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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 Wed Jun 17, 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
15283	2	131	0,2	chrt	15286	-21	sleep	22:35:00	0
31491	2	126	0,3	chrt	31485	-21	ntpq	21:21:35	0
25648	2	125	0,2	chrt	25647	-21	sed	22:01:19	0
5472	2	122	0,3	chrt	5469	-21	ntp_states	23:57:00	0
21231	2	122	0,2	chrt	21230	-21	/usr/sbin/munin	00:20:55	0
6050	2	121	0,2	sleep0	6049	-21	seq	23:09:58	0
1180	2	121	0,2	chrt	1181	-21	runrttasks	00:39:24	0
19967	2	118	0,4	chrt	19968	-21	chrt	20:11:31	0
25431	2	117	0,3	chrt	25433	-21	rm	22:50:10	0
30530	2	116	0,3	chrt	30532	-21	grep	23:46:26	0
28828	2	116	0,2	chrt	28829	-21	sshd	21:17:33	0
9813	2	114	0,2	chrt	9812	-21	seq	23:15:33	0
17789	2	114	0,3	chrt	17790	-21	ssh	23:26:53	0
7941	2	112	0,2	chrt	7942	-21	chrt	23:12:09	0
24181	2	112	0,3	chrt	24180	-21	apt-config	00:25:17	0
16323	2	112	0,2	chrt	16324	-21	ntpq	20:05:59	0
1344	2	112	0,2	chrt	1343	-21	grep	21:25:39	0
27908	2	111	0,3	chrt	27910	-21	runrttasks	22:05:32	0
19533	2	111	0,2	chrt	19534	-21	sleep	19:20:16	0
24995	2	110	0,2	sleep0	24996	-21	chrt	21:12:02	0
22247	2	109	0,2	chrt	22248	-21	seq	23:33:58	0
17434	2	108	0,2	chrt	17435	-21	chrt	21:49:48	0
11087	2	107	0,2	chrt	11089	-21	grep	00:05:56	0
19498	2	106	0,3	chrt	19499	-21	runrttasks	00:17:47	0
26877	2	104	0,2	chrt	26878	-21	sleep	20:22:47	0
431	2	103	0,2	chrt	430	-21	/usr/sbin/munin	23:01:03	0
3581	2	102	0,2	chrt	3582	-21	sh	20:37:25	0
32507	2	97	0,2	sleep0	32510	-21	ntp_kernel_pll_	22:11:37	0
6610	2	91	0,2	sleep0	6611	-21	cat	22:21:47	0
5333	2	89	0,2	sleep0	5331	-21	if_err_eth0	20:40:43	0
6428	2	88	0,2	sleep0	6429	-21	basename	19:50:39	0
27954	2	84	0,2	sleep0	27955	-21	aten2.4_rfpower	20:25:23	0
648	2	80	0,2	sleep0	649	-21	seq	23:50:27	0
27488	2	78	0,1	sleep0	27489	-21	seq	00:30:14	0
21527	2	78	0,2	sleep0	21528	-21	seq	21:55:46	0
11258	2	77	0,1	sleep0	11259	-21	chrt	20:50:27	0
8449	2	74	0,2	sleep0	8446	-21	if_err_eth2	20:45:41	0
25115	2	73	0,2	sleep0	25116	-21	seq	23:37:55	0
29225	2	72	0,2	sleep0	29226	-21	seq	19:35:25	0
29115	2	72	0,2	sleep0	29118	-21	grep	22:55:37	0
18010	2	72	0,2	sleep0	18013	-21	cut	21:00:43	0
17813	2	70	0,2	sleep0	17814	-21	seq	22:38:08	0
9787	2	64	0,2	sleep0	9788	-21	rm	21:37:36	0
11317	2	62	0,1	sleep0	11318	-21	seq	22:28:29	0
21883	2	59	3,9	sleep0	21237	-21	apt-get	20:15:55	0
11766	2	59	7,8	sleep0	11795	-21	if_err_eth1	21:41:02	0
7271	2	58	5,6	sleep0	7201	-21	apt-get	00:00:22	0
15657	2	57	5,8	sleep0	15645	-21	ntpq	00:12:20	0
2043	2	54	5,8	sleep0	2019	-21	apt-get	22:15:18	0
27737	2	50	0,3	chrt	27735	-21	/usr/sbin/munin	19:32:18	0
5593	2	49	3,6	sleep0	5595	-21	ssh	21:31:23	0
24453	2	49	2,40	sleep0	24456	-21	ssh	22:48:08	0
12916	90	49	20,22	cyclictest	0	-21	swapper	23:42:46	0
10979	2	48	9,26	sleep0	10982	-21	ntpq	19:05:47	0
15098	2	46	0,3	chrt	15099	-21	runrttasks	20:55:54	0
12916	90	46	15,24	cyclictest	0	-21	swapper	21:54:45	0
19475	2	45	2,36	sleep0	19473	-21	ssh	22:40:57	0
12916	90	45	7,20	cyclictest	21348	-21	ntpq	21:05:58	0
12916	90	44	5,12	cyclictest	13321	-21	ntpq	20:01:08	0
15263	2	42	0,2	sleep0	15266	-21	chrt	23:23:08	0
12916	90	42	4,11	cyclictest	32161	-21	ntpq	20:31:06	0
12916	90	41	4,19	cyclictest	1784	2	sleep0	19:42:45	0
12916	90	40	4,20	cyclictest	22953	-21	df_inode	19:25:33	0
12916	90	40	4,10	cyclictest	4098	-21	ntpq	19:46:21	0
11616	2	40	1,4	sleep0	0	-21	swapper	19:59:15	0
12916	90	39	12,18	cyclictest	13056	-21	apt-get	19:10:21	0
12916	90	38	14,19	cyclictest	17308	-21	ntpq	19:16:05	0
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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