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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 22, 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
322162	99	604	287,316	cyclictest	0	-21	swapper/14	23:44:16	6
322110	99	504	22,28	cyclictest	0	-21	swapper/2	20:12:56	8
322107	99	503	3,499	cyclictest	0	-21	swapper/1	19:29:56	1
322110	99	493	11,42	cyclictest	0	-21	swapper/2	19:30:56	8
322149	99	489	488,1	cyclictest	0	-21	swapper/11	22:44:55	3
322110	99	488	4,483	cyclictest	43	-21	ksoftirqd/2	22:31:55	8
322145	99	486	456,30	cyclictest	0	-21	swapper/10	00:12:55	2
322122	99	482	452,30	cyclictest	0	-21	swapper/5	21:57:55	11
322110	99	475	20,454	cyclictest	0	-21	swapper/2	21:57:55	8
322110	99	468	13,454	cyclictest	0	-21	swapper/2	19:57:56	8
322162	99	463	461,2	cyclictest	354852	-21	kworker/14:2+i915-unordered	19:57:56	6
322114	99	458	456,2	cyclictest	548236	-21	kworker/3:2+i915-unordered	00:31:55	9
322162	99	456	454,2	cyclictest	374999	-21	kworker/14:1+i915-unordered	20:10:56	6
322131	99	456	26,427	cyclictest	0	-21	swapper/7	21:05:39	13
322110	99	456	456,0	cyclictest	0	-21	swapper/2	21:10:55	8
322158	99	455	454,1	cyclictest	0	-21	swapper/13	20:12:56	5
322158	99	454	453,1	cyclictest	455506	-21	kworker/13:1+i915-unordered	21:57:55	5
322145	99	453	0,452	cyclictest	0	-21	swapper/10	21:01:55	2
322107	99	453	5,58	cyclictest	0	-21	swapper/1	21:14:55	1
322165	99	452	451,1	cyclictest	0	-21	swapper/15	19:30:56	7
322131	99	452	25,30	cyclictest	0	-21	swapper/7	00:05:37	13
322114	99	452	450,2	cyclictest	455549	-21	kworker/3:1+i915-unordered	22:16:55	9
322110	99	450	0,447	cyclictest	0	-21	swapper/2	19:38:51	8
322110	99	449	448,1	cyclictest	0	-21	swapper/2	21:00:55	8
322137	99	446	24,418	cyclictest	0	-21	swapper/9	23:27:19	15
322137	99	446	24,418	cyclictest	0	-21	swapper/9	23:27:19	15
322110	99	445	5,438	cyclictest	0	-21	swapper/2	22:24:55	8
322154	99	444	443,1	cyclictest	0	-21	swapper/12	22:24:55	4
322131	99	444	0,29	cyclictest	0	-21	swapper/7	20:48:51	13
322131	99	444	0,29	cyclictest	0	-21	swapper/7	20:48:51	13
322158	99	443	23,29	cyclictest	0	-21	swapper/13	19:54:55	5
322137	99	443	17,30	cyclictest	0	-21	swapper/9	20:29:16	15
322131	99	443	441,2	cyclictest	338868	-21	kworker/7:0+i915-unordered	19:30:56	13
322162	99	442	439,1	cyclictest	654	50	usb-storage	21:01:55	6
322110	99	441	0,439	cyclictest	0	-21	swapper/2	22:16:55	8
322103	99	441	0,3	cyclictest	0	-21	swapper/0	19:16:50	0
322145	99	440	439,1	cyclictest	697	50	irq/159-i915	20:12:56	2
322165	99	439	439,0	cyclictest	483823	-21	kworker/15:1+i915-unordered	22:31:55	7
322149	99	439	409,30	cyclictest	0	-21	swapper/11	22:16:55	3
322145	99	438	437,1	cyclictest	697	50	irq/159-i915	19:29:56	2
322126	99	437	16,29	cyclictest	0	-21	swapper/6	22:56:55	12
322118	99	437	435,1	cyclictest	467619	-21	kworker/4:2+i915-unordered	22:24:55	10
322158	99	436	15,28	cyclictest	0	-21	swapper/13	21:30:55	5
322158	99	435	22,412	cyclictest	0	-21	swapper/13	23:40:55	5
322154	99	434	433,1	cyclictest	1818	-21	snmpd	21:39:06	4
322135	99	432	14,417	cyclictest	0	-21	swapper/8	21:34:37	14
322110	99	432	11,420	cyclictest	0	-21	swapper/2	21:17:19	8
322158	99	431	19,411	cyclictest	0	-21	swapper/13	21:11:55	5
322137	99	431	1,29	cyclictest	0	-21	swapper/9	19:49:17	15
322110	99	431	430,1	cyclictest	0	-21	swapper/2	22:45:55	8
322135	99	430	16,414	cyclictest	0	-21	swapper/8	23:24:17	14
322135	99	430	16,414	cyclictest	0	-21	swapper/8	23:24:17	14
322122	99	427	426,1	cyclictest	0	-21	swapper/5	00:12:55	11
322145	99	426	423,2	cyclictest	387201	-21	kworker/10:2+i915-unordered	20:54:17	2
322137	99	425	24,397	cyclictest	0	-21	swapper/9	00:18:18	15
322137	99	425	23,398	cyclictest	0	-21	swapper/9	21:21:19	15
322118	99	425	425,0	cyclictest	0	-21	swapper/4	21:39:06	10
322110	99	424	24,399	cyclictest	0	-21	swapper/2	21:28:39	8
322107	99	424	4,29	cyclictest	0	-21	swapper/1	19:44:55	1
322145	99	423	423,0	cyclictest	697	50	irq/159-i915	22:31:55	2
322145	99	423	422,1	cyclictest	697	50	irq/159-i915	20:35:56	2
322145	99	423	3,30	cyclictest	0	-21	swapper/10	22:11:55	2
322137	99	423	24,395	cyclictest	0	-21	swapper/9	22:35:18	15
322137	99	423	23,397	cyclictest	0	-21	swapper/9	23:32:39	15
322137	99	423	23,397	cyclictest	0	-21	swapper/9	23:32:39	15
322126	99	423	421,2	cyclictest	0	-21	swapper/6	20:52:55	12
322137	99	422	420,1	cyclictest	301400	-21	kworker/9:4+i915-unordered	19:29:56	15
322137	99	422	23,396	cyclictest	0	-21	swapper/9	22:41:17	15
322126	99	422	420,1	cyclictest	0	-21	swapper/6	21:01:55	12
322122	99	422	420,2	cyclictest	0	-21	swapper/5	00:31:55	11
322110	99	422	2,419	cyclictest	0	-21	swapper/2	23:17:40	8
322137	99	421	23,397	cyclictest	0	-21	swapper/9	20:05:18	15
322137	99	421	23,395	cyclictest	0	-21	swapper/9	23:20:18	15
322137	99	421	23,395	cyclictest	0	-21	swapper/9	23:20:18	15
322137	99	421	22,396	cyclictest	0	-21	swapper/9	21:33:38	15
322137	99	421	21,397	cyclictest	0	-21	swapper/9	21:56:18	15
322110	99	421	1,419	cyclictest	0	-21	swapper/2	21:53:41	8
322137	99	420	22,396	cyclictest	0	-21	swapper/9	23:56:17	15
322137	99	420	21,396	cyclictest	0	-21	swapper/9	22:11:17	15
322135	99	420	25,394	cyclictest	0	-21	swapper/8	22:20:41	14
322110	99	420	22,397	cyclictest	0	-21	swapper/2	22:05:39	8
322162	99	419	419,0	cyclictest	407168	-21	kworker/14:0+i915-unordered	21:10:55	6
322158	99	419	0,26	cyclictest	0	-21	swapper/13	21:59:55	5
322137	99	419	20,397	cyclictest	0	-21	swapper/9	21:41:40	15
322135	99	419	23,395	cyclictest	0	-21	swapper/8	19:41:40	14
322126	99	419	0,418	cyclictest	0	-21	swapper/6	21:34:55	12
322122	99	419	419,0	cyclictest	0	-21	swapper/5	21:14:16	11
322110	99	419	418,1	cyclictest	351170	-21	kworker/2:1+i915-unordered	19:47:56	8
322110	99	419	21,397	cyclictest	0	-21	swapper/2	20:54:17	8
322137	99	418	23,393	cyclictest	0	-21	swapper/9	22:16:40	15
322162	99	417	415,1	cyclictest	374999	-21	kworker/14:1+pm	20:17:29	6
322149	99	417	414,2	cyclictest	0	-21	swapper/11	00:31:55	3
322145	99	417	416,0	cyclictest	0	-21	swapper/10	22:05:55	2
322145	99	417	0,30	cyclictest	0	-21	swapper/10	21:20:55	2
322137	99	417	19,396	cyclictest	0	-21	swapper/9	23:12:40	15
322137	99	417	19,396	cyclictest	0	-21	swapper/9	21:04:41	15
322137	99	417	19,396	cyclictest	0	-21	swapper/9	19:14:41	15
322137	99	417	17,399	cyclictest	0	-21	swapper/9	19:48:37	15
322137	99	417	17,397	cyclictest	0	-21	swapper/9	22:30:38	15
322137	99	417	17,396	cyclictest	0	-21	swapper/9	22:52:41	15
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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