You are here: Home / Projects / OSADL QA Farm Real-time / Latency plots / 
2022-07-03 - 04:45

x86 Intel Atom x6425RE @1900 MHz, Linux 5.17.0-rt15 (Profile)

Latency plot of system in rack #e, slot #4
Data to construct the above plot have been generated using the RT test utility cyclictest.
Command line: cyclictest -l100000000 -m -Sp99 -i200 -h400 -q done
Total number of samples: 100 million
Resolution of latency scale: normal
Duration: 5 hours, 33 minutes, lowest P state: performance
Characteristics of the 10 highest latencies:
System rackeslot4.osadl.org (updated Fri Jul 01, 2022 12:44:35)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2605858992722,3cyclictest2698376-21kworker/u8:010:15:160
2605861992622,4cyclictest2682419-21kworker/u8:209:30:471
2605858992623,2cyclictest2746945-21kworker/u8:011:30:560
260585899261,22cyclictest246-21systemd-journal11:30:000
260587199252,21cyclictest2622255-21apt-get07:35:113
260587199251,21cyclictest2683359-21apt-get09:30:433
2605858992522,2cyclictest2640848-21kworker/u8:108:01:160
260587199241,21cyclictest2732403-21apt-get11:05:113
2605866992420,2cyclictest2756965-21apt-get11:35:112
260586699241,21cyclictest2631687-21apt-get07:45:112
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

Valid XHTML 1.0 Transitional