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 Dec 08, 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
1299472	99	545	99,445	cyclictest	1497200	-21	kworker/2:1+i915-unordered	23:06:17	8
1299472	99	545	95,445	cyclictest	1550725	-21	kworker/2:0+i915-unordered	00:23:17	8
1299472	99	518	14,503	cyclictest	43	-21	ksoftirqd/2	22:43:17	8
1299472	99	504	502,2	cyclictest	1562849	-21	kworker/2:2+i915-unordered	00:33:17	8
1299472	99	501	41,460	cyclictest	0	-21	swapper/2	00:03:17	8
1299491	99	500	498,2	cyclictest	1357548	-21	kworker/7:2+i915-unordered	20:20:17	13
1299491	99	493	462,31	cyclictest	0	-21	swapper/7	21:15:17	13
1299472	99	493	30,463	cyclictest	0	-21	swapper/2	20:20:17	8
1299472	99	486	10,476	cyclictest	0	-21	swapper/2	21:15:17	8
1299491	99	482	480,1	cyclictest	1357548	-21	kworker/7:2+i915-unordered	20:16:17	13
1299527	99	469	26,29	cyclictest	0	-21	swapper/15	21:43:40	7
1299477	99	469	19,30	cyclictest	0	-21	swapper/3	22:09:01	9
1299477	99	468	19,30	cyclictest	0	-21	swapper/3	22:40:39	9
1299527	99	466	23,30	cyclictest	0	-21	swapper/15	00:20:41	7
1299527	99	466	16,30	cyclictest	0	-21	swapper/15	20:06:01	7
1299472	99	462	0,460	cyclictest	0	-21	swapper/2	20:16:17	8
1299496	99	461	21,29	cyclictest	0	-21	swapper/8	20:25:04	14
1299485	99	461	455,5	cyclictest	3682525	-21	snmpd	22:40:52	11
1299514	99	460	12,29	cyclictest	0	-21	swapper/12	20:58:41	4
1299480	99	459	459,0	cyclictest	0	-21	swapper/4	23:50:17	10
1299472	99	459	19,438	cyclictest	0	-21	swapper/2	21:47:17	8
1299519	99	454	450,3	cyclictest	0	-21	swapper/13	22:40:52	5
1299488	99	454	453,1	cyclictest	3682525	-21	snmpd	21:35:50	12
1299477	99	454	6,30	cyclictest	0	-21	swapper/3	21:52:00	9
1299496	99	453	18,30	cyclictest	0	-21	swapper/8	22:19:01	14
1299472	99	451	450,1	cyclictest	0	-21	swapper/2	20:31:17	8
1299499	99	449	0,0	cyclictest	0	-21	swapper/9	22:11:17	15
1299480	99	448	447,1	cyclictest	0	-21	swapper/4	22:43:17	10
1299477	99	447	0,26	cyclictest	0	-21	swapper/3	20:01:00	9
1299466	99	447	0,447	cyclictest	0	-21	swapper/0	20:41:17	0
1299466	99	447	0,447	cyclictest	0	-21	swapper/0	20:41:17	0
1299477	99	446	0,28	cyclictest	0	-21	swapper/3	21:23:01	9
1299504	99	444	24,420	cyclictest	0	-21	swapper/10	21:32:17	2
1299472	99	444	24,420	cyclictest	0	-21	swapper/2	23:14:39	8
1299472	99	444	24,419	cyclictest	0	-21	swapper/2	23:11:39	8
1299477	99	443	23,417	cyclictest	0	-21	swapper/3	22:03:39	9
1299472	99	443	1,441	cyclictest	43	-21	ksoftirqd/2	19:45:17	8
1299527	99	442	24,418	cyclictest	0	-21	swapper/15	20:10:17	7
1299504	99	442	22,417	cyclictest	0	-21	swapper/10	23:06:17	2
1299472	99	442	23,419	cyclictest	0	-21	swapper/2	21:09:02	8
1299466	99	442	23,419	cyclictest	0	-21	swapper/0	23:40:03	0
1299509	99	441	440,1	cyclictest	1353586	-21	kworker/11:2+i915-unordered	20:17:17	3
1299504	99	440	21,419	cyclictest	0	-21	swapper/10	21:38:17	2
1299496	99	440	0,29	cyclictest	0	-21	swapper/8	22:03:01	14
1299477	99	440	23,416	cyclictest	0	-21	swapper/3	21:06:03	9
1299472	99	440	23,417	cyclictest	0	-21	swapper/2	00:07:01	8
1299472	99	440	22,417	cyclictest	0	-21	swapper/2	23:02:40	8
1299472	99	440	21,419	cyclictest	0	-21	swapper/2	22:29:40	8
1299496	99	439	23,415	cyclictest	0	-21	swapper/8	21:08:00	14
1299477	99	439	19,417	cyclictest	0	-21	swapper/3	21:43:02	9
1299477	99	439	17,419	cyclictest	0	-21	swapper/3	20:20:03	9
1299472	99	439	21,417	cyclictest	0	-21	swapper/2	23:29:03	8
1299472	99	439	21,417	cyclictest	0	-21	swapper/2	23:29:03	8
1299472	99	439	18,419	cyclictest	0	-21	swapper/2	23:22:39	8
1299472	99	439	18,419	cyclictest	0	-21	swapper/2	23:22:39	8
1299509	99	438	438,0	cyclictest	0	-21	swapper/11	23:30:17	3
1299504	99	438	20,416	cyclictest	0	-21	swapper/10	00:23:17	2
1299496	99	438	23,415	cyclictest	0	-21	swapper/8	23:20:02	14
1299496	99	438	23,415	cyclictest	0	-21	swapper/8	23:20:02	14
1299477	99	438	18,418	cyclictest	0	-21	swapper/3	21:03:01	9
1299472	99	438	19,418	cyclictest	0	-21	swapper/2	21:50:04	8
1299514	99	437	435,2	cyclictest	1309103	-21	kworker/u64:5+events_unbound	20:43:17	4
1299514	99	437	435,2	cyclictest	1309103	-21	kworker/u64:5+events_unbound	20:43:17	4
1299496	99	437	21,415	cyclictest	0	-21	swapper/8	23:18:01	14
1299488	99	437	436,1	cyclictest	1286683	-21	kworker/6:3+i915-unordered	19:27:17	12
1299472	99	437	18,418	cyclictest	0	-21	swapper/2	20:52:39	8
1299472	99	437	17,418	cyclictest	0	-21	swapper/2	20:45:03	8
1299472	99	437	17,417	cyclictest	0	-21	swapper/2	00:24:38	8
1299522	99	436	18,418	cyclictest	0	-21	swapper/14	20:25:17	6
1299488	99	436	19,417	cyclictest	0	-21	swapper/6	20:27:17	12
1299527	99	435	12,28	cyclictest	0	-21	swapper/15	19:59:13	7
1299509	99	435	434,1	cyclictest	1452078	-21	kworker/11:1+i915-unordered	22:11:17	3
1299480	99	435	17,417	cyclictest	0	-21	swapper/4	21:01:17	10
1299509	99	434	16,418	cyclictest	0	-21	swapper/11	21:57:01	3
1299527	99	433	16,416	cyclictest	0	-21	swapper/15	21:31:17	7
1299514	99	433	431,2	cyclictest	1538305	-21	kworker/12:0+i915-unordered	00:03:17	4
1299496	99	433	20,413	cyclictest	0	-21	swapper/8	23:47:01	14
1299491	99	433	432,1	cyclictest	0	-21	swapper/7	00:18:17	13
1299491	99	433	431,2	cyclictest	0	-21	swapper/7	23:52:17	13
1299480	99	433	431,2	cyclictest	0	-21	swapper/4	00:03:17	10
1299480	99	433	13,419	cyclictest	0	-21	swapper/4	19:53:17	10
1299496	99	432	17,415	cyclictest	0	-21	swapper/8	20:42:01	14
1299496	99	432	17,415	cyclictest	0	-21	swapper/8	20:42:01	14
1299477	99	432	431,1	cyclictest	0	-21	swapper/3	19:57:17	9
1299472	99	432	10,421	cyclictest	0	-21	swapper/2	22:24:00	8
1299504	99	431	15,415	cyclictest	0	-21	swapper/10	00:33:17	2
1299496	99	431	19,411	cyclictest	0	-21	swapper/8	20:36:02	14
1299496	99	431	19,411	cyclictest	0	-21	swapper/8	20:36:02	14
1299496	99	431	13,418	cyclictest	0	-21	swapper/8	21:39:38	14
1299466	99	431	9,421	cyclictest	0	-21	swapper/0	21:54:39	0
1299466	99	431	11,420	cyclictest	0	-21	swapper/0	23:26:01	0
1299466	99	431	11,420	cyclictest	0	-21	swapper/0	23:26:01	0
1299472	99	430	8,421	cyclictest	0	-21	swapper/2	00:19:01	8
1299514	99	429	429,0	cyclictest	1509461	-21	kworker/12:2+i915-unordered	23:50:17	4
1299509	99	429	11,418	cyclictest	0	-21	swapper/11	23:26:17	3
1299509	99	429	11,418	cyclictest	0	-21	swapper/11	23:26:17	3
1299504	99	429	10,416	cyclictest	0	-21	swapper/10	23:01:17	2
1299491	99	429	9,419	cyclictest	0	-21	swapper/7	00:31:17	13
1299480	99	429	10,418	cyclictest	0	-21	swapper/4	23:38:17	10
1299472	99	429	7,419	cyclictest	0	-21	swapper/2	00:12:59	8
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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