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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 100 highest latencies:

System rackfslot4s.osadl.org (updated Wed Sep 23, 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
10738	2	125	0,2	chrt	10741	-21	cpu	23:55:37	0
8094	2	124	0,1	sleep0	8092	-21	sendmail_mailtr	23:02:16	0
14051	2	123	0,2	sleep0	14052	-21	chrt	22:22:31	0
16568	2	118	0,2	chrt	16569	-21	sh	00:04:23	0
6588	2	115	0,2	chrt	6589	-21	runrttasks	00:37:19	0
30632	2	115	0,3	chrt	30633	-21	runrttasks	21:59:45	0
7712	2	114	0,2	chrt	7713	-21	seq	21:25:16	0
2858	2	114	0,2	chrt	2859	-21	sleep	22:06:06	0
1429	2	114	0,2	sleep0	1430	-21	mailstats	22:52:14	0
1349	2	114	0,2	chrt	1344	-21	ssh	21:15:51	0
835	2	113	0,2	sleep0	836	-21	seq	22:03:07	0
561	2	113	0,3	chrt	559	-21	aten2.4_rfpower	23:40:30	0
25186	2	113	0,2	chrt	25188	-21	apt-config	22:40:08	0
29945	2	112	0,3	chrt	29944	-21	sshd	23:35:38	0
18672	2	112	0,2	sleep0	18673	-21	irqrtprio	21:41:04	0
27099	2	111	0,2	chrt	27100	-21	chrt	21:54:15	0
19846	2	111	0,2	chrt	19847	-21	sh	20:01:03	0
18944	2	110	0,4	chrt	18945	-21	runrttasks	23:19:02	0
5676	2	108	0,2	chrt	5677	-21	seq	22:59:08	0
16825	2	107	0,3	chrt	16826	-21	sh	22:26:52	0
6940	2	106	0,2	chrt	6941	-21	rm	21:23:41	0
31643	2	106	0,2	chrt	31644	-21	sleep	19:28:48	0
24255	2	96	0,2	sleep0	24256	-21	ld	23:26:33	0
12940	2	94	0,2	sleep0	12941	-21	seq	23:10:17	0
5510	2	91	0,2	sleep0	5512	-21	uname	23:47:15	0
4514	2	89	0,1	sleep0	4517	-21	sh	00:35:01	0
5986	2	86	0,2	sleep0	5988	-21	grep	22:11:26	0
16950	2	84	0,2	sleep0	16951	-21	seq	21:38:51	0
12755	2	83	0,2	sleep0	12756	-21	seq	23:10:03	0
16388	2	81	0,2	sleep0	16390	-21	cut	19:55:44	0
28978	2	80	0,2	sleep0	28979	-21	seq	23:34:07	0
17770	2	80	10,55	sleep0	17827	-21	python3	19:06:00	0
30771	2	77	0,2	sleep0	30772	-21	chrt	00:25:35	0
19477	90	77	14,11	cyclictest	27457	-21	ssh	00:20:50	0
13448	2	77	0,2	sleep0	13449	-21	chrt	21:33:24	0
22900	2	75	0,1	sleep0	22901	-21	chrt	20:06:00	0
19477	90	75	5,12	cyclictest	26823	-21	munin-run	00:20:02	0
19477	90	75	4,17	cyclictest	439	-21	sh	00:07:25	0
19477	90	75	11,18	cyclictest	30031	-21	ssh	22:46:28	0
19477	90	74	6,10	cyclictest	31465	-21	ssh	21:11:55	0
19477	90	74	5,20	cyclictest	8369	-21	ntpq	23:51:29	0
19477	90	74	5,18	cyclictest	9266	-21	chrt	22:15:55	0
19477	90	73	6,19	cyclictest	22365	-21	users	00:12:24	0
19477	90	73	5,10	cyclictest	27070	-21	ntpq	22:42:15	0
21844	2	72	0,3	sleep0	21847	-21	cut	21:46:05	0
19477	90	72	6,9	cyclictest	27866	-21	ntpq	21:05:53	0
19477	90	72	5,20	cyclictest	21685	-21	ntpq	20:55:57	0
19477	90	72	4,19	cyclictest	21185	-21	ntp_states	23:22:05	0
19477	90	72	16,11	cyclictest	20533	-21	irqstats	19:10:52	0
19477	90	72	15,9	cyclictest	8804	-21	if_eth0	20:35:41	0
19477	90	72	14,9	cyclictest	12454	-21	/usr/sbin/munin	19:50:45	0
19477	90	71	6,20	cyclictest	2736	-21	apt-get	19:35:51	0
19477	90	71	5,10	cyclictest	32561	-21	ntpq	20:21:10	0
19477	90	71	4,19	cyclictest	2498	-21	hddtemp_smartct	20:25:38	0
19477	90	71	4,18	cyclictest	27335	-21	memory	19:21:39	0
19477	90	71	16,9	cyclictest	21264	-21	ssh	22:33:53	0
19477	90	70	4,20	cyclictest	11667	-21	diskstats	20:40:33	0
19477	90	70	4,18	cyclictest	6306	-21	runrttasks	19:40:22	0
19477	90	70	4,10	cyclictest	412	-21	snmpd	19:45:25	0
19477	90	70	14,11	cyclictest	24616	-21	/usr/sbin/munin	21:00:45	0
19477	90	70	14,10	cyclictest	25495	-21	seq	20:11:14	0
19477	90	69	6,20	cyclictest	29078	-21	irqstats	20:15:45	0
19477	90	69	5,19	cyclictest	25730	-21	ls	19:20:06	0
19477	90	69	14,10	cyclictest	1173	-21	proc_pri	19:31:21	0
19477	90	69	12,12	cyclictest	14620	-21	aten2.4_rfpower	20:45:28	0
19477	90	68	4,11	cyclictest	17824	-21	df	20:50:28	0
19477	90	67	6,11	cyclictest	6304	-21	ntpq	20:31:09	0
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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