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2021-07-26 - 18:43

VIA QuadCore L4700 @ 1.2+ GHz, Linux 3.18.43-rt46 (Profile)

Latency plot of system in rack #b, 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
Total number of samples: 100 million
Resolution of latency scale: normal
Duration: 5 hours, 33 minutes
Compare latency of primary with shadow system
Characteristics of the 20 highest latencies:
System rackbslot4.osadl.org (updated Thu Jun 10, 2021 12:43:35)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
40082760,3sleep04006-21grep11:32:040
415399643,56cyclictest0-21swapper/208:09:122
415399604,49cyclictest0-21swapper/211:56:072
415399594,48cyclictest0-21swapper/209:23:582
415399584,48cyclictest0-21swapper/212:22:252
415399573,49cyclictest0-21swapper/208:21:362
413299575,46cyclictest0-21swapper/010:32:470
415399555,27cyclictest0-21swapper/211:29:322
415399553,47cyclictest0-21swapper/210:05:342
415399553,46cyclictest0-21swapper/210:41:342
415399553,46cyclictest0-21swapper/210:41:342
4153995521,30cyclictest27619-21fschecks_time08:01:562
4153995521,30cyclictest27619-21fschecks_time08:01:562
415399552,47cyclictest31275-21ssh12:07:222
4153995516,7cyclictest11070-21sshd11:00:032
414199553,47cyclictest0-21swapper/108:48:111
36082557,16sleep30-21swapper/306:57:303
415399542,7cyclictest4464-21iostat_ios09:26:582
413299546,5cyclictest0-21swapper/010:23:070
388525410,16sleep20-21swapper/207:00:502
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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