OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of system in rack #7, slot #2

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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 Tue Sep 15, 2026 00:44:08)
Delayed (victim)					Switcher (culprit)			Timestamp	CPU
PID	Prio	Total latency (µs)	T^(,W^*) latency (µs)	Cmd	PID	Prio	Cmd	Timestamp	CPU
368969	99	108	99,6	cyclictest	381705	-21	kworker/u4:6+events_unbound	20:27:12	0
368969	99	104	95,7	cyclictest	469598	-21	kworker/u4:13+events_unbound	22:42:42	0
368969	99	103	98,3	cyclictest	505673	-21	kworker/u4:0+events_unbound	23:42:48	0
368969	99	95	87,6	cyclictest	545348	-21	kworker/u4:6+events_unbound	23:52:51	0
368969	99	92	85,5	cyclictest	492247	-21	kworker/u4:18+events_unbound	22:52:42	0
368969	99	92	70,20	cyclictest	53	-21	kswapd0	22:45:10	0
368969	99	91	83,6	cyclictest	554335	-21	kworker/u4:8+events_unbound	00:27:58	0
368969	99	91	83,6	cyclictest	496726	-21	kworker/u4:7+events_unbound	22:57:43	0
368969	99	87	80,5	cyclictest	580625	-21	kworker/u4:5+events_unbound	00:33:00	0
368969	99	86	79,5	cyclictest	549831	-21	kworker/u4:2+events_unbound	23:57:52	0
368969	99	85	78,5	cyclictest	411495	-21	kworker/u4:1+events_unbound	21:22:23	0
368969	99	83	75,6	cyclictest	456531	-21	kworker/u4:0+events_unbound	22:37:41	0
368969	99	79	71,6	cyclictest	393577	-21	kworker/u4:11+events_unbound	20:52:15	0
368969	99	79	71,6	cyclictest	392191	-21	kworker/u4:6+events_unbound	20:37:12	0
368970	99	78	40,35	cyclictest	0	-21	swapper/1	21:30:40	1
368970	99	77	7,27	cyclictest	423611	-21	ssh	21:35:28	1
368970	99	77	40,32	cyclictest	0	-21	swapper/1	00:35:30	1
368970	99	73	54,15	cyclictest	1073	-21	snmpd	19:20:24	1
368969	99	73	66,5	cyclictest	558180	-21	kworker/u4:10+events_unbound	00:07:54	0
368970	99	72	47,23	cyclictest	400	-21	systemd-logind	23:27:46	1
368970	99	72	34,34	cyclictest	504209	-21	ntp_kernel_pll_	23:05:29	1
368969	99	72	57,10	cyclictest	561680	-21	ntpq	00:10:34	0
368969	99	72	56,6	cyclictest	580625	-21	kworker/u4:5+events_unbound	00:35:01	0
368969	99	71	64,5	cyclictest	383100	-21	kworker/u4:0+events_unbound	20:17:10	0
368969	99	70	3,51	cyclictest	504321	-21	ssh	23:05:36	0
368969	99	70	32,29	cyclictest	256	50	irq/23-42890000.ethernet	20:40:12	0
368970	99	69	39,27	cyclictest	398691	-21	systemd	21:02:17	1
368970	99	69	36,31	cyclictest	543498	-21	fschecks_count	23:50:19	1
368970	99	69	25,6	cyclictest	0	-21	swapper/1	23:00:26	1
368969	99	69	62,4	cyclictest	0	-21	swapper/0	22:20:37	0
368969	99	68	61,5	cyclictest	376586	-21	kworker/u4:2+events_unbound	19:37:03	0
368970	99	67	58,7	cyclictest	554335	-21	kworker/u4:8+events_unbound	00:22:56	1
368970	99	67	31,34	cyclictest	454454	-21	aten_r7power_po	22:10:15	1
368970	99	67	31,34	cyclictest	0	-21	swapper/1	00:00:35	1
368970	99	67	28,35	cyclictest	0	-21	swapper/1	23:45:25	1
368969	99	67	59,6	cyclictest	523660	-21	kworker/u4:6+events_unbound	23:27:47	0
368970	99	66	29,34	cyclictest	0	-21	swapper/1	22:45:39	1
368970	99	66	28,34	cyclictest	0	-21	swapper/1	23:10:12	1
368970	99	65	50,8	cyclictest	0	-21	swapper/1	21:40:17	1
368970	99	65	35,27	cyclictest	0	-21	swapper/1	23:40:31	1
368970	99	65	30,32	cyclictest	0	-21	swapper/1	22:00:42	1
368970	99	65	30,31	cyclictest	0	-21	swapper/1	00:25:29	1
368970	99	65	29,32	cyclictest	0	-21	swapper/1	22:30:37	1
368970	99	64	32,29	cyclictest	468055	-21	df_abs	22:25:16	1
368970	99	64	29,32	cyclictest	0	-21	swapper/1	23:15:22	1
368970	99	64	29,32	cyclictest	0	-21	swapper/1	22:15:14	1
368970	99	64	28,32	cyclictest	0	-21	swapper/1	23:30:27	1
368970	99	64	21,9	cyclictest	531101	-21	sed	23:35:40	1
368969	99	64	57,5	cyclictest	397386	-21	kworker/u4:0+events_unbound	21:07:22	0
368970	99	63	29,31	cyclictest	0	-21	swapper/1	00:05:31	1
368970	99	63	28,31	cyclictest	0	-21	swapper/1	00:15:24	1
368970	99	63	27,6	cyclictest	0	-21	swapper/1	23:55:36	1
368969	99	63	56,5	cyclictest	376589	-21	kworker/u4:8+events_unbound	19:47:05	0
368970	99	62	32,27	cyclictest	495869	-21	grep	22:55:41	1
368970	99	62	26,6	cyclictest	0	-21	swapper/1	20:40:01	1
368970	99	62	21,6	cyclictest	0	-21	swapper/1	00:30:36	1
368969	99	62	54,6	cyclictest	540863	-21	kworker/u4:12+events_unbound	23:47:49	0
368970	99	61	30,29	cyclictest	397426	-21	cron	21:00:01	1
368970	99	61	30,29	cyclictest	397426	-21	cron	21:00:00	1
368970	99	61	28,4	cyclictest	0	-21	swapper/1	20:50:38	1
368970	99	61	25,5	cyclictest	0	-21	swapper/1	20:25:35	1
368970	99	61	23,35	cyclictest	442165	-21	unixbench_singl	21:55:39	1
368970	99	61	10,14	cyclictest	0	-21	swapper/1	20:00:12	1
368970	99	60	36,22	cyclictest	399957	-21	kworker/u4:10-rpciod	21:25:32	1
368970	99	60	30,28	cyclictest	401530	-21	unixbench-2d	21:10:41	1
368970	99	60	30,28	cyclictest	371515	-21	sh	19:20:00	1
368970	99	60	29,5	cyclictest	390964	-21	munin-plugin-st	20:35:01	1
368970	99	60	25,7	cyclictest	0	-21	swapper/1	00:12:13	1
368970	99	60	24,5	cyclictest	0	-21	swapper/1	22:40:16	1
368969	99	60	53,5	cyclictest	380428	-21	kworker/u4:4+events_unbound	19:57:07	0
368969	99	60	52,6	cyclictest	365247	-21	kworker/u4:6+events_unbound	19:22:01	0
368970	99	59	27,4	cyclictest	0	-21	swapper/1	22:05:19	1
368970	99	59	26,5	cyclictest	0	-21	swapper/1	22:50:34	1
368970	99	59	26,5	cyclictest	0	-21	swapper/1	21:45:36	1
368970	99	59	24,31	cyclictest	0	-21	swapper/1	22:21:30	1
368970	99	59	23,6	cyclictest	0	-21	swapper/1	20:45:01	1
368969	99	59	51,6	cyclictest	394847	-21	kworker/u4:13+events_unbound	20:47:16	0
368970	99	58	3,17	cyclictest	410030	-21	ssh	21:20:26	1
368970	99	58	26,5	cyclictest	0	-21	swapper/1	19:55:26	1
368970	99	58	24,5	cyclictest	0	-21	swapper/1	19:50:42	1
368970	99	58	18,9	cyclictest	0	-21	swapper/1	20:20:15	1
368969	99	58	50,6	cyclictest	433729	-21	kworker/u4:11+events_unbound	22:17:34	0
368969	99	58	46,9	cyclictest	509125	-21	unixbench_singl	23:10:38	0
368969	99	58	41,7	cyclictest	433730	-21	kworker/u4:12+events_unbound	21:51:46	0
368970	99	57	24,6	cyclictest	0	-21	swapper/1	22:35:25	1
368969	99	57	42,13	cyclictest	0	-21	swapper/0	23:35:25	0
368969	99	56	48,6	cyclictest	397386	-21	kworker/u4:0+events_unbound	21:02:17	0
368970	99	55	24,6	cyclictest	377056	-21	fschecks_count	19:40:20	1
368969	99	55	46,6	cyclictest	419279	-21	grep	21:30:37	0
368970	99	54	26,3	cyclictest	0	-21	swapper/1	23:20:37	1
368969	99	54	8,9	cyclictest	383130	-21	apt-get	20:05:09	0
368969	99	54	47,5	cyclictest	0	-21	swapper/0	23:30:27	0
368969	99	53	38,10	cyclictest	514757	-21	ssh	23:17:28	0
368969	99	53	31,20	cyclictest	382287	-21	fschecks_count	20:00:25	0
368970	99	52	45,5	cyclictest	399252	-21	gltestperf	21:05:18	1
368970	99	52	44,5	cyclictest	0	-21	swapper/1	19:30:27	1
368969	99	52	46,4	cyclictest	429830	-21	kworker/u4:8+events_unbound	22:00:01	0
368969	99	52	45,5	cyclictest	399957	-21	kworker/u4:10+events_unbound	21:17:21	0
368969	99	51	43,6	cyclictest	519383	-21	sd-accept	23:22:45	0
368969	99	50	4,7	cyclictest	0	-21	swapper/0	20:30:12	0
368969	99	50	36,8	cyclictest	454015	-21	modprobe	22:10:00	0
368970	99	49	42,5	cyclictest	437234	-21	uname	21:50:34	1
368969	99	49	42,5	cyclictest	456877	-21	sshd	22:12:32	0
368969	99	49	40,6	cyclictest	0	-21	swapper/0	22:00:15	0
368969	99	48	41,5	cyclictest	423303	-21	gltestperf	21:35:20	0
368969	99	48	34,10	cyclictest	0	-21	swapper/0	00:20:33	0
368969	99	48	33,10	cyclictest	418008	-21	modprobe	21:30:01	0
368970	99	47	40,5	cyclictest	404882	-21	aten_r7power_cu	21:15:16	1
368969	99	47	38,6	cyclictest	565212	-21	apt-get	00:15:10	0
368969	99	47	36,9	cyclictest	0	-21	swapper/0	21:45:26	0
368969	99	46	39,5	cyclictest	401255	-21	/usr/sbin/munin	21:10:38	0
368969	99	46	38,6	cyclictest	549831	-21	kworker/u4:2+events_unbound	00:00:20	0
368969	99	46	27,7	cyclictest	501185	-21	kworker/u4:4+events_unbound	23:02:55	0
368969	99	46	27,6	cyclictest	429829	-21	kworker/u4:4+events_unbound	21:44:35	0
368969	99	45	37,6	cyclictest	433729	-21	kworker/u4:11+events_unbound	22:25:13	0
368969	99	45	37,6	cyclictest	396432	-21	aten_r7power_vo	20:55:17	0
368969	99	45	37,6	cyclictest	396432	-21	aten_r7power_vo	20:55:17	0
368969	99	45	37,6	cyclictest	384915	-21	fschecks_count	20:10:20	0
368969	99	45	37,5	cyclictest	472697	-21	fschecks_time	22:30:20	0
368970	99	43	36,5	cyclictest	375599	-21	aten_r7power_en	19:35:14	1
368969	99	43	37,4	cyclictest	374040	-21	kworker/u4:3+events_unbound	19:30:02	0
368970	99	42	33,6	cyclictest	356406	-21	kworker/u4:5-rpciod	19:10:01	1
368969	99	42	35,5	cyclictest	370417	-21	aten2__	19:15:15	0
368969	99	42	34,6	cyclictest	376924	-21	aten_r7power_po	19:40:18	0
368969	99	42	34,6	cyclictest	370191	-21	kworker/u4:8+events_unbound	19:25:02	0
368970	99	41	29,10	cyclictest	0	-21	swapper/1	20:15:36	1
368970	99	41	28,10	cyclictest	0	-21	swapper/1	20:45:35	1
368969	99	41	31,8	cyclictest	370048	-21	sshd	19:10:37	0
368970	99	40	34,4	cyclictest	370191	-21	kworker/u4:8-rpciod	19:25:16	1
368969	99	39	33,4	cyclictest	379596	-21	fschecks_count	19:50:20	0
368969	99	39	32,5	cyclictest	384448	-21	kworker/u4:11+events_unbound	20:20:02	0
368970	99	38	32,4	cyclictest	378327	-21	fschecks_count	19:45:19	1
368970	99	38	29,7	cyclictest	384319	-21	unixbench-2d	20:05:41	1
368970	99	38	27,8	cyclictest	0	-21	swapper/1	19:10:16	1
368970	99	37	28,6	cyclictest	384448	-21	kworker/u4:11+events_unbound	20:12:09	1
368969	99	29	3,15	cyclictest	368966	-21	cyclictest	19:10:01	0
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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