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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 Tue Jun 30, 2026 00:43:47)
Delayed (victim)					Switcher (culprit)			Timestamp	CPU
PID	Prio	Total latency (µs)	T^(,W^*) latency (µs)	Cmd	PID	Prio	Cmd	Timestamp	CPU
387266	99	552	16,535	cyclictest	0	-21	swapper/9	23:44:47	15
387237	99	539	17,520	cyclictest	0	-21	swapper/1	20:20:47	1
387294	99	535	13,521	cyclictest	0	-21	swapper/15	20:59:47	7
387248	99	531	529,2	cyclictest	589155	-21	kworker/4:2+i915-unordered	22:59:47	10
387294	99	518	516,2	cyclictest	495063	-21	kworker/15:1+i915-unordered	21:17:47	7
387279	99	518	0,517	cyclictest	0	-21	swapper/11	23:19:47	3
387245	99	515	513,2	cyclictest	602383	-21	kworker/3:1+i915-unordered	23:19:47	9
387294	99	513	511,1	cyclictest	628162	-21	kworker/15:0+i915-unordered	23:48:47	7
387233	99	510	21,29	cyclictest	0	-21	swapper/0	23:04:47	0
387283	99	508	507,1	cyclictest	0	-21	swapper/12	22:59:47	4
387266	99	503	502,1	cyclictest	430311	-21	kworker/9:0+i915-unordered	20:20:47	15
387294	99	499	498,1	cyclictest	614981	-21	kworker/15:1+i915-unordered	23:45:47	7
387261	99	499	497,2	cyclictest	459651	-21	kworker/7:0+i915-unordered	20:27:47	13
387294	99	498	496,2	cyclictest	434680	-21	kworker/15:1+i915-unordered	20:19:47	7
387261	99	498	7,491	cyclictest	0	-21	swapper/7	21:17:47	13
387272	99	497	496,1	cyclictest	440150	-21	kworker/10:0+i915-unordered	20:13:47	2
387261	99	494	15,59	cyclictest	0	-21	swapper/7	23:14:09	13
387233	99	493	16,476	cyclictest	0	-21	swapper/0	20:19:47	0
387266	99	486	484,2	cyclictest	0	-21	swapper/9	20:23:47	15
387261	99	486	6,59	cyclictest	0	-21	swapper/7	20:20:10	13
387256	99	480	478,1	cyclictest	585229	-21	kworker/6:1+i915-unordered	23:04:47	12
387233	99	479	19,459	cyclictest	0	-21	swapper/0	19:39:47	0
387233	99	476	16,460	cyclictest	0	-21	swapper/0	23:48:47	0
387261	99	475	475,0	cyclictest	525010	-21	kworker/7:0+i915-unordered	22:10:47	13
387237	99	474	26,30	cyclictest	0	-21	swapper/1	21:48:31	1
387237	99	472	25,28	cyclictest	0	-21	swapper/1	21:29:31	1
387237	99	472	25,28	cyclictest	0	-21	swapper/1	21:29:31	1
387294	99	470	470,0	cyclictest	628162	-21	kworker/15:0+i915-unordered	00:09:47	7
387233	99	470	9,0	cyclictest	0	-21	swapper/0	19:30:47	0
387242	99	469	14,58	cyclictest	0	-21	swapper/2	19:14:09	8
387289	99	468	24,30	cyclictest	0	-21	swapper/14	22:12:47	6
387266	99	467	25,29	cyclictest	0	-21	swapper/9	22:11:42	15
387242	99	467	23,28	cyclictest	0	-21	swapper/2	19:41:43	8
387283	99	465	464,1	cyclictest	0	-21	swapper/12	19:40:47	4
387237	99	465	9,29	cyclictest	0	-21	swapper/1	20:06:43	1
387286	99	463	460,3	cyclictest	1818	-21	snmpd	21:59:58	5
387286	99	463	19,30	cyclictest	0	-21	swapper/13	19:23:30	5
387233	99	460	0,459	cyclictest	0	-21	swapper/0	00:09:47	0
387264	99	459	458,1	cyclictest	697	50	irq/159-i915	22:59:47	14
387261	99	458	11,28	cyclictest	0	-21	swapper/7	23:33:47	13
387248	99	458	457,1	cyclictest	404746	-21	kworker/4:0+i915-unordered	19:40:47	10
387242	99	458	17,30	cyclictest	0	-21	swapper/2	21:32:47	8
387242	99	458	17,30	cyclictest	0	-21	swapper/2	21:32:47	8
387294	99	457	17,30	cyclictest	0	-21	swapper/15	23:12:47	7
387261	99	456	7,29	cyclictest	0	-21	swapper/7	23:21:29	13
387266	99	455	18,28	cyclictest	0	-21	swapper/9	20:38:47	15
387248	99	450	0,29	cyclictest	0	-21	swapper/4	20:22:10	10
387294	99	449	9,29	cyclictest	0	-21	swapper/15	23:21:42	7
387261	99	449	7,28	cyclictest	0	-21	swapper/7	20:48:47	13
387237	99	449	0,29	cyclictest	0	-21	swapper/1	20:37:10	1
387286	99	448	7,29	cyclictest	0	-21	swapper/13	00:20:47	5
387286	99	448	7,29	cyclictest	0	-21	swapper/13	00:20:47	5
387266	99	447	2,29	cyclictest	0	-21	swapper/9	22:38:10	15
387264	99	447	444,2	cyclictest	697	50	irq/159-i915	21:33:47	14
387264	99	447	444,2	cyclictest	697	50	irq/159-i915	21:33:47	14
387242	99	446	18,29	cyclictest	0	-21	swapper/2	19:10:10	8
387237	99	446	24,419	cyclictest	0	-21	swapper/1	19:40:08	1
387237	99	446	23,422	cyclictest	0	-21	swapper/1	00:25:31	1
387266	99	445	5,30	cyclictest	0	-21	swapper/9	22:19:47	15
387256	99	445	445,0	cyclictest	0	-21	swapper/6	00:09:58	12
387237	99	445	25,419	cyclictest	0	-21	swapper/1	21:24:10	1
387237	99	445	25,417	cyclictest	0	-21	swapper/1	22:29:29	1
387237	99	445	25,417	cyclictest	0	-21	swapper/1	20:52:10	1
387237	99	445	25,417	cyclictest	0	-21	swapper/1	19:43:31	1
387237	99	445	24,419	cyclictest	0	-21	swapper/1	23:59:09	1
387237	99	445	24,418	cyclictest	0	-21	swapper/1	19:33:33	1
387237	99	444	25,417	cyclictest	0	-21	swapper/1	20:51:08	1
387237	99	444	25,0	cyclictest	0	-21	swapper/1	22:26:09	1
387237	99	444	23,420	cyclictest	0	-21	swapper/1	19:31:32	1
387237	99	444	23,418	cyclictest	0	-21	swapper/1	22:41:30	1
387233	99	444	442,2	cyclictest	0	-21	swapper/0	22:59:47	0
387242	99	443	2,29	cyclictest	0	-21	swapper/2	20:34:47	8
387237	99	443	23,419	cyclictest	0	-21	swapper/1	23:34:32	1
387242	99	442	0,29	cyclictest	0	-21	swapper/2	21:12:47	8
387237	99	442	24,416	cyclictest	0	-21	swapper/1	19:52:30	1
387237	99	442	23,417	cyclictest	0	-21	swapper/1	21:09:33	1
387237	99	442	22,419	cyclictest	0	-21	swapper/1	20:29:31	1
387237	99	442	21,419	cyclictest	0	-21	swapper/1	21:58:32	1
387261	99	441	20,420	cyclictest	0	-21	swapper/7	19:40:31	13
387248	99	441	0,440	cyclictest	0	-21	swapper/4	19:59:31	10
387237	99	441	20,420	cyclictest	0	-21	swapper/1	00:32:32	1
387237	99	441	20,419	cyclictest	0	-21	swapper/1	21:46:32	1
387289	99	440	26,413	cyclictest	0	-21	swapper/14	20:05:47	6
387261	99	440	24,415	cyclictest	0	-21	swapper/7	19:21:32	13
387233	99	440	436,3	cyclictest	554178	-21	kworker/u64:2+events_unbound	22:43:47	0
387252	99	439	26,412	cyclictest	0	-21	swapper/5	20:10:47	11
387286	99	438	24,413	cyclictest	0	-21	swapper/13	23:15:47	5
387294	99	437	436,1	cyclictest	265	50	irq/134-xhci_hcd	23:03:47	7
387261	99	437	15,420	cyclictest	0	-21	swapper/7	23:43:28	13
387272	99	436	21,414	cyclictest	0	-21	swapper/10	22:32:47	2
387272	99	436	21,414	cyclictest	0	-21	swapper/10	21:05:47	2
387261	99	435	15,418	cyclictest	0	-21	swapper/7	22:03:31	13
387261	99	435	12,419	cyclictest	0	-21	swapper/7	20:54:08	13
387242	99	435	23,412	cyclictest	0	-21	swapper/2	21:42:47	8
387261	99	434	433,1	cyclictest	452371	-21	kworker/7:1+i915-unordered	20:59:47	13
387261	99	434	433,1	cyclictest	0	-21	swapper/7	00:01:19	13
387261	99	434	13,419	cyclictest	0	-21	swapper/7	23:01:30	13
387256	99	434	432,2	cyclictest	0	-21	swapper/6	19:25:47	12
387242	99	434	20,413	cyclictest	0	-21	swapper/2	23:54:47	8
387289	99	433	12,420	cyclictest	0	-21	swapper/14	23:01:43	6
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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