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 Mar 17, 2026 00:43:41)
Delayed (victim)					Switcher (culprit)			Timestamp	CPU
PID	Prio	Total latency (µs)	T^(,W^*) latency (µs)	Cmd	PID	Prio	Cmd	Timestamp	CPU
914553	99	707	310,396	cyclictest	0	-21	swapper/7	20:02:49	13
914561	99	561	16,543	cyclictest	0	-21	swapper/9	23:12:49	15
914564	99	529	0,526	cyclictest	0	-21	swapper/10	21:34:49	2
914564	99	525	0,26	cyclictest	0	-21	swapper/10	21:45:49	2
914553	99	513	11,501	cyclictest	0	-21	swapper/7	00:19:09	13
914546	99	507	24,482	cyclictest	0	-21	swapper/5	23:28:05	11
914569	99	489	487,2	cyclictest	1046008	-21	kworker/11:0+i915-unordered	22:01:49	3
914569	99	486	1,44	cyclictest	0	-21	swapper/11	20:27:06	3
914569	99	485	483,2	cyclictest	1130748	-21	kworker/11:2+i915-unordered	23:24:49	3
914550	99	481	481,0	cyclictest	0	-21	swapper/6	20:25:49	12
914569	99	478	22,455	cyclictest	0	-21	swapper/11	00:08:30	3
914569	99	478	20,457	cyclictest	0	-21	swapper/11	20:30:49	3
914569	99	473	472,1	cyclictest	1065697	-21	kworker/11:2+i915-unordered	22:24:49	3
914569	99	473	472,1	cyclictest	1037583	-21	kworker/11:2+i915-unordered	21:51:49	3
914569	99	470	468,1	cyclictest	1103757	-21	kworker/11:2+i915-unordered	22:55:49	3
914569	99	470	468,1	cyclictest	1103757	-21	kworker/11:2+i915-unordered	22:55:49	3
914569	99	467	11,455	cyclictest	0	-21	swapper/11	19:12:49	3
914550	99	465	464,1	cyclictest	0	-21	swapper/6	20:51:49	12
914576	99	464	463,1	cyclictest	0	-21	swapper/12	23:25:49	4
914531	99	464	435,29	cyclictest	0	-21	swapper/1	20:30:49	1
914550	99	463	27,424	cyclictest	3687	-21	rtkit-daemon	19:50:35	12
914531	99	462	460,2	cyclictest	978290	-21	kworker/1:1+i915-unordered	20:27:06	1
914561	99	461	12,59	cyclictest	0	-21	swapper/9	22:59:12	15
914561	99	461	12,59	cyclictest	0	-21	swapper/9	22:59:12	15
914531	99	456	455,1	cyclictest	682076	-21	kworker/1:0+i915-unordered	19:12:49	1
914569	99	455	13,439	cyclictest	0	-21	swapper/11	20:02:49	3
914569	99	448	9,438	cyclictest	0	-21	swapper/11	21:36:49	3
914561	99	448	23,30	cyclictest	0	-21	swapper/9	00:22:48	15
914583	99	447	20,28	cyclictest	0	-21	swapper/14	19:37:11	6
914561	99	447	21,29	cyclictest	0	-21	swapper/9	23:39:49	15
914561	99	447	20,31	cyclictest	0	-21	swapper/9	22:34:32	15
914569	99	446	17,428	cyclictest	0	-21	swapper/11	00:19:09	3
914561	99	445	21,29	cyclictest	0	-21	swapper/9	20:34:12	15
914583	99	444	16,29	cyclictest	0	-21	swapper/14	23:54:11	6
914569	99	444	4,439	cyclictest	0	-21	swapper/11	22:16:49	3
914561	99	444	20,29	cyclictest	0	-21	swapper/9	22:49:34	15
914561	99	444	19,29	cyclictest	0	-21	swapper/9	19:42:49	15
914564	99	443	443,0	cyclictest	0	-21	swapper/10	19:29:49	2
914561	99	443	19,29	cyclictest	0	-21	swapper/9	22:02:35	15
914553	99	443	25,30	cyclictest	0	-21	swapper/7	20:41:49	13
914535	99	443	440,2	cyclictest	1037459	-21	kworker/2:1+i915-unordered	21:34:49	8
914561	99	442	19,29	cyclictest	0	-21	swapper/9	19:23:11	15
914561	99	442	18,29	cyclictest	0	-21	swapper/9	22:12:33	15
914561	99	442	17,29	cyclictest	0	-21	swapper/9	19:13:11	15
914564	99	441	0,3	cyclictest	0	-21	swapper/10	22:43:02	2
914561	99	441	17,29	cyclictest	0	-21	swapper/9	20:12:33	15
914561	99	441	17,29	cyclictest	0	-21	swapper/9	20:12:33	15
914561	99	441	16,30	cyclictest	0	-21	swapper/9	21:45:11	15
914561	99	441	15,30	cyclictest	0	-21	swapper/9	20:27:28	15
914561	99	441	15,29	cyclictest	0	-21	swapper/9	20:06:34	15
914561	99	441	15,29	cyclictest	0	-21	swapper/9	20:06:34	15
914561	99	441	15,28	cyclictest	0	-21	swapper/9	21:13:33	15
914576	99	440	0,3	cyclictest	0	-21	swapper/12	23:57:11	4
914576	99	440	0,3	cyclictest	0	-21	swapper/12	19:52:11	4
914561	99	440	18,29	cyclictest	0	-21	swapper/9	23:17:11	15
914561	99	440	17,29	cyclictest	0	-21	swapper/9	23:32:34	15
914561	99	440	16,29	cyclictest	0	-21	swapper/9	21:18:29	15
914561	99	440	15,30	cyclictest	0	-21	swapper/9	21:02:31	15
914561	99	440	15,29	cyclictest	0	-21	swapper/9	21:23:11	15
914543	99	440	22,29	cyclictest	0	-21	swapper/4	20:11:49	10
914543	99	440	22,29	cyclictest	0	-21	swapper/4	20:11:49	10
914576	99	439	439,0	cyclictest	0	-21	swapper/12	21:49:11	4
914553	99	439	19,30	cyclictest	0	-21	swapper/7	22:18:44	13
914550	99	439	437,1	cyclictest	1063054	-21	kworker/6:2+i915-unordered	22:17:11	12
914543	99	439	14,29	cyclictest	0	-21	swapper/4	00:18:42	10
914535	99	439	437,1	cyclictest	1016559	-21	kworker/2:0+i915-unordered	21:45:49	8
914576	99	438	0,437	cyclictest	0	-21	swapper/12	23:41:11	4
914564	99	438	20,31	cyclictest	0	-21	swapper/10	21:49:11	2
914546	99	437	12,30	cyclictest	0	-21	swapper/5	22:49:49	11
914539	99	437	12,30	cyclictest	0	-21	swapper/3	00:09:23	9
914569	99	436	435,1	cyclictest	0	-21	swapper/11	20:51:49	3
914569	99	436	11,29	cyclictest	0	-21	swapper/11	19:41:49	3
914561	99	436	12,30	cyclictest	0	-21	swapper/9	00:15:33	15
914558	99	436	433,2	cyclictest	1801	-21	snmpd	19:19:03	14
914543	99	436	434,2	cyclictest	1055471	-21	kworker/4:0+i915-unordered	23:25:49	10
914546	99	433	8,423	cyclictest	0	-21	swapper/5	21:14:49	11
914553	99	431	12,30	cyclictest	0	-21	swapper/7	00:15:48	13
914569	99	429	428,1	cyclictest	0	-21	swapper/11	20:11:49	3
914569	99	429	428,1	cyclictest	0	-21	swapper/11	20:11:49	3
914581	99	428	4,30	cyclictest	0	-21	swapper/13	20:59:01	5
914569	99	428	427,1	cyclictest	0	-21	swapper/11	23:12:49	3
914564	99	428	2,28	cyclictest	0	-21	swapper/10	23:56:49	2
914576	99	427	426,1	cyclictest	0	-21	swapper/12	22:53:11	4
914576	99	427	0,426	cyclictest	0	-21	swapper/12	19:29:49	4
914546	99	427	1,30	cyclictest	0	-21	swapper/5	20:49:49	11
914531	99	427	427,0	cyclictest	0	-21	swapper/1	21:25:49	1
914576	99	426	0,425	cyclictest	0	-21	swapper/12	20:39:49	4
914550	99	426	0,30	cyclictest	0	-21	swapper/6	00:10:49	12
914581	99	425	424,1	cyclictest	1126472	-21	kworker/13:2+i915-unordered	23:28:05	5
914576	99	425	425,0	cyclictest	1033272	-21	kworker/12:1+i915-unordered	21:59:49	4
914576	99	425	425,0	cyclictest	0	-21	swapper/12	23:21:49	4
914576	99	425	423,1	cyclictest	1155929	-21	kworker/12:2+i915-unordered	00:08:30	4
914564	99	425	1,29	cyclictest	0	-21	swapper/10	23:41:49	2
914553	99	425	421,3	cyclictest	1801	-21	snmpd	22:05:22	13
914550	99	425	424,1	cyclictest	1135726	-21	kworker/6:2+i915-unordered	23:29:11	12
914550	99	425	3,29	cyclictest	0	-21	swapper/6	00:07:49	12
914543	99	425	425,0	cyclictest	982855	-21	kworker/4:1+events	20:39:49	10
914586	99	424	25,398	cyclictest	0	-21	swapper/15	21:17:35	7
914569	99	424	422,2	cyclictest	0	-21	swapper/11	21:45:49	3
914564	99	424	25,398	cyclictest	0	-21	swapper/10	21:39:11	2
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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