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 May 25, 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
3465584	99	552	15,536	cyclictest	0	-21	swapper/0	20:15:55	0
3465607	99	524	12,0	cyclictest	0	-21	swapper/6	19:11:55	12
3465618	99	521	0,520	cyclictest	0	-21	swapper/9	23:33:55	15
3465637	99	516	514,2	cyclictest	3482390	-21	kworker/13:1+i915-unordered	19:28:55	5
3465646	99	509	506,2	cyclictest	3659476	-21	kworker/15:2+i915-unordered	23:18:55	7
3465584	99	504	3,0	cyclictest	0	-21	swapper/0	22:59:55	0
3465637	99	502	501,1	cyclictest	3514632	-21	kworker/13:0+i915-unordered	20:10:55	5
3465637	99	502	501,1	cyclictest	3514632	-21	kworker/13:0+i915-unordered	20:10:55	5
3465635	99	493	492,1	cyclictest	3399458	-21	kworker/12:2+i915-unordered	19:56:55	4
3465641	99	491	18,59	cyclictest	0	-21	swapper/14	19:20:55	6
3465641	99	488	486,2	cyclictest	3498537	-21	kworker/14:2+i915-unordered	21:16:55	6
3465635	99	488	486,1	cyclictest	3510467	-21	kworker/12:3+i915-unordered	20:53:55	4
3465584	99	488	487,1	cyclictest	0	-21	swapper/0	23:24:55	0
3465637	99	487	485,2	cyclictest	3440904	-21	kworker/13:1+i915-unordered	19:09:55	5
3465612	99	486	486,0	cyclictest	0	-21	swapper/7	23:29:55	13
3465612	99	485	483,2	cyclictest	0	-21	swapper/7	23:18:55	13
3465637	99	484	11,59	cyclictest	0	-21	swapper/13	23:14:54	5
3465635	99	484	483,1	cyclictest	3626328	-21	kworker/12:3+i915-unordered	22:44:55	4
3465614	99	475	474,1	cyclictest	3498519	-21	kworker/8:1+i915-unordered	20:15:55	14
3465612	99	474	27,28	cyclictest	0	-21	swapper/7	00:04:17	13
3465584	99	474	24,28	cyclictest	0	-21	swapper/0	22:26:38	0
3465646	99	472	471,1	cyclictest	0	-21	swapper/15	20:11:55	7
3465646	99	472	471,1	cyclictest	0	-21	swapper/15	20:11:55	7
3465623	99	472	23,447	cyclictest	0	-21	swapper/10	23:45:17	2
3465614	99	472	471,1	cyclictest	3655220	-21	kworker/8:0+i915-unordered	22:59:55	14
3465612	99	472	24,30	cyclictest	0	-21	swapper/7	23:01:17	13
3465612	99	472	21,29	cyclictest	0	-21	swapper/7	21:05:18	13
3465612	99	472	20,30	cyclictest	0	-21	swapper/7	23:09:18	13
3465623	99	471	22,30	cyclictest	0	-21	swapper/10	21:44:16	2
3465623	99	471	22,30	cyclictest	0	-21	swapper/10	19:38:40	2
3465612	99	471	22,30	cyclictest	0	-21	swapper/7	20:15:18	13
3465623	99	470	21,30	cyclictest	0	-21	swapper/10	23:35:17	2
3465612	99	470	21,30	cyclictest	0	-21	swapper/7	22:37:17	13
3465595	99	470	25,30	cyclictest	0	-21	swapper/3	00:14:54	9
3465635	99	469	24,29	cyclictest	0	-21	swapper/12	23:04:54	4
3465623	99	468	21,29	cyclictest	0	-21	swapper/10	21:52:38	2
3465612	99	468	19,30	cyclictest	0	-21	swapper/7	21:56:38	13
3465623	99	466	16,30	cyclictest	0	-21	swapper/10	23:10:40	2
3465588	99	466	464,2	cyclictest	3675318	-21	kworker/1:1+i915-unordered	23:33:55	1
3465623	99	465	5,459	cyclictest	0	-21	swapper/10	20:45:55	2
3465612	99	465	18,30	cyclictest	0	-21	swapper/7	20:32:39	13
3465637	99	462	18,29	cyclictest	0	-21	swapper/13	23:05:54	5
3465593	99	461	458,3	cyclictest	1818	-21	snmpd	22:31:52	8
3465641	99	459	18,29	cyclictest	0	-21	swapper/14	21:33:55	6
3465637	99	458	0,457	cyclictest	0	-21	swapper/13	22:54:55	5
3465637	99	458	0,457	cyclictest	0	-21	swapper/13	22:54:55	5
3465623	99	458	10,30	cyclictest	0	-21	swapper/10	23:06:39	2
3465637	99	457	14,30	cyclictest	0	-21	swapper/13	19:21:55	5
3465618	99	456	8,447	cyclictest	106	-21	ksoftirqd/9	22:25:55	15
3465618	99	454	6,447	cyclictest	106	-21	ksoftirqd/9	22:40:55	15
3465637	99	453	452,1	cyclictest	0	-21	swapper/13	20:15:55	5
3465599	99	452	0,3	cyclictest	0	-21	swapper/4	20:05:06	10
3465599	99	452	0,3	cyclictest	0	-21	swapper/4	20:05:06	10
3465593	99	452	450,1	cyclictest	0	-21	swapper/2	21:20:55	8
3465593	99	450	449,1	cyclictest	0	-21	swapper/2	23:29:55	8
3465584	99	450	6,443	cyclictest	3607222	-21	perf	22:07:50	0
3465637	99	449	448,1	cyclictest	0	-21	swapper/13	22:44:55	5
3465635	99	449	6,29	cyclictest	0	-21	swapper/12	23:30:54	4
3465588	99	449	0,448	cyclictest	0	-21	swapper/1	19:23:18	1
3465630	99	448	446,1	cyclictest	1818	-21	snmpd	20:05:06	3
3465630	99	448	446,1	cyclictest	1818	-21	snmpd	20:05:06	3
3465623	99	447	0,29	cyclictest	0	-21	swapper/10	23:51:15	2
3465584	99	447	25,421	cyclictest	0	-21	swapper/0	23:42:15	0
3465623	99	446	445,1	cyclictest	3574898	-21	kworker/10:1+pm	21:30:05	2
3465618	99	446	1,14	cyclictest	0	-21	swapper/9	23:38:17	15
3465595	99	445	0,30	cyclictest	0	-21	swapper/3	00:09:54	9
3465593	99	445	442,3	cyclictest	1818	-21	snmpd	20:45:55	8
3465641	99	444	1,30	cyclictest	0	-21	swapper/14	20:05:55	6
3465641	99	444	1,30	cyclictest	0	-21	swapper/14	20:05:55	6
3465637	99	444	52,391	cyclictest	0	-21	swapper/13	19:15:55	5
3465588	99	444	6,437	cyclictest	0	-21	swapper/1	20:37:50	1
3465637	99	443	442,1	cyclictest	0	-21	swapper/13	19:56:55	5
3465635	99	443	0,30	cyclictest	0	-21	swapper/12	23:26:54	4
3465584	99	443	21,418	cyclictest	0	-21	swapper/0	21:00:38	0
3465637	99	442	1,30	cyclictest	0	-21	swapper/13	20:29:55	5
3465623	99	442	23,417	cyclictest	0	-21	swapper/10	19:27:16	2
3465623	99	442	21,420	cyclictest	0	-21	swapper/10	19:55:16	2
3465641	99	441	3,29	cyclictest	0	-21	swapper/14	23:21:54	6
3465635	99	441	0,30	cyclictest	0	-21	swapper/12	00:00:54	4
3465623	99	441	438,2	cyclictest	1818	-21	snmpd	20:35:51	2
3465623	99	441	21,418	cyclictest	0	-21	swapper/10	00:30:38	2
3465614	99	441	440,1	cyclictest	3648096	-21	kworker/8:2+i915-unordered	23:24:55	14
3465607	99	441	3,29	cyclictest	0	-21	swapper/6	20:44:55	12
3465584	99	441	440,0	cyclictest	0	-21	swapper/0	21:53:16	0
3465637	99	440	439,1	cyclictest	0	-21	swapper/13	22:23:55	5
3465623	99	440	19,420	cyclictest	0	-21	swapper/10	21:59:39	2
3465641	99	439	438,1	cyclictest	0	-21	swapper/14	23:15:06	6
3465584	99	439	438,1	cyclictest	0	-21	swapper/0	23:43:17	0
3465646	99	438	21,417	cyclictest	0	-21	swapper/15	21:18:55	7
3465637	99	438	23,414	cyclictest	0	-21	swapper/13	22:14:55	5
3465635	99	438	23,414	cyclictest	0	-21	swapper/12	19:29:55	4
3465635	99	438	22,415	cyclictest	0	-21	swapper/12	23:49:54	4
3465584	99	438	18,417	cyclictest	0	-21	swapper/0	21:13:37	0
3465584	99	437	20,415	cyclictest	0	-21	swapper/0	21:19:55	0
3465637	99	436	435,1	cyclictest	0	-21	swapper/13	21:20:55	5
3465635	99	436	24,411	cyclictest	0	-21	swapper/12	22:48:54	4
3465635	99	436	24,411	cyclictest	0	-21	swapper/12	22:48:54	4
3465623	99	436	15,418	cyclictest	0	-21	swapper/10	21:41:17	2
3465603	99	436	18,417	cyclictest	0	-21	swapper/5	21:07:50	11
3465593	99	436	434,2	cyclictest	3683290	-21	kworker/2:0+pm	23:35:06	8
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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