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 Sun May 24, 2026 00:43:47)
Delayed (victim)					Switcher (culprit)			Timestamp	CPU
PID	Prio	Total latency (µs)	T^(,W^*) latency (µs)	Cmd	PID	Prio	Cmd	Timestamp	CPU
3638799	99	728	726,2	cyclictest	0	-21	swapper/4	21:25:39	10
3638840	99	549	100,444	cyclictest	3655497	-21	kworker/14:1+i915-unordered	19:29:57	6
3638845	99	542	21,519	cyclictest	0	-21	swapper/15	22:39:57	7
3638840	99	520	18,44	cyclictest	0	-21	swapper/14	22:20:57	6
3638811	99	515	514,1	cyclictest	3860721	-21	kworker/7:1+i915-unordered	23:55:56	13
3638811	99	515	513,2	cyclictest	3715797	-21	kworker/7:0+i915-unordered	20:54:57	13
3638811	99	512	8,503	cyclictest	0	-21	swapper/7	00:19:56	13
3638840	99	505	18,27	cyclictest	151	-21	ksoftirqd/14	22:58:57	6
3638787	99	503	501,2	cyclictest	34	-21	ksoftirqd/1	22:20:57	1
3638840	99	502	37,26	cyclictest	0	-21	swapper/14	19:16:57	6
3638787	99	502	502,0	cyclictest	0	-21	swapper/1	22:58:57	1
3638840	99	501	38,462	cyclictest	0	-21	swapper/14	23:38:56	6
3638811	99	498	496,2	cyclictest	3896833	-21	kworker/7:0+i915-unordered	00:26:56	13
3638845	99	497	20,58	cyclictest	0	-21	swapper/15	20:55:18	7
3638845	99	497	19,58	cyclictest	0	-21	swapper/15	00:27:17	7
3638840	99	494	32,461	cyclictest	0	-21	swapper/14	00:24:56	6
3638811	99	494	493,1	cyclictest	3796432	-21	kworker/7:1+i915-unordered	22:31:57	13
3638811	99	494	493,1	cyclictest	3796432	-21	kworker/7:1+i915-unordered	22:31:57	13
3638838	99	490	490,0	cyclictest	0	-21	swapper/13	20:08:57	5
3638840	99	488	42,30	cyclictest	151	-21	ksoftirqd/14	00:37:51	6
3638840	99	486	9,476	cyclictest	0	-21	swapper/14	00:00:56	6
3638840	99	484	7,476	cyclictest	0	-21	swapper/14	22:10:57	6
3638799	99	482	6,59	cyclictest	0	-21	swapper/4	23:18:39	10
3638840	99	481	5,0	cyclictest	0	-21	swapper/14	20:08:57	6
3638838	99	480	478,2	cyclictest	0	-21	swapper/13	23:38:56	5
3638840	99	478	2,475	cyclictest	0	-21	swapper/14	22:39:57	6
3638840	99	478	16,460	cyclictest	0	-21	swapper/14	20:54:57	6
3638840	99	478	0,477	cyclictest	0	-21	swapper/14	22:31:57	6
3638840	99	478	0,477	cyclictest	0	-21	swapper/14	22:31:57	6
3638792	99	478	477,1	cyclictest	0	-21	swapper/2	21:26:57	8
3638840	99	477	0,476	cyclictest	0	-21	swapper/14	20:45:57	6
3638811	99	477	477,0	cyclictest	3679539	-21	kworker/7:0+i915-unordered	20:31:57	13
3638787	99	477	476,1	cyclictest	0	-21	swapper/1	22:10:57	1
3638806	99	476	475,1	cyclictest	697	50	irq/159-i915	20:30:57	12
3638829	99	475	25,30	cyclictest	0	-21	swapper/11	21:36:18	3
3638811	99	472	471,1	cyclictest	3809233	-21	kworker/7:0+i915-unordered	22:39:57	13
3638845	99	471	21,30	cyclictest	0	-21	swapper/15	19:53:43	7
3638829	99	471	22,29	cyclictest	0	-21	swapper/11	20:05:20	3
3638811	99	469	22,29	cyclictest	0	-21	swapper/7	19:28:57	13
3638838	99	468	26,441	cyclictest	0	-21	swapper/13	21:50:56	5
3638829	99	468	23,30	cyclictest	0	-21	swapper/11	19:48:41	3
3638845	99	467	20,29	cyclictest	0	-21	swapper/15	21:03:42	7
3638829	99	467	23,29	cyclictest	0	-21	swapper/11	22:20:20	3
3638845	99	466	19,30	cyclictest	0	-21	swapper/15	23:17:19	7
3638845	99	466	18,30	cyclictest	0	-21	swapper/15	00:29:19	7
3638829	99	466	20,30	cyclictest	0	-21	swapper/11	22:39:19	3
3638838	99	465	24,30	cyclictest	0	-21	swapper/13	23:35:56	5
3638829	99	463	14,30	cyclictest	0	-21	swapper/11	22:16:17	3
3638829	99	462	13,30	cyclictest	0	-21	swapper/11	23:42:40	3
3638829	99	462	11,30	cyclictest	0	-21	swapper/11	23:52:39	3
3638803	99	462	461,1	cyclictest	0	-21	swapper/5	23:34:56	11
3638845	99	461	18,29	cyclictest	0	-21	swapper/15	23:53:40	7
3638829	99	461	12,30	cyclictest	0	-21	swapper/11	20:46:40	3
3638811	99	461	21,29	cyclictest	0	-21	swapper/7	20:37:52	13
3638817	99	459	12,29	cyclictest	0	-21	swapper/9	21:34:40	15
3638829	99	457	10,30	cyclictest	0	-21	swapper/11	21:30:19	3
3638825	99	457	456,1	cyclictest	0	-21	swapper/10	21:21:57	2
3638806	99	457	456,1	cyclictest	697	50	irq/159-i915	22:04:57	12
3638811	99	455	13,30	cyclictest	0	-21	swapper/7	00:02:51	13
3638838	99	450	7,30	cyclictest	0	-21	swapper/13	00:21:56	5
3638806	99	450	450,0	cyclictest	697	50	irq/159-i915	19:34:57	12
3638806	99	450	450,0	cyclictest	697	50	irq/159-i915	19:34:57	12
3638840	99	449	446,2	cyclictest	3678406	-21	kworker/u64:10+events_unbound	20:17:20	6
3638845	99	448	0,28	cyclictest	0	-21	swapper/15	21:54:41	7
3638806	99	448	447,1	cyclictest	697	50	irq/159-i915	00:19:56	12
3638806	99	448	447,1	cyclictest	0	-21	swapper/6	21:42:30	12
3638845	99	447	26,418	cyclictest	0	-21	swapper/15	23:41:42	7
3638845	99	447	25,419	cyclictest	0	-21	swapper/15	21:39:17	7
3638792	99	447	26,420	cyclictest	0	-21	swapper/2	22:53:19	8
3638845	99	446	25,418	cyclictest	0	-21	swapper/15	23:21:18	7
3638825	99	446	0,445	cyclictest	0	-21	swapper/10	00:22:40	2
3638806	99	446	445,1	cyclictest	697	50	irq/159-i915	20:24:57	12
3638840	99	445	25,417	cyclictest	0	-21	swapper/14	20:35:41	6
3638811	99	445	0,30	cyclictest	0	-21	swapper/7	19:51:57	13
3638806	99	445	0,29	cyclictest	0	-21	swapper/6	00:36:56	12
3638840	99	444	443,1	cyclictest	0	-21	swapper/14	00:09:20	6
3638840	99	444	442,1	cyclictest	3776241	-21	kworker/14:1+i915-unordered	22:00:57	6
3638825	99	444	23,420	cyclictest	0	-21	swapper/10	21:42:18	2
3638796	99	444	441,2	cyclictest	3860788	-21	kworker/3:2+events	00:01:41	9
3638840	99	443	24,418	cyclictest	0	-21	swapper/14	23:53:19	6
3638792	99	443	23,419	cyclictest	0	-21	swapper/2	21:48:19	8
3638840	99	442	21,420	cyclictest	0	-21	swapper/14	23:13:17	6
3638834	99	442	439,2	cyclictest	3836410	-21	kworker/u64:6+events_unbound	00:01:41	4
3638834	99	442	26,415	cyclictest	0	-21	swapper/12	21:40:56	4
3638829	99	442	24,417	cyclictest	0	-21	swapper/11	23:34:41	3
3638829	99	442	22,417	cyclictest	0	-21	swapper/11	23:26:18	3
3638787	99	442	0,29	cyclictest	0	-21	swapper/1	00:15:56	1
3638845	99	441	19,421	cyclictest	0	-21	swapper/15	00:19:40	7
3638840	99	441	438,2	cyclictest	3731102	-21	kworker/u64:13+events_unbound	21:00:18	6
3638840	99	441	19,419	cyclictest	0	-21	swapper/14	21:18:19	6
3638838	99	441	1,30	cyclictest	0	-21	swapper/13	23:10:56	5
3638806	99	441	441,0	cyclictest	697	50	irq/159-i915	19:30:57	12
3638806	99	441	25,416	cyclictest	0	-21	swapper/6	20:48:57	12
3638840	99	440	440,0	cyclictest	0	-21	swapper/14	19:27:42	6
3638840	99	440	18,419	cyclictest	0	-21	swapper/14	19:53:20	6
3638838	99	440	0,30	cyclictest	0	-21	swapper/13	23:30:56	5
3638811	99	440	24,416	cyclictest	0	-21	swapper/7	21:51:56	13
3638806	99	440	24,415	cyclictest	0	-21	swapper/6	19:24:57	12
3638796	99	440	439,1	cyclictest	0	-21	swapper/3	21:42:30	9
3638792	99	440	21,418	cyclictest	0	-21	swapper/2	00:03:18	8
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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