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2026-06-29 - 15:46
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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 Mon Jun 29, 2026 12:45:58)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
110042236173,51sleep30-21swapper/307:08:323
110042236173,51sleep30-21swapper/307:08:313
109812232167,22sleep00-21swapper/007:08:110
109812232167,22sleep00-21swapper/007:08:110
108582207173,22sleep20-21swapper/207:06:372
108582207173,22sleep20-21swapper/207:06:372
110022204172,21sleep10-21swapper/107:08:291
110022204172,21sleep10-21swapper/107:08:291
823821740,4sleep21142299cyclictest10:25:182
11421995928,4cyclictest25-21ksoftirqd/107:20:001
11421995727,3cyclictest25-21ksoftirqd/112:10:131
86172560,2sleep00-21swapper/011:35:000
11421995626,4cyclictest25-21ksoftirqd/110:25:141
11421995625,8cyclictest25-21ksoftirqd/110:45:281
11421995524,7cyclictest25-21ksoftirqd/112:20:011
139391540,1ptp4l401ktimersoftd/308:55:273
11421995426,7cyclictest25-21ksoftirqd/111:45:001
11421995425,8cyclictest25-21ksoftirqd/110:30:141
11421995417,5cyclictest25-21ksoftirqd/110:25:011
176082530,3sleep30-21swapper/310:45:163
139391530,1ptp4l401ktimersoftd/312:25:213
11421995325,4cyclictest25-21ksoftirqd/110:15:251
11421995324,7cyclictest25-21ksoftirqd/107:20:251
11421995322,8cyclictest25-21ksoftirqd/111:34:591
11421995321,10cyclictest25-21ksoftirqd/108:15:001
11421995320,8cyclictest25-21ksoftirqd/109:55:011
11421995320,8cyclictest25-21ksoftirqd/108:25:011
139391520,1ptp4l401ktimersoftd/311:11:293
11421995222,8cyclictest25-21ksoftirqd/111:50:001
11421995221,8cyclictest25-21ksoftirqd/107:55:231
11421995125,7cyclictest25-21ksoftirqd/108:05:161
11421995123,8cyclictest25-21ksoftirqd/108:45:161
11421995121,8cyclictest25-21ksoftirqd/107:45:121
11421995120,8cyclictest25-21ksoftirqd/110:45:011
11421995120,4cyclictest25-21ksoftirqd/112:30:241
11421995119,8cyclictest25-21ksoftirqd/110:50:271
11421995119,8cyclictest25-21ksoftirqd/108:35:201
11421995119,3cyclictest25-21ksoftirqd/108:50:221
11421995118,4cyclictest25-21ksoftirqd/111:20:181
11421995118,4cyclictest25-21ksoftirqd/108:15:121
11421995116,3cyclictest25-21ksoftirqd/111:20:001
11421995024,3cyclictest25-21ksoftirqd/112:05:201
11421995022,4cyclictest25-21ksoftirqd/109:40:221
11421995022,4cyclictest25-21ksoftirqd/109:40:221
11421995019,4cyclictest25-21ksoftirqd/111:50:231
11421995019,4cyclictest25-21ksoftirqd/109:25:011
11421995017,8cyclictest25-21ksoftirqd/111:05:261
11421995017,8cyclictest25-21ksoftirqd/108:00:191
11421994921,6cyclictest25-21ksoftirqd/108:30:211
11421994920,4cyclictest25-21ksoftirqd/109:05:251
11421994919,8cyclictest25-21ksoftirqd/109:45:211
11421994919,8cyclictest25-21ksoftirqd/109:10:281
11421994919,8cyclictest25-21ksoftirqd/109:10:281
11421994919,3cyclictest25-21ksoftirqd/110:10:001
11421994917,4cyclictest25-21ksoftirqd/109:15:181
11421994917,3cyclictest25-21ksoftirqd/107:50:181
11421994916,4cyclictest25-21ksoftirqd/109:30:141
11421994819,8cyclictest25-21ksoftirqd/110:59:591
11421994817,8cyclictest25-21ksoftirqd/112:20:131
11421994815,4cyclictest25-21ksoftirqd/109:00:171
11421994718,7cyclictest25-21ksoftirqd/107:40:161
11421994717,7cyclictest25-21ksoftirqd/108:25:141
11421994715,5cyclictest25-21ksoftirqd/110:35:291
11421994714,4cyclictest25-21ksoftirqd/111:04:591
11421994713,4cyclictest25-21ksoftirqd/110:05:001
1142199466,7cyclictest25-21ksoftirqd/107:30:291
11421994621,8cyclictest25-21ksoftirqd/112:25:251
11421994618,6cyclictest25-21ksoftirqd/109:35:181
11421994615,8cyclictest25-21ksoftirqd/111:55:181
11421994615,4cyclictest25-21ksoftirqd/111:25:111
11421994614,4cyclictest25-21ksoftirqd/112:00:171
11421994613,7cyclictest25-21ksoftirqd/107:10:201
11421994613,4cyclictest25-21ksoftirqd/112:35:211
11421994511,4cyclictest25-21ksoftirqd/108:40:131
11421994511,4cyclictest25-21ksoftirqd/108:40:131
1142199448,4cyclictest25-21ksoftirqd/111:10:201
11421994417,7cyclictest25-21ksoftirqd/111:35:181
11421994415,10cyclictest25-21ksoftirqd/109:00:001
11421994413,4cyclictest25-21ksoftirqd/109:55:181
139391430,0ptp4l401ktimersoftd/307:51:563
11421994338,3cyclictest25-21ksoftirqd/107:40:001
1142199425,4cyclictest25-21ksoftirqd/109:25:141
139391410,0ptp4l401ktimersoftd/311:09:443
139391410,0ptp4l401ktimersoftd/309:25:393
57898400,7rtkit-daemon0-21swapper/007:52:140
11422994033,4cyclictest33-21ksoftirqd/209:35:002
11421993933,3cyclictest25-21ksoftirqd/110:10:241
11421993933,3cyclictest25-21ksoftirqd/110:10:241
11421993933,3cyclictest25-21ksoftirqd/107:25:151
11423993834,2cyclictest3680-21cut10:15:203
11423993831,4cyclictest41-21ksoftirqd/310:44:413
11422993830,5cyclictest33-21ksoftirqd/212:25:122
11420993833,3cyclictest5233-21cron08:05:000
11422993730,4cyclictest33-21ksoftirqd/210:50:132
11420993727,8cyclictest9-21ksoftirqd/011:15:010
1394913630,3phc2sys41-21ksoftirqd/309:10:283
1394913630,3phc2sys41-21ksoftirqd/309:10:283
139391360,7ptp4l0-21swapper/311:00:133
139391360,0ptp4l401ktimersoftd/309:15:163
11423993630,4cyclictest41-21ksoftirqd/311:37:403
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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