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2025-12-24 - 10:21
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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 Wed Dec 24, 2025 00:45:55)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1448993231,0cyclictest0-21swapper/220:30:172
1442993129,1cyclictest0-21swapper/019:45:210
144899220,21cyclictest0-21swapper/223:10:222
144299220,18cyclictest0-21swapper/020:05:010
1448992116,4cyclictest24524-21grep20:45:152
1448992113,3cyclictest0-21swapper/222:25:142
144899210,3cyclictest0-21swapper/200:16:472
1448992018,1cyclictest0-21swapper/219:20:152
1448992016,1cyclictest0-21swapper/220:59:522
1443992017,2cyclictest3981-21H222:10:211
1443992017,2cyclictest18997-21sshd21:30:411
1443992016,3cyclictest0-21swapper/100:25:031
144299202,17cyclictest0-21swapper/021:24:420
144899192,16cyclictest11375-21smartctl22:15:202
1448991917,1cyclictest17364-21needreboot19:35:172
1448991917,1cyclictest0-21swapper/219:57:382
1448991916,2cyclictest6868-21awk23:05:182
1448991915,3cyclictest0-21swapper/221:56:152
144899190,2cyclictest3981-21H222:10:212
144899190,18cyclictest10151-21lxd20:08:502
144899190,16cyclictest4099-21H222:10:212
1443991917,1cyclictest11245-21latency19:25:191
1443991916,2cyclictest2872-21systemd-logind22:04:521
1443991916,2cyclictest2340-21ntp_kernel_pll_20:05:191
1443991914,3cyclictest0-21swapper/119:51:431
144299193,15cyclictest0-21swapper/020:51:090
1442991916,2cyclictest3985-21H222:10:210
144899182,1cyclictest0-21swapper/220:00:152
144899182,15cyclictest28-21ksoftirqd/221:21:102
1448991816,1cyclictest0-21swapper/223:59:082
1448991816,1cyclictest0-21swapper/200:25:212
1448991815,2cyclictest8351-21expr00:05:202
1448991815,2cyclictest3110-21expr23:00:172
1448991815,2cyclictest23503-21cat00:34:592
1448991815,2cyclictest21168-21cut21:35:192
1448991815,2cyclictest19387-21sed21:35:012
1448991815,2cyclictest18198-21/usr/sbin/munin20:35:152
1448991815,1cyclictest0-21swapper/223:25:162
1448991814,3cyclictest20079-21sort19:40:162
1448991814,3cyclictest15800-21latency_hist19:35:022
1448991814,3cyclictest1483-21snapd23:35:082
144899181,16cyclictest11444-21ntpq20:20:202
144899180,17cyclictest4035-21H222:10:212
144899180,17cyclictest4035-21H222:10:212
144899180,17cyclictest3987-21H222:10:212
144899180,17cyclictest3980-21H222:10:212
144899180,17cyclictest3979-21H222:10:212
144899180,17cyclictest3976-21H222:10:212
144899180,17cyclictest11407-21apt-config23:15:012
144899180,16cyclictest3987-21H222:10:212
144899180,16cyclictest0-21swapper/219:10:452
1443991816,1cyclictest302972chrt23:48:311
1443991816,1cyclictest21-21ksoftirqd/100:23:141
1443991816,1cyclictest0-21swapper/120:54:251
1443991815,2cyclictest30971-21cut21:55:141
1443991814,3cyclictest3987-21H222:10:211
1443991814,3cyclictest10151-21lxd22:42:331
144399181,3cyclictest0-21swapper/123:40:151
1443991813,2cyclictest3991-21H222:10:211
144399180,2cyclictest3981-21H222:10:211
144399180,2cyclictest3981-21H222:10:211
144399180,16cyclictest3979-21H222:10:211
144399180,15cyclictest4035-21H222:10:211
144299183,1cyclictest0-21swapper/000:32:520
144299182,1cyclictest4035-21H222:10:210
144299182,15cyclictest5162chrt21:57:370
144299182,15cyclictest0-21swapper/023:13:020
144299182,15cyclictest0-21swapper/020:49:020
144299182,13cyclictest3807-21gpgv20:10:010
1442991815,2cyclictest3989-21H222:10:210
1442991815,2cyclictest18507-21cat20:35:150
1442991814,3cyclictest3985-21H222:10:210
1442991814,3cyclictest3985-21H222:10:210
1442991814,2cyclictest3979-21H222:10:210
144299180,17cyclictest3981-21H222:10:210
144299180,17cyclictest14513-21tr23:20:130
144299180,17cyclictest14513-21tr23:20:130
144299180,15cyclictest3985-21H222:10:210
1448991714,2cyclictest8418-21cat20:15:202
1448991714,2cyclictest6159-21cstates21:10:152
1448991714,2cyclictest6047-21ps20:10:232
1448991714,2cyclictest5379-21cat22:05:192
1448991714,2cyclictest4099-21H222:10:212
1448991714,2cyclictest31276-21expr23:50:132
1448991714,2cyclictest2735-21expr22:00:192
1448991714,2cyclictest1484-21snapd23:20:092
1448991714,2cyclictest1484-21snapd23:20:082
1448991714,2cyclictest12586-21cat19:29:562
144899170,2cyclictest5253-21cstates19:15:162
144899170,2cyclictest32298-21/usr/sbin/munin21:00:182
144899170,2cyclictest21848-21http_loadtime20:40:172
144899170,2cyclictest18403-21tr22:30:132
144899170,1cyclictest4035-21H222:10:212
144899170,16cyclictest8993-21expr21:15:122
144899170,16cyclictest3991-21H222:10:212
144899170,16cyclictest332-21if_enp1s022:55:162
144899170,16cyclictest29786-21cstates22:50:122
144899170,16cyclictest28738-21fschecks_count21:50:152
144899170,16cyclictest28085-21sed20:50:212
144899170,16cyclictest24834-21cstates19:50:162
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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