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2026-04-27 - 04:35
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Data to construct the above plot have been generated using the RT test utility cyclictest.
Unexpectedly long latencies may be caused by SMIs
Total number of samples: 100 million
Resolution of latency scale: normal
Duration: 5 hours, 33 minutes, lowest P state: performance
Compare latency of primary with shadow system
Characteristics of the 100 highest latencies:
System rackaslot8.osadl.org (updated Mon Apr 27, 2026 00:44:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
309272318261,47sleep20-21swapper/219:09:482
306162280248,21sleep10-21swapper/119:06:051
307962269238,20sleep30-21swapper/319:08:083
307152265234,20sleep00-21swapper/019:07:050
285742620,0sleep00-21swapper/022:51:120
191882620,0sleep20-21swapper/222:25:482
323742600,0sleep30-21swapper/323:51:583
119642580,0sleep30-21swapper/322:21:363
127582570,0sleep00-21swapper/000:39:310
210662540,0sleep00-21swapper/021:48:460
206652540,0sleep10-21swapper/121:48:271
46052190,0sleep10-21swapper/121:19:391
299902150,0sleep10-21swapper/122:52:171
162322150,0sleep30-21swapper/321:25:463
162312150,0sleep00-21swapper/022:44:240
162312150,0sleep00-21swapper/022:44:240
103672130,0sleep10-21swapper/121:22:391
226162120,0sleep20-21swapper/223:07:162
5509290,1sleep10-21swapper/121:58:401
310659997,2cyclictest34-21ksoftirqd/320:25:013
310609996,2cyclictest28-21ksoftirqd/220:30:012
310529993,4cyclictest275-21systemd-journal19:36:320
310659985,2cyclictest34-21ksoftirqd/319:20:013
310609984,3cyclictest275-21systemd-journal21:46:542
310609984,3cyclictest275-21systemd-journal21:17:012
310579983,3cyclictest275-21systemd-journal00:07:221
310529983,4cyclictest2648-1kworker/u9:221:40:000
310659973,3cyclictest8869-21ntp_states22:00:183
310659973,3cyclictest658-21snmpd23:11:043
310659973,3cyclictest6290-21ssh22:38:063
310659973,3cyclictest5072-21sh21:20:003
310659973,3cyclictest275-21systemd-journal21:15:003
310659973,3cyclictest275-21systemd-journal20:30:463
310659973,3cyclictest1-21systemd23:45:003
310659972,3cyclictest275-21systemd-journal00:00:003
310609973,3cyclictest275-21systemd-journal22:17:462
310609973,3cyclictest275-21systemd-journal21:21:362
310609970,6cyclictest17638-21apt23:05:012
310579975,2cyclictest5534-21ssh22:37:311
310579974,2cyclictest504-21dbus-daemon20:36:341
310579973,3cyclictest658-21snmpd21:44:021
310579972,4cyclictest7355-21cron20:44:561
310579972,4cyclictest7355-21cron20:44:561
310579972,3cyclictest30099-21munin-run21:35:001
310579971,3cyclictest12637-21munin-run19:40:011
310579970,4cyclictest17651-21basename23:05:011
310529973,3cyclictest658-21snmpd22:56:370
310529973,3cyclictest658-21snmpd19:15:210
310529973,3cyclictest275-21systemd-journal00:31:580
310529973,3cyclictest22640-21memory20:00:150
310529973,3cyclictest17632-21cat22:25:160
310529973,2cyclictest275-21systemd-journal20:55:010
26551270,0sleep10-21swapper/122:30:191
24829270,0sleep30-21swapper/322:30:013
20708270,0sleep10-21swapper/121:29:121
15318270,0sleep00-21swapper/023:03:140
13444270,1sleep00-21swapper/023:21:030
310659966,0cyclictest0-21swapper/323:21:483
310659966,0cyclictest0-21swapper/321:47:593
310659966,0cyclictest0-21swapper/320:05:223
310659964,1cyclictest31450-21grep00:30:213
310659963,2cyclictest658-21snmpd19:12:033
310659963,2cyclictest22991-21ssh22:09:173
310659963,2cyclictest16066-21ssh22:44:163
310659963,2cyclictest16066-21ssh22:44:163
310659963,2cyclictest11746-21ssh23:00:283
310659962,3cyclictest658-21snmpd23:35:563
310659962,3cyclictest658-21snmpd23:31:233
310659962,3cyclictest658-21snmpd23:05:103
310659962,3cyclictest658-21snmpd22:58:133
310659962,3cyclictest658-21snmpd21:30:073
310659962,3cyclictest658-21snmpd21:05:393
310659962,3cyclictest658-21snmpd20:47:353
310659962,3cyclictest658-21snmpd20:00:043
310659962,3cyclictest658-21snmpd19:59:553
310659962,3cyclictest658-21snmpd19:30:303
310659962,3cyclictest658-21snmpd00:11:483
310659962,3cyclictest6350-21cat21:20:163
310659962,3cyclictest5758-21cat23:55:193
310659962,3cyclictest504-21dbus-daemon21:35:223
310659962,3cyclictest29537-21ls20:15:183
310659962,3cyclictest275-21systemd-journal20:58:453
310659962,3cyclictest275-21systemd-journal20:26:093
310659962,3cyclictest275-21systemd-journal19:40:013
310659962,3cyclictest26889-21smartctl20:10:153
310659962,3cyclictest19633-21expr23:25:143
310659962,3cyclictest17280-21cat21:00:163
310659962,1cyclictest0-21swapper/323:17:053
310659962,1cyclictest0-21swapper/322:30:193
310659961,4cyclictest32758-21cat21:55:173
310659961,4cyclictest0-21swapper/321:50:143
310659961,4cyclictest0-21swapper/300:38:083
310659961,3cyclictest275-21systemd-journal22:15:033
310659961,3cyclictest275-21systemd-journal19:20:013
310659961,1cyclictest79252cat21:40:183
310659960,6cyclictest0-21swapper/300:16:253
310659960,5cyclictest8602-21ntp_states20:40:173
310659960,5cyclictest8602-21ntp_states20:40:173
310659960,5cyclictest30789-21ssh22:52:553
310659960,5cyclictest25866-21cat22:10:203
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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