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2026-08-02 - 20:20
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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 Aug 02, 2026 12:44:40)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
321332199185,10sleep10-21swapper/107:09:441
318942187171,11sleep30-21swapper/307:06:423
318142187170,12sleep00-21swapper/007:05:370
31871211379,12sleep20-21swapper/207:06:242
118992450,0sleep10-21swapper/112:34:101
166032180,0sleep30-21swapper/311:46:413
70542100,0sleep20-21swapper/211:41:592
222432100,0sleep10-21swapper/112:22:381
323279982,3cyclictest471-21munin-run08:15:010
31880280,0sleep20-21swapper/210:16:242
323279971,3cyclictest15122-21munin-run10:25:010
323409960,5cyclictest31674-21irqstats08:10:163
323279961,5cyclictest0-21swapper/009:30:130
323279960,6cyclictest0-21swapper/007:45:110
323279960,3cyclictest27994-21munin-run08:05:000
323409955,0cyclictest8445-21kworker/3:210:47:073
323409955,0cyclictest0-21swapper/307:45:183
323409950,5cyclictest0-21swapper/311:41:453
323409950,2cyclictest0-21swapper/310:55:173
323369954,1cyclictest15672-21dpkg07:40:002
323369950,5cyclictest28030-21sshd11:04:012
323369950,5cyclictest0-21swapper/210:13:582
323369950,4cyclictest2491-21munin-node07:15:002
323319952,1cyclictest0-21swapper/109:15:111
323319951,2cyclictest0-21swapper/109:50:161
323319950,5cyclictest0-21swapper/111:30:181
323319950,5cyclictest0-21swapper/109:37:491
323279953,2cyclictest3-21ksoftirqd/008:30:150
323279952,1cyclictest3-21ksoftirqd/011:35:000
323279950,5cyclictest0-21swapper/009:28:000
323279950,1cyclictest25521-21sendmail08:00:000
28324250,0sleep30-21swapper/311:20:153
26851250,1sleep226854-21needreboot09:05:182
323409944,0cyclictest28894-21kworker/3:112:27:533
323409944,0cyclictest13593-21ssh12:18:243
323409944,0cyclictest0-21swapper/311:08:513
323409944,0cyclictest0-21swapper/309:34:353
323409942,1cyclictest1743-21fschecks_count09:45:153
323409941,3cyclictest14004-21tr12:35:113
323409941,2cyclictest0-21swapper/307:10:133
323409940,4cyclictest5700-21apt-get08:25:123
323409940,4cyclictest0-21swapper/312:20:593
323409940,4cyclictest0-21swapper/312:10:133
323409940,4cyclictest0-21swapper/311:50:143
323409940,4cyclictest0-21swapper/311:35:123
323409940,4cyclictest0-21swapper/310:30:123
323409940,4cyclictest0-21swapper/310:26:323
323409940,4cyclictest0-21swapper/310:20:133
323409940,4cyclictest0-21swapper/310:09:133
323409940,4cyclictest0-21swapper/310:00:133
323409940,4cyclictest0-21swapper/309:35:273
323409940,4cyclictest0-21swapper/309:20:133
323409940,4cyclictest0-21swapper/309:11:363
323409940,4cyclictest0-21swapper/309:00:123
323409940,4cyclictest0-21swapper/308:55:133
323409940,4cyclictest0-21swapper/308:45:093
323409940,4cyclictest0-21swapper/308:35:133
323409940,4cyclictest0-21swapper/307:50:133
323409940,3cyclictest9863-21sh12:32:523
323409940,3cyclictest8838-21memory11:10:173
323409940,3cyclictest799-21runrttasks12:08:473
323409940,3cyclictest7248-21/usr/sbin/munin09:15:153
323409940,3cyclictest7021-21ntp_states07:20:193
323409940,3cyclictest25498-21latency_hist08:00:003
323409940,3cyclictest2539-21cstates07:15:013
323409940,3cyclictest24827-21sh09:56:343
323409940,3cyclictest20486-21ssh11:32:393
323409940,3cyclictest19031-21perl10:10:143
323409940,3cyclictest17278-21rm11:15:023
323409940,3cyclictest1243-21perl10:50:163
323409940,3cyclictest11760-21perl09:50:173
323409940,3cyclictest11268-21wc12:00:203
323409940,1cyclictest4855-21/usr/sbin/munin11:25:143
323409940,1cyclictest25921-21/usr/sbin/munin09:25:133
323409940,1cyclictest18064-21/usr/sbin/munin08:50:143
323409940,1cyclictest14563-21head10:40:183
323409940,1cyclictest13152-21/usr/sbin/munin07:35:133
323409940,1cyclictest13123-21/usr/sbin/munin08:40:133
323409940,0cyclictest0-21swapper/311:03:283
323369944,0cyclictest0-21swapper/212:34:132
323369944,0cyclictest0-21swapper/211:48:152
323369944,0cyclictest0-21swapper/211:12:442
323369944,0cyclictest0-21swapper/209:52:162
323369944,0cyclictest0-21swapper/209:42:062
323369944,0cyclictest0-21swapper/209:33:132
323369943,1cyclictest11722-21ntp_states10:55:182
323369942,1cyclictest802-21snmpd09:15:262
323369942,1cyclictest0-21swapper/210:40:112
323369940,4cyclictest23259-21apt-get07:55:152
323369940,4cyclictest1893-21/usr/sbin/munin10:50:192
323369940,4cyclictest0-21swapper/212:19:202
323369940,4cyclictest0-21swapper/212:12:252
323369940,4cyclictest0-21swapper/212:00:122
323369940,4cyclictest0-21swapper/211:56:312
323369940,4cyclictest0-21swapper/211:54:562
323369940,4cyclictest0-21swapper/211:29:122
323369940,4cyclictest0-21swapper/211:23:312
323369940,4cyclictest0-21swapper/210:25:122
323369940,4cyclictest0-21swapper/209:26:412
323369940,4cyclictest0-21swapper/209:10:142
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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