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2026-01-03 - 19:26
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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
Compare latency of primary with shadow system
Characteristics of the 100 highest latencies:
System rack3slot6.osadl.org (updated Sat Jan 03, 2026 12:45:05)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1244998746,15cyclictest14-21ksoftirqd/009:35:190
1244998641,26cyclictest14-21ksoftirqd/007:27:500
1244998634,32cyclictest14-21ksoftirqd/012:16:410
1251998364,12cyclictest26-21ksoftirqd/110:20:141
3189927732,33sleep10-21swapper/107:05:161
268862740,7sleep00-21swapper/011:20:180
1244997439,23cyclictest14-21ksoftirqd/009:20:320
1244997243,15cyclictest14-21ksoftirqd/007:50:180
1244997127,9cyclictest14-21ksoftirqd/011:50:170
77627021,39sleep00-21swapper/007:07:270
1244997035,23cyclictest14-21ksoftirqd/010:10:390
226482690,6sleep00-21swapper/011:10:010
124499695,22cyclictest22105-21apt-get08:05:120
1244996941,16cyclictest14-21ksoftirqd/009:40:150
1244996941,16cyclictest14-21ksoftirqd/009:40:140
1244996941,16cyclictest14-21ksoftirqd/008:12:520
1244996935,17cyclictest14-21ksoftirqd/009:11:240
124499687,30cyclictest151rcu_preempt10:55:350
124499686,54cyclictest9396-21apt-get07:30:120
1244996742,17cyclictest5234-21apt-get10:20:150
124499669,41cyclictest12787-31find07:39:350
124499669,41cyclictest12787-31find07:39:340
1244996626,35cyclictest30388-21aten2.4-expect10:00:180
124499658,45cyclictest19953-21runrttasks07:57:430
1244996551,9cyclictest14-21ksoftirqd/012:33:490
1244996544,16cyclictest14-21ksoftirqd/011:35:270
1244996515,28cyclictest27384-21memory09:50:280
1251996446,9cyclictest26-21ksoftirqd/107:50:131
1251996435,19cyclictest0-21swapper/111:40:221
124499647,39cyclictest6263-21df07:20:300
1244996443,9cyclictest14-21ksoftirqd/010:47:340
1244996436,22cyclictest14-21ksoftirqd/011:58:550
1244996433,22cyclictest14-21ksoftirqd/008:04:360
124499637,29cyclictest151rcu_preempt10:25:140
1244996334,24cyclictest14-21ksoftirqd/007:10:260
1244996311,15cyclictest14-21ksoftirqd/008:50:290
1251996231,18cyclictest0-21swapper/108:35:131
1244996242,15cyclictest14-21ksoftirqd/010:30:190
1244996241,9cyclictest14-21ksoftirqd/010:40:410
1244996230,14cyclictest14-21ksoftirqd/008:34:400
1244996227,16cyclictest14-21ksoftirqd/009:25:340
1251996134,17cyclictest0-21swapper/109:25:141
124499617,40cyclictest736-21memory08:35:250
1244996139,17cyclictest14-21ksoftirqd/008:15:180
124499613,17cyclictest5542-21taskset07:20:010
1244996122,13cyclictest14-21ksoftirqd/008:45:190
1251996033,14cyclictest26-21ksoftirqd/110:45:131
1251996032,16cyclictest0-21swapper/109:05:111
1251996032,16cyclictest0-21swapper/109:05:111
1251996031,17cyclictest0-21swapper/111:15:231
1251996030,17cyclictest0-21swapper/109:30:161
1251996030,17cyclictest0-21swapper/109:10:181
124499607,32cyclictest151rcu_preempt09:45:340
1244996033,16cyclictest14-21ksoftirqd/011:00:170
1244996020,25cyclictest24329-21latency_hist11:15:010
1244996013,25cyclictest14-21ksoftirqd/009:15:160
125199598,16cyclictest0-21swapper/112:35:231
1251995931,15cyclictest0-21swapper/111:25:121
1244995933,19cyclictest448-21dbus-daemon09:34:590
1244995927,13cyclictest14-21ksoftirqd/011:45:230
1244995912,22cyclictest14-21ksoftirqd/010:50:180
1251995845,9cyclictest26-21ksoftirqd/109:40:121
1251995845,9cyclictest26-21ksoftirqd/109:40:121
1251995832,18cyclictest500-21snmpd12:20:131
1251995832,18cyclictest0-21swapper/110:30:131
1251995831,17cyclictest0-21swapper/108:25:141
1251995831,16cyclictest0-21swapper/110:15:141
1251995831,15cyclictest0-21swapper/108:55:161
1251995829,17cyclictest0-21swapper/112:00:141
1251995829,17cyclictest0-21swapper/110:35:121
1251995829,16cyclictest0-21swapper/107:40:131
1251995817,34cyclictest0-21swapper/111:35:251
1244995834,15cyclictest14-21ksoftirqd/009:06:490
1244995834,15cyclictest14-21ksoftirqd/009:06:480
1244995826,13cyclictest14-21ksoftirqd/012:00:410
1244995824,12cyclictest14-21ksoftirqd/012:10:390
1244995823,15cyclictest29201-21aten2.4-expect08:25:170
1244995818,15cyclictest9107-21aten2.4-expect09:00:170
1251995731,17cyclictest0-21swapper/110:00:161
1251995729,19cyclictest0-21swapper/109:55:161
1251995729,17cyclictest0-21swapper/111:00:151
1251995729,16cyclictest26-21ksoftirqd/111:55:111
1251995728,17cyclictest0-21swapper/112:30:141
1251995728,17cyclictest0-21swapper/111:10:141
124499576,13cyclictest25957-21users11:15:460
1244995736,16cyclictest14-21ksoftirqd/008:43:040
1244995724,21cyclictest14-21ksoftirqd/010:16:290
1244995724,15cyclictest14-21ksoftirqd/007:40:260
1244995723,9cyclictest11035-21chrt12:05:250
1244995721,11cyclictest14-21ksoftirqd/007:45:320
1244995721,11cyclictest14-21ksoftirqd/007:45:310
1244995718,13cyclictest14-21ksoftirqd/008:20:120
1244995718,13cyclictest14-21ksoftirqd/008:20:110
125199565,24cyclictest0-21swapper/108:31:361
1251995629,17cyclictest0-21swapper/107:20:231
1251995628,16cyclictest0-21swapper/110:50:161
1251995628,16cyclictest0-21swapper/108:10:131
124499569,31cyclictest22943-21munin-run12:40:010
1244995636,16cyclictest14-21ksoftirqd/011:30:170
1244995622,22cyclictest14-21ksoftirqd/011:43:320
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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