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 Mon Jul 20, 2026 00:43:49)
Delayed (victim)					Switcher (culprit)			Timestamp	CPU
PID	Prio	Total latency (µs)	T^(,W^*) latency (µs)	Cmd	PID	Prio	Cmd	Timestamp	CPU
2889166	99	547	12,45	cyclictest	0	-21	swapper/1	20:28:09	1
2889166	99	547	12,45	cyclictest	0	-21	swapper/1	20:28:09	1
2889218	99	512	24,27	cyclictest	0	-21	swapper/14	20:47:09	6
2889174	99	503	501,2	cyclictest	2970375	-21	kworker/3:0+i915-unordered	20:47:09	9
2889218	99	494	9,484	cyclictest	151	-21	ksoftirqd/14	23:19:09	6
2889218	99	494	9,484	cyclictest	151	-21	ksoftirqd/14	23:19:09	6
2889218	99	491	2,488	cyclictest	151	-21	ksoftirqd/14	23:03:09	6
2889195	99	489	22,466	cyclictest	0	-21	swapper/9	20:07:09	15
2889166	99	483	481,1	cyclictest	3114988	-21	kworker/1:0+i915-unordered	00:18:09	1
2889218	99	480	479,1	cyclictest	3034468	-21	kworker/14:0+i915-unordered	22:03:09	6
2889218	99	479	11,467	cyclictest	151	-21	ksoftirqd/14	22:20:09	6
2889222	99	476	475,0	cyclictest	0	-21	swapper/15	22:04:09	7
2889180	99	473	0,54	cyclictest	0	-21	swapper/5	20:32:31	11
2889180	99	473	0,54	cyclictest	0	-21	swapper/5	20:32:31	11
2889222	99	469	469,0	cyclictest	3094778	-21	kworker/15:1+i915-unordered	23:19:09	7
2889222	99	469	469,0	cyclictest	3094778	-21	kworker/15:1+i915-unordered	23:19:09	7
2889218	99	468	29,438	cyclictest	0	-21	swapper/14	23:09:09	6
2889209	99	465	464,1	cyclictest	0	-21	swapper/12	19:34:09	4
2889180	99	465	18,29	cyclictest	0	-21	swapper/5	20:55:30	11
2889177	99	464	462,2	cyclictest	2872485	-21	kworker/4:6+i915-unordered	19:34:09	10
2889218	99	461	459,2	cyclictest	0	-21	swapper/14	21:29:09	6
2889189	99	461	460,1	cyclictest	0	-21	swapper/7	19:45:09	13
2889177	99	461	460,1	cyclictest	2998432	-21	kworker/4:2+i915-unordered	21:29:09	10
2889199	99	460	460,0	cyclictest	0	-21	swapper/10	20:41:53	2
2889199	99	459	11,30	cyclictest	0	-21	swapper/10	20:21:30	2
2889209	99	457	455,1	cyclictest	3082719	-21	kworker/12:1+i915-unordered	23:03:09	4
2889161	99	456	453,2	cyclictest	2823191	-21	kworker/0:7+events	23:32:32	0
2889202	99	454	28,425	cyclictest	124	-21	ksoftirqd/11	22:19:09	3
2889161	99	454	451,2	cyclictest	2840333	-21	kworker/0:0+events	22:12:32	0
2889199	99	453	11,30	cyclictest	0	-21	swapper/10	20:31:30	2
2889199	99	453	11,30	cyclictest	0	-21	swapper/10	20:31:30	2
2889177	99	453	453,0	cyclictest	0	-21	swapper/4	23:03:09	10
2889222	99	452	450,2	cyclictest	0	-21	swapper/15	00:30:09	7
2889222	99	451	450,1	cyclictest	0	-21	swapper/15	23:50:09	7
2889222	99	450	449,1	cyclictest	0	-21	swapper/15	00:22:09	7
2889195	99	450	0,30	cyclictest	0	-21	swapper/9	22:36:31	15
2889189	99	450	448,2	cyclictest	3147250	-21	kworker/7:0+i915-unordered	00:30:09	13
2889202	99	449	446,2	cyclictest	3018495	-21	kworker/11:1+pm	21:47:06	3
2889199	99	449	3,30	cyclictest	0	-21	swapper/10	21:26:30	2
2889189	99	449	448,1	cyclictest	3106838	-21	kworker/7:2+i915-unordered	23:50:09	13
2889189	99	449	447,2	cyclictest	3119152	-21	kworker/7:1+i915-unordered	00:22:09	13
2889180	99	449	21,29	cyclictest	0	-21	swapper/5	22:29:32	11
2889218	99	448	7,0	cyclictest	0	-21	swapper/14	19:34:09	6
2889195	99	447	25,421	cyclictest	0	-21	swapper/9	19:49:32	15
2889189	99	447	5,29	cyclictest	0	-21	swapper/7	23:19:09	13
2889189	99	447	5,29	cyclictest	0	-21	swapper/7	23:19:09	13
2889185	99	447	447,0	cyclictest	697	50	irq/159-i915	20:28:09	12
2889185	99	447	447,0	cyclictest	697	50	irq/159-i915	20:28:09	12
2889218	99	446	443,2	cyclictest	2954061	-21	kworker/u64:11+events_unbound	21:22:54	6
2889195	99	446	24,421	cyclictest	0	-21	swapper/9	23:23:53	15
2889195	99	446	24,421	cyclictest	0	-21	swapper/9	23:23:53	15
2889195	99	446	24,421	cyclictest	0	-21	swapper/9	19:43:51	15
2889195	99	446	0,29	cyclictest	0	-21	swapper/9	21:22:54	15
2889170	99	446	0,29	cyclictest	0	-21	swapper/2	21:14:53	8
2889218	99	444	443,1	cyclictest	1818	-21	snmpd	23:14:03	6
2889218	99	444	443,0	cyclictest	0	-21	swapper/14	19:50:32	6
2889202	99	444	23,420	cyclictest	0	-21	swapper/11	20:47:31	3
2889202	99	444	0,30	cyclictest	0	-21	swapper/11	20:39:09	3
2889202	99	444	0,30	cyclictest	0	-21	swapper/11	20:39:09	3
2889195	99	444	17,425	cyclictest	0	-21	swapper/9	20:27:52	15
2889195	99	444	17,425	cyclictest	0	-21	swapper/9	20:27:52	15
2889189	99	444	443,1	cyclictest	3033310	-21	kworker/7:2+i915-unordered	22:04:09	13
2889174	99	444	442,2	cyclictest	0	-21	swapper/3	21:27:09	9
2889222	99	443	443,0	cyclictest	0	-21	swapper/15	23:09:09	7
2889202	99	443	22,420	cyclictest	0	-21	swapper/11	20:59:53	3
2889199	99	443	24,417	cyclictest	0	-21	swapper/10	20:27:30	2
2889199	99	443	24,417	cyclictest	0	-21	swapper/10	20:27:30	2
2889191	99	443	1,28	cyclictest	0	-21	swapper/8	19:24:53	14
2889218	99	442	23,418	cyclictest	0	-21	swapper/14	20:20:31	6
2889199	99	442	24,416	cyclictest	0	-21	swapper/10	20:39:32	2
2889199	99	442	24,416	cyclictest	0	-21	swapper/10	20:39:32	2
2889199	99	442	22,419	cyclictest	0	-21	swapper/10	22:11:32	2
2889185	99	442	442,0	cyclictest	697	50	irq/159-i915	19:44:09	12
2889191	99	441	0,27	cyclictest	0	-21	swapper/8	23:00:54	14
2889166	99	441	24,30	cyclictest	0	-21	swapper/1	23:27:09	1
2889166	99	441	24,30	cyclictest	0	-21	swapper/1	23:27:09	1
2889195	99	440	19,420	cyclictest	0	-21	swapper/9	21:38:54	15
2889191	99	440	24,415	cyclictest	0	-21	swapper/8	23:03:52	14
2889166	99	440	440,0	cyclictest	2840207	-21	kworker/1:3+i915-unordered	20:07:09	1
2889166	99	440	20,30	cyclictest	0	-21	swapper/1	21:08:09	1
2889218	99	439	19,418	cyclictest	0	-21	swapper/14	20:25:53	6
2889191	99	439	25,413	cyclictest	0	-21	swapper/8	22:08:53	14
2889191	99	439	25,413	cyclictest	0	-21	swapper/8	22:00:53	14
2889191	99	439	24,414	cyclictest	0	-21	swapper/8	22:20:54	14
2889191	99	439	24,414	cyclictest	0	-21	swapper/8	20:45:54	14
2889195	99	438	17,419	cyclictest	0	-21	swapper/9	21:20:54	15
2889191	99	438	24,413	cyclictest	0	-21	swapper/8	22:47:55	14
2889174	99	438	17,420	cyclictest	0	-21	swapper/3	22:16:04	9
2889199	99	437	16,420	cyclictest	0	-21	swapper/10	19:31:33	2
2889199	99	437	16,417	cyclictest	0	-21	swapper/10	23:36:32	2
2889195	99	437	16,419	cyclictest	0	-21	swapper/9	22:55:30	15
2889191	99	437	22,414	cyclictest	0	-21	swapper/8	21:09:55	14
2889174	99	437	0,29	cyclictest	0	-21	swapper/3	20:27:09	9
2889174	99	437	0,29	cyclictest	0	-21	swapper/3	20:27:09	9
2889199	99	436	9,28	cyclictest	0	-21	swapper/10	22:26:32	2
2889191	99	436	22,413	cyclictest	0	-21	swapper/8	23:08:55	14
2889174	99	436	435,1	cyclictest	0	-21	swapper/3	23:32:32	9
2889199	99	435	9,30	cyclictest	0	-21	swapper/10	21:07:30	2
2889189	99	435	21,414	cyclictest	0	-21	swapper/7	23:45:09	13
2889185	99	435	22,413	cyclictest	0	-21	swapper/6	19:30:09	12
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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