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 highest latencies:

System rack7slot2.osadl.org (updated Thu Jan 22, 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
330430	99	89	81,6	cyclictest	473481	-21	kworker/u4:13+events_unbound	23:22:20	0
330431	99	79	71,5	cyclictest	460630	-21	kworker/u4:6+events_unbound	23:17:19	1
330431	99	74	35,10	cyclictest	441769	-21	grep	22:45:16	1
330431	99	73	44,27	cyclictest	412372	-21	basename	22:10:18	1
330430	99	73	39,31	cyclictest	417555	-21	/usr/sbin/munin	22:15:39	0
330430	99	73	31,5	cyclictest	0	-21	swapper/0	00:35:24	0
330430	99	70	34,9	cyclictest	504669	-21	date	00:00:02	0
330431	99	69	61,6	cyclictest	519876	-21	kworker/u4:5+events_unbound	00:18:36	1
330430	99	69	5,16	cyclictest	374652	-21	ssh	21:25:25	0
330430	99	69	37,4	cyclictest	412375	-21	grep	22:10:19	0
330430	99	69	37,3	cyclictest	0	-21	swapper/0	21:45:35	0
330430	99	69	28,8	cyclictest	468036	-21	sort	23:15:42	0
330431	99	68	63,3	cyclictest	397640	-21	kworker/u4:13+events_unbound	22:32:10	1
330430	99	68	36,6	cyclictest	494202	-21	kworker/u4:7-xprtiod	00:07:46	0
330431	99	67	4,19	cyclictest	438167	-21	ntpq	22:40:26	1
330431	99	67	38,26	cyclictest	494197	-21	kworker/u4:1-rpciod	23:50:25	1
330431	99	67	35,5	cyclictest	359180	-21	sendmail_mailqu	21:00:35	1
330430	99	67	58,6	cyclictest	331643	-21	kworker/u4:4+events_unbound	19:26:32	0
330431	99	66	33,7	cyclictest	395246	-21	ssh	21:50:18	1
330430	99	66	57,6	cyclictest	452089	-21	kworker/u4:4+events_unbound	22:57:14	0
330430	99	66	36,4	cyclictest	396050	-21	ntp_states	21:50:37	0
330430	99	66	31,5	cyclictest	335535	-21	kworker/u4:14-rpciod	19:50:02	0
330431	99	65	5,15	cyclictest	374650	-21	ntpq	21:25:25	1
330431	99	65	36,4	cyclictest	382318	-21	latency_hist	21:35:01	1
330431	99	65	32,4	cyclictest	481979	-21	kworker/u4:5-rpciod	23:35:42	1
330430	99	65	32,6	cyclictest	358301	-21	sendmail	21:00:01	0
330430	99	65	29,4	cyclictest	312911	-21	kworker/u4:15-rpciod	19:20:00	0
330431	99	64	36,26	cyclictest	473481	-21	kworker/u4:13-rpciod	23:25:27	1
330431	99	64	31,7	cyclictest	425011	-21	df_abs	22:25:18	1
330430	99	64	56,6	cyclictest	336792	-21	kworker/u4:4+events_unbound	19:36:36	0
330430	99	64	4,18	cyclictest	438179	-21	ssh	22:40:27	0
330431	99	63	54,7	cyclictest	502743	-21	kworker/u4:4+events_unbound	23:58:24	1
330431	99	63	53,7	cyclictest	450035	-21	ssh	22:55:08	1
330431	99	62	45,11	cyclictest	332932	-21	modprobe	19:20:00	1
330430	99	61	30,7	cyclictest	480157	-21	kernelversion	23:30:24	0
330430	99	61	25,14	cyclictest	0	-21	swapper/0	22:25:00	0
330431	99	60	52,6	cyclictest	452093	-21	kworker/u4:9+events_unbound	23:42:24	1
330430	99	60	42,16	cyclictest	330775	-21	df_abs	19:10:17	0
330430	99	60	41,17	cyclictest	388	-21	dbus-daemon	00:12:01	0
330430	99	59	51,6	cyclictest	443545	-21	kworker/u4:12+events_unbound	22:47:11	0
330431	99	58	53,3	cyclictest	350684	-21	kworker/u4:3+events_unbound	20:51:49	1
330431	99	58	51,5	cyclictest	527806	-21	kworker/u4:9+events_unbound	00:28:27	1
330430	99	58	50,6	cyclictest	314	-21	systemd-journal	22:02:01	0
330430	99	57	50,5	cyclictest	523550	-21	kworker/u4:7+events_unbound	00:33:38	0
330431	99	56	49,5	cyclictest	435389	-21	ssh	22:37:09	1
330430	99	56	50,3	cyclictest	0	-21	swapper/0	22:37:09	0
330430	99	56	48,6	cyclictest	321838	-21	kworker/u4:3+events_unbound	20:00:01	0
330430	99	56	46,8	cyclictest	464968	-21	systemd	23:12:16	0
330431	99	55	44,8	cyclictest	336412	-21	ps	19:30:36	1
330430	99	55	37,16	cyclictest	424993	-21	df_abs	22:25:18	0
330431	99	54	45,7	cyclictest	422708	-21	sshd	22:22:06	1
330430	99	54	46,6	cyclictest	458829	-21	fschecks_count	23:05:19	0
330430	99	54	44,7	cyclictest	348554	-21	df	20:20:17	0
330431	99	53	44,6	cyclictest	0	-21	swapper/1	21:20:12	1
330430	99	53	36,15	cyclictest	521708	-21	aten2__	00:20:16	0
330430	99	53	34,16	cyclictest	0	-21	swapper/0	21:40:01	0
330431	99	52	44,5	cyclictest	452092	-21	kworker/u4:8+events_unbound	23:11:00	1
330431	99	52	41,8	cyclictest	391200	-21	df	21:45:18	1
330430	99	52	46,4	cyclictest	351940	-21	kworker/u4:7+events_unbound	21:11:52	0
330430	99	52	44,5	cyclictest	484704	-21	grep	23:35:39	0
330431	99	51	42,7	cyclictest	508970	-21	/usr/sbin/munin	00:05:39	1
330431	99	50	42,6	cyclictest	472271	-21	/usr/sbin/munin	23:20:37	1
330431	99	50	40,8	cyclictest	352267	-21	aten_r7power_vo	20:35:15	1
330431	99	50	39,9	cyclictest	346982	-21	latency_hist	20:15:01	1
330430	99	50	43,5	cyclictest	350712	-21	sh	20:29:59	0
330430	99	50	39,8	cyclictest	353824	-21	gltestperf	20:40:21	0
330431	99	49	43,5	cyclictest	330429	-21	cyclictest	19:11:29	1
330431	99	49	41,5	cyclictest	397640	-21	kworker/u4:13+events_unbound	22:17:05	1
330431	99	49	40,6	cyclictest	361507	-21	fschecks_time	21:10:21	1
330431	99	49	40,6	cyclictest	0	-21	swapper/1	21:15:30	1
330431	99	49	39,7	cyclictest	0	-21	swapper/1	00:35:42	1
330430	99	49	42,5	cyclictest	526284	-21	/usr/sbin/munin	00:25:18	0
330430	99	49	42,5	cyclictest	501629	-21	xargs	23:55:37	0
330430	99	49	42,5	cyclictest	345579	-21	unixbench_singl	20:05:36	0
330430	99	49	41,6	cyclictest	312911	-21	kworker/u4:15+events_unbound	19:21:31	0
330430	99	49	25,22	cyclictest	0	-21	swapper/0	21:25:01	0
330431	99	48	42,4	cyclictest	459385	-21	proc_pri	23:05:35	1
330431	99	48	41,5	cyclictest	382710	-21	grep	21:35:15	1
330431	99	48	40,6	cyclictest	351931	-21	systemd	20:31:42	1
330431	99	48	37,9	cyclictest	530190	-21	aten2__	00:30:30	1
330431	99	48	36,8	cyclictest	0	-21	swapper/1	22:50:29	1
330431	99	48	29,12	cyclictest	525557	-21	modprobe	00:25:00	1
330430	99	48	41,5	cyclictest	408814	-21	/usr/sbin/munin	22:05:35	0
330430	99	48	39,6	cyclictest	331645	-21	kworker/u4:6+events_unbound	19:51:39	0
330431	99	47	41,4	cyclictest	342267	-21	fschecks_count	19:55:18	1
330431	99	47	38,7	cyclictest	505801	-21	switchtime	00:00:35	1
330430	99	47	40,5	cyclictest	339001	-21	cat	19:40:33	0
330430	99	47	40,5	cyclictest	0	-21	swapper/0	00:15:31	0
330430	99	47	39,6	cyclictest	400564	-21	unixbench-2d	21:55:40	0
330430	99	47	39,6	cyclictest	351228	-21	gltestperf	20:30:19	0
330430	99	47	39,6	cyclictest	347127	-21	aten_r7power_cu	20:15:15	0
330430	99	47	39,6	cyclictest	336821	-21	ls	19:35:01	0
330430	99	47	38,7	cyclictest	448057	-21	ssh	22:52:12	0
330431	99	46	40,4	cyclictest	514118	-21	wc	00:10:36	1
330431	99	46	40,4	cyclictest	400637	-21	unixbench_singl	21:55:40	1
330431	99	46	38,5	cyclictest	360828	-21	ssh	21:09:59	1
330431	99	46	37,7	cyclictest	348783	-21	gltestperf	20:20:20	1
330430	99	46	38,6	cyclictest	496068	-21	idleruntime-cro	23:50:00	0
330430	99	46	37,7	cyclictest	488277	-21	fschecks_count	23:40:19	0
330430	99	46	37,7	cyclictest	376148	-21	kworker/u4:3+events_unbound	21:31:55	0
330430	99	46	37,7	cyclictest	358504	-21	aten_r7power_cu	21:00:16	0
330430	99	46	35,9	cyclictest	365450	-21	aten_r7power_cu	21:15:15	0
330431	99	45	38,5	cyclictest	353653	-21	fschecks_count	20:40:21	1
330431	99	45	37,6	cyclictest	404512	-21	processes	22:00:35	1
330431	99	45	35,8	cyclictest	410	-21	systemd-logind	23:03:42	1
330430	99	45	38,5	cyclictest	429092	-21	cut	22:30:16	0
330430	99	45	38,5	cyclictest	359728	-21	aten2__	21:05:15	0
330430	99	45	35,7	cyclictest	384759	-21	kworker/u4:7+events_unbound	21:41:58	0
330430	99	45	34,9	cyclictest	475708	-21	fschecks_count	23:25:19	0
330431	99	44	36,6	cyclictest	408979	-21	grep	22:05:37	1
330431	99	44	35,7	cyclictest	492256	-21	aten_r7power_en	23:45:16	1
330431	99	44	35,7	cyclictest	338099	-21	tr	19:40:00	1
330431	99	44	32,6	cyclictest	0	-21	swapper/1	20:25:35	1
330430	99	44	39,3	cyclictest	0	-21	swapper/0	23:50:23	0
330430	99	44	36,6	cyclictest	331642	-21	kworker/u4:1+events_unbound	20:01:41	0
330430	99	44	35,7	cyclictest	354986	-21	fschecks_time	20:45:18	0
330431	99	43	36,5	cyclictest	480218	-21	sed	23:30:24	1
330431	99	43	34,7	cyclictest	0	-21	swapper/1	19:50:35	1
330431	99	43	32,8	cyclictest	334204	-21	cron	19:25:00	1
330430	99	43	32,9	cyclictest	455498	-21	unixbench_multi	23:00:40	0
330431	99	42	35,5	cyclictest	335051	-21	sshd	19:25:30	1
330431	99	42	33,7	cyclictest	387039	-21	/usr/sbin/munin	21:40:19	1
330431	99	41	34,5	cyclictest	354695	-21	aten2__	20:45:15	1
330431	99	41	31,8	cyclictest	345664	-21	kworker/u4:15	20:10:00	1
330430	99	41	33,5	cyclictest	356064	-21	cpu	20:50:15	0
330431	99	40	34,4	cyclictest	0	-21	swapper/1	19:40:21	1
330431	99	40	33,4	cyclictest	0	-21	swapper/1	20:55:25	1
330431	99	40	32,6	cyclictest	340737	-21	latency_hist	19:50:02	1
330431	99	39	27,8	cyclictest	0	-21	swapper/1	20:00:33	1
330430	99	39	30,7	cyclictest	352201	-21	aten_r7power_en	20:35:15	0
330431	99	38	29,6	cyclictest	0	-21	swapper/1	20:15:35	1
330430	99	37	30,5	cyclictest	346212	-21	gltestperf	20:10:21	0
330431	99	27	7,12	cyclictest	330406	-21	munin-run	19:10:00	1
330430	99	25	7,10	cyclictest	330426	-21	awk	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