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2026-05-24 - 15:39
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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 May 24, 2026 12:43:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
14941182300,2sleep20-21swapper/210:05:172
1249829992825,1cyclictest0-21swapper/311:40:023
1249829992825,1cyclictest0-21swapper/311:00:003
1249829992724,1cyclictest0-21swapper/312:40:013
1249829992724,1cyclictest0-21swapper/311:32:233
1249829992724,1cyclictest0-21swapper/309:45:263
1249829992623,1cyclictest0-21swapper/310:40:003
1249829992623,1cyclictest0-21swapper/307:55:013
124982999261,21cyclictest1436934-21turbostat09:30:003
1249829992513,9cyclictest1484022-21turbostat10:00:013
124982999231,9cyclictest1515315-21sleep10:20:003
124982999222,15cyclictest1578427-21taskset11:00:153
124982999222,15cyclictest1451589-21taskset09:37:273
1249829992219,1cyclictest0-21swapper/309:10:003
1249829992118,1cyclictest0-21swapper/312:05:273
1249829992118,1cyclictest0-21swapper/310:10:143
124982999211,15cyclictest1529324-21taskset10:25:273
1249829992017,1cyclictest0-21swapper/312:05:003
1249829992017,1cyclictest0-21swapper/309:15:173
1249829992016,1cyclictest0-21swapper/309:00:273
124982999201,15cyclictest1615157-21taskset11:20:243
124982999201,15cyclictest1569226-21taskset10:52:173
124982999201,14cyclictest1412148-21taskset09:11:373
124982999201,14cyclictest1386699-21chrt08:55:143
124982999201,14cyclictest1386699-21chrt08:55:143
124982999201,14cyclictest1367220-21turbostat08:40:003
124982999201,14cyclictest1296441-21taskset07:40:293
124982999201,13cyclictest1264744-21taskset07:19:563
124982999199,7cyclictest13477842sleep308:22:113
1249829991916,1cyclictest0-21swapper/312:30:233
1249829991916,1cyclictest0-21swapper/309:20:133
1249829991916,1cyclictest0-21swapper/308:50:003
124982999191,14cyclictest1537386-21taskset10:31:043
124982999191,14cyclictest1359867-21taskset08:30:203
124982999191,14cyclictest1315723-21taskset07:56:043
16401972181,9sleep21640203-21ssh11:38:402
1249829991816,1cyclictest0-21swapper/308:00:033
1249829991815,1cyclictest0-21swapper/311:15:243
1249829991814,1cyclictest0-21swapper/310:40:253
124982999181,13cyclictest1717659-21taskset12:25:553
124982999181,13cyclictest1703275-21taskset12:19:453
124982999181,13cyclictest1688116-21taskset12:10:113
124982999181,13cyclictest1560207-21chrt10:45:233
124982999181,13cyclictest1474778-21taskset09:51:193
124982999181,13cyclictest1300993-21taskset07:45:183
124982999181,13cyclictest1290280-21taskset07:38:403
124982999181,13cyclictest1273219-21taskset07:25:173
124982999181,13cyclictest1254504-21taskset07:10:223
124982999181,13cyclictest1254504-21taskset07:10:223
124982999179,4cyclictest16489872chrt11:45:133
124982999177,7cyclictest16706312sleep311:55:543
124982999172,12cyclictest1459221-21taskset09:41:483
1249829991714,1cyclictest0-21swapper/310:00:063
1249829991713,1cyclictest0-21swapper/311:10:183
124982999171,13cyclictest1657028-21taskset11:50:143
124982999171,13cyclictest1522765-21taskset10:23:543
124982999171,13cyclictest1326051-21taskset08:05:183
124982999171,13cyclictest1283728-21taskset07:31:433
124982999171,13cyclictest1265062-21taskset07:20:043
124982999171,12cyclictest1633659-21taskset11:35:153
124982999171,12cyclictest1617635-21chrt11:25:133
124982999171,12cyclictest1492397-21taskset10:05:143
124982999171,12cyclictest1443133-21taskset09:30:423
124982999171,12cyclictest1354165-21taskset08:26:553
124982999171,12cyclictest1341282-21taskset08:15:413
124982999170,14cyclictest1709049-21taskset12:20:223
124982999170,13cyclictest1381533-21taskset08:50:173
12703592161,11sleep11270389-21ntpq07:20:231
124982999161,12cyclictest1334882-21taskset08:10:483
124982999160,12cyclictest1367469-21taskset08:40:103
12436492161,8sleep2222-21plymouthd07:05:132
16298852151,11sleep01630492-21/usr/sbin/munin11:30:200
1249829991513,1cyclictest0-21swapper/311:05:193
17278672141,10sleep11728729-21tr12:35:161
164036821411,1sleep01578349-21kworker/0:0+kacpid11:39:060
16118332140,1sleep10-21swapper/111:20:171
15428222141,9sleep11544180-21latency10:35:201
14768962141,10sleep01477452-21ps09:55:180
16238742134,3sleep0151ktimers/011:26:430
16108882130,10sleep01611832-21cut11:20:170
14059222131,8sleep11405924-21apt-get09:10:121
13791372131,9sleep21379164-21ntpq08:45:232
17211012120,9sleep01722703-21cut12:30:180
17104502121,8sleep21710454-21ssh12:22:502
16792742120,9sleep21679280-21ssh12:03:062
16491482121,9sleep01649276-21gltestperf11:45:150
16485842121,8sleep21648590-21ssh11:44:572
15553642120,9sleep01556277-21cut10:45:170
15542722121,8sleep21554278-21ssh10:44:232
16323752110,8sleep11632380-21sh11:33:421
14839782111,2sleep2222-21plymouthd10:00:012
14603372110,8sleep11460347-21ssh09:44:561
14505452116,3sleep21450802-21unixbench_multi09:35:272
14221372111,7sleep01423008-21/usr/sbin/munin09:20:170
13866962111,5sleep2222-21plymouthd08:55:142
13866962111,5sleep2222-21plymouthd08:55:142
12967932117,1sleep10-21swapper/107:45:011
12966082110,3sleep0222-21plymouthd07:42:390
16950672100,2sleep0222-21plymouthd12:13:380
16460842100,7sleep11646243-21head11:40:191
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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