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2026-06-09 - 07:00
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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
Characteristics of the 100 highest latencies:
System rackdslot0.osadl.org (updated Tue Jun 09, 2026 00:46:03)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
30699993230,2cyclictest0-21swapper/021:10:160
30699993230,2cyclictest0-21swapper/021:10:150
30709992625,0cyclictest0-21swapper/222:42:082
30699992312,6cyclictest31856-21cut23:00:130
3070499223,13cyclictest0-21swapper/119:40:141
3069999220,4cyclictest0-21swapper/021:46:480
3069999220,18cyclictest0-21swapper/020:40:150
3070999212,18cyclictest0-21swapper/220:56:132
30709992112,7cyclictest28-21ksoftirqd/220:50:002
30699992113,4cyclictest0-21swapper/023:06:490
3070999201,18cyclictest0-21swapper/222:15:262
3069999204,1cyclictest0-21swapper/021:30:150
30699992016,3cyclictest0-21swapper/020:15:020
3069999200,19cyclictest843-21systemd-network23:41:290
3070999193,15cyclictest28-21ksoftirqd/200:07:222
3070999192,2cyclictest2528-21chrt20:14:432
3070999192,16cyclictest28996-21smtpd20:02:022
30704991917,1cyclictest0-21swapper/121:20:011
3070499190,17cyclictest0-21swapper/121:40:251
3069999194,1cyclictest0-21swapper/019:25:140
3069999193,15cyclictest13850-21cut20:35:010
3069999192,16cyclictest10387-21grep22:20:180
30699991916,2cyclictest3992-21H222:10:210
30699991914,3cyclictest0-21swapper/020:12:540
30699991913,3cyclictest0-21swapper/000:34:590
3069999190,1cyclictest0-21swapper/019:40:580
3069999190,18cyclictest25530-21ntpq21:50:200
3070999183,14cyclictest0-21swapper/222:29:262
3070999182,15cyclictest19686-21nfsd423:35:172
3070999182,15cyclictest0-21swapper/220:24:012
30709991818,0cyclictest0-21swapper/223:58:592
30709991815,2cyclictest3581-21timerandwakeup23:05:222
30709991815,2cyclictest27206-21ls23:50:132
3070999181,16cyclictest3976-21H222:10:212
3070999181,16cyclictest3976-21H222:10:212
3070999180,17cyclictest870-21systemd-logind00:36:512
3070999180,17cyclictest843-21systemd-network22:04:432
3070999180,0cyclictest0-21swapper/220:09:032
30704991815,2cyclictest3983-21H222:10:211
30704991814,2cyclictest28064-21perf21:00:011
3070499180,15cyclictest3976-21H222:10:211
30699991818,0cyclictest0-21swapper/021:15:150
30699991816,1cyclictest28222-21cut21:55:170
30699991816,1cyclictest1073-21cat19:15:020
30699991816,1cyclictest0-21swapper/022:39:010
30699991816,1cyclictest0-21swapper/021:25:160
30699991816,1cyclictest0-21swapper/020:03:000
30699991815,2cyclictest5735-21awk19:20:160
30699991815,2cyclictest29056-21chrt23:54:020
30699991815,2cyclictest24364-21ntp_kernel_err20:50:180
30699991815,2cyclictest17342-21cat23:30:190
30699991814,2cyclictest29610-21apache_volume22:00:110
30699991813,2cyclictest10860-21awk00:15:220
3069999181,2cyclictest14464-21cat19:35:210
3069999181,2cyclictest0-21swapper/020:20:190
3069999181,16cyclictest19599-21nfsd419:45:190
3069999180,3cyclictest4405-21grep22:10:170
3069999180,3cyclictest30811-21perf21:05:000
3069999180,2cyclictest4036-21H222:10:210
30709991714,3cyclictest0-21swapper/221:40:012
30709991714,2cyclictest6312-21processes21:15:182
30709991714,2cyclictest4056-21if_enp1s022:10:152
30709991714,2cyclictest24601-21expr21:50:142
30709991714,2cyclictest17332-21chrt00:27:452
30709991714,2cyclictest16151-21sendmail_mailst22:30:202
30709991714,2cyclictest13263-21netstat00:20:172
30709991714,1cyclictest0-21swapper/221:25:162
3070999171,16cyclictest0-21swapper/221:34:082
3070999171,15cyclictest8032-21expr21:20:132
3070999171,15cyclictest3799-21expr20:15:142
3070999171,15cyclictest28-21ksoftirqd/220:25:132
3070999170,2cyclictest9301-21timerandwakeup23:15:182
3070999170,2cyclictest6084-21/usr/sbin/munin00:10:112
3070999170,2cyclictest29177-21ls22:55:152
3070999170,2cyclictest29177-21ls22:55:152
3070999170,2cyclictest25615-21pzem_current23:45:202
3070999170,2cyclictest24208-21nfsd420:50:182
3070999170,2cyclictest20865-21date19:50:012
3070999170,2cyclictest14219-21pzem_voltage19:35:212
3070999170,2cyclictest11542-21sendmail_mailtr19:30:212
3070999170,16cyclictest9767-21fschecks_count22:20:162
3070999170,16cyclictest7772-21ls19:25:142
3070999170,16cyclictest5699-21netstat19:20:172
3070999170,16cyclictest32243-21nfsd419:10:182
3070999170,16cyclictest24833-21fschecks_time19:55:162
3070999170,16cyclictest18730-21ntp_states22:35:182
3070999170,16cyclictest16965-21ntpq19:40:182
3070999170,16cyclictest13814-21if_enp1s023:25:152
3070999170,16cyclictest1348-21lxd21:12:502
3070999170,16cyclictest1348-21lxd21:12:492
3070999170,16cyclictest0-21swapper/223:30:142
3070499172,1cyclictest203432chrt19:46:231
30704991715,1cyclictest172332chrt00:26:231
30704991714,2cyclictest9483-21cupsd21:47:161
30704991714,2cyclictest7210-21/usr/sbin/munin19:25:171
30704991714,2cyclictest3903-21http_loadtime22:10:141
30704991714,2cyclictest3351-21lxd20:22:501
30704991714,2cyclictest29164-21idleruntime22:55:151
30704991714,2cyclictest29164-21idleruntime22:55:151
30704991714,2cyclictest22336-21grep19:50:181
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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