OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of system in rack #e, slot #3

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 rackeslot3.osadl.org (updated Sat May 16, 2026 00:43:50)
Delayed (victim)					Switcher (culprit)			Timestamp	CPU
PID	Prio	Total latency (µs)	T^(,W^*) latency (µs)	Cmd	PID	Prio	Cmd	Timestamp	CPU
2094553	99	73	55,17	cyclictest	2300535	-21	kworker/1:1	00:15:14	1
2094553	99	68	1,65	cyclictest	0	-21	swapper/1	23:09:33	1
2094553	99	65	43,21	cyclictest	2202188	-21	kworker/1:3	22:25:14	1
2094553	99	64	43,19	cyclictest	835579	-1	kworker/1:1H	23:35:14	1
2094553	99	63	42,18	cyclictest	2295269	-21	kworker/1:3	00:10:01	1
2094553	99	62	58,2	cyclictest	0	-21	swapper/1	20:38:04	1
2094553	99	62	44,17	cyclictest	2282832	-21	kworker/1:2	23:55:00	1
2094553	99	62	44,17	cyclictest	2257538	-21	kworker/1:1	23:29:00	1
2094553	99	62	44,17	cyclictest	2257538	-21	kworker/1:1	23:29:00	1
2094553	99	62	44,17	cyclictest	2104511	-21	kworker/1:0	19:49:30	1
2094553	99	62	43,17	cyclictest	2248263	-21	kworker/1:3	23:20:13	1
2094553	99	62	39,21	cyclictest	2322815	-21	kworker/1:3	00:35:18	1
2094553	99	61	43,17	cyclictest	2127663	-21	kworker/1:3	20:55:13	1
2094553	99	61	42,17	cyclictest	2212701	-21	kworker/1:0	23:05:01	1
2094553	99	61	41,18	cyclictest	2310400	-21	kworker/1:2	00:25:16	1
2094553	99	61	41,18	cyclictest	2104511	-21	kworker/1:0	20:15:00	1
2094553	99	61	40,19	cyclictest	2144370	-21	kworker/1:0	21:30:13	1
2094553	99	61	39,19	cyclictest	2124788	-21	kworker/1:0	20:55:01	1
2094553	99	61	37,22	cyclictest	2263725	-21	kworker/1:0	23:35:00	1
2094553	99	60	43,16	cyclictest	2282832	-21	kworker/1:2	23:55:01	1
2094553	99	60	43,16	cyclictest	2124788	-21	kworker/1:0	21:00:00	1
2094553	99	60	42,17	cyclictest	835579	-1	kworker/1:1H	21:20:15	1
2094553	99	60	42,17	cyclictest	2268950	-21	kworker/1:3	23:40:14	1
2094553	99	60	42,17	cyclictest	2175634	-21	kworker/1:2	22:05:14	1
2094553	99	60	42,17	cyclictest	2158848	-21	kworker/1:2	21:40:01	1
2094553	99	60	42,17	cyclictest	2124788	-21	kworker/1:0	20:45:24	1
2094553	99	60	41,18	cyclictest	2098258	-21	kworker/1:3	19:39:30	1
2094553	99	60	41,17	cyclictest	2115257	-21	kworker/1:2	20:25:01	1
2094553	99	60	40,18	cyclictest	2175634	-21	kworker/1:2	22:00:12	1
2094553	99	60	38,20	cyclictest	2202188	-21	kworker/1:3	22:30:14	1
2094553	99	60	38,20	cyclictest	2104511	-21	kworker/1:0	19:40:11	1
2094553	99	60	37,21	cyclictest	2115257	-21	kworker/1:2	20:15:14	1
2094553	99	60	36,22	cyclictest	2094390	-21	kworker/1:1	19:10:16	1
2094553	99	59	42,16	cyclictest	2158848	-21	kworker/1:2	21:40:00	1
2094553	99	59	41,16	cyclictest	2098258	-21	kworker/1:3	19:20:17	1
2094553	99	59	40,18	cyclictest	2295269	-21	kworker/1:3	00:05:24	1
2094553	99	59	40,18	cyclictest	2195151	-21	kworker/1:2	22:25:00	1
2094553	99	59	40,18	cyclictest	2124788	-21	kworker/1:0	21:07:59	1
2094553	99	59	40,18	cyclictest	2104511	-21	kworker/1:0	19:55:36	1
2094553	99	59	40,18	cyclictest	2098258	-21	kworker/1:3	19:30:24	1
2094553	99	59	40,17	cyclictest	2115257	-21	kworker/1:2	20:21:00	1
2094553	99	59	39,19	cyclictest	2248263	-21	kworker/1:3	23:16:08	1
2094553	99	59	39,18	cyclictest	2305568	-21	kworker/1:0	00:20:14	1
2094553	99	59	39,18	cyclictest	2115257	-21	kworker/1:2	20:40:14	1
2094553	99	59	37,20	cyclictest	2229641	-21	kworker/1:3	22:55:13	1
2094553	99	59	37,20	cyclictest	2212701	-21	kworker/1:0	22:40:14	1
2094553	99	59	0,56	cyclictest	2097394	-21	fschecks_time	19:15:15	1
2094553	99	58	39,18	cyclictest	2207502	-21	kworker/1:1	22:35:02	1
2094553	99	58	39,18	cyclictest	2132246	-21	kworker/1:2	21:10:14	1
2094553	99	58	39,18	cyclictest	2104511	-21	kworker/1:0	19:50:14	1
2094553	99	58	38,19	cyclictest	2240640	-21	kworker/1:2	23:10:13	1
2094553	99	58	38,18	cyclictest	2315215	-21	kworker/1:1	00:30:14	1
2094553	99	58	38,18	cyclictest	2315215	-21	kworker/1:1	00:30:14	1
2094553	99	58	37,19	cyclictest	2212701	-21	kworker/1:0	22:45:17	1
2094553	99	57	38,18	cyclictest	2268950	-21	kworker/1:3	23:45:01	1
2094553	99	57	38,17	cyclictest	2115257	-21	kworker/1:2	20:30:06	1
2094553	99	57	36,19	cyclictest	2144370	-21	kworker/1:0	21:25:21	1
2094553	99	56	39,16	cyclictest	2263725	-21	kworker/1:0	00:00:15	1
2094553	99	55	38,16	cyclictest	835579	-1	kworker/1:1H	21:45:13	1
2094553	99	55	38,16	cyclictest	835579	-1	kworker/1:1H	21:45:13	1
2094553	99	55	38,16	cyclictest	2134352	-21	kworker/1:1	21:15:14	1
2094553	99	55	38,16	cyclictest	2104511	-21	kworker/1:0	20:00:04	1
2094553	99	55	37,17	cyclictest	2190247	-21	kworker/1:1	22:15:01	1
2094553	99	55	36,17	cyclictest	2098258	-21	kworker/1:3	19:25:14	1
2094553	99	54	37,15	cyclictest	2222566	-21	kworker/1:1	22:50:13	1
2094553	99	54	35,17	cyclictest	2163714	-21	kworker/1:0	21:50:01	1
2094553	99	54	1,52	cyclictest	0	-21	swapper/1	22:18:31	1
2094559	99	53	49,3	cyclictest	523682	-21	kworker/3:0	19:20:28	3
2094555	99	53	49,3	cyclictest	2182292	-21	kworker/2:0	22:05:42	2
2094555	99	52	45,4	cyclictest	3402818	-1	kworker/2:1H	21:45:48	2
2094555	99	52	45,4	cyclictest	3402818	-1	kworker/2:1H	21:45:48	2
2094553	99	52	36,15	cyclictest	2104511	-21	kworker/1:0	20:05:14	1
2094552	99	52	37,3	cyclictest	2731713	-1	kworker/0:0H	23:40:13	0
2094559	99	51	46,3	cyclictest	2102907	-21	kworker/3:2	19:54:55	3
2094555	99	51	46,3	cyclictest	3402818	-1	kworker/2:1H	19:45:16	2
2094555	99	51	46,3	cyclictest	3402818	-1	kworker/2:1H	00:10:59	2
2094553	99	51	31,18	cyclictest	2163714	-21	kworker/1:0	21:55:14	1
2094559	99	50	46,2	cyclictest	2130765	-21	kworker/3:0	22:31:19	3
2094559	99	50	45,3	cyclictest	3655225	-1	kworker/3:2H	20:15:22	3
2094555	99	50	44,4	cyclictest	3402818	-1	kworker/2:1H	23:14:33	2
2094552	99	50	46,2	cyclictest	2194780	-21	kworker/0:0	22:24:30	0
2094552	99	50	44,3	cyclictest	2731713	-1	kworker/0:0H	23:30:14	0
2094559	99	49	46,2	cyclictest	2130765	-21	kworker/3:0	22:43:24	3
2094559	99	49	45,3	cyclictest	3655225	-1	kworker/3:2H	00:23:33	3
2094559	99	49	44,3	cyclictest	3655225	-1	kworker/3:2H	23:52:58	3
2094555	99	49	45,3	cyclictest	3402818	-1	kworker/2:1H	21:10:31	2
2094555	99	49	44,3	cyclictest	3402818	-1	kworker/2:1H	21:16:59	2
2094552	99	49	45,2	cyclictest	2146338	-21	kworker/0:0	21:45:35	0
2094552	99	49	45,2	cyclictest	2146338	-21	kworker/0:0	21:45:34	0
2094552	99	49	42,4	cyclictest	2731713	-1	kworker/0:0H	20:27:53	0
2094559	99	48	45,2	cyclictest	2266065	-21	kworker/3:1	23:44:59	3
2094559	99	48	45,2	cyclictest	2130765	-21	kworker/3:0	23:32:59	3
2094559	99	48	45,2	cyclictest	2130765	-21	kworker/3:0	22:03:59	3
2094559	99	48	45,2	cyclictest	2130765	-21	kworker/3:0	21:55:57	3
2094559	99	48	45,2	cyclictest	2102907	-21	kworker/3:2	20:59:56	3
2094559	99	48	43,3	cyclictest	2130765	-21	kworker/3:0	22:56:09	3
2094559	99	48	42,3	cyclictest	3655225	-1	kworker/3:2H	20:00:14	3
2094559	99	48	41,4	cyclictest	3655225	-1	kworker/3:2H	21:45:13	3
2094559	99	48	41,4	cyclictest	3655225	-1	kworker/3:2H	21:45:13	3
2094555	99	48	44,3	cyclictest	3402818	-1	kworker/2:1H	22:46:59	2
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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This page was last modified on 2021-09-01 - 00:33