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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 Mar 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
625322	99	567	9,28	cyclictest	0	-21	swapper/12	19:21:06	4
625284	99	543	11,531	cyclictest	0	-21	swapper/3	19:55:05	9
625317	99	538	25,44	cyclictest	0	-21	swapper/11	23:13:05	3
625330	99	535	3,531	cyclictest	0	-21	swapper/14	21:26:05	6
625330	99	525	25,499	cyclictest	0	-21	swapper/14	22:11:05	6
625330	99	519	5,513	cyclictest	0	-21	swapper/14	22:06:05	6
625295	99	517	0,513	cyclictest	0	-21	swapper/6	19:58:05	12
625284	99	516	13,499	cyclictest	0	-21	swapper/3	23:52:05	9
625272	99	514	13,497	cyclictest	0	-21	swapper/0	23:46:05	0
625330	99	505	502,2	cyclictest	658235	-21	kworker/14:2+i915-unordered	19:58:05	6
625326	99	492	490,2	cyclictest	839199	-21	kworker/13:2+i915-unordered	00:01:05	5
625326	99	492	490,2	cyclictest	839199	-21	kworker/13:2+i915-unordered	00:01:05	5
625293	99	492	462,30	cyclictest	0	-21	swapper/5	00:01:05	11
625293	99	492	462,30	cyclictest	0	-21	swapper/5	00:01:05	11
625317	99	480	478,2	cyclictest	782708	-21	kworker/11:1+i915-unordered	22:27:05	3
625293	99	477	476,1	cyclictest	0	-21	swapper/5	22:02:05	11
625326	99	475	474,1	cyclictest	754670	-21	kworker/13:0+i915-unordered	22:02:05	5
625279	99	470	13,456	cyclictest	0	-21	swapper/2	22:00:05	8
625279	99	468	14,453	cyclictest	0	-21	swapper/2	19:55:05	8
625295	99	467	466,1	cyclictest	770695	-21	kworker/6:0+i915-unordered	22:06:05	12
625317	99	463	462,1	cyclictest	0	-21	swapper/11	22:56:05	3
625279	99	463	8,455	cyclictest	0	-21	swapper/2	21:26:05	8
625279	99	463	6,453	cyclictest	0	-21	swapper/2	22:07:05	8
625284	99	460	458,2	cyclictest	766856	-21	kworker/3:1+i915-unordered	22:25:05	9
625284	99	460	458,2	cyclictest	0	-21	swapper/3	21:52:40	9
625330	99	457	456,1	cyclictest	0	-21	swapper/14	19:46:05	6
625330	99	453	27,31	cyclictest	0	-21	swapper/14	20:30:49	6
625295	99	449	447,2	cyclictest	650006	-21	kworker/6:2+i915-unordered	19:46:05	12
625317	99	448	445,2	cyclictest	839085	-21	kworker/11:2+i915-unordered	23:52:05	3
625272	99	448	22,30	cyclictest	0	-21	swapper/0	23:29:27	0
625311	99	446	445,1	cyclictest	697	50	irq/159-i915	22:07:05	2
625272	99	445	21,30	cyclictest	0	-21	swapper/0	21:00:28	0
625293	99	443	440,3	cyclictest	0	-21	swapper/5	21:58:05	11
625335	99	442	439,2	cyclictest	778879	-21	kworker/15:2+events	22:27:27	7
625335	99	442	439,2	cyclictest	738677	-21	kworker/15:1+events	21:39:27	7
625317	99	442	441,1	cyclictest	638110	-21	kworker/11:0+i915-unordered	19:55:05	3
625279	99	441	2,438	cyclictest	0	-21	swapper/2	22:11:05	8
625272	99	441	19,30	cyclictest	0	-21	swapper/0	20:51:28	0
625326	99	439	438,1	cyclictest	746693	-21	kworker/13:1+i915-unordered	21:58:05	5
625299	99	439	438,1	cyclictest	0	-21	swapper/7	21:39:27	13
625335	99	438	435,2	cyclictest	843076	-21	kworker/15:2+events	00:03:27	7
625335	99	438	435,2	cyclictest	843076	-21	kworker/15:2+events	00:03:27	7
625335	99	438	435,2	cyclictest	750896	-21	kworker/15:0+events	22:43:27	7
625317	99	438	16,30	cyclictest	0	-21	swapper/11	20:33:05	3
625299	99	438	438,0	cyclictest	0	-21	swapper/7	22:27:27	13
625330	99	437	16,29	cyclictest	0	-21	swapper/14	00:08:05	6
625330	99	437	16,29	cyclictest	0	-21	swapper/14	00:08:05	6
625330	99	437	12,30	cyclictest	0	-21	swapper/14	19:36:27	6
625279	99	437	24,406	cyclictest	698338	-21	kworker/2:1+i915-unordered	20:56:05	8
625330	99	436	12,30	cyclictest	0	-21	swapper/14	20:01:27	6
625330	99	436	10,30	cyclictest	0	-21	swapper/14	19:51:28	6
625284	99	436	435,1	cyclictest	786748	-21	kworker/3:2+i915-unordered	23:13:05	9
625330	99	435	13,30	cyclictest	0	-21	swapper/14	22:38:27	6
625330	99	435	13,29	cyclictest	0	-21	swapper/14	22:15:28	6
625330	99	435	11,29	cyclictest	0	-21	swapper/14	20:43:29	6
625330	99	434	10,30	cyclictest	0	-21	swapper/14	23:57:27	6
625330	99	434	10,30	cyclictest	0	-21	swapper/14	23:57:27	6
625299	99	434	433,0	cyclictest	0	-21	swapper/7	22:43:27	13
625299	99	433	433,0	cyclictest	0	-21	swapper/7	00:03:27	13
625299	99	433	433,0	cyclictest	0	-21	swapper/7	00:03:27	13
625330	99	432	10,29	cyclictest	0	-21	swapper/14	21:20:29	6
625330	99	432	10,29	cyclictest	0	-21	swapper/14	00:02:27	6
625330	99	432	10,29	cyclictest	0	-21	swapper/14	00:02:27	6
625279	99	432	429,3	cyclictest	766771	-21	kworker/2:1+i915-unordered	22:20:05	8
625279	99	431	429,2	cyclictest	698338	-21	kworker/2:1+i915-unordered	20:47:05	8
625330	99	430	6,30	cyclictest	0	-21	swapper/14	19:30:29	6
625279	99	430	427,2	cyclictest	839367	-21	kworker/2:0+i915-unordered	23:37:05	8
625335	99	429	426,2	cyclictest	650124	-21	kworker/15:2+events	19:42:52	7
625288	99	429	426,2	cyclictest	682169	-21	kworker/u64:3+events_unbound	21:33:51	10
625311	99	428	425,2	cyclictest	855154	-21	kworker/u64:5+events_unbound	00:33:48	2
625311	99	428	425,2	cyclictest	624692	-21	kworker/u64:4+events_unbound	21:27:28	2
625307	99	428	425,2	cyclictest	750613	-21	kworker/u64:1+events_unbound	22:28:28	15
625311	99	427	426,1	cyclictest	697	50	irq/159-i915	22:00:05	2
625311	99	427	1,29	cyclictest	0	-21	swapper/10	23:44:49	2
625284	99	427	26,400	cyclictest	0	-21	swapper/3	23:31:27	9
625279	99	427	425,2	cyclictest	722637	-21	kworker/2:1+i915-unordered	21:11:05	8
625279	99	427	425,2	cyclictest	722637	-21	kworker/2:1+i915-unordered	21:11:05	8
625335	99	426	423,2	cyclictest	778879	-21	kworker/15:2+events	22:17:51	7
625330	99	426	0,30	cyclictest	0	-21	swapper/14	23:42:48	6
625288	99	426	0,425	cyclictest	0	-21	swapper/4	21:14:52	10
625288	99	426	0,425	cyclictest	0	-21	swapper/4	21:14:52	10
625288	99	426	0,425	cyclictest	0	-21	swapper/4	19:13:28	10
625330	99	425	0,30	cyclictest	0	-21	swapper/14	19:43:50	6
625322	99	425	422,2	cyclictest	722397	-21	kworker/u64:7+events_unbound	21:14:52	4
625322	99	425	422,2	cyclictest	722397	-21	kworker/u64:7+events_unbound	21:14:52	4
625322	99	425	422,2	cyclictest	628876	-21	kworker/u64:6+events_unbound	19:13:28	4
625311	99	425	425,0	cyclictest	697	50	irq/159-i915	19:55:05	2
625311	99	425	26,398	cyclictest	0	-21	swapper/10	00:24:28	2
625311	99	425	25,399	cyclictest	0	-21	swapper/10	19:59:28	2
625299	99	425	425,0	cyclictest	0	-21	swapper/7	19:42:52	13
625322	99	424	421,2	cyclictest	682169	-21	kworker/u64:3+events_unbound	22:12:50	4
625317	99	424	422,1	cyclictest	1801	-21	snmpd	21:38:00	3
625284	99	424	24,399	cyclictest	0	-21	swapper/3	23:08:27	9
625284	99	424	23,400	cyclictest	0	-21	swapper/3	20:06:27	9
625322	99	423	0,422	cyclictest	0	-21	swapper/12	19:46:52	4
625295	99	423	422,1	cyclictest	1801	-21	snmpd	22:50:41	12
625284	99	423	25,397	cyclictest	0	-21	swapper/3	22:55:28	9
625284	99	423	25,397	cyclictest	0	-21	swapper/3	22:50:29	9
625284	99	423	25,397	cyclictest	0	-21	swapper/3	22:42:29	9
625284	99	423	23,399	cyclictest	0	-21	swapper/3	22:08:28	9
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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