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2021-12-07 - 06:18

Intel(R) Atom(TM) CPU E640 @ 1.00GHz, Linux 3.18.11-rt7 (Profile)

Latency plot of system in rack #9, 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, lowest P state: performance
Compare latency of primary with shadow system
Characteristics of the 20 highest latencies:
System rack9slot4.osadl.org (updated Tue Dec 07, 2021 00:43:38)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
20393113197sleep0-21swapper/103:09:541
20562991233cyclictest3442-21cat08:10:050
20562991178cyclictest0-21swapper/005:50:010
20562991163cyclictest16802-21wc07:25:030
20562991153cyclictest30400-21/usr/sbin/munin06:40:200
20562991148cyclictest0-21swapper/003:34:560
205629911472cyclictest6950irq/18-mmc007:55:210
205629911365cyclictest0-21swapper/003:50:140
20562991127cyclictest0-21swapper/007:19:200
20340111173sleep0-21swapper/003:09:490
20562991109cyclictest0-21swapper/006:00:320
20562991109cyclictest0-21swapper/005:30:270
20562991104cyclictest7859-21latency_hist08:20:050
20562991104cyclictest1-21systemd03:10:430
20562991098cyclictest0-21swapper/006:37:080
20562991088cyclictest0-21swapper/006:15:280
205629910815cyclictest22329-21ssh06:20:200
205629910811cyclictest8233-21ssh08:20:220
20562991079cyclictest0-21swapper/004:00:330
205629910759cyclictest74-21mmcqd/007:55:040
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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