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 May 03, 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
141936	99	576	22,553	cyclictest	0	-21	swapper/7	19:40:35	13
141963	99	566	15,29	cyclictest	0	-21	swapper/13	21:12:35	5
141936	99	554	31,522	cyclictest	0	-21	swapper/7	21:50:35	13
141914	99	543	542,1	cyclictest	186742	-21	kworker/1:0+i915-unordered	20:29:35	1
141922	99	541	17,523	cyclictest	0	-21	swapper/3	23:25:35	9
141930	99	534	0,534	cyclictest	0	-21	swapper/5	20:39:35	11
141948	99	527	4,521	cyclictest	0	-21	swapper/10	00:30:35	2
141930	99	526	65,15	cyclictest	0	-21	swapper/5	19:26:35	11
141930	99	526	65,15	cyclictest	0	-21	swapper/5	19:26:35	11
141930	99	521	516,3	cyclictest	235061	-21	kworker/5:1+i915-unordered	21:12:35	11
141954	99	520	518,2	cyclictest	343558	-21	kworker/11:2+i915-unordered	23:25:35	3
141936	99	516	10,505	cyclictest	0	-21	swapper/7	20:54:35	13
141936	99	512	11,499	cyclictest	0	-21	swapper/7	00:02:35	13
141954	99	508	506,2	cyclictest	0	-21	swapper/11	21:34:35	3
141917	99	507	506,1	cyclictest	387909	-21	kworker/2:2+i915-unordered	00:30:35	8
141972	99	503	502,1	cyclictest	154554	-21	kworker/15:1+i915-unordered	19:40:35	7
141972	99	487	486,1	cyclictest	260046	-21	kworker/15:1+i915-unordered	21:47:35	7
141922	99	487	487,0	cyclictest	259116	-21	kworker/3:2+i915-unordered	21:34:35	9
141917	99	486	486,0	cyclictest	300259	-21	kworker/2:2+i915-unordered	22:24:35	8
141911	99	486	22,461	cyclictest	0	-21	swapper/0	23:00:35	0
141972	99	485	483,2	cyclictest	370467	-21	kworker/15:2+i915-unordered	00:02:35	7
141917	99	484	483,1	cyclictest	0	-21	swapper/2	23:00:35	8
141972	99	482	480,2	cyclictest	260046	-21	kworker/15:1+i915-unordered	21:50:35	7
141936	99	477	477,0	cyclictest	291330	-21	kworker/7:0+i915-unordered	23:15:35	13
141911	99	477	14,463	cyclictest	0	-21	swapper/0	22:44:35	0
141948	99	475	27,28	cyclictest	0	-21	swapper/10	20:30:57	2
141948	99	475	25,29	cyclictest	0	-21	swapper/10	00:26:58	2
141948	99	474	473,1	cyclictest	323420	-21	kworker/10:2+i915-unordered	23:00:35	2
141940	99	473	28,29	cyclictest	0	-21	swapper/8	23:02:20	14
141940	99	468	25,30	cyclictest	0	-21	swapper/8	00:18:58	14
141914	99	467	18,30	cyclictest	0	-21	swapper/1	21:53:57	1
141959	99	466	19,28	cyclictest	0	-21	swapper/12	19:52:58	4
141959	99	465	18,28	cyclictest	0	-21	swapper/12	22:29:58	4
141940	99	465	21,29	cyclictest	0	-21	swapper/8	21:07:58	14
141917	99	465	464,1	cyclictest	0	-21	swapper/2	19:24:35	8
141917	99	465	464,1	cyclictest	0	-21	swapper/2	19:24:35	8
141914	99	464	15,28	cyclictest	0	-21	swapper/1	20:58:59	1
141914	99	460	11,30	cyclictest	0	-21	swapper/1	23:05:57	1
141914	99	460	10,30	cyclictest	0	-21	swapper/1	19:58:18	1
141914	99	459	7,448	cyclictest	0	-21	swapper/1	22:26:21	1
141948	99	458	6,29	cyclictest	0	-21	swapper/10	20:43:56	2
141930	99	458	19,30	cyclictest	0	-21	swapper/5	21:40:35	11
141914	99	458	9,30	cyclictest	0	-21	swapper/1	20:50:19	1
141930	99	457	456,1	cyclictest	0	-21	swapper/5	23:37:35	11
141911	99	457	455,2	cyclictest	0	-21	swapper/0	23:25:35	0
141940	99	456	2,58	cyclictest	0	-21	swapper/8	22:03:57	14
141940	99	456	2,58	cyclictest	0	-21	swapper/8	22:03:57	14
141914	99	456	9,28	cyclictest	0	-21	swapper/1	21:04:56	1
141972	99	455	397,29	cyclictest	0	-21	swapper/15	22:22:35	7
141914	99	455	7,29	cyclictest	0	-21	swapper/1	20:22:21	1
141936	99	454	453,1	cyclictest	0	-21	swapper/7	19:22:47	13
141936	99	454	453,1	cyclictest	0	-21	swapper/7	19:22:47	13
141936	99	454	449,4	cyclictest	1818	-21	snmpd	22:32:46	13
141911	99	453	452,1	cyclictest	0	-21	swapper/0	00:30:35	0
141940	99	452	12,28	cyclictest	0	-21	swapper/8	21:32:56	14
141936	99	452	1,450	cyclictest	0	-21	swapper/7	19:49:35	13
141917	99	452	450,2	cyclictest	0	-21	swapper/2	21:39:35	8
141940	99	451	9,29	cyclictest	0	-21	swapper/8	19:33:18	14
141948	99	450	0,30	cyclictest	0	-21	swapper/10	23:30:58	2
141948	99	449	0,29	cyclictest	0	-21	swapper/10	21:14:17	2
141948	99	449	0,29	cyclictest	0	-21	swapper/10	19:59:19	2
141940	99	449	0,30	cyclictest	0	-21	swapper/8	21:18:58	14
141940	99	449	0,30	cyclictest	0	-21	swapper/8	20:57:20	14
141959	99	448	0,30	cyclictest	0	-21	swapper/12	20:20:56	4
141948	99	448	0,30	cyclictest	0	-21	swapper/10	00:22:18	2
141948	99	448	0,29	cyclictest	0	-21	swapper/10	21:37:58	2
141959	99	447	0,444	cyclictest	0	-21	swapper/12	00:17:58	4
141944	99	447	445,2	cyclictest	315343	-21	kworker/9:0+i915-unordered	22:44:35	15
141930	99	447	0,28	cyclictest	0	-21	swapper/5	20:13:57	11
141914	99	447	1,29	cyclictest	0	-21	swapper/1	23:23:57	1
141911	99	447	445,2	cyclictest	0	-21	swapper/0	19:51:35	0
141963	99	446	24,421	cyclictest	0	-21	swapper/13	23:33:20	5
141940	99	446	7,29	cyclictest	0	-21	swapper/8	23:58:19	14
141963	99	445	26,418	cyclictest	0	-21	swapper/13	22:40:21	5
141963	99	445	23,421	cyclictest	0	-21	swapper/13	19:36:17	5
141940	99	445	26,418	cyclictest	0	-21	swapper/8	21:00:18	14
141936	99	445	25,417	cyclictest	0	-21	swapper/7	22:42:35	13
141936	99	445	24,420	cyclictest	0	-21	swapper/7	22:59:19	13
141911	99	445	444,1	cyclictest	0	-21	swapper/0	21:34:35	0
141972	99	444	444,0	cyclictest	218827	-21	kworker/15:0+i915-unordered	20:54:35	7
141940	99	444	3,30	cyclictest	0	-21	swapper/8	21:08:59	14
141925	99	444	443,1	cyclictest	0	-21	swapper/4	21:13:08	10
141954	99	443	0,29	cyclictest	0	-21	swapper/11	20:49:35	3
141940	99	443	26,416	cyclictest	0	-21	swapper/8	00:23:57	14
141940	99	443	25,417	cyclictest	0	-21	swapper/8	00:02:19	14
141936	99	443	23,417	cyclictest	0	-21	swapper/7	21:33:58	13
141936	99	443	22,418	cyclictest	0	-21	swapper/7	20:09:19	13
141936	99	443	21,421	cyclictest	0	-21	swapper/7	23:50:57	13
141930	99	443	4,29	cyclictest	0	-21	swapper/5	00:22:35	11
141940	99	442	26,415	cyclictest	0	-21	swapper/8	20:26:57	14
141936	99	442	21,420	cyclictest	0	-21	swapper/7	00:35:21	13
141914	99	442	22,419	cyclictest	0	-21	swapper/1	23:13:59	1
141914	99	442	21,418	cyclictest	0	-21	swapper/1	21:48:57	1
141963	99	441	18,421	cyclictest	0	-21	swapper/13	23:36:20	5
141963	99	440	20,419	cyclictest	0	-21	swapper/13	20:24:58	5
141963	99	440	19,419	cyclictest	0	-21	swapper/13	20:41:58	5
141963	99	440	19,419	cyclictest	0	-21	swapper/13	20:01:19	5
141963	99	440	18,420	cyclictest	0	-21	swapper/13	00:37:57	5
141936	99	440	19,420	cyclictest	0	-21	swapper/7	21:45:18	13
141930	99	440	23,30	cyclictest	0	-21	swapper/5	22:15:35	11
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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