OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #e, slot #4

Rack #0/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #1/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #2/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #3/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #4/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #5/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #6/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #7/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #8/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #9/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #a/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #b/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #c/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #d/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #e/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #f/#0 #1 #2 #3 #4 #5 #6 #7 #8
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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 rackeslot4s.osadl.org (updated Fri Nov 22, 2024 00:44:05)
Delayed (victim)					Switcher (culprit)			Timestamp	CPU
PID	Prio	Total latency (µs)	T^(,W^*) latency (µs)	Cmd	PID	Prio	Cmd	Timestamp	CPU
2615582	99	41	38,2	cyclictest	2620323	-21	kworker/u8:3+events_unbound	19:20:00	3
2615579	99	41	37,2	cyclictest	2874695	-21	fwupd	23:18:57	2
2615582	99	37	32,3	cyclictest	2818118	-21	kworker/u8:0+flush-259:0	23:00:12	3
2615582	99	37	30,5	cyclictest	2713487	-21	latency_hist	20:45:00	3
2615579	99	37	32,3	cyclictest	2645584	-21	ntpq	19:35:21	2
2615582	99	36	33,2	cyclictest	2703210	-21	kworker/u8:1+events_unbound	21:05:24	3
2615582	99	35	31,3	cyclictest	2750165	-21	kworker/u8:1+events_unbound	22:35:22	3
2615582	99	34	31,2	cyclictest	2890515	-21	kworker/u8:3+events_unbound	00:00:23	3
2615582	99	34	30,3	cyclictest	2801199	-21	kworker/u8:0+flush-259:0	22:10:21	3
2615582	99	34	30,3	cyclictest	2750165	-21	kworker/u8:1+events_unbound	22:30:22	3
2615582	99	34	30,3	cyclictest	2583539	-21	kworker/u8:2+events_unbound	19:30:23	3
2615582	99	33	30,2	cyclictest	2942390	-21	kworker/u8:1+flush-259:0	00:35:24	3
2615582	99	33	30,2	cyclictest	2818118	-21	kworker/u8:0+flush-259:0	22:55:20	3
2615579	99	33	28,3	cyclictest	2890515	-21	kworker/u8:3+flush-259:0	00:15:00	2
2615582	99	32	29,2	cyclictest	2833216	-21	kworker/u8:2+flush-259:0	23:30:29	3
2615582	99	32	29,2	cyclictest	2766052	-21	kworker/u8:3+events_unbound	21:50:17	3
2615582	99	31	28,2	cyclictest	2890515	-21	kworker/u8:3+events_unbound	23:55:24	3
2615582	99	31	28,2	cyclictest	2766052	-21	kworker/u8:3+flush-259:0	21:40:22	3
2615582	99	31	28,2	cyclictest	2766052	-21	kworker/u8:3+events_unbound	21:55:21	3
2615582	99	31	26,2	cyclictest	2703210	-21	kworker/u8:1+events_unbound	21:10:21	3
2615582	99	30	27,2	cyclictest	2895463	-21	kworker/u8:4+events_unbound	23:45:01	3
2615582	99	30	27,2	cyclictest	2895463	-21	kworker/u8:4+events_unbound	23:45:00	3
2615582	99	30	27,2	cyclictest	2682562	-21	kworker/u8:4+flush-259:0	20:25:21	3
2615577	99	30	25,4	cyclictest	2837431	-21	ntpq	22:40:20	1
2615582	99	29	26,2	cyclictest	2901309	-21	kworker/u8:0+events_unbound	00:05:25	3
2615582	99	29	26,2	cyclictest	2677418	-21	kworker/u8:3+flush-259:0	20:45:22	3
2615579	99	29	25,3	cyclictest	2766052	-21	kworker/u8:3+flush-259:0	22:20:18	2
2615579	99	29	22,5	cyclictest	2838326	-21	latency_hist	22:45:01	2
2615582	99	28	25,2	cyclictest	2901310	-21	kworker/u8:5+events_unbound	00:20:24	3
2615582	99	28	25,2	cyclictest	2729400	-21	kworker/u8:0+events_unbound	21:00:16	3
2615582	99	28	24,2	cyclictest	2583539	-21	kworker/u8:2+events_unbound	19:25:21	3
2615577	99	28	22,4	cyclictest	1117191	-21	systemd-journal	22:10:01	1
2615582	99	27	24,2	cyclictest	2677418	-21	kworker/u8:3+events_unbound	20:35:14	3
2615582	99	27	24,2	cyclictest	2620323	-21	kworker/u8:3+flush-259:0	19:40:27	3
2615582	99	27	24,2	cyclictest	2605348	-21	kworker/u8:0+events_unbound	20:20:23	3
2615572	99	27	21,4	cyclictest	1117191	-21	systemd-journal	20:30:00	0
2615572	99	27	0,26	cyclictest	1	-21	systemd	00:40:00	0
2615572	99	27	0,25	cyclictest	1	-21	systemd	19:40:00	0
2615582	99	26	23,2	cyclictest	2901310	-21	kworker/u8:5+events_unbound	00:25:15	3
2615582	99	26	23,2	cyclictest	2895463	-21	kworker/u8:4+events_unbound	23:50:12	3
2615582	99	26	23,2	cyclictest	2833216	-21	kworker/u8:2+flush-259:0	23:25:23	3
2615582	99	26	23,2	cyclictest	2605348	-21	kworker/u8:0+flush-259:0	19:55:24	3
2615582	99	26	22,3	cyclictest	2833216	-21	kworker/u8:2+events_unbound	23:05:18	3
2615582	99	26	20,4	cyclictest	2682562	-21	kworker/u8:4+flush-259:0	20:30:16	3
2615579	99	26	21,3	cyclictest	2880220	-21	apt-get	23:25:10	2
2615577	99	26	20,4	cyclictest	2906746	-21	/usr/sbin/munin	23:55:13	1
2615577	99	26	19,5	cyclictest	2811692	-21	ntpq	22:15:21	1
2615582	99	25	22,2	cyclictest	2729400	-21	kworker/u8:0+events_unbound	21:30:27	3
2615582	99	25	22,2	cyclictest	2703210	-21	kworker/u8:1+flush-259:0	20:55:21	3
2615582	99	25	21,3	cyclictest	2766052	-21	kworker/u8:3+events_unbound	22:20:16	3
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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This page was last modified on 2021-09-01 - 00:34