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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 all highest latencies:

System rackfslot4s.osadl.org (updated Tue Jun 16, 2026 00:44:34)
Delayed (victim)					Switcher (culprit)			Timestamp	CPU
PID	Prio	Total latency (µs)	T^(,W^*) latency (µs)	Cmd	PID	Prio	Cmd	Timestamp	CPU
30065	2	130	0,3	sleep0	30066	-21	chrt	21:53:08	0
23971	2	124	0,2	chrt	23973	-21	fschecks_count	20:55:35	0
15906	2	124	0,3	chrt	15895	-21	hddtemp_smartct	22:20:57	0
26595	2	122	0,2	chrt	26588	-21	ntpq	19:16:06	0
18789	2	115	0,3	chrt	18786	-21	memory	19:55:48	0
20206	2	114	0,2	chrt	20195	-21	ntpq	22:27:05	0
9936	2	113	0,2	chrt	9934	-21	grep	00:37:15	0
25429	2	112	0,2	sleep0	25430	-21	chrt	23:24:07	0
4228	2	110	0,3	chrt	4230	-21	cut	23:40:51	0
3734	2	110	0,2	chrt	3733	-21	sed	22:51:06	0
32110	2	110	0,2	sleep0	32113	-21	timerwakeupswit	21:07:19	0
19588	2	110	0,2	chrt	19589	-21	sleep	20:48:11	0
6342	2	109	0,2	chrt	6343	-21	sleep	00:31:53	0
28994	2	108	0,3	chrt	28997	-21	sed	20:11:37	0
4678	2	106	0,2	chrt	4679	-21	sleep	20:24:55	0
32729	2	106	0,3	chrt	32730	-21	sleep	00:22:39	0
8442	2	105	0,2	chrt	8441	-21	ls	19:40:03	0
20851	2	103	0,2	sleep0	20852	-21	sh	00:05:34	0
11142	2	100	0,2	chrt	11143	-21	sh	22:13:41	0
15250	2	93	0,1	sleep0	15253	-21	sed	23:56:51	0
14733	2	88	0,2	sleep0	14734	-21	basename	21:30:49	0
12150	2	86	0,2	chrt	12134	-21	ntpq	20:35:54	0
9948	2	83	0,1	sleep0	9947	-21	seq	23:49:13	0
1728	2	81	0,2	sleep0	1722	-21	sh	22:00:01	0
3683	2	80	0,2	sleep0	3685	-21	cut	19:31:22	0
31945	2	78	0,2	sleep0	31948	-21	grep	20:15:52	0
25475	2	78	0,2	sleep0	25477	-21	uname	21:46:11	0
27795	2	77	0,2	sleep0	27796	-21	grep	00:15:51	0
20097	2	77	0,2	sleep0	20098	-21	chrt	21:38:10	0
6240	2	74	0,1	sleep0	6239	-21	cut	22:55:34	0
22654	2	74	0,1	sleep0	22655	-21	if_eth0	22:31:01	0
30405	2	73	0,2	sleep0	30406	-21	grep	23:31:48	0
32389	2	71	0,2	sleep0	32392	-21	cut	19:25:44	0
18530	2	70	0,1	sleep0	18531	-21	seq	23:13:35	0
9809	2	69	0,2	sleep0	9810	-21	chrt	21:22:50	0
21526	2	69	13,44	sleep0	0	-21	swapper	19:08:25	0
3001	2	67	0,2	sleep0	3003	-21	ssh	23:38:55	0
2283	2	67	0,2	sleep0	2288	-21	cpu	22:00:35	0
13258	2	64	0,2	sleep0	13259	-21	tune2fs	23:05:52	0
1946	2	61	0,1	sleep0	1947	-21	chrt	22:48:38	0
11830	2	60	4,8	sleep0	11841	-21	ntpq	23:51:33	0
10917	2	60	0,2	sleep0	10918	-21	ssh	21:25:09	0
6300	2	59	3,46	sleep0	6294	-21	users	21:17:33	0
14561	2	58	6,8	sleep0	14564	-21	runrttasks	19:50:01	0
25275	2	57	0,2	sleep0	25276	-21	chrt	22:35:22	0
22746	2	57	3,8	sleep0	22755	-21	ld	21:42:08	0
13469	2	56	3,7	sleep0	13471	-21	ntpq	22:16:58	0
27663	2	54	2,44	sleep0	27668	-21	ntpq	23:27:08	0
21095	2	54	3,9	sleep0	21152	-21	awk	20:00:11	0
17597	2	53	0,1	sleep0	17598	-21	seq	19:54:56	0
9630	2	52	3,6	sleep0	9638	-21	ssh	23:00:35	0
23441	2	52	4,8	sleep0	23450	-21	ntpq	19:11:01	0
28986	2	51	0,3	sleep0	28984	-21	ssh	22:40:43	0
20706	2	51	2,7	sleep0	20693	-21	ssh	23:16:36	0
18499	2	51	3,7	sleep0	18490	-21	ssh	00:01:18	0
22181	90	47	18,22	cyclictest	0	-21	swapper	00:28:17	0
22181	90	47	18,22	cyclictest	0	-21	swapper	00:13:41	0
21702	2	47	0,1	sleep0	21703	-21	seq	20:51:13	0
27564	2	45	0,3	chrt	27565	-21	runrttasks	20:10:06	0
22181	90	45	18,20	cyclictest	0	-21	swapper	21:14:56	0
22181	90	45	17,20	cyclictest	0	-21	swapper	22:07:27	0
22181	90	44	5,11	cyclictest	10152	-21	users	19:41:28	0
22181	90	43	6,10	cyclictest	5878	-21	memory	20:25:49	0
22181	90	42	5,9	cyclictest	26836	-21	apt-get	21:00:59	0
22181	90	41	4,28	cyclictest	9639	-21	users	20:31:29	0
22181	90	40	4,18	cyclictest	15365	-21	ntpq	20:41:03	0
22181	90	38	4,26	cyclictest	29719	-21	ntpq	19:21:11	0
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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