586634	-21	ssh	12:15:47	0
393214	99	65	28,12	cyclictest	596790	-21	ssh	12:28:08	0
393214	99	65	27,11	cyclictest	453840	-21	ssh	09:43:21	0
393214	99	65	24,10	cyclictest	516949	-21	ntp_states	10:55:32	0
393214	99	64	39,4	cyclictest	447154	-21	ntpq	09:35:29	0
393214	99	64	27,14	cyclictest	500123	-21	ssh	10:35:49	0
393214	99	64	27,11	cyclictest	434120	-21	ntpq	09:20:34	0
393214	99	64	26,13	cyclictest	542882	-21	ntpq	11:25:35	0
393214	99	64	26,13	cyclictest	478788	-21	ssh	10:11:24	0
393215	99	63	53,7	cyclictest	395815	-21	kworker/u4:6+events_unbound	07:20:02	1
393214	99	63	26,13	cyclictest	459445	-21	ssh	09:50:06	0
393214	99	63	26,12	cyclictest	603052	-21	irqstats	12:35:21	0
393214	99	63	26,12	cyclictest	442854	-21	ntpq	09:30:31	0
393214	99	63	26,12	cyclictest	442854	-21	ntpq	09:30:30	0
393214	99	63	25,14	cyclictest	466547	-21	ssh	09:57:45	0
393214	99	63	25,13	cyclictest	584879	-21	ssh	12:14:56	0
393214	99	63	24,15	cyclictest	483245	-21	ssh	10:16:37	0
393214	99	63	20,25	cyclictest	410256	-21	sed	08:15:17	0
393214	99	63	20,23	cyclictest	529349	-21	diskstats	11:10:17	0
393215	99	62	53,6	cyclictest	182702	-21	kworker/u4:3+events_unbound	08:15:20	1
393215	99	62	46,10	cyclictest	0	-21	swapper/1	11:30:27	1
393214	99	62	44,12	cyclictest	537695	-21	apt-get	11:20:10	0
393214	99	62	25,14	cyclictest	426417	-21	ssh	09:11:45	0
393214	99	62	25,12	cyclictest	494935	-21	irqstats	10:30:21	0
393214	99	62	25,10	cyclictest	525598	-21	ntpq	11:05:32	0
393214	99	62	24,12	cyclictest	422267	-21	ntpq	09:00:25	0
393214	99	62	18,21	cyclictest	537381	-21	ssh	11:19:59	0
393215	99	61	49,10	cyclictest	567904	-21	sh	11:55:07	1
393214	99	61	43,14	cyclictest	399853	-21	apt-get	07:35:11	0
393214	99	61	39,16	cyclictest	507410	-21	apt-get	10:45:12	0
393214	99	61	27,11	cyclictest	416876	-21	grep	08:40:20	0
393214	99	61	25,10	cyclictest	415737	-21	ntpq	08:35:24	0
393214	99	61	23,14	cyclictest	577759	-21	sed	12:05:43	0
393214	99	60	36,8	cyclictest	413241	-21	ntpq	08:25:27	0
393214	99	60	24,13	cyclictest	489929	-21	ssh	10:25:03	0
393214	99	60	24,13	cyclictest	408162	-21	ntp_states	08:05:32	0
393214	99	59	44,12	cyclictest	403691	-21	apt-get	07:50:12	0
393214	99	59	37,18	cyclictest	53	-21	kswapd0	10:40:08	0
393214	99	59	36,8	cyclictest	418335	-21	ntpq	08:45:27	0
393214	99	59	27,9	cyclictest	419620	-21	ntpq	08:50:28	0
393214	99	59	25,12	cyclictest	564445	-21	ntp_states	11:50:32	0
393214	99	59	23,12	cyclictest	522120	-21	ssh	11:01:09	0
393214	99	59	23,10	cyclictest	409384	-21	ntpq	08:10:27	0
393214	99	59	1,39	cyclictest	394624	-21	apt-get	07:15:14	0
393215	99	58	49,6	cyclictest	564468	-21	ld	11:50:32	1
393215	99	58	47,8	cyclictest	420108	-21	kworker/u4:9+events_unbound	08:55:38	1
393214	99	58	25,9	cyclictest	396670	-21	ntpq	07:20:33	0
393214	99	58	18,21	cyclictest	550337	-21	sh	11:34:58	0
393215	99	57	47,7	cyclictest	398381	-21	kworker/u4:12+events_unbound	08:10:19	1
393215	99	57	46,8	cyclictest	487786	-21	kworker/u4:2+events_unbound	10:35:52	1
393215	99	57	45,8	cyclictest	394446	-21	kworker/u4:9+events_unbound	07:15:03	1
393215	99	57	41,9	cyclictest	0	-21	swapper/1	12:30:24	1
393215	99	57	3,50	cyclictest	516788	-21	ssh	10:55:26	1
393214	99	57	41,13	cyclictest	411927	-21	ntpq	08:20:25	0
393214	99	57	40,11	cyclictest	401745	-21	ntpq	07:40:28	0
393215	99	56	47,7	cyclictest	398	-21	systemd-logind	10:20:50	1
393214	99	56	47,6	cyclictest	393657	-21	fschecks_count	07:10:18	0
393214	99	56	42,10	cyclictest	414484	-21	ntpq	08:30:26	0
393214	99	56	25,9	cyclictest	421017	-21	ntpq	08:55:33	0
393214	99	56	22,13	cyclictest	1	-21	systemd	07:50:00	0
393214	99	55	6,30	cyclictest	393210	-21	awk	07:10:01	0
393214	99	55	6,30	cyclictest	393210	-21	awk	07:10:00	0
393214	99	55	41,9	cyclictest	397974	-21	ntpq	07:25:35	0
393214	99	55	22,11	cyclictest	455911	-21	gcc	09:45:27	0
393215	99	54	47,5	cyclictest	544378	-21	kworker/u4:8+events_unbound	11:36:59	1
393214	99	54	39,11	cyclictest	405614	-21	ntpq	07:55:33	0
393215	99	53	7,33	cyclictest	603304	-21	ssh	12:35:31	1
393215	99	53	2,35	cyclictest	469053	-21	ssh	10:00:29	1
393215	99	52	43,7	cyclictest	521949	-21	systemd	11:00:54	1
393215	99	51	44,5	cyclictest	403488	-21	kworker/u4:5+events_unbound	08:05:19	1
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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