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2025-12-18 - 12:14
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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 Thu Dec 18, 2025 00:45:48)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
316892228168,49sleep10-21swapper/119:08:201
318022205172,22sleep20-21swapper/219:09:502
317782204170,22sleep30-21swapper/319:09:303
314922201168,22sleep00-21swapper/019:05:460
114921400,4sleep33211299cyclictest22:35:163
32112996630,7cyclictest41-21ksoftirqd/320:55:003
3211199666,12cyclictest378-21perf22:35:002
32112996534,8cyclictest41-21ksoftirqd/319:40:003
32112996530,8cyclictest41-21ksoftirqd/323:00:003
32112996433,8cyclictest41-21ksoftirqd/320:55:243
32112996330,3cyclictest41-21ksoftirqd/300:00:003
32112996131,4cyclictest41-21ksoftirqd/320:40:193
32112996130,4cyclictest41-21ksoftirqd/322:45:273
32112996129,8cyclictest41-21ksoftirqd/323:55:003
32112996127,6cyclictest41-21ksoftirqd/320:45:153
32112996127,5cyclictest41-21ksoftirqd/321:25:243
32112996030,3cyclictest41-21ksoftirqd/321:20:163
32112996026,7cyclictest41-21ksoftirqd/321:00:293
32112996022,11cyclictest41-21ksoftirqd/319:15:003
32112995923,8cyclictest41-21ksoftirqd/300:10:233
3211199596,17cyclictest10556-21df_abs22:55:132
3211199596,11cyclictest19040-21grep19:50:142
3211199592,18cyclictest0-21swapper/220:00:222
32112995828,4cyclictest41-21ksoftirqd/320:30:003
32112995827,8cyclictest41-21ksoftirqd/322:30:273
32112995821,11cyclictest41-21ksoftirqd/323:05:253
32112995821,11cyclictest41-21ksoftirqd/323:05:253
3211199584,10cyclictest31720-21cat20:15:212
32112995728,4cyclictest41-21ksoftirqd/321:55:263
32112995727,3cyclictest41-21ksoftirqd/322:05:163
32112995727,3cyclictest41-21ksoftirqd/322:05:163
32112995727,3cyclictest41-21ksoftirqd/319:30:163
32112995725,4cyclictest41-21ksoftirqd/322:55:003
32112995721,9cyclictest41-21ksoftirqd/321:20:003
32112995720,8cyclictest41-21ksoftirqd/321:10:223
3211199576,11cyclictest30227-21cut23:35:212
3211199574,11cyclictest4508-21date19:20:012
3211199573,11cyclictest14879-21cut19:40:192
32112995627,7cyclictest41-21ksoftirqd/319:50:243
32112995626,8cyclictest41-21ksoftirqd/321:50:183
32112995626,4cyclictest41-21ksoftirqd/323:00:263
32112995625,4cyclictest41-21ksoftirqd/320:05:153
32112995624,9cyclictest41-21ksoftirqd/320:35:253
32112995624,8cyclictest41-21ksoftirqd/319:20:223
32112995623,10cyclictest41-21ksoftirqd/323:30:143
32112995622,9cyclictest41-21ksoftirqd/300:10:003
32112995620,8cyclictest41-21ksoftirqd/321:35:243
3211199565,11cyclictest30660-21date20:15:012
3211199564,12cyclictest15793-21mailstats00:10:242
3211199564,11cyclictest28030-21cut21:15:182
3211199563,16cyclictest0-21swapper/219:55:222
3211199563,12cyclictest9349-21switchtime22:50:252
3211199563,11cyclictest5433-21cut19:20:192
3211199563,11cyclictest21811-21cut22:10:192
265172560,2sleep10-21swapper/122:20:181
32112995528,3cyclictest41-21ksoftirqd/300:00:143
32112995525,7cyclictest41-21ksoftirqd/321:50:003
32112995523,9cyclictest41-21ksoftirqd/323:25:013
32112995521,7cyclictest41-21ksoftirqd/319:55:133
3211199555,11cyclictest4019-21cut22:40:192
3211199554,9cyclictest16749-21cat20:50:242
3211199554,18cyclictest6570-21date21:40:002
3211199554,11cyclictest7459-21irqrtprio21:40:182
3211199554,11cyclictest17271-21date23:10:002
3211199554,11cyclictest17271-21date23:10:002
213762550,7sleep03210999cyclictest21:00:270
151492550,3sleep125-21ksoftirqd/120:50:011
32112995425,4cyclictest41-21ksoftirqd/323:40:123
32112995423,4cyclictest41-21ksoftirqd/320:15:003
32112995423,4cyclictest41-21ksoftirqd/319:40:223
32112995422,8cyclictest41-21ksoftirqd/322:25:183
32112995422,10cyclictest41-21ksoftirqd/320:20:133
32112995422,10cyclictest41-21ksoftirqd/319:15:243
32112995421,8cyclictest41-21ksoftirqd/323:35:153
32112995421,7cyclictest41-21ksoftirqd/321:40:153
32112995420,8cyclictest41-21ksoftirqd/319:25:193
32112995420,4cyclictest41-21ksoftirqd/300:30:193
32112995415,9cyclictest41-21ksoftirqd/322:10:253
3211199547,11cyclictest28505-21sensors23:30:252
3211199546,9cyclictest11186-21cat20:40:172
3211199545,10cyclictest10985-21expr19:30:262
3211199544,14cyclictest4505-21/usr/sbin/munin23:50:202
3211199543,8cyclictest24771-21/usr/sbin/munin21:10:272
3211199543,11cyclictest8060-21latency_hist20:35:012
3211199543,11cyclictest4258-21irqrtprio20:25:192
3211199543,11cyclictest17372-21/usr/sbin/munin23:10:242
3211199543,11cyclictest17136-21irqrtprio22:00:182
3211199543,11cyclictest12999-21cpuspeed20:45:112
3211199542,11cyclictest0-21swapper/221:35:002
3211199542,10cyclictest0-21swapper/221:20:152
3211199542,10cyclictest0-21swapper/220:05:202
26572540,4sleep32662-21irqrtprio21:30:193
3211299534,3cyclictest41-21ksoftirqd/322:05:013
32112995324,8cyclictest41-21ksoftirqd/323:10:263
32112995323,8cyclictest41-21ksoftirqd/321:05:143
32112995323,8cyclictest41-21ksoftirqd/300:20:183
32112995322,10cyclictest41-21ksoftirqd/319:45:223
3211199535,18cyclictest30029-21unixbench_singl22:25:292
3211199533,11cyclictest23887-21latency_hist00:30:002
32112995221,9cyclictest41-21ksoftirqd/323:45:143
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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