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2025-12-11 - 17:29
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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 Thu Dec 11, 2025 12:44:43)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1601542229168,20sleep10-21swapper/107:07:501
1580652227169,18sleep00-21swapper/007:05:400
1601942226168,19sleep30-21swapper/307:08:243
1580622222168,17sleep60-21swapper/607:05:386
1602882221188,21sleep40-21swapper/407:09:464
1602252221167,17sleep70-21swapper/707:08:527
1580762213181,21sleep20-21swapper/207:05:502
1600482211184,17sleep50-21swapper/507:06:175
16050599340,6cyclictest0-21swapper/308:30:003
16050599330,32cyclictest0-21swapper/308:30:533
16050099320,3cyclictest296360-21cron11:20:001
16051599310,30cyclictest3820478-21systemd-journal10:40:015
16051599310,30cyclictest290989-21latency_hist11:10:005
16051599310,30cyclictest259129-21apt-get10:10:545
16050599310,0cyclictest0-21swapper/309:55:543
16052399300,29cyclictest250890-21date09:55:017
16052399300,29cyclictest166458-21cron07:20:007
16051899300,29cyclictest338064-21apt-get12:35:576
16051099300,29cyclictest285585-21sh11:00:004
160505993028,2cyclictest0-21swapper/312:10:543
160505993027,3cyclictest0-21swapper/309:20:543
160505993027,2cyclictest0-21swapper/308:50:543
160505993027,2cyclictest0-21swapper/308:50:543
16050599300,29cyclictest253757-21http10:00:543
16050599300,29cyclictest0-21swapper/309:13:123
16049899300,29cyclictest0-21swapper/008:25:000
16051899290,28cyclictest0-21swapper/612:05:566
16051599290,29cyclictest326549-21munin-run12:15:005
16051599290,28cyclictest335373-21apt-get12:30:545
16051599290,28cyclictest0-21swapper/512:05:565
16051599290,1cyclictest204953-21apt-get08:30:545
160510992927,1cyclictest0-21swapper/410:50:004
16051099290,28cyclictest0-21swapper/407:15:564
160505992927,1cyclictest0-21swapper/311:20:543
160505992926,3cyclictest0-21swapper/311:10:543
16050599290,28cyclictest0-21swapper/311:15:553
160503992928,1cyclictest0-21swapper/212:00:552
160503992927,1cyclictest0-21swapper/211:25:002
16050399290,28cyclictest0-21swapper/212:20:532
16050399290,28cyclictest0-21swapper/212:00:002
16050399290,28cyclictest0-21swapper/210:35:012
16050399290,28cyclictest0-21swapper/210:25:562
16050399290,28cyclictest0-21swapper/207:20:542
16050399290,1cyclictest0-21swapper/207:35:552
160500992928,1cyclictest311rcuc/112:10:541
16050099290,28cyclictest0-21swapper/110:25:561
16050099290,28cyclictest0-21swapper/109:45:551
16050099290,28cyclictest0-21swapper/107:25:531
16050099290,28cyclictest0-21swapper/107:10:541
160498992927,1cyclictest329992-21apt-get12:20:530
16049899290,29cyclictest0-21swapper/011:50:550
16049899290,28cyclictest0-21swapper/011:15:550
16049899290,28cyclictest0-21swapper/009:00:540
16049899290,28cyclictest0-21swapper/008:25:550
160518992827,1cyclictest160873-21apt-get07:10:536
160518992827,1cyclictest0-21swapper/610:15:546
16051899280,27cyclictest0-21swapper/611:25:546
16051899280,0cyclictest0-21swapper/611:40:546
160515992827,1cyclictest293671-21sh11:15:005
160515992827,1cyclictest0-21swapper/507:30:545
160515992825,2cyclictest188032-21latency_hist08:00:005
16051599280,27cyclictest0-21swapper/508:20:535
16051599280,1cyclictest0-21swapper/508:15:005
160505992823,4cyclictest0-21swapper/310:45:013
16050599280,0cyclictest0-21swapper/311:55:553
160503992827,1cyclictest0-21swapper/207:10:532
160503992826,1cyclictest0-21swapper/212:05:562
16050399280,0cyclictest0-21swapper/210:05:552
160500992827,1cyclictest0-21swapper/112:30:541
160500992827,1cyclictest0-21swapper/108:20:531
160500992826,1cyclictest207646-21apt-get08:35:551
16050099280,0cyclictest0-21swapper/107:20:541
160498992827,1cyclictest0-21swapper/010:55:530
160498992827,1cyclictest0-21swapper/009:10:540
160498992827,1cyclictest0-21swapper/009:05:540
160498992826,1cyclictest267229-21http10:25:560
160498992826,1cyclictest0-21swapper/010:20:540
16049899280,28cyclictest0-21swapper/007:35:000
16049899280,27cyclictest0-21swapper/012:25:560
16049899280,0cyclictest0-21swapper/007:25:540
160523992727,0cyclictest0-21swapper/712:25:567
160523992727,0cyclictest0-21swapper/711:35:597
160523992727,0cyclictest0-21swapper/707:35:547
160523992725,1cyclictest0-21swapper/708:50:547
160523992725,1cyclictest0-21swapper/708:50:547
160518992727,0cyclictest0-21swapper/611:20:546
160518992727,0cyclictest0-21swapper/608:05:526
160515992727,0cyclictest0-21swapper/507:45:555
160515992726,1cyclictest0-21swapper/511:00:545
160515992726,1cyclictest0-21swapper/508:45:555
160515992725,1cyclictest0-21swapper/509:45:005
160510992727,0cyclictest0-21swapper/409:55:544
160510992726,1cyclictest0-21swapper/409:10:544
160510992726,1cyclictest0-21swapper/407:40:544
16051099270,0cyclictest0-21swapper/410:50:534
16051099270,0cyclictest0-21swapper/407:25:544
160505992727,0cyclictest0-21swapper/312:35:563
160503992727,0cyclictest0-21swapper/212:10:542
160503992726,1cyclictest0-21swapper/211:30:552
16050399270,0cyclictest0-21swapper/211:20:002
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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