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2023-02-06 - 14:36

ARM Freescale i.MX6UL @528 MHz, 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 Feb 06, 2023 12:44:13)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
22416223760,11sleep022188-1kworker/u3:106:26:340
231939917037,113cyclictest21502-21unixbench_singl10:42:360
231939917020,27cyclictest11869-21memory11:52:140
231939917020,124cyclictest11903-21users08:21:560
231939916919,126cyclictest8389-21df_inode11:41:420
231939916917,127cyclictest12995-21apt-get11:56:160
231939916916,23cyclictest26405-21apt-get09:21:010
231939916916,131cyclictest10640-21memory08:16:380
231939916817,23cyclictest28083-21apt-get09:26:090
231939916816,127cyclictest6348-21apt-get11:36:050
231939916815,129cyclictest1303-21aten_r5power_po07:26:080
231939916719,123cyclictest17777-21memory10:32:050
231939916718,25cyclictest3497-21ssh09:49:090
231939916718,126cyclictest4202-21df09:51:330
231939916718,125cyclictest8815-21munin-run10:05:440
231939916717,25cyclictest28861-21apt-get11:06:080
231939916716,127cyclictest1385-21apt-get11:21:060
231939916712,113cyclictest19975-21ssh08:55:500
231939916616,125cyclictest27209-21/usr/sbin/munin11:01:410
231939916616,123cyclictest13938-21apt-get10:21:060
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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