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2026-05-21 - 13:55
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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 rackdslot4.osadl.org (updated Thu May 21, 2026 00:45:50)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
138591221162,47phc2sys0-21swapper/319:06:013
217982204171,22sleep00-21swapper/019:08:280
217682202168,23sleep20-21swapper/219:08:052
215652202169,22sleep10-21swapper/119:05:281
3206321670,6sleep12220899cyclictest21:40:001
66652830,5sleep1223-21systemd-journal23:00:001
22209996632,6cyclictest33-21ksoftirqd/200:15:002
22209996229,10cyclictest33-21ksoftirqd/221:00:142
22209996129,9cyclictest33-21ksoftirqd/220:55:182
22209996129,8cyclictest33-21ksoftirqd/222:20:172
22209996126,4cyclictest33-21ksoftirqd/219:30:242
22209996030,8cyclictest33-21ksoftirqd/222:15:182
22209996027,7cyclictest33-21ksoftirqd/223:35:182
22209996027,6cyclictest33-21ksoftirqd/200:15:172
22209996026,6cyclictest33-21ksoftirqd/222:30:002
22209995930,4cyclictest33-21ksoftirqd/223:55:142
22209995925,10cyclictest33-21ksoftirqd/223:05:012
22209995923,10cyclictest33-21ksoftirqd/222:30:132
22209995922,6cyclictest33-21ksoftirqd/220:25:242
22209995918,11cyclictest33-21ksoftirqd/219:10:182
22209995831,6cyclictest33-21ksoftirqd/222:50:172
22209995829,9cyclictest33-21ksoftirqd/219:25:002
22209995828,5cyclictest33-21ksoftirqd/223:05:192
22209995828,3cyclictest33-21ksoftirqd/221:55:142
22209995827,9cyclictest33-21ksoftirqd/219:25:182
22209995827,9cyclictest33-21ksoftirqd/219:25:182
22209995827,4cyclictest33-21ksoftirqd/223:15:162
22209995825,8cyclictest33-21ksoftirqd/221:30:002
22209995822,6cyclictest33-21ksoftirqd/220:45:262
22209995821,10cyclictest33-21ksoftirqd/221:15:222
22209995728,5cyclictest33-21ksoftirqd/200:00:182
22209995726,9cyclictest33-21ksoftirqd/221:40:182
22209995726,9cyclictest33-21ksoftirqd/220:35:122
22209995726,8cyclictest33-21ksoftirqd/222:10:182
22209995725,5cyclictest33-21ksoftirqd/223:25:132
22209995725,5cyclictest33-21ksoftirqd/200:20:122
22209995721,6cyclictest33-21ksoftirqd/220:20:172
22209995720,10cyclictest33-21ksoftirqd/222:35:242
138491570,8ptp4l401ktimersoftd/322:39:443
22209995628,9cyclictest33-21ksoftirqd/219:15:122
22209995626,9cyclictest33-21ksoftirqd/223:40:242
22209995625,5cyclictest33-21ksoftirqd/221:45:252
22209995623,4cyclictest33-21ksoftirqd/220:10:162
22209995620,6cyclictest33-21ksoftirqd/219:55:222
22209995620,5cyclictest33-21ksoftirqd/220:30:162
22209995525,9cyclictest33-21ksoftirqd/219:40:152
22209995525,5cyclictest33-21ksoftirqd/222:55:232
22209995525,5cyclictest33-21ksoftirqd/222:45:122
22209995521,10cyclictest33-21ksoftirqd/221:05:262
22209995518,5cyclictest33-21ksoftirqd/200:35:162
2220999545,7cyclictest33-21ksoftirqd/222:05:262
22209995426,7cyclictest33-21ksoftirqd/220:05:152
22209995425,7cyclictest33-21ksoftirqd/219:50:142
22209995424,9cyclictest33-21ksoftirqd/223:10:142
22209995418,5cyclictest33-21ksoftirqd/221:30:222
149852540,4sleep114987-21df_abs22:10:131
22209995327,10cyclictest33-21ksoftirqd/200:30:142
22209995319,6cyclictest33-21ksoftirqd/221:20:272
22209995317,5cyclictest33-21ksoftirqd/221:10:272
22209995219,3cyclictest33-21ksoftirqd/223:50:242
22209995216,5cyclictest33-21ksoftirqd/222:05:012
2220999507,3cyclictest33-21ksoftirqd/200:05:142
22209995023,9cyclictest33-21ksoftirqd/220:05:012
22209995023,6cyclictest33-21ksoftirqd/223:20:222
22209995022,5cyclictest33-21ksoftirqd/200:25:122
22209995015,8cyclictest33-21ksoftirqd/219:46:112
2220999494,4cyclictest24173-21idleruntime-cro23:35:002
2220999486,5cyclictest33-21ksoftirqd/220:40:232
2220999480,7cyclictest33-21ksoftirqd/221:50:162
2220999471,8cyclictest33-21ksoftirqd/219:40:002
22209994718,5cyclictest33-21ksoftirqd/222:40:242
2220799473,2cyclictest121rcu_preempt00:20:120
138491470,1ptp4l401ktimersoftd/300:20:333
2220999462,4cyclictest33-21ksoftirqd/221:35:282
2220999461,10cyclictest33-21ksoftirqd/220:15:142
2220999444,6cyclictest33-21ksoftirqd/223:45:122
2220999444,6cyclictest33-21ksoftirqd/223:45:122
138491440,0ptp4l401ktimersoftd/320:36:303
2220999432,5cyclictest33-21ksoftirqd/220:50:252
138491430,0ptp4l401ktimersoftd/323:00:263
138491430,0ptp4l401ktimersoftd/322:50:573
138491430,0ptp4l401ktimersoftd/320:48:293
22207994237,3cyclictest31537-21apt23:50:000
22207994237,3cyclictest31537-21apt23:50:000
22208994136,3cyclictest25-21ksoftirqd/119:59:591
138491410,1ptp4l401ktimersoftd/321:13:153
22210993931,5cyclictest41-21ksoftirqd/322:29:593
22207993932,4cyclictest9-21ksoftirqd/020:50:050
22207993932,4cyclictest31742-21cron20:35:010
22207993831,4cyclictest9-21ksoftirqd/022:47:470
138491380,1ptp4l401ktimersoftd/321:32:423
22210993730,4cyclictest41-21ksoftirqd/321:10:013
22210993729,5cyclictest41-21ksoftirqd/323:50:003
22210993729,5cyclictest41-21ksoftirqd/323:50:003
22208993730,4cyclictest25-21ksoftirqd/122:21:211
22208993730,4cyclictest25-21ksoftirqd/122:20:011
22207993731,4cyclictest9-21ksoftirqd/021:47:050
22210993630,4cyclictest41-21ksoftirqd/300:04:053
22210993629,4cyclictest41-21ksoftirqd/319:12:243
22208993631,3cyclictest25-21ksoftirqd/121:59:591
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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