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 highest latencies:

System rack7slot2.osadl.org (updated Thu Sep 24, 2026 12:44:08)
Delayed (victim)					Switcher (culprit)			Timestamp	CPU
PID	Prio	Total latency (µs)	T^(,W^*) latency (µs)	Cmd	PID	Prio	Cmd	Timestamp	CPU
219567	99	107	89,6	cyclictest	412512	-21	kworker/u4:7+events_unbound	12:16:06	0
219567	99	104	96,6	cyclictest	323993	-21	kworker/u4:3+events_unbound	10:35:48	0
219567	99	90	71,6	cyclictest	293176	-21	kworker/u4:3+events_unbound	10:20:46	0
219567	99	88	71,6	cyclictest	233597	-21	kworker/u4:9+events_unbound	09:25:40	0
219567	99	86	78,5	cyclictest	319485	-21	kworker/u4:6+events_unbound	10:30:47	0
219567	99	86	27,41	cyclictest	219540	-21	munin-run	07:10:00	0
219567	99	85	77,6	cyclictest	293175	-21	kworker/u4:1+events_unbound	10:10:44	0
219567	99	84	75,7	cyclictest	233597	-21	kworker/u4:9+events_unbound	08:25:31	0
219567	99	84	75,7	cyclictest	233597	-21	kworker/u4:9+events_unbound	08:25:30	0
219567	99	81	74,5	cyclictest	381698	-21	kworker/u4:11+events_unbound	11:46:02	0
219568	99	80	73,5	cyclictest	257596	-21	kworker/u4:5+events_unbound	09:30:40	1
219567	99	80	72,6	cyclictest	250282	-21	kworker/u4:6+events_unbound	09:50:41	0
219567	99	71	57,6	cyclictest	233596	-21	kworker/u4:8+events_unbound	08:05:17	0
219567	99	70	62,6	cyclictest	284195	-21	kworker/u4:4+events_unbound	10:05:43	0
219567	99	70	62,6	cyclictest	284195	-21	kworker/u4:4+events_unbound	10:05:43	0
219567	99	70	56,8	cyclictest	368263	-21	kworker/u4:3-rpciod	11:22:43	0
219568	99	69	63,4	cyclictest	229749	-21	kworker/u4:4+events_unbound	08:00:14	1
219567	99	68	52,5	cyclictest	242608	-21	kworker/u4:0+events_unbound	09:10:40	0
219567	99	67	59,6	cyclictest	376560	-21	kworker/u4:8+events_unbound	11:36:00	0
219568	99	66	26,22	cyclictest	0	-21	swapper/1	09:35:30	1
219567	99	66	59,5	cyclictest	257596	-21	kworker/u4:5+events_unbound	09:40:41	0
219567	99	65	58,5	cyclictest	328510	-21	kworker/u4:8+events_unbound	11:15:57	0
219568	99	64	38,11	cyclictest	241357	-21	modprobe	08:35:01	1
219568	99	63	50,8	cyclictest	37	-21	kcompactd0	11:58:23	1
219568	99	62	53,7	cyclictest	234954	-21	kworker/u4:13+events_unbound	09:25:00	1
219567	99	61	54,5	cyclictest	341946	-21	kworker/u4:7+events_unbound	10:55:52	0
219567	99	59	48,8	cyclictest	37	-21	kcompactd0	09:59:22	0
219567	99	59	4,10	cyclictest	273117	-21	ssh	09:35:12	0
219567	99	58	15,11	cyclictest	381698	-21	kworker/u4:11+events_unbound	12:01:03	0
219567	99	57	51,4	cyclictest	333021	-21	kworker/u4:4+events_unbound	10:50:53	0
219567	99	56	49,5	cyclictest	242608	-21	kworker/u4:0+events_unbound	08:40:35	0
219567	99	55	49,5	cyclictest	219563	-21	cyclictest	12:11:45	0
219567	99	55	38,15	cyclictest	374569	-21	ssh	11:30:01	0
219568	99	54	42,8	cyclictest	316723	-21	sh	10:24:33	1
219568	99	54	41,9	cyclictest	246064	-21	ps	08:50:33	1
219567	99	54	41,10	cyclictest	15	1	ktimers/0	12:32:33	0
219567	99	54	38,6	cyclictest	234954	-21	kworker/u4:13+events_unbound	08:35:35	0
219568	99	53	46,5	cyclictest	242608	-21	kworker/u4:0+events_unbound	08:45:36	1
219567	99	53	43,6	cyclictest	247637	-21	sshd	08:55:38	0
219567	99	53	38,9	cyclictest	330980	-21	fschecks_count	10:40:19	0
219567	99	53	24,26	cyclictest	1073	-21	snmpd	07:25:33	0
219568	99	52	34,15	cyclictest	410270	-21	ssh	12:10:20	1
219567	99	52	45,5	cyclictest	412512	-21	kworker/u4:7+events_unbound	12:21:37	0
219567	99	52	42,8	cyclictest	358575	-21	ssh	11:10:49	0
219567	99	52	37,13	cyclictest	293176	-21	kworker/u4:3-rpciod	10:15:44	0
219568	99	51	45,4	cyclictest	0	-21	swapper/1	10:40:24	1
219568	99	51	43,6	cyclictest	403535	-21	kworker/u4:0+events_unbound	12:31:08	1
219568	99	51	33,13	cyclictest	0	-21	swapper/1	09:25:35	1
219568	99	51	24,8	cyclictest	0	-21	swapper/1	10:39:13	1
219567	99	51	44,5	cyclictest	284195	-21	kworker/u4:4+events_unbound	10:00:42	0
219567	99	51	43,6	cyclictest	368263	-21	kworker/u4:3+events_unbound	11:51:03	0
219567	99	51	30,7	cyclictest	425387	-21	ssh	12:26:32	0
219568	99	50	41,7	cyclictest	380307	-21	switchtime	11:35:38	1
219568	99	50	19,18	cyclictest	0	-21	swapper/1	09:10:19	1
219567	99	50	43,5	cyclictest	363733	-21	kworker/u4:4+events_unbound	11:59:45	0
219567	99	50	42,6	cyclictest	250140	-21	/usr/sbin/munin	09:05:39	0
219568	99	49	42,5	cyclictest	363732	-21	kworker/u4:1+events_unbound	11:35:02	1
219568	99	49	42,5	cyclictest	286481	-21	aten_r7power_en	09:50:14	1
219568	99	49	41,6	cyclictest	243625	-21	systemd	08:40:35	1
219568	99	49	39,8	cyclictest	430541	-21	kworker/u4:5+events_unbound	12:40:01	1
219568	99	49	38,8	cyclictest	300583	-21	grep	10:05:37	1
219568	99	49	38,8	cyclictest	300583	-21	grep	10:05:37	1
219567	99	49	43,4	cyclictest	407366	-21	sshd	12:06:04	0
219567	99	49	41,6	cyclictest	328507	-21	kworker/u4:2+events_unbound	10:46:24	0
219567	99	49	38,7	cyclictest	0	-21	swapper/0	09:30:27	0
219567	99	49	29,16	cyclictest	0	-21	swapper/0	08:20:01	0
219568	99	48	4,35	cyclictest	277239	-21	apt-get	09:40:09	1
219568	99	48	41,5	cyclictest	308933	-21	gltestperf	10:15:23	1
219568	99	48	41,5	cyclictest	304525	-21	gltestperf	10:10:25	1
219568	99	48	41,5	cyclictest	228918	-21	fschecks_count	07:45:18	1
219568	99	48	40,6	cyclictest	336257	-21	unixbench-2d	10:45:37	1
219568	99	48	40,5	cyclictest	418789	-21	sendmail	12:20:01	1
219568	99	48	38,7	cyclictest	53	-21	kswapd0	11:20:32	1
219568	99	48	37,7	cyclictest	37	-21	kcompactd0	11:05:32	1
219568	99	48	36,9	cyclictest	232296	-21	kworker/u4:11+events_unbound	08:15:26	1
219568	99	48	36,10	cyclictest	406082	-21	fschecks_count	12:05:18	1
219567	99	48	42,4	cyclictest	363733	-21	kworker/u4:4+events_unbound	11:43:53	0
219567	99	48	42,4	cyclictest	263893	-21	latency_hist	09:25:01	0
219567	99	48	41,5	cyclictest	233597	-21	kworker/u4:9+events_unbound	09:15:40	0
219568	99	47	40,5	cyclictest	384009	-21	fschecks_count	11:40:19	1
219568	99	47	40,5	cyclictest	256323	-21	grep	09:15:38	1
219568	99	47	39,6	cyclictest	250009	-21	switchtime	09:05:38	1
219568	99	47	39,5	cyclictest	349130	-21	ssh	11:00:34	1
219567	99	47	38,6	cyclictest	245681	-21	fschecks_time	08:50:17	0
219567	99	47	37,7	cyclictest	238291	-21	sshd	08:20:26	0
219567	99	47	36,9	cyclictest	281945	-21	/usr/sbin/munin	09:45:26	0
219567	99	47	32,4	cyclictest	229752	-21	kworker/u4:9+events_unbound	07:55:01	0
219568	99	46	39,5	cyclictest	291852	-21	switchtime	09:55:37	1
219568	99	46	39,5	cyclictest	223425	-21	grep	07:25:02	1
219568	99	46	38,5	cyclictest	210776	-21	kworker/u4:8-rpciod	07:35:20	1
219568	99	46	36,7	cyclictest	0	-21	swapper/1	12:20:32	1
219568	99	46	15,9	cyclictest	0	-21	swapper/1	11:10:19	1
219567	99	46	39,5	cyclictest	227729	-21	fschecks_time	07:40:19	0
219567	99	46	36,7	cyclictest	221022	-21	aten2__	07:15:17	0
219567	99	46	35,7	cyclictest	256	50	irq/23-42890000.ethernet	11:05:30	0
219567	99	46	32,10	cyclictest	37	-21	kcompactd0	11:01:09	0
219567	99	46	31,13	cyclictest	222593	-21	fschecks_time	07:20:20	0
219568	99	45	39,4	cyclictest	322853	-21	sed	10:30:41	1
219568	99	45	38,5	cyclictest	339746	-21	/usr/sbin/munin	10:50:22	1
219568	99	45	38,5	cyclictest	235893	-21	sendmail_mailqu	08:10:42	1
219568	99	45	38,4	cyclictest	299470	-21	sed	10:05:01	1
219568	99	45	37,6	cyclictest	241561	-21	aten2__	08:35:15	1
219568	99	45	36,6	cyclictest	372724	-21	kworker/u4:2-rpciod	11:55:01	1
219568	99	45	36,6	cyclictest	317650	-21	fschecks_count	10:25:18	1
219568	99	45	34,7	cyclictest	0	-21	swapper/1	09:45:22	1
219567	99	45	40,3	cyclictest	225932	-21	modprobe	07:35:01	0
219567	99	45	39,5	cyclictest	374886	-21	/usr/sbin/munin	11:30:16	0
219567	99	45	38,5	cyclictest	232353	-21	sendmail	08:00:00	0
219567	99	45	35,7	cyclictest	226212	-21	aten_r7power_po	07:35:16	0
219567	99	45	33,9	cyclictest	318301	-21	sendmail_mailqu	10:25:37	0
219567	99	45	30,13	cyclictest	430538	-21	kworker/u4:1+events_unbound	12:38:46	0
219568	99	44	5,15	cyclictest	424184	-21	ssh	12:25:24	1
219568	99	44	36,6	cyclictest	344455	-21	irqstats	10:55:23	1
219568	99	44	35,6	cyclictest	0	-21	swapper/1	11:45:32	1
219568	99	44	16,14	cyclictest	378	-21	dbus-daemon	07:30:03	1
219567	99	44	36,6	cyclictest	233625	-21	apt	08:05:00	0
219568	99	43	33,8	cyclictest	247031	-21	gltestperf	08:55:20	1
219568	99	43	33,8	cyclictest	232118	-21	timerwakeupswit	07:55:37	1
219568	99	43	13,6	cyclictest	27	1	ktimers/1	11:25:27	1
219568	99	42	36,4	cyclictest	227471	-21	aten_r7power_en	07:40:16	1
219568	99	42	35,5	cyclictest	362407	-21	ntpq	11:15:31	1
219568	99	42	33,7	cyclictest	401619	-21	df_abs	12:00:18	1
219568	99	42	32,6	cyclictest	231022	-21	kworker/u4:10-rpciod	08:05:46	1
219568	99	41	34,4	cyclictest	220794	-21	kworker/u4:11-rpciod	07:20:00	1
219568	99	41	31,7	cyclictest	231039	-21	modprobe	07:55:01	1
219567	99	41	32,7	cyclictest	244994	-21	timerwakeupswit	08:45:36	0
219568	99	40	34,4	cyclictest	247964	-21	aten2__	09:00:17	1
219568	99	40	32,5	cyclictest	0	-21	swapper/1	08:20:27	1
219568	99	40	32,5	cyclictest	0	-21	swapper/1	07:10:21	1
219568	99	40	27,10	cyclictest	0	-21	swapper/1	08:25:34	1
219568	99	40	27,10	cyclictest	0	-21	swapper/1	08:25:34	1
219567	99	40	34,4	cyclictest	219955	-21	fschecks_count	07:10:19	0
219567	99	40	32,5	cyclictest	228998	-21	fschecks_time	07:45:20	0
219568	99	38	28,6	cyclictest	0	-21	swapper/1	07:25:43	1
219567	99	38	29,7	cyclictest	248104	-21	cpu	09:00:18	0
219567	99	38	29,6	cyclictest	0	-21	swapper/0	08:10:22	0
219567	99	37	27,6	cyclictest	0	-21	swapper/0	08:30:25	0
219568	99	34	28,4	cyclictest	209478	-21	kworker/u4:3-rpciod	07:10:01	1
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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