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2026-08-20 - 22:19
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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
Compare latency of primary with shadow system
Characteristics of the 100 highest latencies:
System rackeslot8.osadl.org (updated Thu Aug 20, 2026 12:43:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
9602602590,1sleep00-21swapper/007:30:170
11664332420,1sleep20-21swapper/210:00:012
930343993734,1cyclictest0-21swapper/311:05:003
930343993734,1cyclictest0-21swapper/311:05:003
930343992927,1cyclictest0-21swapper/307:30:003
930343992926,1cyclictest0-21swapper/309:50:003
930343992825,1cyclictest0-21swapper/308:35:013
930343992724,1cyclictest0-21swapper/309:20:253
930343992716,0cyclictest0-21swapper/311:55:143
930343992713,1cyclictest0-21swapper/311:15:123
12491632270,9sleep014-21ksoftirqd/010:50:190
930343992623,1cyclictest0-21swapper/312:10:003
930343992522,1cyclictest0-21swapper/309:50:203
930343992522,1cyclictest0-21swapper/308:00:243
930343992421,1cyclictest0-21swapper/310:35:003
930343992421,1cyclictest0-21swapper/307:20:013
930343992413,0cyclictest0-21swapper/312:10:183
930343992320,1cyclictest0-21swapper/312:20:153
930343992320,1cyclictest0-21swapper/311:40:013
930343992320,1cyclictest0-21swapper/308:40:013
930343992219,1cyclictest0-21swapper/311:20:163
93034399216,11cyclictest10151262sleep308:10:263
930343992119,1cyclictest0-21swapper/307:30:173
930343992118,1cyclictest0-21swapper/312:00:123
930343992118,1cyclictest0-21swapper/311:40:023
930343992118,1cyclictest0-21swapper/310:20:213
930343992118,1cyclictest0-21swapper/308:40:523
930343992017,1cyclictest0-21swapper/309:40:103
930343992017,1cyclictest0-21swapper/309:00:223
930343992017,1cyclictest0-21swapper/307:40:033
930343992016,1cyclictest0-21swapper/308:51:393
93034399201,14cyclictest1117815-21taskset09:26:583
93034399200,18cyclictest1095329-21turbostat09:19:553
930343991916,1cyclictest0-21swapper/310:35:213
930343991915,1cyclictest0-21swapper/311:25:163
93034399191,14cyclictest996371-21taskset07:56:463
93034399191,14cyclictest1405821-21taskset12:30:173
93034399191,14cyclictest1347558-21turbostat11:55:003
93034399191,14cyclictest1308492-21taskset11:30:113
93034399191,14cyclictest1276593-21taskset11:09:583
93034399191,14cyclictest1252749-21taskset10:54:313
93034399191,14cyclictest1229634-21taskset10:40:113
93034399191,13cyclictest1189849-21sleep10:19:553
93034399191,13cyclictest1074659-21taskset09:00:003
930343991815,1cyclictest0-21swapper/310:00:203
930343991815,1cyclictest0-21swapper/309:05:153
930343991815,1cyclictest0-21swapper/308:20:283
930343991815,1cyclictest0-21swapper/307:40:003
93034399181,13cyclictest984114-21taskset07:50:043
93034399181,13cyclictest1417236-21taskset12:36:063
93034399181,13cyclictest1417236-21taskset12:36:063
93034399181,13cyclictest1332142-21taskset11:45:113
93034399181,13cyclictest1260246-21taskset10:58:323
93034399181,13cyclictest1243774-21taskset10:46:333
93034399181,13cyclictest1212664-21taskset10:27:363
93034399181,13cyclictest1188564-21taskset10:11:333
93034399181,13cyclictest1091790-21taskset09:10:183
93034399181,12cyclictest1174391-21taskset10:05:073
11114152182,12sleep11111508-21cpuspeed_turbos09:25:131
93034399171,13cyclictest1386643-21taskset12:18:383
93034399171,13cyclictest1133934-21taskset09:38:133
93034399171,13cyclictest1061628-21taskset08:46:573
93034399171,12cyclictest978099-21taskset07:45:153
93034399171,12cyclictest1276900-21taskset11:10:063
93034399171,12cyclictest1158684-21chrt09:55:133
93034399171,12cyclictest1035807-21taskset08:27:013
93034399171,12cyclictest1016451-21taskset08:15:143
93034399171,12cyclictest1009261-21taskset08:06:203
131686121712,3sleep21317449-21irqrtprio11:35:162
93034399161,12cyclictest945037-21taskset07:17:423
93034399161,12cyclictest1395410-21taskset12:25:083
93034399161,12cyclictest1125699-21taskset09:32:083
13452212161,12sleep01345257-21ntpq11:50:220
9770512152,10sleep1970984-21sendmail-msp07:40:291
93034399150,11cyclictest930518-21taskset07:10:073
13059312140,6sleep01305972-21ntpq11:25:240
12467432140,10sleep21247619-21cut10:50:182
11065802141,9sleep21107976-21kthreadcore09:20:212
9443162130,10sleep2944362-21ld07:15:242
12376892130,10sleep01237728-21grep10:45:150
12191252131,4sleep01219169-21ntpq10:30:230
11862092130,10sleep11187338-21memory10:10:191
10022752131,8sleep1996681-21sendmail-msp08:00:261
9707882122,3sleep2222-21plymouthd07:38:182
6881120,3low-memory-moni1034883-21dpkg08:25:442
13929802120,8sleep21393106-21sensors_temp12:20:272
13633962121,3sleep01363683-21tar12:05:010
12926832127,3sleep1874-21rs:main1
12288832121,8sleep11228888-21sh10:39:021
12168672120,9sleep11218757-21cut10:30:201
10807542120,7sleep272-21kcompactd009:00:522
9407072110,8sleep1942420-21grep07:15:191
9292552111,5sleep0929291-21ntpq07:05:200
14186302110,1sleep00-21swapper/012:39:580
14186302110,1sleep00-21swapper/012:39:570
14007282111,3sleep11400774-21ntpq12:25:231
13242632111,7sleep11324265-21apt-get11:40:121
12671942110,1sleep00-21swapper/011:00:420
12671942110,1sleep00-21swapper/011:00:420
11818612110,8sleep11181867-21ssh10:09:551
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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