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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 Sep 22, 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
1735	2	119	0,2	chrt	1733	-21	ssh	00:15:11	0
18488	2	118	0,2	chrt	18487	-21	seq	23:02:12	0
30942	2	117	0,2	chrt	30941	-21	wc	20:55:03	0
14313	2	117	0,2	chrt	14315	-21	cut	19:35:45	0
7891	2	116	0,4	chrt	7890	-21	/usr/sbin/munin	19:25:38	0
24169	2	116	0,3	chrt	24166	-21	ld	19:51:13	0
9744	2	115	0,2	chrt	9745	-21	/usr/sbin/munin	22:01:00	0
3902	2	115	0,3	chrt	3901	-21	/usr/sbin/munin	22:40:59	0
23747	2	114	0,3	chrt	23748	-21	runrttasks	23:59:21	0
2057	2	112	0,2	chrt	2054	-21	/usr/sbin/munin	21:00:28	0
16940	2	112	0,3	chrt	16941	-21	seq	00:37:18	0
5029	2	111	0,2	chrt	5028	-21	awk	21:05:24	0
384	2	111	0,3	chrt	386	-21	runrttasks	23:24:28	0
17830	2	111	0,2	chrt	17828	-21	ntpq	19:41:02	0
12960	2	110	0,2	chrt	12962	-21	seq	20:25:40	0
15748	2	109	0,2	chrt	15749	-21	sh	22:58:23	0
28066	2	108	0,3	chrt	28065	-21	seq	22:28:17	0
28671	2	107	0,3	chrt	28670	-21	/usr/sbin/munin	21:40:54	0
7434	2	106	0,2	chrt	7435	-21	chrt	23:35:08	0
21284	2	105	0,3	chrt	21285	-21	sleep	20:39:20	0
32338	2	102	0,2	sleep0	32339	-21	chrt	00:11:44	0
25919	2	101	0,1	sleep0	25920	-21	chrt	23:13:50	0
17673	2	101	0,2	sleep0	17674	-21	cat	23:50:18	0
14647	2	99	0,2	sleep0	14648	-21	seq	00:34:28	0
9220	2	98	0,2	sleep0	9221	-21	seq	22:49:00	0
25337	2	90	0,2	sleep0	25339	-21	grep	20:45:37	0
30416	2	85	0,2	sleep0	30417	-21	collect2	22:31:42	0
26131	2	83	0,2	sleep0	26132	-21	seq	00:02:20	0
27372	2	82	11,16	sleep0	27347	-21	apt-get	19:05:15	0
10164	2	81	0,2	sleep0	10166	-21	cut	20:20:44	0
864	2	78	0,2	sleep0	866	-21	awk	21:47:14	0
19799	2	77	0,2	sleep0	19800	-21	chrt	21:27:24	0
15124	2	76	0,1	sleep0	15125	-21	chrt	22:09:08	0
22068	2	75	0,2	sleep0	22069	-21	seq	20:40:27	0
24175	2	74	0,2	sleep0	24176	-21	seq	21:34:15	0
1609	2	74	0,1	sleep0	1610	-21	awk	22:37:19	0
32071	2	73	0,1	sleep0	32072	-21	seq	19:11:29	0
20432	2	73	0,2	sleep0	20433	-21	seq	23:05:45	0
17783	2	72	0,2	sleep0	17784	-21	seq	21:24:57	0
16813	2	72	0,2	sleep0	16815	-21	sed	22:11:11	0
5754	2	71	0,2	sleep0	5755	-21	seq	20:14:57	0
4024	2	70	0,2	sleep0	4025	-21	seq	21:52:04	0
26011	2	70	0,2	sleep0	26012	-21	chrt	19:55:15	0
13029	2	68	0,2	sleep0	13030	-21	sh	23:42:53	0
8958	2	67	0,1	sleep0	8960	-21	cut	00:25:51	0
10986	2	64	0,2	sleep0	10988	-21	chrt	19:30:37	0
8001	2	60	3,8	sleep0	7315	-21	runrttasks	21:58:03	0
1009	2	60	0,1	sleep0	1010	-21	basename	23:25:33	0
16028	2	59	0,2	sleep0	16029	-21	cat	23:47:19	0
25981	2	58	3,8	sleep0	25991	-21	ntpq	21:36:28	0
11212	2	58	0,1	sleep0	11213	-21	wc	21:15:05	0
2697	2	54	0,1	sleep0	2698	-21	run-parts	19:16:40	0
28222	2	51	4,9	sleep0	28217	-21	hddtemp_smartct	00:05:57	0
19848	2	51	0,1	sleep0	19849	-21	cat	22:16:07	0
32172	2	49	3,38	sleep0	32180	-21	runrttasks	20:56:00	0
30353	90	48	18,23	cyclictest	0	-21	swapper	00:23:01	0
6608	2	46	0,3	chrt	6607	-21	/usr/sbin/munin	20:16:15	0
6172	2	45	0,3	sleep0	6161	-21	ssh	23:32:25	0
30353	90	44	16,10	cyclictest	6777	-21	runrttasks	19:23:54	0
13561	2	44	0,2	sleep0	13556	-21	ssh	21:17:56	0
30353	90	43	17,10	cyclictest	31130	-21	sshd	20:02:30	0
15884	2	43	0,2	sleep0	15885	-21	seq	20:30:32	0
30353	90	42	15,14	cyclictest	0	-21	swapper	22:22:26	0
30353	90	41	14,10	cyclictest	12671	-21	ssh	22:54:20	0
30353	90	41	11,23	cyclictest	0	-21	swapper	23:19:40	0
30353	90	40	18,16	cyclictest	0	-21	swapper	19:45:32	0
30353	90	39	5,27	cyclictest	794	-21	ntpq	20:05:53	0
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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