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 Fri Jun 26, 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
338301	99	540	16,523	cyclictest	0	-21	swapper/0	20:02:55	0
338339	99	537	3,0	cyclictest	0	-21	swapper/10	21:44:54	2
338320	99	530	39,490	cyclictest	0	-21	swapper/5	19:13:55	11
338307	99	511	511,0	cyclictest	0	-21	swapper/2	20:37:55	8
338307	99	511	511,0	cyclictest	0	-21	swapper/2	20:37:55	8
338347	99	497	34,462	cyclictest	0	-21	swapper/11	00:30:54	3
338326	99	496	466,30	cyclictest	0	-21	swapper/7	22:44:54	13
338354	99	494	494,0	cyclictest	0	-21	swapper/13	21:42:54	5
338352	99	493	493,0	cyclictest	598956	-21	kworker/12:1+i915-unordered	00:20:54	4
338339	99	492	17,59	cyclictest	0	-21	swapper/10	20:25:17	2
338315	99	492	25,59	cyclictest	0	-21	swapper/4	21:47:54	10
338358	99	491	490,1	cyclictest	538313	-21	kworker/14:2+i915-unordered	23:04:54	6
338362	99	488	486,2	cyclictest	525391	-21	kworker/15:0+i915-unordered	22:44:54	7
338320	99	488	488,0	cyclictest	0	-21	swapper/5	00:04:54	11
338347	99	485	23,461	cyclictest	0	-21	swapper/11	19:23:55	3
338358	99	483	483,0	cyclictest	0	-21	swapper/14	23:28:54	6
338358	99	483	483,0	cyclictest	0	-21	swapper/14	23:28:54	6
338347	99	483	20,462	cyclictest	0	-21	swapper/11	22:38:54	3
338324	99	477	476,1	cyclictest	550916	-21	kworker/6:1+i915-unordered	23:09:54	12
338347	99	476	0,476	cyclictest	0	-21	swapper/11	20:02:55	3
338331	99	476	474,2	cyclictest	386105	-21	kworker/8:0+i915-unordered	20:02:55	14
338339	99	475	27,29	cyclictest	0	-21	swapper/10	19:22:17	2
338304	99	475	25,28	cyclictest	0	-21	swapper/1	22:29:39	1
338304	99	474	473,1	cyclictest	520803	-21	kworker/1:1+i915-unordered	22:38:54	1
338312	99	473	473,0	cyclictest	697	50	irq/159-i915	19:38:55	9
338304	99	472	26,29	cyclictest	0	-21	swapper/1	21:26:16	1
338339	99	469	18,28	cyclictest	0	-21	swapper/10	21:17:17	2
338347	99	468	13,453	cyclictest	0	-21	swapper/11	23:09:54	3
338339	99	468	19,30	cyclictest	0	-21	swapper/10	21:04:17	2
338307	99	468	467,1	cyclictest	464469	-21	kworker/2:1+i915-unordered	21:44:54	8
338304	99	468	13,29	cyclictest	0	-21	swapper/1	23:56:15	1
338312	99	467	466,1	cyclictest	697	50	irq/159-i915	20:02:55	9
338312	99	467	20,30	cyclictest	0	-21	swapper/3	22:44:16	9
338315	99	466	466,0	cyclictest	0	-21	swapper/4	00:14:54	10
338347	99	465	2,461	cyclictest	0	-21	swapper/11	00:02:54	3
338312	99	465	17,30	cyclictest	0	-21	swapper/3	00:19:38	9
338334	99	462	21,30	cyclictest	0	-21	swapper/9	19:54:54	15
338354	99	461	460,1	cyclictest	0	-21	swapper/13	22:55:54	5
338304	99	460	12,30	cyclictest	0	-21	swapper/1	23:17:17	1
338312	99	459	457,2	cyclictest	697	50	irq/159-i915	00:30:54	9
338324	99	457	13,29	cyclictest	0	-21	swapper/6	23:43:40	12
338352	99	456	6,30	cyclictest	0	-21	swapper/12	22:00:17	4
338312	99	456	455,1	cyclictest	697	50	irq/159-i915	00:02:54	9
338347	99	455	452,3	cyclictest	559963	-21	kworker/11:2+i915-unordered	23:24:54	3
338347	99	455	452,3	cyclictest	559963	-21	kworker/11:2+i915-unordered	23:24:54	3
338324	99	455	9,30	cyclictest	0	-21	swapper/6	20:01:15	12
338320	99	454	454,0	cyclictest	0	-21	swapper/5	19:38:55	11
338347	99	453	451,2	cyclictest	503355	-21	kworker/11:1+i915-unordered	22:17:54	3
338334	99	453	9,30	cyclictest	0	-21	swapper/9	22:26:49	15
338352	99	451	2,29	cyclictest	0	-21	swapper/12	21:12:40	4
338324	99	451	22,30	cyclictest	0	-21	swapper/6	23:35:17	12
338324	99	451	22,30	cyclictest	0	-21	swapper/6	23:35:17	12
338320	99	451	3,29	cyclictest	0	-21	swapper/5	23:03:16	11
338320	99	451	0,30	cyclictest	0	-21	swapper/5	23:07:16	11
338312	99	451	448,3	cyclictest	1818	-21	snmpd	20:34:51	9
338304	99	451	0,30	cyclictest	0	-21	swapper/1	22:04:17	1
338301	99	451	2,30	cyclictest	0	-21	swapper/0	19:49:17	0
338352	99	450	1,30	cyclictest	0	-21	swapper/12	22:19:39	4
338339	99	450	0,29	cyclictest	0	-21	swapper/10	19:42:39	2
338339	99	449	0,29	cyclictest	0	-21	swapper/10	23:12:38	2
338326	99	449	449,0	cyclictest	412192	-21	kworker/7:1+i915-unordered	20:49:54	13
338315	99	449	11,30	cyclictest	0	-21	swapper/4	20:20:54	10
338358	99	448	0,30	cyclictest	0	-21	swapper/14	22:06:50	6
338354	99	448	448,0	cyclictest	306990	-21	kworker/13:3+i915-unordered	19:13:55	5
338304	99	448	0,30	cyclictest	0	-21	swapper/1	22:26:16	1
338304	99	448	0,30	cyclictest	0	-21	swapper/1	00:05:38	1
338301	99	448	26,421	cyclictest	0	-21	swapper/0	21:39:17	0
338339	99	447	25,419	cyclictest	0	-21	swapper/10	21:48:39	2
338339	99	447	24,422	cyclictest	0	-21	swapper/10	20:59:38	2
338331	99	447	0,30	cyclictest	0	-21	swapper/8	20:47:39	14
338312	99	447	446,1	cyclictest	697	50	irq/159-i915	19:23:55	9
338334	99	446	5,29	cyclictest	0	-21	swapper/9	21:12:54	15
338320	99	446	25,418	cyclictest	0	-21	swapper/5	20:15:16	11
338320	99	446	24,421	cyclictest	0	-21	swapper/5	22:57:40	11
338320	99	446	23,419	cyclictest	0	-21	swapper/5	22:53:16	11
338312	99	446	445,1	cyclictest	697	50	irq/159-i915	22:38:54	9
338304	99	446	25,419	cyclictest	0	-21	swapper/1	20:51:40	1
338304	99	446	25,419	cyclictest	0	-21	swapper/1	20:40:40	1
338304	99	446	25,419	cyclictest	0	-21	swapper/1	20:40:40	1
338301	99	446	443,2	cyclictest	598557	-21	kworker/0:1+pm	00:16:07	0
338320	99	445	23,420	cyclictest	0	-21	swapper/5	20:26:17	11
338320	99	445	23,419	cyclictest	0	-21	swapper/5	20:55:38	11
338315	99	445	443,1	cyclictest	0	-21	swapper/4	00:20:54	10
338304	99	445	24,420	cyclictest	0	-21	swapper/1	20:09:17	1
338304	99	445	24,419	cyclictest	0	-21	swapper/1	22:33:15	1
338301	99	445	23,421	cyclictest	0	-21	swapper/0	20:49:38	0
338339	99	444	23,418	cyclictest	0	-21	swapper/10	23:47:37	2
338331	99	444	25,418	cyclictest	0	-21	swapper/8	20:36:39	14
338320	99	444	23,419	cyclictest	0	-21	swapper/5	20:20:39	11
338312	99	444	24,418	cyclictest	0	-21	swapper/3	23:27:39	9
338312	99	444	24,418	cyclictest	0	-21	swapper/3	23:27:39	9
338354	99	443	0,30	cyclictest	0	-21	swapper/13	21:13:54	5
338354	99	443	0,29	cyclictest	0	-21	swapper/13	22:59:54	5
338331	99	443	26,416	cyclictest	0	-21	swapper/8	22:42:40	14
338331	99	443	25,417	cyclictest	0	-21	swapper/8	20:07:38	14
338320	99	443	22,419	cyclictest	0	-21	swapper/5	22:39:38	11
338320	99	443	22,419	cyclictest	0	-21	swapper/5	21:56:37	11
338301	99	443	22,420	cyclictest	0	-21	swapper/0	20:26:38	0
338301	99	443	22,420	cyclictest	0	-21	swapper/0	20:14:16	0
338358	99	442	0,30	cyclictest	0	-21	swapper/14	19:48:54	6
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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