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2026-03-06 - 21:10
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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 highest latencies:
System rackcslot2.osadl.org (updated Fri Mar 06, 2026 12:43:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
527827360,8sleep10-21swapper/107:09:091
489426754,8sleep00-21swapper/007:05:090
5489993210,2cyclictest0-21swapper/012:14:220
5490993131,0cyclictest24-21ksoftirqd/110:51:081
5490993129,1cyclictest24-21ksoftirqd/109:49:271
5489993110,20cyclictest0-21swapper/009:17:120
5490993026,1cyclictest24-21ksoftirqd/109:17:591
549099300,28cyclictest32362-21kworker/u4:009:09:391
549099300,19cyclictest0-21swapper/107:34:391
5489993018,12cyclictest0-21swapper/010:09:570
548999299,19cyclictest0-21swapper/007:54:490
5489992929,0cyclictest0-21swapper/012:19:080
5490992827,0cyclictest24-21ksoftirqd/110:19:271
548999285,22cyclictest0-21swapper/010:08:530
5489992826,1cyclictest7-21ksoftirqd/009:44:270
5489992810,7cyclictest0-21swapper/012:38:180
549099276,4cyclictest24-21ksoftirqd/111:08:461
5490992726,0cyclictest24-21ksoftirqd/112:04:421
5489992726,0cyclictest7-21ksoftirqd/011:04:280
5489992726,0cyclictest7-21ksoftirqd/011:04:280
549099268,15cyclictest25159-21kworker/1:212:09:391
549099264,21cyclictest0-21swapper/112:37:481
5490992625,0cyclictest24-21ksoftirqd/108:04:411
5490992622,1cyclictest17629-21sh12:02:441
5490992621,3cyclictest24-21ksoftirqd/107:29:281
5490992621,3cyclictest24-21ksoftirqd/107:29:281
548999264,20cyclictest0-21swapper/011:19:050
548999260,25cyclictest0-21swapper/008:31:050
5490992524,1cyclictest24-21ksoftirqd/110:34:491
5490992522,2cyclictest0-21swapper/109:43:501
5490992511,4cyclictest91rcu_preempt09:19:401
549099250,5cyclictest91rcu_preempt10:39:381
548999253,20cyclictest0-21swapper/008:08:530
856522410,5sleep10-21swapper/110:20:521
5490992423,0cyclictest24-21ksoftirqd/107:14:391
5490992420,1cyclictest24-21ksoftirqd/109:34:301
5490992419,3cyclictest24-21ksoftirqd/109:54:441
549099240,2cyclictest91rcu_preempt11:53:191
549099240,16cyclictest0-21swapper/111:22:061
549099240,11cyclictest0-21swapper/110:44:451
548999245,18cyclictest0-21swapper/011:59:060
5489992415,5cyclictest15377-21apache212:29:460
5489992410,6cyclictest0-21swapper/007:34:390
5489992410,2cyclictest0-21swapper/008:17:150
5489992410,11cyclictest0-21swapper/008:24:380
5490992321,1cyclictest24-21ksoftirqd/111:44:411
5490992321,1cyclictest24-21ksoftirqd/111:09:431
5490992320,1cyclictest24-21ksoftirqd/109:51:451
5490992310,7cyclictest0-21swapper/111:15:221
5490992310,10cyclictest0-21swapper/111:59:071
548999232,4cyclictest0-21swapper/010:01:040
5489992310,7cyclictest0-21swapper/009:24:480
5489992310,6cyclictest0-21swapper/010:49:410
5489992310,3cyclictest0-21swapper/010:45:350
549099229,1cyclictest91rcu_preempt09:34:091
549099223,11cyclictest0-21swapper/110:09:391
549099222,5cyclictest91rcu_preempt08:19:381
5490992221,1cyclictest15390-21apache211:33:111
5490992221,0cyclictest0-21swapper/110:04:391
5490992220,0cyclictest24-21ksoftirqd/110:31:561
5490992218,3cyclictest15390-21apache210:00:011
5490992216,6cyclictest15390-21apache212:22:521
5490992214,3cyclictest91rcu_preempt07:22:441
5489992222,0cyclictest0-21swapper/011:40:150
5489992219,2cyclictest1199-21runrttasks07:19:070
5489992218,4cyclictest0-21swapper/010:41:450
5489992210,6cyclictest0-21swapper/012:06:460
549099217,8cyclictest2062-21taskset12:24:571
549099216,6cyclictest0-21swapper/110:59:471
549099216,6cyclictest0-21swapper/110:59:471
549099212,2cyclictest91rcu_preempt11:41:381
549099212,14cyclictest91rcu_preempt08:32:401
5490992117,2cyclictest24-21ksoftirqd/107:54:441
5490992115,3cyclictest15390-21apache211:29:041
5490992114,4cyclictest231ktimersoftd/112:14:431
5490992110,8cyclictest0-21swapper/111:35:381
5490992110,5cyclictest0-21swapper/108:49:381
548999218,11cyclictest0-21swapper/007:24:370
548999218,11cyclictest0-21swapper/007:24:370
548999216,8cyclictest0-21swapper/009:19:450
5489992118,2cyclictest15377-21apache212:20:030
5489992116,4cyclictest15390-21apache210:39:010
2303422110,0sleep00-21swapper/009:57:160
1178022110,0sleep10-21swapper/110:24:551
111322110,0sleep10-21swapper/109:27:401
549099206,12cyclictest231ktimersoftd/110:59:241
549099203,8cyclictest0-21swapper/107:39:421
5490992018,2cyclictest24-21ksoftirqd/112:30:361
5490992016,2cyclictest15390-21apache208:44:581
5490992013,3cyclictest91rcu_preempt08:54:481
5490992012,5cyclictest4032-21kworker/1:209:04:431
5490992011,5cyclictest231ktimersoftd/107:44:461
548999208,10cyclictest0-21swapper/010:14:450
5489992016,3cyclictest29344-21munin-node09:06:460
5489992013,2cyclictest81ktimersoftd/011:04:410
5489992011,6cyclictest32253-1kworker/u5:209:32:130
548999201,12cyclictest0-21swapper/007:29:410
5489992010,4cyclictest0-21swapper/009:09:560
5489992010,3cyclictest0-21swapper/008:39:380
549099199,6cyclictest24-21ksoftirqd/108:00:261
549099193,6cyclictest2805-21irqstats08:24:421
5490991910,5cyclictest0-21swapper/108:14:381
5490991910,4cyclictest0-21swapper/108:59:391
5490991910,4cyclictest0-21swapper/107:13:081
548999194,7cyclictest0-21swapper/007:49:450
548999193,4cyclictest0-21swapper/010:54:380
5489991910,7cyclictest0-21swapper/011:47:230
5489991910,6cyclictest0-21swapper/011:34:420
5489991910,5cyclictest0-21swapper/011:26:390
5489991910,5cyclictest0-21swapper/010:22:460
5489991910,4cyclictest0-21swapper/007:19:430
5489991910,3cyclictest0-21swapper/011:59:300
765221810,0sleep00-21swapper/008:37:370
750821810,0sleep10-21swapper/108:36:081
5490991814,3cyclictest28877-21apache_accesses08:09:381
548999185,8cyclictest0-21swapper/007:09:470
548999185,7cyclictest1199-21runrttasks09:49:430
548999184,9cyclictest0-21swapper/008:49:430
548999181,3cyclictest0-21swapper/012:26:170
5489991812,3cyclictest0-21swapper/011:11:390
5489991810,4cyclictest0-21swapper/009:44:410
5489991810,4cyclictest0-21swapper/007:59:390
5489991810,1cyclictest0-21swapper/008:19:410
5489991716,1cyclictest15377-21apache208:10:310
5489991715,1cyclictest0-21swapper/010:24:480
548999171,15cyclictest0-21swapper/009:34:420
5489991710,3cyclictest0-21swapper/008:59:490
5489991710,2cyclictest0-21swapper/010:29:460
5489991710,2cyclictest0-21swapper/007:39:380
549099165,4cyclictest0-21swapper/107:49:401
549099161,7cyclictest0-21swapper/108:39:411
548999165,9cyclictest0-21swapper/007:44:430
548999161,9cyclictest0-21swapper/011:29:460
5489991615,1cyclictest20494-21ssh11:22:070
5489991611,3cyclictest8927-21runrttasks11:49:490
5489991610,4cyclictest0-21swapper/008:54:400
5490991513,1cyclictest14546-21users07:29:491
548999153,6cyclictest0-21swapper/008:44:460
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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