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 Sat Jul 25, 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
3040428	99	726	307,418	cyclictest	0	-21	swapper/14	21:10:00	6
3040402	99	571	7,28	cyclictest	0	-21	swapper/8	19:18:00	14
3040372	99	506	0,505	cyclictest	0	-21	swapper/0	20:08:00	0
3040428	99	499	21,58	cyclictest	0	-21	swapper/14	21:14:21	6
3040433	99	498	19,59	cyclictest	0	-21	swapper/15	20:40:42	7
3040372	99	491	23,58	cyclictest	0	-21	swapper/0	23:15:55	0
3040433	99	489	488,1	cyclictest	0	-21	swapper/15	22:44:00	7
3040433	99	489	488,1	cyclictest	0	-21	swapper/15	22:44:00	7
3040405	99	485	484,0	cyclictest	3282482	-21	kworker/9:2+i915-unordered	00:17:00	15
3040397	99	485	482,2	cyclictest	3207969	-21	kworker/7:2+i915-unordered	22:44:00	13
3040397	99	485	482,2	cyclictest	3207969	-21	kworker/7:2+i915-unordered	22:44:00	13
3040383	99	485	21,461	cyclictest	0	-21	swapper/3	23:15:00	9
3040376	99	482	482,0	cyclictest	0	-21	swapper/1	00:17:00	1
3040383	99	481	22,459	cyclictest	0	-21	swapper/3	23:27:00	9
3040383	99	473	11,461	cyclictest	0	-21	swapper/3	20:08:00	9
3040433	99	472	21,30	cyclictest	0	-21	swapper/15	19:14:23	7
3040383	99	471	9,461	cyclictest	0	-21	swapper/3	20:34:00	9
3040383	99	471	28,29	cyclictest	0	-21	swapper/3	20:30:00	9
3040383	99	469	468,1	cyclictest	0	-21	swapper/3	20:37:00	9
3040391	99	466	19,29	cyclictest	0	-21	swapper/5	19:21:23	11
3040383	99	466	465,1	cyclictest	3294611	-21	kworker/3:0+i915-unordered	00:28:00	9
3040410	99	464	21,28	cyclictest	0	-21	swapper/10	00:17:59	2
3040383	99	464	462,1	cyclictest	3181961	-21	kworker/3:2+i915-unordered	22:05:00	9
3040383	99	463	462,1	cyclictest	3097350	-21	kworker/3:0+i915-unordered	20:23:00	9
3040425	99	462	461,1	cyclictest	3089349	-21	kworker/13:2+i915-unordered	20:34:00	5
3040391	99	462	14,446	cyclictest	0	-21	swapper/5	23:42:45	11
3040410	99	461	14,29	cyclictest	0	-21	swapper/10	22:50:55	2
3040391	99	461	14,30	cyclictest	0	-21	swapper/5	00:19:44	11
3040391	99	461	13,29	cyclictest	0	-21	swapper/5	23:17:22	11
3040391	99	461	13,29	cyclictest	0	-21	swapper/5	19:48:21	11
3040391	99	461	13,29	cyclictest	0	-21	swapper/5	19:48:21	11
3040391	99	461	12,29	cyclictest	0	-21	swapper/5	19:52:21	11
3040391	99	461	12,29	cyclictest	0	-21	swapper/5	19:52:21	11
3040410	99	460	21,30	cyclictest	0	-21	swapper/10	22:33:00	2
3040410	99	460	21,30	cyclictest	0	-21	swapper/10	22:33:00	2
3040391	99	460	15,28	cyclictest	0	-21	swapper/5	19:56:44	11
3040391	99	460	15,28	cyclictest	0	-21	swapper/5	19:56:44	11
3040391	99	460	14,29	cyclictest	0	-21	swapper/5	22:38:22	11
3040391	99	460	14,29	cyclictest	0	-21	swapper/5	22:38:22	11
3040391	99	460	12,28	cyclictest	0	-21	swapper/5	22:57:43	11
3040391	99	460	10,448	cyclictest	0	-21	swapper/5	22:07:44	11
3040425	99	459	458,1	cyclictest	3238014	-21	kworker/13:1+i915-unordered	23:15:00	5
3040410	99	459	15,30	cyclictest	0	-21	swapper/10	23:47:59	2
3040391	99	459	10,30	cyclictest	0	-21	swapper/5	19:29:23	11
3040420	99	458	457,1	cyclictest	1818	-21	snmpd	21:13:11	4
3040391	99	458	9,30	cyclictest	0	-21	swapper/5	20:49:22	11
3040391	99	458	9,29	cyclictest	0	-21	swapper/5	22:03:45	11
3040391	99	458	9,29	cyclictest	0	-21	swapper/5	20:29:23	11
3040391	99	458	15,28	cyclictest	0	-21	swapper/5	20:17:00	11
3040391	99	458	10,30	cyclictest	0	-21	swapper/5	20:37:21	11
3040391	99	457	8,447	cyclictest	0	-21	swapper/5	19:44:21	11
3040391	99	457	8,30	cyclictest	0	-21	swapper/5	20:45:22	11
3040391	99	456	7,30	cyclictest	0	-21	swapper/5	21:30:22	11
3040391	99	456	7,30	cyclictest	0	-21	swapper/5	00:32:42	11
3040383	99	456	454,1	cyclictest	3109484	-21	kworker/3:2+i915-unordered	21:22:00	9
3040410	99	455	10,29	cyclictest	0	-21	swapper/10	00:07:59	2
3040391	99	455	9,29	cyclictest	0	-21	swapper/5	20:55:22	11
3040372	99	455	454,1	cyclictest	2784288	-21	kworker/0:4+i915-unordered	19:18:00	0
3040386	99	453	453,0	cyclictest	0	-21	swapper/4	21:13:11	10
3040428	99	452	3,30	cyclictest	0	-21	swapper/14	19:45:22	6
3040402	99	452	11,441	cyclictest	0	-21	swapper/8	19:21:45	14
3040420	99	451	450,1	cyclictest	0	-21	swapper/12	00:26:52	4
3040417	99	451	450,1	cyclictest	697	50	irq/159-i915	23:15:00	3
3040405	99	451	448,2	cyclictest	3254118	-21	kworker/9:1+pm	23:52:33	15
3040397	99	451	450,1	cyclictest	0	-21	swapper/7	23:10:00	13
3040425	99	449	447,2	cyclictest	3077205	-21	kworker/13:0+i915-unordered	19:57:00	5
3040425	99	449	447,2	cyclictest	3077205	-21	kworker/13:0+i915-unordered	19:57:00	5
3040402	99	449	449,0	cyclictest	3093224	-21	kworker/8:0+i915-unordered	20:08:00	14
3040395	99	449	449,0	cyclictest	0	-21	swapper/6	19:33:21	12
3040386	99	448	446,2	cyclictest	1818	-21	snmpd	00:26:52	10
3040391	99	447	447,0	cyclictest	0	-21	swapper/5	23:08:11	11
3040372	99	447	445,2	cyclictest	1818	-21	snmpd	22:54:11	0
3040391	99	444	23,417	cyclictest	0	-21	swapper/5	22:26:23	11
3040383	99	444	0,31	cyclictest	0	-21	swapper/3	21:55:00	9
3040383	99	444	0,30	cyclictest	0	-21	swapper/3	19:30:00	9
3040391	99	443	24,416	cyclictest	0	-21	swapper/5	23:13:23	11
3040391	99	442	21,420	cyclictest	0	-21	swapper/5	23:26:22	11
3040372	99	442	23,418	cyclictest	0	-21	swapper/0	19:15:22	0
3040425	99	440	0,438	cyclictest	0	-21	swapper/13	19:09:58	5
3040391	99	440	20,419	cyclictest	0	-21	swapper/5	22:35:45	11
3040391	99	440	20,419	cyclictest	0	-21	swapper/5	22:35:45	11
3040433	99	439	20,30	cyclictest	0	-21	swapper/15	19:10:00	7
3040402	99	439	23,415	cyclictest	0	-21	swapper/8	21:51:23	14
3040433	99	437	436,1	cyclictest	0	-21	swapper/15	23:22:12	7
3040433	99	437	24,413	cyclictest	0	-21	swapper/15	23:29:59	7
3040428	99	437	21,415	cyclictest	0	-21	swapper/14	22:30:55	6
3040420	99	437	437,0	cyclictest	0	-21	swapper/12	20:33:00	4
3040397	99	437	21,415	cyclictest	0	-21	swapper/7	00:33:59	13
3040397	99	437	12,424	cyclictest	2978352	-21	kworker/7:2+i915-unordered	19:14:00	13
3040383	99	437	436,1	cyclictest	0	-21	swapper/3	22:44:00	9
3040383	99	437	436,1	cyclictest	0	-21	swapper/3	22:44:00	9
3040425	99	436	18,417	cyclictest	0	-21	swapper/13	19:17:00	5
3040417	99	436	436,0	cyclictest	697	50	irq/159-i915	20:08:00	3
3040417	99	436	22,413	cyclictest	0	-21	swapper/11	22:44:42	3
3040417	99	436	22,413	cyclictest	0	-21	swapper/11	22:44:42	3
3040417	99	436	21,414	cyclictest	0	-21	swapper/11	20:38:00	3
3040386	99	436	433,2	cyclictest	3097234	-21	kworker/u64:2+events_unbound	20:33:00	10
3040417	99	435	23,412	cyclictest	0	-21	swapper/11	19:22:00	3
3040383	99	435	432,3	cyclictest	0	-21	swapper/3	22:54:32	9
3040428	99	434	23,410	cyclictest	0	-21	swapper/14	21:05:00	6
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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