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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
Special All - All RT - Optimization - Ethernet - Thumbnails - Next

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 Mar 18, 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
6032	2	129	0,3	chrt	6030	-21	/usr/sbin/munin	00:10:51	0
12816	2	127	0,4	chrt	12815	-21	ssh	21:55:10	0
20139	2	124	0,3	chrt	20136	-21	fw_packets	22:05:56	0
2514	2	120	0,4	chrt	2511	-21	sendmail-msp	21:40:01	0
23532	2	119	0,2	chrt	23533	-21	seq	23:47:58	0
8492	2	118	0,3	chrt	8493	-21	fschecks_count	23:25:49	0
4404	2	117	0,1	sleep0	4403	-21	seq	23:19:57	0
3353	2	117	0,2	chrt	3338	-21	ntpq	00:06:20	0
18364	2	117	0,2	chrt	18359	-21	ntpq	19:31:13	0
24489	2	116	0,3	chrt	24490	-21	sh	20:33:26	0
30531	2	115	0,2	chrt	30532	-21	runrttasks	21:32:34	0
14597	2	115	0,2	chrt	14592	-21	ssh	23:35:11	0
9811	2	114	0,3	chrt	9812	-21	runrttasks	22:38:54	0
8138	2	114	0,2	chrt	8139	-21	ssh	21:47:50	0
29554	2	114	0,3	chrt	29555	-21	ssh	23:57:06	0
5588	2	113	0,3	chrt	5587	-21	/usr/sbin/munin	19:10:46	0
26698	2	113	0,2	chrt	26699	-21	ssh	21:27:03	0
25321	2	113	0,2	chrt	25322	-21	sleep	23:01:50	0
21910	2	113	0,2	chrt	21908	-21	ntpq	22:56:43	0
19588	2	113	0,2	chrt	19589	-21	sleep	23:42:04	0
13335	2	113	0,2	sleep0	13336	-21	sh	20:15:39	0
22160	2	111	0,2	chrt	22155	-21	df	21:20:41	0
16576	2	111	0,4	chrt	16577	-21	sleep	21:11:57	0
25275	2	110	0,2	chrt	25276	-21	sleep	22:13:26	0
2974	2	109	0,3	chrt	2973	-21	ssh	22:28:49	0
29743	2	108	0,2	chrt	29744	-21	chrt	19:50:13	0
24933	2	108	0,3	chrt	24934	-21	sleep	00:39:20	0
32477	2	107	0,2	sleep0	32478	-21	runrttasks	22:24:41	0
20865	2	103	0,2	chrt	20866	-21	sleep	20:26:59	0
8004	2	102	0,2	chrt	8005	-21	sleep	20:58:26	0
1213	2	101	0,2	chrt	1214	-21	date	23:15:05	0
15954	2	99	0,2	chrt	15955	-21	sh	19:27:22	0
16612	2	87	0,1	sleep0	16610	-21	nfs4_client	00:26:14	0
7123	2	86	0,1	sleep0	7125	-21	chrt	20:05:37	0
20173	2	85	0,1	sleep0	20174	-21	runrttasks	00:31:39	0
13673	2	81	0,1	sleep0	13674	-21	sh	00:21:55	0
1193	2	80	0,1	sleep0	1194	-21	seq	00:03:16	0
1805	2	79	10,53	sleep0	1817	-21	df	19:05:23	0
7856	2	78	0,2	sleep0	7858	-21	grep	23:25:04	0
3724	2	78	0,2	sleep0	3725	-21	basename	20:00:25	0
8991	2	73	0,1	sleep0	8995	-21	aten2.4_rfpower	00:15:33	0
4516	90	73	8,55	cyclictest	16188	-21	apt-get	22:00:22	0
4516	90	72	6,54	cyclictest	10503	-21	apt-get	22:40:20	0
4516	90	72	4,57	cyclictest	18511	-21	ssh	22:51:34	0
4516	90	72	16,47	cyclictest	7315	-21	runrttasks	20:11:25	0
4516	90	71	6,54	cyclictest	13812	-21	apt-get	22:45:14	0
4516	90	71	3,58	cyclictest	28180	-21	apt-get	20:41:05	0
4516	90	71	15,49	cyclictest	14280	-21	sh	23:34:42	0
4516	90	70	5,54	cyclictest	1059	-21	ps	19:55:43	0
4516	90	70	5,45	cyclictest	21149	-21	memory	19:35:46	0
4516	90	70	4,57	cyclictest	9399	-21	/usr/sbin/munin	21:00:42	0
4516	90	70	4,46	cyclictest	2788	-21	ssh	21:40:30	0
4516	90	70	4,45	cyclictest	25928	-21	ntpq	23:51:31	0
4516	90	69	9,51	cyclictest	11880	-21	/usr/sbin/munin	21:05:41	0
4516	90	69	7,51	cyclictest	2329	-21	apt-get	20:50:18	0
4516	90	69	5,54	cyclictest	25891	-21	if_eth1	20:35:43	0
4516	90	69	5,54	cyclictest	18780	-21	df_inode	21:15:41	0
4516	90	69	4,56	cyclictest	26143	-21	seq	22:15:14	0
4516	90	69	4,54	cyclictest	16146	-21	telnet	20:20:24	0
4516	90	69	4,47	cyclictest	29274	-21	seq	19:49:16	0
31737	2	69	0,1	sleep0	31738	-21	chrt	20:45:20	0
4516	90	68	5,53	cyclictest	27562	-21	diskstats	23:05:45	0
4516	90	68	3,57	cyclictest	4104	-21	df_inode	22:30:42	0
4516	90	67	7,50	cyclictest	10887	-21	apt-get	19:20:22	0
4516	90	67	6,52	cyclictest	23121	-21	apt-get	19:40:54	0
4516	90	67	6,51	cyclictest	9507	-21	apt-get	21:50:20	0
4516	90	67	11,47	cyclictest	8446	-21	irqrtprio	19:15:43	0
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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