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2023-03-23 - 00:05

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 Wed Mar 22, 2023 12:44:14)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
31566224012211,140sleep00-21swapper06:25:290
319429911241,58cyclictest29193-21timerwakeupswit08:50:160
319429910437,50cyclictest0-21swapper09:27:560
319429910235,47cyclictest0-21swapper07:08:510
319429910213,65cyclictest13484-21timerandwakeup09:40:190
319429910118,62cyclictest31189-21apt-get10:33:560
319429910116,64cyclictest24489-21fw_conntrack11:49:380
319429910115,47cyclictest27808-21apt-get10:23:520
319429910112,26cyclictest9594-21ssh09:29:250
319429910110,68cyclictest718-21grep06:33:490
319429910033,49cyclictest0-21swapper08:31:120
319429910016,65cyclictest888-21irqstats10:39:490
319429910016,64cyclictest2224-21grep10:44:090
319429910013,66cyclictest12281-21/usr/sbin/munin11:14:120
319429910012,24cyclictest10034-21aten_r5power_en07:23:540
31942999918,58cyclictest17719-21apt-get09:53:580
31942999916,44cyclictest4760-21users10:50:260
31942999916,43cyclictest5752-21munin-run09:18:340
31942999916,22cyclictest21191-21irqstats11:39:480
31942999915,63cyclictest23047-21df10:09:180
31942999915,62cyclictest26662-21memory10:19:550
31942999914,48cyclictest25120-21aten_r5power_en08:39:060
31942999913,68cyclictest30241-21/usr/sbin/munin10:30:130
3194299989,65cyclictest30030-21ssh08:53:590
31942999817,23cyclictest20350-21users10:00:250
31942999816,46cyclictest31879-21ssh08:59:150
31942999816,46cyclictest17568-21ssh09:53:330
31942999813,65cyclictest20332-21grep08:19:270
31942999812,24cyclictest11335-21ntpq07:29:280
31942999811,67cyclictest22540-21aten_r5power_po11:44:100
3194299978,64cyclictest5872-21sort06:59:230
31942999716,60cyclictest5872-21df_inode10:54:340
31942999716,44cyclictest23377-21apt-get08:34:040
31942999715,51cyclictest0-21swapper11:56:180
31942999710,27cyclictest24160-21lldpd07:04:390
3194299969,64cyclictest20960-21wc08:24:000
31942999640,24cyclictest950-21aten_r5power_vo09:04:090
31942999635,20cyclictest24800-21sshd10:14:270
31942999615,62cyclictest14248-21df11:19:200
31942999615,44cyclictest27158-21irqstats08:44:490
31942999612,63cyclictest21745-21awk10:05:090
31942999612,63cyclictest14477-21/usr/sbin/munin07:48:430
31942999610,47cyclictest2588-21tr09:09:080
31942999516,65cyclictest0-21swapper07:54:270
31942999516,23cyclictest17726-21fw_conntrack11:29:360
31942999514,61cyclictest6518-21ntp_states09:20:040
31942999512,63cyclictest10956-21/usr/sbin/munin11:09:310
31942999512,22cyclictest19947-21sed11:35:210
3194299949,62cyclictest16328-21/usr/sbin/munin11:25:090
31942999414,22cyclictest11481-21memory09:34:560
31942999315,43cyclictest7674-21irqstats10:59:490
31942999315,42cyclictest14739-21fw_conntrack09:44:420
31942999315,24cyclictest9256-21df_inode11:04:310
31942999237,39cyclictest16460-21ls07:58:590
31942999220,24cyclictest3532-21grep06:44:390
31942999215,21cyclictest13171-21ntp_states07:39:340
3194299919,24cyclictest13589-21/usr/sbin/munin07:44:220
31942999121,52cyclictest32703-21timerandwakeup06:29:360
31942999119,50cyclictest12248-21ntp_states07:34:300
31942999119,34cyclictest8978-21munin-run07:18:340
31942998912,29cyclictest4170-21ntpq06:49:310
31942998910,20cyclictest9898-21wc07:23:340
31942998813,26cyclictest24160-21lldpd06:54:240
31942998718,22cyclictest17940-21users08:04:400
31942998714,25cyclictest18550-21ntp_states08:09:340
31942998712,27cyclictest19433-21awk08:14:360
31942998616,24cyclictest2111-21df06:39:090
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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