OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of system in rack #7, slot #2

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
Compare latency of primary with shadow system

Characteristics of the 50 highest latencies:

System rack7slot2.osadl.org (updated Mon Jul 27, 2026 00:44:09)
Delayed (victim)					Switcher (culprit)			Timestamp	CPU
PID	Prio	Total latency (µs)	T^(,W^*) latency (µs)	Cmd	PID	Prio	Cmd	Timestamp	CPU
1197837	99	99	92,5	cyclictest	1347313	-21	kworker/u4:3+events_unbound	23:31:29	1
1197836	99	96	88,6	cyclictest	1351811	-21	kworker/u4:12+events_unbound	23:36:30	0
1197837	99	93	85,6	cyclictest	1258412	-21	kworker/u4:12+events_unbound	21:46:07	1
1197836	99	93	83,7	cyclictest	1391641	-21	kworker/u4:14+events_unbound	00:33:41	0
1197836	99	92	84,6	cyclictest	1404495	-21	kworker/u4:5+events_unbound	00:28:14	0
1197836	99	89	80,7	cyclictest	1333791	-21	kworker/u4:11+events_unbound	23:11:27	0
1197836	99	88	80,6	cyclictest	1381999	-21	kworker/u4:1+events_unbound	00:03:03	0
1197836	99	88	80,6	cyclictest	1338285	-21	kworker/u4:2+events_unbound	23:26:28	0
1197836	99	87	80,5	cyclictest	1208193	-21	kworker/u4:7+events_unbound	19:50:44	0
1197836	99	86	79,5	cyclictest	987967	-21	kworker/u4:11+events_unbound	20:15:48	0
1197836	99	86	78,6	cyclictest	987967	-21	kworker/u4:11+events_unbound	19:40:43	0
1197836	99	86	78,6	cyclictest	1200435	-21	kworker/u4:12+events_unbound	19:25:43	0
1197836	99	80	72,6	cyclictest	1200420	-21	kworker/u4:8+events_unbound	19:30:43	0
1197837	99	77	70,5	cyclictest	1174530	-21	kworker/u4:14+events_unbound	19:45:44	1
1197837	99	77	58,6	cyclictest	1298449	-21	kworker/u4:0+events_unbound	22:36:21	1
1197836	99	75	47,24	cyclictest	1174530	-21	kworker/u4:14+xprtiod	19:45:13	0
1197836	99	73	66,5	cyclictest	1208192	-21	kworker/u4:6+events_unbound	20:55:59	0
1197837	99	72	56,6	cyclictest	1404496	-21	kworker/u4:6+events_unbound	00:28:38	1
1197836	99	71	64,5	cyclictest	1212029	-21	kworker/u4:12+events_unbound	20:35:56	0
1197837	99	68	60,6	cyclictest	1174530	-21	kworker/u4:14+events_unbound	20:40:57	1
1197837	99	68	59,6	cyclictest	1272031	-21	kworker/u4:12+events_unbound	22:11:12	1
1197837	99	67	61,4	cyclictest	1197772	-21	kworker/u4:3+events_unbound	19:15:01	1
1197837	99	67	60,5	cyclictest	1280409	-21	kworker/u4:3+events_unbound	22:26:15	1
1197837	99	65	56,6	cyclictest	1194129	-21	kworker/u4:0+events_unbound	19:20:41	1
1197837	99	64	57,5	cyclictest	1369137	-21	kworker/u4:2+events_unbound	23:52:33	1
1197837	99	64	57,5	cyclictest	1258410	-21	kworker/u4:9+events_unbound	22:16:13	1
1197836	99	64	55,6	cyclictest	1373634	-21	kworker/u4:10+events_unbound	23:57:35	0
1197836	99	62	44,13	cyclictest	53	-21	kswapd0	22:20:01	0
1197837	99	61	54,5	cyclictest	1400006	-21	kworker/u4:0+events_unbound	00:23:39	1
1197837	99	59	53,4	cyclictest	1324777	-21	kworker/u4:1+events_unbound	23:16:27	1
1197837	99	59	45,9	cyclictest	0	-21	swapper/1	21:55:38	1
1197837	99	59	42,7	cyclictest	1391640	-21	kworker/u4:10+events_unbound	00:15:01	1
1197836	99	59	40,17	cyclictest	1273631	-21	basename	22:00:00	0
1197837	99	58	49,7	cyclictest	378	-21	dbus-daemon	22:56:22	1
1197837	99	58	47,8	cyclictest	1274311	-21	fschecks_time	22:00:20	1
1197836	99	58	47,8	cyclictest	1300621	-21	basename	22:30:18	0
1197837	99	57	50,5	cyclictest	1298454	-21	kworker/u4:6+events_unbound	22:31:19	1
1197836	99	56	43,8	cyclictest	0	-21	swapper/0	22:25:32	0
1197837	99	55	2,39	cyclictest	1243264	-21	ssh	21:25:29	1
1197836	99	55	7,14	cyclictest	0	-21	swapper/0	19:15:14	0
1197836	99	55	7,14	cyclictest	0	-21	swapper/0	19:15:13	0
1197836	99	55	49,5	cyclictest	1208192	-21	kworker/u4:6+events_unbound	20:05:01	0
1197836	99	55	45,8	cyclictest	1258404	-21	kworker/u4:1-rpciod	22:05:24	0
1197836	99	55	40,6	cyclictest	1369140	-21	kworker/u4:5+events_unbound	00:21:42	0
1197836	99	55	36,16	cyclictest	53	-21	kswapd0	21:50:08	0
1197837	99	54	5,36	cyclictest	1234300	-21	ssh	21:15:34	1
1197837	99	54	46,6	cyclictest	1174530	-21	kworker/u4:14+events_unbound	21:10:59	1
1197836	99	54	36,14	cyclictest	53	-21	kswapd0	22:20:09	0
1197836	99	54	2,46	cyclictest	0	-21	swapper/0	23:05:11	0
1197836	99	54	2,46	cyclictest	0	-21	swapper/0	23:05:10	0
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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