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2025-12-24 - 22:52
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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 12:45:59)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2303999230,22cyclictest13004-21wc10:40:130
2304999225,16cyclictest3976-21H222:10:212
2303999222,2cyclictest3981-21H222:10:210
23039992214,7cyclictest17082-21expr11:45:140
23039992214,7cyclictest0-21swapper/008:26:150
23039992214,7cyclictest0-21swapper/007:35:180
2303999220,2cyclictest5485-21latency_hist11:25:010
2303999220,21cyclictest6447-21chrt08:34:120
2303999220,21cyclictest21236-21chrt08:01:120
2303999220,16cyclictest5516-21expr12:20:140
2303999220,16cyclictest20068-21cat11:50:130
23049992117,3cyclictest0-21swapper/212:27:232
2304999210,3cyclictest0-21swapper/212:03:212
23039992114,6cyclictest8868-21chrt10:31:050
23039992114,6cyclictest24829-21kernelversion11:00:170
23039992114,6cyclictest1914-21chrt11:15:250
23039992114,6cyclictest14615-21nvmesmart_nvme012:35:200
23039992114,6cyclictest0-21swapper/011:59:020
23039992114,6cyclictest0-21swapper/011:35:000
23039992114,6cyclictest0-21swapper/010:01:130
23039992114,6cyclictest0-21swapper/009:16:440
23039992114,6cyclictest0-21swapper/008:10:140
23039992113,7cyclictest12346-21cut08:45:010
2303999211,1cyclictest300252sleep010:12:470
2303999211,19cyclictest0-21swapper/010:10:010
2303999210,2cyclictest9910-21apt-config10:35:020
2303999210,2cyclictest29344-21awk08:15:190
2303999210,2cyclictest19530-21sed10:50:190
2303999210,20cyclictest0-21swapper/007:30:140
2303999210,1cyclictest3979-21H222:10:210
2303999210,1cyclictest0-21swapper/009:45:200
2303999210,1cyclictest0-21swapper/009:20:150
2303999210,1cyclictest0-21swapper/008:50:190
2303999210,16cyclictest9395-21cat12:25:220
2303999210,15cyclictest22979-21timerwakeupswit10:55:210
2303999210,15cyclictest13779-21nfsd408:45:180
2303999210,15cyclictest0-21swapper/011:10:110
2304999202,17cyclictest0-21swapper/209:30:172
23049992018,1cyclictest28-21ksoftirqd/210:47:202
23049992018,1cyclictest28-21ksoftirqd/210:47:202
23049992013,3cyclictest0-21swapper/209:51:142
2304499202,17cyclictest0-21swapper/107:44:351
2304499202,17cyclictest0-21swapper/107:44:351
23039992014,5cyclictest9577-21missed_timers09:35:220
23039992014,5cyclictest3976-21H222:10:210
23039992014,5cyclictest0-21swapper/009:15:010
23039992014,5cyclictest0-21swapper/008:05:140
23039992014,0cyclictest0-21swapper/007:45:180
23039992013,6cyclictest26603-21expr07:15:150
23039992012,2cyclictest31892-21expr12:10:140
2303999200,1cyclictest14199-21cpuspeed_turbos11:40:120
2303999200,1cyclictest0-21swapper/009:40:140
2303999200,1cyclictest0-21swapper/009:25:140
2303999200,1cyclictest0-21swapper/007:25:160
2303999200,19cyclictest0-21swapper/012:30:150
2303999200,19cyclictest0-21swapper/007:10:170
2303999200,18cyclictest0-21swapper/012:15:200
2303999200,16cyclictest6056-21cat11:25:140
2303999200,16cyclictest16557-21grep07:55:140
2303999200,15cyclictest29709-21/usr/sbin/munin07:20:190
2303999200,15cyclictest22410-21expr09:00:200
2303999200,15cyclictest22410-21expr09:00:190
2303999200,15cyclictest0-21swapper/008:55:160
2303999200,14cyclictest0-21swapper/010:48:520
2303999200,14cyclictest0-21swapper/010:48:520
2303999200,14cyclictest0-21swapper/010:25:160
2303999200,0cyclictest0-21swapper/009:05:150
2304999192,3cyclictest0-21swapper/210:07:402
23049991916,2cyclictest27527-21idleruntime09:10:152
2304999190,16cyclictest3985-21H222:10:212
23044991916,2cyclictest3981-21H222:10:211
2304499191,3cyclictest23908-21egrep09:05:121
2304499191,17cyclictest3989-21H222:10:211
2304499191,17cyclictest0-21swapper/111:26:121
2304499190,3cyclictest0-21swapper/111:15:141
2304499190,3cyclictest0-21swapper/109:00:171
2304499190,3cyclictest0-21swapper/109:00:171
2304499190,16cyclictest3985-21H222:10:211
23039991914,4cyclictest0-21swapper/012:05:150
23039991913,5cyclictest3989-21H222:10:210
23039991913,5cyclictest3981-21H222:10:210
23039991913,0cyclictest0-21swapper/007:40:200
23039991913,0cyclictest0-21swapper/007:40:200
23039991911,2cyclictest18282-21ps09:50:200
2303999190,1cyclictest0-21swapper/010:20:180
2303999190,1cyclictest0-21swapper/010:15:180
2303999190,18cyclictest0-21swapper/012:00:150
2303999190,18cyclictest0-21swapper/011:35:140
2303999190,0cyclictest0-21swapper/011:09:260
2304999182,15cyclictest3981-21H222:10:212
2304999182,15cyclictest28-21ksoftirqd/211:36:212
2304999182,15cyclictest0-21swapper/211:55:022
23049991816,1cyclictest0-21swapper/210:51:542
23049991816,1cyclictest0-21swapper/208:56:442
23049991815,2cyclictest4099-21H222:10:212
23049991815,2cyclictest3991-21H222:10:212
23049991815,2cyclictest20420-21nfsd408:00:182
23049991814,3cyclictest6605-21nfsd407:35:182
23049991814,3cyclictest3985-21H222:10:212
23049991814,3cyclictest3985-21H222:10:212
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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