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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 792 highest latencies:

System rackfslot4s.osadl.org (updated Mon Apr 27, 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
17981	2	121	0,2	chrt	17982	-21	sleep	12:29:26	0
3521	2	120	0,3	chrt	3522	-21	runrttasks	09:41:53	0
22139	2	118	0,2	chrt	22136	-21	irqstats	09:21:10	0
6351	2	117	0,2	sleep0	6352	-21	seq	10:34:58	0
26073	2	115	0,3	chrt	26075	-21	grep	10:15:36	0
4824	2	114	0,2	chrt	4825	-21	runrttasks	12:10:06	0
22131	2	114	0,2	chrt	22132	-21	seq	07:37:21	0
7575	2	113	0,2	chrt	7576	-21	runrttasks	12:13:24	0
16669	2	113	0,2	chrt	16670	-21	runrttasks	09:13:05	0
13482	2	113	0,2	sleep0	13483	-21	runrttasks	11:33:51	0
29419	2	111	0,2	chrt	29422	-21	grep	10:20:36	0
15833	2	111	0,2	chrt	15834	-21	sleep	07:27:39	0
7157	2	110	0,2	chrt	7158	-21	rm	11:24:36	0
22964	2	109	0,3	chrt	22965	-21	sh	12:36:19	0
23147	2	107	0,2	sleep0	23148	-21	wc	11:00:05	0
30874	2	106	0,2	chrt	30875	-21	sh	11:11:06	0
28697	2	104	0,3	chrt	28699	-21	cut	09:31:08	0
12767	2	104	0,3	chrt	12768	-21	runrttasks	10:44:23	0
30966	2	103	0,3	chrt	30967	-21	sh	08:44:46	0
10137	2	103	0,2	chrt	10138	-21	runrttasks	11:28:46	0
17582	2	102	0,3	chrt	17583	-21	sleep	08:22:04	0
24508	2	100	0,2	sleep0	24509	-21	ssh	09:25:27	0
26719	2	98	0,2	sleep0	26721	-21	awk	11:05:32	0
24162	2	91	0,2	sleep0	24163	-21	irqrtprio	11:01:05	0
32676	2	88	0,2	sleep0	32677	-21	chrt	09:36:58	0
21383	2	84	0,2	sleep0	21384	-21	runrttasks	12:34:39	0
16927	2	80	0,1	sleep0	16928	-21	chrt	07:30:21	0
14442	2	80	0,2	sleep0	14443	-21	chrt	12:23:53	0
23220	2	79	0,2	sleep0	23221	-21	seq	11:48:17	0
13044	2	77	0,2	sleep0	13046	-21	uniq	08:15:36	0
11767	2	76	0,1	sleep0	11768	-21	runrttasks	09:54:39	0
4774	2	75	0,2	sleep0	4773	-21	grep	08:01:23	0
20894	2	75	0,1	sleep0	20892	-21	timerandwakeup	10:07:23	0
18498	2	75	0,2	sleep0	18500	-21	chrt	09:16:05	0
5040	2	73	0,2	sleep0	5041	-21	chrt	08:55:18	0
18247	2	73	0,1	sleep0	18250	-21	open_files	10:52:11	0
6886	2	69	0,3	sleep0	6887	-21	seq	09:46:38	0
6643	2	67	0,2	sleep0	6644	-21	aten2.4_rfpower	08:05:26	0
27196	2	67	0,1	sleep0	27200	-21	sed	07:45:43	0
26110	2	66	0,2	sleep0	26111	-21	seq	08:35:56	0
1319	2	66	0,2	sleep0	1320	-21	chrt	12:04:43	0
29024	2	64	0,2	sleep0	29025	-21	ld	11:56:56	0
1735	2	62	5,9	sleep0	1740	-21	irqstats	11:16:07	0
13237	2	59	0,2	sleep0	13251	-21	ls	09:56:40	0
12201	2	59	3,7	sleep0	12204	-21	memory	09:05:50	0
8071	2	57	3,45	sleep0	8064	-21	ntpq	10:36:47	0
27052	2	56	4,6	sleep0	27057	-21	ssh	11:54:33	0
10004	2	56	3,45	sleep0	9996	-21	ntpq	12:16:56	0
4908	2	54	0,1	sleep0	4909	-21	cat	08:55:02	0
11779	2	54	3,42	sleep0	11776	-21	ntpq	07:21:20	0
18876	2	53	3,6	sleep0	18831	-21	apt-get	08:25:21	0
16851	2	53	2,6	sleep0	16853	-21	ssh	10:01:19	0
25563	2	52	0,2	sleep0	25564	-21	runrttasks	10:15:03	0
30484	2	51	0,2	sleep0	30485	-21	/usr/sbin/munin	07:50:47	0
10758	2	51	3,41	sleep0	10753	-21	ntpq	08:11:13	0
8176	2	50	3,8	sleep0	8123	-21	apt-get	09:00:20	0
2285	2	50	12,21	sleep0	2284	-21	ntpq	07:05:58	0
8412	2	47	3,35	sleep0	8415	-21	ntpq	07:15:58	0
23377	2	46	0,2	chrt	23378	-21	runrttasks	07:40:21	0
1557	2	46	0,3	chrt	1558	-21	sh	10:27:01	0
4080	90	45	4,11	cyclictest	17493	-21	apt	11:40:10	0
4080	90	43	16,20	cyclictest	0	-21	swapper	11:38:01	0
4080	90	42	4,10	cyclictest	15235	-21	/usr/sbin/munin	10:47:20	0
4080	90	40	5,8	cyclictest	5315	-21	ntpq	07:10:58	0
4080	90	39	4,8	cyclictest	31763	-21	perl	08:45:37	0
4080	90	39	4,26	cyclictest	32610	-21	/usr/sbin/munin	07:55:43	0
4080	90	37	13,18	cyclictest	23004	-21	ld	08:30:56	0
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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