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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 Mon Jun 22, 2026 00:44:33)
Delayed (victim)					Switcher (culprit)			Timestamp	CPU
PID	Prio	Total latency (µs)	T^(,W^*) latency (µs)	Cmd	PID	Prio	Cmd	Timestamp	CPU
22284	2	124	0,2	chrt	22285	-21	sleep	22:59:28	0
32571	2	121	0,3	chrt	32572	-21	chrt	23:15:04	0
30256	2	121	0,3	chrt	30257	-21	sleep	21:34:28	0
4030	2	118	0,3	chrt	4031	-21	runrttasks	21:43:21	0
28288	2	118	0,3	chrt	28289	-21	chrt	19:50:18	0
19440	2	118	0,2	chrt	19441	-21	ldconfig	00:31:28	0
8765	2	117	0,2	chrt	8763	-21	df	20:10:28	0
27605	2	116	0,2	chrt	27603	-21	apt-config	20:40:08	0
17291	2	116	0,3	chrt	17289	-21	ssh	22:03:02	0
25625	2	115	0,1	sleep0	25626	-21	gcc	23:52:32	0
4481	2	113	0,2	chrt	4482	-21	apt	00:09:59	0
31460	2	113	0,2	sleep0	31462	-21	cut	19:55:24	0
9740	2	112	0,2	chrt	9741	-21	gcc	21:51:45	0
22538	2	112	0,3	chrt	22531	-21	ps	22:11:07	0
2585	2	111	0,2	sleep0	2586	-21	ld	20:50:57	0
3433	2	110	0,3	chrt	3434	-21	sendmail-msp	23:20:02	0
22957	2	109	0,2	sleep0	22959	-21	ntp_kernel_pll_	19:41:00	0
7411	2	108	0,2	sleep0	7412	-21	sh	22:36:28	0
2136	2	108	0,2	sleep0	2137	-21	chrt	20:00:23	0
31692	2	107	0,3	chrt	31694	-21	modprobe	22:25:06	0
23352	2	107	0,3	chrt	23353	-21	seq	23:49:42	0
28525	2	106	0,4	chrt	28526	-21	chrt	23:08:27	0
12020	2	106	0,2	chrt	12019	-21	seq	22:43:42	0
3443	2	104	0,2	chrt	3445	-21	cut	19:10:41	0
12267	2	104	0,2	chrt	12268	-21	sleep	19:25:11	0
13279	2	96	0,2	sleep0	13280	-21	seq	21:57:08	0
19975	2	95	0,2	sleep0	19976	-21	chrt	21:18:55	0
32340	2	94	0,1	sleep0	32341	-21	seq	21:37:08	0
32330	2	89	0,2	sleep0	32331	-21	cat	00:02:16	0
10115	2	89	0,2	sleep0	10116	-21	chrt	23:29:51	0
21452	2	88	0,2	sleep0	21453	-21	chrt	22:09:58	0
17994	2	84	0,2	sleep0	17995	-21	chrt	22:52:26	0
22695	2	82	0,2	chrt	22668	-21	ntpq	00:36:21	0
19666	2	82	0,2	sleep0	19667	-21	chrt	23:43:49	0
18148	2	82	0,2	sleep0	18145	-21	aten2.4_rfpower	20:25:26	0
14432	2	80	0,2	sleep0	14433	-21	chrt	22:47:09	0
12578	2	80	0,1	sleep0	12579	-21	latency	00:21:10	0
3787	2	78	0,2	sleep0	3784	-21	aten2.4_rfpower	23:20:34	0
6393	2	75	0,2	sleep0	6394	-21	rm	00:12:14	0
15035	2	74	0,2	sleep0	15036	-21	seq	23:36:31	0
10713	2	74	0,2	sleep0	10715	-21	chrt	21:05:02	0
8199	2	68	0,1	sleep0	8201	-21	sort	21:50:06	0
20933	2	68	0,2	sleep0	20935	-21	awk	21:20:38	0
7171	2	67	0,2	sleep0	7174	-21	wc	20:07:18	0
11245	2	64	0,2	sleep0	11280	-21	latency_hist	00:20:00	0
19051	2	63	0,2	sleep0	19052	-21	seq	19:35:32	0
24964	2	60	0,1	sleep0	24965	-21	seq	19:45:19	0
12338	2	60	0,1	sleep0	12337	-21	sed	20:15:43	0
22915	2	58	3,7	sleep0	22913	-21	ntp_states	20:32:10	0
22708	2	57	0,1	sleep0	22709	-21	chrt	23:00:07	0
7283	2	54	3,32	sleep0	7288	-21	sshd	20:59:24	0
4809	2	53	2,6	sleep0	4799	-21	ssh	22:33:00	0
16852	2	53	0,2	sleep0	16851	-21	collect2	19:31:29	0
25576	2	51	4,40	sleep0	25563	-21	ntp_states	21:26:58	0
16436	2	50	1,40	sleep0	16431	-21	ntp_states	20:22:02	0
15357	2	50	3,7	sleep0	15340	-21	ntpq	21:11:43	0
2810	90	49	19,23	cyclictest	0	-21	swapper	23:59:19	0
2810	90	49	19,22	cyclictest	0	-21	swapper	22:17:53	0
1135	2	49	14,19	sleep0	1163	-21	python3	19:06:00	0
2810	90	48	16,23	cyclictest	0	-21	swapper	22:20:08	0
31119	2	45	0,3	chrt	31121	-21	cpu	20:45:23	0
2810	90	44	6,20	cyclictest	11862	-21	ntpq	21:05:53	0
2810	90	44	5,19	cyclictest	11667	-21	ssh	23:31:29	0
9006	2	43	0,3	sleep0	8999	-21	awk	19:20:02	0
2810	90	43	5,19	cyclictest	12104	-21	latency_hist	19:25:04	0
2810	90	43	15,21	cyclictest	0	-21	swapper	00:27:52	0
2810	90	39	16,17	cyclictest	26627	-21	runrttasks	20:38:06	0
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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