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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 Sep 06, 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
3644966	99	749	329,419	cyclictest	0	-21	swapper/1	20:16:20	1
3644966	99	747	328,418	cyclictest	0	-21	swapper/1	20:41:23	1
3644970	99	568	17,29	cyclictest	0	-21	swapper/2	21:45:38	8
3644978	99	502	499,2	cyclictest	3775197	-21	kworker/4:0+i915-unordered	21:46:38	10
3645016	99	495	494,1	cyclictest	3770290	-21	kworker/13:0+i915-unordered	21:55:38	5
3644997	99	485	484,1	cyclictest	0	-21	swapper/9	23:00:38	15
3644997	99	483	482,1	cyclictest	0	-21	swapper/9	21:03:38	15
3644966	99	482	481,1	cyclictest	3662586	-21	kworker/1:0+i915-unordered	19:26:38	1
3644966	99	482	481,1	cyclictest	3662586	-21	kworker/1:0+i915-unordered	19:26:38	1
3645000	99	477	476,1	cyclictest	3770245	-21	kworker/10:0+i915-unordered	21:45:38	2
3645000	99	475	474,1	cyclictest	0	-21	swapper/10	21:06:38	2
3645016	99	473	473,0	cyclictest	0	-21	swapper/13	23:35:38	5
3644983	99	473	23,30	cyclictest	0	-21	swapper/5	21:24:24	11
3644978	99	471	471,0	cyclictest	3742040	-21	kworker/4:1+i915-unordered	22:01:38	10
3644983	99	470	22,30	cyclictest	0	-21	swapper/5	20:22:59	11
3644964	99	470	22,29	cyclictest	0	-21	swapper/0	21:02:01	0
3644978	99	467	466,1	cyclictest	3742040	-21	kworker/4:1+i915-unordered	23:11:38	10
3644993	99	465	465,0	cyclictest	0	-21	swapper/8	22:32:38	14
3644993	99	462	0,461	cyclictest	0	-21	swapper/8	21:45:38	14
3645000	99	460	458,2	cyclictest	1818	-21	snmpd	19:53:35	2
3644993	99	460	458,2	cyclictest	0	-21	swapper/8	21:03:38	14
3644993	99	460	458,2	cyclictest	0	-21	swapper/8	00:22:38	14
3644993	99	460	1,459	cyclictest	0	-21	swapper/8	23:35:38	14
3645020	99	458	11,28	cyclictest	0	-21	swapper/14	21:57:00	6
3645000	99	458	457,1	cyclictest	1818	-21	snmpd	23:05:49	2
3644989	99	457	14,28	cyclictest	0	-21	swapper/7	19:48:38	13
3645012	99	456	13,30	cyclictest	0	-21	swapper/12	19:56:38	4
3644989	99	456	10,29	cyclictest	0	-21	swapper/7	19:34:34	13
3644989	99	456	10,29	cyclictest	0	-21	swapper/7	19:34:34	13
3644989	99	456	10,29	cyclictest	0	-21	swapper/7	19:13:38	13
3645025	99	455	425,30	cyclictest	0	-21	swapper/15	19:20:38	7
3645020	99	455	9,29	cyclictest	0	-21	swapper/14	20:51:00	6
3645025	99	453	452,1	cyclictest	3826673	-21	kworker/15:0+i915-unordered	22:53:38	7
3644993	99	452	451,1	cyclictest	0	-21	swapper/8	21:55:38	14
3644970	99	452	24,30	cyclictest	0	-21	swapper/2	19:10:01	8
3644970	99	451	0,29	cyclictest	0	-21	swapper/2	21:50:02	8
3644966	99	451	450,1	cyclictest	3818522	-21	kworker/1:2+i915-unordered	23:00:38	1
3644966	99	451	449,2	cyclictest	3738008	-21	kworker/1:0+i915-unordered	21:03:38	1
3644964	99	451	451,0	cyclictest	697	50	irq/159-i915	22:32:38	0
3645000	99	450	450,0	cyclictest	0	-21	swapper/10	22:32:38	2
3644985	99	450	448,2	cyclictest	3725960	-21	kworker/6:1+i915-unordered	20:50:38	12
3644966	99	450	12,29	cyclictest	0	-21	swapper/1	20:56:38	1
3644970	99	449	0,30	cyclictest	0	-21	swapper/2	20:07:00	8
3645012	99	448	448,0	cyclictest	0	-21	swapper/12	22:01:38	4
3645000	99	448	445,2	cyclictest	3858903	-21	kworker/10:1+i915-unordered	00:32:38	2
3644978	99	448	0,447	cyclictest	0	-21	swapper/4	23:17:49	10
3644964	99	448	447,1	cyclictest	697	50	irq/159-i915	21:45:38	0
3645020	99	447	447,0	cyclictest	3686012	-21	kworker/14:1+pm	20:20:51	6
3645012	99	447	445,2	cyclictest	0	-21	swapper/12	21:46:38	4
3644964	99	447	447,0	cyclictest	697	50	irq/159-i915	23:35:38	0
3644964	99	447	446,1	cyclictest	697	50	irq/159-i915	23:00:38	0
3644970	99	446	24,421	cyclictest	0	-21	swapper/2	20:57:22	8
3644993	99	445	444,0	cyclictest	0	-21	swapper/8	23:39:59	14
3644978	99	445	442,2	cyclictest	3878732	-21	kworker/4:0+events	00:14:00	10
3644978	99	445	442,2	cyclictest	3878732	-21	kworker/4:0+events	00:03:20	10
3644978	99	445	442,2	cyclictest	3742040	-21	kworker/4:1+events	22:49:24	10
3644964	99	445	444,1	cyclictest	697	50	irq/159-i915	00:22:38	0
3644970	99	444	24,418	cyclictest	0	-21	swapper/2	23:19:22	8
3644970	99	444	23,420	cyclictest	0	-21	swapper/2	21:12:21	8
3645000	99	443	442,1	cyclictest	0	-21	swapper/10	19:47:38	2
3644970	99	443	23,418	cyclictest	0	-21	swapper/2	19:45:24	8
3645012	99	442	442,0	cyclictest	0	-21	swapper/12	23:11:38	4
3644970	99	442	18,420	cyclictest	0	-21	swapper/2	21:17:01	8
3644964	99	442	22,419	cyclictest	0	-21	swapper/0	21:37:22	0
3645025	99	441	440,1	cyclictest	1818	-21	snmpd	21:06:10	7
3645025	99	441	439,2	cyclictest	3802563	-21	kworker/15:2+i915-unordered	22:23:38	7
3645000	99	441	440,1	cyclictest	3709006	-21	kworker/u64:11+events_unbound	20:46:01	2
3644970	99	441	18,419	cyclictest	0	-21	swapper/2	21:25:59	8
3645000	99	440	437,2	cyclictest	3770231	-21	kworker/u64:7+events_unbound	23:17:38	2
3645000	99	440	24,415	cyclictest	0	-21	swapper/10	19:58:38	2
3644978	99	440	437,2	cyclictest	3742040	-21	kworker/4:1+events	21:39:01	10
3645025	99	439	438,1	cyclictest	0	-21	swapper/15	19:52:38	7
3645000	99	439	24,414	cyclictest	0	-21	swapper/10	20:01:38	2
3644993	99	439	436,2	cyclictest	3709004	-21	kworker/u64:9+events_unbound	20:55:38	14
3644989	99	439	22,416	cyclictest	0	-21	swapper/7	19:51:01	13
3644970	99	439	19,418	cyclictest	0	-21	swapper/2	20:31:59	8
3644970	99	439	19,418	cyclictest	0	-21	swapper/2	20:01:00	8
3644970	99	439	18,418	cyclictest	0	-21	swapper/2	23:03:59	8
3644970	99	439	17,420	cyclictest	0	-21	swapper/2	23:09:20	8
3644964	99	439	438,1	cyclictest	697	50	irq/159-i915	21:55:38	0
3645020	99	438	20,416	cyclictest	0	-21	swapper/14	23:21:59	6
3644978	99	438	435,2	cyclictest	3697985	-21	kworker/4:2+events	20:14:01	10
3644978	99	438	23,414	cyclictest	0	-21	swapper/4	00:26:38	10
3644970	99	438	18,419	cyclictest	0	-21	swapper/2	22:41:22	8
3644970	99	438	18,418	cyclictest	0	-21	swapper/2	19:44:00	8
3644970	99	438	18,0	cyclictest	0	-21	swapper/2	21:24:02	8
3645025	99	437	437,0	cyclictest	265	50	irq/134-xhci_hcd	21:15:38	7
3644985	99	437	435,2	cyclictest	3786383	-21	kworker/6:2+i915-unordered	22:10:38	12
3644985	99	437	435,2	cyclictest	3786383	-21	kworker/6:2+i915-unordered	22:10:38	12
3644978	99	437	434,2	cyclictest	3722195	-21	kworker/4:1+events	20:46:01	10
3644970	99	437	17,418	cyclictest	0	-21	swapper/2	22:21:21	8
3644970	99	437	17,418	cyclictest	0	-21	swapper/2	22:01:22	8
3644970	99	437	17,418	cyclictest	0	-21	swapper/2	20:39:19	8
3644970	99	437	17,418	cyclictest	0	-21	swapper/2	19:30:59	8
3644970	99	437	17,418	cyclictest	0	-21	swapper/2	19:30:59	8
3644970	99	437	17,418	cyclictest	0	-21	swapper/2	00:23:21	8
3644970	99	437	16,419	cyclictest	0	-21	swapper/2	20:13:00	8
3645025	99	436	22,413	cyclictest	0	-21	swapper/15	22:15:38	7
3645025	99	436	22,413	cyclictest	0	-21	swapper/15	22:15:38	7
3645020	99	436	433,2	cyclictest	3758148	-21	kworker/u64:5+events_unbound	21:54:21	6
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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