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 Fri Mar 06, 2026 00:43:46)
Delayed (victim)					Switcher (culprit)			Timestamp	CPU
PID	Prio	Total latency (µs)	T^(,W^*) latency (µs)	Cmd	PID	Prio	Cmd	Timestamp	CPU
252045	99	558	14,45	cyclictest	0	-21	swapper/15	23:26:09	7
252023	99	551	30,520	cyclictest	0	-21	swapper/10	00:13:09	2
252041	99	530	29,500	cyclictest	0	-21	swapper/14	22:58:09	6
252041	99	530	29,500	cyclictest	0	-21	swapper/14	22:58:09	6
252028	99	504	19,484	cyclictest	124	-21	ksoftirqd/11	21:45:09	3
252037	99	503	2,500	cyclictest	0	-21	swapper/13	20:15:09	5
252045	99	497	497,0	cyclictest	369396	-21	kworker/15:0+i915-unordered	21:45:09	7
252028	99	489	7,481	cyclictest	124	-21	ksoftirqd/11	20:51:09	3
252028	99	487	65,0	cyclictest	260776	-21	kworker/11:0+i915-unordered	19:20:09	3
252006	99	474	472,2	cyclictest	365517	-21	kworker/6:1+i915-unordered	21:42:09	12
252010	99	470	468,2	cyclictest	457748	-21	kworker/7:2+i915-unordered	23:40:09	13
252028	99	469	103,361	cyclictest	498181	-21	kworker/11:0+i915-unordered	00:26:09	3
252028	99	463	462,1	cyclictest	0	-21	swapper/11	00:13:09	3
252010	99	463	461,2	cyclictest	340978	-21	kworker/7:2+i915-unordered	20:55:09	13
252010	99	462	461,1	cyclictest	340978	-21	kworker/7:2+i915-unordered	21:31:09	13
252028	99	458	12,30	cyclictest	0	-21	swapper/11	20:44:31	3
252010	99	457	5,58	cyclictest	0	-21	swapper/7	21:35:09	13
252037	99	455	453,2	cyclictest	497972	-21	kworker/13:1+i915-unordered	00:31:09	5
252028	99	453	5,30	cyclictest	0	-21	swapper/11	22:04:31	3
251987	99	452	0,26	cyclictest	0	-21	swapper/1	00:21:53	1
252010	99	451	446,3	cyclictest	434518	-21	kworker/7:0+i915-unordered	23:26:09	13
252028	99	450	24,29	cyclictest	0	-21	swapper/11	23:31:53	3
252028	99	450	24,29	cyclictest	0	-21	swapper/11	00:33:51	3
251991	99	449	448,1	cyclictest	349080	-21	kworker/2:1+i915-unordered	21:08:09	8
252028	99	448	23,28	cyclictest	0	-21	swapper/11	22:20:54	3
252028	99	448	22,424	cyclictest	0	-21	swapper/11	23:19:53	3
252028	99	447	22,28	cyclictest	0	-21	swapper/11	22:16:53	3
252037	99	445	22,422	cyclictest	0	-21	swapper/13	19:58:09	5
252028	99	445	20,29	cyclictest	0	-21	swapper/11	22:03:31	3
252028	99	445	19,30	cyclictest	0	-21	swapper/11	19:37:31	3
252037	99	441	21,30	cyclictest	0	-21	swapper/13	23:01:09	5
252037	99	441	0,4	cyclictest	0	-21	swapper/13	20:08:53	5
252037	99	441	0,4	cyclictest	0	-21	swapper/13	20:08:53	5
252028	99	441	13,427	cyclictest	0	-21	swapper/11	21:43:09	3
252041	99	440	14,29	cyclictest	0	-21	swapper/14	22:19:04	6
252006	99	440	21,29	cyclictest	0	-21	swapper/6	21:25:09	12
252037	99	439	17,30	cyclictest	0	-21	swapper/13	23:35:09	5
252006	99	439	20,29	cyclictest	0	-21	swapper/6	23:43:09	12
251995	99	437	20,416	cyclictest	0	-21	swapper/3	00:23:09	9
252010	99	436	13,29	cyclictest	0	-21	swapper/7	21:51:09	13
251991	99	436	21,414	cyclictest	0	-21	swapper/2	21:00:09	8
252010	99	435	14,29	cyclictest	0	-21	swapper/7	21:01:09	13
252006	99	434	433,1	cyclictest	0	-21	swapper/6	19:13:09	12
252028	99	433	5,30	cyclictest	0	-21	swapper/11	19:27:31	3
252023	99	433	40,0	cyclictest	0	-21	swapper/10	20:22:55	2
252006	99	433	13,30	cyclictest	0	-21	swapper/6	21:58:09	12
252023	99	432	7,29	cyclictest	0	-21	swapper/10	23:43:54	2
252004	99	432	12,420	cyclictest	0	-21	swapper/5	00:13:52	11
252037	99	431	431,0	cyclictest	0	-21	swapper/13	22:43:53	5
251995	99	431	430,1	cyclictest	697	50	irq/159-i915	19:35:09	9
252037	99	430	10,29	cyclictest	0	-21	swapper/13	22:56:09	5
252037	99	430	10,29	cyclictest	0	-21	swapper/13	22:56:09	5
252006	99	429	10,30	cyclictest	0	-21	swapper/6	20:50:09	12
252018	99	428	12,415	cyclictest	0	-21	swapper/9	00:20:09	15
252023	99	427	3,30	cyclictest	0	-21	swapper/10	21:59:56	2
252004	99	427	9,417	cyclictest	0	-21	swapper/5	22:50:32	11
252004	99	427	9,417	cyclictest	0	-21	swapper/5	22:50:32	11
252010	99	426	4,30	cyclictest	0	-21	swapper/7	23:57:09	13
251987	99	426	0,30	cyclictest	0	-21	swapper/1	22:33:32	1
252028	99	425	0,29	cyclictest	0	-21	swapper/11	22:59:53	3
252041	99	424	0,30	cyclictest	0	-21	swapper/14	21:48:33	6
252041	99	424	0,29	cyclictest	0	-21	swapper/14	19:42:31	6
252010	99	424	5,29	cyclictest	0	-21	swapper/7	20:30:09	13
252006	99	424	422,1	cyclictest	417562	-21	kworker/6:0+i915-unordered	22:58:09	12
252006	99	424	422,1	cyclictest	417562	-21	kworker/6:0+i915-unordered	22:58:09	12
252045	99	423	6,415	cyclictest	0	-21	swapper/15	21:29:31	7
252037	99	423	420,2	cyclictest	397384	-21	kworker/u64:6+events_unbound	22:16:53	5
252033	99	423	0,422	cyclictest	0	-21	swapper/12	00:34:33	4
252028	99	423	25,396	cyclictest	0	-21	swapper/11	21:01:55	3
252028	99	423	25,395	cyclictest	0	-21	swapper/11	19:16:31	3
252006	99	423	421,1	cyclictest	227351	-21	kworker/u64:3+events_unbound	19:22:09	12
252004	99	423	0,0	cyclictest	0	-21	swapper/5	20:48:09	11
252028	99	422	23,0	cyclictest	0	-21	swapper/11	19:11:54	3
252033	99	421	0,0	cyclictest	0	-21	swapper/12	20:21:55	4
252028	99	421	22,0	cyclictest	0	-21	swapper/11	22:45:32	3
252010	99	421	22,398	cyclictest	0	-21	swapper/7	22:06:53	13
252006	99	421	0,30	cyclictest	0	-21	swapper/6	21:32:09	12
252004	99	421	8,392	cyclictest	0	-21	swapper/5	23:53:56	11
252028	99	420	21,396	cyclictest	0	-21	swapper/11	19:33:31	3
252045	99	419	21,397	cyclictest	0	-21	swapper/15	23:42:53	7
252028	99	419	24,393	cyclictest	0	-21	swapper/11	22:10:32	3
252028	99	419	22,395	cyclictest	0	-21	swapper/11	20:55:54	3
252028	99	419	21,396	cyclictest	0	-21	swapper/11	21:33:55	3
252023	99	419	419,0	cyclictest	0	-21	swapper/10	00:36:09	2
252023	99	419	389,30	cyclictest	0	-21	swapper/10	21:08:09	2
252045	99	418	22,392	cyclictest	0	-21	swapper/15	20:44:05	7
252045	99	418	21,396	cyclictest	0	-21	swapper/15	20:55:32	7
252045	99	418	20,397	cyclictest	0	-21	swapper/15	20:26:53	7
252014	99	418	23,394	cyclictest	0	-21	swapper/8	20:24:33	14
251995	99	418	0,0	cyclictest	0	-21	swapper/3	00:31:09	9
252045	99	417	20,396	cyclictest	0	-21	swapper/15	22:46:54	7
252045	99	417	19,397	cyclictest	0	-21	swapper/15	00:18:52	7
251995	99	417	2,414	cyclictest	0	-21	swapper/3	22:13:09	9
251995	99	417	23,393	cyclictest	0	-21	swapper/3	00:26:09	9
252045	99	416	20,395	cyclictest	0	-21	swapper/15	22:41:55	7
252045	99	416	20,395	cyclictest	0	-21	swapper/15	22:32:55	7
252045	99	416	19,396	cyclictest	0	-21	swapper/15	22:15:32	7
252045	99	416	18,397	cyclictest	0	-21	swapper/15	21:05:54	7
252045	99	416	18,397	cyclictest	0	-21	swapper/15	20:45:54	7
252045	99	416	17,398	cyclictest	0	-21	swapper/15	20:16:32	7
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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