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 Sun Aug 30, 2026 00:44:09)
Delayed (victim)					Switcher (culprit)			Timestamp	CPU
PID	Prio	Total latency (µs)	T^(,W^*) latency (µs)	Cmd	PID	Prio	Cmd	Timestamp	CPU
75204	99	105	97,6	cyclictest	198625	-21	kworker/u4:13+events_unbound	22:57:49	1
75202	99	101	93,6	cyclictest	122637	-21	kworker/u4:0+events_unbound	21:27:40	0
75204	99	100	92,6	cyclictest	82814	-21	kworker/u4:19+events_unbound	19:57:26	1
75204	99	98	87,8	cyclictest	144775	-21	kworker/u4:10+events_unbound	22:12:44	1
75204	99	97	89,6	cyclictest	189546	-21	kworker/u4:11+events_unbound	22:42:48	1
75204	99	92	86,4	cyclictest	243225	-21	kworker/u4:12+events_unbound	23:58:00	1
75204	99	91	78,5	cyclictest	194085	-21	kworker/u4:4+events_unbound	22:47:49	1
75204	99	90	82,6	cyclictest	98320	-21	kworker/u4:17+events_unbound	21:12:36	1
75204	99	90	82,6	cyclictest	76421	-21	kworker/u4:1+events_unbound	20:42:31	1
75204	99	88	80,6	cyclictest	93213	-21	kworker/u4:12+events_unbound	20:32:30	1
75204	99	86	79,5	cyclictest	140239	-21	kworker/u4:9+events_unbound	21:47:41	1
75204	99	86	78,6	cyclictest	72697	-21	kworker/u4:13+events_unbound	19:27:23	1
75204	99	85	78,5	cyclictest	91933	-21	kworker/u4:10+events_unbound	20:12:26	1
75204	99	82	66,7	cyclictest	76421	-21	kworker/u4:1+events_unbound	19:22:21	1
75204	99	81	76,3	cyclictest	98325	-21	kworker/u4:23+events_unbound	20:52:34	1
75204	99	81	74,5	cyclictest	91933	-21	kworker/u4:10+events_unbound	20:27:28	1
75204	99	81	74,5	cyclictest	274059	-21	kworker/u4:7+events_unbound	00:33:08	1
75204	99	81	70,5	cyclictest	88003	-21	kworker/u4:3+events_unbound	20:07:25	1
75204	99	81	69,5	cyclictest	106079	-21	kworker/u4:8+events_unbound	21:22:39	1
75204	99	80	73,5	cyclictest	220602	-21	kworker/u4:8+events_unbound	23:17:52	1
75204	99	80	65,6	cyclictest	180437	-21	kworker/u4:8+events_unbound	22:32:48	1
75204	99	78	71,5	cyclictest	88003	-21	kworker/u4:3+events_unbound	20:37:31	1
75204	99	77	70,5	cyclictest	265036	-21	kworker/u4:2+events_unbound	00:18:04	1
75204	99	77	70,5	cyclictest	216077	-21	kworker/u4:3+events_unbound	23:12:51	1
75204	99	74	66,6	cyclictest	97049	-21	kworker/u4:15+events_unbound	20:57:33	1
75202	99	74	69,3	cyclictest	175927	-21	kworker/u4:2+events_unbound	22:27:46	0
75204	99	70	3,55	cyclictest	165673	-21	ssh	22:15:31	1
75202	99	66	54,10	cyclictest	251535	-21	kworker/u4:14+events_unbound	23:55:00	0
75204	99	65	58,5	cyclictest	77708	-21	kworker/u4:14+events_unbound	19:32:20	1
75204	99	64	57,5	cyclictest	180437	-21	kworker/u4:8+events_unbound	23:02:51	1
75204	99	64	45,8	cyclictest	242564	-21	kworker/u4:3+events_unbound	00:00:42	1
75204	99	62	55,5	cyclictest	72697	-21	kworker/u4:13+events_unbound	19:37:24	1
75202	99	62	49,10	cyclictest	152585	-21	switchtime	22:00:38	0
75202	99	61	53,6	cyclictest	157752	-21	kworker/u4:2+events_unbound	22:17:47	0
75202	99	60	51,7	cyclictest	111662	-21	/usr/sbin/munin	21:15:26	0
75202	99	60	25,24	cyclictest	191375	-21	cron	22:45:00	0
75204	99	58	51,5	cyclictest	98320	-21	kworker/u4:17+events_unbound	21:17:02	1
75204	99	58	51,5	cyclictest	76425	-21	kworker/u4:4+events_unbound	19:47:22	1
75202	99	58	51,5	cyclictest	170681	-21	/usr/sbin/munin	22:20:40	0
75202	99	58	46,7	cyclictest	225137	-21	kworker/u4:11-rpciod	23:22:20	0
75204	99	57	49,6	cyclictest	91929	-21	kworker/u4:4+events_unbound	21:37:40	1
75204	99	57	47,8	cyclictest	234519	-21	systemd	23:32:54	1
75204	99	56	43,10	cyclictest	100640	-21	switchtime	20:45:38	1
75202	99	55	47,6	cyclictest	216078	-21	kworker/u4:4+events_unbound	23:32:55	0
75202	99	55	46,7	cyclictest	219381	-21	/usr/sbin/munin	23:15:41	0
75202	99	55	46,6	cyclictest	260519	-21	kworker/u4:5+events_unbound	00:08:02	0
75202	99	55	34,18	cyclictest	183878	-21	timerandwakeup	22:35:39	0
75204	99	54	47,5	cyclictest	227796	-21	gltestperf	23:25:21	1
75204	99	54	43,7	cyclictest	280599	-21	dpkg	00:25:12	1
75202	99	54	47,4	cyclictest	241412	-21	gcc	23:40:29	0
75202	99	54	37,13	cyclictest	256	50	irq/23-42890000.ethernet	22:50:12	0
75204	99	53	45,6	cyclictest	220598	-21	kworker/u4:2+rpciod	23:40:18	1
75204	99	53	43,7	cyclictest	134909	-21	ssh	21:40:48	1
75204	99	53	33,6	cyclictest	91929	-21	kworker/u4:4+events_unbound	21:34:06	1
75202	99	53	46,5	cyclictest	91932	-21	kworker/u4:9+events_unbound	20:17:02	0
75202	99	53	45,6	cyclictest	227666	-21	fschecks_count	23:25:20	0
75204	99	52	45,5	cyclictest	82813	-21	kworker/u4:18+events_unbound	20:05:01	1
75202	99	52	42,7	cyclictest	79394	-21	df	19:25:15	0
75202	99	52	39,8	cyclictest	0	-21	swapper/0	21:40:42	0
75202	99	52	38,8	cyclictest	276832	-21	ssh	00:20:25	0
75204	99	51	44,4	cyclictest	0	-21	swapper/1	00:35:11	1
75202	99	51	43,6	cyclictest	289852	-21	/usr/sbin/munin	00:35:27	0
75202	99	51	42,6	cyclictest	129525	-21	gltestperf	21:35:23	0
75202	99	51	41,7	cyclictest	98327	-21	systemd	20:37:29	0
75202	99	51	4,14	cyclictest	192453	-21	ssh	22:45:31	0
75202	99	51	39,8	cyclictest	206888	-21	ssh	23:01:25	0
75202	99	51	39,7	cyclictest	180438	-21	kworker/u4:9-rpciod	22:34:57	0
75204	99	50	43,5	cyclictest	247708	-21	kworker/u4:1+events_unbound	23:50:03	1
75204	99	50	43,5	cyclictest	149333	-21	kworker/u4:12-rpciod	22:00:39	1
75204	99	50	3,35	cyclictest	196166	-21	ssh	22:50:14	1
75202	99	50	43,5	cyclictest	99660	-21	idleruntime-cro	20:45:00	0
75202	99	50	42,6	cyclictest	142757	-21	/usr/sbin/munin	21:50:17	0
75202	99	50	42,6	cyclictest	142757	-21	/usr/sbin/munin	21:50:16	0
75202	99	50	41,6	cyclictest	255066	-21	sh	23:55:41	0
75202	99	50	41,6	cyclictest	116057	-21	sh	21:20:20	0
75202	99	50	3,34	cyclictest	210392	-21	ssh	23:05:35	0
75202	99	50	24,23	cyclictest	102465	-21	basename	20:55:14	0
75204	99	49	41,6	cyclictest	143756	-21	unixbench-2d	21:50:40	1
75204	99	49	41,6	cyclictest	143756	-21	unixbench-2d	21:50:40	1
75204	99	49	33,6	cyclictest	233510	-21	kworker/u4:5+events_unbound	23:47:16	1
75202	99	49	4,36	cyclictest	91966	-21	idleruntime-cro	20:15:00	0
75202	99	49	38,8	cyclictest	218170	-21	latency_hist	23:15:02	0
75202	99	49	31,10	cyclictest	256	50	irq/23-42890000.ethernet	00:00:33	0
75202	99	49	22,14	cyclictest	15	1	ktimers/0	21:45:14	0
75202	99	49	16,6	cyclictest	15	1	ktimers/0	23:35:28	0
75204	99	48	40,5	cyclictest	156283	-21	fschecks_count	22:05:21	1
75204	99	48	38,4	cyclictest	76425	-21	kworker/u4:4+events_unbound	19:50:03	1
75202	99	48	14,8	cyclictest	14	-21	ksoftirqd/0	00:30:33	0
75204	99	47	38,6	cyclictest	0	-21	swapper/1	22:20:29	1
75204	99	47	35,9	cyclictest	0	-21	swapper/1	19:40:36	1
75204	99	47	18,17	cyclictest	0	-21	swapper/1	23:20:26	1
75202	99	47	40,5	cyclictest	271823	-21	aten_r7power_en	00:15:16	0
75202	99	47	38,6	cyclictest	89793	-21	fschecks_time	20:05:19	0
75202	99	47	36,8	cyclictest	93469	-21	aten2__	20:20:15	0
75202	99	47	36,8	cyclictest	93469	-21	aten2__	20:20:14	0
75202	99	47	25,20	cyclictest	100113	-21	fschecks_time	20:45:20	0
75202	99	47	19,5	cyclictest	148282	-21	unixbench_singl	21:55:40	0
75202	99	47	19,5	cyclictest	148282	-21	unixbench_singl	21:55:40	0
75202	99	47	0,10	cyclictest	247206	-21	ssh	23:46:52	0
75204	99	46	40,4	cyclictest	220598	-21	kworker/u4:2+events_unbound	23:35:02	1
75204	99	46	40,4	cyclictest	106193	-21	latency_hist	21:10:02	1
75204	99	46	36,4	cyclictest	149333	-21	kworker/u4:12+events_unbound	21:59:46	1
75204	99	46	36,4	cyclictest	149333	-21	kworker/u4:12+events_unbound	21:59:45	1
75204	99	46	35,8	cyclictest	271523	-21	latency_hist	00:15:02	1
75204	99	46	34,5	cyclictest	180437	-21	kworker/u4:8+events_unbound	23:05:03	1
75202	99	46	5,13	cyclictest	81745	-21	apt-get	19:35:11	0
75202	99	46	38,5	cyclictest	267920	-21	gcc	00:10:23	0
75202	99	46	29,15	cyclictest	281454	-21	ntpq	00:25:34	0
75202	99	46	20,3	cyclictest	15	1	ktimers/0	21:30:21	0
75204	99	45	38,5	cyclictest	174780	-21	proc_pri	22:25:38	1
75204	99	45	35,8	cyclictest	263223	-21	fschecks_time	00:05:20	1
75204	99	45	35,8	cyclictest	121176	-21	xargs	21:25:38	1
75204	99	45	19,7	cyclictest	17	1	rcu_preempt	19:15:36	1
75202	99	45	9,15	cyclictest	15	1	ktimers/0	20:50:18	0
75202	99	45	38,5	cyclictest	198625	-21	kworker/u4:13+events_unbound	23:00:01	0
75202	99	45	38,5	cyclictest	156153	-21	aten_r7power_vo	22:05:19	0
75202	99	45	37,5	cyclictest	4041752	-21	kworker/u4:5-rpciod	19:10:18	0
75202	99	45	36,6	cyclictest	88972	-21	sendmail_mailqu	20:01:04	0
75202	99	45	33,8	cyclictest	0	-21	swapper/0	19:35:01	0
75202	99	45	23,20	cyclictest	88048	-21	idleruntime-cro	19:59:59	0
75204	99	44	38,4	cyclictest	183982	-21	awk	22:35:40	1
75204	99	44	37,5	cyclictest	4041752	-21	kworker/u4:5+events_unbound	19:10:02	1
75202	99	44	37,5	cyclictest	106850	-21	fschecks_time	21:10:21	0
75202	99	44	36,6	cyclictest	104847	-21	grep	21:05:01	0
75204	99	43	35,5	cyclictest	274714	-21	kworker/u4:9-rpciod	00:20:25	1
75202	99	43	8,11	cyclictest	0	-21	swapper/0	22:10:26	0
75202	99	43	6,9	cyclictest	84922	-21	ntpq	19:45:30	0
75202	99	43	37,4	cyclictest	85653	-21	sort	19:50:13	0
75202	99	43	28,12	cyclictest	96877	-21	sort	20:30:37	0
75204	99	42	35,5	cyclictest	93733	-21	fschecks_time	20:20:18	1
75204	99	42	35,5	cyclictest	93733	-21	fschecks_time	20:20:18	1
75204	99	42	33,7	cyclictest	92420	-21	fschecks_count	20:15:18	1
75202	99	42	36,4	cyclictest	95002	-21	fschecks_time	20:25:19	0
75202	99	42	35,5	cyclictest	77708	-21	kworker/u4:14+events_unbound	19:19:46	0
75202	99	42	27,11	cyclictest	75314	-21	ls	19:10:02	0
75202	99	42	18,21	cyclictest	0	-21	swapper/0	21:05:39	0
75202	99	42	14,4	cyclictest	15	1	ktimers/0	19:20:17	0
75204	99	41	32,7	cyclictest	104100	-21	gltestperf	21:00:20	1
75202	99	40	4,9	cyclictest	83603	-21	ntpq	19:40:25	0
75204	99	37	4,15	cyclictest	27	1	ktimers/1	19:10:02	1
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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