You are here: Home / Projects / QA Farm Realtime / Latency plots / 
2022-01-23 - 10:37

ARMv7 Processor rev 5 (v7l), Linux 4.16.15-rt7 (Profile)

Latency plot of system in rack #5, slot #7
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, lowest P state: performance
Compare latency of primary with shadow system
Characteristics of the 10 highest latencies:
System rack5slot7.osadl.org (updated Sun Jan 23, 2022 00:44:14)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
19804224432198,96sleep00-21swapper18:46:270
201779916617,46cyclictest15360-21df_inode21:05:300
201779916415,45cyclictest11604-21apt-get20:54:550
201779916414,64cyclictest23893-21ssh21:30:400
201779916414,61cyclictest27838-21users21:41:240
201779916316,21cyclictest27207-21memory23:15:570
201779916313,63cyclictest4632-21apt-get22:09:580
201779916217,23cyclictest1241-21apt-get21:59:520
201779916013,57cyclictest6333-21apt-get22:14:580
201779916011,56cyclictest11635-21/usr/sbin/munin00:05:450
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

Valid XHTML 1.0 Transitional