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 Mon Sep 21, 2026 12:44:09)
Delayed (victim)					Switcher (culprit)			Timestamp	CPU
PID	Prio	Total latency (µs)	T^(,W^*) latency (µs)	Cmd	PID	Prio	Cmd	Timestamp	CPU
488968	99	109	99,7	cyclictest	504429	-21	kworker/u4:19+events_unbound	08:55:42	0
488968	99	100	56,39	cyclictest	587286	-21	fschecks_count	10:25:20	0
488969	99	98	91,5	cyclictest	687144	-21	kworker/u4:2+events_unbound	12:21:07	1
488969	99	96	89,5	cyclictest	490195	-21	kworker/u4:6+events_unbound	07:20:03	1
488968	99	92	40,11	cyclictest	600448	-21	aten_r7power_en	10:40:16	0
488968	99	92	3,9	cyclictest	524686	-21	ssh	09:15:11	0
488969	99	91	84,5	cyclictest	647194	-21	kworker/u4:14+events_unbound	11:51:06	1
488968	99	89	81,5	cyclictest	19	1	rcuc/0	08:15:29	0
488968	99	87	68,16	cyclictest	53	-21	kswapd0	10:30:09	0
488969	99	85	62,17	cyclictest	0	-21	swapper/1	09:15:34	1
488969	99	84	76,6	cyclictest	501775	-21	kworker/u4:3+events_unbound	08:50:41	1
488968	99	84	75,6	cyclictest	584669	-21	kworker/u4:0+events_unbound	10:50:58	0
488969	99	81	73,6	cyclictest	602732	-21	kworker/u4:3+events_unbound	10:55:59	1
488969	99	78	71,5	cyclictest	490193	-21	kworker/u4:4+events_unbound	07:30:10	1
488968	99	71	4,26	cyclictest	520181	-21	rm	09:10:11	0
488968	99	69	60,7	cyclictest	629099	-21	kworker/u4:5+events_unbound	11:21:01	0
488968	99	68	44,9	cyclictest	53	-21	kswapd0	12:35:11	0
488968	99	67	58,7	cyclictest	606585	-21	kworker/u4:4+events_unbound	11:11:01	0
488969	99	63	57,5	cyclictest	664625	-21	kworker/u4:6+events_unbound	12:05:02	1
488968	99	61	42,17	cyclictest	488966	-21	cyclictest	11:00:35	0
488968	99	60	50,8	cyclictest	507840	-21	sshd	08:20:30	0
488968	99	59	51,6	cyclictest	602732	-21	kworker/u4:3+events_unbound	11:00:00	0
488968	99	59	50,5	cyclictest	645030	-21	fschecks_count	11:30:19	0
488968	99	59	50,5	cyclictest	645030	-21	fschecks_count	11:30:19	0
488968	99	59	38,15	cyclictest	497907	-21	apt-get	07:45:08	0
488969	99	58	51,5	cyclictest	476185	-21	kworker/u4:0+events_unbound	07:15:03	1
488968	99	58	45,8	cyclictest	0	-21	swapper/0	10:00:27	0
488969	99	57	2,50	cyclictest	556522	-21	ssh	09:50:24	1
488968	99	57	2,44	cyclictest	501810	-21	apt-get	08:00:12	0
488969	99	56	47,7	cyclictest	641821	-21	sd-accept	11:26:01	1
488969	99	56	47,6	cyclictest	0	-21	swapper/1	07:55:25	1
488968	99	56	46,7	cyclictest	37	-21	kcompactd0	09:35:34	0
488968	99	56	45,8	cyclictest	505231	-21	sshd	08:10:30	0
488968	99	56	45,8	cyclictest	505231	-21	sshd	08:10:29	0
488968	99	56	39,5	cyclictest	633629	-21	kworker/u4:8+events_unbound	11:41:04	0
488968	99	56	39,11	cyclictest	571799	-21	kworker/u4:2-rpciod	10:14:27	0
488969	99	55	47,6	cyclictest	562710	-21	kworker/u4:10+events_unbound	10:20:52	1
488968	99	55	48,5	cyclictest	633630	-21	kworker/u4:9+events_unbound	11:46:05	0
488969	99	54	6,39	cyclictest	703402	-21	ssh	12:35:43	1
488969	99	54	47,5	cyclictest	503667	-21	fschecks_time	08:05:24	1
488969	99	54	47,5	cyclictest	487696	-21	kworker/u4:10+events_unbound	07:10:04	1
488968	99	54	45,7	cyclictest	633629	-21	kworker/u4:8+events_unbound	11:26:03	0
488969	99	53	46,5	cyclictest	673663	-21	kworker/u4:7+events_unbound	12:10:02	1
488969	99	53	37,11	cyclictest	0	-21	swapper/1	10:40:15	1
488968	99	53	46,5	cyclictest	622485	-21	ssh	11:05:12	0
488968	99	53	45,6	cyclictest	539015	-21	/usr/sbin/munin	09:30:39	0
488969	99	52	45,5	cyclictest	620088	-21	kworker/u4:11+events_unbound	11:03:44	1
488968	99	52	44,6	cyclictest	629098	-21	kworker/u4:1+events_unbound	11:17:01	0
488968	99	51	38,8	cyclictest	256	50	irq/23-42890000.ethernet	09:57:13	0
488969	99	50	42,6	cyclictest	521270	-21	systemd	09:10:41	1
488969	99	50	42,6	cyclictest	490189	-21	kworker/u4:3+events_unbound	07:25:46	1
488969	99	50	40,7	cyclictest	0	-21	swapper/1	09:25:34	1
488968	99	50	42,6	cyclictest	681319	-21	/usr/sbin/munin	12:10:40	0
488968	99	50	29,17	cyclictest	0	-21	swapper/0	09:55:01	0
488969	99	49	42,5	cyclictest	693714	-21	cpu	12:25:15	1
488969	99	49	42,5	cyclictest	678170	-21	kworker/u4:1+events_unbound	12:17:46	1
488969	99	49	42,5	cyclictest	672354	-21	processes	12:00:38	1
488969	99	49	42,5	cyclictest	582244	-21	munin-plugin-st	10:20:01	1
488969	99	49	42,5	cyclictest	488966	-21	cyclictest	11:20:24	1
488969	99	49	40,6	cyclictest	0	-21	swapper/1	09:45:15	1
488969	99	49	36,10	cyclictest	561709	-21	systemd	09:55:45	1
488968	99	49	44,3	cyclictest	0	-21	swapper/0	09:45:24	0
488968	99	49	38,9	cyclictest	578528	-21	fschecks_time	10:15:20	0
488969	99	48	42,5	cyclictest	540115	-21	kworker/u4:5+events_unbound	10:05:52	1
488969	99	48	40,6	cyclictest	589187	-21	kworker/u4:6+events_unbound	10:32:25	1
488969	99	48	38,8	cyclictest	0	-21	swapper/1	11:40:12	1
488969	99	48	38,7	cyclictest	0	-21	swapper/1	08:20:30	1
488969	99	48	37,8	cyclictest	0	-21	swapper/1	10:00:25	1
488968	99	48	42,4	cyclictest	667361	-21	gltestperf	11:55:20	0
488968	99	48	41,5	cyclictest	519880	-21	diskmemload	10:20:22	0
488968	99	48	40,6	cyclictest	596825	-21	ssh	10:35:37	0
488968	99	48	37,7	cyclictest	256	50	irq/23-42890000.ethernet	12:05:26	0
488968	99	48	35,10	cyclictest	488966	-21	cyclictest	10:08:36	0
488968	99	48	3,14	cyclictest	649191	-21	ssh	11:35:18	0
488969	99	47	40,5	cyclictest	645111	-21	/usr/sbin/munin	11:30:21	1
488969	99	47	40,5	cyclictest	645111	-21	/usr/sbin/munin	11:30:20	1
488969	99	47	40,5	cyclictest	597198	-21	unixbench_singl	10:35:41	1
488969	99	47	39,5	cyclictest	649928	-21	ssh	11:35:32	1
488969	99	47	34,6	cyclictest	494043	-21	kworker/u4:15+events_unbound	08:36:19	1
488968	99	47	39,5	cyclictest	698007	-21	aten2__	12:30:15	0
488968	99	47	39,5	cyclictest	698007	-21	aten2__	12:30:14	0
488968	99	47	38,7	cyclictest	491656	-21	latency_hist	07:20:02	0
488968	99	47	38,6	cyclictest	0	-21	swapper/0	09:40:29	0
488968	99	47	28,16	cyclictest	0	-21	swapper/0	11:50:20	0
488969	99	46	39,5	cyclictest	610015	-21	ld	10:50:34	1
488969	99	46	39,5	cyclictest	499669	-21	sshd	07:50:19	1
488969	99	46	39,4	cyclictest	0	-21	swapper/1	08:55:40	1
488969	99	46	38,6	cyclictest	605225	-21	gltestperf	10:45:21	1
488969	99	46	35,9	cyclictest	0	-21	swapper/1	12:30:18	1
488969	99	46	35,9	cyclictest	0	-21	swapper/1	12:30:18	1
488968	99	46	39,4	cyclictest	672131	-21	/usr/sbin/munin	12:00:29	0
488968	99	46	38,5	cyclictest	512319	-21	aten2__	08:40:18	0
488968	99	46	37,6	cyclictest	0	-21	swapper/0	07:50:21	0
488968	99	46	36,7	cyclictest	494482	-21	fschecks_count	07:30:19	0
488968	99	46	36,7	cyclictest	317	-21	systemd-journal	08:45:36	0
488968	99	46	31,12	cyclictest	0	-21	swapper/0	07:40:00	0
488969	99	45	38,5	cyclictest	587156	-21	aten_r7power_vo	10:25:16	1
488969	99	45	38,5	cyclictest	519945	-21	latency_hist	09:10:00	1
488969	99	45	38,5	cyclictest	501775	-21	kworker/u4:3+events_unbound	08:34:46	1
488969	99	45	38,5	cyclictest	497880	-21	kworker/u4:8+events_unbound	08:15:04	1
488969	99	45	38,5	cyclictest	488966	-21	cyclictest	09:30:35	1
488969	99	45	37,6	cyclictest	517765	-21	fschecks_count	09:00:18	1
488968	99	45	39,4	cyclictest	519922	-21	latency_hist	09:10:00	0
488968	99	45	37,6	cyclictest	693548	-21	aten2__	12:25:14	0
488968	99	45	29,14	cyclictest	0	-21	swapper/0	09:25:27	0
488968	99	45	28,15	cyclictest	518610	-21	munin-plugin-st	09:05:00	0
488968	99	45	27,16	cyclictest	664625	-21	kworker/u4:6+events_unbound	12:15:19	0
488969	99	44	37,5	cyclictest	631834	-21	gltestperf	11:15:21	1
488969	99	44	37,5	cyclictest	623292	-21	ldconfig	11:05:32	1
488969	99	44	36,6	cyclictest	659180	-21	timerwakeupswit	11:45:38	1
488969	99	44	34,8	cyclictest	551104	-21	ssh	09:45:00	1
488969	99	44	30,9	cyclictest	0	-21	swapper/1	10:10:37	1
488968	99	44	37,5	cyclictest	605121	-21	fschecks_count	10:45:21	0
488968	99	44	37,5	cyclictest	529274	-21	aten_r7power_po	09:20:15	0
488968	99	44	35,7	cyclictest	512026	-21	unixbench_singl	08:35:40	0
488969	99	43	4,32	cyclictest	627767	-21	ssh	11:10:33	1
488969	99	43	36,5	cyclictest	543564	-21	switchtime	09:35:38	1
488969	99	43	35,6	cyclictest	671054	-21	sh	12:00:01	1
488969	99	43	25,5	cyclictest	17	1	rcu_preempt	08:25:18	1
488968	99	43	34,7	cyclictest	489228	-21	aten_r7power_po	07:10:16	0
488969	99	42	4,29	cyclictest	497907	-21	apt-get	07:45:03	1
488969	99	42	35,5	cyclictest	513014	-21	proc_pri	08:40:38	1
488969	99	42	34,6	cyclictest	529575	-21	fschecks_time	09:20:19	1
488969	99	42	10,20	cyclictest	488943	-21	munin-run	07:10:01	1
488968	99	42	35,5	cyclictest	509862	-21	cut	08:30:17	0
488968	99	42	34,6	cyclictest	501555	-21	timerandwakeup	07:55:38	0
488968	99	42	30,8	cyclictest	0	-21	swapper/0	12:20:37	0
488969	99	41	32,7	cyclictest	513626	-21	aten_r7power_cu	08:45:18	1
488968	99	41	34,4	cyclictest	0	-21	swapper/0	07:25:37	0
488969	99	40	33,5	cyclictest	0	-21	swapper/1	07:35:12	1
488969	99	40	30,8	cyclictest	505755	-21	latency_hist	08:15:01	1
488969	99	40	30,8	cyclictest	505755	-21	latency_hist	08:15:01	1
488969	99	40	30,6	cyclictest	0	-21	swapper/1	07:40:19	1
488969	99	40	26,10	cyclictest	502082	-21	sshd	08:00:17	1
488968	99	40	33,5	cyclictest	515778	-21	unixbench-2d	08:50:39	0
488968	99	40	32,6	cyclictest	492025	-21	fschecks_time	07:20:20	0
488968	99	40	31,6	cyclictest	0	-21	swapper/0	08:05:23	0
488968	99	38	30,6	cyclictest	0	-21	swapper/0	07:40:15	0
488968	99	38	30,5	cyclictest	0	-21	swapper/0	08:25:19	0
488968	99	37	30,4	cyclictest	487696	-21	kworker/u4:10-rpciod	07:10:01	0
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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