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2026-05-22 - 23:10
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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 rackdslot1.osadl.org (updated Fri May 22, 2026 12:45:39)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
19312996833,4cyclictest41-21ksoftirqd/312:20:183
19312996328,10cyclictest41-21ksoftirqd/310:15:263
19312996230,4cyclictest41-21ksoftirqd/307:55:133
19312996226,9cyclictest41-21ksoftirqd/308:20:193
19312996128,8cyclictest41-21ksoftirqd/311:20:173
19312996028,8cyclictest41-21ksoftirqd/312:10:133
134491600,4ptp4l0-21swapper/211:30:032
19312995929,7cyclictest41-21ksoftirqd/310:30:223
19312995928,6cyclictest41-21ksoftirqd/309:50:193
19312995925,7cyclictest41-21ksoftirqd/307:25:143
19309995927,5cyclictest9-21ksoftirqd/009:10:010
19309995922,5cyclictest9-21ksoftirqd/011:10:230
19312995830,8cyclictest41-21ksoftirqd/308:25:153
19312995823,8cyclictest41-21ksoftirqd/311:00:163
19309995828,3cyclictest9-21ksoftirqd/009:45:210
19309995827,3cyclictest9-21ksoftirqd/009:15:140
19309995824,5cyclictest9-21ksoftirqd/010:50:150
134491580,5ptp4l0-21swapper/107:07:361
134491580,5ptp4l0-21swapper/107:07:361
1931299573,5cyclictest14954-21awk11:40:013
19309995728,3cyclictest9-21ksoftirqd/007:59:160
19309995726,4cyclictest9-21ksoftirqd/012:35:410
19309995726,4cyclictest9-21ksoftirqd/011:44:550
19309995725,4cyclictest9-21ksoftirqd/010:00:390
19309995724,4cyclictest9-21ksoftirqd/011:21:230
19309995723,4cyclictest9-21ksoftirqd/009:34:520
134491570,4ptp4l0-21swapper/011:45:300
134491570,3ptp4l0-21swapper/311:50:163
134491570,12ptp4l0-21swapper/007:18:430
19312995624,8cyclictest41-21ksoftirqd/309:20:163
19312995622,8cyclictest41-21ksoftirqd/310:50:003
19312995622,7cyclictest41-21ksoftirqd/309:25:153
19312995621,4cyclictest41-21ksoftirqd/311:30:143
1931299561,11cyclictest19560-21grep11:50:003
19309995630,8cyclictest9-21ksoftirqd/010:43:520
19309995622,3cyclictest9-21ksoftirqd/009:21:440
134491560,3ptp4l0-21swapper/211:22:362
1931299555,9cyclictest41-21ksoftirqd/309:15:273
1931299554,8cyclictest41-21ksoftirqd/310:45:013
19312995518,4cyclictest41-21ksoftirqd/310:55:003
19309995526,4cyclictest9-21ksoftirqd/008:33:290
19309995526,3cyclictest9-21ksoftirqd/011:50:280
19309995526,3cyclictest9-21ksoftirqd/009:25:150
19309995525,4cyclictest9-21ksoftirqd/010:58:070
19309995524,4cyclictest9-21ksoftirqd/009:53:090
19309995522,6cyclictest9-21ksoftirqd/012:06:080
19309995522,4cyclictest9-21ksoftirqd/009:04:350
134491550,4ptp4l0-21swapper/108:26:481
134491550,3ptp4l0-21swapper/108:10:281
1931299546,7cyclictest41-21ksoftirqd/310:10:013
19312995422,7cyclictest41-21ksoftirqd/312:00:163
19312995421,8cyclictest41-21ksoftirqd/308:35:003
19309995425,3cyclictest9-21ksoftirqd/009:58:500
19309995424,4cyclictest9-21ksoftirqd/007:37:170
134491540,4ptp4l0-21swapper/008:28:080
134491540,3ptp4l0-21swapper/208:25:002
1931299535,9cyclictest41-21ksoftirqd/310:35:263
19312995323,9cyclictest41-21ksoftirqd/308:05:013
19312995322,8cyclictest41-21ksoftirqd/307:20:133
19309995325,7cyclictest9-21ksoftirqd/011:05:140
19309995325,6cyclictest9-21ksoftirqd/007:14:090
19309995325,5cyclictest9-21ksoftirqd/010:29:120
19309995323,4cyclictest9-21ksoftirqd/012:35:000
19309995322,6cyclictest9-21ksoftirqd/011:25:190
19309995322,5cyclictest9-21ksoftirqd/010:45:070
19309995320,3cyclictest9-21ksoftirqd/009:13:040
134491530,4ptp4l0-21swapper/207:39:372
134491530,4ptp4l0-21swapper/108:41:111
134491530,4ptp4l0-21swapper/107:44:111
134491530,3ptp4l0-21swapper/212:14:342
1931299525,2cyclictest121rcu_preempt08:03:493
1931299524,7cyclictest41-21ksoftirqd/310:55:183
1931299523,6cyclictest7766-21awk09:05:013
1931299522,7cyclictest0-21swapper/312:35:153
1931299522,7cyclictest0-21swapper/308:54:213
19312995224,3cyclictest41-21ksoftirqd/307:30:163
19312995218,8cyclictest41-21ksoftirqd/307:14:393
1931299520,13cyclictest41-21ksoftirqd/312:30:103
1930999523,3cyclictest9-21ksoftirqd/009:00:000
19309995224,7cyclictest9-21ksoftirqd/012:10:200
19309995222,3cyclictest9-21ksoftirqd/010:15:220
19309995221,4cyclictest9-21ksoftirqd/012:18:000
19309995220,3cyclictest9-21ksoftirqd/008:37:110
19309995212,7cyclictest9-21ksoftirqd/012:25:170
134491520,4ptp4l0-21swapper/211:14:462
134491520,4ptp4l0-21swapper/210:45:012
134491520,3ptp4l0-21swapper/211:53:472
1931299514,10cyclictest41-21ksoftirqd/309:55:273
1931299513,7cyclictest41-21ksoftirqd/307:45:293
1931299512,7cyclictest0-21swapper/311:15:203
1931299512,7cyclictest0-21swapper/311:15:203
19312995117,8cyclictest41-21ksoftirqd/307:15:173
1931299510,12cyclictest41-21ksoftirqd/312:25:133
19309995122,4cyclictest9-21ksoftirqd/011:55:150
19309995112,6cyclictest9-21ksoftirqd/010:35:230
134491510,5ptp4l0-21swapper/208:30:472
134491510,4ptp4l0-21swapper/212:17:162
134491510,3ptp4l0-21swapper/108:55:151
134491510,11ptp4l0-21swapper/208:51:452
1931299507,3cyclictest121rcu_preempt08:43:093
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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