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2026-05-06 - 18:04
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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 rack8slot4.osadl.org (updated Wed May 06, 2026 12:44:39)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
23506792227168,19sleep30-21swapper/307:09:093
23504322227167,19sleep10-21swapper/107:05:381
23506992221165,45sleep50-21swapper/507:09:285
23505022220161,18sleep60-21swapper/607:06:396
23507072219191,18sleep40-21swapper/407:09:354
23504292216185,20sleep70-21swapper/707:05:367
23506872214186,18sleep20-21swapper/207:09:172
23483792206177,19sleep00-21swapper/007:05:040
235094699350,35cyclictest2365504-21907:35:013
235095499332,30cyclictest2357111-21sh07:20:017
235095499330,31cyclictest2454685-21true10:15:017
235094899330,28cyclictest0-21swapper/412:15:014
235095299320,4cyclictest2446284-21cron10:00:016
235095299320,31cyclictest2497030-21apt-get11:30:146
235094099320,31cyclictest2360348-21apt-get07:25:141
2350952993126,4cyclictest2415630-21cron09:05:016
235094699310,30cyclictest2404908-21apt-get08:45:133
2350954993025,4cyclictest2371105-21true07:45:017
235095499300,29cyclictest2401659-21cron08:40:017
235095499300,1cyclictest0-21swapper/712:00:157
235095499300,1cyclictest0-21swapper/712:00:157
235095299300,2cyclictest2488195-21cron11:15:016
235095299300,1cyclictest374-21systemd-journal07:35:006
2350948993027,3cyclictest290-21plymouthd12:25:014
2350948993027,3cyclictest0-21swapper/408:00:154
235094899300,30cyclictest0-21swapper/408:10:014
235094699300,30cyclictest2443506-21cron09:55:023
2350942993027,2cyclictest2513693-21pool-spawner12:00:042
2350942993027,2cyclictest2513693-21pool-spawner12:00:042
2350942993027,2cyclictest2426788-21munin-run09:25:022
2350942993026,3cyclictest1-21systemd10:30:002
235094299300,2cyclictest2504942-21cron11:45:012
235094299300,29cyclictest0-21swapper/210:10:152
235094299300,29cyclictest0-21swapper/209:40:052
235093799300,2cyclictest2513268-21unix_chkpwd12:00:010
235093799300,2cyclictest2513268-21unix_chkpwd12:00:010
2350954992927,1cyclictest0-21swapper/709:10:017
2350954992924,4cyclictest2533269-21apt-get12:35:157
235095499290,28cyclictest0-21swapper/711:10:147
235095499290,28cyclictest0-21swapper/710:20:037
235095499290,28cyclictest0-21swapper/709:10:157
2350952992927,1cyclictest2396553-21apt-get08:30:146
235095299290,28cyclictest2524932-21apt-get12:20:156
235095299290,28cyclictest0-21swapper/612:25:136
235095299290,28cyclictest0-21swapper/612:10:156
235095299290,28cyclictest0-21swapper/610:45:166
235095299290,28cyclictest0-21swapper/610:10:156
235095299290,28cyclictest0-21swapper/610:05:146
235095299290,28cyclictest0-21swapper/609:05:146
235095299290,28cyclictest0-21swapper/607:45:156
235095299290,1cyclictest2410026-21apt-get08:55:056
235095299290,1cyclictest0-21swapper/609:40:026
2350951992927,1cyclictest0-21swapper/507:15:015
235095199290,28cyclictest0-21swapper/512:00:165
235095199290,28cyclictest0-21swapper/512:00:155
235095199290,28cyclictest0-21swapper/511:50:145
235095199290,28cyclictest0-21swapper/511:25:145
235095199290,28cyclictest0-21swapper/510:35:155
235095199290,28cyclictest0-21swapper/509:35:025
235095199290,28cyclictest0-21swapper/508:35:145
235095199290,1cyclictest0-21swapper/508:05:145
2350948992925,3cyclictest2404908-21apt-get08:45:144
2350948992924,4cyclictest2457738-21tar10:20:004
235094899290,29cyclictest0-21swapper/411:30:014
235094899290,28cyclictest2421635-21apt-get09:15:154
235094899290,28cyclictest0-21swapper/411:50:014
235094899290,28cyclictest0-21swapper/411:15:024
235094899290,1cyclictest2488538-21date11:15:004
235094899290,1cyclictest2410017-21cron08:55:014
235094699290,28cyclictest0-21swapper/312:35:153
235094699290,28cyclictest0-21swapper/311:25:133
235094699290,1cyclictest2457944-21apt-get10:20:143
235094699290,1cyclictest0-21swapper/312:15:153
235094699290,1cyclictest0-21swapper/310:15:013
235094699290,1cyclictest0-21swapper/309:20:153
2350942992928,1cyclictest0-21swapper/211:30:142
2350942992927,1cyclictest2460275-21cron10:25:012
2350942992927,1cyclictest0-21swapper/210:35:032
2350942992926,2cyclictest374-21systemd-journal08:25:012
235094299290,28cyclictest0-21swapper/212:35:152
235094299290,28cyclictest0-21swapper/211:20:152
235094299290,28cyclictest0-21swapper/209:25:152
235094299290,28cyclictest0-21swapper/208:35:152
235094299290,28cyclictest0-21swapper/208:30:142
2350940992928,1cyclictest0-21swapper/110:35:021
235094099290,28cyclictest0-21swapper/111:40:131
235094099290,28cyclictest0-21swapper/109:40:121
235094099290,28cyclictest0-21swapper/109:35:021
235094099290,28cyclictest0-21swapper/109:05:151
235094099290,1cyclictest0-21swapper/110:25:131
235093799290,28cyclictest0-21swapper/010:55:010
235093799290,28cyclictest0-21swapper/009:45:140
235093799290,28cyclictest0-21swapper/007:25:130
235093799290,28cyclictest0-21swapper/007:20:140
235093799290,1cyclictest0-21swapper/011:45:000
2350954992828,0cyclictest0-21swapper/710:50:137
2350954992828,0cyclictest0-21swapper/707:20:147
2350954992827,1cyclictest0-21swapper/709:00:147
2350954992827,1cyclictest0-21swapper/708:30:017
2350954992824,3cyclictest2446282-21sh10:00:027
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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