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2021-05-12 - 12:57

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 highest latencies:
System rack5slot7.osadl.org (updated Wed May 12, 2021 00:44:34)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3305224230,13sleep03144-1kworker/u3:118:58:380
3839213240,4sleep03144-1kworker/u3:119:02:240
38559910826,65cyclictest0-21swapper21:04:130
38559910713,50cyclictest30042-21ls21:14:120
38559910517,68cyclictest25507-21df_inode22:38:060
38559910416,71cyclictest0-21swapper00:04:040
38559910317,24cyclictest17722-21munin-run23:52:190
38559910232,40cyclictest6838-21aten_r5power_po21:42:430
38559910220,43cyclictest6399-21df23:17:540
38559910218,47cyclictest7547-21fw_conntrack19:22:550
38559910216,66cyclictest27279-21irqstats22:43:250
38559910216,61cyclictest13405-21ls23:38:420
38559910215,66cyclictest15461-21df_inode22:08:060
38559910215,64cyclictest23368-21munin-run22:32:170
38559910215,26cyclictest2292-21ls21:28:420
38559910214,71cyclictest0-21swapper22:03:280
38559910212,28cyclictest4725-21ssh21:36:060
38559910117,22cyclictest23212-21fw_conntrack00:08:170
38559910117,21cyclictest8439-21apt-get21:47:430
38559910116,68cyclictest0-21swapper22:24:030
3855991009,26cyclictest5779-21grep21:38:540
38559910036,28cyclictest0-21swapper22:13:430
38559910017,61cyclictest17736-21fw_conntrack20:17:550
38559910016,24cyclictest4739-21df23:12:580
3855999919,21cyclictest32379-21ssh22:58:280
3855999918,61cyclictest18498-21apt-get22:17:370
3855999914,65cyclictest28110-21ssh00:23:200
3855999914,23cyclictest24750-21munin-run20:57:180
3855999914,22cyclictest24739-21df00:12:520
3855999912,48cyclictest16491-21wc20:12:220
3855999816,24cyclictest29812-21ssh00:28:430
3855999815,45cyclictest11464-21ssh21:56:200
3855999813,49cyclictest31509-21ssh22:56:030
3855999813,24cyclictest15179-21ssh23:43:550
3855999811,49cyclictest1336-21ssh23:02:560
3855999743,23cyclictest5318-21sendmail19:12:180
3855999733,48cyclictest0-21swapper20:58:260
3855999732,50cyclictest0-21swapper19:28:310
3855999731,49cyclictest0-21swapper20:43:040
3855999718,21cyclictest19768-21df23:57:550
3855999717,22cyclictest32021-21ssh21:20:280
3855999716,61cyclictest3132-21fw_conntrack23:08:140
3855999716,29cyclictest28349-21ls21:09:120
3855999714,74cyclictest0-21swapper23:29:110
3855999713,24cyclictest26435-21df_inode00:18:090
3855999713,22cyclictest29054-21missed_timers22:48:380
3855999712,63cyclictest1529-21ssh21:27:040
3855999712,45cyclictest6372-21wget19:17:360
3855999711,46cyclictest24123-21ntpdc22:33:480
385599968,69cyclictest16523-21/usr/sbin/munin20:12:380
3855999623,56cyclictest0-21swapper21:59:140
3855999617,59cyclictest11687-21memory23:33:370
3855999611,45cyclictest18734-21ssh23:54:120
3855999532,49cyclictest0-21swapper20:28:050
3855999530,53cyclictest0-21swapper20:33:310
3855999528,48cyclictest0-21swapper20:03:340
3855999516,61cyclictest0-21swapper20:38:310
3855999511,63cyclictest7918-21wget23:22:450
3855999434,44cyclictest0-21swapper19:38:130
3855999428,49cyclictest0-21swapper19:33:310
3855999416,43cyclictest18648-21fw_conntrack20:22:550
3855999310,64cyclictest4016-21snmpd20:48:200
3855999228,46cyclictest0-21swapper19:58:360
3855999215,30cyclictest13515-21ls19:53:320
3855999135,21cyclictest12539-21awk19:48:280
3855999032,27cyclictest0-21swapper19:13:300
3855999019,54cyclictest0-21swapper19:43:300
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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