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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 Mon Feb 16, 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
1239913	99	552	22,529	cyclictest	0	-21	swapper/9	22:48:42	15
1239886	99	538	9,29	cyclictest	0	-21	swapper/2	23:50:42	8
1239932	99	518	17,500	cyclictest	0	-21	swapper/13	19:33:42	5
1239894	99	508	9,498	cyclictest	0	-21	swapper/4	22:10:42	10
1239928	99	500	500,0	cyclictest	0	-21	swapper/12	23:53:42	4
1239910	99	490	20,29	cyclictest	0	-21	swapper/8	21:30:42	14
1239910	99	486	2,45	cyclictest	0	-21	swapper/8	22:48:42	14
1239923	99	479	479,0	cyclictest	0	-21	swapper/11	00:31:42	3
1239936	99	473	473,0	cyclictest	0	-21	swapper/14	22:57:42	6
1239883	99	472	470,2	cyclictest	1305020	-21	kworker/1:0+i915-unordered	20:33:42	1
1239894	99	471	21,59	cyclictest	0	-21	swapper/4	23:02:42	10
1239923	99	467	465,2	cyclictest	0	-21	swapper/11	00:21:42	3
1239936	99	466	465,1	cyclictest	1433738	-21	kworker/14:2+i915-unordered	23:16:42	6
1239903	99	465	463,1	cyclictest	1421549	-21	kworker/6:2+i915-unordered	22:57:42	12
1239899	99	463	462,1	cyclictest	1260641	-21	kworker/5:0+i915-unordered	19:33:42	11
1239894	99	463	20,30	cyclictest	0	-21	swapper/4	23:55:42	10
1239910	99	458	0,455	cyclictest	0	-21	swapper/8	23:16:42	14
1239936	99	454	452,2	cyclictest	1369248	-21	kworker/14:1+i915-unordered	22:07:42	6
1239913	99	454	452,2	cyclictest	1429697	-21	kworker/9:2+i915-unordered	23:10:42	15
1239886	99	453	25,29	cyclictest	0	-21	swapper/2	21:39:05	8
1239910	99	451	0,25	cyclictest	0	-21	swapper/8	22:07:42	14
1239883	99	447	445,2	cyclictest	1401482	-21	kworker/1:0+i915-unordered	22:46:42	1
1239883	99	447	25,30	cyclictest	0	-21	swapper/1	20:46:42	1
1239905	99	445	19,29	cyclictest	0	-21	swapper/7	19:16:27	13
1239905	99	444	18,30	cyclictest	0	-21	swapper/7	19:48:26	13
1239894	99	444	23,29	cyclictest	0	-21	swapper/4	19:50:42	10
1239903	99	442	412,30	cyclictest	0	-21	swapper/6	22:07:42	12
1239899	99	441	21,30	cyclictest	0	-21	swapper/5	21:15:42	11
1239899	99	441	21,30	cyclictest	0	-21	swapper/5	21:15:42	11
1239910	99	440	0,437	cyclictest	0	-21	swapper/8	00:11:42	14
1239899	99	440	20,29	cyclictest	0	-21	swapper/5	19:11:42	11
1239886	99	439	19,29	cyclictest	0	-21	swapper/2	22:58:42	8
1239886	99	439	19,29	cyclictest	0	-21	swapper/2	21:46:42	8
1239886	99	439	18,29	cyclictest	0	-21	swapper/2	20:51:42	8
1239932	99	438	8,429	cyclictest	0	-21	swapper/13	19:57:42	5
1239899	99	437	437,0	cyclictest	0	-21	swapper/5	22:00:42	11
1239899	99	437	16,28	cyclictest	0	-21	swapper/5	21:01:42	11
1239932	99	436	429,6	cyclictest	1801	-21	snmpd	20:58:55	5
1239905	99	435	14,30	cyclictest	0	-21	swapper/7	20:27:42	13
1239899	99	435	16,29	cyclictest	0	-21	swapper/5	23:26:42	11
1239905	99	434	16,29	cyclictest	0	-21	swapper/7	20:47:42	13
1239894	99	434	12,30	cyclictest	0	-21	swapper/4	20:02:42	10
1239886	99	434	17,29	cyclictest	0	-21	swapper/2	19:17:42	8
1239880	99	434	433,1	cyclictest	697	50	irq/159-i915	21:16:42	0
1239880	99	434	433,1	cyclictest	697	50	irq/159-i915	21:16:42	0
1239899	99	433	15,28	cyclictest	0	-21	swapper/5	20:03:42	11
1239928	99	432	6,28	cyclictest	0	-21	swapper/12	21:53:06	4
1239923	99	432	430,2	cyclictest	0	-21	swapper/11	21:47:42	3
1239886	99	432	13,28	cyclictest	0	-21	swapper/2	20:48:42	8
1239883	99	432	431,1	cyclictest	0	-21	swapper/1	22:31:42	1
1239903	99	430	0,429	cyclictest	0	-21	swapper/6	20:13:42	12
1239940	99	426	426,0	cyclictest	0	-21	swapper/15	23:11:27	7
1239936	99	426	424,2	cyclictest	1337191	-21	kworker/14:0+i915-unordered	21:16:42	6
1239936	99	426	424,2	cyclictest	1337191	-21	kworker/14:0+i915-unordered	21:16:42	6
1239903	99	426	425,1	cyclictest	0	-21	swapper/6	23:16:42	12
1239894	99	426	423,2	cyclictest	1304860	-21	kworker/u64:10+events_unbound	20:38:42	10
1239913	99	425	26,398	cyclictest	0	-21	swapper/9	19:45:05	15
1239891	99	425	424,1	cyclictest	1493863	-21	kworker/3:2+i915-unordered	00:21:42	9
1239883	99	425	424,1	cyclictest	0	-21	swapper/1	00:11:42	1
1239910	99	424	422,2	cyclictest	0	-21	swapper/8	21:16:42	14
1239910	99	424	422,2	cyclictest	0	-21	swapper/8	21:16:42	14
1239932	99	423	0,422	cyclictest	0	-21	swapper/13	20:10:42	5
1239928	99	423	0,30	cyclictest	0	-21	swapper/12	21:58:05	4
1239928	99	421	20,400	cyclictest	0	-21	swapper/12	23:00:04	4
1239940	99	420	417,2	cyclictest	1441589	-21	kworker/u64:6+events_unbound	23:36:42	7
1239913	99	420	22,397	cyclictest	0	-21	swapper/9	00:25:04	15
1239923	99	419	415,3	cyclictest	1437565	-21	kworker/u64:0+events_unbound	23:25:42	3
1239918	99	419	417,2	cyclictest	0	-21	swapper/10	23:28:15	2
1239899	99	419	418,1	cyclictest	0	-21	swapper/5	22:25:04	11
1239894	99	419	418,1	cyclictest	1465936	-21	kworker/4:1+i915-unordered	23:53:42	10
1239883	99	419	0,29	cyclictest	0	-21	swapper/1	21:30:42	1
1239928	99	418	18,396	cyclictest	0	-21	swapper/12	20:12:29	4
1239891	99	418	21,396	cyclictest	0	-21	swapper/3	21:55:04	9
1239886	99	418	0,27	cyclictest	0	-21	swapper/2	21:42:42	8
1239886	99	418	0,27	cyclictest	0	-21	swapper/2	21:03:42	8
1239928	99	417	20,394	cyclictest	0	-21	swapper/12	21:45:05	4
1239923	99	417	24,392	cyclictest	0	-21	swapper/11	23:56:42	3
1239913	99	417	20,396	cyclictest	0	-21	swapper/9	00:05:05	15
1239913	99	417	20,396	cyclictest	0	-21	swapper/9	00:05:05	15
1239899	99	417	21,395	cyclictest	0	-21	swapper/5	22:50:42	11
1239928	99	415	17,396	cyclictest	0	-21	swapper/12	22:30:05	4
1239913	99	415	25,390	cyclictest	0	-21	swapper/9	20:42:42	15
1239913	99	415	17,397	cyclictest	0	-21	swapper/9	19:55:28	15
1239913	99	415	16,398	cyclictest	0	-21	swapper/9	23:47:25	15
1239883	99	415	22,392	cyclictest	0	-21	swapper/1	20:22:42	1
1239928	99	414	16,395	cyclictest	0	-21	swapper/12	20:54:05	4
1239913	99	414	16,397	cyclictest	0	-21	swapper/9	21:50:05	15
1239891	99	414	17,396	cyclictest	0	-21	swapper/3	21:30:05	9
1239913	99	413	18,394	cyclictest	0	-21	swapper/9	22:20:06	15
1239891	99	413	412,1	cyclictest	0	-21	swapper/3	23:17:42	9
1239886	99	413	21,391	cyclictest	0	-21	swapper/2	21:33:42	8
1239883	99	413	19,393	cyclictest	0	-21	swapper/1	19:18:42	1
1239932	99	412	0,411	cyclictest	0	-21	swapper/13	23:33:42	5
1239923	99	412	19,393	cyclictest	0	-21	swapper/11	21:35:42	3
1239913	99	412	16,395	cyclictest	0	-21	swapper/9	20:27:05	15
1239913	99	412	15,396	cyclictest	0	-21	swapper/9	23:28:25	15
1239905	99	412	20,392	cyclictest	0	-21	swapper/7	19:12:42	13
1239928	99	411	13,396	cyclictest	0	-21	swapper/12	21:10:04	4
1239928	99	411	13,396	cyclictest	0	-21	swapper/12	21:10:04	4
1239923	99	411	21,389	cyclictest	0	-21	swapper/11	00:35:42	3
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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