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 Sun Jun 14, 2026 00:43:47)
Delayed (victim)					Switcher (culprit)			Timestamp	CPU
PID	Prio	Total latency (µs)	T^(,W^*) latency (µs)	Cmd	PID	Prio	Cmd	Timestamp	CPU
3438961	99	692	691,1	cyclictest	0	-21	swapper/4	19:41:39	10
3438948	99	492	490,2	cyclictest	3683511	-21	kworker/1:2+i915-unordered	00:09:17	1
3438980	99	490	489,1	cyclictest	0	-21	swapper/9	00:09:17	15
3438980	99	479	478,1	cyclictest	3547379	-21	kworker/9:0+i915-unordered	21:30:17	15
3438982	99	478	1,476	cyclictest	0	-21	swapper/10	20:13:17	2
3438957	99	476	476,0	cyclictest	0	-21	swapper/3	22:00:17	9
3438980	99	475	473,2	cyclictest	3640478	-21	kworker/9:1+i915-unordered	22:59:17	15
3438964	99	474	23,30	cyclictest	0	-21	swapper/5	20:43:02	11
3438948	99	473	24,29	cyclictest	0	-21	swapper/1	23:15:39	1
3438982	99	472	470,2	cyclictest	3576762	-21	kworker/10:1+i915-unordered	22:11:17	2
3438964	99	472	24,29	cyclictest	0	-21	swapper/5	21:16:41	11
3438948	99	472	25,30	cyclictest	0	-21	swapper/1	20:37:02	1
3438952	99	471	470,1	cyclictest	697	50	irq/159-i915	20:13:17	8
3438944	99	471	25,29	cyclictest	0	-21	swapper/0	21:00:40	0
3438968	99	470	21,29	cyclictest	0	-21	swapper/6	23:46:01	12
3438964	99	470	21,30	cyclictest	0	-21	swapper/5	19:39:02	11
3438964	99	469	22,29	cyclictest	0	-21	swapper/5	21:10:02	11
3438964	99	469	19,30	cyclictest	0	-21	swapper/5	21:51:01	11
3438964	99	469	19,30	cyclictest	0	-21	swapper/5	21:51:01	11
3438964	99	468	20,29	cyclictest	0	-21	swapper/5	20:23:02	11
3438964	99	468	20,28	cyclictest	0	-21	swapper/5	21:03:39	11
3438968	99	467	14,30	cyclictest	0	-21	swapper/6	19:38:39	12
3438964	99	467	23,28	cyclictest	0	-21	swapper/5	23:40:39	11
3438964	99	467	20,29	cyclictest	0	-21	swapper/5	22:23:03	11
3438968	99	466	14,30	cyclictest	0	-21	swapper/6	21:15:38	12
3438964	99	466	19,28	cyclictest	0	-21	swapper/5	20:03:02	11
3438961	99	466	21,30	cyclictest	0	-21	swapper/4	21:01:40	10
3438961	99	466	20,30	cyclictest	0	-21	swapper/4	22:00:01	10
3438952	99	465	464,1	cyclictest	697	50	irq/159-i915	22:11:17	8
3438990	99	464	464,0	cyclictest	3589228	-21	kworker/11:2+i915-unordered	22:00:17	3
3438982	99	464	3,460	cyclictest	0	-21	swapper/10	22:00:17	2
3438980	99	464	463,1	cyclictest	0	-21	swapper/9	23:53:17	15
3438968	99	464	17,29	cyclictest	0	-21	swapper/6	22:14:39	12
3438999	99	463	461,2	cyclictest	3490570	-21	kworker/13:1+i915-unordered	20:13:17	5
3438968	99	463	14,28	cyclictest	0	-21	swapper/6	22:35:40	12
3438980	99	462	0,3	cyclictest	0	-21	swapper/9	22:51:00	15
3438964	99	461	14,29	cyclictest	0	-21	swapper/5	19:51:40	11
3438980	99	459	0,458	cyclictest	0	-21	swapper/9	19:17:41	15
3438952	99	457	457,0	cyclictest	697	50	irq/159-i915	22:00:17	8
3438994	99	455	425,30	cyclictest	0	-21	swapper/12	20:16:17	4
3438982	99	455	454,1	cyclictest	3568104	-21	kworker/10:2+i915-unordered	21:39:17	2
3438980	99	453	452,1	cyclictest	3688071	-21	kworker/9:1+i915-unordered	00:16:17	15
3438957	99	450	449,0	cyclictest	3640646	-21	kworker/3:1+i915-unordered	23:04:17	9
3438999	99	449	447,2	cyclictest	3538189	-21	kworker/13:0+i915-unordered	21:05:17	5
3438964	99	449	5,28	cyclictest	0	-21	swapper/5	22:54:01	11
3438961	99	449	0,30	cyclictest	0	-21	swapper/4	20:38:02	10
3438952	99	449	448,1	cyclictest	697	50	irq/159-i915	21:39:17	8
3438982	99	448	448,0	cyclictest	0	-21	swapper/10	20:36:17	2
3438982	99	448	446,1	cyclictest	3632304	-21	kworker/10:0+i915-unordered	22:55:17	2
3438964	99	448	0,28	cyclictest	0	-21	swapper/5	20:55:02	11
3438948	99	448	1,29	cyclictest	0	-21	swapper/1	22:48:39	1
3438944	99	448	25,29	cyclictest	0	-21	swapper/0	23:32:01	0
3438944	99	448	24,29	cyclictest	0	-21	swapper/0	23:52:01	0
3438964	99	447	0,30	cyclictest	0	-21	swapper/5	23:13:02	11
3438964	99	447	0,28	cyclictest	0	-21	swapper/5	23:30:00	11
3438944	99	447	4,29	cyclictest	3545274	-21	ntpq	21:07:40	0
3438982	99	446	443,2	cyclictest	3606369	-21	kworker/10:2+i915-unordered	22:24:17	2
3438944	99	446	0,30	cyclictest	0	-21	swapper/0	23:58:38	0
3438944	99	446	0,30	cyclictest	0	-21	swapper/0	23:40:00	0
3438957	99	445	445,0	cyclictest	0	-21	swapper/3	19:56:17	9
3438968	99	444	21,419	cyclictest	0	-21	swapper/6	19:34:01	12
3438980	99	443	2,29	cyclictest	0	-21	swapper/9	23:14:17	15
3438964	99	443	24,417	cyclictest	0	-21	swapper/5	22:03:00	11
3438961	99	443	23,418	cyclictest	0	-21	swapper/4	21:40:39	10
3438952	99	443	442,1	cyclictest	697	50	irq/159-i915	20:36:17	8
3438982	99	442	440,2	cyclictest	3627920	-21	kworker/10:2+i915-unordered	22:50:17	2
3438982	99	442	439,2	cyclictest	3478078	-21	kworker/10:0+i915-unordered	20:30:17	2
3438961	99	442	23,417	cyclictest	0	-21	swapper/4	20:52:01	10
3438994	99	441	440,1	cyclictest	0	-21	swapper/12	20:36:17	4
3438968	99	441	20,418	cyclictest	0	-21	swapper/6	20:51:01	12
3438964	99	441	21,419	cyclictest	0	-21	swapper/5	22:45:02	11
3438952	99	441	440,1	cyclictest	697	50	irq/159-i915	22:55:17	8
3438944	99	441	23,418	cyclictest	0	-21	swapper/0	23:27:02	0
3438944	99	441	23,417	cyclictest	0	-21	swapper/0	21:21:39	0
3438980	99	440	19,418	cyclictest	3669432	-21	ntpq	23:32:39	15
3438968	99	440	19,417	cyclictest	0	-21	swapper/6	19:21:38	12
3438968	99	440	13,29	cyclictest	0	-21	swapper/6	22:18:40	12
3438964	99	440	19,418	cyclictest	0	-21	swapper/5	20:13:39	11
3438948	99	440	20,418	cyclictest	0	-21	swapper/1	19:17:40	1
3438968	99	439	17,418	cyclictest	0	-21	swapper/6	23:24:38	12
3438990	99	438	438,0	cyclictest	0	-21	swapper/11	23:04:17	3
3438968	99	438	18,417	cyclictest	0	-21	swapper/6	00:14:01	12
3438964	99	438	19,418	cyclictest	0	-21	swapper/5	20:35:01	11
3438952	99	438	437,1	cyclictest	697	50	irq/159-i915	22:24:17	8
3438948	99	438	9,30	cyclictest	0	-21	swapper/1	23:51:39	1
3438944	99	438	20,417	cyclictest	0	-21	swapper/0	21:33:39	0
3438944	99	438	20,417	cyclictest	0	-21	swapper/0	20:11:39	0
3438982	99	437	436,1	cyclictest	0	-21	swapper/10	21:10:17	2
3438980	99	437	22,415	cyclictest	0	-21	swapper/9	22:06:17	15
3438968	99	437	17,417	cyclictest	0	-21	swapper/6	23:07:02	12
3438968	99	437	13,0	cyclictest	0	-21	swapper/6	22:51:38	12
3438961	99	437	435,1	cyclictest	3490854	-21	kworker/4:1+i915-unordered	20:16:17	10
3438968	99	436	15,418	cyclictest	0	-21	swapper/6	20:21:39	12
3438968	99	436	14,421	cyclictest	0	-21	swapper/6	20:14:39	12
3438982	99	435	433,2	cyclictest	0	-21	swapper/10	21:05:17	2
3438976	99	435	432,3	cyclictest	1818	-21	snmpd	19:16:51	14
3438952	99	435	434,1	cyclictest	697	50	irq/159-i915	22:50:17	8
3438990	99	434	20,413	cyclictest	0	-21	swapper/11	20:09:17	3
3438952	99	434	433,1	cyclictest	697	50	irq/159-i915	20:30:17	8
3438944	99	434	433,1	cyclictest	0	-21	swapper/0	00:32:40	0
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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