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2026-06-13 - 11:24
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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 Jun 13, 2026 00:44:41)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
81242208192,11sleep10-21swapper/119:09:481
81032196178,13sleep00-21swapper/019:09:310
78232195179,12sleep30-21swapper/319:05:573
59162151134,13sleep20-21swapper/219:05:072
7642540,0sleep30-21swapper/323:45:563
86702440,0sleep28672-21unixbench-2d22:30:182
19792110,0sleep10-21swapper/120:00:111
9599290,1sleep30-21swapper/321:43:553
22055280,0sleep20-21swapper/221:18:242
83489963,2cyclictest32059-21ssh23:30:103
83489960,5cyclictest0-21swapper/323:10:093
83439960,6cyclictest0-21swapper/220:55:122
83389960,3cyclictest23334-21perf21:35:010
17131260,0sleep10-21swapper/119:25:121
83489955,0cyclictest10891-21kworker/3:023:58:003
83489955,0cyclictest10891-21kworker/3:022:28:273
83489952,2cyclictest25743-21ssh22:55:123
83489950,5cyclictest0-21swapper/323:08:123
83489950,5cyclictest0-21swapper/322:43:113
83489950,5cyclictest0-21swapper/322:05:113
83489950,0cyclictest29962-21nscd00:04:483
83489950,0cyclictest0-21swapper/322:00:503
83489950,0cyclictest0-21swapper/300:38:503
83439955,0cyclictest0-21swapper/222:36:532
83439951,1cyclictest29895-21grep22:25:142
83439950,5cyclictest15974-21apt-get00:10:012
83439950,5cyclictest0-21swapper/223:35:132
83439950,4cyclictest0-21swapper/219:20:022
83439950,3cyclictest9308-21dump-pmu-power23:35:002
83439950,1cyclictest0-21swapper/220:50:102
83399951,2cyclictest0-21swapper/120:35:101
83399950,5cyclictest0-21swapper/122:49:311
83399950,5cyclictest0-21swapper/100:00:301
83389954,1cyclictest0-21swapper/023:03:180
83389954,1cyclictest0-21swapper/021:11:070
83389950,5cyclictest0-21swapper/023:59:190
83389950,5cyclictest0-21swapper/023:45:100
83389950,5cyclictest0-21swapper/023:33:340
83389950,5cyclictest0-21swapper/022:15:090
83389950,5cyclictest0-21swapper/021:55:470
83389950,5cyclictest0-21swapper/021:55:470
83389950,5cyclictest0-21swapper/021:38:200
83389950,4cyclictest0-21swapper/022:55:120
83389950,0cyclictest0-21swapper/021:29:440
3823250,0sleep10-21swapper/122:12:271
83489944,0cyclictest8331-21ssh00:05:323
83489944,0cyclictest4133-21diskmemload23:50:073
83489944,0cyclictest10891-21kworker/3:023:02:043
83489944,0cyclictest10891-21kworker/3:022:39:413
83489944,0cyclictest10891-21kworker/3:020:47:413
83489944,0cyclictest10891-21kworker/3:020:02:553
83489944,0cyclictest10891-21kworker/3:019:29:203
83489944,0cyclictest10891-21kworker/3:019:18:083
83489944,0cyclictest0-21swapper/321:25:283
83489944,0cyclictest0-21swapper/300:23:173
83489943,1cyclictest22263-21df20:40:123
83489940,4cyclictest472-21memory21:00:143
83489940,4cyclictest0-21swapper/323:40:253
83489940,4cyclictest0-21swapper/323:25:513
83489940,4cyclictest0-21swapper/323:18:253
83489940,4cyclictest0-21swapper/322:50:123
83489940,4cyclictest0-21swapper/322:30:093
83489940,4cyclictest0-21swapper/322:22:513
83489940,4cyclictest0-21swapper/322:16:363
83489940,4cyclictest0-21swapper/322:10:233
83489940,4cyclictest0-21swapper/321:30:093
83489940,4cyclictest0-21swapper/321:10:113
83489940,4cyclictest0-21swapper/320:55:463
83489940,4cyclictest0-21swapper/319:50:273
83489940,4cyclictest0-21swapper/319:45:203
83489940,4cyclictest0-21swapper/300:25:113
83489940,3cyclictest6871-21apt20:10:113
83489940,3cyclictest5269-21apt-get22:45:113
83489940,3cyclictest28751-21ssh21:37:053
83489940,3cyclictest26164-21ssh21:20:143
83489940,3cyclictest2340-21expr21:05:143
83489940,3cyclictest14983-21/usr/sbin/munin21:15:133
83489940,3cyclictest11828-21date20:20:003
83489940,3cyclictest0-21swapper/300:10:003
83489940,0cyclictest0-21swapper/321:52:063
83439944,0cyclictest0-21swapper/221:24:512
83439944,0cyclictest0-21swapper/200:29:562
83439943,1cyclictest6026-21ssh00:05:152
83439943,1cyclictest4597-21/usr/sbin/munin21:10:142
83439943,1cyclictest27146-21cpuspeed19:45:112
83439943,1cyclictest24448-21cut00:30:122
83439943,1cyclictest23551-21grep19:35:202
83439942,2cyclictest20265-21kworker/2:123:12:372
83439942,1cyclictest802-21snmpd20:16:022
83439942,1cyclictest802-21snmpd20:01:412
83439942,1cyclictest802-21snmpd19:28:412
83439941,3cyclictest13450-21pmu-power21:45:182
83439941,2cyclictest802-21snmpd19:44:462
83439941,2cyclictest0-21swapper/222:00:102
83439941,2cyclictest0-21swapper/220:25:092
83439941,1cyclictest0-21swapper/222:45:122
83439940,4cyclictest20447-21apt-get22:05:112
83439940,4cyclictest0-21swapper/223:48:242
83439940,4cyclictest0-21swapper/223:25:112
83439940,4cyclictest0-21swapper/222:58:562
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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