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 Fri Dec 12, 2025 00:43:47)
Delayed (victim)					Switcher (culprit)			Timestamp	CPU
PID	Prio	Total latency (µs)	T^(,W^*) latency (µs)	Cmd	PID	Prio	Cmd	Timestamp	CPU
1711542	99	715	319,395	cyclictest	0	-21	swapper/15	21:06:10	7
1711536	99	536	13,520	cyclictest	0	-21	swapper/13	20:42:10	5
1711520	99	535	20,514	cyclictest	0	-21	swapper/10	19:26:10	2
1711527	99	509	50,30	cyclictest	1876367	-21	kworker/11:0+i915-unordered	22:38:10	3
1711527	99	509	50,30	cyclictest	1876367	-21	kworker/11:0+i915-unordered	22:38:10	3
1711539	99	494	493,1	cyclictest	0	-21	swapper/14	21:00:10	6
1711539	99	489	487,2	cyclictest	1690440	-21	kworker/14:2+i915-unordered	19:16:10	6
1711503	99	487	486,1	cyclictest	1872247	-21	kworker/5:1+i915-unordered	23:27:10	11
1711503	99	486	456,30	cyclictest	0	-21	swapper/5	00:11:10	11
1711490	99	482	481,1	cyclictest	1942919	-21	kworker/2:2+i915-unordered	23:56:10	8
1711509	99	477	477,0	cyclictest	0	-21	swapper/7	00:17:10	13
1711536	99	474	50,423	cyclictest	0	-21	swapper/13	23:25:53	5
1711536	99	474	25,29	cyclictest	0	-21	swapper/13	21:33:54	5
1711536	99	473	24,28	cyclictest	0	-21	swapper/13	20:50:33	5
1711490	99	473	472,1	cyclictest	1896942	-21	kworker/2:0+i915-unordered	22:50:10	8
1711520	99	470	20,30	cyclictest	0	-21	swapper/10	21:36:10	2
1711520	99	469	18,29	cyclictest	0	-21	swapper/10	21:10:33	2
1711527	99	468	21,30	cyclictest	0	-21	swapper/11	23:23:10	3
1711527	99	465	18,445	cyclictest	0	-21	swapper/11	19:55:10	3
1711513	99	462	0,3	cyclictest	0	-21	swapper/8	20:11:22	14
1711509	99	459	457,2	cyclictest	0	-21	swapper/7	19:17:10	13
1711503	99	459	457,2	cyclictest	1631601	-21	kworker/5:4+i915-unordered	20:42:10	11
1711495	99	459	458,1	cyclictest	772	50	irq/159-i915	22:25:10	9
1711495	99	458	457,1	cyclictest	772	50	irq/159-i915	23:30:10	9
1711495	99	458	457,1	cyclictest	772	50	irq/159-i915	20:13:10	9
1711536	99	456	13,28	cyclictest	0	-21	swapper/13	19:40:10	5
1711536	99	454	6,30	cyclictest	0	-21	swapper/13	22:45:55	5
1711495	99	452	452,0	cyclictest	772	50	irq/159-i915	21:46:10	9
1711536	99	451	22,425	cyclictest	0	-21	swapper/13	19:44:33	5
1711536	99	451	22,425	cyclictest	0	-21	swapper/13	19:44:33	5
1711536	99	450	33,417	cyclictest	0	-21	swapper/13	23:56:52	5
1711542	99	449	447,2	cyclictest	1715406	-21	kworker/15:0+i915-unordered	19:17:10	7
1711542	99	449	446,2	cyclictest	1970851	-21	kworker/15:2+events	00:17:52	7
1711509	99	449	448,1	cyclictest	1698545	-21	kworker/7:2+i915-unordered	19:06:10	13
1711520	99	447	26,420	cyclictest	0	-21	swapper/10	00:01:31	2
1711527	99	446	444,2	cyclictest	1872191	-21	kworker/11:2+i915-unordered	22:25:10	3
1711484	99	446	23,422	cyclictest	0	-21	swapper/0	00:29:32	0
1711542	99	445	441,3	cyclictest	3682525	-21	snmpd	21:54:44	7
1711536	99	445	24,420	cyclictest	0	-21	swapper/13	20:44:54	5
1711527	99	445	443,2	cyclictest	1929851	-21	kworker/11:2+i915-unordered	23:30:10	3
1711527	99	445	443,2	cyclictest	1765468	-21	kworker/11:1+i915-unordered	20:13:10	3
1711503	99	445	445,0	cyclictest	0	-21	swapper/5	22:11:10	11
1711484	99	445	2,30	cyclictest	0	-21	swapper/0	23:58:52	0
1711536	99	444	22,420	cyclictest	0	-21	swapper/13	21:50:55	5
1711536	99	443	22,420	cyclictest	0	-21	swapper/13	20:12:33	5
1711495	99	443	442,1	cyclictest	772	50	irq/159-i915	22:38:10	9
1711495	99	443	442,1	cyclictest	772	50	irq/159-i915	22:38:10	9
1711490	99	443	439,3	cyclictest	3682525	-21	snmpd	21:21:03	8
1711536	99	442	21,420	cyclictest	0	-21	swapper/13	22:58:55	5
1711513	99	442	23,418	cyclictest	0	-21	swapper/8	23:02:54	14
1711506	99	442	24,417	cyclictest	0	-21	swapper/6	00:08:09	12
1711536	99	441	22,419	cyclictest	0	-21	swapper/13	23:31:54	5
1711520	99	441	19,419	cyclictest	0	-21	swapper/10	20:35:31	2
1711517	99	441	440,1	cyclictest	0	-21	swapper/9	21:21:03	15
1711520	99	440	25,414	cyclictest	0	-21	swapper/10	21:33:10	2
1711484	99	440	23,29	cyclictest	0	-21	swapper/0	00:05:53	0
1711536	99	439	438,1	cyclictest	1781978	-21	kworker/13:1+pm	20:31:44	5
1711536	99	439	21,417	cyclictest	0	-21	swapper/13	19:49:33	5
1711536	99	439	21,417	cyclictest	0	-21	swapper/13	19:49:33	5
1711527	99	439	438,1	cyclictest	1831265	-21	kworker/11:1+i915-unordered	21:46:10	3
1711509	99	439	16,422	cyclictest	0	-21	swapper/7	22:14:34	13
1711495	99	439	439,0	cyclictest	772	50	irq/159-i915	21:50:10	9
1711542	99	438	16,422	cyclictest	0	-21	swapper/15	23:42:09	7
1711536	99	437	23,413	cyclictest	0	-21	swapper/13	23:10:10	5
1711520	99	437	17,420	cyclictest	0	-21	swapper/10	20:19:53	2
1711520	99	437	14,420	cyclictest	0	-21	swapper/10	00:06:52	2
1711520	99	436	16,420	cyclictest	0	-21	swapper/10	23:37:55	2
1711520	99	436	14,422	cyclictest	0	-21	swapper/10	21:16:54	2
1711495	99	436	435,1	cyclictest	772	50	irq/159-i915	20:37:10	9
1711490	99	436	14,421	cyclictest	0	-21	swapper/2	22:39:05	8
1711490	99	436	14,421	cyclictest	0	-21	swapper/2	22:39:05	8
1711509	99	434	433,1	cyclictest	0	-21	swapper/7	21:19:31	13
1711506	99	434	20,412	cyclictest	0	-21	swapper/6	00:26:09	12
1711495	99	434	433,1	cyclictest	772	50	irq/159-i915	20:32:10	9
1711495	99	434	431,2	cyclictest	3682525	-21	snmpd	22:17:44	9
1711495	99	433	432,1	cyclictest	772	50	irq/159-i915	23:36:10	9
1711539	99	432	12,419	cyclictest	0	-21	swapper/14	00:15:09	6
1711509	99	431	14,417	cyclictest	0	-21	swapper/7	23:41:09	13
1711484	99	431	11,416	cyclictest	0	-21	swapper/0	21:30:33	0
1711539	99	429	11,417	cyclictest	0	-21	swapper/14	00:32:09	6
1711536	99	429	8,418	cyclictest	0	-21	swapper/13	20:06:33	5
1711513	99	429	11,417	cyclictest	0	-21	swapper/8	22:08:10	14
1711503	99	429	9,419	cyclictest	0	-21	swapper/5	22:18:10	11
1711495	99	429	429,0	cyclictest	772	50	irq/159-i915	22:06:10	9
1711539	99	428	6,421	cyclictest	0	-21	swapper/14	23:09:31	6
1711527	99	428	426,1	cyclictest	1831265	-21	kworker/11:1+i915-unordered	21:50:10	3
1711509	99	428	7,420	cyclictest	0	-21	swapper/7	20:03:54	13
1711495	99	428	428,0	cyclictest	772	50	irq/159-i915	23:00:10	9
1711490	99	428	426,1	cyclictest	1834036	-21	kworker/2:2+pm	21:54:44	8
1711539	99	427	5,421	cyclictest	0	-21	swapper/14	21:08:33	6
1711509	99	427	4,422	cyclictest	0	-21	swapper/7	23:21:33	13
1711520	99	426	5,0	cyclictest	0	-21	swapper/10	19:37:34	2
1711495	99	426	425,1	cyclictest	772	50	irq/159-i915	22:21:10	9
1711539	99	425	4,420	cyclictest	0	-21	swapper/14	00:25:31	6
1711539	99	425	424,1	cyclictest	0	-21	swapper/14	20:25:10	6
1711509	99	425	4,421	cyclictest	0	-21	swapper/7	23:05:33	13
1711495	99	425	424,1	cyclictest	772	50	irq/159-i915	21:37:10	9
1711495	99	425	11,413	cyclictest	0	-21	swapper/3	20:05:10	9
1711490	99	425	7,418	cyclictest	0	-21	swapper/2	22:45:32	8
1711539	99	424	2,421	cyclictest	0	-21	swapper/14	21:49:34	6
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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