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Default latency plot of shadow in rack #f, 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 highest latencies:

System rackfslot4s.osadl.org (updated Mon Sep 28, 2026 12:44:35)
Delayed (victim)					Switcher (culprit)			Timestamp	CPU
PID	Prio	Total latency (µs)	T^(,W^*) latency (µs)	Cmd	PID	Prio	Cmd	Timestamp	CPU
19993	2	131	0,2	sleep0	19994	-21	rm	12:00:07	0
32300	2	130	0,2	chrt	32301	-21	ssh	12:18:09	0
15639	2	126	0,3	chrt	15634	-21	awk	11:05:00	0
10781	2	125	0,2	chrt	10782	-21	seq	10:57:02	0
1549	2	121	0,2	chrt	1540	-21	ntp_states	07:21:10	0
20885	2	120	0,2	chrt	20886	-21	runrttasks	10:23:50	0
16170	2	119	0,2	sleep0	16174	-21	seq	11:54:14	0
6264	2	117	0,3	chrt	6262	-21	/usr/sbin/munin	10:01:23	0
3712	2	116	0,3	chrt	3711	-21	ls	10:46:15	0
5720	2	115	0,2	chrt	5715	-21	ntpq	09:12:19	0
30982	2	113	0,2	chrt	30983	-21	chrt	09:50:32	0
29350	2	113	0,3	chrt	28015	-21	apt-get	10:36:44	0
23927	2	113	0,3	chrt	23928	-21	chrt	08:50:04	0
12492	2	113	0,2	sleep0	12495	-21	processes	09:22:20	0
25445	2	112	0,2	chrt	25446	-21	ld	09:41:26	0
9978	2	109	0,2	chrt	9979	-21	chrt	12:33:37	0
5247	2	109	0,2	chrt	5249	-21	tail	08:20:24	0
26453	2	109	0,3	chrt	26454	-21	runrttasks	08:01:16	0
18940	2	109	0,2	chrt	18939	-21	seq	11:57:55	0
16712	2	109	0,3	chrt	16713	-21	sh	08:37:37	0
2484	2	108	0,2	chrt	2483	-21	tune2fs	08:15:36	0
23554	2	108	0,2	sleep0	23555	-21	seq	09:39:06	0
14538	2	108	0,2	chrt	14539	-21	sleep	07:41:55	0
3626	2	94	0,2	sleep0	3627	-21	cat	09:57:20	0
27029	2	90	0,1	sleep0	27028	-21	seq	12:10:36	0
15199	2	88	0,2	sleep0	15201	-21	cut	10:15:36	0
23018	2	84	0,2	sleep0	23015	-21	aten2.4_rfpower	11:15:53	0
26363	2	82	10,56	sleep0	26345	-21	munin-run	07:10:03	0
2137	2	81	0,2	sleep0	2138	-21	sh	09:06:15	0
10545	2	80	0,2	chrt	10492	-21	/usr/sbin/munin	09:20:05	0
9978	2	78	0,2	sleep0	9977	-21	ls	11:45:05	0
4834	2	77	0,2	sleep0	4838	-21	sendmail_mailqu	07:26:25	0
21856	2	76	0,2	sleep0	21859	-21	wc	08:45:48	0
26757	2	75	0,2	sleep0	26759	-21	chrt	11:21:04	0
26393	90	75	4,59	cyclictest	8931	-21	ps	08:25:42	0
26393	90	73	5,57	cyclictest	19123	-21	ntpq	08:41:22	0
26393	90	73	5,47	cyclictest	4588	-21	diskstats	12:25:44	0
26393	90	73	4,58	cyclictest	22270	-21	ssh	10:26:00	0
26393	90	72	6,55	cyclictest	12587	-21	ntp_states	08:31:12	0
26393	90	72	6,54	cyclictest	3422	-21	apt-get	11:35:19	0
26393	90	72	5,55	cyclictest	24869	-21	/usr/sbin/munin	10:30:49	0
26393	90	72	5,49	cyclictest	11699	-21	sleep	11:47:02	0
26393	90	72	5,46	cyclictest	13257	-21	users	12:38:11	0
26393	90	71	7,53	cyclictest	844	-21	apt-get	12:20:22	0
26393	90	71	6,54	cyclictest	14018	-21	apt-get	09:25:26	0
26393	90	71	5,58	cyclictest	1147	-21	cut	11:31:08	0
26393	90	71	5,57	cyclictest	17170	-21	apt-get	09:31:00	0
26393	90	71	5,56	cyclictest	19975	-21	ntpq	07:50:54	0
26393	90	71	5,56	cyclictest	17311	-21	ssh	11:06:51	0
26393	90	71	5,56	cyclictest	16907	-21	ntpq	07:45:56	0
26393	90	71	5,56	cyclictest	12741	-21	memory	10:11:14	0
26393	90	71	4,57	cyclictest	19147	-21	seq	11:10:15	0
26393	90	71	4,47	cyclictest	7315	-21	runrttasks	09:46:15	0
26393	90	70	6,55	cyclictest	32400	-21	/usr/sbin/munin	10:41:00	0
26393	90	70	5,56	cyclictest	32647	-21	grep	07:20:03	0
26393	90	70	5,55	cyclictest	25330	-21	users	12:07:21	0
26393	90	70	4,57	cyclictest	26896	-21	runrttasks	07:10:34	0
26393	90	70	4,56	cyclictest	412	-21	snmpd	11:25:22	0
26393	90	70	4,56	cyclictest	23984	-21	sshd	07:57:22	0
26393	90	70	4,45	cyclictest	8734	-21	diskstats	10:05:45	0
26393	90	70	3,48	cyclictest	28270	-21	apt-get	08:05:18	0
26393	90	70	10,52	cyclictest	436	-21	runrttasks	09:04:14	0
26393	90	69	5,55	cyclictest	6843	-21	df	07:30:31	0
26393	90	69	4,55	cyclictest	436	-21	runrttasks	08:10:31	0
26393	90	68	5,54	cyclictest	9914	-21	cpuspeed	07:35:27	0
26393	90	68	5,54	cyclictest	27062	-21	seq	08:55:09	0
26393	90	67	5,42	cyclictest	7810	-21	ssh	10:52:20	0
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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This page was last modified on 2024-02-27 - 12:39