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 13, 2026 00:43:48)
Delayed (victim)					Switcher (culprit)			Timestamp	CPU
PID	Prio	Total latency (µs)	T^(,W^*) latency (µs)	Cmd	PID	Prio	Cmd	Timestamp	CPU
2684868	99	635	635,0	cyclictest	0	-21	swapper/2	19:28:22	8
2684915	99	500	470,30	cyclictest	0	-21	swapper/14	20:05:22	6
2684913	99	500	497,3	cyclictest	0	-21	swapper/13	23:08:22	5
2684868	99	490	488,2	cyclictest	0	-21	swapper/2	00:00:22	8
2684894	99	483	482,1	cyclictest	2923368	-21	kworker/9:1+i915-unordered	23:53:22	15
2684915	99	475	20,58	cyclictest	0	-21	swapper/14	20:45:45	6
2684876	99	464	21,30	cyclictest	0	-21	swapper/4	20:52:22	10
2684913	99	462	1,458	cyclictest	0	-21	swapper/13	23:43:22	5
2684887	99	462	461,0	cyclictest	2755808	-21	kworker/7:1+i915-unordered	20:42:22	13
2684863	99	461	459,2	cyclictest	2857519	-21	kworker/1:3+i915-unordered	22:24:22	1
2684863	99	461	459,2	cyclictest	2857519	-21	kworker/1:3+i915-unordered	22:24:22	1
2684915	99	459	18,30	cyclictest	0	-21	swapper/14	20:28:22	6
2684900	99	454	453,1	cyclictest	2918683	-21	kworker/10:1+i915-unordered	23:27:22	2
2684880	99	454	453,1	cyclictest	2875248	-21	kworker/5:1+i915-unordered	23:08:22	11
2684863	99	451	450,1	cyclictest	0	-21	swapper/1	23:53:22	1
2684915	99	450	22,30	cyclictest	0	-21	swapper/14	20:24:45	6
2684871	99	449	448,1	cyclictest	697	50	irq/159-i915	19:20:22	9
2684920	99	448	3,28	cyclictest	0	-21	swapper/15	21:32:45	7
2684920	99	447	29,417	cyclictest	0	-21	swapper/15	21:09:45	7
2684915	99	447	4,30	cyclictest	0	-21	swapper/14	21:15:22	6
2684915	99	447	20,29	cyclictest	0	-21	swapper/14	19:25:44	6
2684915	99	447	18,30	cyclictest	0	-21	swapper/14	21:43:45	6
2684920	99	446	25,30	cyclictest	0	-21	swapper/15	19:27:22	7
2684913	99	446	444,2	cyclictest	2892459	-21	kworker/13:3+i915-unordered	23:12:22	5
2684904	99	446	444,1	cyclictest	2657790	-21	kworker/11:2+i915-unordered	19:20:22	3
2684871	99	445	442,2	cyclictest	697	50	irq/159-i915	00:15:22	9
2684920	99	444	5,29	cyclictest	0	-21	swapper/15	20:42:22	7
2684920	99	444	25,418	cyclictest	0	-21	swapper/15	20:48:08	7
2684915	99	443	18,29	cyclictest	0	-21	swapper/14	20:35:45	6
2684909	99	443	443,0	cyclictest	0	-21	swapper/12	23:00:43	4
2684868	99	443	21,419	cyclictest	0	-21	swapper/2	21:16:45	8
2684880	99	442	7,59	cyclictest	0	-21	swapper/5	21:39:22	11
2684868	99	442	22,419	cyclictest	0	-21	swapper/2	19:48:45	8
2684909	99	440	25,414	cyclictest	0	-21	swapper/12	20:53:22	4
2684887	99	440	20,29	cyclictest	0	-21	swapper/7	00:24:22	13
2684920	99	439	15,29	cyclictest	0	-21	swapper/15	22:17:07	7
2684904	99	439	438,1	cyclictest	0	-21	swapper/11	00:15:22	3
2684882	99	439	20,419	cyclictest	0	-21	swapper/6	20:31:45	12
2684920	99	438	18,418	cyclictest	0	-21	swapper/15	20:36:06	7
2684871	99	438	436,1	cyclictest	2660711	-21	kworker/u64:13+events_unbound	20:05:22	9
2684909	99	437	23,414	cyclictest	0	-21	swapper/12	19:59:22	4
2684868	99	436	16,418	cyclictest	0	-21	swapper/2	20:37:45	8
2684920	99	433	14,418	cyclictest	0	-21	swapper/15	23:26:44	7
2684909	99	433	433,0	cyclictest	0	-21	swapper/12	23:53:43	4
2684904	99	433	432,1	cyclictest	0	-21	swapper/11	20:05:22	3
2684887	99	433	427,5	cyclictest	1818	-21	snmpd	22:45:17	13
2684880	99	433	432,1	cyclictest	0	-21	swapper/5	23:00:43	11
2684871	99	433	433,0	cyclictest	697	50	irq/159-i915	22:44:22	9
2684871	99	433	433,0	cyclictest	697	50	irq/159-i915	00:00:22	9
2684915	99	432	10,30	cyclictest	0	-21	swapper/14	23:23:22	6
2684894	99	432	430,2	cyclictest	0	-21	swapper/9	22:24:22	15
2684894	99	432	430,2	cyclictest	0	-21	swapper/9	22:24:22	15
2684880	99	432	430,1	cyclictest	2905641	-21	kworker/5:2+i915-unordered	23:43:22	11
2684861	99	432	6,30	cyclictest	0	-21	swapper/0	23:52:45	0
2684904	99	430	429,1	cyclictest	2848378	-21	kworker/11:1+i915-unordered	22:44:22	3
2684904	99	430	429,1	cyclictest	0	-21	swapper/11	00:00:22	3
2684920	99	428	9,29	cyclictest	0	-21	swapper/15	19:14:22	7
2684913	99	428	424,3	cyclictest	1818	-21	snmpd	22:18:34	5
2684882	99	428	11,416	cyclictest	0	-21	swapper/6	20:43:44	12
2684882	99	428	11,416	cyclictest	0	-21	swapper/6	20:40:06	12
2684882	99	428	10,417	cyclictest	0	-21	swapper/6	20:20:45	12
2684920	99	426	8,416	cyclictest	0	-21	swapper/15	20:04:45	7
2684909	99	426	426,0	cyclictest	0	-21	swapper/12	22:28:43	4
2684909	99	426	426,0	cyclictest	0	-21	swapper/12	22:28:43	4
2684876	99	426	6,30	cyclictest	0	-21	swapper/4	23:28:22	10
2684868	99	426	15,410	cyclictest	0	-21	swapper/2	21:24:22	8
2684920	99	425	29,395	cyclictest	0	-21	swapper/15	23:00:43	7
2684920	99	425	27,397	cyclictest	0	-21	swapper/15	23:14:45	7
2684920	99	425	0,28	cyclictest	0	-21	swapper/15	00:28:44	7
2684900	99	425	422,2	cyclictest	2706292	-21	kworker/u64:8+events_unbound	19:37:44	2
2684900	99	425	422,2	cyclictest	2706292	-21	kworker/u64:8+events_unbound	19:37:44	2
2684882	99	425	423,2	cyclictest	0	-21	swapper/6	20:02:22	12
2684880	99	425	9,29	cyclictest	0	-21	swapper/5	00:13:22	11
2684868	99	425	0,29	cyclictest	0	-21	swapper/2	21:11:46	8
2684894	99	424	422,2	cyclictest	2742535	-21	kworker/u64:1+events_unbound	20:10:22	15
2684868	99	424	25,398	cyclictest	0	-21	swapper/2	21:28:44	8
2684920	99	423	6,28	cyclictest	0	-21	swapper/15	23:45:22	7
2684920	99	423	26,396	cyclictest	0	-21	swapper/15	19:39:45	7
2684920	99	423	26,396	cyclictest	0	-21	swapper/15	19:39:45	7
2684909	99	423	422,1	cyclictest	0	-21	swapper/12	23:48:43	4
2684868	99	423	26,396	cyclictest	0	-21	swapper/2	23:41:44	8
2684868	99	423	26,396	cyclictest	0	-21	swapper/2	22:29:45	8
2684868	99	423	26,396	cyclictest	0	-21	swapper/2	22:29:45	8
2684868	99	423	26,396	cyclictest	0	-21	swapper/2	19:19:07	8
2684880	99	422	5,30	cyclictest	0	-21	swapper/5	23:12:22	11
2684868	99	422	25,396	cyclictest	0	-21	swapper/2	21:00:06	8
2684868	99	422	25,396	cyclictest	0	-21	swapper/2	19:44:45	8
2684868	99	422	25,396	cyclictest	0	-21	swapper/2	19:44:45	8
2684868	99	422	25,396	cyclictest	0	-21	swapper/2	00:19:06	8
2684861	99	422	23,395	cyclictest	0	-21	swapper/0	20:46:46	0
2684868	99	421	24,396	cyclictest	0	-21	swapper/2	22:02:45	8
2684863	99	421	420,1	cyclictest	0	-21	swapper/1	20:10:22	1
2684868	99	420	24,395	cyclictest	0	-21	swapper/2	19:41:07	8
2684868	99	420	24,395	cyclictest	0	-21	swapper/2	19:41:07	8
2684868	99	420	24,395	cyclictest	0	-21	swapper/2	00:07:44	8
2684868	99	420	23,396	cyclictest	0	-21	swapper/2	23:04:08	8
2684868	99	420	23,396	cyclictest	0	-21	swapper/2	00:34:45	8
2684861	99	420	419,1	cyclictest	0	-21	swapper/0	21:30:22	0
2684920	99	419	0,417	cyclictest	0	-21	swapper/15	21:55:07	7
2684876	99	419	416,2	cyclictest	2870851	-21	kworker/4:0+events	23:00:43	10
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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