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2026-07-17 - 15:06
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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 Fri Jul 17, 2026 00:45:52)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
305732206173,22sleep20-21swapper/219:07:382
307092205171,22sleep10-21swapper/119:09:261
139491205170,23phc2sys0-21swapper/319:09:483
307202202169,22sleep00-21swapper/019:09:330
224621360,4sleep13104599cyclictest19:15:231
31045997518,55cyclictest0-21swapper/122:47:131
31046996231,3cyclictest33-21ksoftirqd/220:25:192
31046996227,11cyclictest33-21ksoftirqd/222:15:152
31046996226,5cyclictest33-21ksoftirqd/221:50:252
31046996129,4cyclictest33-21ksoftirqd/222:10:262
31046996126,4cyclictest33-21ksoftirqd/220:45:242
31046996028,4cyclictest33-21ksoftirqd/200:05:002
31046995929,9cyclictest33-21ksoftirqd/221:20:242
31046995924,4cyclictest33-21ksoftirqd/222:35:222
31046995924,4cyclictest33-21ksoftirqd/222:35:212
31046995828,4cyclictest33-21ksoftirqd/221:30:332
3104799574,12cyclictest1195-21sed21:30:003
31046995726,9cyclictest33-21ksoftirqd/219:25:222
31046995722,4cyclictest33-21ksoftirqd/223:00:172
3104799568,11cyclictest20667-21awk23:15:253
31046995621,9cyclictest33-21ksoftirqd/219:20:232
218382560,1sleep30-21swapper/300:25:193
3104699553,8cyclictest33-21ksoftirqd/219:50:002
3104699552,6cyclictest33-21ksoftirqd/223:50:002
31046995522,4cyclictest33-21ksoftirqd/221:40:272
3104699546,9cyclictest14535-21/usr/sbin/munin23:05:142
3104699536,4cyclictest33-21ksoftirqd/223:25:182
3104699535,10cyclictest33-21ksoftirqd/220:55:012
31046995320,10cyclictest33-21ksoftirqd/200:10:222
3104699530,5cyclictest33-21ksoftirqd/219:40:002
3104799526,10cyclictest11700-21sshd22:57:253
3104799525,7cyclictest0-21swapper/319:50:013
3104699526,10cyclictest33-21ksoftirqd/219:40:242
3104699526,10cyclictest33-21ksoftirqd/219:40:242
3104699524,9cyclictest33-21ksoftirqd/221:15:002
31046995227,4cyclictest33-21ksoftirqd/220:32:292
31046995220,8cyclictest33-21ksoftirqd/200:20:252
3104699521,6cyclictest33-21ksoftirqd/220:00:012
3104799516,11cyclictest14742-21awk19:40:253
3104799516,11cyclictest14742-21awk19:40:253
3104699513,7cyclictest33-21ksoftirqd/200:35:012
3104699512,8cyclictest33-21ksoftirqd/223:10:242
31046995121,3cyclictest33-21ksoftirqd/200:15:282
31046995118,11cyclictest33-21ksoftirqd/200:05:312
3104799503,10cyclictest25019-21chrt22:17:383
3104799502,12cyclictest30463-21sed23:35:263
3104799501,11cyclictest22450-21hddtemp_smartct21:05:183
3104699506,6cyclictest33-21ksoftirqd/221:26:042
3104699505,6cyclictest33-21ksoftirqd/219:10:112
3104699503,8cyclictest33-21ksoftirqd/222:30:132
3104699503,5cyclictest33-21ksoftirqd/222:00:162
31046995019,9cyclictest33-21ksoftirqd/220:00:242
3104699501,6cyclictest33-21ksoftirqd/220:25:002
3104699500,7cyclictest33-21ksoftirqd/221:00:172
3104799498,17cyclictest18065-21netstat23:10:243
3104799493,9cyclictest29271-21chrt20:11:023
3104799493,9cyclictest29271-21chrt20:11:013
3104799492,10cyclictest26397-21irqstats22:20:193
3104799491,17cyclictest18639-21irqrtprio19:50:183
3104699496,8cyclictest33-21ksoftirqd/221:05:172
3104699495,9cyclictest33-21ksoftirqd/223:15:262
3104699492,8cyclictest33-21ksoftirqd/220:20:002
3104699492,5cyclictest33-21ksoftirqd/219:50:172
31046994919,8cyclictest33-21ksoftirqd/222:55:172
3104699491,5cyclictest33-21ksoftirqd/200:35:282
31046994915,4cyclictest33-21ksoftirqd/220:40:242
3104799483,11cyclictest6671-21taskset20:31:193
3104799482,15cyclictest5699-21chrt23:52:333
3104799482,15cyclictest5699-21chrt23:52:333
3104799482,15cyclictest26110-21chrt23:26:513
3104799482,12cyclictest21973-21sed19:55:263
3104799482,12cyclictest1642-21df23:45:143
3104799481,16cyclictest28207-21timerandwakeup21:15:273
3104699485,9cyclictest33-21ksoftirqd/223:50:152
3104699485,9cyclictest33-21ksoftirqd/223:50:152
3104699485,9cyclictest33-21ksoftirqd/219:15:202
3104699485,4cyclictest33-21ksoftirqd/200:00:012
3104699482,9cyclictest33-21ksoftirqd/220:05:142
3104699482,8cyclictest33-21ksoftirqd/222:45:192
31046994824,9cyclictest33-21ksoftirqd/223:35:182
3104699480,7cyclictest33-21ksoftirqd/221:50:012
16702480,2sleep00-21swapper/019:15:180
3104799472,9cyclictest27152-21taskset20:09:093
3104799471,10cyclictest14549-21missed_timers00:10:223
3104699476,8cyclictest33-21ksoftirqd/222:25:142
3104699475,9cyclictest33-21ksoftirqd/223:40:272
3104699475,9cyclictest33-21ksoftirqd/222:20:162
3104699475,10cyclictest33-21ksoftirqd/220:55:152
3104699473,8cyclictest33-21ksoftirqd/200:25:272
3104799464,5cyclictest0-21swapper/321:35:173
3104799461,17cyclictest16017-21apt-key00:15:003
3104699465,7cyclictest0-21swapper/221:15:272
3104699464,8cyclictest33-21ksoftirqd/222:50:292
3104699464,10cyclictest33-21ksoftirqd/221:40:012
3104699460,6cyclictest33-21ksoftirqd/220:35:162
3104799458,15cyclictest7747-21sed22:50:153
3104799456,11cyclictest15094-21awk21:55:263
3104799455,5cyclictest0-21swapper/300:05:273
3104799451,17cyclictest27287-21cat00:35:263
3104699456,9cyclictest33-21ksoftirqd/222:40:272
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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