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2021-07-26 - 19:31

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 20 highest latencies:
System rack5slot7.osadl.org (updated Mon Jul 26, 2021 12:44:40)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1881224212183,184sleep00-21swapper06:55:020
2385211590,4sleep0690-1kworker/u3:206:58:340
24029910528,65cyclictest0-21swapper07:29:240
24029910419,64cyclictest11182-21fw_conntrack09:54:310
24029910415,24cyclictest22986-21/usr/sbin/munin12:05:090
24029910413,50cyclictest8330-21ls09:45:360
24029910319,43cyclictest17756-21irqstats11:49:450
24029910317,64cyclictest30100-21users12:25:440
24029910220,61cyclictest7790-21ntp_states11:20:070
24029910213,66cyclictest9499-21ntpq11:25:120
24029910211,69cyclictest26916-21aten_r5power_po09:04:000
24029910117,47cyclictest1365-21users11:00:430
24029910116,69cyclictest0-21swapper10:09:460
24029910116,65cyclictest28965-21munin-run12:23:300
24029910112,25cyclictest30055-21/usr/sbin/munin09:14:300
24029910026,56cyclictest0-21swapper11:05:220
24029910018,23cyclictest4654-21memory09:34:590
24029910016,24cyclictest21558-21ssh10:25:010
2402999934,48cyclictest0-21swapper08:04:480
2402999926,65cyclictest0-21swapper07:59:580
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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