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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 Sun Jul 26, 2026 00:44:35)
Delayed (victim)					Switcher (culprit)			Timestamp	CPU
PID	Prio	Total latency (µs)	T^(,W^*) latency (µs)	Cmd	PID	Prio	Cmd	Timestamp	CPU
11722	2	125	0,2	chrt	11713	-21	ntp_states	23:27:01	0
2040	2	123	0,2	chrt	2039	-21	seq	22:25:03	0
25684	2	120	0,2	chrt	25686	-21	grep	23:00:06	0
28137	2	119	0,3	chrt	28138	-21	/usr/sbin/munin	22:15:35	0
22825	2	118	0,3	chrt	22824	-21	/usr/sbin/munin	22:07:03	0
18132	2	118	0,3	chrt	18133	-21	sleep	23:36:36	0
3730	2	116	0,2	chrt	3732	-21	runrttasks	21:38:30	0
11171	2	116	0,2	chrt	11051	-21	apt-get	00:15:31	0
6188	2	115	0,2	chrt	6187	-21	/usr/sbin/munin	00:07:19	0
14288	2	113	0,3	chrt	14286	-21	ssh	21:54:53	0
5302	2	112	0,2	chrt	5303	-21	seq	20:00:04	0
14021	2	112	0,3	chrt	14023	-21	grep	21:05:27	0
24254	2	111	0,2	chrt	24255	-21	aten2.4_rfpower	21:20:57	0
10279	2	111	0,1	sleep0	10280	-21	seq	00:13:41	0
11110	2	110	0,2	chrt	11107	-21	ssh	22:37:37	0
31422	2	109	0,2	sleep0	31419	-21	sh	19:50:00	0
18740	2	109	0,3	chrt	18741	-21	sleep	19:29:20	0
10662	2	109	0,2	chrt	10663	-21	sleep	21:49:08	0
31567	2	107	0,2	chrt	31568	-21	sleep	19:50:05	0
27075	2	106	0,2	chrt	27074	-21	ssh	00:39:06	0
21058	2	106	0,1	sleep0	21059	-21	if_eth0	21:16:10	0
8573	2	104	0,2	sleep0	8574	-21	chrt	22:34:29	0
18577	2	101	0,2	sleep0	18578	-21	chrt	22:49:33	0
19417	2	98	0,2	sleep0	19418	-21	seq	22:01:52	0
1226	2	94	0,2	sleep0	1228	-21	rm	00:00:34	0
4032	2	85	12,56	sleep0	4039	-21	hddtemp_smartct	19:05:59	0
21918	2	82	0,1	sleep0	21921	-21	cut	00:31:07	0
20233	2	82	0,2	sleep0	20232	-21	awk	23:40:14	0
32248	2	81	0,1	sleep0	32249	-21	sh	23:57:28	0
4159	2	80	0,1	sleep0	4160	-21	cat	22:27:22	0
28424	2	80	0,1	sleep0	28425	-21	seq	23:03:52	0
29271	2	78	0,2	sleep0	29272	-21	chrt	21:27:49	0
12920	2	77	0,2	sleep0	12921	-21	basename	19:20:24	0
23567	2	76	0,2	sleep0	23568	-21	chrt	19:36:23	0
16203	2	76	0,1	sleep0	16204	-21	sh	21:57:08	0
19422	2	73	0,1	sleep0	19420	-21	ntp_kernel_pll_	20:21:49	0
11133	2	73	0,2	sleep0	11134	-21	chrt	19:16:26	0
26910	2	72	0,2	sleep0	26911	-21	ssh	23:50:16	0
19874	2	71	0,1	sleep0	19875	-21	seq	00:27:42	0
16586	2	70	0,2	sleep0	16587	-21	chrt	23:35:03	0
3987	2	67	0,1	sleep0	3988	-21	fschecks_count	23:15:53	0
8030	2	58	0,2	sleep0	8031	-21	sh	23:21:20	0
31188	2	57	0,2	sleep0	31189	-21	collect2	23:07:48	0
14825	2	54	0,2	sleep0	14886	-21	telnet	20:15:25	0
6395	90	51	17,23	cyclictest	0	-21	swapper	22:12:50	0
6395	90	50	19,22	cyclictest	0	-21	swapper	00:24:35	0
6395	90	49	17,23	cyclictest	0	-21	swapper	21:13:53	0
6395	90	49	17,22	cyclictest	0	-21	swapper	23:49:54	0
6395	90	48	17,21	cyclictest	20472	-21	runrttasks	22:51:49	0
5059	2	48	0,3	chrt	5057	-21	/usr/sbin/munin	21:40:48	0
11414	2	48	0,4	chrt	11418	-21	munin-plugin-st	20:10:01	0
6395	90	47	15,21	cyclictest	0	-21	swapper	21:32:39	0
27876	2	46	0,3	chrt	27863	-21	hddtemp_smartct	20:35:41	0
1227	2	46	0,1	sleep0	1281	-21	cut	20:45:25	0
6395	90	45	16,20	cyclictest	12336	-21	apt-get	22:40:18	0
6395	90	44	4,19	cyclictest	25434	-21	ntpq	20:31:16	0
6395	90	44	10,23	cyclictest	4432	-21	apt-get	20:50:15	0
6395	90	43	6,27	cyclictest	6508	-21	ntpq	20:01:01	0
6395	90	42	20,14	cyclictest	10672	-21	sleep	21:00:15	0
6395	90	42	18,15	cyclictest	22273	-21	sleep	20:26:11	0
6395	90	42	16,16	cyclictest	19180	-21	apt-get	19:30:15	0
6395	90	42	10,12	cyclictest	1385	-21	ntpq	23:11:25	0
6395	90	41	17,14	cyclictest	7871	-21	df_inode	20:55:31	0
6395	90	40	9,13	cyclictest	26370	-21	irqstats	19:41:00	0
6395	90	40	23,10	cyclictest	7315	-21	runrttasks	19:10:13	0
6395	90	40	12,11	cyclictest	793	-21	seq	20:44:42	0
6395	90	40	10,22	cyclictest	11577	-21	runrttasks	20:10:11	0
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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