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2022-11-28 - 10:06

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 all highest latencies:
System rack5slot7.osadl.org (updated Mon Nov 28, 2022 00:44:13)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
6208224570,12sleep01612-1kworker/u3:018:33:190
63319916919,125cyclictest23336-21apt-get21:54:330
63319916620,103cyclictest23166-21apt-get23:29:300
63319916539,107cyclictest7230-21munin-setwarn18:39:090
63319916517,121cyclictest2903-21apt-get20:54:290
63319916336,109cyclictest1447-21fw_conntrack22:25:060
63319916318,120cyclictest21473-21apt-get23:24:290
63319916318,120cyclictest14854-21apt-get21:29:370
63319916315,123cyclictest7258-21users21:05:560
63319916217,106cyclictest30224-21/usr/sbin/munin20:40:300
63319916216,120cyclictest6201-21apt-get22:39:360
63319916118,117cyclictest11290-21apt-get22:54:290
63319916117,119cyclictest21632-21apt-get21:49:270
63319916018,117cyclictest21339-21munin-run23:24:090
63319916017,118cyclictest24831-21apt-get23:34:370
63319916016,102cyclictest14066-21users21:25:590
63319916014,122cyclictest8355-21irqstats22:45:200
63319916013,123cyclictest9869-21basename21:14:490
63319915917,114cyclictest16513-21apt-get21:34:330
63319915917,100cyclictest20267-21df_inode21:44:590
63319915916,100cyclictest28109-21apt-get23:44:320
63319915915,120cyclictest16390-21apt-get23:09:260
6331991589,124cyclictest18869-21ssh21:40:500
63319915818,97cyclictest3320-21memory22:30:310
63319915817,119cyclictest9602-21apt-get22:49:350
63319915816,117cyclictest8042-21apt-get21:09:380
63319915814,103cyclictest18529-21irqstats23:15:220
63319915812,106cyclictest26447-21apt-get23:39:340
63319915715,117cyclictest4632-21apt-get20:59:380
63319915711,123cyclictest1689-21kernelversion20:50:230
63319915711,121cyclictest425-21sshd20:45:550
63319915627,110cyclictest14936-21cstates23:04:500
63319915618,114cyclictest2167-21munin-run00:04:070
63319915618,101cyclictest31822-21apt-get22:19:260
63319915617,115cyclictest31701-21/usr/sbin/munin22:19:110
63319915616,99cyclictest11810-21fw_conntrack21:20:140
63319915615,118cyclictest28433-21apt-get22:09:300
63319915612,119cyclictest28516-21/usr/sbin/munin20:35:430
63319915610,121cyclictest30101-21df_abs23:50:000
6331991559,121cyclictest31672-21cstates23:54:520
63319915517,116cyclictest12999-21apt-get22:59:300
63319915510,121cyclictest28298-21ssh22:09:090
63319915418,113cyclictest25303-21df21:59:580
63319915416,114cyclictest4499-21/usr/sbin/munin22:34:510
63319915319,93cyclictest18462-21users19:35:180
63319915318,96cyclictest22536-21irqstats19:59:560
63319915318,110cyclictest14114-21apt-get19:14:250
63319915213,98cyclictest9384-21wc18:45:130
63319915213,117cyclictest28206-21switchtime20:30:140
63319915119,108cyclictest12330-21apt-get19:04:240
63319915111,117cyclictest26245-21ntpq20:20:060
63319915110,118cyclictest25488-21fgrep20:15:130
63319915110,117cyclictest15379-21cat19:19:550
6331991509,117cyclictest22162-21cat19:59:110
63319915015,112cyclictest11632-21df18:59:440
63319915010,117cyclictest8397-21zcat18:40:290
6331991499,118cyclictest24080-21basename20:09:360
6331991498,118cyclictest17444-21ls19:30:160
63319914931,95cyclictest10633-21grep18:54:330
63319914913,112cyclictest16760-21cat19:29:110
63319914912,98cyclictest27318-21ls20:25:110
63319914911,115cyclictest23526-21grep20:05:080
63319914910,100cyclictest20446-21grep19:49:290
63319914813,112cyclictest19919-21load19:44:560
63319914810,114cyclictest24160-21lldpd19:39:510
6331991469,116cyclictest14076-21cat19:14:110
63319914611,113cyclictest9630-21/usr/sbin/munin18:49:170
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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