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2025-12-08 - 22:13
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Data to construct the above plot have been generated using the RT test utility cyclictest.

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 rackbslot2.osadl.org (updated Mon Dec 08, 2025 12:45:21)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
36464342230177,19sleep00-21swapper/007:09:460
36462592230199,20sleep10-21swapper/107:07:301
36460632222193,20sleep30-21swapper/307:05:363
36464002220189,20sleep20-21swapper/207:09:202
3646627996256,3cyclictest3886038-21munin-node11:45:021
3646627995953,4cyclictest3885706-21latency_hist11:45:011
3646622995852,2cyclictest3707503-21kworker/u8:2+flush-179:008:30:140
3646622995751,4cyclictest3932861-21latency_hist12:40:010
3646622995747,8cyclictest3720677-21kworker/u8:4+events_unbound09:00:050
3646622995344,8cyclictest3595740-21kworker/u8:1+events_unbound08:00:230
3646622995147,3cyclictest3685763-21kworker/u8:4+events_unbound07:55:140
3646622994941,7cyclictest3780626-21kworker/u8:0+events_unbound10:15:250
3646635994742,4cyclictest47022-21systemd-journal08:10:023
3646635994742,4cyclictest47022-21systemd-journal08:10:013
364663099460,2cyclictest3668132-31munin-graph07:31:592
3646622994643,2cyclictest3656494-21kworker/u8:0+flush-179:007:20:120
3646635994540,4cyclictest3716547-21munin-update08:30:033
3646635994532,2cyclictest3833504-21kworker/u8:1+flush-179:011:15:103
3646630994532,2cyclictest2880511-1kworker/2:1H+kblockd07:40:252
3646630994438,4cyclictest3903215-21/usr/share/muni12:05:052
3646622994440,3cyclictest3707503-21kworker/u8:2+flush-179:008:40:150
3646630994336,6cyclictest3876536-21kworker/2:2+pm11:50:002
3646635994238,2cyclictest3833842-21snmp_ryswitch2.10:45:023
3646635994237,4cyclictest3881608-21/usr/share/muni11:40:153
3646630994238,3cyclictest3748763-21apt-get09:05:132
3646622994238,3cyclictest3780626-21kworker/u8:0+flush-179:009:50:050
3646622994234,7cyclictest3595740-21kworker/u8:1+events_unbound07:35:140
3646635994136,3cyclictest3781087-21/usr/share/muni09:45:013
3646630994138,2cyclictest3785244-21kworker/2:1+pm10:10:112
3646630994135,5cyclictest1318-21snmpd11:16:162
3646630994134,5cyclictest2880511-1kworker/2:1H+kblockd09:15:112
3646622994136,4cyclictest3745019-21kworker/u8:1+flush-179:009:05:160
3646635994037,2cyclictest3780626-21kworker/u8:0+flush-179:010:00:263
3646635994036,3cyclictest3720677-21kworker/u8:4+flush-179:009:00:123
3646630994038,1cyclictest3890215-21kworker/2:1+pm11:51:402
3646630994037,2cyclictest3591575-21kworker/2:0+pm08:41:262
3646630994037,2cyclictest3591575-21kworker/2:0+pm07:45:162
3646630994032,6cyclictest3669050-21/usr/share/muni07:35:012
3646630994031,8cyclictest2880511-1kworker/2:1H+kblockd11:35:082
364663099400,2cyclictest3694392-31munin-graph08:01:522
3646622994036,3cyclictest3707503-21kworker/u8:2+flush-179:008:50:050
3646622994036,3cyclictest3595740-21kworker/u8:1+flush-179:007:50:150
3646622994032,7cyclictest3739815-21kworker/u8:0+events_unbound09:15:140
3646622994032,7cyclictest3595740-21kworker/u8:1+events_unbound07:45:230
38727472390,2sleep03872738-21/usr/share/muni11:30:010
3646635993936,2cyclictest3780626-21kworker/u8:0+flush-179:010:15:283
3646630993937,1cyclictest3890215-21kworker/2:1+pm12:16:142
3646630993937,1cyclictest3810960-21kworker/2:2+pm10:26:452
3646630993937,1cyclictest3785244-21kworker/2:1+pm09:55:102
3646630993936,2cyclictest3810960-21kworker/2:2+pm10:51:282
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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