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2023-05-31 - 02:58

x86 Intel Core i3-2310E @2100 MHz, Linux 5.10.47-rt46 (Profile)

Latency plot of system in rack #8, slot #2
Data to construct the above plot have been generated using the RT test utility cyclictest.
Unexpectedly long latencies may be caused by a total of 2 SMIs that occured during the measurement.
Command line: cyclictest -l100000000 -m -Sp99 -i200 -h400 --smi -q
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 10 highest latencies:
System rack8slot2.osadl.org (updated Wed May 31, 2023 00:43:39)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2311099129127,1cyclictest0-21swapper/319:10:113
2310999115113,1cyclictest0-21swapper/219:10:112
2310899112102,9cyclictest23145-21apt-get19:10:221
23107999492,1cyclictest0-21swapper/019:10:220
266872840,1sleep10-21swapper/121:25:431
88362670,4sleep1221ksoftirqd/123:20:341
2310999350,34cyclictest0-21swapper/221:30:242
193222270,1sleep3331rcuc/320:15:073
161462260,1sleep20-21swapper/221:15:302
2310899240,22cyclictest325482sleep122:40:261
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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