OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of system in rack #5, slot #1

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.

Total number of samples: 100 million
Resolution of latency scale: normal
Duration: 5 hours, 33 minutes, lowest P state: performance

Characteristics of the 50 highest latencies:

System rack5slot1.osadl.org (updated Sat Jun 20, 2026 12:44:04)
Delayed (victim)					Switcher (culprit)			Timestamp	CPU
PID	Prio	Total latency (µs)	T^(,W^*) latency (µs)	Cmd	PID	Prio	Cmd	Timestamp	CPU
26504	39	117	0,0	EcMasterDemoSyn	0	-21	swapper/0	11:56:12	0
32594	39	92	0,0	EcMasterDemoSyn	32604	29	tAtEmLog_0	08:38:26	5
13626	39	84	0,0	EcMasterDemoSyn	13636	29	tAtEmLog_0	07:57:52	5
26960	39	83	0,0	EcMasterDemoSyn	26970	29	tAtEmLog_0	11:20:42	5
25468	39	83	0,0	EcMasterDemoSyn	25478	29	tAtEmLog_0	08:23:13	5
18365	39	83	0,0	EcMasterDemoSyn	18376	29	tAtEmLog_0	08:08:00	5
9638	39	82	0,0	EcMasterDemoSyn	9648	29	tAtEmLog_0	08:58:43	5
7279	39	82	0,0	EcMasterDemoSyn	7289	29	tAtEmLog_0	08:53:38	5
31490	39	82	0,0	EcMasterDemoSyn	31500	29	tAtEmLog_0	09:19:01	5
30240	39	82	0,0	EcMasterDemoSyn	30250	29	tAtEmLog_0	08:33:21	5
2562	39	82	0,0	EcMasterDemoSyn	2572	29	tAtEmLog_0	08:43:30	5
12294	39	82	0,0	EcMasterDemoSyn	12304	29	tAtEmLog_0	12:06:21	5
32018	39	81	0,0	EcMasterDemoSyn	32028	29	tAtEmLog_0	11:05:29	5
3086	39	81	0,0	EcMasterDemoSyn	3096	29	tAtEmLog_0	10:14:46	5
22472	99	47	46,1	cyclictest	230	50	irq/32-nvkm	10:42:07	0
22481	99	24	21,2	cyclictest	13963	-21	kworker/2:0+events	09:02:18	2
22481	99	23	20,2	cyclictest	13963	-21	kworker/2:0+events	11:59:21	2
22477	99	23	20,2	cyclictest	15879	-21	kworker/1:2+events	07:30:27	1
22487	99	22	19,2	cyclictest	13966	-21	kworker/3:0+events	10:39:35	3
22487	99	22	18,3	cyclictest	13966	-21	kworker/3:0+events	07:26:34	3
22481	99	22	19,2	cyclictest	13963	-21	kworker/2:0+events	09:43:18	2
22477	99	22	19,2	cyclictest	15879	-21	kworker/1:2+events	11:13:52	1
22487	99	21	19,2	cyclictest	13966	-21	kworker/3:0+events	09:17:37	3
22481	99	21	18,2	cyclictest	13963	-21	kworker/2:0+events	07:14:15	2
29414	2	20	0,0	sleep1	0	-21	swapper/1	10:10:28	1
22491	99	19	16,2	cyclictest	15676	-21	kworker/4:2+events	11:49:00	4
22481	99	19	16,2	cyclictest	13963	-21	kworker/2:0+events	12:36:43	2
22491	99	18	0,10	cyclictest	12225	-21	ssh	10:19:51	4
22487	99	18	15,2	cyclictest	13966	-21	kworker/3:0+events	10:25:39	3
22481	99	18	16,2	cyclictest	13963	-21	kworker/2:0+events	11:17:16	2
22472	99	18	0,9	cyclictest	780	-21	runrttasks	08:22:14	0
17172	29	18	17,0	tAtEmLog_0	0	-21	swapper/5	10:05:22	5
13637	99	18	0,10	tDemoTimingTask	14141	-21	chrt	08:00:00	5
3706	99	17	0,7	tDemoTimingTask	10734	-21	chrt	09:42:51	5
30480	99	17	0,10	tDemoTimingTask	30598	-21	chrt	12:16:33	5
22491	99	17	9,6	cyclictest	7668	-21	ps	10:35:05	4
22487	99	17	9,6	cyclictest	30099	-21	tr	11:05:12	3
22487	99	17	15,2	cyclictest	13966	-21	kworker/3:0+events	11:21:44	3
22487	99	17	14,2	cyclictest	13966	-21	kworker/3:0+events	07:47:28	3
22487	99	17	14,2	cyclictest	13966	-21	kworker/3:0+events	07:24:16	3
22481	99	17	14,2	cyclictest	13963	-21	kworker/2:0+events	10:40:39	2
22481	99	17	14,2	cyclictest	13963	-21	kworker/2:0+events	08:58:12	2
22481	99	17	0,9	cyclictest	9155	-21	ssh	12:22:58	2
22477	99	17	14,2	cyclictest	15879	-21	kworker/1:2+events	11:46:35	1
22477	99	17	14,2	cyclictest	15879	-21	kworker/1:2+events	11:38:43	1
22472	99	17	6,8	cyclictest	29161	-21	taskset	12:15:34	0
22472	99	17	0,9	cyclictest	780	-21	runrttasks	08:09:56	0
22472	99	17	0,9	cyclictest	5843	-21	hddtemp_smartct	11:45:13	0
22472	99	17	0,9	cyclictest	30818	-21	sh	09:35:34	0
22472	99	17	0,9	cyclictest	24771	-21	sh	10:08:38	0
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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