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 376 highest latencies:

System rack7slot2.osadl.org (updated Thu Feb 12, 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
74360	99	77	2,14	cyclictest	74306	-21	cron	19:10:01	0
74360	99	76	69,5	cyclictest	78122	-21	kworker/u4:4+events_unbound	19:25:02	0
74363	99	75	67,6	cyclictest	250255	-21	kworker/u4:4+events_unbound	00:03:32	1
74363	99	74	67,4	cyclictest	71883	-21	kworker/u4:7+events_unbound	19:45:10	1
74360	99	74	60,11	cyclictest	74358	-21	cyclictest	23:50:10	0
74363	99	73	42,28	cyclictest	279183	-21	sendmail_mailqu	00:30:36	1
74360	99	71	64,5	cyclictest	88294	-21	kworker/u4:0+events_unbound	20:20:02	0
74363	99	70	60,8	cyclictest	102253	-21	kworker/u4:10+events_unbound	21:05:29	1
74363	99	68	60,6	cyclictest	203068	-21	kworker/u4:6+events_unbound	23:05:54	1
74363	99	68	37,28	cyclictest	273665	-21	munin-plugin-st	00:25:00	1
74360	99	67	2,61	cyclictest	97148	-21	apt-get	20:40:09	0
74363	99	66	61,3	cyclictest	129319	-21	kworker/u4:5+events_unbound	21:40:36	1
74363	99	66	59,5	cyclictest	224206	-21	kworker/u4:7+events_unbound	23:31:00	1
74363	99	66	35,27	cyclictest	0	-21	swapper/1	00:10:13	1
74360	99	66	47,15	cyclictest	54	-21	kswapd0	00:30:13	0
74363	99	63	56,5	cyclictest	90808	-21	kworker/u4:16+events_unbound	21:00:00	1
74363	99	63	32,28	cyclictest	0	-21	swapper/1	21:15:30	1
74363	99	63	1,58	cyclictest	200903	-21	ssh	23:00:11	1
74363	99	62	55,5	cyclictest	92501	-21	sed	20:20:17	1
74363	99	62	33,26	cyclictest	0	-21	swapper/1	21:25:38	1
74363	99	62	30,29	cyclictest	0	-21	swapper/1	22:45:28	1
74363	99	62	27,32	cyclictest	168711	-21	kworker/u4:3+rpciod	22:30:17	1
74363	99	61	5,49	cyclictest	192862	-21	irqstats	22:50:22	1
74363	99	61	5,48	cyclictest	235294	-21	ssh	23:40:12	1
74363	99	61	3,52	cyclictest	266093	-21	ntpq	00:15:31	1
74363	99	61	35,23	cyclictest	0	-21	swapper/1	23:20:18	1
74363	99	61	34,24	cyclictest	159819	-21	kworker/u4:4-rpciod	22:20:44	1
74363	99	61	29,29	cyclictest	257815	-21	timerandwakeup	00:05:35	1
74363	99	60	53,5	cyclictest	114373	-21	/usr/sbin/munin	21:20:19	1
74363	99	60	4,53	cyclictest	162860	-21	ntpq	22:15:28	1
74363	99	60	44,8	cyclictest	101012	-21	kworker/u4:2	20:55:00	1
74363	99	60	36,21	cyclictest	220455	-21	kworker/u4:1-rpciod	23:25:08	1
74363	99	60	2,52	cyclictest	209531	-21	ssh	23:10:13	1
74360	99	60	50,7	cyclictest	136818	-21	sh	21:45:35	0
74363	99	59	6,49	cyclictest	154039	-21	ntpq	22:05:25	1
74363	99	59	51,5	cyclictest	232530	-21	sshd	23:36:01	1
74363	99	59	28,27	cyclictest	0	-21	swapper/1	21:50:42	1
74363	99	59	2,52	cyclictest	86523	-21	sed	19:55:24	1
74363	99	59	15,39	cyclictest	105151	-21	ssh	21:10:15	1
74360	99	59	42,9	cyclictest	255	50	irq/23-42890000.ethernet	21:35:33	0
74363	99	58	30,25	cyclictest	0	-21	swapper/1	23:50:22	1
74360	99	58	49,6	cyclictest	273743	-21	latency_hist	00:25:02	0
74363	99	57	6,46	cyclictest	239582	-21	ssh	23:45:17	1
74363	99	57	3,49	cyclictest	214842	-21	ssh	23:15:36	1
74363	99	57	3,49	cyclictest	184489	-21	sh	22:40:30	1
74363	99	57	29,26	cyclictest	168714	-21	kworker/u4:9+rpciod	22:25:32	1
74363	99	57	1,29	cyclictest	127102	-21	apt-get	21:35:13	1
74363	99	56	45,8	cyclictest	252292	-21	latency_hist	00:00:01	1
74363	99	56	4,41	cyclictest	158431	-21	ntpq	22:10:26	1
74363	99	56	26,27	cyclictest	0	-21	swapper/1	19:20:39	1
74363	99	56	2,50	cyclictest	196568	-21	ssh	22:55:11	1
74363	99	56	1,51	cyclictest	94235	-21	ps	20:25:36	1
74363	99	56	1,51	cyclictest	94235	-21	ps	20:25:36	1
74363	99	55	5,45	cyclictest	136521	-21	ssh	21:45:24	1
74363	99	55	31,21	cyclictest	0	-21	swapper/1	00:35:37	1
74363	99	55	26,26	cyclictest	0	-21	swapper/1	00:25:38	1
74363	99	55	24,28	cyclictest	0	-21	swapper/1	22:00:32	1
74363	99	55	24,27	cyclictest	85183	-21	uname	19:50:21	1
74363	99	55	1,51	cyclictest	179402	-21	ssh	22:35:14	1
74363	99	55	1,48	cyclictest	123432	-21	ntpq	21:30:26	1
74360	99	55	8,28	cyclictest	248103	-21	ssh	23:55:11	0
74360	99	55	47,6	cyclictest	114376	-21	/usr/sbin/munin	21:20:20	0
74363	99	54	5,47	cyclictest	144587	-21	ssh	21:55:11	1
74363	99	54	5,44	cyclictest	99839	-21	latency_hist	20:50:02	1
74363	99	54	48,4	cyclictest	0	-21	swapper/1	19:40:09	1
74363	99	54	47,5	cyclictest	88298	-21	kworker/u4:5+events_unbound	20:10:17	1
74363	99	54	4,42	cyclictest	76887	-21	modprobe	19:20:00	1
74363	99	54	2,47	cyclictest	87855	-21	ntpq	20:00:29	1
74363	99	54	1,49	cyclictest	75130	-21	ntpq	19:10:29	1
74360	99	54	38,13	cyclictest	54	-21	kswapd0	00:05:13	0
74363	99	53	30,19	cyclictest	0	-21	swapper/1	20:35:33	1
74363	99	53	2,47	cyclictest	80163	-21	ntpq	19:30:27	1
74363	99	53	22,29	cyclictest	100995	-21	kworker/u4:4+rpciod	21:00:16	1
74363	99	53	1,49	cyclictest	94799	-21	apt-get	20:30:14	1
74360	99	53	44,6	cyclictest	166199	-21	ssh	22:20:01	0
74360	99	53	43,7	cyclictest	74358	-21	cyclictest	22:41:40	0
74360	99	53	34,17	cyclictest	175817	-21	sshd	22:30:28	0
74363	99	52	2,47	cyclictest	91551	-21	ntpq	20:15:25	1
74360	99	52	44,5	cyclictest	261813	-21	ld	00:10:32	0
74360	99	52	44,5	cyclictest	179549	-21	aten_r7power_vo	22:35:15	0
74360	99	52	24,4	cyclictest	15	1	ktimers/0	23:30:36	0
74363	99	51	8,40	cyclictest	1068	-21	snmpd	19:27:04	1
74363	99	51	3,44	cyclictest	15086	-21	kworker/u4:10+xprtiod	20:40:07	1
74363	99	51	2,46	cyclictest	89144	-21	ntpq	20:05:38	1
74363	99	51	1,47	cyclictest	81469	-21	ntpq	19:35:30	1
74360	99	51	44,5	cyclictest	107652	-21	kworker/u4:8+events_unbound	22:54:44	0
74360	99	51	42,6	cyclictest	166217	-21	apt-get	22:20:14	0
74360	99	51	37,10	cyclictest	199178	-21	sh	22:57:44	0
74360	99	51	27,9	cyclictest	0	-21	swapper/0	23:25:41	0
74360	99	50	9,11	cyclictest	135606	-21	modprobe	21:45:01	0
74360	99	50	41,7	cyclictest	314	-21	systemd-journal	20:25:18	0
74360	99	50	41,7	cyclictest	314	-21	systemd-journal	20:25:18	0
74360	99	50	26,19	cyclictest	0	-21	swapper/0	19:35:00	0
74360	99	49	42,5	cyclictest	266466	-21	timerwakeupswit	00:15:39	0
74360	99	49	42,5	cyclictest	205958	-21	diskmemload	23:05:28	0
74360	99	49	30,17	cyclictest	88331	-21	idleruntime-cro	20:05:01	0
74360	99	48	42,4	cyclictest	202055	-21	timerwakeupswit	23:00:37	0
74360	99	48	42,4	cyclictest	110564	-21	switchtime	21:15:36	0
74360	99	48	41,5	cyclictest	82066	-21	apt-key	19:40:02	0
74360	99	48	39,7	cyclictest	228515	-21	kworker/u4:12-rpciod	23:45:17	0
74360	99	48	27,19	cyclictest	83744	-21	fschecks_time	19:45:18	0
74360	99	47	41,4	cyclictest	218648	-21	if_eth0	23:20:19	0
74360	99	47	40,5	cyclictest	239281	-21	modprobe	23:45:01	0
74360	99	47	40,4	cyclictest	150156	-21	timerwakeupswit	22:00:39	0
74360	99	47	33,10	cyclictest	210753	-21	unixbench_singl	23:10:39	0
74363	99	46	1,41	cyclictest	74401	-21	latency_hist	19:10:01	1
74360	99	46	39,5	cyclictest	146429	-21	sshd	21:56:28	0
74360	99	46	39,4	cyclictest	107652	-21	kworker/u4:8-xprtiod	22:10:17	0
74360	99	46	38,5	cyclictest	0	-21	swapper/0	21:10:30	0
74360	99	46	35,8	cyclictest	188042	-21	aten2__	22:45:16	0
74360	99	46	33,6	cyclictest	88294	-21	kworker/u4:0+events_unbound	20:49:30	0
74360	99	46	19,16	cyclictest	0	-21	swapper/0	21:10:01	0
74360	99	46	17,22	cyclictest	255	50	irq/23-42890000.ethernet	19:40:12	0
74360	99	45	38,5	cyclictest	86545	-21	/usr/sbin/munin	19:55:26	0
74360	99	45	37,6	cyclictest	88612	-21	aten_r7power_vo	20:05:17	0
74360	99	45	36,7	cyclictest	100057	-21	aten_r7power_vo	20:50:16	0
74360	99	45	35,7	cyclictest	0	-21	swapper/0	21:30:33	0
74360	99	44	37,5	cyclictest	78609	-21	fschecks_time	19:25:19	0
74360	99	44	37,5	cyclictest	171490	-21	diskmemload	22:25:28	0
74360	99	44	35,7	cyclictest	231169	-21	aten_r7power_vo	23:35:17	0
74360	99	44	35,6	cyclictest	76652	-21	timerwakeupswit	19:15:36	0
74360	99	44	35,6	cyclictest	214021	-21	df_abs	23:15:15	0
74360	99	44	34,7	cyclictest	0	-21	swapper/0	22:05:25	0
74360	99	44	33,8	cyclictest	0	-21	swapper/0	00:00:26	0
74360	99	44	30,6	cyclictest	142648	-21	kworker/u4:6+rpciod	21:55:02	0
74360	99	44	25,5	cyclictest	0	-21	swapper/0	21:25:30	0
74360	99	43	37,4	cyclictest	274532	-21	kernelversion	00:25:20	0
74360	99	43	36,4	cyclictest	88298	-21	kworker/u4:5-rpciod	20:30:21	0
74360	99	43	35,6	cyclictest	90680	-21	unixbench-2d	20:10:38	0
74360	99	42	34,6	cyclictest	101233	-21	aten_r7power_cu	20:55:15	0
74360	99	42	33,7	cyclictest	96086	-21	aten_r7power_cu	20:35:14	0
74360	99	42	30,10	cyclictest	0	-21	swapper/0	20:20:00	0
74360	99	41	33,5	cyclictest	0	-21	swapper/0	21:00:26	0
74360	99	41	30,8	cyclictest	0	-21	swapper/0	00:35:27	0
74360	99	40	30,8	cyclictest	84797	-21	aten_r7power_po	19:50:16	0
74360	99	38	29,6	cyclictest	0	-21	swapper/0	19:10:15	0
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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