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2026-06-18 - 18:09
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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 rackcslot4.osadl.org (updated Thu Jun 18, 2026 12:44:53)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
24061932262185,28sleep10-21swapper/107:09:451
24058192253180,58sleep00-21swapper/007:05:460
24475802620,3sleep12447431-21python308:50:011
179699510,3rtkit-daemon0-21swapper/109:22:281
24636532500,4sleep02463657-21cpuspeed_turbos09:20:140
179699480,5rtkit-daemon2506438-21ssh10:18:191
25173672430,1sleep00-21swapper/010:33:370
2406349994114,6cyclictest26-21ksoftirqd/112:25:001
2406349994014,5cyclictest26-21ksoftirqd/112:30:001
2406349993914,5cyclictest26-21ksoftirqd/112:15:021
240634499389,6cyclictest13-21ksoftirqd/012:25:200
2406344993812,10cyclictest13-21ksoftirqd/011:50:120
2406349993715,7cyclictest26-21ksoftirqd/107:30:011
240634499378,6cyclictest13-21ksoftirqd/011:20:200
2406349993614,7cyclictest26-21ksoftirqd/110:15:011
2406349993612,4cyclictest26-21ksoftirqd/111:15:221
2406344993614,7cyclictest13-21ksoftirqd/011:35:010
2406349993513,6cyclictest26-21ksoftirqd/108:45:011
240634999348,5cyclictest26-21ksoftirqd/111:01:021
2406349993413,6cyclictest26-21ksoftirqd/110:20:011
2406344993414,5cyclictest13-21ksoftirqd/007:55:000
2406344993412,5cyclictest13-21ksoftirqd/011:05:020
2406344993410,7cyclictest13-21ksoftirqd/010:40:000
2406349993312,5cyclictest26-21ksoftirqd/109:35:011
2406349993312,5cyclictest26-21ksoftirqd/109:05:001
2406344993314,5cyclictest13-21ksoftirqd/010:50:570
2406344993312,6cyclictest13-21ksoftirqd/011:05:020
240634999325,3cyclictest141rcu_preempt08:15:001
2406349993214,5cyclictest26-21ksoftirqd/112:05:001
240634999321,2cyclictest141rcu_preempt07:50:021
2406349993212,5cyclictest26-21ksoftirqd/110:45:011
2406349993212,5cyclictest26-21ksoftirqd/109:55:251
2406349993211,5cyclictest26-21ksoftirqd/112:35:211
2406349993210,5cyclictest26-21ksoftirqd/111:55:221
240634499329,6cyclictest13-21ksoftirqd/012:05:260
2406344993227,3cyclictest66950irq/132-enp2s012:13:140
2406344993211,5cyclictest13-21ksoftirqd/010:00:010
2406344993211,5cyclictest13-21ksoftirqd/009:10:000
2406344993211,5cyclictest13-21ksoftirqd/008:20:010
2406344993210,7cyclictest13-21ksoftirqd/007:45:000
2406344993210,3cyclictest13-21ksoftirqd/010:28:320
240634999316,3cyclictest141rcu_preempt11:11:101
240634999315,5cyclictest26-21ksoftirqd/109:12:241
240634999315,3cyclictest141rcu_preempt09:30:011
2406349993113,5cyclictest26-21ksoftirqd/110:40:011
2406349993110,7cyclictest26-21ksoftirqd/108:05:001
2406349993110,2cyclictest141rcu_preempt07:15:031
240634499319,6cyclictest13-21ksoftirqd/009:20:010
240634499318,3cyclictest141rcu_preempt10:40:130
2406344993113,4cyclictest13-21ksoftirqd/011:35:210
2406344993111,5cyclictest13-21ksoftirqd/007:55:230
2406344993110,5cyclictest13-21ksoftirqd/008:05:220
240634999309,4cyclictest26-21ksoftirqd/109:44:251
240634999309,4cyclictest141rcu_preempt10:25:141
240634999306,4cyclictest141rcu_preempt11:40:131
2406349993013,5cyclictest26-21ksoftirqd/112:15:241
2406349993010,5cyclictest26-21ksoftirqd/109:18:351
240634499309,6cyclictest13-21ksoftirqd/008:30:020
240634499309,5cyclictest13-21ksoftirqd/012:00:000
240634499309,4cyclictest13-21ksoftirqd/010:03:190
240634499308,5cyclictest13-21ksoftirqd/008:15:000
240634499308,11cyclictest0-21swapper/009:37:060
240634499307,4cyclictest13-21ksoftirqd/010:55:180
240634499306,4cyclictest13-21ksoftirqd/008:35:110
2406344993011,5cyclictest13-21ksoftirqd/008:20:010
2406344993010,7cyclictest13-21ksoftirqd/007:45:020
2406344993010,7cyclictest13-21ksoftirqd/007:45:010
2406344993010,5cyclictest13-21ksoftirqd/007:35:000
2406344993010,3cyclictest13-21ksoftirqd/010:10:210
25399452290,4chrt2539944-21ssh11:05:021
240634999299,4cyclictest26-21ksoftirqd/107:35:081
240634999298,4cyclictest26-21ksoftirqd/110:58:141
240634999297,4cyclictest26-21ksoftirqd/111:28:311
2406349992921,2cyclictest2494544-21ssh10:01:411
2406349992912,5cyclictest26-21ksoftirqd/108:50:221
2406349992911,6cyclictest26-21ksoftirqd/111:45:221
2406349992911,5cyclictest26-21ksoftirqd/110:35:001
2406349992910,4cyclictest26-21ksoftirqd/110:51:011
240634499299,6cyclictest13-21ksoftirqd/012:35:000
240634499299,6cyclictest13-21ksoftirqd/011:45:140
240634499299,6cyclictest13-21ksoftirqd/007:25:240
240634499299,5cyclictest13-21ksoftirqd/009:25:240
240634499298,7cyclictest13-21ksoftirqd/009:30:110
240634499298,6cyclictest13-21ksoftirqd/012:20:440
240634499298,6cyclictest13-21ksoftirqd/011:40:140
240634499298,4cyclictest13-21ksoftirqd/009:50:210
240634499298,3cyclictest141rcu_preempt11:15:130
240634499297,4cyclictest2503741-21apt-get10:15:130
240634499296,8cyclictest13-21ksoftirqd/010:06:450
2406344992910,6cyclictest13-21ksoftirqd/011:10:230
179699290,5rtkit-daemon2602893-21/usr/sbin/munin12:30:211
240634999289,2cyclictest141rcu_preempt11:20:221
240634999288,3cyclictest141rcu_preempt08:35:001
240634999286,4cyclictest26-21ksoftirqd/109:49:531
240634999286,3cyclictest141rcu_preempt11:30:011
240634999282,4cyclictest26-21ksoftirqd/111:37:531
2406349992810,7cyclictest2583995-21/usr/sbin/munin12:05:221
240634499289,5cyclictest13-21ksoftirqd/008:50:020
240634499289,5cyclictest13-21ksoftirqd/008:00:220
240634499289,2cyclictest141rcu_preempt07:10:230
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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