OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of system in rack #0, slot #5

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.
Unexpectedly long latencies may be caused by SMIs
Total number of samples: 100 million
Resolution of latency scale: normal
Duration: 5 hours, 33 minutes, lowest P state: performance
Compare latency of primary with shadow system

Characteristics of the 100 highest latencies:

System rack0slot5.osadl.org (updated Thu Sep 10, 2026 00:43:48)
Delayed (victim)					Switcher (culprit)			Timestamp	CPU
PID	Prio	Total latency (µs)	T^(,W^*) latency (µs)	Cmd	PID	Prio	Cmd	Timestamp	CPU
4063706	99	508	0,506	cyclictest	0	-21	swapper/6	20:43:31	12
4063716	99	501	500,1	cyclictest	4100476	-21	kworker/9:2+i915-unordered	19:53:31	15
4063708	99	500	498,2	cyclictest	4136758	-21	kworker/7:0+i915-unordered	21:27:31	13
4063739	99	496	494,2	cyclictest	4144736	-21	kworker/14:1+i915-unordered	20:43:31	6
4063683	99	495	32,461	cyclictest	0	-21	swapper/0	19:41:31	0
4063708	99	483	453,30	cyclictest	0	-21	swapper/7	22:32:30	13
4063683	99	478	29,29	cyclictest	4148967	-21	perf	20:54:26	0
4063708	99	475	444,31	cyclictest	0	-21	swapper/7	19:41:31	13
4063726	99	472	23,30	cyclictest	0	-21	swapper/11	23:21:14	3
4063726	99	471	24,29	cyclictest	0	-21	swapper/11	00:30:15	3
4063726	99	471	22,30	cyclictest	0	-21	swapper/11	21:54:16	3
4063726	99	471	22,29	cyclictest	0	-21	swapper/11	22:08:52	3
4063686	99	471	20,29	cyclictest	0	-21	swapper/1	19:28:13	1
4063726	99	469	22,30	cyclictest	0	-21	swapper/11	21:29:15	3
4063739	99	468	20,30	cyclictest	0	-21	swapper/14	23:12:15	6
4063683	99	467	20,30	cyclictest	0	-21	swapper/0	19:35:31	0
4063689	99	465	21,30	cyclictest	0	-21	swapper/2	22:52:30	8
4063713	99	461	460,1	cyclictest	697	50	irq/159-i915	19:43:31	14
4063731	99	460	11,29	cyclictest	0	-21	swapper/12	20:29:53	4
4063721	99	460	459,1	cyclictest	4084396	-21	kworker/10:1+i915-unordered	20:06:31	2
4063739	99	459	16,29	cyclictest	0	-21	swapper/14	20:12:31	6
4063726	99	457	11,30	cyclictest	0	-21	swapper/11	20:09:52	3
4063739	99	456	8,30	cyclictest	0	-21	swapper/14	00:00:15	6
4063739	99	456	8,30	cyclictest	0	-21	swapper/14	00:00:15	6
4063686	99	455	425,30	cyclictest	0	-21	swapper/1	19:53:31	1
4063739	99	454	9,29	cyclictest	0	-21	swapper/14	00:18:15	6
4063731	99	454	6,29	cyclictest	0	-21	swapper/12	21:54:53	4
4063731	99	452	4,30	cyclictest	0	-21	swapper/12	22:45:14	4
4063731	99	452	2,29	cyclictest	0	-21	swapper/12	23:11:53	4
4063726	99	450	447,2	cyclictest	4124590	-21	kworker/u64:5+events_unbound	21:00:54	3
4063726	99	450	26,28	cyclictest	0	-21	swapper/11	00:16:51	3
4063694	99	450	446,3	cyclictest	12524	-21	kworker/3:1+pm	22:06:05	9
4063726	99	449	0,30	cyclictest	0	-21	swapper/11	20:28:14	3
4063702	99	449	448,1	cyclictest	4087478	-21	kworker/u64:10+events_unbound	19:35:54	11
4063702	99	449	447,1	cyclictest	654	50	usb-storage	19:40:53	11
4063702	99	449	446,2	cyclictest	4167654	-21	kworker/u64:1+events_unbound	21:47:15	11
4063702	99	449	0,448	cyclictest	0	-21	swapper/5	22:21:53	11
4063739	99	448	4,30	cyclictest	0	-21	swapper/14	20:47:52	6
4063726	99	448	447,1	cyclictest	1818	-21	snmpd	19:12:28	3
4063702	99	448	445,2	cyclictest	4191787	-21	kworker/u64:13+events_unbound	22:56:52	11
4063744	99	447	1,30	cyclictest	0	-21	swapper/15	22:22:30	7
4063736	99	447	27,419	cyclictest	0	-21	swapper/13	00:08:13	5
4063726	99	447	0,30	cyclictest	0	-21	swapper/11	21:20:15	3
4063702	99	447	444,2	cyclictest	4112487	-21	kworker/u64:7+events_unbound	20:03:17	11
4063726	99	446	25,420	cyclictest	0	-21	swapper/11	23:43:51	3
4063686	99	446	0,29	cyclictest	0	-21	swapper/1	22:46:13	1
4063744	99	445	3,30	cyclictest	0	-21	swapper/15	20:32:31	7
4063736	99	445	24,420	cyclictest	0	-21	swapper/13	20:06:13	5
4063731	99	445	25,419	cyclictest	0	-21	swapper/12	23:35:16	4
4063731	99	445	25,419	cyclictest	0	-21	swapper/12	22:52:16	4
4063731	99	445	25,419	cyclictest	0	-21	swapper/12	21:48:13	4
4063731	99	445	24,420	cyclictest	0	-21	swapper/12	20:23:16	4
4063713	99	445	3,29	cyclictest	0	-21	swapper/8	20:17:12	14
4063713	99	445	1,29	cyclictest	0	-21	swapper/8	00:31:16	14
4063713	99	445	0,29	cyclictest	0	-21	swapper/8	20:29:16	14
4063708	99	445	444,1	cyclictest	0	-21	swapper/7	21:52:31	13
4063689	99	445	415,30	cyclictest	0	-21	swapper/2	20:06:31	8
4063731	99	444	23,420	cyclictest	0	-21	swapper/12	19:45:14	4
4063706	99	444	2,29	cyclictest	0	-21	swapper/6	00:26:30	12
4063689	99	444	442,1	cyclictest	11379	-21	kworker/2:5+i915-unordered	22:36:30	8
4063736	99	443	440,2	cyclictest	31255	-21	kworker/u64:16+events_unbound	22:21:53	5
4063736	99	443	24,416	cyclictest	0	-21	swapper/13	21:41:13	5
4063736	99	443	22,420	cyclictest	0	-21	swapper/13	00:04:15	5
4063736	99	443	22,420	cyclictest	0	-21	swapper/13	00:04:15	5
4063726	99	443	22,419	cyclictest	0	-21	swapper/11	00:09:12	3
4063706	99	443	1,29	cyclictest	0	-21	swapper/6	21:31:30	12
4063736	99	442	22,417	cyclictest	0	-21	swapper/13	22:09:53	5
4063731	99	442	22,419	cyclictest	0	-21	swapper/12	22:42:15	4
4063731	99	442	21,420	cyclictest	0	-21	swapper/12	23:28:14	4
4063716	99	442	441,1	cyclictest	0	-21	swapper/9	19:57:53	15
4063708	99	442	438,4	cyclictest	1818	-21	snmpd	19:58:05	13
4063744	99	441	440,1	cyclictest	35536	-21	kworker/15:2+i915-unordered	22:32:30	7
4063736	99	441	438,2	cyclictest	4067353	-21	kworker/u64:3+events_unbound	19:40:53	5
4063731	99	441	22,418	cyclictest	0	-21	swapper/12	21:17:14	4
4063731	99	441	22,418	cyclictest	0	-21	swapper/12	21:17:14	4
4063713	99	441	441,0	cyclictest	0	-21	swapper/8	22:53:53	14
4063736	99	440	0,439	cyclictest	0	-21	swapper/13	22:14:54	5
4063713	99	440	439,1	cyclictest	697	50	irq/159-i915	19:53:31	14
4063708	99	440	23,416	cyclictest	87	1	ktimers/7	22:44:25	13
4063697	99	440	25,414	cyclictest	0	-21	swapper/4	23:00:30	10
4063744	99	439	439,0	cyclictest	0	-21	swapper/15	00:01:30	7
4063744	99	439	439,0	cyclictest	0	-21	swapper/15	00:01:30	7
4063736	99	439	439,0	cyclictest	0	-21	swapper/13	19:35:54	5
4063736	99	439	0,438	cyclictest	0	-21	swapper/13	19:45:14	5
4063731	99	439	17,417	cyclictest	0	-21	swapper/12	20:04:52	4
4063721	99	439	439,0	cyclictest	0	-21	swapper/10	21:10:31	2
4063721	99	439	439,0	cyclictest	0	-21	swapper/10	21:10:31	2
4063716	99	439	439,0	cyclictest	0	-21	swapper/9	21:13:17	15
4063716	99	439	439,0	cyclictest	0	-21	swapper/9	21:13:17	15
4063697	99	439	24,415	cyclictest	0	-21	swapper/4	23:25:30	10
4063736	99	438	437,1	cyclictest	0	-21	swapper/13	21:47:15	5
4063697	99	438	17,420	cyclictest	0	-21	swapper/4	19:19:16	10
4063689	99	438	23,414	cyclictest	0	-21	swapper/2	22:06:30	8
4063736	99	437	436,0	cyclictest	0	-21	swapper/13	22:56:52	5
4063697	99	437	16,420	cyclictest	0	-21	swapper/4	22:29:15	10
4063694	99	437	23,414	cyclictest	0	-21	swapper/3	22:12:30	9
4063736	99	436	435,1	cyclictest	0	-21	swapper/13	20:03:17	5
4063706	99	436	436,0	cyclictest	0	-21	swapper/6	19:21:31	12
4063694	99	436	15,420	cyclictest	0	-21	swapper/3	21:29:26	9
4063702	99	435	433,2	cyclictest	0	-21	swapper/5	20:43:31	11
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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