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 Wed Apr 08, 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
117350	99	549	548,1	cyclictest	206373	-21	kworker/4:2+i915-unordered	21:01:21	10
117394	99	528	526,1	cyclictest	311081	-21	kworker/15:1+i915-unordered	23:07:21	7
117357	99	524	522,1	cyclictest	372361	-21	kworker/6:1+i915-unordered	00:32:21	12
117357	99	524	522,1	cyclictest	372361	-21	kworker/6:1+i915-unordered	00:32:21	12
117342	99	523	522,1	cyclictest	0	-21	swapper/2	21:58:21	8
117342	99	523	522,1	cyclictest	0	-21	swapper/2	21:58:21	8
117391	99	522	20,501	cyclictest	0	-21	swapper/14	00:38:21	6
117391	99	522	20,501	cyclictest	0	-21	swapper/14	00:38:21	6
117371	99	517	515,1	cyclictest	250887	-21	kworker/10:0+i915-unordered	21:58:21	2
117371	99	517	515,1	cyclictest	250887	-21	kworker/10:0+i915-unordered	21:58:21	2
117371	99	489	487,2	cyclictest	234591	-21	kworker/10:1+i915-unordered	21:52:21	2
117371	99	489	487,2	cyclictest	234591	-21	kworker/10:1+i915-unordered	21:52:21	2
117394	99	485	455,30	cyclictest	0	-21	swapper/15	21:46:21	7
117391	99	481	481,0	cyclictest	186512	-21	kworker/14:0+i915-unordered	20:40:21	6
117369	99	475	474,1	cyclictest	194343	-21	kworker/9:0+i915-unordered	20:42:21	15
117383	99	472	470,2	cyclictest	150149	-21	kworker/12:2+i915-unordered	00:30:21	4
117383	99	472	470,2	cyclictest	150149	-21	kworker/12:2+i915-unordered	00:30:21	4
117357	99	470	468,2	cyclictest	383534	-21	kworker/6:0+i915-unordered	00:38:21	12
117357	99	470	468,2	cyclictest	383534	-21	kworker/6:0+i915-unordered	00:38:21	12
117347	99	466	19,29	cyclictest	0	-21	swapper/3	20:54:44	9
117361	99	464	9,58	cyclictest	0	-21	swapper/7	20:23:44	13
117383	99	463	461,2	cyclictest	0	-21	swapper/12	22:48:21	4
117394	99	462	461,1	cyclictest	0	-21	swapper/15	22:45:21	7
117347	99	462	14,29	cyclictest	0	-21	swapper/3	20:19:06	9
117361	99	458	11,29	cyclictest	0	-21	swapper/7	22:28:44	13
117355	99	456	9,29	cyclictest	0	-21	swapper/5	19:55:43	11
117355	99	456	7,30	cyclictest	0	-21	swapper/5	19:46:05	11
117357	99	453	15,30	cyclictest	0	-21	swapper/6	20:40:21	12
117394	99	452	8,30	cyclictest	0	-21	swapper/15	21:10:21	7
117355	99	451	21,30	cyclictest	0	-21	swapper/5	00:29:44	11
117355	99	451	21,30	cyclictest	0	-21	swapper/5	00:29:44	11
117355	99	448	0,30	cyclictest	0	-21	swapper/5	20:45:43	11
117394	99	445	442,2	cyclictest	150295	-21	kworker/15:2+i915-unordered	19:59:43	7
117361	99	443	16,28	cyclictest	0	-21	swapper/7	22:01:07	13
117355	99	443	17,29	cyclictest	0	-21	swapper/5	23:39:42	11
117361	99	442	19,30	cyclictest	0	-21	swapper/7	23:22:07	13
117361	99	441	19,30	cyclictest	0	-21	swapper/7	23:45:43	13
117350	99	441	22,419	cyclictest	0	-21	swapper/4	22:04:44	10
117394	99	440	22,28	cyclictest	0	-21	swapper/15	23:11:21	7
117383	99	440	18,30	cyclictest	0	-21	swapper/12	22:50:21	4
117361	99	440	17,30	cyclictest	0	-21	swapper/7	21:19:16	13
117347	99	440	15,29	cyclictest	0	-21	swapper/3	00:05:43	9
117383	99	439	438,1	cyclictest	0	-21	swapper/12	22:35:21	4
117383	99	439	438,1	cyclictest	0	-21	swapper/12	21:01:21	4
117371	99	439	0,0	cyclictest	0	-21	swapper/10	20:25:21	2
117369	99	439	437,2	cyclictest	315225	-21	kworker/9:2+i915-unordered	23:23:21	15
117347	99	439	17,419	cyclictest	0	-21	swapper/3	21:15:05	9
117347	99	439	12,30	cyclictest	0	-21	swapper/3	23:06:06	9
117347	99	439	11,29	cyclictest	0	-21	swapper/3	20:36:04	9
117391	99	438	18,419	cyclictest	0	-21	swapper/14	00:06:42	6
117388	99	438	0,438	cyclictest	0	-21	swapper/13	22:47:21	5
117361	99	438	14,30	cyclictest	0	-21	swapper/7	23:07:43	13
117361	99	438	11,29	cyclictest	0	-21	swapper/7	21:08:42	13
117347	99	438	12,29	cyclictest	0	-21	swapper/3	00:20:03	9
117347	99	437	19,416	cyclictest	0	-21	swapper/3	20:13:05	9
117347	99	437	12,29	cyclictest	0	-21	swapper/3	00:04:06	9
117391	99	436	15,420	cyclictest	0	-21	swapper/14	00:10:43	6
117388	99	436	434,2	cyclictest	154272	-21	kworker/13:1+i915-unordered	19:55:21	5
117355	99	436	9,30	cyclictest	0	-21	swapper/5	19:19:04	11
117347	99	436	9,29	cyclictest	0	-21	swapper/3	19:44:04	9
117347	99	436	11,28	cyclictest	0	-21	swapper/3	23:31:04	9
117391	99	435	14,420	cyclictest	0	-21	swapper/14	20:58:43	6
117361	99	434	431,2	cyclictest	222488	-21	kworker/u64:6+events_unbound	21:33:21	13
117355	99	434	9,30	cyclictest	0	-21	swapper/5	20:56:05	11
117355	99	434	9,29	cyclictest	0	-21	swapper/5	20:06:43	11
117355	99	434	9,28	cyclictest	0	-21	swapper/5	22:14:05	11
117355	99	434	9,28	cyclictest	0	-21	swapper/5	21:30:06	11
117347	99	434	10,28	cyclictest	0	-21	swapper/3	20:07:42	9
117338	99	434	8,29	cyclictest	0	-21	swapper/1	21:36:44	1
117338	99	434	7,29	cyclictest	0	-21	swapper/1	21:21:44	1
117394	99	433	12,29	cyclictest	0	-21	swapper/15	19:27:21	7
117357	99	433	432,1	cyclictest	1818	-21	snmpd	19:36:18	12
117355	99	433	7,424	cyclictest	0	-21	swapper/5	23:03:05	11
117355	99	433	6,30	cyclictest	0	-21	swapper/5	21:50:42	11
117355	99	433	6,30	cyclictest	0	-21	swapper/5	21:50:42	11
117355	99	433	13,417	cyclictest	0	-21	swapper/5	19:53:05	11
117350	99	433	429,3	cyclictest	1818	-21	snmpd	21:20:33	10
117355	99	432	7,29	cyclictest	0	-21	swapper/5	19:23:04	11
117350	99	432	13,418	cyclictest	0	-21	swapper/4	19:37:06	10
117350	99	432	11,420	cyclictest	0	-21	swapper/4	20:18:43	10
117338	99	432	6,30	cyclictest	0	-21	swapper/1	19:59:05	1
117369	99	431	430,1	cyclictest	371482	-21	kworker/9:2+i915-unordered	00:23:21	15
117355	99	431	7,29	cyclictest	0	-21	swapper/5	22:52:42	11
117355	99	430	11,417	cyclictest	0	-21	swapper/5	20:12:05	11
117338	99	430	8,29	cyclictest	0	-21	swapper/1	20:37:43	1
117355	99	429	11,418	cyclictest	0	-21	swapper/5	20:30:05	11
117338	99	429	6,30	cyclictest	0	-21	swapper/1	21:00:06	1
117338	99	429	5,30	cyclictest	0	-21	swapper/1	23:18:03	1
117338	99	429	4,30	cyclictest	0	-21	swapper/1	23:59:05	1
117338	99	429	1,30	cyclictest	0	-21	swapper/1	23:12:42	1
117383	99	428	12,29	cyclictest	0	-21	swapper/12	20:57:21	4
117365	99	428	9,418	cyclictest	0	-21	swapper/8	21:23:06	14
117365	99	428	10,417	cyclictest	221762	-21	smartctl	21:14:42	14
117338	99	428	2,30	cyclictest	0	-21	swapper/1	00:18:44	1
117336	99	428	427,1	cyclictest	108883	-21	kworker/0:0+i915-unordered	21:14:42	0
117383	99	427	15,411	cyclictest	0	-21	swapper/12	20:03:21	4
117338	99	427	1,29	cyclictest	0	-21	swapper/1	21:42:44	1
117379	99	426	13,412	cyclictest	0	-21	swapper/11	19:57:21	3
117350	99	426	5,419	cyclictest	0	-21	swapper/4	20:38:05	10
117338	99	426	2,30	cyclictest	0	-21	swapper/1	23:08:43	1
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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