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2026-09-20 - 20:50
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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 Sun Sep 20, 2026 12:44:40)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
297292197183,10sleep10-21swapper/107:07:391
297042187148,14sleep30-21swapper/307:07:223
295792176158,13sleep00-21swapper/007:05:420
29755211294,13sleep20-21swapper/207:08:012
193932540,0sleep00-21swapper/011:16:590
112432430,0sleep10-21swapper/112:35:151
113772380,0sleep10-21swapper/109:51:011
18263290,0sleep20-21swapper/209:38:412
300969982,3cyclictest10701-21awk07:35:000
300969971,3cyclictest3298-21perf07:20:000
300969965,1cyclictest11402-21sh11:30:000
300969960,3cyclictest8922-21munin-run11:45:000
7330250,1sleep1211ktimersoftd/109:33:041
301099951,2cyclictest0-21swapper/309:25:153
301099950,5cyclictest0-21swapper/312:34:163
301099950,5cyclictest0-21swapper/312:04:433
301099950,5cyclictest0-21swapper/310:25:213
301099950,4cyclictest0-21swapper/308:30:143
301059950,5cyclictest7399-21ssh11:27:252
301059950,5cyclictest0-21swapper/212:13:332
301059950,5cyclictest0-21swapper/209:44:502
301059950,5cyclictest0-21swapper/209:30:362
301059950,5cyclictest0-21swapper/208:40:142
301059950,0cyclictest25492-21diskmemload10:08:242
301009955,0cyclictest0-21swapper/112:16:301
300969950,5cyclictest0-21swapper/012:09:430
422240,3sleep2448-21ssh11:24:202
301099944,0cyclictest32642-21kworker/3:011:38:383
301099944,0cyclictest32642-21kworker/3:009:35:283
301099943,1cyclictest30802-21wc11:55:193
301099942,1cyclictest29030-21ssh10:16:103
301099941,2cyclictest0-21swapper/311:15:103
301099941,2cyclictest0-21swapper/310:30:123
301099941,2cyclictest0-21swapper/309:50:123
301099941,2cyclictest0-21swapper/307:20:123
301099941,1cyclictest0-21swapper/308:10:123
301099940,4cyclictest29770-21ssh11:22:183
301099940,4cyclictest24574-21ntp_states08:00:183
301099940,4cyclictest15170-21ssh12:37:133
301099940,4cyclictest0-21swapper/312:20:103
301099940,4cyclictest0-21swapper/311:45:183
301099940,4cyclictest0-21swapper/311:40:133
301099940,4cyclictest0-21swapper/311:30:123
301099940,4cyclictest0-21swapper/311:10:143
301099940,4cyclictest0-21swapper/310:45:133
301099940,4cyclictest0-21swapper/310:10:123
301099940,4cyclictest0-21swapper/310:05:113
301099940,4cyclictest0-21swapper/310:00:123
301099940,4cyclictest0-21swapper/309:55:123
301099940,4cyclictest0-21swapper/309:47:353
301099940,4cyclictest0-21swapper/309:40:443
301099940,4cyclictest0-21swapper/309:12:193
301099940,4cyclictest0-21swapper/308:55:123
301099940,4cyclictest0-21swapper/308:45:113
301099940,4cyclictest0-21swapper/308:05:023
301099940,3cyclictest9901-21ssh09:34:423
301099940,3cyclictest8366-21/usr/sbin/munin10:55:143
301099940,3cyclictest6959-21ssh12:16:153
301099940,3cyclictest32672-21latency_hist07:15:003
301099940,3cyclictest3179-21ssh10:20:133
301099940,3cyclictest30814-21ssh11:06:103
301099940,3cyclictest2690-21diskstats11:25:133
301099940,3cyclictest25841-21ssh12:10:023
301099940,3cyclictest25788-21latency_hist09:10:013
301099940,3cyclictest2514-21/usr/sbin/munin08:20:183
301099940,3cyclictest23723-21ssh11:51:543
301099940,3cyclictest21368-21ssh11:01:263
301099940,3cyclictest20789-21apt09:00:133
301099940,3cyclictest18294-21wc07:50:003
301099940,3cyclictest16281-21apt-get12:05:123
301099940,3cyclictest13534-21ssh10:40:583
301099940,3cyclictest12166-21ntp_states08:40:193
301099940,3cyclictest11443-21df_inode07:35:143
301099940,1cyclictest20585-21latency_hist07:55:003
301059944,0cyclictest0-21swapper/211:42:332
301059944,0cyclictest0-21swapper/211:08:392
301059944,0cyclictest0-21swapper/210:57:542
301059941,2cyclictest8420-21latency_hist07:30:002
301059940,4cyclictest21899-21apt-get11:35:012
301059940,4cyclictest21333-21df07:55:132
301059940,4cyclictest13773-21fschecks_time10:25:142
301059940,4cyclictest10797-21df_inode12:35:132
301059940,4cyclictest0-21swapper/212:25:032
301059940,4cyclictest0-21swapper/212:23:392
301059940,4cyclictest0-21swapper/212:15:192
301059940,4cyclictest0-21swapper/212:06:252
301059940,4cyclictest0-21swapper/211:50:132
301059940,4cyclictest0-21swapper/211:45:122
301059940,4cyclictest0-21swapper/211:13:272
301059940,4cyclictest0-21swapper/210:53:232
301059940,4cyclictest0-21swapper/210:41:132
301059940,4cyclictest0-21swapper/210:30:132
301059940,4cyclictest0-21swapper/210:15:132
301059940,4cyclictest0-21swapper/209:47:012
301059940,4cyclictest0-21swapper/209:27:122
301059940,4cyclictest0-21swapper/209:20:112
301059940,4cyclictest0-21swapper/209:15:122
301059940,4cyclictest0-21swapper/209:10:112
301059940,4cyclictest0-21swapper/208:53:172
301059940,4cyclictest0-21swapper/208:35:112
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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