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 Dec 02, 2025 00:43:48)
Delayed (victim)					Switcher (culprit)			Timestamp	CPU
PID	Prio	Total latency (µs)	T^(,W^*) latency (µs)	Cmd	PID	Prio	Cmd	Timestamp	CPU
1492622	99	560	14,543	cyclictest	0	-21	swapper/11	22:36:28	3
1492617	99	529	7,520	cyclictest	0	-21	swapper/10	22:22:28	2
1492587	99	527	30,496	cyclictest	43	-21	ksoftirqd/2	19:20:29	8
1492622	99	520	20,496	cyclictest	0	-21	swapper/11	19:57:29	3
1492617	99	493	493,0	cyclictest	1498665	-21	kworker/10:0+i915-unordered	19:20:29	2
1492595	99	479	477,2	cyclictest	1694411	-21	kworker/4:0+i915-unordered	23:21:28	10
1492595	99	476	475,1	cyclictest	1612570	-21	kworker/4:1+i915-unordered	21:53:28	10
1492595	99	476	475,1	cyclictest	1612570	-21	kworker/4:1+i915-unordered	21:53:28	10
1492592	99	476	475,1	cyclictest	0	-21	swapper/3	20:05:29	9
1492636	99	471	23,29	cyclictest	0	-21	swapper/14	00:15:10	6
1492595	99	468	468,0	cyclictest	1694411	-21	kworker/4:0+i915-unordered	23:25:28	10
1492606	99	467	16,30	cyclictest	0	-21	swapper/7	22:59:14	13
1492592	99	465	18,28	cyclictest	0	-21	swapper/3	22:41:28	9
1492583	99	464	16,30	cyclictest	0	-21	swapper/1	21:59:51	1
1492629	99	463	462,1	cyclictest	0	-21	swapper/12	19:08:29	4
1492583	99	461	14,445	cyclictest	0	-21	swapper/1	23:20:13	1
1492592	99	460	0,459	cyclictest	0	-21	swapper/3	20:18:41	9
1492583	99	460	14,28	cyclictest	0	-21	swapper/1	21:51:51	1
1492583	99	460	14,28	cyclictest	0	-21	swapper/1	21:51:51	1
1492579	99	457	11,28	cyclictest	0	-21	swapper/0	20:40:12	0
1492583	99	455	9,28	cyclictest	0	-21	swapper/1	20:30:10	1
1492634	99	453	453,0	cyclictest	0	-21	swapper/13	21:53:50	5
1492634	99	453	453,0	cyclictest	0	-21	swapper/13	21:53:50	5
1492629	99	453	422,31	cyclictest	0	-21	swapper/12	23:21:28	4
1492629	99	452	451,0	cyclictest	0	-21	swapper/12	21:53:28	4
1492629	99	452	451,0	cyclictest	0	-21	swapper/12	21:53:28	4
1492592	99	452	450,2	cyclictest	1620735	-21	kworker/3:0+i915-unordered	22:36:28	9
1492595	99	451	449,2	cyclictest	1428085	-21	kworker/4:4+i915-unordered	19:08:29	10
1492634	99	449	26,30	cyclictest	0	-21	swapper/13	21:14:24	5
1492634	99	448	447,1	cyclictest	0	-21	swapper/13	00:06:50	5
1492622	99	448	442,5	cyclictest	3682525	-21	snmpd	22:55:23	3
1492587	99	448	26,421	cyclictest	0	-21	swapper/2	00:20:50	8
1492598	99	447	26,420	cyclictest	0	-21	swapper/5	23:27:51	11
1492587	99	446	24,422	cyclictest	0	-21	swapper/2	23:08:11	8
1492634	99	445	445,0	cyclictest	0	-21	swapper/13	21:21:52	5
1492617	99	445	0,26	cyclictest	0	-21	swapper/10	21:19:51	2
1492606	99	445	24,419	cyclictest	0	-21	swapper/7	20:56:51	13
1492598	99	445	24,420	cyclictest	0	-21	swapper/5	21:00:11	11
1492579	99	445	0,30	cyclictest	0	-21	swapper/0	22:31:13	0
1492629	99	444	444,0	cyclictest	0	-21	swapper/12	23:25:28	4
1492606	99	444	23,419	cyclictest	0	-21	swapper/7	21:01:52	13
1492606	99	444	22,419	cyclictest	0	-21	swapper/7	22:06:50	13
1492598	99	444	24,419	cyclictest	0	-21	swapper/5	00:01:11	11
1492598	99	444	23,421	cyclictest	0	-21	swapper/5	21:50:11	11
1492598	99	444	23,421	cyclictest	0	-21	swapper/5	21:50:11	11
1492595	99	444	444,0	cyclictest	0	-21	swapper/4	21:25:28	10
1492592	99	444	24,419	cyclictest	0	-21	swapper/3	21:11:28	9
1492587	99	444	25,419	cyclictest	0	-21	swapper/2	21:13:12	8
1492592	99	443	440,3	cyclictest	0	-21	swapper/3	21:27:03	9
1492587	99	443	23,419	cyclictest	0	-21	swapper/2	23:15:49	8
1492587	99	443	21,422	cyclictest	0	-21	swapper/2	21:20:15	8
1492587	99	443	20,422	cyclictest	0	-21	swapper/2	00:18:50	8
1492636	99	442	21,417	cyclictest	0	-21	swapper/14	20:48:14	6
1492617	99	442	17,29	cyclictest	0	-21	swapper/10	19:32:28	2
1492606	99	442	23,419	cyclictest	0	-21	swapper/7	20:53:50	13
1492592	99	442	23,418	cyclictest	0	-21	swapper/3	19:37:28	9
1492587	99	442	19,422	cyclictest	0	-21	swapper/2	23:12:50	8
1492587	99	442	19,422	cyclictest	0	-21	swapper/2	22:51:50	8
1492640	99	441	22,418	cyclictest	0	-21	swapper/15	23:41:28	7
1492622	99	441	21,420	cyclictest	0	-21	swapper/11	22:15:13	3
1492622	99	441	20,419	cyclictest	0	-21	swapper/11	23:01:51	3
1492613	99	441	439,2	cyclictest	1501649	-21	kworker/9:0+i915-unordered	19:15:29	15
1492606	99	441	21,418	cyclictest	0	-21	swapper/7	20:25:13	13
1492587	99	441	21,420	cyclictest	0	-21	swapper/2	00:10:51	8
1492587	99	441	21,419	cyclictest	0	-21	swapper/2	22:12:51	8
1492579	99	441	23,417	cyclictest	0	-21	swapper/0	23:48:50	0
1492640	99	440	439,1	cyclictest	0	-21	swapper/15	20:03:29	7
1492622	99	440	20,418	cyclictest	0	-21	swapper/11	22:10:51	3
1492606	99	440	18,420	cyclictest	0	-21	swapper/7	21:09:13	13
1492587	99	440	22,418	cyclictest	0	-21	swapper/2	22:47:51	8
1492587	99	440	20,419	cyclictest	0	-21	swapper/2	22:07:50	8
1492622	99	439	20,419	cyclictest	0	-21	swapper/11	00:17:11	3
1492622	99	439	20,418	cyclictest	0	-21	swapper/11	22:41:13	3
1492611	99	439	25,414	cyclictest	0	-21	swapper/8	21:25:15	14
1492606	99	439	19,420	cyclictest	0	-21	swapper/7	23:58:12	13
1492598	99	439	19,419	cyclictest	0	-21	swapper/5	20:09:13	11
1492592	99	439	438,1	cyclictest	1538477	-21	kworker/3:0+i915-unordered	19:57:29	9
1492592	99	439	436,2	cyclictest	1707432	-21	kworker/u64:3+events_unbound	23:30:28	9
1492592	99	439	19,419	cyclictest	0	-21	swapper/3	19:45:28	9
1492587	99	439	20,419	cyclictest	0	-21	swapper/2	22:35:15	8
1492587	99	439	19,420	cyclictest	0	-21	swapper/2	20:07:12	8
1492587	99	439	18,420	cyclictest	0	-21	swapper/2	23:03:12	8
1492629	99	438	437,1	cyclictest	1731545	-21	kworker/12:1+i915-unordered	00:05:28	4
1492622	99	438	19,419	cyclictest	0	-21	swapper/11	21:07:11	3
1492606	99	438	19,419	cyclictest	0	-21	swapper/7	21:53:13	13
1492606	99	438	19,419	cyclictest	0	-21	swapper/7	21:53:13	13
1492606	99	438	18,420	cyclictest	0	-21	swapper/7	21:57:12	13
1492606	99	438	17,419	cyclictest	0	-21	swapper/7	19:58:14	13
1492587	99	438	19,419	cyclictest	0	-21	swapper/2	21:59:13	8
1492587	99	438	19,419	cyclictest	0	-21	swapper/2	20:46:13	8
1492629	99	437	12,30	cyclictest	0	-21	swapper/12	20:41:28	4
1492611	99	437	24,413	cyclictest	0	-21	swapper/8	20:31:13	14
1492606	99	437	17,420	cyclictest	0	-21	swapper/7	22:12:13	13
1492598	99	437	18,419	cyclictest	0	-21	swapper/5	20:33:12	11
1492583	99	437	20,417	cyclictest	0	-21	swapper/1	21:47:50	1
1492583	99	437	20,417	cyclictest	0	-21	swapper/1	21:47:50	1
1492583	99	437	16,420	cyclictest	0	-21	swapper/1	23:53:50	1
1492611	99	436	22,414	cyclictest	0	-21	swapper/8	23:39:12	14
1492603	99	436	434,2	cyclictest	1650260	-21	kworker/6:0+i915-unordered	22:31:28	12
1492583	99	436	16,417	cyclictest	0	-21	swapper/1	21:14:50	1
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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