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2026-06-12 - 09:24
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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 Fri Jun 12, 2026 00:43:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
16265762270,2sleep2222-21plymouthd20:10:192
1542081992522,1cyclictest0-21swapper/321:59:593
1542081992421,1cyclictest0-21swapper/300:30:013
1542081992320,1cyclictest0-21swapper/323:00:173
154208199230,9cyclictest1862129-21sleep22:55:003
1542081992219,1cyclictest0-21swapper/322:10:003
154208199221,14cyclictest1634386-21sleep20:24:563
154208199221,14cyclictest1634386-21sleep20:24:563
154208199212,14cyclictest2025237-21taskset00:39:423
1542081992118,1cyclictest0-21swapper/322:42:353
1542081992118,1cyclictest0-21swapper/319:35:153
154208199211,15cyclictest1768779-21turbostat21:55:003
154208199202,14cyclictest1548173-21taskset19:11:263
1542081992017,1cyclictest0-21swapper/323:39:593
1542081992017,1cyclictest0-21swapper/322:05:013
154208199201,15cyclictest1575984-21taskset19:30:263
154208199201,13cyclictest1908764-21taskset23:25:003
154208199201,13cyclictest1673070-21turbostat20:50:013
154208199201,13cyclictest1602438-21chrt19:55:123
154208199200,18cyclictest1608592-21turbostat20:04:543
154208199200,17cyclictest1807765-21turbostat22:24:563
154208199197,8cyclictest17224532sleep321:25:133
154208199192,13cyclictest1715128-21taskset21:20:153
1542081991916,1cyclictest0-21swapper/323:15:173
1542081991915,1cyclictest0-21swapper/300:20:123
154208199191,14cyclictest1923894-21taskset23:34:023
154208199191,14cyclictest1822784-21taskset22:28:393
154208199191,14cyclictest1805086-21taskset22:15:203
154208199191,14cyclictest1699138-21chrt21:10:133
154208199191,13cyclictest1862438-21chrt22:55:133
154208199189,6cyclictest17526602sleep321:43:263
154208199188,7cyclictest19553072sleep323:55:003
1542081991816,0cyclictest0-21swapper/320:15:273
1542081991815,1cyclictest0-21swapper/300:10:233
154208199181,14cyclictest1971304-21taskset00:05:133
154208199181,14cyclictest0-21swapper/321:39:543
154208199181,13cyclictest1935481-21taskset23:40:203
154208199181,13cyclictest1915868-21taskset23:28:123
154208199181,13cyclictest1884090-21taskset23:06:123
154208199181,13cyclictest1836766-21taskset22:35:253
154208199181,13cyclictest1826447-21taskset22:30:193
154208199181,13cyclictest1713051-21taskset21:16:103
154208199181,13cyclictest1698798-21turbostat21:10:013
154208199181,13cyclictest1621478-21taskset20:09:563
154208199181,13cyclictest1569640-21taskset19:26:063
154208199180,14cyclictest1666212-21taskset20:40:253
154208199177,7cyclictest16471362sleep320:28:493
1542081991714,1cyclictest0-21swapper/323:45:203
1542081991714,1cyclictest0-21swapper/323:10:133
1542081991714,1cyclictest0-21swapper/322:45:203
1542081991714,1cyclictest0-21swapper/321:00:083
1542081991714,1cyclictest0-21swapper/320:30:223
154208199171,13cyclictest1759733-21taskset21:46:243
154208199171,13cyclictest1737546-21taskset21:34:473
154208199171,13cyclictest1595949-21taskset19:50:023
154208199171,13cyclictest1550568-21taskset19:15:023
154208199171,12cyclictest1955638-21taskset23:55:103
154208199171,12cyclictest1685570-21taskset20:56:143
154208199171,12cyclictest1674718-21taskset20:50:163
18133202161,11sleep01813361-21ntpq22:20:220
15754212161,8sleep11570213-21/usr/sbin/munin19:30:211
1542081991613,1cyclictest0-21swapper/322:10:183
1542081991613,1cyclictest0-21swapper/300:00:163
154208199161,12cyclictest1986723-21taskset00:15:033
154208199161,12cyclictest1659808-21taskset20:35:373
154208199161,12cyclictest1595390-21taskset19:46:063
154208199161,12cyclictest1589015-21taskset19:41:483
154208199161,12cyclictest1563221-21taskset19:21:173
154208199160,13cyclictest2010607-21taskset00:30:153
154208199160,13cyclictest1627914-21taskset20:14:443
19259542155,7sleep11926987-21cut23:35:171
18388642140,11sleep21839082-21ssh22:40:012
16360402140,11sleep21637629-21cut20:20:182
16360402140,11sleep21637629-21cut20:20:172
20080182134,2sleep2171rcu_preempt00:25:262
19226972130,9sleep11922701-21ssh23:30:331
18925752138,3sleep2431ktimers/223:13:142
18067082131,3sleep20-21swapper/222:17:052
17932462131,9sleep01794038-21cut22:10:160
16929582130,9sleep01693113-21cut21:05:130
16476882130,9sleep11647501-21/usr/sbin/munin20:30:141
15561762130,5sleep21556223-21ntp_states19:15:232
15419212130,2sleep30-21swapper/319:09:383
19928212121,8sleep01992825-21ssh00:15:540
19240672120,9sleep01924073-21ssh23:34:330
18747382120,4sleep01875266-21memory23:00:210
18317832120,3sleep2222-21plymouthd22:35:172
18310442121,8sleep21831082-21idleruntime-cro22:35:002
17716812121,8sleep11773365-21cut21:55:191
16604332125,5sleep21660209-21sendmail-msp20:40:092
16601482121,3sleep1222-21plymouthd20:40:011
15766862121,8sleep01576771-21cpuspeed_turbos19:35:140
20179192110,4sleep22017926-21ssh00:35:132
19687882111,3sleep11968837-21ssh00:00:241
19392512111,7sleep01939257-21ssh23:43:310
18080802111,6sleep1222-21plymouthd22:20:111
18077242110,3sleep0222-21plymouthd22:19:590
17589022110,3sleep0222-21plymouthd21:45:230
17375152110,8sleep11737521-21ssh21:34:421
16914172111,3sleep21691459-21ntpq21:00:232
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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