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 Sat Nov 15, 2025 00:43:47)
Delayed (victim)					Switcher (culprit)			Timestamp	CPU
PID	Prio	Total latency (µs)	T^(,W^*) latency (µs)	Cmd	PID	Prio	Cmd	Timestamp	CPU
1689920	99	547	24,522	cyclictest	0	-21	swapper/2	21:18:00	8
1689974	99	530	528,2	cyclictest	1698936	-21	kworker/15:0+i915-unordered	19:33:00	7
1689920	99	526	4,521	cyclictest	0	-21	swapper/2	20:36:00	8
1689920	99	526	4,521	cyclictest	0	-21	swapper/2	20:36:00	8
1689920	99	526	3,521	cyclictest	0	-21	swapper/2	21:12:00	8
1689916	99	525	3,521	cyclictest	0	-21	swapper/1	19:51:00	1
1689923	99	524	523,1	cyclictest	1913166	-21	kworker/3:1+i915-unordered	23:42:00	9
1689920	99	522	0,520	cyclictest	0	-21	swapper/2	00:23:00	8
1689963	99	520	31,488	cyclictest	0	-21	swapper/12	00:18:00	4
1689920	99	508	506,2	cyclictest	1789128	-21	kworker/2:1+i915-unordered	21:04:00	8
1689952	99	502	501,1	cyclictest	1793242	-21	kworker/10:1+i915-unordered	21:12:00	2
1689952	99	501	500,1	cyclictest	1764634	-21	kworker/10:2+i915-unordered	20:36:00	2
1689952	99	501	500,1	cyclictest	1764634	-21	kworker/10:2+i915-unordered	20:36:00	2
1689932	99	499	499,0	cyclictest	1842624	-21	kworker/5:0+i915-unordered	22:14:00	11
1689952	99	497	496,1	cyclictest	1936833	-21	kworker/10:2+i915-unordered	00:23:00	2
1689923	99	495	3,491	cyclictest	0	-21	swapper/3	19:54:00	9
1689952	99	493	491,1	cyclictest	1793242	-21	kworker/10:1+i915-unordered	21:18:00	2
1689940	99	490	489,1	cyclictest	0	-21	swapper/7	19:33:00	13
1689927	99	479	479,0	cyclictest	1937085	-21	kworker/4:0+i915-unordered	00:18:00	10
1689966	99	475	24,30	cyclictest	0	-21	swapper/13	20:10:24	5
1689966	99	469	22,445	cyclictest	0	-21	swapper/13	23:41:00	5
1689935	99	468	467,1	cyclictest	772	50	irq/159-i915	22:01:00	12
1689923	99	466	19,28	cyclictest	0	-21	swapper/3	20:09:00	9
1689920	99	465	14,29	cyclictest	0	-21	swapper/2	23:24:00	8
1689920	99	465	14,29	cyclictest	0	-21	swapper/2	23:24:00	8
1689969	99	464	463,1	cyclictest	0	-21	swapper/14	22:48:00	6
1689969	99	464	463,1	cyclictest	0	-21	swapper/14	20:29:00	6
1689969	99	464	463,1	cyclictest	0	-21	swapper/14	20:29:00	6
1689969	99	464	16,30	cyclictest	0	-21	swapper/14	23:32:00	6
1689952	99	464	463,1	cyclictest	1707910	-21	kworker/10:1+i915-unordered	19:49:00	2
1689927	99	464	18,444	cyclictest	0	-21	swapper/4	20:49:00	10
1689935	99	461	460,1	cyclictest	772	50	irq/159-i915	21:18:00	12
1689932	99	460	460,0	cyclictest	0	-21	swapper/5	00:06:00	11
1689932	99	460	13,29	cyclictest	0	-21	swapper/5	20:27:00	11
1689932	99	460	13,29	cyclictest	0	-21	swapper/5	20:27:00	11
1689935	99	458	455,2	cyclictest	772	50	irq/159-i915	19:31:00	12
1689969	99	457	455,1	cyclictest	1652529	-21	kworker/14:3+i915-unordered	19:08:00	6
1689969	99	454	452,1	cyclictest	0	-21	swapper/14	20:01:00	6
1689946	99	454	453,1	cyclictest	1801362	-21	kworker/9:1+i915-unordered	21:24:00	15
1689935	99	454	453,1	cyclictest	772	50	irq/159-i915	21:59:00	12
1689916	99	454	4,447	cyclictest	0	-21	swapper/1	19:29:22	1
1689969	99	453	452,1	cyclictest	0	-21	swapper/14	21:12:00	6
1689969	99	453	452,1	cyclictest	0	-21	swapper/14	20:36:00	6
1689969	99	453	452,1	cyclictest	0	-21	swapper/14	20:36:00	6
1689940	99	453	0,452	cyclictest	0	-21	swapper/7	19:58:46	13
1689952	99	452	422,30	cyclictest	0	-21	swapper/10	21:04:00	2
1689923	99	452	4,29	cyclictest	0	-21	swapper/3	20:04:00	9
1689969	99	451	450,1	cyclictest	0	-21	swapper/14	22:01:00	6
1689966	99	451	1,30	cyclictest	0	-21	swapper/13	23:15:22	5
1689966	99	451	1,30	cyclictest	0	-21	swapper/13	23:15:22	5
1689966	99	450	2,30	cyclictest	0	-21	swapper/13	20:24:44	5
1689952	99	450	3,29	cyclictest	0	-21	swapper/10	21:09:44	2
1689966	99	449	26,419	cyclictest	0	-21	swapper/13	22:12:21	5
1689952	99	449	4,29	cyclictest	0	-21	swapper/10	20:33:00	2
1689952	99	449	4,29	cyclictest	0	-21	swapper/10	20:33:00	2
1689966	99	446	25,418	cyclictest	0	-21	swapper/13	20:02:46	5
1689923	99	446	445,1	cyclictest	1880322	-21	kworker/3:0+i915-unordered	22:55:21	9
1689958	99	445	443,1	cyclictest	0	-21	swapper/11	19:42:00	3
1689952	99	445	443,2	cyclictest	1738593	-21	kworker/10:1+pm	20:40:33	2
1689969	99	444	443,1	cyclictest	0	-21	swapper/14	21:18:00	6
1689966	99	444	25,418	cyclictest	0	-21	swapper/13	19:44:45	5
1689966	99	444	23,418	cyclictest	0	-21	swapper/13	00:31:44	5
1689923	99	444	24,419	cyclictest	0	-21	swapper/3	23:10:22	9
1689966	99	443	24,416	cyclictest	0	-21	swapper/13	23:14:00	5
1689946	99	443	442,1	cyclictest	1933708	-21	kworker/9:0+pm	00:08:55	15
1689920	99	443	442,1	cyclictest	0	-21	swapper/2	21:37:00	8
1689912	99	443	26,417	cyclictest	0	-21	swapper/0	21:01:00	0
1689935	99	442	441,1	cyclictest	0	-21	swapper/6	19:08:00	12
1689920	99	442	438,3	cyclictest	3682525	-21	snmpd	23:30:33	8
1689966	99	441	19,420	cyclictest	0	-21	swapper/13	20:17:21	5
1689963	99	441	22,419	cyclictest	0	-21	swapper/12	23:25:21	4
1689963	99	441	22,419	cyclictest	0	-21	swapper/12	23:25:21	4
1689963	99	441	20,421	cyclictest	0	-21	swapper/12	23:55:23	4
1689920	99	441	440,1	cyclictest	0	-21	swapper/2	00:01:00	8
1689966	99	440	21,417	cyclictest	0	-21	swapper/13	00:07:59	5
1689966	99	440	19,418	cyclictest	0	-21	swapper/13	21:33:44	5
1689963	99	440	23,417	cyclictest	0	-21	swapper/12	22:02:00	4
1689943	99	440	438,1	cyclictest	1735723	-21	kworker/8:2+i915-unordered	20:01:00	14
1689923	99	440	21,419	cyclictest	0	-21	swapper/3	22:20:22	9
1689969	99	439	438,1	cyclictest	1693739	-21	kworker/14:0+i915-unordered	19:31:00	6
1689966	99	439	19,419	cyclictest	0	-21	swapper/13	21:06:22	5
1689963	99	439	19,420	cyclictest	0	-21	swapper/12	21:25:45	4
1689932	99	439	23,415	cyclictest	0	-21	swapper/5	22:07:00	11
1689923	99	439	438,1	cyclictest	0	-21	swapper/3	21:08:00	9
1689969	99	438	437,1	cyclictest	0	-21	swapper/14	21:59:00	6
1689966	99	438	18,420	cyclictest	0	-21	swapper/13	21:21:44	5
1689966	99	438	18,418	cyclictest	0	-21	swapper/13	20:35:46	5
1689966	99	438	18,418	cyclictest	0	-21	swapper/13	20:35:46	5
1689966	99	438	18,418	cyclictest	0	-21	swapper/13	00:25:43	5
1689966	99	438	17,419	cyclictest	0	-21	swapper/13	22:00:43	5
1689966	99	438	16,421	cyclictest	0	-21	swapper/13	21:43:23	5
1689940	99	438	0,437	cyclictest	0	-21	swapper/7	19:22:22	13
1689923	99	438	22,416	cyclictest	0	-21	swapper/3	00:16:59	9
1689923	99	438	20,417	cyclictest	0	-21	swapper/3	21:50:22	9
1689966	99	437	17,420	cyclictest	0	-21	swapper/13	00:12:44	5
1689966	99	437	16,419	cyclictest	0	-21	swapper/13	23:51:21	5
1689966	99	437	16,418	cyclictest	0	-21	swapper/13	21:17:46	5
1689966	99	437	14,422	cyclictest	0	-21	swapper/13	23:39:23	5
1689963	99	437	16,420	cyclictest	0	-21	swapper/12	00:27:21	4
1689958	99	437	435,2	cyclictest	0	-21	swapper/11	22:48:00	3
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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