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2023-03-22 - 23:29

RISC-V RVBoards D1 @1000 MHz, Linux 5.16.0-rt19 (Profile)

Latency plot of system in rack #3, slot #2
Data to construct the above plot have been generated using the RT test utility cyclictest.
Command line: cyclictest -l50000000 -m -n -a0 -t1 -p99 -i400 -h400 -q
Total number of samples: 50 million
Resolution of latency scale: normal
Duration: 5 hours, 33 minutes
Characteristics of the 20 highest latencies:
System rack3slot2.osadl.org (updated Wed Mar 22, 2023 12:44:40)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
403088322560,3sleep04030884-21cat0
407898822390,2sleep04078990-21latency0
407047222340,4chrt4070473-21ssh0
402074822320,3sleep04020752-21idleruntime-cro0
408824522170,2sleep04088246-21systemctl0
403612522070,3sleep04036126-21ssh0
399816099206174,20cyclictest4038928-21kworker/u2:30
399816099205174,19cyclictest4004796-21kworker/u2:10
404405321980,3sleep04044054-21plymouth0
403317621930,3sleep04033175-21dpkg0
399816099192164,18cyclictest4072520-21kworker/u2:10
401145121880,3sleep04011450-21sh0
406879221860,3sleep04068790-21ntp_offset0
399816099184152,19cyclictest4041452-21kworker/u2:20
406111321830,3chrt4061073-21apt-get0
399816099181151,18cyclictest4072520-21kworker/u2:10
399816099181150,19cyclictest4030190-21kworker/u2:10
399816099179149,19cyclictest3990300-21kworker/u2:00
399816099177148,18cyclictest4028726-21kworker/u2:00
399816099175145,19cyclictest3990300-21kworker/u2:00
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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