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 100 highest latencies:

System rack7slot2.osadl.org (updated Sun Jan 04, 2026 00:44:10)
Delayed (victim)					Switcher (culprit)			Timestamp	CPU
PID	Prio	Total latency (µs)	T^(,W^*) latency (µs)	Cmd	PID	Prio	Cmd	Timestamp	CPU
431071	99	106	98,6	cyclictest	489775	-21	kworker/u4:11+events_unbound	21:52:51	1
431071	99	104	96,6	cyclictest	510327	-21	kworker/u4:6+events_unbound	22:07:54	1
431071	99	103	95,6	cyclictest	634052	-21	kworker/u4:18+events_unbound	00:38:21	1
431071	99	103	95,6	cyclictest	588684	-21	kworker/u4:12+events_unbound	23:43:12	1
431071	99	102	94,6	cyclictest	564100	-21	kworker/u4:1+events_unbound	23:28:10	1
431071	99	98	90,6	cyclictest	551535	-21	kworker/u4:0+events_unbound	22:58:06	1
431071	99	96	80,6	cyclictest	25969	-21	kworker/u4:12+events_unbound	19:12:28	1
431071	99	95	87,6	cyclictest	539676	-21	kworker/u4:15+events_unbound	22:43:02	1
431071	99	94	86,6	cyclictest	555704	-21	kworker/u4:4+events_unbound	23:03:07	1
431071	99	93	86,5	cyclictest	442641	-21	kworker/u4:12+events_unbound	20:27:37	1
431071	99	93	86,5	cyclictest	429807	-21	kworker/u4:3+events_unbound	19:37:32	1
431071	99	93	85,6	cyclictest	434910	-21	kworker/u4:10+events_unbound	19:47:31	1
431071	99	92	85,5	cyclictest	597058	-21	kworker/u4:2+events_unbound	00:03:15	1
431071	99	92	85,5	cyclictest	446433	-21	kworker/u4:1+events_unbound	20:07:33	1
431071	99	90	82,6	cyclictest	535511	-21	kworker/u4:5+events_unbound	22:37:59	1
431071	99	88	81,5	cyclictest	446433	-21	kworker/u4:1+events_unbound	20:37:37	1
431071	99	88	75,5	cyclictest	434908	-21	kworker/u4:0+events_unbound	19:42:32	1
431070	99	87	69,15	cyclictest	54	-21	kswapd0	23:15:07	0
431070	99	87	69,15	cyclictest	54	-21	kswapd0	23:15:06	0
431071	99	86	79,5	cyclictest	446433	-21	kworker/u4:1+events_unbound	20:42:39	1
431071	99	85	78,5	cyclictest	432364	-21	kworker/u4:11+events_unbound	19:57:32	1
431071	99	84	77,5	cyclictest	455288	-21	kworker/u4:19+events_unbound	20:57:41	1
431071	99	84	76,6	cyclictest	476854	-21	kworker/u4:6+events_unbound	21:37:49	1
431071	99	79	72,5	cyclictest	434908	-21	kworker/u4:0+events_unbound	20:12:36	1
431071	99	78	54,17	cyclictest	54	-21	kswapd0	22:00:10	1
431071	99	77	70,5	cyclictest	447688	-21	kworker/u4:3+events_unbound	20:22:36	1
431071	99	76	71,3	cyclictest	472552	-21	kworker/u4:4+events_unbound	21:22:46	1
431070	99	76	64,9	cyclictest	54	-21	kswapd0	23:45:08	0
431070	99	75	54,18	cyclictest	54	-21	kswapd0	22:00:13	0
431071	99	74	68,4	cyclictest	429807	-21	kworker/u4:3+events_unbound	19:17:29	1
431070	99	72	58,10	cyclictest	54	-21	kswapd0	21:40:08	0
431070	99	70	58,8	cyclictest	388	-21	dbus-daemon	21:27:46	0
431070	99	68	54,10	cyclictest	501871	-21	kworker/u4:9+events_unbound	22:05:32	0
431070	99	66	19,24	cyclictest	461630	-21	diskmemload	21:35:32	0
431071	99	64	57,5	cyclictest	564103	-21	kworker/u4:11+events_unbound	23:15:08	1
431071	99	64	57,5	cyclictest	564103	-21	kworker/u4:11+events_unbound	23:15:07	1
431071	99	64	56,5	cyclictest	0	-21	swapper/1	22:20:25	1
431070	99	64	17,26	cyclictest	595576	-21	ssh	23:50:25	0
431070	99	63	52,9	cyclictest	388	-21	dbus-daemon	23:48:13	0
431070	99	63	51,8	cyclictest	499680	-21	ssh	21:55:01	0
431070	99	62	56,4	cyclictest	54	-21	kswapd0	21:30:13	0
431070	99	62	29,5	cyclictest	437706	-21	apt-get	19:35:12	0
431070	99	62	19,16	cyclictest	517306	-21	ntpq	22:15:28	0
431071	99	61	52,6	cyclictest	570931	-21	sh	23:20:29	1
431070	99	61	22,10	cyclictest	557145	-21	ssh	23:04:28	0
431070	99	61	18,19	cyclictest	599289	-21	diskstats	23:55:20	0
431070	99	61	16,21	cyclictest	500255	-21	/usr/sbin/munin	21:55:16	0
431070	99	60	21,12	cyclictest	546128	-21	ntpq	22:50:28	0
431070	99	60	21,11	cyclictest	578045	-21	ssh	23:29:47	0
431070	99	60	21,11	cyclictest	563267	-21	ssh	23:10:48	0
431070	99	60	20,15	cyclictest	458577	-21	ntpq	20:55:28	0
431070	99	60	19,15	cyclictest	628458	-21	ssh	00:30:25	0
431070	99	60	18,21	cyclictest	578842	-21	tune2fs	23:30:20	0
431070	99	60	14,25	cyclictest	467275	-21	grep	21:15:39	0
431071	99	59	52,5	cyclictest	559906	-21	kworker/u4:9+events_unbound	23:33:11	1
431071	99	59	52,5	cyclictest	559906	-21	kworker/u4:9+events_unbound	23:08:05	1
431070	99	59	52,5	cyclictest	522950	-21	kworker/u4:0+events_unbound	22:25:01	0
431070	99	59	20,13	cyclictest	435741	-21	ntpq	19:25:31	0
431070	99	59	19,15	cyclictest	560528	-21	ssh	23:08:11	0
431070	99	59	16,23	cyclictest	1068	-21	snmpd	21:45:19	0
431070	99	59	14,21	cyclictest	573648	-21	sshd	23:24:18	0
431071	99	58	51,5	cyclictest	546061	-21	/usr/sbin/munin	22:50:24	1
431070	99	58	36,18	cyclictest	440333	-21	apt-get	19:45:13	0
431070	99	58	22,29	cyclictest	616115	-21	ntpq	00:15:27	0
431070	99	58	21,10	cyclictest	610104	-21	ssh	00:08:20	0
431070	99	58	20,13	cyclictest	621962	-21	ssh	00:22:32	0
431070	99	58	18,15	cyclictest	457347	-21	ntpq	20:50:31	0
431070	99	58	18,13	cyclictest	531167	-21	ssh	22:32:06	0
431070	99	57	3,27	cyclictest	431044	-21	apt-get	19:10:09	0
431070	99	57	20,13	cyclictest	1068	-21	snmpd	21:00:25	0
431070	99	57	19,14	cyclictest	527592	-21	ssh	22:28:02	0
431070	99	57	15,21	cyclictest	516404	-21	ssh	22:15:00	0
431070	99	57	12,21	cyclictest	553376	-21	sendmail	23:00:01	0
431071	99	56	48,6	cyclictest	0	-21	swapper/1	23:55:13	1
431070	99	56	38,14	cyclictest	436454	-21	apt-get	19:30:18	0
431070	99	56	26,11	cyclictest	632583	-21	ntpq	00:35:25	0
431070	99	56	20,11	cyclictest	537216	-21	acpi	22:40:12	0
431070	99	56	19,11	cyclictest	612792	-21	ssh	00:10:54	0
431070	99	56	19,10	cyclictest	463963	-21	ssh	21:11:51	0
431071	99	55	48,5	cyclictest	448944	-21	kworker/u4:11+events_unbound	20:17:00	1
431071	99	55	47,6	cyclictest	490053	-21	sshd	21:42:47	1
431071	99	55	34,7	cyclictest	489776	-21	kworker/u4:12+events_unbound	21:58:59	1
431070	99	55	34,17	cyclictest	461136	-21	ntpq	21:05:27	0
431070	99	55	18,10	cyclictest	432564	-21	apt-get	19:15:12	0
431070	99	55	17,15	cyclictest	448443	-21	ntpq	20:15:24	0
431070	99	55	17,14	cyclictest	447388	-21	mailstats	20:10:35	0
431070	99	55	16,14	cyclictest	543576	-21	ssh	22:47:19	0
431071	99	54	47,5	cyclictest	588684	-21	kworker/u4:12+events_unbound	00:05:59	1
431070	99	54	45,6	cyclictest	445210	-21	sh	20:05:01	0
431070	99	54	37,12	cyclictest	445918	-21	ntpq	20:05:26	0
431070	99	54	20,11	cyclictest	442224	-21	ntp_states	19:50:30	0
431070	99	54	17,13	cyclictest	624391	-21	ntpq	00:25:27	0
431070	99	54	16,14	cyclictest	536118	-21	ssh	22:38:37	0
431070	99	54	14,19	cyclictest	0	-21	swapper/0	21:20:23	0
431071	99	53	46,5	cyclictest	0	-21	swapper/1	23:45:34	1
431071	99	53	45,6	cyclictest	624972	-21	/usr/sbin/munin	00:25:39	1
431071	99	53	4,33	cyclictest	512479	-21	ssh	22:10:11	1
431070	99	53	34,12	cyclictest	451085	-21	ntpq	20:25:31	0
431070	99	53	31,18	cyclictest	456178	-21	ps	20:45:34	0
431070	99	53	16,13	cyclictest	448971	-21	cron	20:20:02	0
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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