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 Jul 14, 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
3462936	99	718	300,417	cyclictest	0	-21	swapper/4	22:06:57	10
3462924	99	547	546,1	cyclictest	3717810	-21	kworker/1:0+i915-unordered	00:19:57	1
3462947	99	529	3,525	cyclictest	88	-21	ksoftirqd/7	19:09:58	13
3462936	99	520	96,423	cyclictest	3515452	-21	kworker/4:1+i915-unordered	20:17:58	10
3462936	99	520	96,423	cyclictest	3515452	-21	kworker/4:1+i915-unordered	20:17:58	10
3462983	99	513	512,1	cyclictest	3598034	-21	kworker/15:0+i915-unordered	21:44:58	7
3462936	99	510	83,422	cyclictest	3704921	-21	kworker/4:2+i915-unordered	23:47:57	10
3462936	99	494	492,2	cyclictest	3515452	-21	kworker/4:1+i915-unordered	20:10:58	10
3462936	99	494	492,2	cyclictest	3515452	-21	kworker/4:1+i915-unordered	20:10:58	10
3462978	99	493	492,1	cyclictest	0	-21	swapper/14	23:27:57	6
3462983	99	490	490,0	cyclictest	0	-21	swapper/15	19:50:58	7
3462955	99	490	488,1	cyclictest	0	-21	swapper/9	00:19:57	15
3462936	99	490	12,477	cyclictest	0	-21	swapper/4	19:35:58	10
3462955	99	488	0,486	cyclictest	0	-21	swapper/9	22:01:57	15
3462936	99	487	5,45	cyclictest	0	-21	swapper/4	19:57:58	10
3462974	99	486	486,0	cyclictest	3567859	-21	kworker/13:2+i915-unordered	21:36:58	5
3462936	99	484	482,1	cyclictest	3696710	-21	kworker/4:0+i915-unordered	23:51:57	10
3462978	99	483	482,1	cyclictest	0	-21	swapper/14	23:31:57	6
3462936	99	479	478,1	cyclictest	3515452	-21	kworker/4:1+i915-unordered	20:34:58	10
3462941	99	478	478,0	cyclictest	0	-21	swapper/5	21:36:58	11
3462943	99	474	474,0	cyclictest	0	-21	swapper/6	20:46:58	12
3462927	99	462	461,1	cyclictest	3653699	-21	kworker/2:0+i915-unordered	22:54:57	8
3462936	99	461	461,0	cyclictest	0	-21	swapper/4	19:50:58	10
3462936	99	461	459,1	cyclictest	3480696	-21	kworker/4:1+i915-unordered	19:30:58	10
3462936	99	460	20,439	cyclictest	0	-21	swapper/4	22:12:57	10
3462983	99	459	459,0	cyclictest	3377191	-21	kworker/15:0+i915-unordered	19:09:58	7
3462955	99	458	10,29	cyclictest	0	-21	swapper/9	21:48:42	15
3462955	99	457	0,456	cyclictest	0	-21	swapper/9	22:12:57	15
3462932	99	456	454,2	cyclictest	0	-21	swapper/3	00:27:57	9
3462947	99	455	27,28	cyclictest	0	-21	swapper/7	21:19:21	13
3462936	99	455	454,1	cyclictest	0	-21	swapper/4	23:11:57	10
3462936	99	455	454,1	cyclictest	0	-21	swapper/4	23:11:57	10
3462959	99	453	453,0	cyclictest	3632329	-21	kworker/10:0+i915-unordered	22:26:57	2
3462955	99	452	6,29	cyclictest	0	-21	swapper/9	19:28:21	15
3462970	99	451	450,1	cyclictest	772	50	irq/159-i915	19:15:58	4
3462924	99	450	446,4	cyclictest	0	-21	swapper/1	23:40:32	1
3462936	99	449	448,1	cyclictest	0	-21	swapper/4	00:27:57	10
3462927	99	449	449,0	cyclictest	0	-21	swapper/2	22:26:57	8
3462983	99	448	447,1	cyclictest	0	-21	swapper/15	00:02:57	7
3462965	99	446	24,421	cyclictest	0	-21	swapper/11	19:14:22	3
3462941	99	446	0,26	cyclictest	0	-21	swapper/5	23:57:20	11
3462947	99	445	24,420	cyclictest	0	-21	swapper/7	23:02:19	13
3462947	99	444	24,419	cyclictest	0	-21	swapper/7	21:27:41	13
3462947	99	444	24,418	cyclictest	0	-21	swapper/7	19:55:20	13
3462943	99	444	14,426	cyclictest	0	-21	swapper/6	19:16:43	12
3462941	99	444	0,26	cyclictest	0	-21	swapper/5	23:33:20	11
3462959	99	443	443,0	cyclictest	0	-21	swapper/10	20:20:58	2
3462959	99	443	443,0	cyclictest	0	-21	swapper/10	20:20:58	2
3462955	99	443	19,30	cyclictest	0	-21	swapper/9	22:59:57	15
3462932	99	443	441,2	cyclictest	0	-21	swapper/3	22:17:08	9
3462924	99	443	23,419	cyclictest	0	-21	swapper/1	20:40:42	1
3462947	99	442	24,416	cyclictest	0	-21	swapper/7	00:06:57	13
3462936	99	442	441,1	cyclictest	0	-21	swapper/4	23:31:57	10
3462943	99	441	22,418	cyclictest	0	-21	swapper/6	21:56:20	12
3462947	99	440	18,421	cyclictest	0	-21	swapper/7	19:39:44	13
3462974	99	439	0,2	cyclictest	0	-21	swapper/13	22:56:10	5
3462947	99	439	22,416	cyclictest	0	-21	swapper/7	21:34:57	13
3462947	99	439	19,419	cyclictest	0	-21	swapper/7	22:14:43	13
3462927	99	439	439,0	cyclictest	3524126	-21	kworker/2:0+i915-unordered	20:20:58	8
3462927	99	439	439,0	cyclictest	3524126	-21	kworker/2:0+i915-unordered	20:20:58	8
3462965	99	438	16,421	cyclictest	0	-21	swapper/11	19:12:19	3
3462955	99	438	16,29	cyclictest	0	-21	swapper/9	23:14:57	15
3462941	99	438	434,3	cyclictest	1811	-21	snmpd	22:56:10	11
3462965	99	437	16,420	cyclictest	0	-21	swapper/11	00:14:40	3
3462965	99	437	15,421	cyclictest	0	-21	swapper/11	19:45:43	3
3462959	99	437	434,2	cyclictest	0	-21	swapper/10	22:54:57	2
3462955	99	437	16,420	cyclictest	0	-21	swapper/9	19:55:41	15
3462947	99	437	17,418	cyclictest	0	-21	swapper/7	19:27:43	13
3462936	99	436	435,1	cyclictest	0	-21	swapper/4	23:27:57	10
3462936	99	436	435,1	cyclictest	0	-21	swapper/4	21:54:58	10
3462970	99	435	14,419	cyclictest	0	-21	swapper/12	22:56:20	4
3462965	99	435	17,417	cyclictest	0	-21	swapper/11	19:29:58	3
3462965	99	435	15,419	cyclictest	0	-21	swapper/11	23:30:19	3
3462955	99	435	433,1	cyclictest	0	-21	swapper/9	19:19:21	15
3462943	99	435	14,419	cyclictest	0	-21	swapper/6	00:14:19	12
3462970	99	434	6,30	cyclictest	0	-21	swapper/12	00:11:43	4
3462936	99	434	433,1	cyclictest	0	-21	swapper/4	23:42:57	10
3462970	99	433	11,421	cyclictest	0	-21	swapper/12	23:44:42	4
3462955	99	433	7,29	cyclictest	3635307	-21	memory	22:24:21	15
3462943	99	433	13,419	cyclictest	0	-21	swapper/6	21:27:19	12
3462943	99	433	12,420	cyclictest	0	-21	swapper/6	23:12:43	12
3462943	99	433	12,420	cyclictest	0	-21	swapper/6	23:12:43	12
3462955	99	432	10,419	cyclictest	0	-21	swapper/9	23:58:43	15
3462936	99	431	431,0	cyclictest	0	-21	swapper/4	19:09:58	10
3462932	99	431	13,416	cyclictest	0	-21	swapper/3	00:37:57	9
3462983	99	430	430,0	cyclictest	0	-21	swapper/15	21:42:58	7
3462924	99	430	13,416	cyclictest	0	-21	swapper/1	23:19:57	1
3462924	99	429	11,417	cyclictest	0	-21	swapper/1	19:19:58	1
3462943	99	428	7,420	cyclictest	0	-21	swapper/6	21:42:40	12
3462955	99	427	8,417	cyclictest	0	-21	swapper/9	23:33:41	15
3462936	99	427	10,416	cyclictest	0	-21	swapper/4	19:21:41	10
3462970	99	426	0,30	cyclictest	0	-21	swapper/12	00:24:57	4
3462955	99	426	5,419	cyclictest	0	-21	swapper/9	19:36:43	15
3462951	99	426	424,1	cyclictest	3531634	-21	kworker/u64:4+events_unbound	20:29:58	14
3462943	99	426	0,30	cyclictest	0	-21	swapper/6	00:24:42	12
3462936	99	426	424,2	cyclictest	0	-21	swapper/4	22:49:57	10
3462924	99	426	0,424	cyclictest	0	-21	swapper/1	20:21:58	1
3462924	99	426	0,424	cyclictest	0	-21	swapper/1	20:21:58	1
3462983	99	425	417,5	cyclictest	3683973	-21	kworker/15:0+events	23:30:40	7
3462943	99	425	6,417	cyclictest	0	-21	swapper/6	20:04:42	12
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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