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2026-06-28 - 10:50
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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 rackcslot4.osadl.org (updated Sun Jun 28, 2026 00:44:52)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
883862270212,43sleep10-21swapper/119:08:571
881762263191,27sleep00-21swapper/019:06:410
179699670,4rtkit-daemon1795-21rtkit-daemon21:17:270
179699620,3rtkit-daemon1795-21rtkit-daemon20:05:251
179699610,4rtkit-daemon1795-21rtkit-daemon23:45:571
179699590,3rtkit-daemon0-21swapper/021:24:391
1730442580,3sleep0161rcuc/021:58:390
88642995613,26cyclictest233521-21sh23:21:390
8864299553,9cyclictest217189-21apt-get23:00:150
8864299542,9cyclictest267025-21apt-get00:10:140
8864299542,7cyclictest275913-21apt-get00:25:130
8864299541,6cyclictest137534-21apt-get21:10:100
88642995412,26cyclictest181044-21sh22:09:270
179699540,3rtkit-daemon1795-21rtkit-daemon22:46:141
8864299532,7cyclictest163143-21apt-get21:45:130
8864299532,12cyclictest137273-21diskmemload22:40:130
8864299531,9cyclictest166843-21apt-get21:50:140
8864299522,4cyclictest195803-21apt-get22:30:110
8864299521,8cyclictest195258-21ssh22:29:200
8864299521,6cyclictest181523-21apt-get22:10:120
179699520,4rtkit-daemon1795-21rtkit-daemon23:27:011
8864299513,9cyclictest260294-21apt-get00:00:150
8864299512,5cyclictest252996-21apt-get23:50:120
8864299511,8cyclictest272015-21ssh00:17:510
8864299511,10cyclictest212952-21ssh22:53:540
8864299503,6cyclictest242282-21apt-get23:35:120
8864299502,6cyclictest188847-21apt-get22:20:130
8864299502,5cyclictest256631-21apt-get23:55:130
8864299502,4cyclictest263753-21apt-get00:05:140
8864299502,4cyclictest249500-21apt-get23:45:140
8864299501,9cyclictest177657-21ssh22:04:480
8864299501,8cyclictest230561-21ssh23:18:070
8864299501,8cyclictest150300-21ssh21:26:050
8864299500,9cyclictest161165-21ssh21:41:020
179699500,4rtkit-daemon1795-21rtkit-daemon19:40:501
8864299492,4cyclictest245917-21apt-get23:40:120
8864299491,4cyclictest282545-21apt-get00:35:120
8864299490,8cyclictest208172-21ssh22:46:180
179699490,3rtkit-daemon1795-21rtkit-daemon20:45:301
8864299487,3cyclictest0-21swapper/021:30:340
8864299482,6cyclictest137273-21diskmemload22:35:170
8864299482,4cyclictest278889-21apt-get00:30:150
8864299482,4cyclictest213693-21apt-get22:55:140
8864299480,9cyclictest157657-21ssh21:36:040
8864299480,8cyclictest147114-21ssh21:21:460
8864299480,8cyclictest119994-21irqstats20:25:180
179699480,3rtkit-daemon1795-21rtkit-daemon19:16:150
8864299472,5cyclictest95211-21apt-get19:25:140
8864299471,9cyclictest239001-21diskstats23:30:160
8864299471,6cyclictest110851-21apt-get20:05:120
8864299470,8cyclictest225207-21ssh23:10:190
8864299465,5cyclictest137273-21diskmemload23:25:270
8864299461,9cyclictest125761-21apt-get20:40:120
8864299461,9cyclictest106742-21munin-run19:55:000
8864299461,8cyclictest224064-21python323:09:590
8864299461,8cyclictest107245-21perl19:55:170
8864299450,8cyclictest127921-21diskstats20:45:160
8864299440,8cyclictest273598-21/usr/sbin/munin00:20:220
8864299431,6cyclictest137273-21diskmemload22:16:440
179699420,3rtkit-daemon0-21swapper/123:23:171
8864299402,31cyclictest88761-21apt-get19:10:140
8864299402,10cyclictest115154-21apt-get20:15:130
179699400,3rtkit-daemon0-21swapper/100:12:071
179699400,2rtkit-daemon1795-21rtkit-daemon19:14:211
179699390,4rtkit-daemon1795-21rtkit-daemon23:10:041
179699380,4rtkit-daemon1795-21rtkit-daemon23:39:561
8864299368,3cyclictest0-21swapper/019:44:460
8864299367,6cyclictest119063-21seq20:22:510
179699360,4rtkit-daemon123786-21apt-get20:35:100
179699360,3rtkit-daemon0-21swapper/120:39:241
8864299351,10cyclictest97369-21diskstats19:30:140
179699350,4rtkit-daemon213626-21ssh22:55:061
179699350,4rtkit-daemon1795-21rtkit-daemon23:15:461
179699350,4rtkit-daemon1795-21rtkit-daemon22:36:071
179699350,3rtkit-daemon0-21swapper/123:06:141
179699350,3rtkit-daemon0-21swapper/120:51:581
8864299347,6cyclictest135756-21forks21:05:170
88642993410,3cyclictest131916-21fschecks_time20:55:170
179699340,4rtkit-daemon1795-21rtkit-daemon19:38:251
179699340,4rtkit-daemon1795-21rtkit-daemon00:33:311
179699340,4rtkit-daemon1795-21rtkit-daemon00:00:581
179699340,3rtkit-daemon0-21swapper/021:36:021
88646993330,2cyclictest66950irq/132-enp2s021:13:481
8864299339,3cyclictest104005-21mailstats19:45:230
8864299338,4cyclictest93646-21gltestperf19:20:170
8864299331,9cyclictest134162-21sed21:00:190
8864299331,5cyclictest112798-21apt-get20:10:110
8864299330,9cyclictest123155-21seq20:30:340
8864299330,10cyclictest129980-21fschecks_time20:50:150
179699330,4rtkit-daemon1795-21rtkit-daemon20:00:300
179699330,3rtkit-daemon1795-21rtkit-daemon21:33:031
179699330,1rtkit-daemon1795-21rtkit-daemon21:42:401
88646993213,12cyclictest203039-21apt-get22:40:141
179699320,3rtkit-daemon1795-21rtkit-daemon20:41:341
179699320,3rtkit-daemon0-21swapper/021:54:091
179699320,3rtkit-daemon0-21swapper/019:16:011
88646993128,2cyclictest66950irq/132-enp2s000:27:381
179699310,3rtkit-daemon1795-21rtkit-daemon22:22:301
179699310,3rtkit-daemon0-21swapper/019:59:321
1442602310,11sleep126-21ksoftirqd/121:18:421
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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