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2026-08-04 - 19:30
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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 Tue Aug 04, 2026 12:43:58)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
15258392490,3sleep1321rcuc/107:10:191
1523339992724,1cyclictest0-21swapper/309:20:273
1523339992623,1cyclictest0-21swapper/312:00:203
1523339992421,1cyclictest0-21swapper/308:05:013
1523339992320,1cyclictest0-21swapper/311:20:103
1523339992320,1cyclictest0-21swapper/310:20:003
1523339992220,0cyclictest0-21swapper/311:45:173
1523339992219,1cyclictest0-21swapper/310:45:163
152333999212,14cyclictest1851646-21taskset10:58:133
1523339992118,1cyclictest0-21swapper/312:25:153
1523339992118,1cyclictest0-21swapper/312:05:173
1523339992118,1cyclictest0-21swapper/311:40:143
1523339992118,1cyclictest0-21swapper/310:00:273
1523339992118,1cyclictest0-21swapper/309:40:273
1523339992118,1cyclictest0-21swapper/309:40:003
1523339992118,1cyclictest0-21swapper/309:40:003
1523339992118,1cyclictest0-21swapper/307:15:023
1523339992117,1cyclictest0-21swapper/311:00:213
152333999211,15cyclictest1994274-21chrt12:30:143
19826912201,15sleep01983663-21/usr/sbin/munin12:20:210
152333999202,13cyclictest1931427-21chrt11:50:133
1523339992017,1cyclictest0-21swapper/312:20:173
1523339992017,1cyclictest0-21swapper/311:30:413
1523339992017,1cyclictest0-21swapper/311:13:013
1523339992017,1cyclictest0-21swapper/310:43:293
1523339992017,1cyclictest0-21swapper/310:30:003
1523339992017,1cyclictest0-21swapper/309:00:163
1523339992017,1cyclictest0-21swapper/308:15:223
1523339992017,1cyclictest0-21swapper/307:20:183
152333999201,15cyclictest1819829-21taskset10:37:193
15622702190,1sleep10-21swapper/107:35:191
1523339991916,1cyclictest0-21swapper/310:50:113
1523339991916,1cyclictest0-21swapper/310:20:163
1523339991916,1cyclictest0-21swapper/307:40:213
152333999191,14cyclictest1978195-21turbostat12:20:003
152333999191,14cyclictest1741918-21taskset09:49:003
152333999191,14cyclictest1741918-21taskset09:49:003
152333999191,14cyclictest1654328-21taskset08:50:143
152333999191,14cyclictest1626848-21taskset08:25:213
152333999191,13cyclictest1653890-21turbostat08:50:003
18841602181,5sleep21883885-21sendmail-msp11:20:092
152333999189,6cyclictest16087902sleep308:13:403
1523339991816,1cyclictest0-21swapper/308:20:183
1523339991815,1cyclictest0-21swapper/312:35:193
1523339991815,1cyclictest0-21swapper/310:30:073
1523339991815,1cyclictest0-21swapper/309:50:213
1523339991815,1cyclictest0-21swapper/309:14:593
152333999181,14cyclictest1647241-21taskset08:41:563
152333999181,13cyclictest1913018-21taskset11:35:253
152333999181,13cyclictest1860657-21chrt11:05:153
152333999181,13cyclictest1780530-21taskset10:11:543
152333999181,13cyclictest1750539-21chrt09:55:133
152333999181,13cyclictest1640767-21taskset08:37:473
152333999181,13cyclictest1570863-21taskset07:45:163
152333999181,13cyclictest1551874-21taskset07:30:163
152333999181,13cyclictest1529720-21turbostat07:15:013
19310292170,4sleep21931103-21test11:50:002
152333999177,7cyclictest15973212sleep308:05:173
1523339991715,1cyclictest0-21swapper/307:50:183
152333999171,13cyclictest1945777-21taskset11:57:103
152333999171,13cyclictest1898513-21taskset11:27:033
152333999171,13cyclictest1898513-21taskset11:27:033
152333999171,13cyclictest1883197-21taskset11:18:183
152333999171,13cyclictest1883197-21taskset11:18:173
152333999171,13cyclictest1717312-21taskset09:31:043
152333999171,13cyclictest1694246-21taskset09:17:373
152333999171,13cyclictest1666450-21taskset08:57:173
152333999171,13cyclictest1550888-21taskset07:26:433
152333999171,12cyclictest1633831-21taskset08:30:263
152333999171,12cyclictest1583469-21taskset07:55:063
152333999171,12cyclictest1563574-21taskset07:35:413
152333999170,4cyclictest1962575-21turbostat12:14:563
1523339991615,1cyclictest0-21swapper/310:05:213
152333999161,12cyclictest1703301-21taskset09:25:063
152333999161,12cyclictest1678391-21taskset09:05:233
19290752151,10sleep11929336-21/usr/sbin/munin11:45:261
17886942151,10sleep01788696-21ssh10:17:420
17810582157,5sleep2979-21lldpd10:13:222
19366872141,9sleep21936736-21ntp_states11:50:252
19091472140,10sleep11909903-21cut11:35:201
18522582141,9sleep11852293-21latency_hist10:59:591
17637822140,2sleep00-21swapper/010:00:290
16027592141,8sleep21602792-21apt-get08:10:132
19924412132,3sleep0222-21plymouthd12:25:550
16951092130,3sleep11695255-21latency_hist09:20:001
19942272120,9sleep11994268-21ssh12:30:121
19305412121,7sleep01930547-21ssh11:48:380
18686662120,9sleep01868760-21/usr/sbin/munin11:10:140
16859182121,8sleep21685922-21ssh09:11:112
15235352120,3sleep21523568-21apt-get07:10:122
19938602110,8sleep21993864-21ssh12:29:492
18984272110,8sleep21898433-21ssh11:26:512
18984272110,8sleep21898433-21ssh11:26:512
18605942110,5sleep21718255-21kworker/u16:3+rpciod11:05:112
17958572111,3sleep21789611-21sendmail-msp10:20:392
17586702111,7sleep21758383-21/usr/sbin/munin10:00:192
17565792110,8sleep21756584-21ssh09:56:052
17494582110,8sleep11749465-21ssh09:53:081
17268722110,8sleep11726608-21sendmail-msp09:40:091
17007572110,2sleep01700795-21ssh09:20:240
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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