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 Tue Sep 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
3661857	99	565	12,551	cyclictest	0	-21	swapper/6	22:41:34	12
3661869	99	564	7,27	cyclictest	0	-21	swapper/9	19:07:35	15
3661846	99	539	65,473	cyclictest	0	-21	swapper/3	23:55:34	9
3661850	99	535	16,518	cyclictest	0	-21	swapper/4	23:58:34	10
3661857	99	528	6,521	cyclictest	0	-21	swapper/6	19:30:35	12
3661838	99	524	523,1	cyclictest	3618799	-21	kworker/1:6+i915-unordered	19:07:35	1
3661892	99	522	521,1	cyclictest	3710880	-21	kworker/14:0+i915-unordered	20:16:34	6
3661857	99	521	0,520	cyclictest	0	-21	swapper/6	20:53:34	12
3661871	99	517	515,1	cyclictest	3779986	-21	kworker/10:1+i915-unordered	21:32:34	2
3661841	99	516	515,1	cyclictest	0	-21	swapper/2	21:32:34	8
3661838	99	502	26,59	cyclictest	0	-21	swapper/1	00:27:34	1
3661841	99	494	492,1	cyclictest	3613774	-21	kworker/2:1+i915-unordered	19:08:35	8
3661871	99	493	492,1	cyclictest	0	-21	swapper/10	19:08:35	2
3661888	99	488	24,463	cyclictest	0	-21	swapper/13	20:16:34	5
3661860	99	486	456,30	cyclictest	0	-21	swapper/7	23:05:34	13
3661892	99	482	481,1	cyclictest	0	-21	swapper/14	00:13:34	6
3661878	99	478	478,0	cyclictest	3814080	-21	kworker/11:6+i915-unordered	23:43:34	3
3661892	99	477	475,1	cyclictest	3827238	-21	kworker/14:1+i915-unordered	22:41:34	6
3661860	99	477	475,2	cyclictest	0	-21	swapper/7	23:03:34	13
3661852	99	477	26,28	cyclictest	0	-21	swapper/5	19:39:56	11
3661852	99	476	26,30	cyclictest	0	-21	swapper/5	00:04:57	11
3661852	99	475	26,29	cyclictest	0	-21	swapper/5	22:42:20	11
3661852	99	475	25,29	cyclictest	0	-21	swapper/5	00:00:17	11
3661878	99	473	473,0	cyclictest	3814080	-21	kworker/11:6+i915-unordered	23:55:34	3
3661888	99	471	39,431	cyclictest	3678700	-21	kworker/13:1+i915-unordered	19:32:35	5
3661860	99	469	469,0	cyclictest	0	-21	swapper/7	22:55:34	13
3661852	99	468	18,29	cyclictest	0	-21	swapper/5	23:06:21	11
3661888	99	463	462,1	cyclictest	3686598	-21	kworker/13:0+i915-unordered	19:38:35	5
3661865	99	462	0,460	cyclictest	0	-21	swapper/8	22:38:30	14
3661888	99	460	459,1	cyclictest	3775144	-21	kworker/13:2+i915-unordered	21:26:34	5
3661888	99	459	458,1	cyclictest	3843553	-21	kworker/13:0+i915-unordered	22:50:34	5
3661838	99	458	10,29	cyclictest	0	-21	swapper/1	22:04:57	1
3661888	99	456	14,441	cyclictest	3839437	-21	kworker/13:1+i915-unordered	22:46:34	5
3661894	99	455	453,2	cyclictest	3855487	-21	kworker/15:2+i915-unordered	23:03:34	7
3661888	99	454	10,30	cyclictest	0	-21	swapper/13	20:47:34	5
3661888	99	454	10,30	cyclictest	0	-21	swapper/13	20:47:34	5
3661878	99	454	18,433	cyclictest	3887883	-21	sleep	23:49:30	3
3661878	99	454	15,28	cyclictest	0	-21	swapper/11	19:17:34	3
3661894	99	453	8,29	cyclictest	0	-21	swapper/15	23:11:56	7
3661892	99	453	450,3	cyclictest	0	-21	swapper/14	20:31:34	6
3661888	99	452	451,1	cyclictest	3711015	-21	kworker/13:1+i915-unordered	20:11:34	5
3661852	99	450	0,30	cyclictest	0	-21	swapper/5	23:14:57	11
3661852	99	448	26,420	cyclictest	0	-21	swapper/5	22:11:56	11
3661894	99	447	446,1	cyclictest	3851415	-21	kworker/15:0+pm	22:56:30	7
3661888	99	447	445,2	cyclictest	0	-21	swapper/13	00:13:34	5
3661888	99	447	444,3	cyclictest	0	-21	swapper/13	20:31:34	5
3661850	99	447	1,29	cyclictest	0	-21	swapper/4	20:45:58	10
3661850	99	447	1,29	cyclictest	0	-21	swapper/4	20:45:58	10
3661850	99	447	0,27	cyclictest	0	-21	swapper/4	20:20:57	10
3661838	99	447	444,2	cyclictest	3748199	-21	kworker/1:2+i915-unordered	20:49:57	1
3661894	99	446	443,2	cyclictest	3627954	-21	kworker/u64:3+events_unbound	20:11:34	7
3661860	99	446	25,420	cyclictest	0	-21	swapper/7	23:24:30	13
3661846	99	446	23,422	cyclictest	0	-21	swapper/3	22:33:55	9
3661838	99	446	26,419	cyclictest	0	-21	swapper/1	23:21:56	1
3661852	99	445	24,419	cyclictest	0	-21	swapper/5	19:23:56	11
3661852	99	445	23,420	cyclictest	0	-21	swapper/5	22:50:57	11
3661852	99	445	22,420	cyclictest	0	-21	swapper/5	19:57:57	11
3661850	99	445	26,418	cyclictest	0	-21	swapper/4	22:00:20	10
3661850	99	445	26,418	cyclictest	0	-21	swapper/4	20:34:18	10
3661850	99	445	25,419	cyclictest	0	-21	swapper/4	20:51:16	10
3661850	99	445	25,419	cyclictest	0	-21	swapper/4	00:31:19	10
3661850	99	445	23,421	cyclictest	0	-21	swapper/4	19:29:17	10
3661892	99	444	4,28	cyclictest	0	-21	swapper/14	20:41:34	6
3661892	99	444	4,28	cyclictest	0	-21	swapper/14	20:41:34	6
3661888	99	444	443,1	cyclictest	0	-21	swapper/13	19:52:35	5
3661888	99	444	443,1	cyclictest	0	-21	swapper/13	00:31:34	5
3661852	99	444	24,418	cyclictest	0	-21	swapper/5	20:13:55	11
3661852	99	444	23,418	cyclictest	0	-21	swapper/5	19:38:57	11
3661852	99	444	22,419	cyclictest	0	-21	swapper/5	19:47:16	11
3661850	99	444	23,420	cyclictest	0	-21	swapper/4	00:21:18	10
3661852	99	443	24,418	cyclictest	0	-21	swapper/5	20:06:56	11
3661852	99	443	22,420	cyclictest	0	-21	swapper/5	22:46:55	11
3661852	99	443	22,420	cyclictest	0	-21	swapper/5	21:26:56	11
3661846	99	443	21,421	cyclictest	0	-21	swapper/3	23:41:56	9
3661838	99	443	23,419	cyclictest	0	-21	swapper/1	22:37:57	1
3661878	99	442	1,30	cyclictest	0	-21	swapper/11	21:41:34	3
3661857	99	442	21,420	cyclictest	0	-21	swapper/6	19:49:58	12
3661852	99	442	23,417	cyclictest	0	-21	swapper/5	21:16:57	11
3661852	99	442	20,420	cyclictest	0	-21	swapper/5	20:19:18	11
3661852	99	442	20,419	cyclictest	0	-21	swapper/5	23:24:18	11
3661852	99	442	20,419	cyclictest	0	-21	swapper/5	22:58:56	11
3661852	99	442	20,419	cyclictest	0	-21	swapper/5	21:35:18	11
3661852	99	442	20,418	cyclictest	0	-21	swapper/5	21:54:16	11
3661846	99	442	21,420	cyclictest	0	-21	swapper/3	21:47:58	9
3661846	99	442	20,421	cyclictest	0	-21	swapper/3	22:06:55	9
3661838	99	442	18,423	cyclictest	0	-21	swapper/1	23:00:19	1
3661833	99	442	438,4	cyclictest	1818	-21	snmpd	22:38:30	0
3661852	99	441	22,417	cyclictest	0	-21	swapper/5	19:32:56	11
3661852	99	441	21,418	cyclictest	0	-21	swapper/5	23:26:21	11
3661852	99	441	21,418	cyclictest	0	-21	swapper/5	23:26:21	11
3661852	99	441	20,419	cyclictest	0	-21	swapper/5	00:20:21	11
3661846	99	441	21,419	cyclictest	0	-21	swapper/3	19:48:55	9
3661846	99	441	20,420	cyclictest	0	-21	swapper/3	23:46:18	9
3661846	99	441	20,420	cyclictest	0	-21	swapper/3	21:20:18	9
3661846	99	441	20,420	cyclictest	0	-21	swapper/3	21:05:57	9
3661846	99	441	20,420	cyclictest	0	-21	swapper/3	19:25:57	9
3661846	99	441	19,421	cyclictest	0	-21	swapper/3	21:52:55	9
3661852	99	440	20,418	cyclictest	0	-21	swapper/5	20:40:21	11
3661852	99	440	20,418	cyclictest	0	-21	swapper/5	20:40:21	11
3661852	99	440	19,418	cyclictest	0	-21	swapper/5	20:35:18	11
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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