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2026-05-11 - 09:56
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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 11, 2026 00:44:41)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
157142202187,11sleep10-21swapper/119:08:241
155422200183,12sleep30-21swapper/319:06:133
157752198182,12sleep00-21swapper/019:09:110
158142172154,13sleep20-21swapper/219:09:412
133982510,0sleep00-21swapper/023:32:300
203892440,0sleep30-21swapper/323:04:383
137212440,0sleep10-21swapper/123:48:511
213722430,0sleep30-21swapper/323:20:193
311032410,0sleep10-21swapper/100:13:171
256382410,0sleep10-21swapper/122:35:131
148532410,0sleep214855-21fschecks_time00:05:142
212832340,0sleep10-21swapper/122:17:041
234122110,0sleep223414-21timerandwakeup23:05:212
160329993,3cyclictest16822-21munin-run20:15:000
160329991,4cyclictest9007-21perf23:15:000
7899280,0sleep10-21swapper/121:23:351
22381280,0sleep10-21swapper/121:15:061
160449960,6cyclictest0-21swapper/322:40:303
160449960,5cyclictest0-21swapper/322:55:113
160449960,5cyclictest0-21swapper/321:45:123
160449960,5cyclictest0-21swapper/319:45:013
160389960,6cyclictest13294-21cpu22:45:132
160329960,1cyclictest30928-21ssh23:40:440
1896250,0sleep20-21swapper/222:07:442
160449950,5cyclictest30363-21ssh23:56:353
160449950,5cyclictest0-21swapper/323:48:183
160449950,5cyclictest0-21swapper/321:21:033
160449950,4cyclictest9802-21diskstats21:40:143
160449950,4cyclictest29242-21apt-get21:50:013
160389955,0cyclictest31-21ksoftirqd/221:50:132
160389954,1cyclictest6222-21ssh00:00:252
160389954,1cyclictest31-21ksoftirqd/221:40:122
160389950,5cyclictest14625-21apt-get22:30:012
160389950,5cyclictest0-21swapper/223:19:032
160389950,5cyclictest0-21swapper/222:24:422
160389950,4cyclictest0-21swapper/220:00:122
160339950,5cyclictest0-21swapper/123:38:021
160339950,3cyclictest0-21swapper/122:20:131
160329951,4cyclictest21841-21sendmail-msp19:20:000
160329950,5cyclictest0-21swapper/022:36:000
160329950,5cyclictest0-21swapper/022:26:050
160329950,5cyclictest0-21swapper/021:15:400
160329950,4cyclictest19694-21ssh23:20:120
160449942,1cyclictest24026-21ssh00:10:033
160449942,1cyclictest12674-21ssh21:10:123
160449941,1cyclictest0-21swapper/321:05:143
160449941,1cyclictest0-21swapper/300:35:113
160449940,4cyclictest29443-21apt-get20:40:113
160449940,4cyclictest23493-21memory00:25:163
160449940,4cyclictest22139-21diskstats23:05:153
160449940,4cyclictest18363-21apt-get19:15:013
160449940,4cyclictest11633-21diskmemload23:17:493
160449940,4cyclictest11633-21diskmemload22:30:593
160449940,4cyclictest0-21swapper/323:10:033
160449940,4cyclictest0-21swapper/322:24:263
160449940,4cyclictest0-21swapper/322:15:123
160449940,4cyclictest0-21swapper/321:25:113
160449940,4cyclictest0-21swapper/321:18:003
160449940,4cyclictest0-21swapper/321:00:113
160449940,4cyclictest0-21swapper/320:45:123
160449940,4cyclictest0-21swapper/319:50:103
160449940,3cyclictest6884-21date21:00:003
160449940,3cyclictest4400-21cat20:55:003
160449940,3cyclictest437-21ssh21:35:193
160449940,3cyclictest29866-21chrt23:25:033
160449940,3cyclictest28364-21ssh22:05:123
160449940,3cyclictest28084-21ssh23:40:073
160449940,3cyclictest26868-21sort20:35:003
160449940,3cyclictest25716-21sh23:54:593
160449940,3cyclictest24116-21fschecks_time22:50:153
160449940,3cyclictest22848-21hddtemp_smartct20:25:153
160449940,3cyclictest21656-21df21:30:143
160449940,3cyclictest17760-21ssh23:35:013
160449940,3cyclictest16333-21tr19:10:123
160449940,3cyclictest13128-21ssh22:45:113
160449940,3cyclictest11839-21ssh00:20:013
160449940,1cyclictest10984-21grep20:00:193
160449940,0cyclictest0-21swapper/323:31:003
160449940,0cyclictest0-21swapper/322:03:413
160389944,0cyclictest0-21swapper/221:30:072
160389943,1cyclictest31-21ksoftirqd/219:15:012
160389943,1cyclictest24819-21df_inode00:10:142
160389943,1cyclictest0-21swapper/223:25:042
160389942,2cyclictest31-21ksoftirqd/223:45:182
160389942,2cyclictest15528-21ssh00:37:252
160389942,1cyclictest21266-21ssh23:36:022
160389942,1cyclictest14628-21cut20:10:112
160389941,3cyclictest9396-21apt-get21:05:142
160389941,3cyclictest0-21swapper/200:30:062
160389941,2cyclictest0-21swapper/221:15:142
160389940,4cyclictest7578-21chrt23:30:032
160389940,4cyclictest28316-21ssh23:40:152
160389940,4cyclictest22057-21apt-get19:20:102
160389940,4cyclictest16313-21ssh21:11:372
160389940,4cyclictest10213-21ssh21:55:322
160389940,4cyclictest0-21swapper/223:55:062
160389940,4cyclictest0-21swapper/222:15:122
160389940,4cyclictest0-21swapper/222:13:552
160389940,4cyclictest0-21swapper/222:03:092
160389940,4cyclictest0-21swapper/221:22:032
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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