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2026-05-17 - 00:45
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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 50 highest latencies:
System rackcslot4.osadl.org (updated Sat May 16, 2026 12:44:52)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
30163052259187,27sleep00-21swapper/007:05:530
30163602257218,25sleep10-21swapper/107:06:321
307862421510,2sleep10-21swapper/109:26:151
179699720,5rtkit-daemon1795-21rtkit-daemon11:55:130
179699670,4rtkit-daemon1795-21rtkit-daemon08:40:311
179699670,4rtkit-daemon1795-21rtkit-daemon08:39:091
30349992610,4sleep03034991-21perf07:55:000
32131262570,4sleep10-21swapper/112:29:501
179699540,4rtkit-daemon1795-21rtkit-daemon09:32:151
179699500,4rtkit-daemon1795-21rtkit-daemon08:47:250
179699490,4rtkit-daemon1795-21rtkit-daemon12:02:010
179699470,4rtkit-daemon1795-21rtkit-daemon07:21:531
179699470,3rtkit-daemon1795-21rtkit-daemon10:48:210
30945712440,4sleep00-21swapper/009:48:140
179699430,4rtkit-daemon1795-21rtkit-daemon09:25:360
179699430,2rtkit-daemon1795-21rtkit-daemon09:09:481
179699390,4rtkit-daemon3214671-21timerwakeupswit12:30:250
179699390,4rtkit-daemon3064724-21diskmemload11:17:020
179699390,3rtkit-daemon1795-21rtkit-daemon11:04:250
179699380,7rtkit-daemon3089924-21runrttasks09:41:240
179699380,3rtkit-daemon0-21swapper/009:56:330
179699370,3rtkit-daemon0-21swapper/011:37:060
3016839993634,1cyclictest0-21swapper/109:53:091
301683599367,6cyclictest13-21ksoftirqd/009:10:240
179699360,5rtkit-daemon3177172-21df11:40:161
179699360,4rtkit-daemon0-21swapper/007:11:520
179699360,3rtkit-daemon0-21swapper/011:29:500
3016835993510,4cyclictest13-21ksoftirqd/007:39:170
301683599350,8cyclictest3133012-21apt-get10:40:130
179699350,3rtkit-daemon0-21swapper/107:49:501
179699350,3rtkit-daemon0-21swapper/011:44:440
179699350,3rtkit-daemon0-21swapper/011:11:110
301683999340,8cyclictest251rcuc/110:40:021
301683999340,21cyclictest284-20systemd-journal12:09:551
179699340,4rtkit-daemon1795-21rtkit-daemon07:16:320
179699340,3rtkit-daemon0-21swapper/012:29:210
179699340,3rtkit-daemon0-21swapper/010:06:271
3016835993312,9cyclictest141rcu_preempt09:23:150
179699330,4rtkit-daemon1795-21rtkit-daemon10:07:080
179699330,4rtkit-daemon1795-21rtkit-daemon09:02:461
179699330,3rtkit-daemon1795-21rtkit-daemon12:05:510
179699330,3rtkit-daemon1795-21rtkit-daemon10:19:461
179699330,3rtkit-daemon0-21swapper/011:50:441
179699330,3rtkit-daemon0-21swapper/011:45:060
179699330,3rtkit-daemon0-21swapper/010:29:281
179699330,3rtkit-daemon0-21swapper/008:47:501
31209162320,1sleep00-21swapper/010:24:250
301683999322,8cyclictest26-21ksoftirqd/108:10:001
301683999320,20cyclictest3056490-21apt-get08:50:031
301683599329,2cyclictest141rcu_preempt11:10:010
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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