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2026-04-11 - 05:19
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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 Apr 11, 2026 00:45:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
52752206172,22sleep10-21swapper/119:09:561
139491206172,23phc2sys0-21swapper/319:05:463
52802201168,22sleep00-21swapper/019:09:590
51822201169,21sleep20-21swapper/219:08:442
2652921590,4sleep3557799cyclictest23:15:153
528228262,11sleep20-21swapper/219:10:012
255482780,3sleep31306-21lldpd22:05:163
5575996733,4cyclictest25-21ksoftirqd/100:04:591
139391650,1ptp4l401ktimersoftd/300:17:333
5576996411,9cyclictest33-21ksoftirqd/221:34:592
5575996126,8cyclictest25-21ksoftirqd/100:15:241
5575996029,4cyclictest25-21ksoftirqd/120:10:241
5575996027,4cyclictest25-21ksoftirqd/120:40:231
5575996027,4cyclictest25-21ksoftirqd/119:50:271
5575996025,3cyclictest25-21ksoftirqd/120:50:111
5575995931,4cyclictest25-21ksoftirqd/123:45:261
5575995930,4cyclictest25-21ksoftirqd/119:30:181
5575995930,4cyclictest25-21ksoftirqd/119:30:181
5575995928,3cyclictest25-21ksoftirqd/121:25:141
5575995924,3cyclictest25-21ksoftirqd/120:05:221
5575995917,4cyclictest25-21ksoftirqd/121:40:251
5575995917,4cyclictest25-21ksoftirqd/121:40:251
5575995829,4cyclictest25-21ksoftirqd/120:20:171
5575995828,4cyclictest25-21ksoftirqd/119:25:171
5575995819,9cyclictest25-21ksoftirqd/100:35:161
5574995829,7cyclictest9-21ksoftirqd/019:15:250
5575995727,4cyclictest25-21ksoftirqd/122:50:261
5575995727,4cyclictest25-21ksoftirqd/100:30:001
5575995727,3cyclictest25-21ksoftirqd/122:25:141
5575995726,4cyclictest25-21ksoftirqd/120:35:111
5575995725,3cyclictest25-21ksoftirqd/121:10:171
5575995725,3cyclictest25-21ksoftirqd/121:10:171
5575995724,4cyclictest25-21ksoftirqd/122:35:151
5575995724,4cyclictest25-21ksoftirqd/120:55:191
5574995724,8cyclictest9-21ksoftirqd/021:50:210
5574995721,10cyclictest9-21ksoftirqd/020:00:000
139391570,1ptp4l401ktimersoftd/323:06:263
5575995625,4cyclictest25-21ksoftirqd/123:30:001
5575995624,4cyclictest25-21ksoftirqd/119:55:231
5575995623,3cyclictest25-21ksoftirqd/123:10:001
5575995623,3cyclictest25-21ksoftirqd/122:20:201
5574995626,6cyclictest9-21ksoftirqd/022:50:220
5574995623,7cyclictest9-21ksoftirqd/020:05:140
284772560,7sleep20-21swapper/200:25:192
5576995525,4cyclictest33-21ksoftirqd/223:10:262
5576995513,8cyclictest33-21ksoftirqd/220:35:002
5576995513,8cyclictest33-21ksoftirqd/220:35:002
5575995525,3cyclictest25-21ksoftirqd/121:25:011
5575995523,4cyclictest25-21ksoftirqd/121:30:151
5574995520,4cyclictest9-21ksoftirqd/000:30:010
139391550,1ptp4l401ktimersoftd/322:45:433
5576995431,5cyclictest33-21ksoftirqd/221:20:012
5575995433,3cyclictest25-21ksoftirqd/122:00:251
5575995424,4cyclictest25-21ksoftirqd/120:15:151
5575995424,4cyclictest25-21ksoftirqd/100:08:241
5575995424,3cyclictest25-21ksoftirqd/121:55:131
5575995423,3cyclictest25-21ksoftirqd/122:40:131
5575995419,9cyclictest25-21ksoftirqd/100:30:221
5577995323,4cyclictest41-21ksoftirqd/319:51:333
557699539,10cyclictest33-21ksoftirqd/222:40:132
139391530,1ptp4l401ktimersoftd/320:33:303
139391530,1ptp4l401ktimersoftd/320:33:293
5576995221,5cyclictest33-21ksoftirqd/223:30:202
5576995214,8cyclictest33-21ksoftirqd/220:05:152
5576995213,11cyclictest33-21ksoftirqd/220:00:232
5576995213,11cyclictest33-21ksoftirqd/220:00:232
557599523,2cyclictest121rcu_preempt23:40:001
5575995227,7cyclictest25-21ksoftirqd/123:55:121
5575995224,4cyclictest25-21ksoftirqd/119:10:181
5574995225,4cyclictest9-21ksoftirqd/021:10:260
5574995225,4cyclictest9-21ksoftirqd/021:10:260
5574995224,9cyclictest9-21ksoftirqd/021:05:000
5574995223,6cyclictest9-21ksoftirqd/000:05:180
5574995221,9cyclictest9-21ksoftirqd/022:15:140
5574995221,7cyclictest9-21ksoftirqd/022:05:150
5574995220,7cyclictest9-21ksoftirqd/022:25:010
5574995219,8cyclictest9-21ksoftirqd/021:05:150
5574995219,8cyclictest9-21ksoftirqd/020:00:160
5574995219,8cyclictest9-21ksoftirqd/020:00:160
5576995117,9cyclictest33-21ksoftirqd/220:15:182
5574995124,6cyclictest9-21ksoftirqd/023:40:270
5574995123,6cyclictest9-21ksoftirqd/022:12:290
5574995123,6cyclictest9-21ksoftirqd/022:12:290
5574995122,4cyclictest9-21ksoftirqd/000:35:250
5574995121,4cyclictest9-21ksoftirqd/022:55:210
5574995121,4cyclictest9-21ksoftirqd/020:40:190
139391510,1ptp4l21809-21sed19:40:253
557699509,4cyclictest33-21ksoftirqd/219:15:192
557699507,11cyclictest33-21ksoftirqd/219:50:002
5575995034,4cyclictest25-21ksoftirqd/121:20:011
5575995017,4cyclictest25-21ksoftirqd/119:35:211
5574995023,4cyclictest9-21ksoftirqd/021:45:210
5574995020,3cyclictest9-21ksoftirqd/000:15:140
5574995017,3cyclictest121rcu_preempt22:45:230
5574995014,4cyclictest9-21ksoftirqd/022:25:170
5576994924,18cyclictest33-21ksoftirqd/219:30:142
5576994924,18cyclictest33-21ksoftirqd/219:30:142
557699491,2cyclictest32358-21mailstats21:10:232
557699491,2cyclictest32358-21mailstats21:10:232
5576994912,5cyclictest33-21ksoftirqd/223:10:012
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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