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2025-11-27 - 10:56
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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 rack0slot4.osadl.org (updated Thu Nov 27, 2025 00:46:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
6531172372364,5sleep150-21swapper/1519:06:097
6533472363319,14sleep100-21swapper/1019:09:172
6530852360317,35sleep140-21swapper/1419:05:516
6533582359315,15sleep40-21swapper/419:09:2710
6531202356348,5sleep10-21swapper/119:06:101
6531462354329,16sleep90-21swapper/919:06:3515
6530712354309,15sleep50-21swapper/519:05:4311
6533712345323,14sleep00-21swapper/019:09:390
6531862345322,15sleep60-21swapper/619:07:0312
6532882344321,15sleep110-21swapper/1119:08:303
6533392343325,12sleep20-21swapper/219:09:098
6531262343300,34sleep70-21swapper/719:06:1713
6532852342320,14sleep80-21swapper/819:08:2714
6530672338315,15sleep30-21swapper/319:05:419
6530582338315,15sleep130-21swapper/1319:05:355
6532292337313,15sleep120-21swapper/1219:07:434
65381199207205,1cyclictest843693-21nodev-device-ev22:55:172
65378499128128,0cyclictest0-21swapper/222:55:188
65378499119119,0cyclictest674543-21nodev-device-ev19:30:188
653804991040,103cyclictest0-21swapper/800:30:1814
6537799910099,1cyclictest925063-21nodev-device-ev00:30:180
653809999291,1cyclictest683109-21nodev-device-ev19:40:1715
653791999190,1cyclictest865117-21nodev-device-ev23:20:1710
653801998988,1cyclictest717358-21nodev-device-ev20:20:1613
653801998988,1cyclictest717358-21nodev-device-ev20:20:1513
653794998483,1cyclictest0-21swapper/522:05:1711
653801998281,1cyclictest0-21swapper/722:25:1813
653789998180,1cyclictest0-21swapper/320:55:179
653820997978,1cyclictest779469-21nodev-device-ev21:40:175
653814997776,1cyclictest740914-21nodev-device-ev20:55:173
653799997776,1cyclictest916503-21nodev-device-ev00:20:1812
653794997574,1cyclictest766608-21nodev-device-ev21:25:1711
653781997574,1cyclictest700231-21nodev-device-ev20:00:191
653784997271,1cyclictest0-21swapper/223:45:178
653784996765,1cyclictest0-21swapper/223:55:178
653824996463,1cyclictest0-21swapper/1400:15:186
653801996362,1cyclictest732352-21nodev-device-ev20:45:1713
653781996059,1cyclictest852256-21nodev-device-ev23:05:171
653789995958,1cyclictest0-21swapper/322:50:189
653826995756,1cyclictest0-21swapper/1522:15:177
653799995754,3cyclictest762343-21nodev-device-ev21:20:1612
653817995655,1cyclictest0-21swapper/1222:20:174
653811995655,1cyclictest0-21swapper/1020:30:122
653814995554,1cyclictest839407-21nodev-device-ev22:50:183
653814995450,0cyclictest0-21swapper/1120:15:313
653814995450,0cyclictest0-21swapper/1120:15:313
653789995453,1cyclictest687378-21nodev-device-ev19:45:179
653820995352,1cyclictest830840-21nodev-device-ev22:40:165
653824995049,1cyclictest796581-21nodev-device-ev22:00:196
653809995049,1cyclictest0-21swapper/920:00:2015
653814994948,1cyclictest0-21swapper/1119:45:173
653817994746,1cyclictest873682-21nodev-device-ev23:30:184
653817994746,1cyclictest873682-21nodev-device-ev23:30:184
653804994746,1cyclictest678812-21nodev-device-ev19:35:1914
653824994443,1cyclictest0-21swapper/1423:25:206
653820994240,1cyclictest800889-21nodev-device-ev22:05:185
653801994230,8cyclictest777421-21kworker/u32:3+flush-259:022:00:1913
653779994241,1cyclictest0-21swapper/019:35:190
653814994140,1cyclictest900674-21kworker/u32:0+events_unbound00:15:183
653814994137,4cyclictest0-21swapper/1121:23:553
65381499400,36cyclictest0-21swapper/1121:26:113
65381499400,35cyclictest0-21swapper/1121:02:293
65381499390,39cyclictest0-21swapper/1120:29:073
65381499390,39cyclictest0-21swapper/1120:29:073
65381499390,35cyclictest0-21swapper/1120:20:373
65381499390,35cyclictest0-21swapper/1120:20:373
65381499390,35cyclictest0-21swapper/1100:35:013
653814993721,1cyclictest0-21swapper/1122:00:213
65381499370,26cyclictest0-21swapper/1121:14:133
65382099361,34cyclictest0-21swapper/1320:10:195
653814993635,1cyclictest565648-21kworker/u32:0+events_unbound19:15:133
65381499362,30cyclictest0-21swapper/1120:10:213
653809993635,1cyclictest0-21swapper/923:05:1715
653789993635,1cyclictest680453-21kworker/3:2+events22:15:149
653781993635,1cyclictest736618-21nodev-device-ev20:50:171
65381499352,0cyclictest779449-21kworker/11:1-events22:05:253
65381499350,31cyclictest0-21swapper/1121:36:283
653789993535,0cyclictest680453-21kworker/3:2+events23:57:239
653789993535,0cyclictest680453-21kworker/3:2+events23:45:249
653789993535,0cyclictest680453-21kworker/3:2+events23:11:419
653789993535,0cyclictest680453-21kworker/3:2+events21:04:599
653789993535,0cyclictest680453-21kworker/3:2+events20:22:199
653789993535,0cyclictest680453-21kworker/3:2+events20:22:199
653789993535,0cyclictest680453-21kworker/3:2+events00:29:339
653789993535,0cyclictest680453-21kworker/3:2+events00:08:139
653789993534,1cyclictest680453-21kworker/3:2+events21:17:099
653789993534,1cyclictest680453-21kworker/3:2+events20:30:199
653789993434,0cyclictest680453-21kworker/3:2+events23:40:299
653789993434,0cyclictest680453-21kworker/3:2+events23:40:299
653789993434,0cyclictest680453-21kworker/3:2+events23:20:379
653789993434,0cyclictest680453-21kworker/3:2+events23:08:459
653789993434,0cyclictest680453-21kworker/3:2+events23:00:459
653789993434,0cyclictest680453-21kworker/3:2+events22:41:339
653789993434,0cyclictest680453-21kworker/3:2+events22:32:269
653789993434,0cyclictest680453-21kworker/3:2+events22:06:219
653789993434,0cyclictest680453-21kworker/3:2+events21:59:419
653789993434,0cyclictest680453-21kworker/3:2+events21:52:199
653789993434,0cyclictest680453-21kworker/3:2+events21:45:099
653789993434,0cyclictest680453-21kworker/3:2+events21:31:499
653789993434,0cyclictest680453-21kworker/3:2+events21:21:179
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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