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 highest latencies:

System rack7slot2.osadl.org (updated Thu Aug 27, 2026 12:44:08)
Delayed (victim)					Switcher (culprit)			Timestamp	CPU
PID	Prio	Total latency (µs)	T^(,W^*) latency (µs)	Cmd	PID	Prio	Cmd	Timestamp	CPU
826015	99	119	101,9	cyclictest	859473	-21	kworker/u4:5+events_unbound	09:15:33	1
826015	99	104	96,6	cyclictest	856726	-21	kworker/u4:0+events_unbound	09:10:33	1
826015	99	97	90,5	cyclictest	1019957	-21	kworker/u4:2+events_unbound	12:21:06	1
826014	99	96	88,6	cyclictest	979823	-21	kworker/u4:5+events_unbound	11:30:57	0
826014	99	94	82,10	cyclictest	988902	-21	kworker/u4:1+events_unbound	11:40:59	0
826015	99	93	87,4	cyclictest	908074	-21	kworker/u4:3+events_unbound	10:10:43	1
826014	99	90	83,5	cyclictest	966102	-21	kworker/u4:0+events_unbound	11:15:55	0
826015	99	89	73,6	cyclictest	966102	-21	kworker/u4:0+events_unbound	11:20:54	1
826014	99	89	81,5	cyclictest	859475	-21	kworker/u4:8+events_unbound	09:45:40	0
826014	99	81	74,5	cyclictest	948476	-21	kworker/u4:14+events_unbound	11:10:52	0
826015	99	80	72,6	cyclictest	847691	-21	kworker/u4:13+events_unbound	08:45:24	1
826014	99	74	66,6	cyclictest	908073	-21	kworker/u4:1+events_unbound	10:35:47	0
826015	99	73	60,5	cyclictest	856727	-21	kworker/u4:1+events_unbound	09:20:33	1
826014	99	73	58,6	cyclictest	1019957	-21	kworker/u4:2+events_unbound	12:16:05	0
826015	99	72	57,5	cyclictest	911965	-21	kworker/u4:9+events_unbound	10:20:44	1
826015	99	72	54,6	cyclictest	939360	-21	kworker/u4:5+events_unbound	10:45:51	1
826014	99	69	61,6	cyclictest	1002551	-21	kworker/u4:16+events_unbound	11:56:02	0
826015	99	68	61,5	cyclictest	848961	-21	kworker/u4:1+events_unbound	08:40:23	1
826014	99	68	61,5	cyclictest	979823	-21	kworker/u4:5+events_unbound	11:35:58	0
826015	99	67	60,5	cyclictest	833637	-21	kworker/u4:8+events_unbound	08:30:18	1
826014	99	67	60,5	cyclictest	1024492	-21	kworker/u4:1+events_unbound	12:26:05	0
826015	99	66	49,5	cyclictest	1006394	-21	kworker/u4:18+events_unbound	12:01:01	1
826014	99	66	58,6	cyclictest	903504	-21	kworker/u4:2+events_unbound	10:05:42	0
826015	99	65	47,5	cyclictest	868310	-21	kworker/u4:10+events_unbound	09:25:34	1
826014	99	64	57,5	cyclictest	851615	-21	kworker/u4:10+events_unbound	09:05:32	0
826015	99	63	55,6	cyclictest	843853	-21	kworker/u4:5+events_unbound	08:25:18	1
826015	99	62	55,5	cyclictest	894372	-21	kworker/u4:4+events_unbound	10:00:41	1
826015	99	62	55,5	cyclictest	894372	-21	kworker/u4:4+events_unbound	10:00:41	1
826014	99	62	42,18	cyclictest	53	-21	kswapd0	11:20:11	0
826014	99	61	55,4	cyclictest	934755	-21	kworker/u4:4+events_unbound	10:50:02	0
826014	99	59	51,6	cyclictest	848963	-21	kworker/u4:4+events_unbound	09:00:32	0
826014	99	59	51,5	cyclictest	1009462	-21	/usr/sbin/munin	12:00:26	0
826014	99	59	50,7	cyclictest	868310	-21	kworker/u4:10+events_unbound	09:35:38	0
826015	99	58	48,6	cyclictest	979822	-21	kworker/u4:4+events_unbound	11:35:01	1
826015	99	58	40,7	cyclictest	984361	-21	kworker/u4:9+events_unbound	11:50:37	1
826015	99	58	36,5	cyclictest	885244	-21	kworker/u4:12+events_unbound	09:45:06	1
826014	99	58	49,7	cyclictest	1019956	-21	kworker/u4:0+events_unbound	12:20:07	0
826014	99	57	37,17	cyclictest	849008	-21	cut	08:40:01	0
826015	99	56	47,7	cyclictest	829826	-21	kworker/u4:11+events_unbound	07:55:13	1
826015	99	55	46,6	cyclictest	0	-21	swapper/1	12:30:14	1
826014	99	55	48,5	cyclictest	912631	-21	kworker/u4:13+events_unbound	10:15:00	0
826015	99	54	42,9	cyclictest	1017983	-21	diskmemload	12:10:17	1
826014	99	54	47,5	cyclictest	859472	-21	kworker/u4:4+events_unbound	09:29:44	0
826014	99	54	47,5	cyclictest	1000367	-21	gltestperf	11:50:21	0
826014	99	54	45,7	cyclictest	815867	-21	kworker/u4:1+events_unbound	07:15:04	0
826015	99	53	45,6	cyclictest	930206	-21	kworker/u4:6+events_unbound	11:05:53	1
826015	99	53	45,6	cyclictest	875241	-21	ssh	09:30:37	1
826015	99	53	44,7	cyclictest	317	-21	systemd-journal	10:40:47	1
826014	99	53	46,5	cyclictest	857897	-21	ntp_offset	09:10:32	0
826014	99	53	43,8	cyclictest	862092	-21	gltestperf	09:15:20	0
826015	99	52	45,5	cyclictest	856760	-21	diskmemload	11:40:57	1
826015	99	52	43,7	cyclictest	1022567	-21	gltestperf	12:15:19	1
826015	99	52	42,8	cyclictest	856287	-21	systemd	09:05:31	1
826015	99	52	42,7	cyclictest	844885	-21	switchtime	08:20:35	1
826014	99	52	45,5	cyclictest	1040853	-21	/usr/sbin/munin	12:35:30	0
826015	99	51	44,5	cyclictest	955456	-21	tune2fs	11:00:19	1
826015	99	51	44,5	cyclictest	946644	-21	uname	10:50:23	1
826015	99	51	44,5	cyclictest	840067	-21	munin-run	08:05:01	1
826015	99	51	42,7	cyclictest	950840	-21	/usr/sbin/munin	10:55:18	1
826014	99	51	45,4	cyclictest	953042	-21	kworker/u4:1+events_unbound	11:30:02	0
826014	99	51	42,6	cyclictest	919527	-21	fschecks_time	10:20:20	0
826015	99	50	41,7	cyclictest	906971	-21	sd-accept	10:05:41	1
826015	99	50	40,7	cyclictest	929450	-21	unixbench_singl	10:30:46	1
826014	99	50	42,5	cyclictest	846911	-21	fschecks_time	08:30:17	0
826014	99	50	41,7	cyclictest	838741	-21	kworker/u4:14+events_unbound	08:00:14	0
826014	99	50	40,7	cyclictest	897325	-21	/usr/sbin/munin	09:55:27	0
826015	99	49	44,4	cyclictest	826012	-21	cyclictest	12:05:34	1
826015	99	49	40,6	cyclictest	986413	-21	sshd	11:35:08	1
826015	99	49	39,8	cyclictest	843667	-21	timerwakeupswit	08:15:38	1
826015	99	49	38,8	cyclictest	827371	-21	latency_hist	07:15:02	1
826014	99	49	41,6	cyclictest	859475	-21	kworker/u4:8+events_unbound	09:45:01	0
826014	99	49	41,5	cyclictest	851548	-21	unixbench_multi	08:45:44	0
826014	99	49	41,5	cyclictest	843095	-21	fschecks_time	08:15:19	0
826014	99	49	40,6	cyclictest	984362	-21	kworker/u4:10+events_unbound	12:11:03	0
826015	99	48	41,5	cyclictest	896393	-21	http	09:55:01	1
826015	99	48	41,5	cyclictest	1004593	-21	grep	11:55:19	1
826015	99	48	40,5	cyclictest	977842	-21	fschecks_count	11:25:19	1
826015	99	48	39,7	cyclictest	1031248	-21	aten_r7power_vo	12:25:18	1
826015	99	48	36,9	cyclictest	896790	-21	aten_r7power_cu	09:55:20	1
826014	99	48	41,5	cyclictest	948474	-21	kworker/u4:9+events_unbound	10:55:01	0
826014	99	48	41,5	cyclictest	841030	-21	grep	08:05:35	0
826014	99	48	40,6	cyclictest	948476	-21	kworker/u4:14+events_unbound	10:55:51	0
826014	99	48	40,6	cyclictest	833530	-21	unixbench_multi	07:35:36	0
826014	99	48	39,6	cyclictest	927788	-21	idleruntime-cro	10:30:01	0
826015	99	47	38,7	cyclictest	969573	-21	/usr/sbin/munin	11:15:38	1
826015	99	47	23,7	cyclictest	859475	-21	kworker/u4:8+events_unbound	09:40:41	1
826014	99	47	40,5	cyclictest	929457	-21	unixbench_singl	10:30:46	0
826014	99	47	28,12	cyclictest	948476	-21	kworker/u4:14+events_unbound	11:10:02	0
826015	99	46	40,4	cyclictest	841316	-21	modprobe	08:10:00	1
826015	99	46	39,5	cyclictest	968260	-21	munin-plugin-st	11:15:01	1
826015	99	46	39,5	cyclictest	832394	-21	sh	07:35:00	1
826015	99	46	37,7	cyclictest	996541	-21	switchtime	11:45:41	1
826015	99	46	37,7	cyclictest	836027	-21	timerwakeupswit	07:45:37	1
826014	99	46	37,7	cyclictest	874455	-21	df_abs	09:30:17	0
826014	99	46	35,8	cyclictest	1013361	-21	aten_r7power_po	12:05:17	0
826014	99	46	3,36	cyclictest	915459	-21	ssh	10:15:31	0
826014	99	46	26,5	cyclictest	903504	-21	kworker/u4:2+events_unbound	10:02:45	0
826014	99	46	26,5	cyclictest	903504	-21	kworker/u4:2+events_unbound	10:02:45	0
826014	99	46	26,17	cyclictest	0	-21	swapper/0	11:00:21	0
826015	99	45	37,6	cyclictest	1073	-21	snmpd	07:40:35	1
826015	99	45	34,9	cyclictest	829736	-21	unixbench_multi	07:20:37	1
826014	99	45	36,7	cyclictest	836202	-21	kworker/u4:0+events_unbound	07:55:01	0
826014	99	45	36,7	cyclictest	836202	-21	kworker/u4:0+events_unbound	07:55:00	0
826014	99	45	36,6	cyclictest	828527	-21	kworker/u4:5+events_unbound	07:20:06	0
826014	99	45	31,6	cyclictest	828528	-21	kworker/u4:6+events_unbound	07:25:07	0
826015	99	44	39,4	cyclictest	1040758	-21	ld	12:35:26	1
826015	99	44	38,4	cyclictest	841762	-21	fschecks_count	08:10:16	1
826015	99	44	37,5	cyclictest	878772	-21	aten_r7power_cu	09:35:15	1
826015	99	44	36,6	cyclictest	826012	-21	cyclictest	07:50:20	1
826015	99	44	36,6	cyclictest	826012	-21	cyclictest	07:50:20	1
826015	99	44	36,6	cyclictest	0	-21	swapper/1	10:15:29	1
826015	99	44	36,5	cyclictest	852006	-21	sed	08:50:15	1
826015	99	44	36,5	cyclictest	848076	-21	sed	08:35:16	1
826015	99	44	34,7	cyclictest	0	-21	swapper/1	10:25:17	1
826014	99	44	37,5	cyclictest	842607	-21	grep	08:15:00	0
826014	99	44	36,6	cyclictest	938102	-21	mailstats	10:40:35	0
826014	99	44	36,6	cyclictest	844132	-21	aten_r7power_cu	08:20:15	0
826014	99	44	36,6	cyclictest	1024495	-21	kworker/u4:7+events_unbound	12:31:06	0
826014	99	44	36,5	cyclictest	854160	-21	kworker/u4:1+events_unbound	09:00:01	0
826014	99	44	36,5	cyclictest	854160	-21	kworker/u4:1+events_unbound	09:00:01	0
826014	99	44	34,8	cyclictest	845610	-21	fschecks_count	08:25:18	0
826014	99	44	33,8	cyclictest	834901	-21	unixbench_singl	07:40:37	0
826014	99	44	33,8	cyclictest	0	-21	swapper/0	09:50:29	0
826015	99	43	38,3	cyclictest	830003	-21	systemd	07:25:06	1
826015	99	43	36,5	cyclictest	933404	-21	ntp_offset	10:35:32	1
826015	99	42	36,4	cyclictest	828569	-21	munin-run	07:20:00	1
826015	99	42	33,7	cyclictest	854236	-21	latency_hist	09:00:01	1
826015	99	42	33,7	cyclictest	854236	-21	latency_hist	09:00:01	1
826014	99	42	34,6	cyclictest	826231	-21	aten_r7power_en	07:10:15	0
826014	99	42	34,5	cyclictest	852213	-21	gltestperf	08:50:19	0
826014	99	42	33,6	cyclictest	866688	-21	/usr/sbin/munin	09:21:26	0
826015	99	41	31,8	cyclictest	833610	-21	unixbench_singl	07:35:38	1
826014	99	41	34,5	cyclictest	996563	-21	sh	11:45:41	0
826014	99	41	33,6	cyclictest	831348	-21	wget	07:30:15	0
826014	99	40	31,6	cyclictest	0	-21	swapper/0	08:45:00	0
826015	99	39	29,7	cyclictest	854748	-21	gltestperf	09:00:19	1
826014	99	39	32,5	cyclictest	836202	-21	kworker/u4:0-rpciod	07:55:37	0
826014	99	39	31,6	cyclictest	836233	-21	munin-plugin-st	07:50:01	0
826015	99	37	8,20	cyclictest	826013	-21	modprobe	07:10:00	1
826014	99	35	26,6	cyclictest	0	-21	swapper/0	07:10:01	0
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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