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2025-12-22 - 19:32
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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 Mon Dec 22, 2025 12:45:58)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
30298993735,2cyclictest0-21swapper/109:20:191
30298993534,1cyclictest0-21swapper/108:35:231
3029999202,17cyclictest0-21swapper/207:30:392
30299992016,3cyclictest0-21swapper/209:21:312
30299992016,3cyclictest0-21swapper/207:39:442
30299992016,3cyclictest0-21swapper/207:10:522
3029999201,2cyclictest4099-21H222:10:212
30298992017,2cyclictest4099-21H222:10:211
3029799202,17cyclictest0-21swapper/007:15:390
3029999193,15cyclictest0-21swapper/211:28:002
3029999192,16cyclictest0-21swapper/208:20:522
30299991916,2cyclictest8773-21cpu10:20:142
30299991915,2cyclictest24354-21nfsd410:45:192
3029999190,16cyclictest4099-21H222:10:212
3029999190,16cyclictest4035-21H222:10:212
3029999190,16cyclictest3991-21H222:10:212
3029999190,16cyclictest3989-21H222:10:212
3029999190,16cyclictest3976-21H222:10:212
30298991916,2cyclictest3984-21H222:10:211
3029899190,2cyclictest3991-21H222:10:211
3029899190,18cyclictest870-21systemd-logind10:58:521
3029899190,18cyclictest426-21systemd-udevd07:42:521
3029899190,18cyclictest0-21swapper/107:46:151
3029899190,16cyclictest4035-21H222:10:211
3029899190,16cyclictest4035-21H222:10:211
3029799192,16cyclictest0-21swapper/011:43:370
30297991917,1cyclictest0-21swapper/008:49:590
30297991916,2cyclictest2069-21systemd-udevd07:38:520
3029799190,18cyclictest0-21swapper/007:13:060
3029999182,1cyclictest20565-21mailstats12:35:212
30299991817,1cyclictest28-21ksoftirqd/209:02:522
30299991815,2cyclictest3981-21H222:10:212
30299991814,3cyclictest3985-21H222:10:212
30299991814,3cyclictest3981-21H222:10:212
30299991814,3cyclictest3976-21H222:10:212
30299991814,2cyclictest3983-21H222:10:212
30299991812,5cyclictest843-21systemd-network12:04:082
3029999181,15cyclictest0-21swapper/210:34:352
3029999180,17cyclictest3987-21H222:10:212
3029999180,17cyclictest3985-21H222:10:212
3029999180,17cyclictest3979-21H222:10:212
3029999180,17cyclictest3979-21H222:10:212
3029999180,17cyclictest3062-21uname11:05:182
3029999180,17cyclictest3062-21uname11:05:182
3029999180,17cyclictest0-21swapper/208:38:212
3029999180,16cyclictest3983-21H222:10:212
3029999180,16cyclictest3981-21H222:10:212
3029999180,16cyclictest27732-21smtpd08:56:312
3029899182,1cyclictest21-21ksoftirqd/110:12:241
3029899182,15cyclictest21-21ksoftirqd/111:07:381
3029899182,15cyclictest21-21ksoftirqd/111:07:371
3029899182,15cyclictest132872sleep111:22:271
30298991816,1cyclictest21-21ksoftirqd/112:04:411
30298991815,2cyclictest0-21swapper/110:53:401
30298991814,3cyclictest3981-21H222:10:211
30298991814,3cyclictest3979-21H222:10:211
30298991814,2cyclictest17085-21nfsd409:35:151
30298991813,4cyclictest0-21swapper/107:59:141
3029899181,2cyclictest21293-21cat10:40:181
3029899181,16cyclictest5326-21grep12:10:131
3029899181,16cyclictest4035-21H222:10:211
3029899180,2cyclictest25146-21cat11:45:011
3029899180,2cyclictest1481-21snapd07:37:531
3029899180,1cyclictest111rcu_preempt11:50:141
3029899180,17cyclictest3981-21H222:10:211
3029899180,15cyclictest3991-21H222:10:211
3029799182,2cyclictest4099-21H222:10:210
3029799182,15cyclictest9-21ksoftirqd/011:04:590
3029799182,15cyclictest9-21ksoftirqd/009:40:340
30297991816,1cyclictest9-21ksoftirqd/008:06:200
30297991816,1cyclictest6306-21fschecks_count11:10:160
30297991816,1cyclictest0-21swapper/011:25:200
30297991814,3cyclictest8763-21sh08:25:000
30297991814,3cyclictest870-21systemd-logind09:08:510
30297991814,3cyclictest3989-21H222:10:210
3029799181,2cyclictest3987-21H222:10:210
3029799180,16cyclictest4099-21H222:10:210
3029799180,15cyclictest3991-21H222:10:210
3029799180,15cyclictest3981-21H222:10:210
3029799180,15cyclictest25406-21nfsd409:50:180
30299991715,1cyclictest15892chrt11:04:422
30299991715,1cyclictest0-21swapper/212:25:182
30299991714,2cyclictest619-21sed09:05:212
30299991714,2cyclictest4434-21expr07:20:142
30299991714,2cyclictest22277-21chrt08:46:192
30299991714,2cyclictest13402-21chrt11:23:562
3029999171,0cyclictest0-21swapper/208:40:352
3029999170,2cyclictest3985-21H222:10:212
3029999170,2cyclictest23354-21fschecks_time11:40:152
3029999170,2cyclictest21222-21ls07:50:012
3029999170,2cyclictest2034-21latency07:15:202
3029999170,2cyclictest0-21swapper/209:41:002
3029999170,16cyclictest3989-21H222:10:212
3029999170,16cyclictest3985-21H222:10:212
3029999170,16cyclictest3981-21H222:10:212
3029999170,16cyclictest31985-21cron08:09:012
3029999170,16cyclictest31590-21http_loadtime11:55:152
3029999170,16cyclictest17361-21/usr/sbin/munin10:35:122
3029999170,16cyclictest17345-21ntpq07:40:192
3029999170,16cyclictest1483-21snapd10:25:092
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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