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 Sep 05, 2026 12:43:49)
Delayed (victim)					Switcher (culprit)			Timestamp	CPU
PID	Prio	Total latency (µs)	T^(,W^*) latency (µs)	Cmd	PID	Prio	Cmd	Timestamp	CPU
1309309	99	74	35,37	cyclictest	3479469	-1	kworker/1:1H	07:35:00	1
1309309	99	65	60,3	cyclictest	0	-21	swapper/1	12:25:32	1
1309309	99	64	42,20	cyclictest	1415673	-21	kworker/1:1	10:35:16	1
1309309	99	63	46,16	cyclictest	1349284	-21	kworker/1:1	09:11:43	1
1309309	99	63	43,18	cyclictest	1450603	-21	kworker/1:3	11:35:03	1
1309309	99	63	42,18	cyclictest	3479469	-1	kworker/1:1H	11:15:14	1
1309309	99	62	44,16	cyclictest	1336466	-21	kworker/1:0	08:50:35	1
1309309	99	62	43,18	cyclictest	1382435	-21	kworker/1:2	09:59:11	1
1309309	99	62	43,17	cyclictest	1327810	-21	kworker/1:1	08:05:30	1
1309309	99	62	43,17	cyclictest	1308960	-21	kworker/1:2	07:19:39	1
1309309	99	62	42,18	cyclictest	1320798	-21	kworker/1:0	07:55:14	1
1309309	99	62	41,20	cyclictest	1353945	-21	kworker/1:2	09:35:13	1
1309309	99	61	43,17	cyclictest	1499177	-21	kworker/1:0	12:10:32	1
1309309	99	61	43,17	cyclictest	1434642	-21	kworker/1:2	10:51:22	1
1309309	99	61	43,17	cyclictest	1399000	-21	kworker/1:0	10:13:34	1
1309309	99	61	43,17	cyclictest	1358797	-21	kworker/1:0	09:25:01	1
1309309	99	61	43,16	cyclictest	1329713	-21	kworker/1:2	08:10:30	1
1309309	99	61	42,17	cyclictest	3479469	-1	kworker/1:1H	12:00:15	1
1309309	99	61	42,17	cyclictest	1450603	-21	kworker/1:3	11:12:40	1
1309309	99	61	42,17	cyclictest	1308960	-21	kworker/1:2	07:21:08	1
1309309	99	61	40,20	cyclictest	1336466	-21	kworker/1:0	08:35:15	1
1309309	99	61	40,19	cyclictest	1336466	-21	kworker/1:0	08:45:01	1
1309309	99	61	39,20	cyclictest	3479469	-1	kworker/1:1H	12:20:01	1
1309309	99	61	39,20	cyclictest	1319241	-21	kworker/1:1	07:40:16	1
1309309	99	61	38,21	cyclictest	1320798	-21	kworker/1:0	07:50:02	1
1309309	99	60	43,16	cyclictest	1490167	-21	kworker/1:3	11:55:21	1
1309309	99	60	43,16	cyclictest	1399000	-21	kworker/1:0	10:15:16	1
1309309	99	60	43,16	cyclictest	1377782	-21	kworker/1:0	09:45:22	1
1309309	99	60	43,16	cyclictest	1353945	-21	kworker/1:2	09:20:12	1
1309309	99	60	42,17	cyclictest	1382435	-21	kworker/1:2	10:00:14	1
1309309	99	60	42,17	cyclictest	1344182	-21	kworker/1:2	09:00:37	1
1309309	99	60	42,16	cyclictest	1523780	-21	kworker/1:1	12:35:14	1
1309309	99	60	42,16	cyclictest	1519013	-21	kworker/1:2	12:24:41	1
1309309	99	60	42,16	cyclictest	1490167	-21	kworker/1:3	11:50:53	1
1309309	99	60	42,16	cyclictest	1474701	-21	kworker/1:0	11:45:23	1
1309309	99	60	42,16	cyclictest	1470039	-21	kworker/1:1	11:30:14	1
1309309	99	60	42,16	cyclictest	1329713	-21	kworker/1:2	08:25:34	1
1309309	99	60	42,16	cyclictest	1329713	-21	kworker/1:2	08:25:34	1
1309309	99	60	41,18	cyclictest	1450603	-21	kworker/1:3	11:25:14	1
1309309	99	60	41,17	cyclictest	1523780	-21	kworker/1:1	12:31:05	1
1309309	99	60	41,17	cyclictest	1415673	-21	kworker/1:1	10:29:39	1
1309309	99	60	40,18	cyclictest	1342640	-21	kworker/1:1	08:55:13	1
1309309	99	60	39,20	cyclictest	1324739	-21	kworker/1:3	08:00:16	1
1309309	99	60	39,19	cyclictest	1415673	-21	kworker/1:1	10:30:18	1
1309309	99	59	42,16	cyclictest	1353945	-21	kworker/1:2	09:42:09	1
1309309	99	59	41,17	cyclictest	1334927	-21	kworker/1:1	08:30:00	1
1309309	99	59	41,17	cyclictest	1329713	-21	kworker/1:2	08:20:32	1
1309309	99	59	41,16	cyclictest	1314343	-21	kworker/1:0	07:25:18	1
1309309	99	59	40,18	cyclictest	1429989	-21	kworker/1:1	10:45:15	1
1309309	99	59	40,18	cyclictest	1345740	-21	kworker/1:0	09:15:45	1
1309309	99	59	38,20	cyclictest	1308960	-21	kworker/1:2	07:10:16	1
1309309	99	58	41,16	cyclictest	1474701	-21	kworker/1:0	11:40:23	1
1309309	99	58	41,16	cyclictest	1420530	-21	kworker/1:0	11:05:49	1
1309309	99	58	41,16	cyclictest	1420530	-21	kworker/1:0	10:41:24	1
1309309	99	58	40,17	cyclictest	1450603	-21	kworker/1:3	11:22:41	1
1309309	99	58	40,17	cyclictest	1420530	-21	kworker/1:0	10:59:12	1
1309309	99	58	39,17	cyclictest	3479469	-1	kworker/1:1H	12:05:16	1
1309309	99	57	39,16	cyclictest	1336466	-21	kworker/1:0	08:45:33	1
1309309	99	56	40,14	cyclictest	1344182	-21	kworker/1:2	09:05:17	1
1309309	99	56	39,16	cyclictest	1383303	-21	kworker/1:3	09:50:01	1
1309314	99	55	49,4	cyclictest	902212	-1	kworker/3:2H	07:15:41	3
1309310	99	55	51,2	cyclictest	1333393	-21	kworker/2:1	08:28:09	2
1309310	99	55	51,2	cyclictest	1333393	-21	kworker/2:1	08:28:09	2
1309309	99	54	0,52	cyclictest	1410605	-21	fschecks_count	10:20:15	1
1309309	99	53	37,15	cyclictest	3479469	-1	kworker/1:1H	10:05:14	1
1309309	99	53	32,19	cyclictest	3479469	-1	kworker/1:1H	07:40:01	1
1309307	99	53	48,3	cyclictest	1356272	-21	kworker/0:2	09:24:40	0
1309314	99	52	47,3	cyclictest	1334989	-21	kworker/3:2	09:04:09	3
1309314	99	52	47,3	cyclictest	1309024	-21	kworker/3:0	07:48:09	3
1309310	99	52	49,2	cyclictest	1425801	-21	kworker/2:2	10:37:09	2
1309310	99	52	46,4	cyclictest	3683655	-1	kworker/2:2H	11:25:00	2
1309309	99	52	37,14	cyclictest	1420530	-21	kworker/1:0	11:00:01	1
1309309	99	52	37,14	cyclictest	1329713	-21	kworker/1:2	08:15:13	1
1309309	99	51	0,50	cyclictest	0	-21	swapper/1	09:30:38	1
1309307	99	51	47,2	cyclictest	1583174	-1	kworker/0:0H	11:15:02	0
1309314	99	50	45,3	cyclictest	1334989	-21	kworker/3:2	09:21:07	3
1309310	99	50	46,3	cyclictest	1488976	-21	kworker/2:1	11:50:59	2
1309310	99	50	46,2	cyclictest	1317670	-21	kworker/2:0	07:37:09	2
1309307	99	50	47,2	cyclictest	1399909	-21	kworker/0:2	10:13:39	0
1309307	99	50	45,3	cyclictest	1583174	-1	kworker/0:0H	08:45:41	0
1309307	99	50	45,3	cyclictest	1451704	-21	kworker/0:1	11:25:11	0
1309314	99	49	44,3	cyclictest	902212	-1	kworker/3:2H	09:25:44	3
1309310	99	49	46,2	cyclictest	1336471	-21	kworker/2:0	08:45:26	2
1309310	99	49	44,3	cyclictest	3683655	-1	kworker/2:2H	09:40:00	2
1309309	99	49	34,14	cyclictest	1320798	-21	kworker/1:0	07:45:05	1
1309314	99	48	43,3	cyclictest	902212	-1	kworker/3:2H	10:00:42	3
1309314	99	48	43,3	cyclictest	902212	-1	kworker/3:2H	09:08:33	3
1309314	99	48	43,3	cyclictest	902212	-1	kworker/3:2H	08:55:31	3
1309310	99	48	45,2	cyclictest	3683655	-1	kworker/2:2H	08:39:34	2
1309310	99	48	45,2	cyclictest	1425801	-21	kworker/2:2	10:52:09	2
1309310	99	48	45,2	cyclictest	1425801	-21	kworker/2:2	10:49:10	2
1309310	99	48	45,2	cyclictest	1345738	-21	kworker/2:2	09:07:08	2
1309310	99	48	45,2	cyclictest	1325651	-21	kworker/2:1	08:05:22	2
1309310	99	48	45,2	cyclictest	1309457	-21	kworker/2:1	07:17:37	2
1309310	99	48	44,3	cyclictest	1333393	-21	kworker/2:1	08:33:38	2
1309310	99	48	43,3	cyclictest	1330289	-21	kworker/2:0	08:22:34	2
1309307	99	48	44,3	cyclictest	1583174	-1	kworker/0:0H	11:20:56	0
1309307	99	48	44,3	cyclictest	1451704	-21	kworker/0:1	11:37:45	0
1309307	99	48	44,2	cyclictest	1583174	-1	kworker/0:0H	08:05:28	0
1309307	99	48	43,3	cyclictest	1583174	-1	kworker/0:0H	11:40:23	0
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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