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2026-03-28 - 11:34
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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 rackdslot3.osadl.org (updated Sat Mar 28, 2026 00:45:51)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
139491230164,22phc2sys0-21swapper/319:07:523
42762203171,21sleep10-21swapper/119:06:271
23732203169,23sleep20-21swapper/219:05:122
23662201168,22sleep00-21swapper/019:05:060
45502163124,13sleep10-21swapper/119:10:011
1961021540,6sleep0484199cyclictest00:10:100
1454521500,6sleep3484499cyclictest00:00:143
1454521500,6sleep3484499cyclictest00:00:133
1570421460,7sleep2484399cyclictest22:55:132
1394918262,11phc2sys0-21swapper/319:10:013
4844996129,7cyclictest41-21ksoftirqd/323:00:013
4844996126,8cyclictest41-21ksoftirqd/320:40:003
4844996030,3cyclictest41-21ksoftirqd/300:25:243
4844996027,4cyclictest41-21ksoftirqd/322:25:003
4844996026,4cyclictest41-21ksoftirqd/323:55:003
4844995930,8cyclictest41-21ksoftirqd/319:35:163
4844995927,4cyclictest41-21ksoftirqd/321:40:103
4844995831,3cyclictest41-21ksoftirqd/321:50:183
4844995724,7cyclictest41-21ksoftirqd/300:35:223
4844995723,6cyclictest41-21ksoftirqd/322:30:183
4844995720,8cyclictest41-21ksoftirqd/323:40:173
4844995626,4cyclictest41-21ksoftirqd/320:55:133
4844995623,9cyclictest41-21ksoftirqd/323:05:203
4844995623,4cyclictest41-21ksoftirqd/323:35:183
4844995621,6cyclictest41-21ksoftirqd/323:25:143
4844995618,11cyclictest41-21ksoftirqd/320:05:013
4844995527,7cyclictest41-21ksoftirqd/300:15:173
4844995525,7cyclictest41-21ksoftirqd/321:05:143
4844995523,4cyclictest41-21ksoftirqd/322:16:553
4844995522,9cyclictest41-21ksoftirqd/321:45:323
4844995521,7cyclictest41-21ksoftirqd/323:30:183
4844995520,8cyclictest41-21ksoftirqd/321:20:143
4844995519,8cyclictest41-21ksoftirqd/319:50:143
4844995517,4cyclictest41-21ksoftirqd/322:06:473
484299551,3cyclictest0-21swapper/122:12:421
4844995428,7cyclictest41-21ksoftirqd/322:00:193
4844995428,7cyclictest41-21ksoftirqd/300:10:163
4844995425,6cyclictest41-21ksoftirqd/320:25:153
4844995326,7cyclictest41-21ksoftirqd/323:20:183
4844995325,8cyclictest41-21ksoftirqd/300:30:263
4844995319,4cyclictest41-21ksoftirqd/320:05:143
4844995314,4cyclictest41-21ksoftirqd/320:52:153
484499527,3cyclictest41-21ksoftirqd/322:50:163
4844995222,4cyclictest41-21ksoftirqd/322:00:003
4844995220,4cyclictest41-21ksoftirqd/323:10:183
4844995215,4cyclictest41-21ksoftirqd/321:13:003
4844995215,4cyclictest41-21ksoftirqd/320:30:243
4844995214,9cyclictest41-21ksoftirqd/300:24:083
4844995213,4cyclictest41-21ksoftirqd/321:19:473
4844995122,3cyclictest41-21ksoftirqd/319:55:273
4844995121,3cyclictest41-21ksoftirqd/320:40:183
4844995119,4cyclictest41-21ksoftirqd/322:35:143
4844995118,9cyclictest41-21ksoftirqd/319:30:003
4844995022,4cyclictest41-21ksoftirqd/319:30:193
4844995021,9cyclictest41-21ksoftirqd/320:15:183
4844995021,4cyclictest41-21ksoftirqd/323:55:243
4844995019,8cyclictest41-21ksoftirqd/323:00:143
4844995019,8cyclictest41-21ksoftirqd/323:00:143
4844994924,7cyclictest41-21ksoftirqd/323:45:133
4844994914,11cyclictest41-21ksoftirqd/322:48:523
484499486,5cyclictest41-21ksoftirqd/321:30:153
484499486,2cyclictest41-21ksoftirqd/319:45:153
484499485,2cyclictest41-21ksoftirqd/320:20:143
4844994814,4cyclictest41-21ksoftirqd/323:16:283
4844994813,11cyclictest41-21ksoftirqd/322:28:233
4844994812,11cyclictest41-21ksoftirqd/300:05:543
4844994811,10cyclictest41-21ksoftirqd/320:12:543
484499476,5cyclictest41-21ksoftirqd/319:40:273
484499475,3cyclictest41-21ksoftirqd/322:40:133
484499472,8cyclictest41-21ksoftirqd/321:35:263
484499465,3cyclictest41-21ksoftirqd/320:45:243
4844994622,7cyclictest41-21ksoftirqd/319:20:193
4844994513,9cyclictest41-21ksoftirqd/321:29:463
4843994425,16cyclictest33-21ksoftirqd/222:51:032
4842994428,13cyclictest25-21ksoftirqd/123:27:261
484499434,5cyclictest41-21ksoftirqd/319:15:163
4844994311,11cyclictest41-21ksoftirqd/322:14:133
484299430,3cyclictest14186-21chrt21:44:001
484499424,2cyclictest41-21ksoftirqd/321:03:533
484299420,2cyclictest296032sleep123:21:401
484299386,19cyclictest4457-21seq23:37:071
484299385,20cyclictest21225-21seq19:44:571
4842993831,5cyclictest25-21ksoftirqd/122:46:311
4842993732,3cyclictest25-21ksoftirqd/119:57:591
4842993730,4cyclictest25-21ksoftirqd/123:17:441
4842993730,4cyclictest25-21ksoftirqd/120:50:291
484299371,3cyclictest3537-21taskset20:14:131
4843993631,3cyclictest33-21ksoftirqd/222:15:102
4843993630,4cyclictest33-21ksoftirqd/223:59:592
4843993630,4cyclictest33-21ksoftirqd/222:02:192
4843993630,4cyclictest33-21ksoftirqd/221:24:122
4843993629,4cyclictest29880-21ls23:25:002
484399361,34cyclictest18829-21kworker/2:200:35:252
4842993630,4cyclictest25-21ksoftirqd/123:44:141
4842993630,4cyclictest25-21ksoftirqd/100:01:241
4842993630,4cyclictest25-21ksoftirqd/100:01:241
4841993630,4cyclictest9-21ksoftirqd/019:59:240
484199360,2cyclictest121rcu_preempt23:25:100
4843993530,3cyclictest33-21ksoftirqd/200:31:472
4843993529,4cyclictest33-21ksoftirqd/222:37:252
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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