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 Dec 06, 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
1562508	99	721	300,418	cyclictest	0	-21	swapper/11	21:33:21	3
1562517	99	551	6,543	cyclictest	0	-21	swapper/13	20:08:21	5
1562517	99	551	6,543	cyclictest	0	-21	swapper/13	20:08:21	5
1562512	99	545	0,45	cyclictest	0	-21	swapper/12	19:50:21	4
1562475	99	537	14,521	cyclictest	0	-21	swapper/3	23:21:21	9
1562508	99	513	512,1	cyclictest	1764408	-21	kworker/11:2+i915-unordered	23:21:21	3
1562498	99	494	4,490	cyclictest	0	-21	swapper/9	00:06:21	15
1562486	99	488	487,1	cyclictest	1612396	-21	kworker/6:1+i915-unordered	20:05:21	12
1562486	99	488	487,1	cyclictest	1612396	-21	kworker/6:1+i915-unordered	20:05:21	12
1562520	99	486	485,1	cyclictest	1741689	-21	kworker/14:0+i915-unordered	22:50:21	6
1562520	99	486	485,1	cyclictest	1741689	-21	kworker/14:0+i915-unordered	22:50:21	6
1562486	99	486	457,29	cyclictest	0	-21	swapper/6	22:50:21	12
1562486	99	486	457,29	cyclictest	0	-21	swapper/6	22:50:21	12
1562471	99	473	25,28	cyclictest	0	-21	swapper/2	23:25:07	8
1562500	99	471	470,1	cyclictest	1686403	-21	kworker/10:0+i915-unordered	22:02:21	2
1562479	99	470	470,0	cyclictest	1813691	-21	kworker/4:2+i915-unordered	00:12:21	10
1562467	99	469	22,444	cyclictest	0	-21	swapper/1	22:46:21	1
1562467	99	469	22,444	cyclictest	0	-21	swapper/1	22:46:21	1
1562498	99	465	16,29	cyclictest	0	-21	swapper/9	21:39:44	15
1562500	99	464	462,2	cyclictest	1706974	-21	kworker/10:2+i915-unordered	22:06:21	2
1562494	99	461	23,28	cyclictest	0	-21	swapper/8	23:44:04	14
1562494	99	461	20,30	cyclictest	0	-21	swapper/8	22:40:08	14
1562494	99	461	20,30	cyclictest	0	-21	swapper/8	22:40:08	14
1562479	99	461	460,1	cyclictest	1600192	-21	kworker/4:0+i915-unordered	19:56:21	10
1562512	99	460	13,29	cyclictest	0	-21	swapper/12	22:37:03	4
1562520	99	456	455,1	cyclictest	0	-21	swapper/14	20:05:21	6
1562520	99	456	455,1	cyclictest	0	-21	swapper/14	20:05:21	6
1562465	99	456	453,0	cyclictest	0	-21	swapper/0	20:01:21	0
1562465	99	456	453,0	cyclictest	0	-21	swapper/0	20:01:21	0
1562508	99	455	7,30	cyclictest	0	-21	swapper/11	00:31:21	3
1562498	99	454	29,29	cyclictest	0	-21	swapper/9	22:42:21	15
1562498	99	454	29,29	cyclictest	0	-21	swapper/9	22:42:21	15
1562479	99	453	452,1	cyclictest	1508264	-21	kworker/4:1+i915-unordered	19:50:21	10
1562490	99	451	449,2	cyclictest	1813500	-21	kworker/7:0+i915-unordered	00:18:21	13
1562475	99	451	0,28	cyclictest	0	-21	swapper/3	20:23:44	9
1562512	99	450	0,30	cyclictest	0	-21	swapper/12	22:22:43	4
1562494	99	449	25,30	cyclictest	0	-21	swapper/8	23:30:04	14
1562520	99	447	445,2	cyclictest	1709708	-21	kworker/u64:4+events_unbound	22:21:21	6
1562486	99	447	0,447	cyclictest	0	-21	swapper/6	22:21:21	12
1562475	99	447	26,421	cyclictest	0	-21	swapper/3	23:30:44	9
1562465	99	446	445,1	cyclictest	0	-21	swapper/0	20:49:54	0
1562512	99	445	25,419	cyclictest	0	-21	swapper/12	23:36:43	4
1562479	99	444	443,1	cyclictest	0	-21	swapper/4	20:02:21	10
1562479	99	444	443,1	cyclictest	0	-21	swapper/4	20:02:21	10
1562467	99	444	20,29	cyclictest	0	-21	swapper/1	19:10:21	1
1562484	99	443	22,420	cyclictest	0	-21	swapper/5	22:54:43	11
1562471	99	443	23,420	cyclictest	0	-21	swapper/2	23:32:04	8
1562471	99	443	21,421	cyclictest	0	-21	swapper/2	23:01:43	8
1562467	99	443	25,418	cyclictest	0	-21	swapper/1	22:23:21	1
1562517	99	442	438,3	cyclictest	3682525	-21	snmpd	20:09:34	5
1562517	99	442	438,3	cyclictest	3682525	-21	snmpd	20:09:34	5
1562512	99	442	23,418	cyclictest	0	-21	swapper/12	20:36:44	4
1562484	99	442	22,419	cyclictest	0	-21	swapper/5	23:16:42	11
1562471	99	442	23,417	cyclictest	0	-21	swapper/2	23:06:43	8
1562471	99	442	21,419	cyclictest	0	-21	swapper/2	21:29:07	8
1562471	99	442	21,419	cyclictest	0	-21	swapper/2	21:12:04	8
1562512	99	441	24,416	cyclictest	0	-21	swapper/12	00:33:21	4
1562512	99	441	22,418	cyclictest	0	-21	swapper/12	23:06:03	4
1562512	99	441	21,419	cyclictest	0	-21	swapper/12	20:00:43	4
1562512	99	441	21,419	cyclictest	0	-21	swapper/12	20:00:43	4
1562498	99	441	24,416	cyclictest	0	-21	swapper/9	22:04:44	15
1562484	99	441	21,420	cyclictest	0	-21	swapper/5	20:16:05	11
1562484	99	441	20,420	cyclictest	0	-21	swapper/5	20:41:44	11
1562484	99	441	19,421	cyclictest	0	-21	swapper/5	21:58:06	11
1562475	99	441	20,420	cyclictest	0	-21	swapper/3	23:35:44	9
1562512	99	439	25,414	cyclictest	0	-21	swapper/12	00:12:21	4
1562498	99	439	22,417	cyclictest	0	-21	swapper/9	20:22:05	15
1562494	99	439	24,414	cyclictest	0	-21	swapper/8	21:42:03	14
1562484	99	439	20,418	cyclictest	0	-21	swapper/5	21:07:45	11
1562471	99	439	22,417	cyclictest	0	-21	swapper/2	22:02:44	8
1562498	99	438	17,420	cyclictest	0	-21	swapper/9	22:21:42	15
1562484	99	438	16,418	cyclictest	0	-21	swapper/5	00:19:44	11
1562475	99	438	18,419	cyclictest	0	-21	swapper/3	21:36:21	9
1562467	99	438	18,418	cyclictest	0	-21	swapper/1	00:02:44	1
1562467	99	438	17,421	cyclictest	0	-21	swapper/1	19:59:07	1
1562512	99	436	15,420	cyclictest	0	-21	swapper/12	20:28:44	4
1562512	99	436	15,420	cyclictest	0	-21	swapper/12	19:58:44	4
1562484	99	436	14,421	cyclictest	0	-21	swapper/5	21:01:42	11
1562475	99	436	14,419	cyclictest	0	-21	swapper/3	20:58:06	9
1562467	99	436	17,416	cyclictest	0	-21	swapper/1	23:47:21	1
1562517	99	435	16,418	cyclictest	0	-21	swapper/13	00:04:44	5
1562512	99	435	17,418	cyclictest	0	-21	swapper/12	23:41:03	4
1562508	99	435	17,415	cyclictest	0	-21	swapper/11	23:39:42	3
1562498	99	435	15,419	cyclictest	0	-21	swapper/9	23:03:42	15
1562484	99	435	15,418	cyclictest	0	-21	swapper/5	21:51:04	11
1562471	99	435	21,414	cyclictest	0	-21	swapper/2	21:32:21	8
1562471	99	435	14,419	cyclictest	0	-21	swapper/2	23:52:43	8
1562471	99	435	13,420	cyclictest	0	-21	swapper/2	23:58:43	8
1562467	99	435	15,418	cyclictest	0	-21	swapper/1	19:36:08	1
1562512	99	434	13,419	cyclictest	0	-21	swapper/12	23:19:43	4
1562512	99	434	12,421	cyclictest	0	-21	swapper/12	23:27:04	4
1562494	99	434	22,411	cyclictest	0	-21	swapper/8	22:31:03	14
1562484	99	434	12,422	cyclictest	0	-21	swapper/5	22:48:06	11
1562484	99	434	12,422	cyclictest	0	-21	swapper/5	22:48:06	11
1562484	99	434	12,421	cyclictest	0	-21	swapper/5	19:40:42	11
1562471	99	434	22,411	cyclictest	0	-21	swapper/2	21:37:21	8
1562471	99	434	12,420	cyclictest	0	-21	swapper/2	20:59:06	8
1562471	99	434	12,420	cyclictest	0	-21	swapper/2	20:10:43	8
1562471	99	434	12,420	cyclictest	0	-21	swapper/2	20:10:43	8
1562517	99	433	431,1	cyclictest	1732363	-21	kworker/13:1+i915-unordered	22:29:43	5
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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