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2025-12-22 - 23:05
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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 Dec 22, 2025 12:45:52)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
33392203168,23sleep30-21swapper/307:06:203
33392203168,23sleep30-21swapper/307:06:203
33372203170,22sleep10-21swapper/107:06:181
33372203170,22sleep10-21swapper/107:06:181
33292202169,22sleep00-21swapper/007:06:140
33292202169,22sleep00-21swapper/007:06:140
34972200167,22sleep20-21swapper/207:08:252
34972200167,22sleep20-21swapper/207:08:252
36192162123,13sleep10-21swapper/107:10:001
139391760,0ptp4l391rcuc/310:15:163
3913997332,4cyclictest41-21ksoftirqd/312:20:183
3912997218,10cyclictest33-21ksoftirqd/210:20:002
3912996731,14cyclictest33-21ksoftirqd/209:50:262
3912996433,4cyclictest33-21ksoftirqd/210:20:152
3912996433,3cyclictest33-21ksoftirqd/210:45:272
3913996327,3cyclictest41-21ksoftirqd/310:25:203
3913996324,4cyclictest41-21ksoftirqd/312:10:193
3912996330,4cyclictest33-21ksoftirqd/211:25:132
391199638,11cyclictest19044-21sed11:00:281
391199638,10cyclictest16687-21/usr/sbin/munin09:50:171
391199636,15cyclictest0-21swapper/107:50:011
3913996225,10cyclictest41-21ksoftirqd/307:40:183
3913996224,9cyclictest41-21ksoftirqd/307:35:243
3913996222,7cyclictest41-21ksoftirqd/311:50:223
3912996231,4cyclictest33-21ksoftirqd/208:20:282
391199626,17cyclictest0-21swapper/110:10:001
3913996129,4cyclictest41-21ksoftirqd/310:40:193
3913996126,8cyclictest41-21ksoftirqd/310:55:153
3913996125,9cyclictest41-21ksoftirqd/311:00:253
3913996124,4cyclictest41-21ksoftirqd/311:15:233
3913996120,10cyclictest41-21ksoftirqd/311:30:213
3912996131,4cyclictest33-21ksoftirqd/208:00:222
3912996129,3cyclictest33-21ksoftirqd/208:00:002
3913996029,4cyclictest41-21ksoftirqd/307:45:293
3913996028,9cyclictest41-21ksoftirqd/308:05:133
3913996028,4cyclictest41-21ksoftirqd/308:55:273
3913996028,4cyclictest41-21ksoftirqd/308:55:273
3913996026,4cyclictest41-21ksoftirqd/312:00:253
3913996025,4cyclictest41-21ksoftirqd/309:45:153
3913996023,9cyclictest41-21ksoftirqd/309:10:193
3913996023,4cyclictest41-21ksoftirqd/308:25:223
3913996020,9cyclictest41-21ksoftirqd/310:10:153
3912996029,4cyclictest33-21ksoftirqd/207:40:272
3912996021,5cyclictest33-21ksoftirqd/207:25:192
391199608,11cyclictest732-21cat09:15:261
391199605,17cyclictest0-21swapper/108:05:201
3913995930,3cyclictest41-21ksoftirqd/307:10:183
3913995926,4cyclictest41-21ksoftirqd/308:15:013
3913995926,3cyclictest41-21ksoftirqd/310:20:263
3913995924,3cyclictest41-21ksoftirqd/312:35:003
3913995922,11cyclictest41-21ksoftirqd/311:40:003
3912995932,3cyclictest33-21ksoftirqd/211:10:002
3912995930,4cyclictest33-21ksoftirqd/209:15:252
3912995929,4cyclictest33-21ksoftirqd/212:15:252
3912995929,3cyclictest33-21ksoftirqd/211:40:002
391199598,12cyclictest3246-21mailstats11:35:261
3913995830,3cyclictest41-21ksoftirqd/310:05:183
3913995829,4cyclictest41-21ksoftirqd/309:50:143
3913995828,8cyclictest41-21ksoftirqd/310:55:003
3913995822,10cyclictest41-21ksoftirqd/308:15:203
3912995829,3cyclictest33-21ksoftirqd/212:20:122
3912995828,4cyclictest33-21ksoftirqd/210:40:222
391199587,18cyclictest28452-21fschecks_time08:00:161
391199587,11cyclictest17735-21df_abs08:45:151
391199587,11cyclictest14648-21sed08:40:001
391199587,10cyclictest16131-21df_abs07:35:121
3913995728,4cyclictest41-21ksoftirqd/308:40:193
3913995724,3cyclictest41-21ksoftirqd/309:15:143
3913995722,3cyclictest41-21ksoftirqd/312:25:233
3913995722,3cyclictest41-21ksoftirqd/307:50:273
3912995728,4cyclictest33-21ksoftirqd/207:10:262
3912995727,4cyclictest33-21ksoftirqd/209:35:162
3912995725,3cyclictest33-21ksoftirqd/209:45:242
391199577,11cyclictest5138-21cut10:35:001
391199577,11cyclictest20964-21grep12:15:251
3913995626,6cyclictest41-21ksoftirqd/310:36:123
3913995626,3cyclictest41-21ksoftirqd/309:35:003
3913995625,3cyclictest41-21ksoftirqd/309:00:143
3913995621,9cyclictest41-21ksoftirqd/307:55:223
3913995620,4cyclictest41-21ksoftirqd/307:15:173
3913995617,10cyclictest41-21ksoftirqd/307:20:153
3912995623,3cyclictest33-21ksoftirqd/210:35:182
391199569,10cyclictest10216-21cpuspeed_turbos08:30:151
391199566,16cyclictest2696-21/usr/sbin/munin08:15:171
3913995525,9cyclictest41-21ksoftirqd/308:30:203
3913995523,9cyclictest41-21ksoftirqd/309:20:213
3913995516,10cyclictest41-21ksoftirqd/308:00:153
3912995522,4cyclictest33-21ksoftirqd/212:25:142
3912995519,5cyclictest33-21ksoftirqd/210:10:262
3912995518,5cyclictest33-21ksoftirqd/211:55:162
3912995516,4cyclictest33-21ksoftirqd/209:20:132
391199558,15cyclictest6864-21mailstats10:35:251
391199557,10cyclictest28614-21awk11:20:261
222462550,1sleep122247-21ls12:20:131
391399545,8cyclictest41-21ksoftirqd/308:50:263
3913995422,10cyclictest41-21ksoftirqd/307:30:003
3912995431,3cyclictest33-21ksoftirqd/210:55:152
3912995427,6cyclictest33-21ksoftirqd/210:05:162
3912995427,4cyclictest33-21ksoftirqd/211:45:162
3912995422,5cyclictest33-21ksoftirqd/211:30:182
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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