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Default latency plot of shadow in rack #e, slot #3

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.
Unexpectedly long latencies may be caused by SMIs
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 rackeslot3s.osadl.org (updated Thu Jul 30, 2026 00:45:32)
Delayed (victim)					Switcher (culprit)			Timestamp	CPU
PID	Prio	Total latency (µs)	T^(,W^*) latency (µs)	Cmd	PID	Prio	Cmd	Timestamp	CPU
151664	99	79	33,11	cyclictest	275	-21	dbus-daemon	23:45:00	3
151664	99	69	32,8	cyclictest	157337	-21	sshd	20:59:35	3
151661	99	69	41,10	cyclictest	157112	-21	kworker/2:0	23:08:55	2
151659	99	68	25,34	cyclictest	235926	-21	ssh	23:53:23	0
151659	99	68	24,23	cyclictest	165480	-21	ssh	21:25:28	0
151659	99	68	20,43	cyclictest	168	50	irq/134-8000000	22:19:59	0
151659	99	64	24,36	cyclictest	12	-21	ksoftirqd/0	23:22:15	0
151660	99	63	7,11	cyclictest	23	-21	ksoftirqd/1	21:55:03	1
151659	99	63	23,18	cyclictest	12	-21	ksoftirqd/0	00:14:35	0
151661	99	62	36,9	cyclictest	157112	-21	kworker/2:0	23:01:18	2
151661	99	62	10,11	cyclictest	30	-21	ksoftirqd/2	22:12:00	2
151660	99	62	21,13	cyclictest	23	-21	ksoftirqd/1	20:20:00	1
151660	99	62	16,8	cyclictest	23	-21	ksoftirqd/1	00:24:39	1
151660	99	61	24,9	cyclictest	23	-21	ksoftirqd/1	22:41:43	1
151659	99	61	34,11	cyclictest	205759	-21	ssh	22:50:01	0
151659	99	61	23,29	cyclictest	183590	-21	ssh	22:03:34	0
151659	99	61	23,29	cyclictest	183590	-21	ssh	22:03:34	0
151659	99	61	21,35	cyclictest	168	50	irq/134-8000000	21:10:01	0
151659	99	61	17,38	cyclictest	168	50	irq/134-8000000	00:05:02	0
151660	99	60	16,10	cyclictest	23	-21	ksoftirqd/1	21:30:01	1
151659	99	60	28,23	cyclictest	248212	-21	rm	00:19:08	0
151659	99	60	23,15	cyclictest	178256	-21	rm	21:52:20	0
151659	99	60	16,34	cyclictest	168	50	irq/134-8000000	23:30:00	0
151660	99	59	8,7	cyclictest	23	-21	ksoftirqd/1	21:31:12	1
151660	99	59	8,7	cyclictest	23	-21	ksoftirqd/1	21:31:12	1
151660	99	59	5,9	cyclictest	23	-21	ksoftirqd/1	21:14:39	1
151660	99	59	13,10	cyclictest	23	-21	ksoftirqd/1	00:10:02	1
151659	99	59	41,13	cyclictest	1	-21	systemd	20:55:00	0
151659	99	59	29,14	cyclictest	200102	-21	ssh	22:38:14	0
151659	99	59	29,14	cyclictest	200102	-21	ssh	22:38:14	0
151659	99	59	25,22	cyclictest	180165	-21	ssh	21:56:14	0
151661	99	58	34,8	cyclictest	157112	-21	kworker/2:0	23:56:03	2
151659	99	58	19,18	cyclictest	197232	-21	ssh	22:32:00	0
151660	99	57	7,10	cyclictest	207183	-21	ssh	22:52:56	1
151660	99	57	6,9	cyclictest	23	-21	ksoftirqd/1	22:07:25	1
151659	99	57	2,4	cyclictest	13	1	rcu_preempt	21:39:24	0
151661	99	56	46,6	cyclictest	157112	-21	kworker/2:0	00:13:30	2
151661	99	56	36,7	cyclictest	126577	-21	kworker/2:2	21:32:09	2
151661	99	56	36,7	cyclictest	126577	-21	kworker/2:2	21:32:09	2
151660	99	56	9,14	cyclictest	23	-21	ksoftirqd/1	22:15:02	1
151660	99	56	7,14	cyclictest	23	-21	ksoftirqd/1	21:19:38	1
151660	99	56	4,11	cyclictest	23	-21	ksoftirqd/1	21:50:01	1
151660	99	56	17,10	cyclictest	23	-21	ksoftirqd/1	23:05:01	1
151660	99	56	12,11	cyclictest	23	-21	ksoftirqd/1	00:39:01	1
151660	99	56	12,11	cyclictest	23	-21	ksoftirqd/1	00:39:01	1
151660	99	56	11,7	cyclictest	23	-21	ksoftirqd/1	19:20:02	1
151659	99	56	27,20	cyclictest	12	-21	ksoftirqd/0	00:25:09	0
151659	99	56	27,20	cyclictest	12	-21	ksoftirqd/0	00:25:09	0
151659	99	56	17,35	cyclictest	168	50	irq/134-8000000	23:57:14	0
151664	99	55	34,17	cyclictest	275	-21	dbus-daemon	00:40:00	3
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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