OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of system in rack #0, 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.
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 50 highest latencies:

System rack0slot2.osadl.org (updated Tue Jul 16, 2024 00:43:30)
Delayed (victim)					Switcher (culprit)			Timestamp	CPU
PID	Prio	Total latency (µs)	T^(,W^*) latency (µs)	Cmd	PID	Prio	Cmd	Timestamp	CPU
1610876	2	63	52,6	sleep7	0	-21	swapper/7	18:58:30	7
1610876	2	63	52,6	sleep7	0	-21	swapper/7	18:58:30	7
26791	89	50	0,30	rtkit-daemon	0	-21	swapper/4	18:59:44	4
26791	89	50	0,30	rtkit-daemon	0	-21	swapper/4	18:59:44	4
1620115	99	45	43,2	cyclictest	1906614	-21	kworker/u16:3+flush-8:0	22:13:55	4
1620116	99	39	37,2	cyclictest	1848767	-21	kworker/u16:4+flush-8:0	21:12:26	5
1619581	2	35	25,7	sleep5	0	-21	swapper/5	19:00:13	5
1619581	2	35	25,7	sleep5	0	-21	swapper/5	19:00:13	5
1619562	2	32	21,8	sleep6	0	-21	swapper/6	18:59:57	6
1619562	2	32	21,8	sleep6	0	-21	swapper/6	18:59:57	6
1620115	99	30	28,2	cyclictest	1956125	-21	kworker/u16:0+flush-8:0	22:33:32	4
1620115	99	30	28,2	cyclictest	1906614	-21	kworker/u16:3+events_unbound	21:49:42	4
1620118	99	25	0,23	cyclictest	0	-21	swapper/7	20:20:43	7
1620116	99	24	22,2	cyclictest	2054239	-21	kworker/u16:3+flush-8:0	22:58:33	5
1620116	99	24	22,2	cyclictest	1741564	-21	kworker/u16:1+events_unbound	20:15:25	5
1620116	99	24	22,2	cyclictest	1721566	-21	kworker/u16:0+flush-8:0	20:03:11	5
1620115	99	24	20,3	cyclictest	1609756	-21	kworker/u16:2+events_unbound	19:53:31	4
1620118	99	23	15,7	cyclictest	0	-21	swapper/7	20:31:55	7
1620116	99	23	21,2	cyclictest	1996085	-21	kworker/u16:1+events_unbound	22:13:54	5
1620116	99	23	21,2	cyclictest	1848767	-21	kworker/u16:4+events_unbound	21:03:59	5
1620116	99	23	21,2	cyclictest	1721566	-21	kworker/u16:0+flush-8:0	20:08:42	5
1620115	99	23	21,2	cyclictest	1566214	-21	kworker/u16:5+flush-8:0	19:03:36	4
1620118	99	22	13,8	cyclictest	0	-21	swapper/7	21:45:33	7
1620116	99	22	20,2	cyclictest	1906614	-21	kworker/u16:3+events_unbound	22:03:56	5
1620115	99	22	20,2	cyclictest	1848767	-21	kworker/u16:4+events_unbound	20:59:01	4
1620115	99	22	20,2	cyclictest	1721566	-21	kworker/u16:0+flush-8:0	20:13:51	4
1620115	99	22	19,2	cyclictest	1721566	-21	kworker/u16:0+flush-8:0	19:58:35	4
1620117	99	21	17,3	cyclictest	26754	-10	wireplumber	21:12:24	6
1620116	99	21	19,2	cyclictest	2161723	-21	kworker/u16:3+flush-8:0	23:58:32	5
1620116	99	21	19,2	cyclictest	2112882	-21	kworker/u16:2+events_unbound	23:23:27	5
1620116	99	21	19,2	cyclictest	2075100	-21	kworker/u16:1+events_unbound	00:15:36	5
1620116	99	21	19,2	cyclictest	1741564	-21	kworker/u16:1+flush-8:0	20:03:30	5
1620116	99	21	19,2	cyclictest	1609756	-21	kworker/u16:2+flush-8:0	19:33:36	5
1620116	99	21	19,2	cyclictest	1609756	-21	kworker/u16:2+flush-8:0	19:33:36	5
1620115	99	21	19,2	cyclictest	2172640	-21	kworker/u16:0+events_unbound	23:48:49	4
1620115	99	21	19,2	cyclictest	2172640	-21	kworker/u16:0+events_unbound	23:48:49	4
1620115	99	21	19,2	cyclictest	2054239	-21	kworker/u16:3+flush-8:0	22:43:41	4
1620115	99	21	19,2	cyclictest	1877636	-21	kworker/u16:1+flush-8:0	21:33:10	4
1620115	99	21	19,2	cyclictest	1619551	-21	kworker/u16:3+flush-8:0	19:38:31	4
1620116	99	20	18,2	cyclictest	1996085	-21	kworker/u16:1+events_unbound	22:18:49	5
1620116	99	20	18,2	cyclictest	1877636	-21	kworker/u16:1+events_unbound	21:33:49	5
1620116	99	20	17,2	cyclictest	1760402	-21	kworker/u16:2+flush-8:0	21:38:43	5
1620116	99	20	17,2	cyclictest	1760402	-21	kworker/u16:2+flush-8:0	21:38:43	5
1620116	99	20	16,3	cyclictest	1682621	-21	latency_hist	19:33:16	5
1620116	99	20	16,3	cyclictest	1682621	-21	latency_hist	19:33:16	5
1620115	99	20	18,2	cyclictest	2217866	-21	kworker/u16:0+events_unbound	00:06:07	4
1620115	99	20	18,2	cyclictest	2132926	-21	kworker/u16:0+flush-8:0	23:28:30	4
1620115	99	20	18,2	cyclictest	2054239	-21	kworker/u16:3+flush-8:0	23:18:42	4
1620115	99	20	18,2	cyclictest	2054239	-21	kworker/u16:3+flush-8:0	22:53:53	4
1620115	99	20	18,2	cyclictest	1906614	-21	kworker/u16:3+events_unbound	21:58:30	4
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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