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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 highest latencies:

System rackfslot4s.osadl.org (updated Wed Apr 15, 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
18462	2	186	0,2	chrt	18463	-21	sh	19:09:35	0
6015	2	122	0,3	chrt	6010	-21	memory	22:11:10	0
2399	2	120	0,2	chrt	2400	-21	runrttasks	22:55:13	0
15911	2	119	0,2	sleep0	15910	-21	seq	21:38:19	0
24002	2	118	0,2	chrt	24003	-21	sh	19:17:39	0
22367	2	118	0,2	chrt	22359	-21	ps	22:36:03	0
20394	2	118	0,3	chrt	20393	-21	/usr/sbin/munin	20:55:40	0
7074	2	116	0,3	chrt	7073	-21	/usr/sbin/munin	21:25:36	0
6416	2	115	0,4	chrt	6417	-21	if_eth1	19:41:33	0
4657	2	115	0,2	chrt	4656	-21	seq	20:30:32	0
1290	2	115	0,2	chrt	1288	-21	ssh	22:52:52	0
17831	2	114	0,2	chrt	17833	-21	sed	21:41:07	0
1491	2	114	0,3	chrt	1492	-21	sleep	22:05:12	0
1706	2	112	0,3	chrt	1707	-21	mailstats	23:42:14	0
14449	2	112	0,1	sleep0	14450	-21	runrttasks	23:12:31	0
8244	2	111	0,2	sleep0	8245	-21	seq	23:03:33	0
12999	2	111	0,2	sleep0	13000	-21	chrt	19:51:20	0
30132	2	110	0,2	sleep0	30135	-21	kernelversion	23:36:17	0
28523	2	110	0,2	chrt	28524	-21	seq	20:15:59	0
2027	2	110	0,2	chrt	2028	-21	sleep	19:35:02	0
20219	2	110	0,2	sleep0	20221	-21	processes	19:11:22	0
24612	2	109	0,2	sleep0	24610	-21	vmstat	21:01:31	0
27716	2	108	0,2	sleep0	27715	-21	sshd	21:56:12	0
9766	2	106	0,1	sleep0	9767	-21	/usr/sbin/munin	23:06:00	0
32324	2	106	0,3	chrt	32325	-21	runrttasks	00:28:04	0
19368	2	106	0,2	chrt	19369	-21	aten2.4_rfpower	23:20:35	0
16890	2	106	0,2	chrt	16891	-21	ls	23:16:18	0
6466	2	105	0,2	sleep0	6467	-21	runrttasks	00:38:00	0
4115	2	105	0,2	chrt	4113	-21	sed	00:35:04	0
31535	2	105	0,2	chrt	31536	-21	runrttasks	21:13:11	0
12283	2	105	0,3	chrt	12284	-21	sh	20:41:49	0
26038	2	91	0,2	sleep0	26040	-21	cpu	23:30:37	0
19853	2	90	0,2	sleep0	19854	-21	cat	00:10:09	0
23814	2	86	0,2	sleep0	23816	-21	basename	21:50:35	0
13508	2	85	0,2	sleep0	13512	-21	rm	22:22:21	0
15464	2	81	0,1	sleep0	15465	-21	fschecks_time	22:25:51	0
9949	2	80	0,2	sleep0	9950	-21	seq	23:55:27	0
15136	2	80	0,2	chrt	15126	-21	python3	20:46:28	0
18217	2	77	0,2	sleep0	18218	-21	rm	00:07:13	0
18695	90	76	6,20	cyclictest	29279	-21	sshd	22:46:12	0
9645	2	75	0,2	sleep0	9646	-21	chrt	19:45:55	0
18695	90	75	6,11	cyclictest	10329	-21	awk	20:40:00	0
18695	90	74	5,58	cyclictest	22457	-21	sshd	20:06:09	0
18695	90	74	5,19	cyclictest	4626	-21	ssh	21:21:16	0
18695	90	74	5,11	cyclictest	13280	-21	ssh	21:35:02	0
18695	90	74	4,22	cyclictest	15368	-21	runrttasks	00:02:44	0
18695	90	74	4,19	cyclictest	29759	-21	ntpq	19:26:46	0
18695	90	74	4,11	cyclictest	412	-21	snmpd	22:02:02	0
18695	90	73	6,10	cyclictest	3679	-21	diskstats	23:45:47	0
18695	90	73	5,18	cyclictest	26333	-21	ntpq	22:41:42	0
18695	90	73	16,9	cyclictest	1524	-21	ssh	21:16:44	0
18695	90	73	15,9	cyclictest	21438	-21	ntpq	21:46:21	0
18695	90	73	15,10	cyclictest	32187	-21	users	20:21:30	0
18695	90	72	5,10	cyclictest	19174	-21	ntpq	20:00:55	0
18695	90	72	4,18	cyclictest	8194	-21	ntpq	23:52:10	0
18695	90	72	4,18	cyclictest	26830	-21	telnet	00:20:33	0
18695	90	72	4,12	cyclictest	9645	-21	ssh	22:16:45	0
18695	90	72	4,10	cyclictest	17201	-21	fschecks_time	20:50:37	0
18695	90	71	7,18	cyclictest	25939	-21	irqstats	19:20:44	0
18695	90	71	6,9	cyclictest	24543	-21	ntpq	00:16:21	0
18695	90	71	5,19	cyclictest	21359	-21	munin-run	22:35:01	0
18695	90	71	5,10	cyclictest	16439	-21	ntpq	19:56:54	0
18695	90	71	4,17	cyclictest	26395	-21	df_inode	21:05:31	0
18695	90	71	4,11	cyclictest	23389	-21	ssh	23:26:10	0
18695	90	71	16,9	cyclictest	2125	-21	/usr/sbin/munin	19:35:33	0
18695	90	70	5,9	cyclictest	2310	-21	ntpq	20:26:00	0
18695	90	70	4,19	cyclictest	25871	-21	seq	20:11:27	0
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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