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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
Special All - All RT - Optimization - Ethernet - Thumbnails - Next

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 100 highest latencies:

System rackeslot4s.osadl.org (updated Wed May 13, 2026 12:44:06)
Delayed (victim)					Switcher (culprit)			Timestamp	CPU
PID	Prio	Total latency (µs)	T^(,W^*) latency (µs)	Cmd	PID	Prio	Cmd	Timestamp	CPU
561981	99	69	64,3	cyclictest	805286	-21	gpgv	11:04:59	2
561981	99	64	57,5	cyclictest	758776	-21	latency_hist	10:20:01	2
561984	99	55	51,3	cyclictest	821422	-21	kworker/u8:0+flush-259:0	11:50:23	3
561981	99	53	50,2	cyclictest	816016	-21	kworker/u8:2+flush-259:0	12:35:01	2
561981	99	50	46,3	cyclictest	769310	-21	kworker/u8:0+flush-259:0	11:05:24	2
561979	99	50	44,3	cyclictest	252	-21	systemd-journal	10:54:44	1
561984	99	48	42,4	cyclictest	680901	-21	gpgv	09:05:00	3
561979	99	48	40,5	cyclictest	252	-21	systemd-journal	10:30:01	1
561981	99	47	43,3	cyclictest	769310	-21	kworker/u8:0+flush-259:0	10:40:44	2
561981	99	47	0,45	cyclictest	1	-21	systemd	08:04:59	2
561984	99	46	39,5	cyclictest	674787	-21	ntpq	08:55:22	3
561979	99	46	39,5	cyclictest	847118	-21	latency_hist	11:45:01	1
561981	99	45	40,3	cyclictest	821422	-21	kworker/u8:0+flush-259:0	11:50:21	2
561981	99	44	41,2	cyclictest	798991	-21	kworker/u8:1+events_unbound	10:55:23	2
561981	99	44	41,2	cyclictest	587688	-21	kworker/u8:3+events_unbound	08:14:34	2
561981	99	43	39,3	cyclictest	649933	-21	kworker/u8:0+events_unbound	09:30:00	2
561979	99	43	37,4	cyclictest	816016	-21	kworker/u8:2+flush-259:0	11:54:59	1
561984	99	42	37,4	cyclictest	805194	-21	gpgv	11:05:00	3
561981	99	42	39,2	cyclictest	857885	-21	kworker/u8:3+flush-259:0	12:15:21	2
561981	99	42	37,3	cyclictest	252	-21	systemd-journal	09:16:44	2
561974	99	42	38,3	cyclictest	857885	-21	kworker/u8:3+flush-259:0	12:15:01	0
561981	99	41	38,2	cyclictest	649933	-21	kworker/u8:0+flush-259:0	08:55:20	2
561981	99	40	38,2	cyclictest	798991	-21	kworker/u8:1+flush-259:0	11:30:24	2
561974	99	40	34,4	cyclictest	810802	-21	cat	11:10:00	0
561974	99	40	33,5	cyclictest	676071	-21	diskstats	09:00:14	0
561984	99	39	35,3	cyclictest	649933	-21	kworker/u8:0+events_unbound	09:30:03	3
561981	99	39	36,2	cyclictest	857885	-21	kworker/u8:3+flush-259:0	12:00:21	2
561974	99	39	36,2	cyclictest	727726	-21	kworker/u8:2+events_unbound	09:55:21	0
561974	99	39	35,3	cyclictest	769310	-21	kworker/u8:0+flush-259:0	11:10:17	0
561974	99	39	35,3	cyclictest	727726	-21	kworker/u8:2+events_unbound	09:48:43	0
561981	99	38	35,2	cyclictest	789442	-21	kworker/u8:3+events_unbound	10:48:43	2
561981	99	38	34,3	cyclictest	556567	-21	kworker/u8:1+events_unbound	08:15:43	2
561974	99	38	34,3	cyclictest	587688	-21	kworker/u8:3+events_unbound	08:12:43	0
561974	99	38	34,3	cyclictest	556567	-21	kworker/u8:1+events_unbound	07:56:44	0
561974	99	38	31,5	cyclictest	654136	-21	ntpq	08:35:18	0
561984	99	37	30,5	cyclictest	888784	-21	latency_hist	12:25:01	3
561981	99	37	33,3	cyclictest	252	-21	systemd-journal	10:24:42	2
561981	99	37	32,4	cyclictest	893999	-21	gpgv	12:30:01	2
561974	99	37	33,3	cyclictest	816016	-21	kworker/u8:2+events_unbound	12:32:44	0
561974	99	37	33,3	cyclictest	800183	-21	apt-get	11:00:12	0
561974	99	37	33,3	cyclictest	587688	-21	kworker/u8:3+flush-259:0	08:20:25	0
561974	99	37	30,5	cyclictest	799062	-21	ntpq	10:55:20	0
561974	99	37	0,35	cyclictest	1	-21	systemd	12:20:00	0
561984	99	36	32,3	cyclictest	649933	-21	kworker/u8:0+events_unbound	08:53:46	3
561984	99	36	31,3	cyclictest	851777	-21	ntpq	11:45:20	3
561984	99	36	30,4	cyclictest	252	-21	systemd-journal	10:45:00	3
561981	99	36	32,3	cyclictest	816016	-21	kworker/u8:2+flush-259:0	11:40:00	2
561979	99	36	31,4	cyclictest	816016	-21	kworker/u8:2+flush-259:0	11:30:00	1
561979	99	36	31,4	cyclictest	816016	-21	kworker/u8:2+flush-259:0	11:29:59	1
561974	99	36	32,3	cyclictest	695745	-21	ntpq	09:15:22	0
561974	99	36	32,3	cyclictest	649933	-21	kworker/u8:0+events_unbound	08:45:44	0
561981	99	35	32,2	cyclictest	649933	-21	kworker/u8:0+flush-259:0	09:20:22	2
561979	99	35	29,4	cyclictest	904698	-21	apt-get	12:40:01	1
561974	99	35	32,2	cyclictest	727726	-21	kworker/u8:2+events_unbound	10:06:44	0
561984	99	34	31,2	cyclictest	769310	-21	kworker/u8:0+events_unbound	11:08:44	3
561984	99	34	31,2	cyclictest	738202	-21	kworker/u8:0+events_unbound	10:13:43	3
561981	99	34	31,2	cyclictest	556567	-21	kworker/u8:1+flush-259:0	07:55:22	2
561984	99	33	30,2	cyclictest	763928	-21	kworker/u8:1+events_unbound	10:30:01	3
561981	99	33	30,2	cyclictest	2689394	-21	kworker/u8:0+events_unbound	07:25:18	2
561981	99	33	29,3	cyclictest	649933	-21	kworker/u8:0+events_unbound	09:05:15	2
561981	99	33	29,3	cyclictest	252	-21	systemd-journal	11:19:59	2
561981	99	33	23,3	cyclictest	696675	-21	kworker/u8:3+events_unbound	10:05:21	2
561979	99	33	25,5	cyclictest	582503	-21	latency_hist	07:30:02	1
561974	99	33	30,2	cyclictest	587688	-21	kworker/u8:3+flush-259:0	07:50:00	0
561974	99	33	29,3	cyclictest	696675	-21	kworker/u8:3+events_unbound	09:54:57	0
561974	99	33	29,3	cyclictest	556567	-21	kworker/u8:1+flush-259:0	07:30:00	0
561984	99	32	29,2	cyclictest	816016	-21	kworker/u8:2+flush-259:0	11:15:22	3
561981	99	32	29,2	cyclictest	659986	-21	kworker/u8:2+flush-259:0	08:44:59	2
561981	99	32	29,2	cyclictest	649933	-21	kworker/u8:0+events_unbound	08:45:23	2
561981	99	32	29,2	cyclictest	556567	-21	kworker/u8:1+flush-259:0	07:45:44	2
561981	99	32	28,3	cyclictest	649933	-21	kworker/u8:0+events_unbound	09:10:21	2
561981	99	32	27,3	cyclictest	252	-21	systemd-journal	12:36:43	2
561974	99	32	28,3	cyclictest	727726	-21	kworker/u8:2+events_unbound	10:10:02	0
561974	99	32	28,3	cyclictest	556567	-21	kworker/u8:1+events_unbound	09:05:42	0
561984	99	31	28,2	cyclictest	717271	-21	kworker/u8:1+events_unbound	09:45:22	3
561984	99	31	27,3	cyclictest	899275	-21	kworker/u8:4+events_unbound	12:33:44	3
561984	99	31	27,3	cyclictest	587688	-21	kworker/u8:3+events_unbound	07:59:34	3
561981	99	31	28,2	cyclictest	696675	-21	kworker/u8:3+flush-259:0	10:00:21	2
561981	99	31	28,2	cyclictest	680812	-21	gpgv	09:05:00	2
561979	99	31	26,4	cyclictest	816454	-21	apt-get	11:15:11	1
561979	99	31	25,4	cyclictest	696675	-21	kworker/u8:3+flush-259:0	10:00:16	1
561979	99	31	25,3	cyclictest	779351	-21	latency_hist	10:40:00	1
561974	99	31	28,2	cyclictest	769310	-21	kworker/u8:0+flush-259:0	10:40:23	0
561984	99	30	27,2	cyclictest	857885	-21	kworker/u8:3+flush-259:0	12:25:16	3
561984	99	30	27,2	cyclictest	763928	-21	kworker/u8:1+flush-259:0	10:30:21	3
561984	99	30	26,3	cyclictest	556567	-21	kworker/u8:1+events_unbound	08:49:43	3
561974	99	30	26,3	cyclictest	857885	-21	kworker/u8:3+flush-259:0	12:25:21	0
561974	99	30	26,3	cyclictest	857885	-21	kworker/u8:3+events_unbound	11:56:45	0
561974	99	30	26,3	cyclictest	686392	-21	kworker/u8:2+events_unbound	09:20:01	0
561984	99	29	26,2	cyclictest	816016	-21	kworker/u8:2+events_unbound	11:40:20	3
561984	99	29	25,3	cyclictest	878213	-21	kworker/u8:0+events_unbound	12:17:44	3
561984	99	29	24,3	cyclictest	252	-21	systemd-journal	07:22:43	3
561984	99	29	23,5	cyclictest	252	-21	systemd-journal	08:04:59	3
561981	99	29	26,2	cyclictest	857885	-21	kworker/u8:3+events_unbound	12:20:22	2
561979	99	29	25,3	cyclictest	556567	-21	kworker/u8:1+flush-259:0	09:05:10	1
561974	99	29	26,2	cyclictest	899275	-21	kworker/u8:4+events_unbound	12:35:13	0
561974	99	29	25,3	cyclictest	722361	-21	latency_hist	09:45:01	0
561974	99	29	25,3	cyclictest	686392	-21	kworker/u8:2+events_unbound	09:29:45	0
561974	99	29	22,5	cyclictest	716318	-21	ntpq	09:35:21	0
561984	99	28	25,2	cyclictest	763928	-21	kworker/u8:1+flush-259:0	10:35:20	3
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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