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 Mon Mar 23, 2026 00:43:49)
Delayed (victim)					Switcher (culprit)			Timestamp	CPU
PID	Prio	Total latency (µs)	T^(,W^*) latency (µs)	Cmd	PID	Prio	Cmd	Timestamp	CPU
4026644	99	509	85,423	cyclictest	59057	-21	kworker/11:1+i915-unordered	23:53:50	3
4026626	99	502	501,1	cyclictest	35111	-21	kworker/7:0+i915-unordered	23:25:50	13
4026644	99	492	490,1	cyclictest	4172231	-21	kworker/11:2+i915-unordered	22:50:50	3
4026644	99	492	490,1	cyclictest	4039272	-21	kworker/11:1+i915-unordered	19:48:50	3
4026644	99	489	488,1	cyclictest	4095646	-21	kworker/11:1+i915-unordered	20:33:50	3
4026644	99	485	484,1	cyclictest	4172231	-21	kworker/11:2+i915-unordered	22:11:50	3
4026644	99	484	482,2	cyclictest	4059570	-21	kworker/11:2+i915-unordered	20:35:50	3
4026644	99	475	473,2	cyclictest	4059570	-21	kworker/11:2+i915-unordered	19:55:50	3
4026644	99	474	473,1	cyclictest	4156151	-21	kworker/11:2+i915-unordered	21:47:50	3
4026662	99	468	411,29	cyclictest	0	-21	swapper/15	21:18:50	7
4026626	99	468	467,1	cyclictest	4164178	-21	kworker/7:0+i915-unordered	22:31:50	13
4026644	99	465	16,448	cyclictest	0	-21	swapper/11	23:58:50	3
4026626	99	464	463,1	cyclictest	4132103	-21	kworker/7:1+i915-unordered	21:18:50	13
4026644	99	461	24,437	cyclictest	0	-21	swapper/11	22:31:50	3
4026644	99	459	19,439	cyclictest	0	-21	swapper/11	20:28:50	3
4026607	99	459	14,30	cyclictest	0	-21	swapper/2	23:26:34	8
4026662	99	458	14,443	cyclictest	0	-21	swapper/15	23:06:50	7
4026626	99	454	454,0	cyclictest	0	-21	swapper/7	20:06:50	13
4026626	99	452	451,1	cyclictest	55216	-21	kworker/7:0+i915-unordered	23:58:50	13
4026605	99	451	28,30	cyclictest	4118824	-21	ntpq	21:00:12	1
4026644	99	450	9,440	cyclictest	0	-21	swapper/11	20:47:50	3
4026612	99	450	448,1	cyclictest	697	50	irq/159-i915	19:48:50	9
4026653	99	449	23,28	cyclictest	0	-21	swapper/13	21:34:11	5
4026653	99	449	23,28	cyclictest	0	-21	swapper/13	21:34:11	5
4026662	99	446	4,29	cyclictest	0	-21	swapper/15	21:20:50	7
4026662	99	446	4,29	cyclictest	0	-21	swapper/15	21:20:50	7
4026607	99	444	16,30	cyclictest	0	-21	swapper/2	22:53:35	8
4026662	99	443	441,2	cyclictest	0	-21	swapper/15	20:28:50	7
4026662	99	442	23,28	cyclictest	0	-21	swapper/15	22:31:50	7
4026644	99	442	442,0	cyclictest	0	-21	swapper/11	19:11:50	3
4026662	99	441	440,1	cyclictest	0	-21	swapper/15	23:58:50	7
4026612	99	441	14,30	cyclictest	0	-21	swapper/3	20:15:12	9
4026644	99	440	19,30	cyclictest	0	-21	swapper/11	23:15:50	3
4026607	99	440	14,29	cyclictest	0	-21	swapper/2	20:12:13	8
4026626	99	438	438,0	cyclictest	0	-21	swapper/7	20:38:50	13
4026605	99	438	17,420	cyclictest	0	-21	swapper/1	23:00:11	1
4026607	99	437	12,30	cyclictest	0	-21	swapper/2	21:47:36	8
4026605	99	437	18,418	cyclictest	0	-21	swapper/1	21:11:11	1
4026605	99	437	17,419	cyclictest	0	-21	swapper/1	23:06:10	1
4026662	99	436	435,1	cyclictest	0	-21	swapper/15	23:25:50	7
4026644	99	436	18,28	cyclictest	0	-21	swapper/11	20:40:50	3
4026601	99	436	434,1	cyclictest	75206	-21	kworker/0:0+i915-unordered	00:10:35	0
4026601	99	436	434,1	cyclictest	75206	-21	kworker/0:0+i915-unordered	00:10:35	0
4026662	99	435	13,421	cyclictest	0	-21	swapper/15	20:55:50	7
4026607	99	435	12,29	cyclictest	0	-21	swapper/2	22:31:34	8
4026607	99	435	10,29	cyclictest	0	-21	swapper/2	21:05:34	8
4026662	99	434	9,30	cyclictest	0	-21	swapper/15	20:50:50	7
4026644	99	434	432,2	cyclictest	0	-21	swapper/11	19:28:50	3
4026624	99	434	431,2	cyclictest	4171082	-21	kworker/u64:2+events_unbound	22:28:50	12
4026607	99	434	12,30	cyclictest	0	-21	swapper/2	21:02:34	8
4026644	99	433	433,0	cyclictest	0	-21	swapper/11	22:01:50	3
4026612	99	432	10,30	cyclictest	0	-21	swapper/3	19:55:50	9
4026634	99	430	10,28	cyclictest	0	-21	swapper/9	21:46:50	15
4026657	99	429	428,1	cyclictest	0	-21	swapper/14	22:28:50	6
4026644	99	429	428,1	cyclictest	0	-21	swapper/11	21:18:50	3
4026631	99	429	7,29	cyclictest	0	-21	swapper/8	20:16:36	14
4026624	99	429	0,428	cyclictest	4091645	-21	kworker/6:0+i915-unordered	20:48:50	12
4026605	99	428	5,28	cyclictest	0	-21	swapper/1	00:36:32	1
4026649	99	427	424,2	cyclictest	33820	-21	kworker/u64:2+events_unbound	23:17:50	4
4026631	99	427	7,28	cyclictest	0	-21	swapper/8	00:17:13	14
4026631	99	427	7,28	cyclictest	0	-21	swapper/8	00:17:13	14
4026631	99	427	3,30	cyclictest	0	-21	swapper/8	19:18:36	14
4026612	99	427	426,1	cyclictest	697	50	irq/159-i915	22:50:50	9
4026605	99	427	6,27	cyclictest	0	-21	swapper/1	19:24:34	1
4026649	99	426	424,1	cyclictest	4047305	-21	kworker/u64:1+events_unbound	19:52:50	4
4026657	99	425	424,1	cyclictest	654	50	usb-storage	20:48:50	6
4026612	99	425	424,1	cyclictest	697	50	irq/159-i915	20:33:50	9
4026612	99	425	26,398	cyclictest	0	-21	swapper/3	19:53:12	9
4026612	99	425	26,397	cyclictest	0	-21	swapper/3	23:57:13	9
4026612	99	424	26,396	cyclictest	0	-21	swapper/3	21:32:12	9
4026612	99	424	26,396	cyclictest	0	-21	swapper/3	21:32:12	9
4026612	99	424	22,401	cyclictest	0	-21	swapper/3	23:54:10	9
4026612	99	424	0,30	cyclictest	0	-21	swapper/3	21:22:35	9
4026612	99	424	0,30	cyclictest	0	-21	swapper/3	21:22:35	9
4026605	99	424	25,398	cyclictest	0	-21	swapper/1	22:01:11	1
4026634	99	423	23,399	cyclictest	0	-21	swapper/9	23:09:45	15
4026612	99	423	23,397	cyclictest	0	-21	swapper/3	19:21:33	9
4026662	99	422	1,30	cyclictest	0	-21	swapper/15	00:36:49	7
4026649	99	422	23,398	cyclictest	0	-21	swapper/12	23:21:13	4
4026612	99	422	24,397	cyclictest	0	-21	swapper/3	22:12:11	9
4026612	99	422	24,396	cyclictest	0	-21	swapper/3	21:48:11	9
4026612	99	422	24,396	cyclictest	0	-21	swapper/3	20:36:11	9
4026612	99	422	23,398	cyclictest	0	-21	swapper/3	23:40:33	9
4026612	99	422	21,398	cyclictest	0	-21	swapper/3	20:47:34	9
4026605	99	422	23,398	cyclictest	0	-21	swapper/1	00:09:12	1
4026605	99	422	23,398	cyclictest	0	-21	swapper/1	00:09:12	1
4026631	99	421	421,0	cyclictest	0	-21	swapper/8	20:42:50	14
4026612	99	421	23,396	cyclictest	0	-21	swapper/3	23:48:34	9
4026612	99	421	23,396	cyclictest	0	-21	swapper/3	23:38:34	9
4026612	99	421	22,398	cyclictest	0	-21	swapper/3	23:24:11	9
4026612	99	421	22,396	cyclictest	0	-21	swapper/3	21:39:32	9
4026605	99	421	22,398	cyclictest	0	-21	swapper/1	22:07:11	1
4026605	99	421	0,417	cyclictest	0	-21	swapper/1	23:55:13	1
4026612	99	420	22,397	cyclictest	0	-21	swapper/3	19:28:13	9
4026612	99	420	21,397	cyclictest	0	-21	swapper/3	21:57:33	9
4026612	99	420	20,397	cyclictest	0	-21	swapper/3	20:09:34	9
4026662	99	419	419,0	cyclictest	4070215	-21	kworker/15:2+i915-unordered	20:06:50	7
4026634	99	419	22,396	cyclictest	0	-21	swapper/9	20:42:50	15
4026612	99	419	22,395	cyclictest	0	-21	swapper/3	21:10:33	9
4026612	99	419	21,396	cyclictest	0	-21	swapper/3	19:16:12	9
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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