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2026-05-20 - 18:00
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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 rackdslot4.osadl.org (updated Wed May 20, 2026 12:45:54)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
138591232164,24phc2sys0-21swapper/307:09:113
120222203169,23sleep10-21swapper/107:08:481
118762202167,23sleep20-21swapper/207:07:002
118742199165,22sleep00-21swapper/007:06:580
800821340,3sleep01240699cyclictest11:20:150
1211528162,10sleep10-21swapper/107:10:011
12408996530,6cyclictest33-21ksoftirqd/207:54:592
12408996331,6cyclictest33-21ksoftirqd/211:35:132
12408996331,6cyclictest33-21ksoftirqd/211:35:132
12408996331,5cyclictest33-21ksoftirqd/207:45:192
12408996330,6cyclictest33-21ksoftirqd/208:30:272
12408996329,5cyclictest33-21ksoftirqd/211:20:242
12408996328,6cyclictest33-21ksoftirqd/208:30:002
12408996327,6cyclictest33-21ksoftirqd/211:40:242
12408996232,5cyclictest33-21ksoftirqd/208:10:002
12408996230,5cyclictest33-21ksoftirqd/210:05:222
12408996228,6cyclictest33-21ksoftirqd/208:45:242
12408996227,5cyclictest33-21ksoftirqd/212:10:002
12408996226,8cyclictest33-21ksoftirqd/207:15:142
12408996129,6cyclictest33-21ksoftirqd/207:10:172
12408996129,5cyclictest33-21ksoftirqd/211:30:212
12408996129,5cyclictest33-21ksoftirqd/209:05:142
12408996128,6cyclictest33-21ksoftirqd/212:15:262
12408996128,6cyclictest33-21ksoftirqd/212:15:252
12408996128,6cyclictest33-21ksoftirqd/211:25:152
12408996127,6cyclictest33-21ksoftirqd/210:30:112
12408996125,10cyclictest33-21ksoftirqd/212:35:002
12408996030,5cyclictest33-21ksoftirqd/211:55:252
12408996030,5cyclictest33-21ksoftirqd/210:20:232
12408996030,5cyclictest33-21ksoftirqd/209:10:162
12408996029,8cyclictest33-21ksoftirqd/208:22:592
12408996029,6cyclictest33-21ksoftirqd/209:25:242
12408996028,6cyclictest33-21ksoftirqd/210:40:122
12408996028,6cyclictest33-21ksoftirqd/208:55:232
12408996028,5cyclictest33-21ksoftirqd/211:10:222
12408996028,5cyclictest33-21ksoftirqd/210:50:012
12408996028,5cyclictest33-21ksoftirqd/208:05:012
12408996028,5cyclictest33-21ksoftirqd/207:20:252
12408996027,7cyclictest33-21ksoftirqd/210:50:202
12408996027,5cyclictest33-21ksoftirqd/207:25:202
12408996026,6cyclictest33-21ksoftirqd/209:30:232
12408996026,6cyclictest33-21ksoftirqd/209:20:162
12408996026,5cyclictest33-21ksoftirqd/207:40:262
138491590,1ptp4l401ktimersoftd/310:49:273
12408995930,7cyclictest33-21ksoftirqd/210:25:242
12408995929,5cyclictest33-21ksoftirqd/210:35:252
12408995929,5cyclictest33-21ksoftirqd/210:35:242
12408995929,5cyclictest33-21ksoftirqd/210:00:242
12408995929,4cyclictest33-21ksoftirqd/211:00:132
12408995927,6cyclictest33-21ksoftirqd/212:20:132
12408995926,6cyclictest33-21ksoftirqd/208:50:252
12408995925,5cyclictest33-21ksoftirqd/208:40:202
12408995924,5cyclictest33-21ksoftirqd/209:40:142
12408995921,4cyclictest33-21ksoftirqd/209:20:012
12408995827,5cyclictest33-21ksoftirqd/211:50:122
12408995825,5cyclictest33-21ksoftirqd/210:15:252
12408995825,5cyclictest33-21ksoftirqd/208:10:132
12408995824,6cyclictest33-21ksoftirqd/211:45:142
12408995822,6cyclictest33-21ksoftirqd/207:55:142
12408995821,3cyclictest33-21ksoftirqd/209:45:112
1240699587,11cyclictest14038-21switchtime07:10:260
12408995728,4cyclictest33-21ksoftirqd/210:55:122
12408995724,5cyclictest33-21ksoftirqd/212:15:002
12408995724,5cyclictest33-21ksoftirqd/207:35:262
12408995723,8cyclictest33-21ksoftirqd/212:25:132
1240699576,11cyclictest30084-21df_abs12:05:130
12408995625,6cyclictest33-21ksoftirqd/212:35:132
12408995625,6cyclictest33-21ksoftirqd/211:05:152
12408995625,6cyclictest33-21ksoftirqd/211:05:142
12408995625,5cyclictest33-21ksoftirqd/210:00:002
12408995625,4cyclictest33-21ksoftirqd/207:35:002
12408995624,6cyclictest33-21ksoftirqd/211:15:122
12408995624,6cyclictest33-21ksoftirqd/208:15:142
80362550,2sleep30-21swapper/312:25:173
138491550,1ptp4l401ktimersoftd/310:40:213
12408995523,5cyclictest33-21ksoftirqd/208:35:162
12408995520,9cyclictest33-21ksoftirqd/209:35:192
1240699558,14cyclictest14263-21cat12:35:250
1240699557,16cyclictest26308-21mailstats10:50:240
12408995422,6cyclictest33-21ksoftirqd/209:50:252
1240699547,11cyclictest8472-21cat12:25:200
1240699546,17cyclictest962-21open_files12:10:210
12408995327,7cyclictest33-21ksoftirqd/209:00:012
1240699538,10cyclictest24051-21timerandwakeup09:40:260
1240699537,11cyclictest29501-21latency_hist07:45:010
1240699536,11cyclictest16647-21timerwakeupswit10:30:250
1240699528,15cyclictest14615-21apt-get09:25:010
1240699519,7cyclictest4046-21python11:10:250
1240699513,15cyclictest21376-21cat11:45:230
321682500,2sleep00-21swapper/010:00:000
12408995021,6cyclictest33-21ksoftirqd/210:10:152
12408994915,3cyclictest33-21ksoftirqd/212:00:202
12407994918,29cyclictest0-21swapper/109:00:431
5012480,2sleep00-21swapper/010:00:150
1240699488,7cyclictest26295-21sensors_temp07:35:230
1240699479,9cyclictest17436-21apt10:35:090
1240699479,9cyclictest17436-21apt10:35:080
1240699478,7cyclictest5227-21df_inode08:00:140
1240699478,7cyclictest11359-21python09:15:230
1240699468,7cyclictest3046-21hddtemp_smartct12:15:160
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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