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2025-12-19 - 06:14
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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 highest latencies:
System rackdslot0.osadl.org (updated Fri Dec 19, 2025 00:46:02)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
655799240,6cyclictest32644-21fschecks_time21:50:151
655899230,22cyclictest843-21systemd-network22:45:222
6556992320,2cyclictest15620-21fschecks_count22:15:150
655699230,5cyclictest0-21swapper/019:18:520
6557992214,7cyclictest843-21systemd-network22:24:461
655699220,4cyclictest0-21swapper/019:50:000
6558992111,6cyclictest22126-21nfsd419:35:192
655899210,3cyclictest0-21swapper/223:30:222
655799210,16cyclictest0-21swapper/123:50:141
655699211,19cyclictest0-21swapper/022:25:010
655799202,15cyclictest0-21swapper/120:47:361
655799202,15cyclictest0-21swapper/120:47:351
6556992017,2cyclictest8502-21cron00:00:010
655899192,3cyclictest0-21swapper/220:02:202
655899192,15cyclictest0-21swapper/223:44:272
655899190,16cyclictest3976-21H222:10:212
655799193,15cyclictest21-21ksoftirqd/121:19:271
655799192,16cyclictest0-21swapper/119:26:541
6557991915,3cyclictest0-21swapper/122:53:581
655799191,15cyclictest0-21swapper/122:57:021
655799191,15cyclictest0-21swapper/122:57:011
655799190,16cyclictest3983-21H222:10:211
655699193,15cyclictest810-21nfsd419:55:200
655699193,15cyclictest10148-21missed_timers22:05:180
6556991916,2cyclictest27453-21processes22:35:210
6556991915,3cyclictest0-21swapper/020:26:280
6556991914,2cyclictest3985-21H222:10:210
655699190,2cyclictest4099-21H222:10:210
655699190,16cyclictest3983-21H222:10:210
655899182,2cyclictest13895-21grep20:20:152
655899182,15cyclictest0-21swapper/223:39:592
655899182,0cyclictest0-21swapper/223:53:472
6558991816,1cyclictest0-21swapper/222:19:552
6558991816,1cyclictest0-21swapper/221:00:072
6558991815,2cyclictest0-21swapper/221:30:012
655899180,3cyclictest0-21swapper/220:35:192
655899180,17cyclictest863-21avahi-daemon00:00:252
655899180,17cyclictest3976-21H222:10:212
655899180,17cyclictest1085-21gdbus20:30:232
655899180,17cyclictest10800-21nfsd421:10:192
655899180,16cyclictest4035-21H222:10:212
655799182,1cyclictest27540-21latency19:45:171
6557991816,1cyclictest30042-21netstat22:40:181
6557991814,3cyclictest0-21swapper/123:39:311
6557991814,3cyclictest0-21swapper/121:22:431
6557991814,3cyclictest0-21swapper/120:03:381
655799181,2cyclictest1348-21lxd20:52:481
655799181,2cyclictest10985-21chrt00:01:281
655799181,16cyclictest20086-21basename20:30:171
655799180,3cyclictest0-21swapper/119:55:371
655799180,2cyclictest3985-21H222:10:211
655799180,17cyclictest4035-21H222:10:211
655799180,17cyclictest3987-21H222:10:211
655799180,15cyclictest0-21swapper/120:39:341
655699182,1cyclictest0-21swapper/021:20:150
6556991816,1cyclictest0-21swapper/000:05:240
6556991815,2cyclictest4035-21H222:10:210
6556991814,3cyclictest3989-21H222:10:210
6556991814,3cyclictest3987-21H222:10:210
6556991814,3cyclictest1829-21systemd-journal21:03:580
655699181,2cyclictest4099-21H222:10:210
655699181,16cyclictest1705-21nfsd423:45:170
655699180,17cyclictest0-21swapper/022:46:110
655699180,16cyclictest3985-21H222:10:210
6558991716,1cyclictest6868-21apache_processe19:10:132
6558991715,1cyclictest0-21swapper/223:06:492
6558991715,1cyclictest0-21swapper/221:39:002
6558991715,1cyclictest0-21swapper/219:50:242
6558991715,1cyclictest0-21swapper/219:50:232
6558991714,2cyclictest9435-21mailstats23:00:212
6558991714,2cyclictest4048-21kernelversion21:55:162
6558991714,2cyclictest4035-21H222:10:212
6558991714,2cyclictest3985-21H222:10:212
6558991714,2cyclictest3979-21H222:10:212
6558991714,2cyclictest30740-21pzem_energy21:45:212
6558991714,2cyclictest3030-21gmain20:52:252
6558991714,2cyclictest27961-21nvmesmart_nvme019:45:192
6558991714,2cyclictest24928-21chrt20:40:042
6558991714,2cyclictest21665-21sed00:20:182
6558991714,2cyclictest14381-21cat19:20:192
6558991714,2cyclictest10494-21expr19:15:142
655899171,15cyclictest7707-21missed_timers21:05:192
655899170,2cyclictest9773-21ntp_kernel_err20:10:192
655899170,2cyclictest3989-21H222:10:212
655899170,2cyclictest3985-21H222:10:212
655899170,2cyclictest3976-21H222:10:212
655899170,2cyclictest32652-21which21:50:162
655899170,2cyclictest29188-21cat22:40:132
655899170,2cyclictest16582-21expr23:15:132
655899170,1cyclictest0-21swapper/222:13:532
655899170,17cyclictest0-21swapper/219:42:012
655899170,16cyclictest3985-21H222:10:212
655899170,16cyclictest3985-21H222:10:212
655899170,16cyclictest29139-21cat00:35:142
655899170,16cyclictest27645-21sh20:45:002
655899170,16cyclictest27645-21sh20:45:002
655899170,16cyclictest24071-21which00:25:142
655899170,16cyclictest21697-21nfsd422:25:192
655899170,16cyclictest19540-21timerandwakeup22:20:222
655899170,16cyclictest1551-21snapd20:29:572
655899170,16cyclictest15075-21cat00:10:152
655899170,16cyclictest15075-21cat00:10:152
655899170,16cyclictest14811-21ntp_kernel_pll_23:10:202
655899170,16cyclictest1478-21snapd22:30:082
655899170,16cyclictest0-21swapper/221:31:582
6557991716,1cyclictest21-21ksoftirqd/119:51:331
6557991716,1cyclictest21-21ksoftirqd/119:51:321
6557991715,1cyclictest0-21swapper/123:45:171
6557991715,1cyclictest0-21swapper/120:17:161
6557991715,1cyclictest0-21swapper/100:15:181
6557991714,2cyclictest9036-21nfsd423:00:181
6557991714,2cyclictest8919-21chrt19:11:521
6557991714,2cyclictest27642-21cat22:35:221
6557991714,2cyclictest18572-21cat19:30:121
6557991714,2cyclictest15266-21sh00:10:161
6557991714,2cyclictest15266-21sh00:10:161
6557991714,2cyclictest1348-21lxd22:26:331
6557991714,2cyclictest0-21swapper/123:31:131
655799171,15cyclictest13585-21cat00:05:241
655799170,2cyclictest3989-21H222:10:211
655799170,2cyclictest29069-21cat00:35:131
655799170,2cyclictest23850-21expr00:25:131
655799170,2cyclictest22966-21smtp19:36:511
655799170,2cyclictest15376-21munin-plugin-st19:25:021
655799170,2cyclictest1522-21lxd21:36:491
655799170,2cyclictest1478-21snapd23:12:381
655799170,1cyclictest0-21swapper/122:10:391
655799170,1cyclictest0-21swapper/121:04:341
655799170,1cyclictest0-21swapper/120:21:271
655799170,16cyclictest3981-21H222:10:211
655799170,16cyclictest3981-21H222:10:211
655799170,16cyclictest32173-21/usr/sbin/munin22:45:151
655799170,16cyclictest27007-21chrt20:41:461
655799170,16cyclictest25336-21processes19:40:201
655799170,16cyclictest1829-21systemd-journal21:09:011
655799170,16cyclictest1486-21snapd22:30:091
655799170,16cyclictest1484-21snapd21:55:091
655799170,16cyclictest1478-21snapd20:29:581
655799170,16cyclictest10084-21grep19:15:131
655799170,15cyclictest3981-21H222:10:211
655799170,15cyclictest3976-21H222:10:211
655699172,1cyclictest0-21swapper/019:50:170
655699172,1cyclictest0-21swapper/019:50:170
6556991715,1cyclictest12958-21timerwakeupswit20:15:230
6556991714,2cyclictest7571-21hddtemp_smartct19:10:150
6556991714,2cyclictest455-21plymouthd21:57:130
6556991714,2cyclictest21629-21/usr/sbin/munin23:25:110
6556991714,2cyclictest1526-21lxd20:04:480
6556991714,2cyclictest14789-21nfsd423:10:190
6556991714,2cyclictest14135-21sed22:10:220
6556991714,2cyclictest1348-21lxd20:38:480
6556991714,2cyclictest0-21swapper/021:48:150
655699171,1cyclictest9-21ksoftirqd/021:30:560
655699171,15cyclictest309212chrt22:42:080
655699171,15cyclictest0-21swapper/020:20:180
655699170,2cyclictest28093-21cat20:45:140
655699170,2cyclictest28093-21cat20:45:130
655699170,2cyclictest21133-21smtpd23:24:140
655699170,2cyclictest19471-21sendmail_mailtr00:15:220
655699170,2cyclictest10151-21lxd21:16:480
655699170,16cyclictest5029-21sendmail_mailqu23:50:210
655699170,16cyclictest4790-21cat22:55:000
655699170,16cyclictest22004-21ntp_kernel_pll_00:20:180
655699170,16cyclictest21965-21missed_timers19:35:170
655699170,16cyclictest2007-21systemd-journal22:32:300
655699170,16cyclictest17485-21chrt19:26:180
655699170,16cyclictest1300-21lxd21:14:480
655699170,16cyclictest10669-21grep23:05:130
655699170,16cyclictest0-21swapper/021:41:090
655699170,16cyclictest0-21swapper/000:27:490
655699170,15cyclictest4035-21H222:10:210
655699170,15cyclictest0-21swapper/021:25:210
6558991614,1cyclictest0-21swapper/223:55:122
6558991614,1cyclictest0-21swapper/223:45:162
6558991614,1cyclictest0-21swapper/220:15:142
6558991614,1cyclictest0-21swapper/219:30:192
6558991614,1cyclictest0-21swapper/219:25:122
6558991614,1cyclictest0-21swapper/200:15:002
655899160,1cyclictest0-21swapper/220:05:152
655899160,15cyclictest32157-21cpuspeed_turbos19:55:142
655899160,15cyclictest12336-21fschecks_time00:05:192
655899160,15cyclictest0-21swapper/222:50:032
655899160,15cyclictest0-21swapper/222:05:022
6557991614,1cyclictest0-21swapper/123:55:151
6557991614,1cyclictest0-21swapper/123:40:131
6557991614,1cyclictest0-21swapper/120:10:151
655799160,1cyclictest0-21swapper/123:15:141
655799160,15cyclictest12282-21grep23:05:231
655799160,15cyclictest0-21swapper/121:25:061
655799160,15cyclictest0-21swapper/121:10:231
6556991614,1cyclictest0-21swapper/021:06:490
6556991614,1cyclictest0-21swapper/020:10:140
6556991614,1cyclictest0-21swapper/019:35:010
6556991614,1cyclictest0-21swapper/000:10:230
6556991614,1cyclictest0-21swapper/000:10:220
6556991613,2cyclictest27860-21timerandwakeup00:30:220
6556991613,2cyclictest13103-21expr19:20:110
655699160,2cyclictest5392-21expr22:55:150
655699160,2cyclictest5392-21expr22:55:150
655699160,1cyclictest0-21swapper/022:25:130
655699160,15cyclictest9341-21pzem_current23:00:210
655699160,15cyclictest5527-21apt-get20:05:120
655699160,15cyclictest28487-21smartctl23:35:200
655699160,15cyclictest25521-21grep23:30:170
655699160,15cyclictest0-21swapper/020:51:160
655699160,15cyclictest0-21swapper/020:40:150
655699160,15cyclictest0-21swapper/019:40:140
655799150,1cyclictest0-21swapper/120:05:181
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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