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2022-01-23 - 19:43

Pentium 75 - 200, Linux 4.18.7-rt5 (Profile)

Latency plot of system in rack #3, slot #5
Data to construct the above plot have been generated using the RT test utility cyclictest.
Command line: cyclictest -l25000000 -m -n -a0 -t1 -p99 -i800 -h1000 -q
Total number of samples: 25 million
Resolution of latency scale: reduced 
Duration: 5 hours, 33 minutes
Compare latency of primary with shadow system
Characteristics of all highest latencies:
System rack3slot5.osadl.org (updated Fri Jan 21, 2022 12:44:25)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
237279941091,0cyclictest21060-21aten_r3power_cu09:24:530
237279940630,0cyclictest1145-21jbd2/sda1-807:39:390
2372799402111,0cyclictest12385-21ssh11:09:280
237279940155,0cyclictest12952-21switchtime11:11:110
237279939436,0cyclictest23264-21munin-node12:00:460
237279939235,0cyclictest2563-21needreboot10:26:360
237279939134,0cyclictest20057-21irqstats09:19:580
237279939133,0cyclictest2255-21syslogd07:39:270
237279939092,0cyclictest26286-21ssh09:49:340
237279939035,0cyclictest22030-21aten_r3power_cu11:54:520
237279939031,0cyclictest17955-21aten_r3power_cu09:09:520
237279938964,0cyclictest2312-21nscd11:43:310
237279938935,0cyclictest430-21needreboot07:50:500
237279938872,0cyclictest2314-21nscd10:15:170
237279938774,0cyclictest24199-21ssh09:39:290
237279938735,0cyclictest27715-21irqstats12:19:580
237279938653,0cyclictest31869-21ssh12:39:280
237279938652,0cyclictest19794-21ssh11:45:140
237279938436,0cyclictest10389-21switchtime11:01:140
237279938335,0cyclictest2313-21nscd09:05:420
237279938279,0cyclictest25729-21ssh12:10:140
237279938235,0cyclictest27806-21iostat09:55:590
237279938234,0cyclictest29095-21munin-node12:25:310
237279938096,0cyclictest22409-21ssh09:30:060
237279938057,0cyclictest2610-21runrttasks07:20:560
237279938055,0cyclictest13955-21switchtime11:16:110
237279937870,0cyclictest20822-21ssh11:50:150
237279937855,0cyclictest24863-21kworker/0:008:39:340
237279937735,0cyclictest7755-21apt-get10:50:130
237279937733,0cyclictest9396-21missed_timers10:56:470
2372799377109,0cyclictest2255-21syslogd08:14:280
237279937672,0cyclictest5984-21ssh10:41:370
237279937635,0cyclictest24734-21switchtime12:06:060
237279937534,0cyclictest8442-21find08:25:570
237279937436,0cyclictest16654-21apt-get09:04:280
2372799374108,0cyclictest19859-21munin-run09:19:360
237279937234,0cyclictest15528-21latency_hist11:24:380
2372799372108,0cyclictest3198-21chrt08:04:260
237279937180,0cyclictest1154-21sshd07:55:120
237279937133,0cyclictest17473-21sh11:34:270
237279937059,0cyclictest26540-21sh09:50:270
237279937035,0cyclictest3396-21apt-get10:30:140
2372799370103,0cyclictest17736-21ssh11:35:130
237279936963,0cyclictest683-21grep10:19:540
237279936933,0cyclictest11693-21needreboot08:40:460
237279936873,0cyclictest6790-21chrt08:19:570
237279936832,0cyclictest29854-21ntp_states10:05:090
237279936729,0cyclictest1145-21jbd2/sda1-808:14:340
237279936728,0cyclictest3173-21kworker/u2:208:54:460
237279936697,0cyclictest26749-21ssh12:15:130
237279936588,0cyclictest25238-21ssh09:44:280
237279936487,0cyclictest32044-21chrt07:46:050
237279936435,0cyclictest3434-21apt-get08:05:010
237279936333,0cyclictest7177-21ssh10:46:340
237279936232,0cyclictest28588-21apt10:00:150
237279936029,0cyclictest1145-21jbd2/sda1-808:29:360
237279936029,0cyclictest1145-21jbd2/sda1-807:24:350
2372799360100,0cyclictest28005-21apt-get07:30:110
237279935934,0cyclictest31466-21cat10:11:040
237279935570,0cyclictest23724-21cyclictest10:38:330
237279935429,0cyclictest1145-21jbd2/sda1-808:49:350
237279935262,0cyclictest24832-21idleruntime-cro07:14:270
237279934936,0cyclictest30381-21switchtime12:31:060
237279934457,0cyclictest24833-21latency_hist07:14:400
237279934267,0cyclictest15433-21cron11:24:260
237279933440,0cyclictest2314-21nscd08:45:250
237279930760,0cyclictest23755-21wc07:09:310
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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