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2025-11-25 - 11:28
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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 Mon Nov 24, 2025 12:44:42)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
29257012256200,20sleep30-21swapper/307:06:403
29259322236185,40sleep20-21swapper/207:09:412
29257612235182,20sleep00-21swapper/007:07:250
29257142227198,19sleep10-21swapper/107:06:511
31461752580,2sleep23146164-31munin-html11:20:342
2926153995149,1cyclictest3015822-21awk08:50:163
2926150995045,4cyclictest3041093-21ntpq09:20:142
292614799480,47cyclictest0-21swapper/107:25:141
2926143994844,3cyclictest2986437-21kworker/u8:0+flush-179:008:25:290
2926153994644,1cyclictest0-21swapper/311:45:013
2926153994642,3cyclictest3051217-21kworker/u8:0+flush-179:009:45:093
2926153994640,4cyclictest2930301-21latency_hist07:15:003
2926147994642,3cyclictest2995461-21/usr/share/muni08:30:011
2926153994440,3cyclictest3094665-21kworker/u8:4+flush-179:010:55:143
2926147994438,5cyclictest3022824-21ntpq09:00:101
2926143994339,3cyclictest3006677-21apt-get08:40:160
2926150994238,3cyclictest2978310-21/usr/share/muni08:10:042
2926150994138,2cyclictest0-21swapper/209:45:022
2926147994135,4cyclictest47022-21systemd-journal10:20:011
2926153994035,4cyclictest2943738-21kworker/u8:2+events_unbound07:45:163
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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