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2026-07-05 - 22:00
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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 Jul 05, 2026 12:43:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1248753994239,1cyclictest0-21swapper/312:30:013
1248753993026,1cyclictest0-21swapper/312:00:143
1248753992825,1cyclictest0-21swapper/311:10:003
1248753992724,1cyclictest0-21swapper/311:00:273
1248753992623,1cyclictest0-21swapper/311:25:003
1248753992623,1cyclictest0-21swapper/310:35:013
1248753992522,1cyclictest0-21swapper/311:40:163
1248753992522,1cyclictest0-21swapper/311:35:003
1248753992522,1cyclictest0-21swapper/311:35:003
1248753992522,1cyclictest0-21swapper/308:20:133
1248753992521,1cyclictest0-21swapper/310:20:153
1248753992421,1cyclictest0-21swapper/311:00:003
1248753992421,1cyclictest0-21swapper/310:06:393
1248753992421,1cyclictest0-21swapper/309:50:253
1248753992421,1cyclictest0-21swapper/309:05:163
1248753992421,1cyclictest0-21swapper/308:40:163
124875399227,12cyclictest1560549-21sleep10:50:003
1248753992219,1cyclictest0-21swapper/312:05:213
1248753992219,1cyclictest0-21swapper/311:50:143
1248753992219,1cyclictest0-21swapper/311:20:003
1248753992219,1cyclictest0-21swapper/310:10:253
1248753992219,1cyclictest0-21swapper/309:25:143
1248753992219,1cyclictest0-21swapper/309:20:263
1248753992219,1cyclictest0-21swapper/308:05:263
129740022115,3sleep20-21swapper/207:45:182
1248753992118,1cyclictest0-21swapper/312:20:043
1248753992118,1cyclictest0-21swapper/309:40:143
1248753992118,1cyclictest0-21swapper/309:35:153
1248753992118,1cyclictest0-21swapper/307:40:003
124875399209,8cyclictest1654507-21sleep11:50:003
1248753992017,1cyclictest0-21swapper/312:15:173
1248753992017,1cyclictest0-21swapper/311:35:233
1248753992017,1cyclictest0-21swapper/310:40:293
1248753992017,1cyclictest0-21swapper/309:00:183
1248753992017,1cyclictest0-21swapper/308:45:143
1248753992017,1cyclictest0-21swapper/307:20:013
124875399201,14cyclictest1730633-21taskset12:35:213
124875399201,14cyclictest1353269-21taskset08:29:563
124875399201,14cyclictest1340464-21turbostat08:20:003
124875399196,9cyclictest1666704-21chrt11:55:193
1248753991916,1cyclictest0-21swapper/309:45:193
124875399191,14cyclictest1419219-21taskset09:17:593
124875399191,14cyclictest1359946-21taskset08:35:133
124875399191,14cyclictest1270114-21turbostat07:25:003
124875399191,13cyclictest1522064-21taskset10:25:143
124875399191,13cyclictest1334082-21taskset08:15:003
124875399185,9cyclictest1435957-21chrt09:30:133
124875399182,12cyclictest1276258-21taskset07:27:183
1248753991816,1cyclictest0-21swapper/311:15:003
1248753991816,1cyclictest0-21swapper/310:00:023
1248753991816,1cyclictest0-21swapper/308:30:163
1248753991815,1cyclictest0-21swapper/310:35:193
124875399181,13cyclictest1692253-21taskset12:11:123
124875399181,13cyclictest1567775-21taskset10:53:263
124875399181,13cyclictest1411050-21taskset09:11:533
124875399181,13cyclictest1385438-21taskset08:55:093
124875399181,13cyclictest1320930-21chrt08:01:213
124875399181,13cyclictest1320930-21chrt08:01:213
160781121713,2sleep10-21swapper/111:20:021
15514732171,13sleep11551479-21ssh10:41:251
14719802171,8sleep01472281-21/usr/sbin/munin09:50:200
124875399174,10cyclictest1302369-21chrt07:50:123
1248753991714,1cyclictest0-21swapper/310:15:163
1248753991714,1cyclictest0-21swapper/307:40:073
1248753991712,2cyclictest0-21swapper/308:50:233
124875399171,12cyclictest1615786-21chrt11:25:123
124875399171,12cyclictest1480922-21taskset09:56:033
16839102160,3sleep21684111-21cat12:05:262
13779092161,11sleep21377951-21ntp_states08:45:232
124875399164,8cyclictest1296188-21chrt07:45:143
1248753991614,1cyclictest0-21swapper/307:10:183
124875399161,12cyclictest1313983-21taskset07:55:243
124875399161,12cyclictest1276931-21taskset07:30:143
124875399161,11cyclictest1723527-21chrt12:30:483
16934792151,11sleep01693485-21ssh12:14:380
16704472151,10sleep01670453-21ssh12:00:020
14496612151,7sleep11449663-21ssh09:35:421
14205142151,11sleep11420257-21/usr/sbin/munin09:20:141
12950492150,13sleep11295234-21cat07:40:281
12483802150,2sleep30-21swapper/307:07:183
12871112141,11sleep01288156-21memory07:35:210
12470492141,9sleep11242527-21/usr/sbin/munin07:05:201
16691452130,1sleep20-21swapper/211:57:082
16497242130,6sleep11651426-21kthreadcore11:45:201
16080842120,6sleep21607588-21sendmail-msp11:20:152
15973512121,8sleep21592118-21/usr/sbin/munin11:10:212
15764632121,3sleep21576460-21apt-get11:00:142
15660832120,3sleep11566127-21ssh10:50:231
14503032121,8sleep21450307-21ssh09:37:322
14042162120,1sleep00-21swapper/009:08:030
13970612121,8sleep01397106-21/usr/sbin/munin09:00:250
12892782121,8sleep20-21swapper/207:40:002
17305742110,8sleep21725324-21/usr/sbin/munin12:35:212
16920692110,8sleep21692075-21ssh12:10:432
16858342111,7sleep01686014-21latency_hist12:10:010
16626632111,7sleep11662613-21/usr/sbin/munin11:55:141
15438212110,7sleep21543827-21ssh10:36:532
15139772111,6sleep11514018-21ssh10:20:131
14262782110,1sleep00-21swapper/009:20:450
14034492110,1sleep20-21swapper/209:05:242
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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