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 792 highest latencies:

System rack7slot2.osadl.org (updated Sat Jul 12, 2025 00:44:06)
Delayed (victim)					Switcher (culprit)			Timestamp	CPU
PID	Prio	Total latency (µs)	T^(,W^*) latency (µs)	Cmd	PID	Prio	Cmd	Timestamp	CPU
27011	99	102	94,6	cyclictest	26931	-21	kworker/u4:2+events_unbound	19:12:01	0
27011	99	102	94,6	cyclictest	188684	-21	kworker/u4:7+events_unbound	23:52:33	0
27011	99	100	92,6	cyclictest	28230	-21	kworker/u4:5+events_unbound	19:52:10	0
27011	99	94	86,6	cyclictest	30811	-21	kworker/u4:12+events_unbound	20:47:18	0
27011	99	91	83,6	cyclictest	28232	-21	kworker/u4:8+events_unbound	20:52:21	0
27011	99	90	83,5	cyclictest	28230	-21	kworker/u4:5+events_unbound	21:17:24	0
27011	99	90	83,5	cyclictest	28229	-21	kworker/u4:4+events_unbound	19:22:01	0
27011	99	90	82,6	cyclictest	30810	-21	kworker/u4:11+events_unbound	20:22:16	0
27011	99	90	82,6	cyclictest	196709	-21	kworker/u4:7+events_unbound	00:13:38	0
27011	99	87	81,5	cyclictest	41107	-21	kworker/u4:10+events_unbound	20:17:13	0
27011	99	87	79,6	cyclictest	112798	-21	kworker/u4:8+events_unbound	22:17:34	0
27011	99	84	77,5	cyclictest	53864	-21	kworker/u4:14+events_unbound	21:12:23	0
27011	99	84	77,5	cyclictest	3869697	-21	kworker/u4:0+events_unbound	20:07:13	0
27011	99	84	76,6	cyclictest	96380	-21	kworker/u4:5+events_unbound	21:57:32	0
27011	99	82	75,5	cyclictest	30808	-21	kworker/u4:7+events_unbound	20:12:14	0
27011	99	81	73,6	cyclictest	32082	-21	kworker/u4:15+events_unbound	19:30:01	0
27011	99	79	70,7	cyclictest	44916	-21	kworker/u4:3+events_unbound	20:42:17	0
27013	99	78	71,5	cyclictest	54	-21	kswapd0	22:00:14	1
27013	99	78	71,5	cyclictest	54	-21	kswapd0	22:00:14	1
27011	99	77	70,5	cyclictest	196708	-21	kworker/u4:6+events_unbound	00:03:19	0
27011	99	76	70,5	cyclictest	39822	-21	kworker/u4:2+events_unbound	20:32:16	0
27011	99	76	69,5	cyclictest	32082	-21	kworker/u4:15+events_unbound	19:42:07	0
27011	99	75	65,7	cyclictest	54	-21	kswapd0	00:20:00	0
27011	99	74	67,5	cyclictest	28232	-21	kworker/u4:8+events_unbound	19:15:01	0
27013	99	73	64,5	cyclictest	41107	-21	kworker/u4:10+events_unbound	20:20:02	1
27011	99	73	65,6	cyclictest	30811	-21	kworker/u4:12+events_unbound	21:00:00	0
27013	99	72	5,59	cyclictest	213224	-21	ssh	00:25:31	1
27011	99	71	65,5	cyclictest	29502	-21	kworker/u4:9+events_unbound	20:35:02	0
27013	99	70	37,31	cyclictest	86744	-21	df_abs	21:45:19	1
27013	99	69	61,5	cyclictest	210732	-21	kworker/u4:13+events_unbound	00:25:00	1
27013	99	68	37,29	cyclictest	54	-21	kswapd0	00:00:01	1
27013	99	68	2,42	cyclictest	40039	-21	apt-get	20:00:15	1
27013	99	67	38,27	cyclictest	0	-21	swapper/1	23:25:27	1
27013	99	67	31,30	cyclictest	0	-21	swapper/1	23:35:37	1
27013	99	67	1,38	cyclictest	128858	-21	ssh	22:37:08	1
27011	99	67	61,5	cyclictest	28232	-21	kworker/u4:8+events_unbound	19:25:02	0
27011	99	67	61,4	cyclictest	54	-21	kswapd0	23:30:34	0
27011	99	67	59,6	cyclictest	54	-21	kswapd0	22:05:34	0
27013	99	66	6,53	cyclictest	143544	-21	ssh	22:55:34	1
27013	99	66	57,6	cyclictest	62769	-21	ssh	21:15:28	1
27013	99	66	31,31	cyclictest	126438	-21	modprobe	22:35:00	1
27013	99	66	13,30	cyclictest	0	-21	swapper/1	21:25:36	1
27013	99	65	2,41	cyclictest	77790	-21	ssh	21:34:28	1
27013	99	64	33,28	cyclictest	0	-21	swapper/1	22:20:17	1
27013	99	64	30,31	cyclictest	0	-21	swapper/1	23:45:24	1
27013	99	64	2,55	cyclictest	103144	-21	ssh	22:05:24	1
27011	99	64	58,4	cyclictest	55137	-21	kworker/u4:21+events_unbound	21:02:22	0
27013	99	63	53,5	cyclictest	0	-21	swapper/1	22:15:38	1
27013	99	63	29,28	cyclictest	0	-21	swapper/1	21:35:32	1
27013	99	63	2,56	cyclictest	83843	-21	ssh	21:40:47	1
27013	99	63	2,53	cyclictest	52796	-21	apt-get	20:50:12	1
27013	99	62	7,31	cyclictest	218212	-21	ssh	00:34:46	1
27013	99	62	4,54	cyclictest	202526	-21	ntpq	00:10:25	1
27013	99	62	4,53	cyclictest	58771	-21	ld	21:10:30	1
27013	99	62	36,23	cyclictest	47929	-21	grep	20:30:18	1
27013	99	62	32,27	cyclictest	0	-21	swapper/1	21:00:01	1
27013	99	62	31,27	cyclictest	44916	-21	kworker/u4:3-xprtiod	20:45:01	1
27013	99	62	29,27	cyclictest	0	-21	swapper/1	19:15:02	1
27013	99	62	2,54	cyclictest	162743	-21	apt-get	23:20:12	1
27013	99	62	2,35	cyclictest	181871	-21	ssh	23:44:10	1
27013	99	62	13,26	cyclictest	152562	-21	ssh	23:06:48	1
27011	99	62	50,10	cyclictest	70540	-21	cpu	21:25:19	0
27013	99	61	9,44	cyclictest	139608	-21	ssh	22:50:35	1
27013	99	61	3,52	cyclictest	91340	-21	ntpq	21:50:39	1
27013	99	61	2,54	cyclictest	221147	-21	sendmail-msp	00:40:01	1
27013	99	61	2,53	cyclictest	46967	-21	ntpq	20:25:24	1
27013	99	61	1,55	cyclictest	154723	-21	apt-get	23:10:19	1
27011	99	61	48,11	cyclictest	215881	-21	fschecks_count	00:30:20	0
27013	99	60	52,5	cyclictest	0	-21	swapper/1	23:15:07	1
27013	99	60	12,27	cyclictest	197445	-21	ssh	00:03:50	1
27013	99	60	1,12	cyclictest	174389	-21	ssh	23:34:59	1
27013	99	60	1,11	cyclictest	147561	-21	ntpq	23:00:36	1
27013	99	59	4,52	cyclictest	106597	-21	apt-get	22:10:14	1
27013	99	59	4,49	cyclictest	55976	-21	ntpq	21:00:32	1
27013	99	59	39,14	cyclictest	57747	-21	diskmemload	22:40:30	1
27013	99	59	3,51	cyclictest	199006	-21	ssh	00:05:27	1
27013	99	59	26,30	cyclictest	136017	-21	sh	22:45:41	1
27013	99	59	2,53	cyclictest	119559	-21	ssh	22:25:31	1
27011	99	59	52,5	cyclictest	32083	-21	kworker/u4:16+events_unbound	19:59:01	0
27011	99	59	37,15	cyclictest	54	-21	kswapd0	23:10:09	0
27013	99	58	35,21	cyclictest	29176	-21	sendmail_mailqu	19:15:37	1
27013	99	58	26,28	cyclictest	0	-21	swapper/1	21:55:37	1
27013	99	58	2,34	cyclictest	206625	-21	ssh	00:15:47	1
27013	99	58	19,33	cyclictest	57880	-21	cat	21:10:02	1
27011	99	58	19,36	cyclictest	26989	-21	munin-run	19:10:00	0
27013	99	57	21,33	cyclictest	186656	-21	aten_r7power_cu	23:50:17	1
27013	99	57	12,41	cyclictest	55137	-21	kworker/u4:21-rpciod	21:20:33	1
27011	99	57	50,5	cyclictest	192645	-21	kworker/u4:13+events_unbound	23:57:44	0
27013	99	56	2,50	cyclictest	46221	-21	sshd	20:22:13	1
27013	99	56	2,49	cyclictest	36750	-21	ntpq	19:45:28	1
27013	99	56	2,49	cyclictest	36750	-21	ntpq	19:45:27	1
27013	99	56	2,49	cyclictest	30367	-21	ntpq	19:20:27	1
27013	99	56	24,29	cyclictest	0	-21	swapper/1	20:05:31	1
27013	99	56	19,34	cyclictest	33672	-21	cut	19:35:20	1
27013	99	56	1,51	cyclictest	31641	-21	ntpq	19:25:31	1
27013	99	56	1,2	cyclictest	0	-21	swapper/1	19:55:15	1
27011	99	56	50,4	cyclictest	32082	-21	kworker/u4:15+events_unbound	19:45:03	0
27011	99	56	50,4	cyclictest	32082	-21	kworker/u4:15+events_unbound	19:45:02	0
27011	99	56	49,5	cyclictest	30808	-21	kworker/u4:7+events_unbound	20:00:03	0
27013	99	55	40,6	cyclictest	0	-21	swapper/1	20:45:25	1
27013	99	55	3,46	cyclictest	38119	-21	ntpq	19:50:33	1
27013	99	55	2,50	cyclictest	43231	-21	ntpq	20:10:34	1
27011	99	55	47,6	cyclictest	196706	-21	kworker/u4:4+events_unbound	00:06:59	0
27011	99	55	47,5	cyclictest	107365	-21	ld	22:10:31	0
27011	99	54	47,5	cyclictest	156903	-21	kworker/u4:8+events_unbound	23:25:59	0
27011	99	54	46,6	cyclictest	84717	-21	kworker/u4:8+events_unbound	21:50:04	0
27011	99	54	41,10	cyclictest	150964	-21	forks	23:05:20	0
27011	99	53	46,5	cyclictest	76454	-21	kworker/u4:4+events_unbound	21:32:59	0
27011	99	53	46,5	cyclictest	29502	-21	kworker/u4:9+events_unbound	20:25:03	0
27011	99	53	33,17	cyclictest	0	-21	swapper/0	22:45:01	0
27011	99	52	45,5	cyclictest	220225	-21	kworker/u4:2+events_unbound	00:39:00	0
27011	99	52	45,5	cyclictest	156900	-21	kworker/u4:4+events_unbound	23:15:59	0
27011	99	52	45,5	cyclictest	116936	-21	kworker/u4:1+events_unbound	22:45:59	0
27011	99	52	44,6	cyclictest	76452	-21	kworker/u4:1+events_unbound	22:04:00	0
27011	99	52	44,6	cyclictest	76452	-21	kworker/u4:1+events_unbound	22:04:00	0
27011	99	52	43,7	cyclictest	521	-21	in:imuxsock	00:28:36	0
27011	99	52	35,15	cyclictest	130564	-21	latency_hist	22:40:02	0
27013	99	51	3,45	cyclictest	49617	-21	sshd	20:35:36	1
27013	99	51	2,45	cyclictest	32923	-21	ntpq	19:30:31	1
27011	99	51	45,5	cyclictest	199957	-21	kworker/u4:10+events_unbound	00:20:59	0
27011	99	51	45,4	cyclictest	255	50	irq/23-42890000.ethernet	23:35:17	0
27011	99	51	44,5	cyclictest	30813	-21	kworker/u4:14+events_unbound	19:36:01	0
27013	99	50	2,44	cyclictest	34916	-21	/usr/sbin/munin	19:40:44	1
27011	99	50	43,5	cyclictest	163047	-21	/usr/sbin/munin	23:20:20	0
27011	99	50	42,6	cyclictest	54	-21	kswapd0	21:40:01	0
27011	99	49	41,6	cyclictest	378	-21	dbus-daemon	22:27:35	0
27011	99	48	39,6	cyclictest	183571	-21	mailstats	23:45:37	0
27011	99	48	33,13	cyclictest	123630	-21	/usr/sbin/munin	22:30:36	0
27011	99	47	4,27	cyclictest	179541	-21	ntpq	23:40:36	0
27013	99	46	1,42	cyclictest	27051	-21	latency_hist	19:10:01	1
27011	99	46	39,5	cyclictest	112794	-21	kworker/u4:2+events_unbound	22:21:00	0
27011	99	46	24,16	cyclictest	255	50	irq/23-42890000.ethernet	21:40:07	0
27011	99	45	38,5	cyclictest	147043	-21	sort	23:00:21	0
27011	99	45	37,6	cyclictest	55137	-21	kworker/u4:21+events_unbound	21:07:00	0
27011	99	45	34,8	cyclictest	139672	-21	/usr/sbin/munin	22:50:39	0
27011	99	44	28,12	cyclictest	0	-21	swapper/0	21:24:43	0
27011	99	42	36,4	cyclictest	87671	-21	unixbench-2d	21:45:42	0
27011	99	42	27,6	cyclictest	144762	-21	kworker/u4:15+events_unbound	22:59:15	0
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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