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2023-05-31 - 06:23

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 highest latencies:
System rack5slot7.osadl.org (updated Wed May 31, 2023 00:44:13)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
8037223952171,171sleep00-21swapper18:22:300
83659910418,23cyclictest16696-21ssh21:21:460
83659910316,24cyclictest19974-21df19:25:430
83659910225,68cyclictest0-21swapper23:13:200
83659910217,22cyclictest13013-21df21:11:100
83659910133,52cyclictest0-21swapper23:28:060
83659910116,64cyclictest9593-21apt-get22:40:330
83659910113,27cyclictest23392-21ssh23:21:510
83659910110,50cyclictest21075-21ssh23:15:420
83659910018,61cyclictest5591-21ssh20:46:580
83659910016,23cyclictest18246-21df_inode19:15:490
83659910012,49cyclictest14038-21ssh22:53:360
83659910012,25cyclictest10741-21ssh21:03:370
83659910011,25cyclictest16225-21/usr/sbin/munin23:00:450
8365999933,51cyclictest0-21swapper22:48:060
8365999918,43cyclictest23002-21ntp_states21:41:450
8365999912,66cyclictest30929-21sed20:26:020
8365999910,67cyclictest6654-21ssh20:51:060
836599989,25cyclictest19277-21ssh21:30:500
8365999837,43cyclictest0-21swapper22:38:580
8365999828,53cyclictest0-21swapper21:39:350
8365999819,58cyclictest24641-21sshd21:46:490
8365999818,59cyclictest3359-21df_inode22:21:060
8365999814,64cyclictest1410-21/usr/sbin/munin20:36:480
8365999814,23cyclictest28959-21aten_r5power_cu22:00:440
8365999813,49cyclictest5041-21ssh22:26:180
8365999812,64cyclictest9071-21ssh20:58:100
8365999812,64cyclictest30814-21ssh22:05:550
8365999812,64cyclictest30434-21latency_hist23:45:140
8365999717,61cyclictest25982-21df_inode21:51:080
8365999716,61cyclictest7219-21users22:32:000
8365999714,64cyclictest15381-21users22:56:580
8365999712,45cyclictest26257-21/usr/sbin/munin23:31:290
8365999711,65cyclictest3967-21users20:42:050
8365999711,28cyclictest896-21ssh22:13:220
8365999618,20cyclictest12466-21munin-run18:45:100
8365999616,43cyclictest29982-21fw_conntrack20:20:490
8365999615,22cyclictest18398-21users21:26:580
8365999611,64cyclictest11710-21tr21:06:360
8365999610,69cyclictest17849-21aten_r5power_po23:05:460
8365999517,41cyclictest14744-21irqstats21:16:220
8365999516,60cyclictest14264-21munin-run18:55:080
8365999516,26cyclictest13321-21users18:46:270
8365999516,22cyclictest25077-21munin-run19:55:080
8365999514,60cyclictest32504-21irqstats23:51:230
8365999514,42cyclictest30857-21fw_conntrack23:46:110
8365999415,41cyclictest23717-21irqstats19:46:030
8365999411,47cyclictest15174-21latency_hist19:00:080
8365999335,37cyclictest28148-21timerandwakeup23:36:450
8365999317,59cyclictest32570-21df_inode20:31:120
8365999232,39cyclictest1391-21apt-get22:15:360
8365999232,29cyclictest0-21swapper20:10:330
8365999214,59cyclictest27446-21ssh21:55:490
8365999211,21cyclictest19601-21sed19:21:220
8365999126,57cyclictest0-21swapper20:18:070
8365999021,25cyclictest9378-21munin-node18:30:180
8365999013,27cyclictest26088-21/usr/sbin/munin20:00:360
8365999010,23cyclictest29077-21snmpd20:06:260
8365998918,23cyclictest20932-21df_inode19:30:500
8365998917,25cyclictest11533-21/usr/sbin/munin18:36:240
8365998917,24cyclictest15550-21df_inode19:00:510
8365998912,18cyclictest16166-21apt-get19:05:260
8365998910,61cyclictest21966-21sort19:36:060
8365998910,27cyclictest23072-21/usr/sbin/munin19:41:190
8365998813,57cyclictest0-21swapper19:56:110
8365998714,26cyclictest8805-21/usr/sbin/munin18:25:580
8365998612,25cyclictest17508-21ntpq19:11:140
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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