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 Fri Jul 10, 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
2248291	99	74	42,31	cyclictest	2267933	-21	kworker/1:1	20:15:15	1
2248291	99	65	44,19	cyclictest	2279352	-21	kworker/1:3	20:50:14	1
2248291	99	65	44,19	cyclictest	2279352	-21	kworker/1:3	20:50:13	1
2248291	99	65	0,64	cyclictest	0	-21	swapper/1	00:37:11	1
2248291	99	64	62,1	cyclictest	0	-21	swapper/1	20:27:58	1
2248291	99	64	0,63	cyclictest	0	-21	swapper/1	22:48:26	1
2248291	99	64	0,63	cyclictest	0	-21	swapper/1	20:04:04	1
2248291	99	63	61,1	cyclictest	0	-21	swapper/1	21:57:37	1
2248291	99	63	0,62	cyclictest	0	-21	swapper/1	21:08:35	1
2248291	99	63	0,62	cyclictest	0	-21	swapper/1	19:50:20	1
2248291	99	62	40,20	cyclictest	1505840	-1	kworker/1:1H	19:20:00	1
2248291	99	62	40,20	cyclictest	1505840	-1	kworker/1:1H	19:20:00	1
2248291	99	62	0,61	cyclictest	0	-21	swapper/1	00:23:12	1
2248291	99	62	0,1	cyclictest	0	-21	swapper/1	23:28:06	1
2248291	99	61	58,2	cyclictest	0	-21	swapper/1	20:44:33	1
2248291	99	61	42,16	cyclictest	1505840	-1	kworker/1:1H	22:30:15	1
2248291	99	60	43,16	cyclictest	2326495	-21	kworker/1:0	21:52:46	1
2248291	99	59	57,1	cyclictest	0	-21	swapper/1	23:52:37	1
2248291	99	59	43,15	cyclictest	2336333	-21	kworker/1:2	22:10:21	1
2248291	99	59	42,16	cyclictest	2255963	-21	kworker/1:3	19:35:21	1
2248291	99	59	41,16	cyclictest	2266393	-21	kworker/1:0	20:05:13	1
2248291	99	58	43,14	cyclictest	2331650	-21	kworker/1:1	22:00:14	1
2248291	99	58	43,14	cyclictest	2312006	-21	kworker/1:2	21:37:48	1
2248291	99	58	43,14	cyclictest	2297634	-21	kworker/1:0	21:21:37	1
2248291	99	58	43,14	cyclictest	2274116	-21	kworker/1:0	20:30:15	1
2248291	99	58	42,15	cyclictest	2316799	-21	kworker/1:1	21:42:10	1
2248291	99	58	42,15	cyclictest	2285823	-21	kworker/1:3	21:10:13	1
2248291	99	58	41,16	cyclictest	2255963	-21	kworker/1:3	19:30:14	1
2248291	99	58	40,16	cyclictest	2412416	-21	kworker/1:2	23:55:18	1
2248291	99	58	40,16	cyclictest	2412416	-21	kworker/1:2	23:55:18	1
2248291	99	58	40,16	cyclictest	1505840	-1	kworker/1:1H	23:42:23	1
2248291	99	58	39,17	cyclictest	2412416	-21	kworker/1:2	23:35:15	1
2248291	99	57	42,14	cyclictest	2412416	-21	kworker/1:2	00:15:01	1
2248291	99	57	42,14	cyclictest	2384362	-21	kworker/1:1	22:56:07	1
2248291	99	57	42,14	cyclictest	2361974	-21	kworker/1:2	23:00:17	1
2248291	99	57	42,14	cyclictest	2361974	-21	kworker/1:2	22:42:16	1
2248291	99	57	42,14	cyclictest	2361974	-21	kworker/1:2	22:35:13	1
2248291	99	57	42,14	cyclictest	2345968	-21	kworker/1:0	22:20:24	1
2248291	99	57	42,14	cyclictest	2280958	-21	kworker/1:1	21:00:16	1
2248291	99	57	42,14	cyclictest	2280958	-21	kworker/1:1	20:57:39	1
2248291	99	57	42,14	cyclictest	2275654	-21	kworker/1:2	20:35:13	1
2248291	99	57	41,15	cyclictest	2316799	-21	kworker/1:1	21:45:02	1
2248291	99	57	41,15	cyclictest	2267933	-21	kworker/1:1	20:20:14	1
2248291	99	57	41,15	cyclictest	2260276	-21	kworker/1:2	19:45:01	1
2248291	99	57	41,15	cyclictest	1505840	-1	kworker/1:1H	23:17:26	1
2248291	99	57	40,16	cyclictest	2402798	-21	kworker/1:1	23:23:36	1
2248291	99	57	40,16	cyclictest	2361974	-21	kworker/1:2	23:05:15	1
2248291	99	57	40,15	cyclictest	2279352	-21	kworker/1:3	20:50:00	1
2248291	99	56	52,2	cyclictest	2259333	-21	fschecks_time	19:40:14	1
2248291	99	56	41,14	cyclictest	2397533	-21	kworker/1:0	23:12:18	1
2248291	99	56	41,14	cyclictest	2297634	-21	kworker/1:0	21:25:00	1
2248291	99	56	41,14	cyclictest	2248719	-21	kworker/1:0	19:13:36	1
2248291	99	56	39,16	cyclictest	2446515	-21	kworker/1:1	00:07:13	1
2248291	99	55	40,14	cyclictest	2451521	-21	kworker/1:0	00:10:15	1
2248291	99	55	40,14	cyclictest	2441338	-21	kworker/1:0	00:00:15	1
2248291	99	55	40,14	cyclictest	2301382	-21	kworker/1:1	21:30:14	1
2248291	99	55	39,15	cyclictest	2285823	-21	kworker/1:3	21:15:18	1
2248293	99	54	50,2	cyclictest	997682	-21	kworker/3:0	21:15:05	3
2248291	99	54	39,14	cyclictest	2379442	-21	kworker/1:0	22:50:22	1
2248291	99	54	39,14	cyclictest	2345968	-21	kworker/1:0	22:25:21	1
2248291	99	54	39,14	cyclictest	2260276	-21	kworker/1:2	19:55:20	1
2248291	99	54	39,14	cyclictest	1505840	-1	kworker/1:1H	23:30:31	1
2248291	99	54	38,15	cyclictest	2426906	-21	kworker/1:1	23:45:42	1
2248291	99	54	38,15	cyclictest	2426906	-21	kworker/1:1	23:45:42	1
2248291	99	54	38,15	cyclictest	2251813	-21	kworker/1:2	19:25:14	1
2248291	99	54	36,17	cyclictest	2251813	-21	kworker/1:2	19:20:13	1
2248293	99	53	49,3	cyclictest	997682	-21	kworker/3:0	19:10:05	3
2248293	99	53	48,3	cyclictest	3239927	-1	kworker/3:0H	22:11:08	3
2248293	99	53	47,3	cyclictest	3239927	-1	kworker/3:0H	22:05:00	3
2248292	99	53	48,3	cyclictest	3193974	-1	kworker/2:0H	19:50:12	2
2248291	99	53	38,14	cyclictest	2336333	-21	kworker/1:2	22:05:33	1
2248291	99	53	0,2	cyclictest	604	-21	rs:main		1
2248293	99	52	48,3	cyclictest	3239927	-1	kworker/3:0H	00:00:25	3
2248293	99	52	47,3	cyclictest	997682	-21	kworker/3:0	20:38:04	3
2248293	99	52	47,3	cyclictest	3239927	-1	kworker/3:0H	23:54:31	3
2248293	99	52	47,3	cyclictest	2460329	-21	kworker/3:1	00:36:36	3
2248292	99	52	47,3	cyclictest	2320771	-21	kworker/2:2	22:19:21	2
2248292	99	52	45,4	cyclictest	3193974	-1	kworker/2:0H	21:45:15	2
2248292	99	52	36,13	cyclictest	3193974	-1	kworker/2:0H	22:30:16	2
2248291	99	52	37,14	cyclictest	2341180	-21	kworker/1:1	22:15:23	1
2248291	99	52	34,17	cyclictest	2469333	-21	kworker/1:3	00:30:18	1
2248289	99	52	47,3	cyclictest	2283609	-21	kworker/0:1	21:01:02	0
2248293	99	51	47,3	cyclictest	3239927	-1	kworker/3:0H	19:57:32	3
2248293	99	51	47,2	cyclictest	3239927	-1	kworker/3:0H	19:30:14	3
2248292	99	51	48,2	cyclictest	2280280	-21	kworker/2:2	20:48:05	2
2248292	99	51	46,3	cyclictest	3193974	-1	kworker/2:0H	21:22:44	2
2248292	99	51	45,4	cyclictest	3193974	-1	kworker/2:0H	22:04:08	2
2248292	99	51	34,3	cyclictest	3193974	-1	kworker/2:0H	22:25:15	2
2248293	99	50	46,2	cyclictest	2300032	-21	kworker/3:2	21:31:43	3
2248293	99	50	45,3	cyclictest	997682	-21	kworker/3:0	19:28:59	3
2248293	99	50	44,4	cyclictest	3239927	-1	kworker/3:0H	22:06:04	3
2248292	99	50	32,2	cyclictest	3193974	-1	kworker/2:0H	20:21:55	2
2248291	99	50	34,15	cyclictest	2467280	-21	kworker/1:0	00:29:43	1
2248289	99	50	47,2	cyclictest	2275644	-21	kworker/0:0	20:50:22	0
2248289	99	50	47,2	cyclictest	2275644	-21	kworker/0:0	20:50:21	0
2248289	99	50	46,3	cyclictest	2439356	-21	kworker/0:2	00:29:12	0
2248289	99	50	46,2	cyclictest	2314350	-21	kworker/0:1	22:32:20	0
2248289	99	50	45,3	cyclictest	2314350	-21	kworker/0:1	22:00:59	0
2248293	99	49	45,3	cyclictest	2428175	-21	kworker/3:2	00:07:12	3
2248293	99	49	44,3	cyclictest	997682	-21	kworker/3:0	19:24:34	3
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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