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 376 highest latencies:

System rack7slot2.osadl.org (updated Mon Nov 03, 2025 12:44:08)
Delayed (victim)					Switcher (culprit)			Timestamp	CPU
PID	Prio	Total latency (µs)	T^(,W^*) latency (µs)	Cmd	PID	Prio	Cmd	Timestamp	CPU
3824967	99	128	107,19	cyclictest	3894229	-21	kworker/u4:7+events_unbound	10:40:55	0
3824967	99	128	107,19	cyclictest	3894229	-21	kworker/u4:7+events_unbound	10:40:55	0
3824967	99	124	112,9	cyclictest	3890585	-21	kworker/u4:10+events_unbound	10:05:46	0
3824967	99	123	104,5	cyclictest	3866967	-21	kworker/u4:7+events_unbound	09:45:42	0
3824967	99	117	109,6	cyclictest	3880053	-21	kworker/u4:4+events_unbound	09:51:01	0
3824967	99	115	88,6	cyclictest	3911236	-21	kworker/u4:6+events_unbound	10:35:52	0
3824967	99	113	105,6	cyclictest	3924207	-21	kworker/u4:13+events_unbound	10:56:01	0
3824968	99	107	94,8	cyclictest	3826200	-21	kworker/u4:5+events_unbound	07:45:35	1
3824967	99	106	98,6	cyclictest	3991970	-21	kworker/u4:9+events_unbound	12:36:18	0
3824967	99	102	88,12	cyclictest	3849680	-21	kworker/u4:14+events_unbound	09:20:37	0
3824968	99	97	85,8	cyclictest	3805174	-21	kworker/u4:12+events_unbound	07:30:00	1
3824968	99	94	74,12	cyclictest	0	-21	swapper/1	11:25:36	1
3824967	99	91	83,5	cyclictest	3857950	-21	kworker/u4:11+events_unbound	10:00:46	0
3824968	99	90	40,40	cyclictest	3824964	-21	cyclictest	11:11:51	1
3824968	99	89	76,10	cyclictest	3853530	-21	kworker/u4:4+events_unbound	09:05:35	1
3824968	99	87	77,7	cyclictest	3850962	-21	kworker/u4:16+events_unbound	08:50:29	1
3824968	99	86	73,10	cyclictest	3826201	-21	kworker/u4:8+events_unbound	07:40:08	1
3824967	99	85	77,6	cyclictest	3956974	-21	kworker/u4:12+events_unbound	12:06:14	0
3824967	99	85	76,6	cyclictest	3943984	-21	kworker/u4:8+events_unbound	11:26:14	0
3824968	99	82	74,6	cyclictest	3849680	-21	kworker/u4:14+events_unbound	09:00:35	1
3824968	99	81	71,8	cyclictest	3827480	-21	kworker/u4:13+events_unbound	08:25:42	1
3824967	99	81	73,6	cyclictest	3883603	-21	kworker/u4:5+events_unbound	09:55:42	0
3824967	99	81	72,7	cyclictest	3620321	-21	kworker/u4:1+events_unbound	07:24:56	0
3824968	99	80	29,39	cyclictest	0	-21	swapper/1	11:31:07	1
3824968	99	80	27,39	cyclictest	0	-21	swapper/1	09:45:36	1
3824968	99	79	74,3	cyclictest	3940392	-21	kworker/u4:6+events_unbound	11:21:05	1
3824967	99	77	71,4	cyclictest	3924207	-21	kworker/u4:13+events_unbound	11:11:04	0
3824967	99	77	67,8	cyclictest	3834041	-21	kworker/u4:11+events_unbound	07:50:15	0
3824967	99	77	61,6	cyclictest	3904318	-21	kworker/u4:1+events_unbound	10:30:51	0
3824968	99	75	67,6	cyclictest	3853530	-21	kworker/u4:4+events_unbound	09:15:57	1
3824967	99	75	59,14	cyclictest	3897399	-21	kworker/u4:14+events_unbound	10:15:02	0
3824968	99	74	18,31	cyclictest	0	-21	swapper/1	10:30:17	1
3824967	99	74	65,6	cyclictest	3809452	-21	kworker/u4:7+events_unbound	07:35:07	0
3824968	99	73	43,28	cyclictest	3989551	-21	munin-plugin-st	12:30:00	1
3824967	99	73	66,5	cyclictest	3914522	-21	kworker/u4:10+events_unbound	11:00:59	0
3824968	99	72	61,8	cyclictest	3809452	-21	kworker/u4:7+events_unbound	07:20:31	1
3824968	99	72	2,44	cyclictest	3967630	-21	ssh	11:57:58	1
3824968	99	72	2,42	cyclictest	3952135	-21	apt-get	11:35:14	1
3824967	99	72	65,5	cyclictest	3950821	-21	kworker/u4:5+events_unbound	12:01:11	0
3824968	99	71	31,20	cyclictest	0	-21	swapper/1	12:35:01	1
3824968	99	71	22,37	cyclictest	0	-21	swapper/1	12:03:47	1
3824968	99	70	61,6	cyclictest	3956974	-21	kworker/u4:12+events_unbound	11:51:11	1
3824968	99	70	61,6	cyclictest	3956974	-21	kworker/u4:12+events_unbound	11:51:11	1
3824968	99	69	64,3	cyclictest	3823674	-21	kworker/u4:0+events_unbound	07:10:29	1
3824967	99	69	61,6	cyclictest	3981622	-21	kworker/u4:13+events_unbound	12:30:03	0
3824968	99	68	4,36	cyclictest	3924640	-21	ssh	10:53:31	1
3824968	99	68	1,43	cyclictest	3891403	-21	ssh	10:04:12	1
3824968	99	67	5,56	cyclictest	3900011	-21	ssh	10:15:39	1
3824968	99	67	2,40	cyclictest	3864454	-21	ssh	09:24:05	1
3824968	99	67	22,27	cyclictest	0	-21	swapper/1	11:15:20	1
3824968	99	67	14,27	cyclictest	3898007	-21	ssh	10:12:55	1
3824968	99	67	1,40	cyclictest	3931847	-21	ssh	11:04:57	1
3824968	99	66	52,10	cyclictest	3620321	-21	kworker/u4:1+events_unbound	08:00:17	1
3824968	99	66	2,40	cyclictest	3957667	-21	ssh	11:43:06	1
3824968	99	66	2,37	cyclictest	3918674	-21	ssh	10:44:48	1
3824968	99	66	2,37	cyclictest	3918674	-21	ssh	10:44:47	1
3824968	99	66	2,37	cyclictest	3904351	-21	ssh	10:22:01	1
3824967	99	66	48,7	cyclictest	3947523	-21	kworker/u4:11+events_unbound	11:35:00	0
3824968	99	65	54,9	cyclictest	3824889	-21	kworker/u4:3+events_unbound	07:30:33	1
3824968	99	65	1,36	cyclictest	3856504	-21	apt-get	09:10:17	1
3824967	99	65	57,6	cyclictest	3904326	-21	kworker/u4:12+events_unbound	10:25:50	0
3824968	99	64	40,22	cyclictest	3972661	-21	/usr/sbin/munin	12:05:17	1
3824968	99	64	29,33	cyclictest	3918977	-21	/usr/sbin/munin	10:45:29	1
3824967	99	64	56,6	cyclictest	3964019	-21	kworker/u4:0+events_unbound	12:16:20	0
3824967	99	64	54,7	cyclictest	3839272	-21	kworker/u4:0+events_unbound	08:35:45	0
3824968	99	63	39,22	cyclictest	3977467	-21	unixbench_singl	12:10:45	1
3824968	99	63	39,22	cyclictest	3977467	-21	unixbench_singl	12:10:44	1
3824968	99	63	3,55	cyclictest	3926228	-21	ntpq	10:55:29	1
3824968	99	63	25,33	cyclictest	379	-21	dbus-daemon	08:55:29	1
3824968	99	63	2,36	cyclictest	3986273	-21	ssh	12:24:53	1
3824967	99	62	57,3	cyclictest	3839272	-21	kworker/u4:0+events_unbound	08:05:18	0
3824967	99	62	54,6	cyclictest	3917732	-21	kworker/u4:8+events_unbound	11:06:09	0
3824967	99	62	51,6	cyclictest	0	-21	swapper/0	11:55:41	0
3824968	99	61	52,7	cyclictest	3959421	-21	/usr/sbin/munin	11:45:27	1
3824968	99	61	3,53	cyclictest	3849251	-21	ntpq	08:40:38	1
3824968	99	61	34,25	cyclictest	3892073	-21	aten2__	10:05:17	1
3824968	99	61	1,36	cyclictest	3913687	-21	find	10:35:40	1
3824967	99	61	42,16	cyclictest	3824889	-21	kworker/u4:3+events_unbound	07:40:34	0
3824968	99	60	2,33	cyclictest	3932934	-21	ntpq	11:05:35	1
3824968	99	60	23,34	cyclictest	3836003	-21	gltestperf	07:50:21	1
3824968	99	60	15,25	cyclictest	3856247	-21	diskmemload	09:32:04	1
3824967	99	60	52,5	cyclictest	3900957	-21	kworker/u4:15+events_unbound	10:17:38	0
3824968	99	59	46,10	cyclictest	3839274	-21	kworker/u4:5+events_unbound	08:15:20	1
3824968	99	59	1,53	cyclictest	3885097	-21	apt-get	09:55:11	1
3824968	99	59	1,37	cyclictest	3883951	-21	ssh	09:53:10	1
3824968	99	58	2,52	cyclictest	3871741	-21	ntpq	09:35:30	1
3824968	99	58	2,34	cyclictest	3856247	-21	diskmemload	12:15:43	1
3824968	99	58	1,33	cyclictest	3908489	-21	ssh	10:28:42	1
3824967	99	58	49,7	cyclictest	3809452	-21	kworker/u4:7+events_unbound	07:55:15	0
3824968	99	57	50,5	cyclictest	3866965	-21	kworker/u4:0+events_unbound	09:29:37	1
3824968	99	57	2,50	cyclictest	3993692	-21	apt-get	12:35:17	1
3824968	99	57	2,50	cyclictest	3847786	-21	ntpq	08:35:30	1
3824968	99	57	2,50	cyclictest	3846523	-21	ntpq	08:30:33	1
3824968	99	57	1,52	cyclictest	3840124	-21	ntpq	08:05:33	1
3824967	99	57	49,6	cyclictest	3920885	-21	kworker/u4:2+events_unbound	10:51:06	0
3824968	99	56	32,20	cyclictest	3843546	-21	sed	08:20:17	1
3824968	99	56	27,26	cyclictest	0	-21	swapper/1	07:15:29	1
3824967	99	56	50,4	cyclictest	3805174	-21	kworker/u4:12+events_unbound	07:35:02	0
3824967	99	56	43,5	cyclictest	3848287	-21	kworker/u4:12+events_unbound	08:45:29	0
3824967	99	56	36,18	cyclictest	3859178	-21	df_abs	09:15:18	0
3824968	99	55	26,27	cyclictest	0	-21	swapper/1	09:40:37	1
3824967	99	55	43,7	cyclictest	3853571	-21	apt-get	09:00:11	0
3824968	99	54	43,7	cyclictest	3832643	-21	kworker/u4:4+events_unbound	08:10:40	1
3824968	99	54	3,47	cyclictest	3832201	-21	ntpq	07:35:32	1
3824968	99	54	3,44	cyclictest	3850541	-21	ntpq	08:45:34	1
3824967	99	54	44,8	cyclictest	314	-21	systemd-journal	09:25:37	0
3824967	99	53	47,5	cyclictest	3841841	-21	kworker/u4:6+events_unbound	08:20:42	0
3824967	99	53	46,5	cyclictest	3950822	-21	kworker/u4:6+events_unbound	11:36:10	0
3824967	99	53	46,5	cyclictest	3826199	-21	kworker/u4:4+events_unbound	07:19:56	0
3824967	99	53	43,7	cyclictest	3962004	-21	dpkg	11:50:14	0
3824967	99	53	43,7	cyclictest	3962004	-21	dpkg	11:50:14	0
3824968	99	52	6,41	cyclictest	0	-21	swapper/1	07:55:13	1
3824967	99	52	43,5	cyclictest	3977330	-21	/usr/sbin/munin	12:10:44	0
3824967	99	52	43,5	cyclictest	3977330	-21	/usr/sbin/munin	12:10:43	0
3824967	99	51	43,6	cyclictest	3940388	-21	kworker/u4:1+events_unbound	11:17:00	0
3824967	99	49	42,5	cyclictest	3917732	-21	kworker/u4:8+events_unbound	10:45:01	0
3824967	99	49	41,6	cyclictest	3852245	-21	kworker/u4:18+events_unbound	09:40:40	0
3824967	99	49	41,5	cyclictest	3993393	-21	modprobe	12:35:01	0
3824967	99	49	29,18	cyclictest	0	-21	swapper/0	09:05:25	0
3824967	99	48	42,5	cyclictest	3894229	-21	kworker/u4:7+events_unbound	10:21:02	0
3824967	99	48	39,7	cyclictest	379	-21	dbus-daemon	09:10:35	0
3824967	99	47	39,6	cyclictest	3961845	-21	latency_hist	11:50:00	0
3824967	99	47	38,6	cyclictest	3848922	-21	fschecks_time	08:40:24	0
3824967	99	47	35,4	cyclictest	3841841	-21	kworker/u4:6+events_unbound	08:15:43	0
3824967	99	47	35,10	cyclictest	3841874	-21	munin-run	08:14:59	0
3824967	99	46	34,7	cyclictest	3830112	-21	cron	07:30:00	0
3824967	99	46	31,6	cyclictest	0	-21	swapper/0	07:45:12	0
3824967	99	45	39,4	cyclictest	3983430	-21	/usr/sbin/munin	12:20:19	0
3824967	99	45	36,6	cyclictest	0	-21	swapper/0	09:35:36	0
3824968	99	44	1,38	cyclictest	3825054	-21	latency_hist	07:10:01	1
3824967	99	44	36,6	cyclictest	3853604	-21	http	09:00:00	0
3824967	99	44	36,6	cyclictest	3851908	-21	sendmail_mailqu	08:50:36	0
3824967	99	44	33,7	cyclictest	0	-21	swapper/0	11:40:31	0
3824967	99	43	36,5	cyclictest	3824964	-21	cyclictest	11:20:33	0
3824967	99	43	32,9	cyclictest	3844909	-21	fschecks_count	08:25:28	0
3824967	99	42	34,6	cyclictest	3868235	-21	/usr/sbin/munin	09:30:17	0
3824967	99	40	33,5	cyclictest	3834041	-21	kworker/u4:11+events_unbound	08:00:02	0
3824967	99	39	30,6	cyclictest	0	-21	swapper/0	07:15:01	0
3824967	99	38	31,5	cyclictest	3841840	-21	kworker/u4:3+events_unbound	08:30:26	0
3824967	99	30	2,20	cyclictest	3824964	-21	cyclictest	07:09:59	0
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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