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 Aug 18, 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
2479088	99	728	727,1	cyclictest	0	-21	swapper/13	20:16:58	5
2479084	99	586	6,42	cyclictest	0	-21	swapper/12	22:46:14	4
2479044	99	576	23,552	cyclictest	0	-21	swapper/2	23:33:14	8
2479084	99	574	10,27	cyclictest	0	-21	swapper/12	23:06:14	4
2479063	99	574	21,552	cyclictest	0	-21	swapper/7	00:13:14	13
2479063	99	574	21,552	cyclictest	0	-21	swapper/7	00:13:14	13
2479088	99	553	15,460	cyclictest	0	-21	swapper/13	19:12:15	5
2479044	99	537	16,519	cyclictest	0	-21	swapper/2	21:43:14	8
2479044	99	536	13,522	cyclictest	0	-21	swapper/2	22:01:14	8
2479044	99	531	10,520	cyclictest	0	-21	swapper/2	19:37:15	8
2479068	99	517	0,0	cyclictest	0	-21	swapper/9	19:12:15	15
2479073	99	507	505,2	cyclictest	2600586	-21	kworker/10:1+i915-unordered	21:43:14	2
2479073	99	500	499,1	cyclictest	2692860	-21	kworker/10:0+i915-unordered	23:33:14	2
2479096	99	498	497,1	cyclictest	2499708	-21	kworker/15:2+i915-unordered	20:07:15	7
2479063	99	476	28,29	cyclictest	0	-21	swapper/7	19:25:59	13
2479063	99	476	28,28	cyclictest	0	-21	swapper/7	00:02:35	13
2479063	99	474	25,29	cyclictest	0	-21	swapper/7	23:06:00	13
2479084	99	473	24,30	cyclictest	0	-21	swapper/12	23:41:35	4
2479063	99	472	24,29	cyclictest	0	-21	swapper/7	23:59:58	13
2479096	99	470	469,1	cyclictest	2725264	-21	kworker/15:0+i915-unordered	00:13:14	7
2479096	99	470	469,1	cyclictest	2725264	-21	kworker/15:0+i915-unordered	00:13:14	7
2479084	99	470	22,29	cyclictest	0	-21	swapper/12	23:00:58	4
2479084	99	469	22,28	cyclictest	0	-21	swapper/12	21:36:58	4
2479084	99	469	21,446	cyclictest	0	-21	swapper/12	21:25:37	4
2479084	99	469	21,446	cyclictest	0	-21	swapper/12	21:25:37	4
2479084	99	468	20,29	cyclictest	0	-21	swapper/12	19:59:59	4
2479084	99	468	20,28	cyclictest	0	-21	swapper/12	22:42:35	4
2479073	99	466	25,29	cyclictest	0	-21	swapper/10	19:48:14	2
2479066	99	466	26,30	cyclictest	0	-21	swapper/8	20:08:14	14
2479084	99	465	19,30	cyclictest	0	-21	swapper/12	22:53:35	4
2479068	99	463	17,29	cyclictest	0	-21	swapper/9	22:10:38	15
2479068	99	463	11,30	cyclictest	0	-21	swapper/9	21:21:59	15
2479096	99	462	19,30	cyclictest	0	-21	swapper/15	20:31:14	7
2479096	99	462	18,29	cyclictest	0	-21	swapper/15	20:21:14	7
2479068	99	461	12,29	cyclictest	0	-21	swapper/9	20:40:38	15
2479073	99	460	459,1	cyclictest	2612460	-21	kworker/10:0+i915-unordered	22:01:14	2
2479068	99	460	2,457	cyclictest	0	-21	swapper/9	00:11:14	15
2479068	99	460	2,457	cyclictest	0	-21	swapper/9	00:11:14	15
2479068	99	460	12,30	cyclictest	0	-21	swapper/9	20:09:36	15
2479044	99	460	16,29	cyclictest	0	-21	swapper/2	00:05:10	8
2479068	99	459	9,30	cyclictest	0	-21	swapper/9	21:54:58	15
2479068	99	459	8,30	cyclictest	0	-21	swapper/9	00:26:36	15
2479084	99	458	9,30	cyclictest	0	-21	swapper/12	19:54:37	4
2479084	99	458	10,29	cyclictest	0	-21	swapper/12	22:31:36	4
2479068	99	458	8,30	cyclictest	0	-21	swapper/9	19:47:37	15
2479068	99	458	10,30	cyclictest	0	-21	swapper/9	22:49:58	15
2479068	99	457	8,29	cyclictest	0	-21	swapper/9	20:38:37	15
2479066	99	457	456,1	cyclictest	1818	-21	snmpd	21:33:11	14
2479066	99	457	456,1	cyclictest	1818	-21	snmpd	21:33:11	14
2479055	99	457	454,2	cyclictest	2709118	-21	kworker/5:0+events	23:52:57	11
2479084	99	456	8,29	cyclictest	0	-21	swapper/12	20:58:35	4
2479068	99	456	9,29	cyclictest	0	-21	swapper/9	21:42:37	15
2479068	99	456	9,29	cyclictest	0	-21	swapper/9	20:53:56	15
2479068	99	456	9,29	cyclictest	0	-21	swapper/9	20:32:36	15
2479068	99	456	9,27	cyclictest	0	-21	swapper/9	22:38:58	15
2479068	99	456	11,29	cyclictest	0	-21	swapper/9	00:23:36	15
2479051	99	456	455,1	cyclictest	2637490	-21	kworker/4:0+i915-unordered	22:34:14	10
2479068	99	455	6,30	cyclictest	0	-21	swapper/9	22:17:58	15
2479084	99	454	6,30	cyclictest	0	-21	swapper/12	20:15:37	4
2479073	99	454	454,0	cyclictest	2487700	-21	kworker/10:0+i915-unordered	19:37:15	2
2479058	99	452	451,1	cyclictest	1818	-21	snmpd	23:05:50	12
2479039	99	452	450,2	cyclictest	0	-21	swapper/1	19:18:15	1
2479058	99	451	448,3	cyclictest	1818	-21	snmpd	20:52:46	12
2479066	99	450	449,1	cyclictest	0	-21	swapper/8	19:13:15	14
2479063	99	450	0,29	cyclictest	0	-21	swapper/7	00:17:37	13
2479063	99	450	0,29	cyclictest	0	-21	swapper/7	00:17:37	13
2479068	99	449	1,447	cyclictest	0	-21	swapper/9	20:11:15	15
2479063	99	449	0,30	cyclictest	0	-21	swapper/7	00:31:59	13
2479063	99	449	0,29	cyclictest	0	-21	swapper/7	22:46:57	13
2479063	99	449	0,29	cyclictest	0	-21	swapper/7	20:07:37	13
2479084	99	448	0,30	cyclictest	0	-21	swapper/12	21:04:37	4
2479063	99	447	0,30	cyclictest	0	-21	swapper/7	23:01:56	13
2479044	99	447	25,421	cyclictest	0	-21	swapper/2	23:17:38	8
2479068	99	446	0,29	cyclictest	0	-21	swapper/9	20:03:37	15
2479063	99	446	25,418	cyclictest	0	-21	swapper/7	00:24:36	13
2479088	99	445	1,30	cyclictest	0	-21	swapper/13	22:07:14	5
2479081	99	445	442,2	cyclictest	2570982	-21	kworker/u64:10+events_unbound	21:45:37	3
2479063	99	445	24,419	cyclictest	0	-21	swapper/7	20:13:36	13
2479055	99	444	444,0	cyclictest	0	-21	swapper/5	21:33:11	11
2479055	99	444	444,0	cyclictest	0	-21	swapper/5	21:33:11	11
2479055	99	444	443,1	cyclictest	697	50	irq/159-i915	22:24:14	11
2479048	99	444	441,2	cyclictest	2570982	-21	kworker/u64:10+events_unbound	22:46:57	9
2479096	99	443	0,29	cyclictest	0	-21	swapper/15	22:12:14	7
2479084	99	443	441,1	cyclictest	2548175	-21	kworker/12:3+events_freezable_pwr_efficient	23:39:01	4
2479073	99	443	440,3	cyclictest	2659516	-21	kworker/u64:7+events_unbound	22:48:14	2
2479063	99	443	22,421	cyclictest	0	-21	swapper/7	21:37:58	13
2479044	99	443	23,419	cyclictest	0	-21	swapper/2	20:11:57	8
2479044	99	443	23,419	cyclictest	0	-21	swapper/2	20:04:00	8
2479044	99	443	22,420	cyclictest	0	-21	swapper/2	00:30:59	8
2479044	99	443	22,420	cyclictest	0	-21	swapper/2	00:06:58	8
2479044	99	443	21,421	cyclictest	0	-21	swapper/2	00:14:58	8
2479044	99	443	21,421	cyclictest	0	-21	swapper/2	00:14:58	8
2479055	99	442	441,1	cyclictest	697	50	irq/159-i915	23:33:14	11
2479055	99	442	439,2	cyclictest	2672856	-21	kworker/5:2+events	23:04:57	11
2479044	99	442	22,419	cyclictest	0	-21	swapper/2	22:26:57	8
2479044	99	442	21,421	cyclictest	0	-21	swapper/2	23:26:57	8
2479044	99	442	21,420	cyclictest	0	-21	swapper/2	21:53:36	8
2479044	99	442	20,421	cyclictest	0	-21	swapper/2	23:56:58	8
2479091	99	441	19,421	cyclictest	0	-21	swapper/14	22:50:36	6
2479088	99	441	439,2	cyclictest	0	-21	swapper/13	19:18:15	5
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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