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 Wed Jul 22, 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
3085051	99	534	532,1	cyclictest	3133858	-21	kworker/3:2+i915-unordered	20:15:06	9
3085046	99	513	511,2	cyclictest	3081244	-21	kworker/2:1+i915-unordered	19:10:06	8
3085083	99	512	481,31	cyclictest	0	-21	swapper/11	20:15:06	3
3085046	99	511	510,1	cyclictest	3162009	-21	kworker/2:0+i915-unordered	20:54:05	8
3085040	99	502	23,474	cyclictest	0	-21	swapper/0	20:15:06	0
3085051	99	501	499,2	cyclictest	3214650	-21	kworker/3:1+i915-unordered	21:50:05	9
3085101	99	496	495,1	cyclictest	3214339	-21	kworker/15:1+i915-unordered	21:43:05	7
3085078	99	488	487,1	cyclictest	3166037	-21	kworker/10:0+i915-unordered	20:44:05	2
3085101	99	484	484,0	cyclictest	3343074	-21	kworker/15:0+i915-unordered	00:27:05	7
3085065	99	482	459,9	cyclictest	88	-21	ksoftirqd/7	00:27:05	13
3085083	99	479	449,30	cyclictest	0	-21	swapper/11	21:50:05	3
3085078	99	479	478,1	cyclictest	3217120	-21	kworker/10:0+i915-unordered	21:49:05	2
3085051	99	475	474,1	cyclictest	52	-21	ksoftirqd/3	21:52:05	9
3085042	99	470	469,1	cyclictest	0	-21	swapper/1	23:00:05	1
3085073	99	469	468,1	cyclictest	3222546	-21	kworker/9:1+i915-unordered	23:00:05	15
3085093	99	464	462,2	cyclictest	3314796	-21	kworker/13:1+i915-unordered	00:04:05	5
3085093	99	464	462,2	cyclictest	3314796	-21	kworker/13:1+i915-unordered	00:04:05	5
3085065	99	459	22,29	cyclictest	0	-21	swapper/7	00:16:01	13
3085078	99	456	12,30	cyclictest	0	-21	swapper/10	19:33:05	2
3085083	99	454	454,0	cyclictest	3206372	-21	kworker/11:1+i915-unordered	21:52:05	3
3085046	99	453	5,29	cyclictest	3085033	-21	cyclictest	22:43:26	8
3085046	99	453	4,30	cyclictest	0	-21	swapper/2	20:42:28	8
3085046	99	452	1,28	cyclictest	0	-21	swapper/2	00:03:27	8
3085046	99	452	1,28	cyclictest	0	-21	swapper/2	00:03:27	8
3085059	99	451	450,1	cyclictest	697	50	irq/159-i915	00:04:05	11
3085059	99	451	450,1	cyclictest	697	50	irq/159-i915	00:04:05	11
3085046	99	451	1,29	cyclictest	0	-21	swapper/2	21:49:26	8
3085093	99	450	449,1	cyclictest	3085033	-21	cyclictest	00:27:05	5
3085088	99	450	448,2	cyclictest	3142026	-21	kworker/12:2+i915-unordered	21:24:05	4
3085046	99	450	449,1	cyclictest	1818	-21	snmpd	23:27:17	8
3085051	99	449	0,448	cyclictest	0	-21	swapper/3	23:37:27	9
3085051	99	449	0,448	cyclictest	0	-21	swapper/3	20:25:27	9
3085046	99	448	0,29	cyclictest	0	-21	swapper/2	20:21:28	8
3085054	99	447	2,30	cyclictest	0	-21	swapper/4	23:13:05	10
3085040	99	447	0,0	cyclictest	0	-21	swapper/0	21:24:50	0
3085040	99	447	0,0	cyclictest	0	-21	swapper/0	19:14:28	0
3085078	99	445	0,28	cyclictest	0	-21	swapper/10	20:52:05	2
3085078	99	444	443,1	cyclictest	0	-21	swapper/10	19:10:06	2
3085073	99	444	441,2	cyclictest	3121957	-21	kworker/9:0+pm	19:57:17	15
3085065	99	444	442,2	cyclictest	3171024	-21	kworker/7:1+i915-unordered	21:12:05	13
3085065	99	444	442,2	cyclictest	3171024	-21	kworker/7:1+i915-unordered	21:12:05	13
3085046	99	444	23,420	cyclictest	0	-21	swapper/2	21:55:51	8
3085040	99	443	0,442	cyclictest	0	-21	swapper/0	22:54:50	0
3085040	99	443	0,442	cyclictest	0	-21	swapper/0	19:43:49	0
3085101	99	442	26,415	cyclictest	0	-21	swapper/15	19:39:05	7
3085093	99	442	442,0	cyclictest	0	-21	swapper/13	22:02:51	5
3085046	99	442	441,1	cyclictest	0	-21	swapper/2	22:33:05	8
3085042	99	442	442,0	cyclictest	0	-21	swapper/1	19:57:17	1
3085040	99	442	0,441	cyclictest	0	-21	swapper/0	23:51:52	0
3085040	99	442	0,441	cyclictest	0	-21	swapper/0	23:51:52	0
3085040	99	441	0,440	cyclictest	0	-21	swapper/0	20:34:28	0
3085101	99	440	439,1	cyclictest	0	-21	swapper/15	21:12:05	7
3085101	99	440	439,1	cyclictest	0	-21	swapper/15	21:12:05	7
3085078	99	440	1,29	cyclictest	0	-21	swapper/10	00:13:05	2
3085040	99	440	0,0	cyclictest	0	-21	swapper/0	22:23:50	0
3085040	99	440	0,0	cyclictest	0	-21	swapper/0	20:08:27	0
3085096	99	439	409,30	cyclictest	0	-21	swapper/14	23:33:05	6
3085088	99	439	437,1	cyclictest	0	-21	swapper/12	22:02:51	4
3085088	99	439	25,413	cyclictest	0	-21	swapper/12	21:18:05	4
3085078	99	439	0,29	cyclictest	0	-21	swapper/10	21:34:05	2
3085065	99	439	438,1	cyclictest	0	-21	swapper/7	21:43:05	13
3085101	99	438	22,415	cyclictest	0	-21	swapper/15	20:04:05	7
3085093	99	437	437,0	cyclictest	0	-21	swapper/13	22:18:51	5
3085083	99	436	21,414	cyclictest	0	-21	swapper/11	19:23:05	3
3085078	99	436	0,29	cyclictest	0	-21	swapper/10	21:14:05	2
3085078	99	436	0,29	cyclictest	0	-21	swapper/10	21:14:05	2
3085059	99	435	435,0	cyclictest	697	50	irq/159-i915	00:27:05	11
3085096	99	434	434,0	cyclictest	0	-21	swapper/14	21:08:05	6
3085096	99	434	434,0	cyclictest	0	-21	swapper/14	21:08:05	6
3085093	99	434	433,1	cyclictest	0	-21	swapper/13	23:37:27	5
3085088	99	434	432,1	cyclictest	0	-21	swapper/12	22:18:51	4
3085088	99	434	19,414	cyclictest	0	-21	swapper/12	23:12:05	4
3085083	99	434	431,2	cyclictest	3289580	-21	kworker/u64:10+events_unbound	23:37:27	3
3085070	99	434	433,1	cyclictest	697	50	irq/159-i915	23:00:05	14
3085046	99	434	434,0	cyclictest	0	-21	swapper/2	19:57:17	8
3085101	99	433	432,1	cyclictest	0	-21	swapper/15	20:13:06	7
3085083	99	433	430,2	cyclictest	3145194	-21	kworker/u64:10+events_unbound	20:25:27	3
3085083	99	433	19,413	cyclictest	0	-21	swapper/11	19:18:05	3
3085078	99	433	432,1	cyclictest	0	-21	swapper/10	19:15:06	2
3085063	99	433	432,1	cyclictest	3286891	-21	kworker/6:2+i915-unordered	23:33:05	12
3085059	99	433	430,2	cyclictest	3226404	-21	kworker/5:0+events	22:02:51	11
3085059	99	433	23,409	cyclictest	0	-21	swapper/5	22:23:05	11
3085096	99	432	432,0	cyclictest	0	-21	swapper/14	22:25:05	6
3085093	99	432	432,0	cyclictest	0	-21	swapper/13	20:25:27	5
3085083	99	432	18,414	cyclictest	0	-21	swapper/11	00:10:05	3
3085065	99	432	18,413	cyclictest	0	-21	swapper/7	21:57:05	13
3085065	99	432	17,0	cyclictest	0	-21	swapper/7	23:40:05	13
3085059	99	432	20,411	cyclictest	0	-21	swapper/5	00:25:05	11
3085054	99	432	13,418	cyclictest	0	-21	swapper/4	00:01:01	10
3085054	99	432	13,418	cyclictest	0	-21	swapper/4	00:01:01	10
3085046	99	432	10,421	cyclictest	0	-21	swapper/2	23:24:27	8
3085046	99	432	10,421	cyclictest	0	-21	swapper/2	00:08:27	8
3085088	99	431	17,413	cyclictest	0	-21	swapper/12	22:08:05	4
3085046	99	431	10,420	cyclictest	0	-21	swapper/2	19:22:27	8
3085040	99	428	427,1	cyclictest	0	-21	swapper/0	23:00:05	0
3085101	99	427	12,414	cyclictest	0	-21	swapper/15	21:40:05	7
3085059	99	427	424,2	cyclictest	3238499	-21	kworker/5:1+events	22:18:51	11
3085054	99	427	13,414	cyclictest	0	-21	swapper/4	00:22:05	10
3085046	99	427	7,417	cyclictest	0	-21	swapper/2	19:16:28	8
3085046	99	427	6,420	cyclictest	0	-21	swapper/2	00:00:47	8
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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