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2026-09-22 - 12:47
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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 rack6slot0.osadl.org (updated Tue Sep 22, 2026 01:01:48)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
509299217199,12cyclictest0-21swapper/3322:20:1327
509299217199,12cyclictest0-21swapper/3322:20:1327
509299217189,15cyclictest0-21swapper/3321:55:2027
509299217189,15cyclictest0-21swapper/3321:55:2027
509299215183,21cyclictest0-21swapper/3300:30:1927
509299215183,21cyclictest0-21swapper/3300:30:1927
509299212191,14cyclictest755-21systemd-journal00:27:0127
509299212191,14cyclictest755-21systemd-journal00:27:0027
509299212191,14cyclictest755-21systemd-journal00:27:0027
509299211183,22cyclictest2454-21CPU27
509299211183,22cyclictest2454-21CPU27
509299210188,17cyclictest0-21swapper/3323:53:1827
509299210188,17cyclictest0-21swapper/3323:53:1827
509299207187,15cyclictest0-21swapper/3323:57:5827
509299207187,15cyclictest0-21swapper/3323:57:5827
509299207187,15cyclictest0-21swapper/3323:57:5827
509299206193,10cyclictest37346-21qemu-system-x8622:43:0527
509299206193,10cyclictest37346-21qemu-system-x8622:43:0527
509299206192,11cyclictest37257-21qemu-system-x8623:24:0327
509299206192,11cyclictest37257-21qemu-system-x8623:24:0227
509299206192,11cyclictest37257-21qemu-system-x8623:24:0227
505299200188,2cyclictest0-21swapper/000:37:550
505299200188,2cyclictest0-21swapper/000:37:550
509299194185,4cyclictest0-21swapper/3300:05:1527
509299194185,4cyclictest0-21swapper/3300:05:1527
509299193186,5cyclictest0-21swapper/3321:31:0027
509299193186,5cyclictest0-21swapper/3321:31:0027
509299192177,6cyclictest0-21swapper/3300:21:1027
509299192177,6cyclictest0-21swapper/3300:21:1027
509299192165,12cyclictest0-21swapper/3321:25:2027
509299192165,12cyclictest0-21swapper/3321:25:2027
509299192165,12cyclictest0-21swapper/3321:25:2027
505299192152,15cyclictest0-21swapper/021:13:270
505299192152,15cyclictest0-21swapper/021:13:260
505299190164,7cyclictest171rcu_preempt22:44:200
505299190164,7cyclictest171rcu_preempt22:44:200
506099189154,25cyclictest0-21swapper/723:05:4637
506099189154,25cyclictest0-21swapper/723:05:4637
506099189154,25cyclictest0-21swapper/723:05:4637
509299188182,3cyclictest9501-21env22:57:2427
509299188182,3cyclictest9501-21env22:57:2427
509299188182,3cyclictest9501-21env22:57:2427
509299188181,5cyclictest0-21swapper/3319:46:1327
509299188181,5cyclictest0-21swapper/3319:46:1327
509299188173,8cyclictest0-21swapper/3322:26:3227
509299188173,8cyclictest0-21swapper/3322:26:3227
509299188168,8cyclictest0-21swapper/3323:25:2127
509299188168,8cyclictest0-21swapper/3323:25:2127
509299188168,8cyclictest0-21swapper/3323:25:2127
506599187141,38cyclictest0-21swapper/1000:31:002
506599187141,38cyclictest0-21swapper/1000:31:002
509299186172,8cyclictest0-21swapper/3300:00:4827
509299186172,8cyclictest0-21swapper/3300:00:4727
509299186155,23cyclictest0-21swapper/3322:45:1327
509299186155,23cyclictest0-21swapper/3322:45:1327
507799186142,14cyclictest171rcu_preempt00:06:0814
507799186142,14cyclictest171rcu_preempt00:06:0814
506099186151,32cyclictest0-21swapper/721:22:5137
506099186151,32cyclictest0-21swapper/721:22:5037
509299185176,7cyclictest0-21swapper/3323:49:2927
509299185176,7cyclictest0-21swapper/3323:49:2927
507199184171,11cyclictest0-21swapper/1523:50:547
507199184171,11cyclictest0-21swapper/1523:50:547
505699184149,24cyclictest0-21swapper/322:41:4023
505699184149,24cyclictest0-21swapper/322:41:4023
505299184172,10cyclictest0-21swapper/023:25:450
505299184172,10cyclictest0-21swapper/023:25:450
505299184172,10cyclictest0-21swapper/023:25:450
509299183151,21cyclictest0-21swapper/3322:30:2527
509299183151,21cyclictest0-21swapper/3322:30:2527
509299183151,21cyclictest0-21swapper/3322:30:2427
50609918342,133cyclictest0-21swapper/723:40:3937
50609918342,133cyclictest0-21swapper/723:40:3937
506099183155,24cyclictest5176-21sshd23:15:3337
506099183155,24cyclictest5176-21sshd23:15:3237
505699183145,33cyclictest0-21swapper/322:54:4423
505699183145,33cyclictest0-21swapper/322:54:4423
505299183175,5cyclictest0-21swapper/021:55:310
505299183175,5cyclictest0-21swapper/021:55:310
509299182170,9cyclictest0-21swapper/3300:14:4327
509299182170,9cyclictest0-21swapper/3300:14:4227
509299182170,9cyclictest0-21swapper/3300:14:4227
509299182159,17cyclictest0-21swapper/3321:23:1127
509299182159,17cyclictest0-21swapper/3321:23:1127
509199182151,17cyclictest0-21swapper/3222:20:3626
509199182151,17cyclictest0-21swapper/3222:20:3526
50529918299,59cyclictest2462-21CPU0
50529918299,59cyclictest2462-21CPU0
509299181175,5cyclictest0-21swapper/3320:02:3327
509299181175,5cyclictest0-21swapper/3320:02:3327
509199181123,52cyclictest40388-21sshd21:30:5126
509199181123,52cyclictest40388-21sshd21:30:5126
505299181178,2cyclictest0-21swapper/019:41:440
505299181178,2cyclictest0-21swapper/019:41:440
509299180170,8cyclictest0-21swapper/3322:09:0827
509299180170,8cyclictest0-21swapper/3322:09:0827
509299180160,18cyclictest0-21swapper/3320:05:1527
509299180160,14cyclictest0-21swapper/3321:46:3427
509299180160,14cyclictest0-21swapper/3321:46:3427
5085991801,176cyclictest0-21swapper/2821:40:1721
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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