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2022-05-26 - 23:51

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 100 highest latencies:
System rack5slot7.osadl.org (updated Fri May 20, 2022 00:44:13)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
7323224590,12sleep04156-1kworker/u3:118:39:000
85999915480,49cyclictest17984-21ssh23:21:110
85999915381,49cyclictest28656-21basename23:54:150
85999915374,52cyclictest8805-21munin-run21:18:440
85999915179,49cyclictest10819-21wc18:54:430
85999915172,54cyclictest13817-21df_abs23:09:290
85999914979,49cyclictest15207-21apt-get23:14:020
85999914979,48cyclictest21227-21/usr/sbin/munin21:54:580
85999914977,49cyclictest31960-21ssh20:50:190
85999914975,34cyclictest10625-21ssh21:24:010
85999914875,49cyclictest25270-21basename23:44:100
85999914874,53cyclictest22087-21cut23:34:170
85999914874,52cyclictest1618-21latency_hist22:33:520
85999914874,51cyclictest14423-21interrupts21:34:490
85999914776,49cyclictest20255-21ssh23:29:010
85999914776,48cyclictest2330-21wget20:59:150
85999914775,48cyclictest12188-21df_inode23:04:320
85999914774,34cyclictest7872-21ssh22:51:120
85999914773,51cyclictest938-21ssh00:08:560
85999914773,51cyclictest26155-21ssh22:09:400
85999914773,34cyclictest27985-21ssh23:51:360
85999914773,34cyclictest10538-21sh21:23:470
85999914772,52cyclictest5703-21ssh22:45:080
85999914772,52cyclictest496-21ssh20:54:000
85999914772,52cyclictest4046-21awk22:40:090
85999914772,51cyclictest2976-21ssh22:36:560
85999914771,34cyclictest24622-21cut22:04:580
85999914677,48cyclictest18123-21unixbench_singl19:34:460
85999914675,48cyclictest31214-21ssh22:24:430
85999914674,52cyclictest26650-21sed20:24:490
85999914673,52cyclictest8694-21/usr/sbin/munin18:44:530
85999914672,52cyclictest17359-21ssh21:43:590
85999914670,54cyclictest14694-21snmpd22:21:270
85999914576,47cyclictest30781-21/usr/sbin/munin00:00:160
85999914575,46cyclictest14540-21grep19:14:460
85999914573,50cyclictest1342-21avahi-daemon19:28:440
85999914573,33cyclictest31782-21ssh00:04:080
85999914573,32cyclictest10806-21ssh23:00:130
85999914573,31cyclictest4606-21grep21:05:220
85999914572,51cyclictest31102-21ssh20:48:420
85999914569,55cyclictest8820-21ssh22:54:310
85999914477,48cyclictest26825-21apt-get20:28:550
85999914476,45cyclictest12278-21/usr/sbin/munin21:29:110
85999914475,48cyclictest16503-21ssh21:40:220
85999914472,35cyclictest27852-21ssh22:14:430
85999914375,49cyclictest6280-21/usr/sbin/munin21:10:230
85999914374,49cyclictest22491-21aten_r5power_cu21:59:110
85999914373,47cyclictest19032-21apt-get21:49:010
85999914274,45cyclictest28413-21grep20:34:470
85999914273,47cyclictest18809-21wc23:24:190
85999914273,31cyclictest19912-21head19:44:460
85999914181,36cyclictest13108-21expr19:09:080
85999914172,48cyclictest23741-21/usr/sbin/munin20:09:050
85999914171,49cyclictest23617-21/usr/sbin/munin23:39:070
85999914170,49cyclictest20649-21ps19:49:410
85999914072,48cyclictest22852-21basename20:04:060
85999914069,50cyclictest11603-21ntp_states18:59:380
85999913982,34cyclictest10104-21cron18:53:410
85999913970,48cyclictest22617-21grep19:59:490
85999913883,36cyclictest24585-21apt-get20:13:560
85999913874,43cyclictest14694-21snmpd19:29:050
85999913874,27cyclictest19065-21sshd19:40:340
85999913874,27cyclictest14822-21wget19:19:060
85999913773,43cyclictest29040-21grep20:39:360
85999913770,44cyclictest14694-21snmpd19:04:290
85999913380,32cyclictest21371-21ls19:54:280
85999913281,33cyclictest25683-21sh20:19:110
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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