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2025-12-06 - 06:19
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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 Sat Dec 06, 2025 00:45:46)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
137191205171,22phc2sys0-21swapper/319:07:073
124672204170,22sleep10-21swapper/119:06:121
126182202169,22sleep20-21swapper/219:08:102
124612201168,22sleep00-21swapper/019:06:070
1096821770,7sleep01305399cyclictest21:20:000
13055996730,4cyclictest33-21ksoftirqd/220:05:002
136991660,1ptp4l401ktimersoftd/300:21:513
136991630,1ptp4l401ktimersoftd/321:48:453
13055996326,7cyclictest33-21ksoftirqd/222:30:262
13055996324,6cyclictest33-21ksoftirqd/221:45:002
134562610,2sleep10-21swapper/122:30:221
315732600,3sleep20-21swapper/200:15:212
13055995926,7cyclictest33-21ksoftirqd/200:05:242
13055995925,6cyclictest33-21ksoftirqd/219:20:002
13055995924,6cyclictest33-21ksoftirqd/200:05:002
13055995924,6cyclictest33-21ksoftirqd/200:05:002
13055995923,6cyclictest33-21ksoftirqd/222:20:182
13055995922,6cyclictest33-21ksoftirqd/222:25:172
136991580,1ptp4l401ktimersoftd/323:35:253
136991580,0ptp4l401ktimersoftd/320:42:503
13055995827,7cyclictest33-21ksoftirqd/223:00:242
13055995827,4cyclictest33-21ksoftirqd/220:45:012
13055995728,4cyclictest33-21ksoftirqd/220:05:142
13055995728,4cyclictest33-21ksoftirqd/220:05:142
13055995727,4cyclictest33-21ksoftirqd/219:30:152
13055995627,7cyclictest33-21ksoftirqd/223:35:132
13055995626,9cyclictest33-21ksoftirqd/222:45:182
13055995624,7cyclictest33-21ksoftirqd/222:15:012
13055995623,4cyclictest33-21ksoftirqd/221:15:192
13055995620,7cyclictest33-21ksoftirqd/221:54:592
13055995617,6cyclictest33-21ksoftirqd/219:50:122
13055995527,7cyclictest33-21ksoftirqd/219:45:202
13055995525,7cyclictest33-21ksoftirqd/222:50:262
13055995525,4cyclictest33-21ksoftirqd/223:15:252
13055995525,4cyclictest33-21ksoftirqd/220:23:052
13055995520,6cyclictest33-21ksoftirqd/222:15:212
13055995520,6cyclictest33-21ksoftirqd/219:10:222
13055995519,5cyclictest33-21ksoftirqd/223:20:252
202742540,5sleep01305399cyclictest20:30:230
13055995428,3cyclictest33-21ksoftirqd/220:39:362
13055995425,7cyclictest33-21ksoftirqd/219:20:162
13055995425,5cyclictest33-21ksoftirqd/200:29:162
13055995425,4cyclictest33-21ksoftirqd/222:55:372
13055995424,4cyclictest33-21ksoftirqd/200:34:432
13055995424,11cyclictest33-21ksoftirqd/220:55:232
13055995424,11cyclictest33-21ksoftirqd/200:35:242
13055995423,4cyclictest33-21ksoftirqd/222:42:322
13055995422,8cyclictest33-21ksoftirqd/223:05:142
13055995422,3cyclictest33-21ksoftirqd/200:20:222
13055995420,7cyclictest33-21ksoftirqd/221:00:252
13055995420,4cyclictest33-21ksoftirqd/223:30:142
13055995417,11cyclictest33-21ksoftirqd/223:45:012
136991530,1ptp4l401ktimersoftd/319:35:553
13055995325,3cyclictest33-21ksoftirqd/220:10:572
13055995324,3cyclictest33-21ksoftirqd/223:25:552
13055995323,4cyclictest33-21ksoftirqd/221:38:182
13055995319,6cyclictest33-21ksoftirqd/219:40:192
262252520,5sleep126227-21latency19:35:201
13055995226,7cyclictest33-21ksoftirqd/219:30:002
13055995221,4cyclictest33-21ksoftirqd/221:05:142
13055995219,5cyclictest33-21ksoftirqd/220:45:222
13055995131,11cyclictest33-21ksoftirqd/221:10:162
13055995125,6cyclictest33-21ksoftirqd/222:05:232
13055995118,4cyclictest33-21ksoftirqd/222:01:012
13055995116,4cyclictest33-21ksoftirqd/223:55:272
13053995126,5cyclictest9-21ksoftirqd/021:30:190
13055995020,9cyclictest33-21ksoftirqd/220:50:152
13055995017,5cyclictest33-21ksoftirqd/221:55:132
136991490,1ptp4l401ktimersoftd/322:23:243
13055994918,6cyclictest33-21ksoftirqd/221:20:162
13055994918,4cyclictest33-21ksoftirqd/222:35:182
13055994916,10cyclictest33-21ksoftirqd/223:10:142
13055994911,6cyclictest33-21ksoftirqd/223:45:252
1305599485,3cyclictest33-21ksoftirqd/220:30:012
13055994821,6cyclictest33-21ksoftirqd/219:35:172
13055994819,4cyclictest33-21ksoftirqd/220:30:172
13055994818,6cyclictest33-21ksoftirqd/219:55:252
13055994814,5cyclictest33-21ksoftirqd/220:15:152
13055994717,3cyclictest33-21ksoftirqd/221:46:292
13055994710,5cyclictest33-21ksoftirqd/200:10:132
13055994615,5cyclictest33-21ksoftirqd/223:50:122
1276224636,4sleep10-21swapper/119:10:011
1371914332,4phc2sys0-21swapper/319:10:013
136991430,0ptp4l401ktimersoftd/322:50:113
1305599432,3cyclictest33-21ksoftirqd/221:25:192
136991420,1ptp4l401ktimersoftd/323:10:283
1305599425,3cyclictest33-21ksoftirqd/221:34:142
13053994237,3cyclictest9825-21cron00:40:000
132891410,1getstats0-21swapper/322:05:023
13053994134,4cyclictest9275-21cron20:10:000
13053994134,4cyclictest9275-21cron20:10:000
136991400,0ptp4l401ktimersoftd/321:15:183
13056994036,2cyclictest41-21ksoftirqd/323:19:593
13053993934,3cyclictest9-21ksoftirqd/022:49:590
13056993731,4cyclictest41-21ksoftirqd/323:56:423
13056993731,3cyclictest41-21ksoftirqd/321:20:183
13053993732,3cyclictest9-21ksoftirqd/022:20:010
13053993732,3cyclictest9-21ksoftirqd/020:30:000
13056993630,4cyclictest41-21ksoftirqd/320:07:513
13056993630,4cyclictest41-21ksoftirqd/320:07:513
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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