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2026-03-30 - 22:50
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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 Mon Mar 30, 2026 12:43:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1636062992926,1cyclictest0-21swapper/307:10:303
1636062992724,1cyclictest0-21swapper/312:00:233
18674682250,1sleep20-21swapper/209:55:212
1636062992310,10cyclictest1708856-21turbostat08:05:013
1636062992220,1cyclictest0-21swapper/309:20:003
1636062992219,1cyclictest0-21swapper/308:20:003
18218962210,10sleep11821901-21sh09:25:341
17669802211,9sleep11767081-21cpuspeed_turbos08:50:131
163606299202,14cyclictest1907947-21taskset10:23:113
163606299202,13cyclictest1819034-21taskset09:25:183
1636062992017,1cyclictest0-21swapper/310:14:593
1636062992017,1cyclictest0-21swapper/307:25:173
1636062992011,7cyclictest1832985-21chrt09:35:163
163606299201,16cyclictest1955122-21sleep10:55:013
163606299201,15cyclictest1746456-21chrt08:30:233
163606299201,15cyclictest1689808-21chrt07:50:143
163606299201,14cyclictest1702409-21sleep08:00:003
163606299197,9cyclictest1657383-21turbostat07:25:003
163606299191,9cyclictest2092597-21taskset12:20:263
1636062991917,1cyclictest0-21swapper/310:40:003
1636062991916,1cyclictest0-21swapper/311:40:003
1636062991916,1cyclictest0-21swapper/311:25:133
1636062991915,1cyclictest0-21swapper/309:55:213
163606299191,13cyclictest2102261-21chrt12:30:123
163606299191,13cyclictest1670212-21turbostat07:35:003
163606299190,16cyclictest2046644-21taskset11:51:313
163606299187,6cyclictest17601922sleep308:44:273
1636062991815,1cyclictest0-21swapper/310:50:003
1636062991815,1cyclictest0-21swapper/309:55:003
1636062991815,1cyclictest0-21swapper/309:20:023
163606299181,14cyclictest2017217-21taskset11:35:133
163606299181,14cyclictest1676680-21sleep07:40:013
163606299181,13cyclictest1986478-21taskset11:15:153
163606299181,13cyclictest1976089-21chrt11:05:213
163606299181,13cyclictest1915602-21chrt10:28:013
163606299181,13cyclictest1899993-21taskset10:17:353
163606299181,13cyclictest1799206-21taskset09:12:163
163606299181,13cyclictest1762077-21taskset08:45:183
163606299181,13cyclictest1740748-21taskset08:27:533
163606299177,3cyclictest17342642sleep308:22:143
163606299175,7cyclictest17213202sleep308:10:473
163606299173,8cyclictest20702442sleep312:07:573
163606299172,11cyclictest1785705-21taskset09:01:383
163606299172,11cyclictest1785705-21taskset09:01:373
1636062991714,1cyclictest0-21swapper/310:00:443
163606299171,3cyclictest0-21swapper/311:00:003
163606299171,3cyclictest0-21swapper/310:40:133
163606299171,3cyclictest0-21swapper/310:30:123
163606299171,3cyclictest0-21swapper/308:50:133
163606299171,13cyclictest2084972-21taskset12:15:423
163606299171,13cyclictest2040028-21taskset11:49:523
163606299171,13cyclictest1845514-21taskset09:41:303
163606299171,13cyclictest1649981-21taskset07:15:223
163606299171,12cyclictest2048113-21taskset11:55:133
163606299171,12cyclictest1978247-21sleep11:14:563
163606299171,12cyclictest1963143-21taskset11:00:133
163606299171,12cyclictest1823718-21chrt09:30:123
163606299171,12cyclictest1752990-21chrt08:35:233
163606299171,12cyclictest1709126-21chrt08:05:123
163606299171,12cyclictest1682792-21taskset07:41:393
16642362161,11sleep01664389-21/usr/sbin/munin07:30:150
1636062991614,1cyclictest0-21swapper/309:45:173
163606299161,3cyclictest0-21swapper/312:35:123
163606299161,3cyclictest0-21swapper/311:30:113
163606299161,3cyclictest0-21swapper/308:55:143
1636062991613,1cyclictest0-21swapper/307:45:183
163606299161,2cyclictest0-21swapper/312:25:143
163606299161,2cyclictest0-21swapper/312:10:123
163606299160,12cyclictest1791509-21chrt09:05:213
129998160,1rtkit-daemon0-21swapper/010:31:340
20548062151,10sleep12054810-21ssh11:57:531
163606299155,7cyclictest0-21swapper/310:05:223
163606299151,2cyclictest0-21swapper/311:20:123
20153172141,6sleep22015323-21ssh11:30:272
19142502140,10sleep21914268-21ntp_states10:25:242
16891462140,7sleep172-21kcompactd007:45:511
129998140,5rtkit-daemon2117362-21912:40:000
129998140,2rtkit-daemon171rcu_preempt08:00:001
18368432130,10sleep01836891-21ntpq09:35:230
17092822137,3sleep01709371-21fschecks_time08:05:150
163606299131,2cyclictest0-21swapper/307:10:013
20085792121,8sleep02008585-21ssh11:28:250
19257462120,9sleep21927242-21cut10:35:182
18770672121,5sleep1222-21plymouthd10:03:181
17535112120,5sleep0222-21plymouthd08:36:060
16499232120,3sleep20-21swapper/207:15:222
129998120,8rtkit-daemon703-21mta-sts-daemon10:01:370
129998120,4rtkit-daemon2085530-21ssh12:17:202
21095302110,5sleep12109536-21ssh12:34:531
20930012110,2sleep1222-21plymouthd12:21:301
20599042110,1sleep00-21swapper/012:00:190
18951922111,6sleep01896829-21cut10:15:190
18934252110,7sleep21893427-21apt-get10:15:142
17079722111,7sleep21702661-21/usr/sbin/munin08:00:242
17016152111,7sleep21701710-21switchtime07:55:262
129998110,7rtkit-daemon2094796-21ssh12:25:150
129998110,7rtkit-daemon1642607-21munin-node10:05:130
129998110,6rtkit-daemon1947812-21cpuspeed_turbos10:50:140
129998110,6rtkit-daemon1740059-21ntpq08:25:221
129998110,6rtkit-daemon1707868-21ntpq08:00:211
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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