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2026-09-03 - 14:30
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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 rack5slot2.osadl.org (updated Thu Sep 03, 2026 12:44:41)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
188132204189,11sleep10-21swapper/107:09:441
185092195179,11sleep30-21swapper/307:05:503
185012183166,12sleep00-21swapper/007:05:410
166182171151,15sleep20-21swapper/207:05:112
289602470,0sleep10-21swapper/111:26:541
231352100,0sleep30-21swapper/312:30:133
107652100,0sleep30-21swapper/309:55:553
189999992,3cyclictest9933-21perf09:40:010
30948260,0sleep30-21swapper/310:22:493
24257260,0sleep10-21swapper/111:40:341
190089962,3cyclictest14450-21ssh09:10:013
190089960,5cyclictest0-21swapper/308:20:123
190039961,4cyclictest0-21swapper/210:50:112
190039960,6cyclictest28872-21ssh11:26:502
190039960,6cyclictest16931-21ssh11:37:122
190039960,0cyclictest8606-21ssh11:16:392
8628250,0sleep20-21swapper/209:55:152
190089955,0cyclictest30931-21kworker/3:212:18:193
190089955,0cyclictest30931-21kworker/3:210:59:573
190089955,0cyclictest30931-21kworker/3:210:37:353
190089955,0cyclictest30931-21kworker/3:209:52:483
190089955,0cyclictest30931-21kworker/3:209:41:353
190089955,0cyclictest30931-21kworker/3:209:41:353
190089955,0cyclictest23280-21kworker/3:008:34:263
190089955,0cyclictest23280-21kworker/3:008:12:013
190089952,1cyclictest0-21swapper/307:25:123
190089950,4cyclictest16119-21memory09:10:163
190089950,1cyclictest0-21swapper/310:02:383
190039951,4cyclictest0-21swapper/211:46:332
190039951,4cyclictest0-21swapper/211:44:132
190039951,4cyclictest0-21swapper/211:34:262
190039950,5cyclictest0-21swapper/211:22:512
190039950,5cyclictest0-21swapper/211:04:302
190009951,3cyclictest0-21swapper/110:45:121
190009950,5cyclictest0-21swapper/112:16:101
190009950,5cyclictest0-21swapper/111:09:501
189999951,4cyclictest0-21swapper/009:30:020
189999950,5cyclictest2194-21apt-get11:30:160
189999950,5cyclictest0-21swapper/011:45:090
189999950,4cyclictest0-21swapper/007:20:100
189999950,1cyclictest21958-21ntp_states07:15:000
16730250,0sleep20-21swapper/209:26:322
11163250,0sleep1201rcuc/112:24:071
32412240,0sleep10-21swapper/112:01:211
190089944,0cyclictest30931-21kworker/3:210:48:463
190089944,0cyclictest23280-21kworker/3:008:56:493
190089944,0cyclictest23280-21kworker/3:008:45:363
190089944,0cyclictest23280-21kworker/3:008:00:503
190089944,0cyclictest23280-21kworker/3:007:49:393
190089944,0cyclictest23280-21kworker/3:007:38:283
190089942,1cyclictest799-21runrttasks12:38:083
190089941,3cyclictest0-21swapper/308:15:113
190089941,2cyclictest0-21swapper/310:30:153
190089941,2cyclictest0-21swapper/307:15:113
190089940,4cyclictest0-21swapper/312:25:103
190089940,4cyclictest0-21swapper/312:20:043
190089940,4cyclictest0-21swapper/312:10:593
190089940,4cyclictest0-21swapper/312:00:123
190089940,4cyclictest0-21swapper/311:41:503
190089940,4cyclictest0-21swapper/311:30:013
190089940,4cyclictest0-21swapper/311:25:103
190089940,4cyclictest0-21swapper/311:20:103
190089940,4cyclictest0-21swapper/311:14:403
190089940,4cyclictest0-21swapper/311:09:263
190089940,4cyclictest0-21swapper/311:02:353
190089940,4cyclictest0-21swapper/310:25:103
190089940,4cyclictest0-21swapper/310:15:123
190089940,4cyclictest0-21swapper/310:05:113
190089940,4cyclictest0-21swapper/309:30:153
190089940,4cyclictest0-21swapper/309:20:033
190089940,4cyclictest0-21swapper/307:50:113
190089940,4cyclictest0-21swapper/307:40:183
190089940,3cyclictest9694-21ssh12:06:163
190089940,3cyclictest8031-21ssh11:49:403
190089940,3cyclictest5231-21/usr/sbin/munin10:10:213
190089940,3cyclictest4858-21ssh09:36:503
190089940,3cyclictest30517-21/usr/sbin/munin07:30:123
190089940,3cyclictest26767-21ssh11:59:033
190089940,3cyclictest20517-21fschecks_time10:50:123
190089940,3cyclictest16765-21sshd08:05:243
190089940,3cyclictest12506-21ssh09:25:023
190089940,3cyclictest11686-21ssh11:35:013
190089940,3cyclictest11360-21ssh11:50:293
190089940,3cyclictest0-21swapper/307:55:093
190089940,0cyclictest0-21swapper/309:18:413
190039942,2cyclictest24330-21needreboot09:30:212
190039942,1cyclictest988-21diskstats09:35:142
190039942,1cyclictest20225-21ntpq11:55:142
190039941,2cyclictest9706-21latency_hist07:55:002
190039941,1cyclictest0-21swapper/212:15:112
190039940,4cyclictest31089-21memory07:30:152
190039940,4cyclictest29141-21apt-get10:55:032
190039940,4cyclictest14435-21diskmemload12:37:232
190039940,4cyclictest0-21swapper/212:30:152
190039940,4cyclictest0-21swapper/211:05:102
190039940,4cyclictest0-21swapper/210:43:252
190039940,4cyclictest0-21swapper/210:28:542
190039940,4cyclictest0-21swapper/210:20:132
190039940,4cyclictest0-21swapper/210:17:382
190039940,4cyclictest0-21swapper/209:50:562
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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