You are here: Home / Projects / OSADL QA Farm Real-time / Latency plots / 
2025-12-02 - 05:45
Click here to display the system's profile data or here to proceed to next system.
Click on a legend element to toggle display of that core, ctrl-click inverts display, shift-click enables all.

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
Characteristics of the 20 highest latencies:
System rackbslot1.osadl.org (updated Mon Dec 01, 2025 12:44:43)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
13504262218175,32sleep00-21swapper/007:09:070
13504812216189,17sleep30-21swapper/307:09:433
13502012207183,15sleep10-21swapper/107:06:201
13501922193169,14sleep20-21swapper/207:06:132
143910721110,1sleep01439109-21cron08:35:000
1350708996458,5cyclictest1648311-21/usr/share/muni11:55:122
1350705996147,13cyclictest1486307-21kworker/u8:2+flush-179:010:05:371
1350705996147,13cyclictest1486307-21kworker/u8:2+flush-179:010:05:371
1350705996056,3cyclictest1423558-21kworker/u8:1+flush-179:008:45:261
1350705995956,2cyclictest1637551-21kworker/u8:2+events_unbound11:50:391
1350713995852,5cyclictest76405-21systemd-journal08:00:003
1350708995854,3cyclictest1595671-21kworker/u8:4+flush-179:011:35:322
1350705995852,2cyclictest1595671-21kworker/u8:4+events_unbound11:10:301
1350708995752,4cyclictest1689634-21/usr/share/muni12:35:092
1350708995749,2cyclictest1595671-21kworker/u8:4+flush-179:011:15:222
1350708995653,2cyclictest1486307-21kworker/u8:2+events_unbound10:08:202
1350708995653,2cyclictest1486307-21kworker/u8:2+events_unbound10:08:202
1350708995653,2cyclictest1339674-21kworker/u8:5+flush-179:009:30:122
135071399559,45cyclictest1528119-21kworker/u8:1+efi_rts_wq10:08:223
135071399559,45cyclictest1528119-21kworker/u8:1+efi_rts_wq10:08:223
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

Valid XHTML 1.0 Transitional