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2025-12-28 - 23:14
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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 Dec 28, 2025 12:43:55)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1595275992721,4cyclictest1813657-21turbostat10:00:003
1595275992522,1cyclictest0-21swapper/308:25:003
1595275992014,4cyclictest1673701-21turbostat08:10:013
159527599193,6cyclictest1762810-21turbostat09:20:003
159527599191,14cyclictest1959556-21taskset11:55:003
159527599191,13cyclictest1921385-21turbostat11:25:003
1595275991814,1cyclictest0-21swapper/311:20:013
159527599181,13cyclictest1826830-21taskset10:10:173
159527599181,12cyclictest1927972-21turbostat11:30:013
159527599181,12cyclictest1851780-21taskset10:30:003
1595275991714,1cyclictest0-21swapper/307:45:243
159527599171,12cyclictest1940615-21sleep11:40:003
159527599171,12cyclictest1889999-21chrt11:00:143
159527599171,12cyclictest1889999-21chrt11:00:143
159527599171,12cyclictest1845207-21taskset10:24:553
159527599171,12cyclictest1781154-21taskset09:30:213
159527599171,12cyclictest1769661-21chrt09:25:123
159527599170,13cyclictest1801453-21taskset09:50:143
159527599165,8cyclictest1737203-21chrt08:56:523
159527599165,8cyclictest16739402sleep308:10:113
1595275991613,1cyclictest0-21swapper/312:20:173
1595275991613,1cyclictest0-21swapper/307:30:013
1595275991613,1cyclictest0-21swapper/307:15:013
159527599161,12cyclictest2010135-21chrt12:31:073
159527599161,12cyclictest1984844-21taskset12:12:083
159527599161,12cyclictest1889063-21taskset10:55:253
159527599161,12cyclictest1883159-21sleep10:55:003
159527599161,12cyclictest1876150-21chrt10:45:233
159527599161,12cyclictest1819741-21taskset10:02:073
159527599161,12cyclictest1794156-21taskset09:40:243
159527599161,12cyclictest1769393-21sleep09:25:003
159527599161,12cyclictest1738050-21taskset09:00:163
159527599161,12cyclictest1705262-21chrt08:31:223
159527599161,12cyclictest1636165-21taskset07:40:133
159527599161,12cyclictest1601322-21taskset07:12:153
159527599161,11cyclictest1953220-21taskset11:49:553
159527599161,11cyclictest1870480-21taskset10:44:553
159527599161,11cyclictest1711551-21taskset08:35:353
159527599160,12cyclictest1686381-21taskset08:20:013
307598150,11rtkit-daemon1832277-21seq10:11:181
16348882151,3sleep01629524-21/usr/sbin/munin07:35:270
1595275991512,1cyclictest0-21swapper/309:05:213
1595275991512,1cyclictest0-21swapper/308:00:183
159527599151,12cyclictest1730792-21taskset08:50:263
159527599151,11cyclictest1991060-21chrt12:15:443
159527599151,11cyclictest1972706-21taskset12:05:063
159527599151,11cyclictest1966404-21taskset12:00:063
159527599151,11cyclictest1960059-21taskset11:55:043
159527599151,11cyclictest1845461-21chrt10:25:033
159527599151,11cyclictest1835927-21taskset10:15:183
159527599151,11cyclictest1756369-21taskset09:13:463
159527599151,11cyclictest1717880-21taskset08:40:243
159527599151,11cyclictest1654327-21taskset07:50:353
159527599151,11cyclictest1610321-21taskset07:20:183
159527599150,12cyclictest2010689-21taskset12:35:083
159527599150,12cyclictest1908214-21taskset11:10:243
159527599150,12cyclictest1902298-21chrt11:09:003
159527599150,12cyclictest1660342-21chrt07:55:233
159527599150,11cyclictest1693342-21taskset08:25:133
17693632141,9sleep21769376-21turbostat09:25:002
159527599141,11cyclictest1946747-21chrt11:43:023
159527599141,11cyclictest1933924-21chrt11:30:283
159527599141,11cyclictest1863858-21chrt10:36:233
159527599141,11cyclictest1825941-21taskset10:05:483
159527599141,11cyclictest1800709-21taskset09:46:083
159527599141,11cyclictest1718680-21taskset08:45:133
159527599141,11cyclictest1718680-21taskset08:45:133
159527599141,11cyclictest1628707-21taskset07:30:233
1595275991411,1cyclictest0-21swapper/312:25:143
159527599140,11cyclictest1782244-21taskset09:35:063
159527599140,11cyclictest1635495-21taskset07:37:203
307598130,8rtkit-daemon1953332-21latency_hist11:50:010
307598130,8rtkit-daemon1807577-21/usr/sbin/munin09:55:231
19853642121,8sleep11985508-21df12:15:151
16473772121,8sleep11647491-21ntpq07:45:221
16187932120,9sleep11620824-21cut07:25:171
307598110,5rtkit-daemon1718528-21apt-get08:45:121
307598110,5rtkit-daemon1718528-21apt-get08:45:121
18833882111,7sleep11883421-21apt-get10:55:121
18594022110,8sleep01861040-21cut10:35:190
17949772110,8sleep21795131-21df_inode09:45:122
17699432111,7sleep11770254-21sed09:25:151
16245112111,7sleep01625614-21kthreadcore07:30:170
307598100,7rtkit-daemon714-21snmpd09:23:421
307598100,6rtkit-daemon716-21ntpd08:10:191
307598100,6rtkit-daemon2965-21cron12:23:000
307598100,5rtkit-daemon1672790-21/usr/sbin/munin08:05:211
307598100,2rtkit-daemon1598995-21grep07:10:181
19232542100,7sleep11925162-21cut11:25:181
18380232100,7sleep21838094-21/usr/sbin/munin10:15:222
18205372100,7sleep21820822-21cut10:05:162
17939922100,7sleep21794155-21sed09:40:242
16562872100,7sleep11658061-21cut07:55:191
15914492105,2sleep30-21swapper/307:05:193
15891412102,4sleep21589241-21cut07:05:142
15891052101,3sleep11589138-21apt-get07:05:131
30759890,6rtkit-daemon714-21snmpd08:01:101
30759890,6rtkit-daemon493-21gmain08:31:501
30759890,5rtkit-daemon217-21plymouthd12:00:470
30759890,5rtkit-daemon1601707-21munin-node07:20:021
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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