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2025-11-22 - 19:36
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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 Sat Nov 22, 2025 12:44:43)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
293142209191,13sleep10-21swapper/107:08:401
292112204189,11sleep00-21swapper/007:07:190
291942191178,9sleep30-21swapper/307:07:053
290792171152,14sleep20-21swapper/207:05:352
89482460,0sleep10-21swapper/112:15:171
304322420,0sleep30-21swapper/312:25:523
274722330,0sleep00-21swapper/011:35:200
215202110,0sleep20-21swapper/211:16:132
2958799102,4cyclictest12642-21sh08:44:590
27752100,0sleep30-21swapper/311:40:003
225482100,0sleep10-21swapper/109:40:161
7685290,0sleep10-21swapper/110:20:401
4932290,0sleep00-21swapper/011:40:210
295879992,1cyclictest225-21systemd-journal07:55:000
295879991,4cyclictest27593-21sh11:20:010
295879990,1cyclictest5227-21munin-run08:29:590
20230290,0sleep10-21swapper/110:27:161
295879982,1cyclictest8059-21ssh09:17:030
25533280,0sleep00-21swapper/009:25:210
295879972,1cyclictest23790-21ssh10:29:320
295879970,2cyclictest7417-21munin-run11:10:010
295879970,2cyclictest19824-21latency_hist12:05:000
295929960,6cyclictest0-21swapper/212:20:122
295879961,1cyclictest7141-21ssh09:32:300
16195260,0sleep10-21swapper/108:50:151
5777250,0sleep00-21swapper/010:20:140
295979955,0cyclictest32144-21kworker/3:111:25:033
295979955,0cyclictest32144-21kworker/3:110:51:283
295979955,0cyclictest32144-21kworker/3:109:21:563
295979955,0cyclictest32144-21kworker/3:109:10:443
295979955,0cyclictest32144-21kworker/3:108:59:303
295979955,0cyclictest32144-21kworker/3:108:48:193
295979955,0cyclictest32144-21kworker/3:108:37:083
295979955,0cyclictest32144-21kworker/3:108:25:553
295979955,0cyclictest32144-21kworker/3:108:03:323
295979955,0cyclictest32144-21kworker/3:107:29:573
295979955,0cyclictest32144-21kworker/3:107:18:473
295979955,0cyclictest11435-21kworker/3:212:32:133
295979955,0cyclictest11435-21kworker/3:212:09:513
295979950,5cyclictest0-21swapper/308:10:143
295929955,0cyclictest0-21swapper/209:44:532
295929953,2cyclictest11741-21kworker/2:010:20:332
295929950,5cyclictest28130-21ssh09:10:412
295929950,5cyclictest0-21swapper/211:11:452
295929950,5cyclictest0-21swapper/210:44:592
295929950,5cyclictest0-21swapper/207:30:132
295889951,2cyclictest0-21swapper/111:20:121
295879953,1cyclictest2760-21ssh10:35:130
295879950,5cyclictest0-21swapper/011:55:120
295879950,5cyclictest0-21swapper/010:52:170
295879950,0cyclictest0-21swapper/012:05:020
295979944,0cyclictest0-21swapper/311:45:033
295979944,0cyclictest0-21swapper/311:01:243
295979944,0cyclictest0-21swapper/311:01:233
295979943,1cyclictest15689-21tr08:50:133
295979942,1cyclictest3342-21diskstats10:35:163
295979942,1cyclictest18253-21tune2fs10:10:163
295979941,1cyclictest0-21swapper/307:55:133
295979941,1cyclictest0-21swapper/307:35:123
295979940,4cyclictest25941-21ssh12:24:193
295979940,4cyclictest23551-21df_inode11:50:153
295979940,4cyclictest20308-21apt-get09:00:133
295979940,4cyclictest16321-21memory10:25:153
295979940,4cyclictest0-21swapper/312:36:113
295979940,4cyclictest0-21swapper/312:18:183
295979940,4cyclictest0-21swapper/311:40:073
295979940,4cyclictest0-21swapper/310:45:163
295979940,4cyclictest0-21swapper/310:20:123
295979940,4cyclictest0-21swapper/310:06:253
295979940,4cyclictest0-21swapper/309:55:143
295979940,4cyclictest0-21swapper/309:52:083
295979940,4cyclictest0-21swapper/309:45:023
295979940,4cyclictest0-21swapper/309:05:133
295979940,4cyclictest0-21swapper/308:17:423
295979940,4cyclictest0-21swapper/307:10:133
295979940,3cyclictest6962-21sh09:16:233
295979940,3cyclictest4053-21/usr/sbin/munin07:20:213
295979940,3cyclictest32721-21sh09:29:383
295979940,3cyclictest32057-21sh10:33:253
295979940,3cyclictest31588-21sh10:16:363
295979940,3cyclictest30869-21sh11:20:493
295979940,3cyclictest30707-21ssh09:44:353
295979940,3cyclictest21534-21cut09:40:023
295979940,3cyclictest19231-21irqstats11:15:183
295979940,3cyclictest18463-21fschecks_count07:50:183
295979940,3cyclictest17720-21sh11:30:233
295979940,3cyclictest1608-21irqstats11:55:163
295979940,3cyclictest13567-21sh11:12:283
295979940,3cyclictest11522-21irqstats12:00:153
295979940,1cyclictest30334-21/usr/sbin/munin12:10:173
295979940,1cyclictest15400-21/usr/sbin/munin07:45:193
295979940,1cyclictest15400-21/usr/sbin/munin07:45:183
295979940,1cyclictest12928-21/usr/sbin/munin07:40:223
295979940,1cyclictest10192-21/usr/sbin/munin10:55:203
295979940,0cyclictest0-21swapper/309:32:123
295929944,0cyclictest31-21ksoftirqd/211:50:132
295929944,0cyclictest31-21ksoftirqd/211:00:132
295929944,0cyclictest31-21ksoftirqd/211:00:122
295929944,0cyclictest0-21swapper/210:06:512
295929944,0cyclictest0-21swapper/209:25:052
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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