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2026-08-03 - 00:49
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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 Sun Aug 02, 2026 12:43:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
122564724020,2sleep11200831-21kworker/u16:2+xprtiod10:15:011
104718021180,4sleep00-21swapper/008:10:110
967819993027,1cyclictest0-21swapper/312:20:013
967819993027,1cyclictest0-21swapper/308:29:593
967819992925,1cyclictest0-21swapper/308:20:003
967819992825,1cyclictest0-21swapper/311:20:153
9683062270,1sleep30-21swapper/307:10:163
967819992724,1cyclictest0-21swapper/312:25:203
967819992623,1cyclictest0-21swapper/310:25:173
967819992522,1cyclictest0-21swapper/311:15:133
967819992522,1cyclictest0-21swapper/309:30:013
11098902250,1sleep10-21swapper/108:55:231
967819992421,1cyclictest0-21swapper/311:40:303
967819992421,1cyclictest0-21swapper/308:00:293
967819992321,1cyclictest0-21swapper/312:40:003
967819992320,1cyclictest0-21swapper/310:40:323
96781999231,18cyclictest1405951-21turbostat12:10:003
96781999231,16cyclictest1233510-21taskset10:20:003
967819992219,1cyclictest0-21swapper/310:20:173
967819992219,1cyclictest0-21swapper/309:55:183
967819992219,1cyclictest0-21swapper/307:20:183
967819992212,6cyclictest1027708-21turbostat07:55:003
96781999221,15cyclictest1264962-21taskset10:40:003
967819992118,1cyclictest0-21swapper/311:50:013
967819992118,1cyclictest0-21swapper/309:40:203
96781999211,15cyclictest1216993-21taskset10:07:373
13406352210,1sleep30-21swapper/311:25:183
96781999202,14cyclictest1202463-21taskset10:00:113
967819992017,1cyclictest0-21swapper/312:00:193
967819992017,1cyclictest0-21swapper/308:50:373
967819992017,1cyclictest0-21swapper/308:20:213
967819992017,1cyclictest0-21swapper/308:10:013
967819991917,1cyclictest0-21swapper/312:20:203
967819991916,1cyclictest0-21swapper/311:55:183
967819991916,1cyclictest0-21swapper/309:10:193
967819991916,1cyclictest0-21swapper/309:05:193
967819991916,1cyclictest0-21swapper/309:00:283
967819991916,1cyclictest0-21swapper/308:40:003
967819991916,1cyclictest0-21swapper/307:40:153
967819991916,1cyclictest0-21swapper/307:30:173
96781999191,14cyclictest1380243-21taskset11:50:243
96781999191,13cyclictest995735-21taskset07:30:013
967819991816,1cyclictest0-21swapper/311:00:363
967819991816,1cyclictest0-21swapper/311:00:003
967819991815,1cyclictest0-21swapper/309:30:283
967819991815,1cyclictest0-21swapper/309:20:043
967819991815,1cyclictest0-21swapper/307:55:313
96781999181,13cyclictest1444784-21taskset12:34:123
96781999181,13cyclictest1406305-21taskset12:10:133
96781999181,13cyclictest1256892-21taskset10:34:563
96781999181,13cyclictest1185592-21taskset09:47:213
96781999181,13cyclictest1098140-21taskset08:49:063
96781999181,13cyclictest1085581-21taskset08:40:013
96781999181,13cyclictest1008141-21chrt07:36:223
96781999181,12cyclictest1316277-21taskset11:10:203
96781999172,12cyclictest1287372-21taskset10:52:163
967819991714,1cyclictest0-21swapper/310:10:163
96781999171,13cyclictest982410-21taskset07:16:023
96781999171,13cyclictest1357372-21taskset11:35:423
96781999171,13cyclictest1278999-21taskset10:45:413
96781999171,13cyclictest1193007-21taskset09:51:083
96781999171,13cyclictest1163292-21taskset09:35:023
96781999171,13cyclictest1077986-21taskset08:30:233
96781999171,12cyclictest1343634-21chrt11:30:133
96781999171,12cyclictest1135679-21taskset09:15:173
96781999171,12cyclictest1047157-21taskset08:10:103
11555922170,7sleep01155737-21df09:30:140
967819991613,1cyclictest0-21swapper/307:45:213
96781999161,12cyclictest1307191-21taskset11:05:183
96781999161,12cyclictest1107458-21taskset08:55:203
13723922161,5sleep11372432-21ntpq11:45:231
13725542151,11sleep01372638-21/usr/sbin/munin11:45:260
9675302140,2sleep30-21swapper/307:08:413
13987272140,11sleep11398430-21/usr/sbin/munin12:05:161
117256621410,2sleep20-21swapper/209:40:182
12886452130,4sleep01288651-21ssh10:55:100
12637782131,8sleep11263782-21ssh10:37:141
12352402130,9sleep21236203-21cut10:20:202
11330692131,9sleep11134022-21kthreadcore09:15:161
13828212120,4sleep11382825-21ssh11:55:141
12045502120,2sleep01205731-21ssh10:00:220
11177432121,7sleep11117776-21apt-get09:05:141
10860382120,9sleep21086583-21cut08:40:172
10395872121,7sleep01034126-21sendmail-msp08:00:260
10010182121,8sleep21001060-21ntpq07:30:202
14527602110,8sleep11452766-21ssh12:39:391
14066892111,7sleep21406768-21ssh12:10:182
13666952110,8sleep21366697-21ssh11:44:472
12802612110,3sleep11280267-21ssh10:49:131
12800142110,8sleep0222-21plymouthd10:48:370
12256272111,7sleep01225632-21cron10:15:010
12009562110,5sleep2222-21plymouthd09:56:472
11790232111,3sleep01179027-21ssh09:45:060
10922512110,8sleep11092335-21cut08:45:131
10808772115,2sleep20-21swapper/208:35:192
9858132100,7sleep1986091-21kthreadcore07:20:221
9631992101,6sleep0964921-21kthreadcore07:05:210
9615912101,4sleep2961613-21apt-get07:05:152
13435852101,5sleep11343622-21apt-get11:30:111
13274532100,7sleep21327459-21ssh11:19:542
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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