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2025-11-20 - 19:01
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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 20 highest latencies:
System rackbslot2.osadl.org (updated Thu Nov 20, 2025 12:44:43)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
20975132223194,19sleep10-21swapper/107:07:461
20974442221192,19sleep20-21swapper/207:06:502
20976212220192,18sleep00-21swapper/007:09:090
20975102220190,20sleep30-21swapper/307:07:443
221126821320,1sleep22211258-21snmp_wlanswitch09:20:032
209783899990,60cyclictest2129408-21/usr/share/muni07:45:011
2097838996811,56cyclictest2141717-21kworker/u8:0+efi_rts_wq09:19:341
2097848996320,41cyclictest427-21jbd2/mmcblk0p2-811:45:003
209784299584,53cyclictest2141717-21kworker/u8:0+efi_rts_wq09:19:312
209784899557,48cyclictest2141717-21kworker/u8:0+efi_rts_wq09:19:333
2097842995350,2cyclictest2267140-21kworker/u8:1+flush-179:012:10:132
2097835995149,1cyclictest2180824-13chrome08:45:010
2097835994744,2cyclictest2285138-21Chrome_ChildIOT10:45:020
2097838994542,2cyclictest2307572-21cat11:10:081
2097835994541,3cyclictest2300062-21apt-get11:00:150
209783899443,39cyclictest2337347-21chrome11:45:001
2097835994441,2cyclictest2317825-21awk11:20:150
2097848994338,3cyclictest2129086-21latency_hist07:45:013
2097842994339,3cyclictest2328202-21kworker/u8:0+flush-179:011:55:072
2097842994339,3cyclictest2291682-21cat10:50:152
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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