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2024-07-16 - 08:43
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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 50 highest latencies:
System rack8slot4.osadl.org (updated Mon Jul 15, 2024 12:44:44)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
30137662232175,18sleep70-21swapper/707:06:597
30137262224163,19sleep50-21swapper/507:06:255
30158442217189,18sleep40-21swapper/407:08:574
30137002217162,17sleep60-21swapper/607:06:026
30158702216186,19sleep30-21swapper/307:09:193
30136872212184,18sleep20-21swapper/207:05:492
30136572212178,22sleep10-21swapper/107:05:251
30158962209182,17sleep00-21swapper/007:09:410
3016136994745,1cyclictest0-21swapper/112:10:011
301615099360,30cyclictest3136428-21sh10:50:024
301613699340,29cyclictest3182867-21debian-sa112:15:011
301615699310,3cyclictest3038537-21sh07:50:006
301614699310,30cyclictest3172098-21idleruntime-cro11:55:003
3016141993129,1cyclictest0-21swapper/207:15:002
3016135993128,2cyclictest367-21systemd-journal09:30:020
301613599310,30cyclictest3188259-21sh12:25:010
301615899300,29cyclictest3174798-21munin-run12:00:017
301615899300,29cyclictest3144556-21idleruntime-cro11:05:017
301615899300,29cyclictest3093254-21munin-run09:30:027
301615699300,29cyclictest3074103-21sh08:55:016
301615699300,29cyclictest3074103-21sh08:55:016
301615299300,29cyclictest3046888-21idleruntime-cro08:05:005
3016146993027,2cyclictest3082205-21munin-run09:10:023
301614699300,29cyclictest3126224-21apt-get10:32:123
3016136993027,2cyclictest3133736-21sh10:45:011
3016136993026,3cyclictest3027746-21cron07:30:011
301613699300,29cyclictest3161069-21dump-pmu-power11:35:001
3016158992927,1cyclictest3185551-21sh12:20:017
301615899290,28cyclictest0-21swapper/711:37:107
301615899290,28cyclictest0-21swapper/709:57:107
301615899290,28cyclictest0-21swapper/707:57:127
301615899290,1cyclictest0-21swapper/712:27:137
3016156992927,1cyclictest3128914-21apt-get10:37:136
3016156992927,1cyclictest0-21swapper/612:15:016
301615699290,28cyclictest3191783-21apt-get12:32:106
301615699290,1cyclictest0-21swapper/608:30:026
3016152992928,1cyclictest0-21swapper/511:02:155
3016152992927,1cyclictest3033737-21apt-get07:42:155
301615299290,28cyclictest0-21swapper/511:32:115
3016150992927,1cyclictest3080074-21apt-get09:07:124
3016150992926,2cyclictest3144558-21latency_hist11:05:014
301615099290,28cyclictest0-21swapper/409:42:124
301615099290,28cyclictest0-21swapper/408:22:124
3016146992927,1cyclictest0-21swapper/308:40:013
3016146992926,2cyclictest3068697-21apt08:45:013
301614699290,1cyclictest3147276-21basename11:10:013
3016141992927,1cyclictest0-21swapper/209:25:022
301614199290,28cyclictest3038574-21awk07:50:012
301614199290,28cyclictest0-21swapper/210:07:152
301614199290,28cyclictest0-21swapper/208:17:112
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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