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2026-05-25 - 03:14
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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 Mon May 25, 2026 00:44:40)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
274322203192,8sleep10-21swapper/119:09:321
271732194176,13sleep00-21swapper/019:06:140
272032192177,11sleep30-21swapper/319:06:373
274382119101,13sleep20-21swapper/219:09:362
196152690,0sleep30-21swapper/300:34:013
157332530,0sleep20-21swapper/200:31:362
310522520,1sleep12764299cyclictest19:15:121
191002410,0sleep00-21swapper/000:33:420
218982110,0sleep10-21swapper/121:40:121
276419993,3cyclictest9235-21perf21:50:000
276419971,5cyclictest0-21swapper/020:35:120
276489960,5cyclictest0-21swapper/319:20:113
276449960,5cyclictest0-21swapper/219:55:122
4313250,0sleep20-21swapper/221:47:022
31892250,0sleep10-21swapper/123:04:191
276489955,0cyclictest23504-21diskmemload23:59:113
276489955,0cyclictest14525-21kworker/3:119:49:203
276489955,0cyclictest0-21swapper/323:18:263
276489955,0cyclictest0-21swapper/320:05:123
276489954,1cyclictest30372-21grep19:15:003
276489950,5cyclictest0-21swapper/322:35:053
276489950,4cyclictest16367-21ntp_states22:40:163
276489950,4cyclictest11363-21apt-get20:45:123
276449950,5cyclictest10988-21apt-get21:35:022
276449950,5cyclictest0-21swapper/223:05:422
276449950,5cyclictest0-21swapper/222:29:022
276449950,4cyclictest31403-21sh23:20:012
276429950,5cyclictest0-21swapper/121:25:151
276419950,5cyclictest18405-21awk19:55:000
276419950,5cyclictest0-21swapper/022:30:340
276419950,5cyclictest0-21swapper/022:11:050
276419950,5cyclictest0-21swapper/020:30:010
276419950,5cyclictest0-21swapper/000:05:150
276419950,4cyclictest2998-21ssh22:50:140
276419950,0cyclictest0-21swapper/023:46:310
276419950,0cyclictest0-21swapper/023:38:310
276419950,0cyclictest0-21swapper/023:11:530
28775240,0sleep10-21swapper/123:18:331
276489944,0cyclictest14525-21kworker/3:121:30:063
276489944,0cyclictest14525-21kworker/3:121:30:063
276489944,0cyclictest0-21swapper/322:28:243
276489944,0cyclictest0-21swapper/321:48:323
276489944,0cyclictest0-21swapper/319:10:123
276489943,1cyclictest1285-21tr20:25:103
276489942,1cyclictest16105-21apt19:50:133
276489941,3cyclictest27335-21ls22:30:133
276489941,2cyclictest0-21swapper/323:20:113
276489941,2cyclictest0-21swapper/321:20:123
276489941,1cyclictest2989-21ssh22:50:133
276489941,1cyclictest0-21swapper/323:45:113
276489940,4cyclictest8051-21users19:30:203
276489940,4cyclictest4013-21sh22:02:503
276489940,4cyclictest25871-21ssh00:05:153
276489940,4cyclictest23504-21diskmemload22:15:173
276489940,4cyclictest14823-21irqstats20:50:163
276489940,4cyclictest0-21swapper/323:35:143
276489940,4cyclictest0-21swapper/322:55:333
276489940,4cyclictest0-21swapper/322:45:063
276489940,4cyclictest0-21swapper/322:05:013
276489940,4cyclictest0-21swapper/321:50:123
276489940,4cyclictest0-21swapper/321:25:113
276489940,4cyclictest0-21swapper/321:19:373
276489940,4cyclictest0-21swapper/321:10:023
276489940,4cyclictest0-21swapper/320:30:203
276489940,4cyclictest0-21swapper/320:20:113
276489940,4cyclictest0-21swapper/320:15:123
276489940,4cyclictest0-21swapper/300:38:293
276489940,4cyclictest0-21swapper/300:20:383
276489940,4cyclictest0-21swapper/300:11:183
276489940,4cyclictest0-21swapper/300:00:123
276489940,3cyclictest9387-21/usr/sbin/munin23:25:133
276489940,3cyclictest7615-21irqstats22:20:163
276489940,3cyclictest7503-21ssh23:40:113
276489940,3cyclictest6031-21sed19:30:003
276489940,3cyclictest3591-21ssh23:05:353
276489940,3cyclictest27772-21/usr/sbin/munin23:50:153
276489940,3cyclictest23721-21cat21:10:013
276489940,3cyclictest23504-21diskmemload21:40:203
276489940,3cyclictest23370-21sh22:12:033
276489940,3cyclictest21259-21cat21:40:013
276489940,3cyclictest0-21swapper/323:10:203
276489940,1cyclictest24062-21fschecks_count23:00:163
276489940,1cyclictest22757-21sh23:31:023
276489940,0cyclictest0-21swapper/300:25:313
276449944,0cyclictest31-21ksoftirqd/222:05:122
276449944,0cyclictest31-21ksoftirqd/200:35:132
276449944,0cyclictest0-21swapper/223:13:432
276449944,0cyclictest0-21swapper/223:02:222
276449944,0cyclictest0-21swapper/222:14:562
276449943,1cyclictest57150irq/125-eth022:45:122
276449942,2cyclictest802-21snmpd22:21:382
276449941,3cyclictest5073-21awk00:10:172
276449941,1cyclictest802-21snmpd21:26:232
276449940,4cyclictest3784-21ntp_states21:15:192
276449940,4cyclictest29432-21perl22:15:142
276449940,4cyclictest26408-21df_inode00:05:162
276449940,4cyclictest0-21swapper/223:53:222
276449940,4cyclictest0-21swapper/223:37:372
276449940,4cyclictest0-21swapper/223:16:522
276449940,4cyclictest0-21swapper/222:50:142
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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