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 Thu Dec 04, 2025 00:43:48)
Delayed (victim)					Switcher (culprit)			Timestamp	CPU
PID	Prio	Total latency (µs)	T^(,W^*) latency (µs)	Cmd	PID	Prio	Cmd	Timestamp	CPU
1664137	99	699	308,391	cyclictest	0	-21	swapper/15	19:15:25	7
1664094	99	535	534,1	cyclictest	1718533	-21	kworker/4:2+i915-unordered	20:12:25	10
1664127	99	534	44,489	cyclictest	0	-21	swapper/12	21:56:25	4
1664104	99	531	529,2	cyclictest	1940113	-21	kworker/7:2+i915-unordered	00:02:25	13
1664104	99	531	529,2	cyclictest	1768675	-21	kworker/7:0+i915-unordered	21:16:25	13
1664137	99	517	516,1	cyclictest	0	-21	swapper/15	00:02:25	7
1664137	99	517	486,31	cyclictest	0	-21	swapper/15	21:16:25	7
1664127	99	510	29,480	cyclictest	0	-21	swapper/12	19:58:25	4
1664127	99	510	29,480	cyclictest	0	-21	swapper/12	19:58:25	4
1664104	99	505	504,1	cyclictest	1919848	-21	kworker/7:0+i915-unordered	23:51:25	13
1664137	99	497	496,1	cyclictest	1861843	-21	kworker/15:0+i915-unordered	23:01:25	7
1664137	99	495	494,1	cyclictest	1927840	-21	kworker/15:0+i915-unordered	23:58:25	7
1664137	99	492	461,31	cyclictest	0	-21	swapper/15	23:51:25	7
1664104	99	479	478,1	cyclictest	0	-21	swapper/7	23:01:25	13
1664104	99	477	476,1	cyclictest	0	-21	swapper/7	23:58:25	13
1664094	99	468	468,0	cyclictest	1788302	-21	kworker/4:1+i915-unordered	21:56:25	10
1664077	99	467	466,1	cyclictest	0	-21	swapper/0	19:55:25	0
1664077	99	467	466,1	cyclictest	0	-21	swapper/0	19:55:25	0
1664089	99	466	5,460	cyclictest	0	-21	swapper/3	23:58:25	9
1664089	99	466	465,1	cyclictest	0	-21	swapper/3	22:31:25	9
1664089	99	466	465,1	cyclictest	0	-21	swapper/3	22:31:25	9
1664133	99	463	0,462	cyclictest	0	-21	swapper/14	21:57:36	6
1664127	99	462	20,29	cyclictest	0	-21	swapper/12	21:39:10	4
1664110	99	462	16,29	cyclictest	0	-21	swapper/9	00:33:47	15
1664080	99	461	0,3	cyclictest	0	-21	swapper/1	22:54:38	1
1664100	99	460	15,29	cyclictest	0	-21	swapper/6	22:38:47	12
1664100	99	460	15,29	cyclictest	0	-21	swapper/6	22:38:47	12
1664122	99	459	458,1	cyclictest	772	50	irq/159-i915	23:01:25	3
1664129	99	458	23,29	cyclictest	1735015	-21	kworker/13:0+i915-unordered	20:31:25	5
1664122	99	457	456,1	cyclictest	772	50	irq/159-i915	23:58:25	3
1664122	99	457	456,1	cyclictest	772	50	irq/159-i915	22:31:25	3
1664122	99	457	456,1	cyclictest	772	50	irq/159-i915	22:31:25	3
1664080	99	456	452,3	cyclictest	0	-21	swapper/1	22:04:57	1
1664100	99	451	19,29	cyclictest	0	-21	swapper/6	19:26:11	12
1664094	99	451	8,30	cyclictest	0	-21	swapper/4	21:53:25	10
1664100	99	450	20,28	cyclictest	0	-21	swapper/6	19:16:09	12
1664089	99	450	448,2	cyclictest	0	-21	swapper/3	23:51:25	9
1664129	99	448	446,1	cyclictest	1751448	-21	kworker/13:2+i915-unordered	20:53:25	5
1664096	99	448	447,1	cyclictest	772	50	irq/159-i915	22:21:25	11
1664122	99	447	444,2	cyclictest	1706266	-21	kworker/11:2+i915-unordered	20:14:46	3
1664137	99	445	21,29	cyclictest	0	-21	swapper/15	19:05:25	7
1664100	99	445	21,28	cyclictest	0	-21	swapper/6	19:20:48	12
1664094	99	445	444,1	cyclictest	1706312	-21	kworker/4:0+i915-unordered	19:58:25	10
1664094	99	445	444,1	cyclictest	1706312	-21	kworker/4:0+i915-unordered	19:58:25	10
1664077	99	445	443,2	cyclictest	0	-21	swapper/0	22:53:58	0
1664077	99	445	24,418	cyclictest	0	-21	swapper/0	23:15:09	0
1664129	99	444	22,421	cyclictest	0	-21	swapper/13	20:07:47	5
1664077	99	444	24,418	cyclictest	0	-21	swapper/0	22:56:09	0
1664127	99	443	24,418	cyclictest	0	-21	swapper/12	00:03:24	4
1664127	99	443	24,417	cyclictest	0	-21	swapper/12	19:39:48	4
1664096	99	442	441,1	cyclictest	772	50	irq/159-i915	21:16:25	11
1664077	99	442	21,421	cyclictest	0	-21	swapper/0	21:46:48	0
1664127	99	441	20,421	cyclictest	0	-21	swapper/12	22:36:47	4
1664127	99	441	20,421	cyclictest	0	-21	swapper/12	22:36:47	4
1664096	99	441	13,419	cyclictest	1869394	-21	smart_nvme0n1	22:34:47	11
1664096	99	441	13,419	cyclictest	1869394	-21	smart_nvme0n1	22:34:47	11
1664077	99	441	22,419	cyclictest	0	-21	swapper/0	23:30:09	0
1664133	99	440	21,416	cyclictest	0	-21	swapper/14	23:16:24	6
1664127	99	440	21,419	cyclictest	0	-21	swapper/12	19:53:09	4
1664127	99	440	20,420	cyclictest	0	-21	swapper/12	19:46:09	4
1664127	99	440	20,419	cyclictest	0	-21	swapper/12	20:21:48	4
1664127	99	440	19,419	cyclictest	0	-21	swapper/12	20:32:08	4
1664122	99	440	439,1	cyclictest	772	50	irq/159-i915	23:51:25	3
1664100	99	440	20,418	cyclictest	0	-21	swapper/6	19:35:09	12
1664100	99	439	18,418	cyclictest	0	-21	swapper/6	23:18:09	12
1664077	99	439	18,420	cyclictest	0	-21	swapper/0	21:33:08	0
1664077	99	439	17,419	cyclictest	0	-21	swapper/0	20:01:49	0
1664077	99	439	17,419	cyclictest	0	-21	swapper/0	20:01:49	0
1664133	99	438	19,418	cyclictest	0	-21	swapper/14	23:33:24	6
1664127	99	438	21,416	cyclictest	0	-21	swapper/12	00:10:24	4
1664110	99	438	432,3	cyclictest	3682525	-21	snmpd	22:54:38	15
1664108	99	438	20,417	cyclictest	0	-21	swapper/8	22:06:09	14
1664089	99	438	437,1	cyclictest	3682525	-21	snmpd	22:18:36	9
1664133	99	437	18,417	cyclictest	0	-21	swapper/14	20:57:25	6
1664122	99	437	436,1	cyclictest	0	-21	swapper/11	23:33:25	3
1664100	99	437	434,3	cyclictest	3682525	-21	snmpd	21:01:58	12
1664100	99	437	17,418	cyclictest	0	-21	swapper/6	22:40:48	12
1664100	99	437	17,418	cyclictest	0	-21	swapper/6	22:40:48	12
1664133	99	436	10,30	cyclictest	0	-21	swapper/14	19:23:25	6
1664129	99	436	18,416	cyclictest	0	-21	swapper/13	23:11:24	5
1664127	99	436	13,0	cyclictest	0	-21	swapper/12	22:26:09	4
1664110	99	436	16,419	cyclictest	0	-21	swapper/9	23:55:46	15
1664108	99	436	18,418	cyclictest	0	-21	swapper/8	23:59:10	14
1664100	99	436	21,412	cyclictest	0	-21	swapper/6	23:07:24	12
1664100	99	436	18,418	cyclictest	0	-21	swapper/6	22:56:24	12
1664100	99	436	18,418	cyclictest	0	-21	swapper/6	22:46:24	12
1664100	99	436	18,417	cyclictest	0	-21	swapper/6	20:56:25	12
1664096	99	436	435,1	cyclictest	772	50	irq/159-i915	19:55:25	11
1664096	99	436	435,1	cyclictest	772	50	irq/159-i915	19:55:25	11
1664077	99	436	23,413	cyclictest	0	-21	swapper/0	23:21:24	0
1664077	99	436	21,415	cyclictest	0	-21	swapper/0	21:40:25	0
1664127	99	435	15,420	cyclictest	0	-21	swapper/12	20:59:09	4
1664127	99	435	14,420	cyclictest	0	-21	swapper/12	19:38:47	4
1664110	99	435	15,419	cyclictest	0	-21	swapper/9	23:38:46	15
1664110	99	435	11,29	cyclictest	0	-21	swapper/9	20:49:20	15
1664108	99	435	17,417	cyclictest	0	-21	swapper/8	23:16:08	14
1664096	99	435	12,422	cyclictest	0	-21	swapper/5	21:29:47	11
1664077	99	435	12,418	cyclictest	0	-21	swapper/0	20:31:10	0
1664129	99	434	17,416	cyclictest	0	-21	swapper/13	21:25:25	5
1664127	99	434	13,418	cyclictest	0	-21	swapper/12	20:17:48	4
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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