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 792 highest latencies:

System rack7slot2.osadl.org (updated Fri May 08, 2026 12:44:07)
Delayed (victim)					Switcher (culprit)			Timestamp	CPU
PID	Prio	Total latency (µs)	T^(,W^*) latency (µs)	Cmd	PID	Prio	Cmd	Timestamp	CPU
310230	99	109	98,8	cyclictest	418159	-21	kworker/u4:15+events_unbound	10:40:35	1
310227	99	107	99,6	cyclictest	307713	-21	kworker/u4:4+events_unbound	07:35:01	0
310230	99	93	86,5	cyclictest	356668	-21	kworker/u4:7+events_unbound	09:30:20	1
310227	99	89	83,4	cyclictest	301653	-21	kworker/u4:2+events_unbound	08:10:06	0
310227	99	89	45,39	cyclictest	53	-21	kswapd0	11:00:13	0
310227	99	89	45,39	cyclictest	53	-21	kswapd0	11:00:12	0
310230	99	86	52,32	cyclictest	0	-21	swapper/1	09:15:25	1
310227	99	85	77,6	cyclictest	310153	-21	kworker/u4:1+events_unbound	07:55:04	0
310230	99	83	67,4	cyclictest	504518	-21	kworker/u4:5+events_unbound	12:26:00	1
310227	99	83	4,65	cyclictest	355339	-21	ssh	09:25:26	0
310230	99	81	66,5	cyclictest	413761	-21	kworker/u4:1+events_unbound	10:35:35	1
310227	99	80	73,5	cyclictest	295064	-21	kworker/u4:10+events_unbound	08:05:06	0
310230	99	76	67,6	cyclictest	374499	-21	kworker/u4:10+events_unbound	09:50:23	1
310227	99	76	62,7	cyclictest	341447	-21	ssh	09:10:10	0
310227	99	75	69,4	cyclictest	310153	-21	kworker/u4:1+events_unbound	08:30:10	0
310227	99	75	50,18	cyclictest	485726	-21	fschecks_count	11:55:18	0
310227	99	72	65,5	cyclictest	307714	-21	kworker/u4:5+events_unbound	07:14:57	0
310227	99	72	2,61	cyclictest	415547	-21	apt-get	10:35:10	0
310230	99	71	63,6	cyclictest	370044	-21	kworker/u4:1+events_unbound	10:00:25	1
310230	99	68	60,6	cyclictest	496361	-21	kworker/u4:0+events_unbound	12:15:59	1
310230	99	68	59,6	cyclictest	483118	-21	kworker/u4:2+events_unbound	12:10:59	1
310227	99	68	8,56	cyclictest	451409	-21	ssh	11:15:31	0
310227	99	67	49,16	cyclictest	301653	-21	kworker/u4:2+events_unbound	07:40:00	0
310230	99	65	48,5	cyclictest	315297	-21	kworker/u4:5+events_unbound	09:15:01	1
310227	99	65	56,6	cyclictest	464844	-21	timerandwakeup	11:30:40	0
310227	99	64	55,6	cyclictest	502549	-21	ssh	12:15:02	0
310230	99	63	58,3	cyclictest	315298	-21	kworker/u4:8+events_unbound	08:15:05	1
310230	99	63	35,24	cyclictest	53	-21	kswapd0	11:00:14	1
310230	99	63	35,24	cyclictest	53	-21	kswapd0	11:00:14	1
310227	99	62	9,14	cyclictest	428904	-21	ssh	10:50:11	0
310227	99	62	14,14	cyclictest	446244	-21	apt-get	11:10:11	0
310230	99	61	3,52	cyclictest	381634	-21	sh	09:55:25	1
310227	99	61	43,15	cyclictest	519883	-21	ssh	12:35:01	0
310227	99	61	40,18	cyclictest	390122	-21	sh	10:05:21	0
310227	99	60	47,6	cyclictest	337270	-21	kworker/u4:3+events_unbound	09:46:01	0
310227	99	59	4,38	cyclictest	512180	-21	sh	12:25:28	0
310230	99	58	49,7	cyclictest	53	-21	kswapd0	12:05:18	1
310230	99	58	47,9	cyclictest	336174	-21	systemd	08:50:10	1
310230	99	57	47,7	cyclictest	307712	-21	kworker/u4:3+events_unbound	07:19:58	1
310230	99	56	50,4	cyclictest	310153	-21	kworker/u4:1+events_unbound	09:10:00	1
310230	99	56	49,5	cyclictest	431461	-21	kworker/u4:11+events_unbound	10:55:38	1
310230	99	56	47,7	cyclictest	315	-21	systemd-journal	10:20:30	1
310230	99	56	46,8	cyclictest	521617	-21	systemd	12:36:00	1
310230	99	56	44,6	cyclictest	418159	-21	kworker/u4:15+events_unbound	10:50:36	1
310227	99	56	49,5	cyclictest	337270	-21	kworker/u4:3+events_unbound	09:45:01	0
310227	99	56	45,5	cyclictest	483118	-21	kworker/u4:2+events_unbound	12:06:00	0
310230	99	55	42,10	cyclictest	328577	-21	grep	08:20:21	1
310227	99	55	48,5	cyclictest	517710	-21	kworker/u4:16+events_unbound	12:36:01	0
310227	99	55	36,5	cyclictest	433568	-21	cut	10:55:19	0
310230	99	54	46,6	cyclictest	53	-21	kswapd0	12:35:01	1
310227	99	54	33,7	cyclictest	507681	-21	cut	12:20:21	0
310230	99	52	44,6	cyclictest	321886	-21	systemd	07:55:03	1
310230	99	52	44,5	cyclictest	0	-21	swapper/1	09:35:15	1
310227	99	52	46,4	cyclictest	394159	-21	aten_r7power_po	10:10:16	0
310227	99	52	40,10	cyclictest	53	-21	kswapd0	10:30:11	0
310227	99	52	39,11	cyclictest	345905	-21	aten2__	09:15:17	0
310230	99	51	45,4	cyclictest	404923	-21	kworker/u4:10+events_unbound	11:45:01	1
310230	99	51	45,4	cyclictest	317970	-21	munin-run	07:40:01	1
310230	99	51	44,5	cyclictest	442262	-21	/usr/sbin/munin	11:05:25	1
310230	99	51	41,8	cyclictest	390390	-21	ssh	10:05:26	1
310230	99	51	18,24	cyclictest	0	-21	swapper/1	11:25:26	1
310227	99	51	45,4	cyclictest	363759	-21	grep	09:35:19	0
310227	99	51	45,4	cyclictest	0	-21	swapper/0	11:05:39	0
310227	99	51	43,6	cyclictest	370044	-21	kworker/u4:1+events_unbound	10:15:02	0
310227	99	51	37,9	cyclictest	0	-21	swapper/0	10:00:36	0
310227	99	51	35,12	cyclictest	420829	-21	netstat	10:40:22	0
310227	99	50	8,34	cyclictest	473054	-21	rm	11:40:24	0
310227	99	50	43,5	cyclictest	461733	-21	kworker/u4:14+events_unbound	11:50:02	0
310227	99	50	43,5	cyclictest	359395	-21	fschecks_time	09:30:19	0
310230	99	49	43,4	cyclictest	477671	-21	proc_pri	11:45:37	1
310230	99	49	43,4	cyclictest	0	-21	swapper/1	10:30:32	1
310230	99	49	42,5	cyclictest	464123	-21	gltestperf	11:30:19	1
310230	99	49	42,5	cyclictest	320250	-21	sendmail_mailqu	07:45:35	1
310230	99	49	40,6	cyclictest	0	-21	swapper/1	12:20:11	1
310227	99	49	42,5	cyclictest	502810	-21	aten_r7power_cu	12:15:15	0
310227	99	49	42,5	cyclictest	425666	-21	threads	10:45:38	0
310227	99	49	42,5	cyclictest	318613	-21	gltestperf	07:40:24	0
310230	99	48	42,4	cyclictest	486172	-21	ntp_offset	11:55:30	1
310230	99	48	41,5	cyclictest	318535	-21	fschecks_time	07:40:24	1
310230	99	48	41,5	cyclictest	0	-21	swapper/1	09:40:20	1
310230	99	48	40,6	cyclictest	450848	-21	df_abs	11:15:16	1
310230	99	48	38,8	cyclictest	398969	-21	kernelversion	10:15:21	1
310230	99	48	11,33	cyclictest	407779	-21	ntpq	10:25:24	1
310227	99	48	2,35	cyclictest	403622	-21	ntpq	10:20:33	0
310230	99	47	40,5	cyclictest	456233	-21	unixbench_multi	11:20:40	1
310230	99	47	40,5	cyclictest	446224	-21	/usr/sbin/munin	11:10:40	1
310230	99	47	40,5	cyclictest	329625	-21	kworker/u4:14+events_unbound	08:45:09	1
310227	99	47	41,5	cyclictest	335998	-21	kworker/u4:0+events_unbound	08:52:01	0
310227	99	47	41,4	cyclictest	448417	-21	kworker/u4:3-rpciod	11:25:58	0
310227	99	47	4,10	cyclictest	0	-21	swapper/0	08:20:10	0
310227	99	47	40,5	cyclictest	329625	-21	kworker/u4:14+events_unbound	09:00:14	0
310230	99	46	41,3	cyclictest	326957	-21	kworker/u4:12+events_unbound	08:15:01	1
310230	99	46	37,7	cyclictest	428623	-21	ssh	10:50:00	1
310227	99	46	40,5	cyclictest	333433	-21	kworker/u4:15+events_unbound	08:38:01	0
310227	99	46	38,6	cyclictest	493813	-21	idleruntime-cro	12:05:00	0
310227	99	46	37,7	cyclictest	315	-21	systemd-journal	11:20:43	0
310230	99	45	38,5	cyclictest	338582	-21	idleruntime-cro	09:00:00	1
310230	99	45	38,5	cyclictest	322533	-21	kernelversion	07:55:20	1
310230	99	45	37,6	cyclictest	489894	-21	aten_r7power_po	12:00:16	1
310230	99	45	36,6	cyclictest	329625	-21	kworker/u4:14-rpciod	09:00:15	1
310230	99	45	35,8	cyclictest	468286	-21	sh	11:35:17	1
310227	99	45	39,4	cyclictest	330601	-21	cat	08:25:35	0
310227	99	45	38,5	cyclictest	365556	-21	kworker/u4:4+events_unbound	09:53:00	0
310227	99	45	38,5	cyclictest	324330	-21	grep	08:00:38	0
310227	99	45	23,11	cyclictest	0	-21	swapper/0	11:45:33	0
310230	99	44	35,7	cyclictest	354806	-21	/usr/sbin/munin	09:25:16	1
310230	99	44	34,7	cyclictest	0	-21	swapper/1	09:45:20	1
310227	99	44	37,5	cyclictest	411339	-21	apt-config	10:30:02	0
310227	99	44	37,5	cyclictest	365558	-21	kworker/u4:6+events_unbound	09:59:22	0
310227	99	44	37,5	cyclictest	337762	-21	fschecks_time	08:55:19	0
310230	99	43	36,5	cyclictest	330358	-21	/usr/sbin/munin	08:25:22	1
310230	99	43	34,7	cyclictest	0	-21	swapper/1	10:10:37	1
310230	99	43	34,6	cyclictest	331405	-21	fschecks_time	08:30:17	1
310230	99	43	33,6	cyclictest	0	-21	swapper/1	11:50:29	1
310227	99	43	37,4	cyclictest	307713	-21	kworker/u4:4+events_unbound	08:43:02	0
310227	99	43	36,5	cyclictest	468668	-21	sshd	11:35:24	0
310227	99	43	36,5	cyclictest	326957	-21	kworker/u4:12+events_unbound	08:17:03	0
310227	99	43	36,5	cyclictest	319312	-21	kworker/u4:19+events_unbound	09:21:40	0
310227	99	43	34,6	cyclictest	319752	-21	fschecks_count	07:45:18	0
310227	99	43	27,6	cyclictest	335999	-21	kworker/u4:2-rpciod	08:50:01	0
310230	99	42	36,4	cyclictest	333063	-21	proc_pri	08:35:37	1
310230	99	42	36,4	cyclictest	311508	-21	latency_hist	07:15:01	1
310230	99	42	34,6	cyclictest	314036	-21	systemd	07:24:58	1
310230	99	42	34,5	cyclictest	325430	-21	switchtime	08:05:37	1
310230	99	42	33,6	cyclictest	350609	-21	fschecks_count	09:20:21	1
310230	99	42	31,7	cyclictest	0	-21	swapper/1	08:40:25	1
310227	99	42	34,5	cyclictest	312427	-21	mailstats	07:15:35	0
310227	99	42	32,8	cyclictest	313662	-21	grep	07:20:34	0
310227	99	42	22,18	cyclictest	0	-21	swapper/0	07:25:15	0
310230	99	41	31,8	cyclictest	315610	-21	aten2__	07:30:20	1
310227	99	41	35,5	cyclictest	317927	-21	kworker/u4:17+events_unbound	07:55:08	0
310230	99	39	26,9	cyclictest	315318	-21	modprobe	07:30:00	1
310227	99	39	32,5	cyclictest	341029	-21	grep	09:05:37	0
310230	99	37	31,4	cyclictest	0	-21	swapper/1	08:00:31	1
310230	99	28	18,6	cyclictest	0	-21	swapper/1	07:10:02	1
310227	99	26	1,4	cyclictest	15	1	ktimers/0	07:10:00	0
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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