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2023-03-27 - 15:29

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #5, slot #7

Rack #0/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #1/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #2/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #3/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #4/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #5/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #6/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #7/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #8/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #9/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #a/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #b/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #c/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #d/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #e/#0 #1 #2 #3 #4 #5 #6 #7 #8 
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ARM Freescale i.MX6UL @528 MHz, Linux 4.18.7-rt5 (Profile)

Latency plot of shadow in rack #5, slot #7
Data to construct the above plot have been generated using the RT test utility cyclictest.
Command line: cyclictest -l50500000 -m -n -a0 -t1 -p99 -i396 -h400 -q
Total number of samples: 50.5 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 792 highest latencies:
System rack5slot7s.osadl.org (updated Mon Mar 27, 2023 12:45:11)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
31533224392194,98sleep00-21swapper07:07:360
318509917120,26cyclictest3719-21apt-get10:50:420
318509916816,128cyclictest16525-21diskstats08:50:410
318509916516,124cyclictest4607-21munin-run07:40:040
318509916214,124cyclictest4602-21apt-get07:42:050
318509916018,24cyclictest26081-21apt-get09:50:330
318509915942,20cyclictest13088-21sh08:30:010
318509915919,27cyclictest12530-21ntp_states11:41:110
318509915913,37cyclictest11074-21apt-get11:36:050
318509915910,124cyclictest18952-21tr12:20:590
318509915817,98cyclictest6429-21apt-get07:51:100
318509915813,27cyclictest7538-21/usr/sbin/munin07:56:060
318509915813,105cyclictest22691-21snmpd11:56:150
318509915716,23cyclictest10692-21ntp_states11:31:030
318509915629,21cyclictest0-21swapper07:11:070
318509915616,114cyclictest6198-21gpgv11:05:190
318509915615,117cyclictest5219-21munin-run11:00:040
318509915614,116cyclictest30299-21/usr/sbin/munin10:16:020
318509915610,119cyclictest14781-21wc08:40:060
318509915514,25cyclictest672-21/usr/sbin/munin07:15:280
318509915513,24cyclictest3338-21zcat10:47:110
31850991549,26cyclictest22046-21grep12:40:070
318509915415,24cyclictest7448-21grep11:11:070
318509915410,42cyclictest9404-21sed11:21:190
318509915410,119cyclictest20887-21cut09:16:130
31850991538,122cyclictest15501-21systemd-journal11:27:410
318509915315,22cyclictest21365-21df_inode09:20:420
318509915314,117cyclictest20159-21apt-get12:31:000
318509915313,25cyclictest2459-21ls10:41:130
318509915313,117cyclictest23771-21diskstats09:35:510
318509915222,33cyclictest0-21swapper09:00:120
318509915219,27cyclictest7944-21apt-get11:15:230
318509915217,24cyclictest14994-21irqstats08:40:480
318509915215,24cyclictest27791-21munin-run10:00:030
318509915214,25cyclictest18115-21ntpq12:15:580
318509915214,22cyclictest32186-21memory10:26:030
318509915211,101cyclictest24779-21grep09:41:050
318509915210,119cyclictest20088-21grep09:11:080
318509915177,51cyclictest23453-21grep09:31:190
318509915128,105cyclictest29321-21unixbench_singl10:06:140
318509915125,21cyclictest0-21swapper08:00:560
318509915118,22cyclictest16342-21df_inode12:05:500
318509915117,27cyclictest2304-21apt-get07:25:160
318509915116,112cyclictest1787-21munin-run10:40:010
318509915112,25cyclictest17750-21threads08:56:100
318509915111,117cyclictest980-21munin-run10:35:030
31850991509,118cyclictest31452-21sshd10:21:020
318509915034,21cyclictest13293-21df_inode08:30:370
318509915033,22cyclictest20159-21apt-get12:30:010
318509915019,102cyclictest15675-21memory12:00:550
318509915014,112cyclictest9406-21/usr/sbin/munin08:05:510
318509915012,26cyclictest16038-21grep08:46:040
318509915010,40cyclictest12052-21cut08:21:060
318509914915,36cyclictest2202-21apt07:25:020
318509914913,22cyclictest17519-21cut12:11:090
318509914825,99cyclictest10856-21df08:15:340
318509914816,22cyclictest22161-21df09:25:360
318509914815,23cyclictest13978-21irqstats11:50:480
318509914813,113cyclictest5819-21expr07:45:410
318509914732,21cyclictest5587-21cat11:00:560
318509914729,22cyclictest0-21swapper10:10:420
318509914712,115cyclictest28190-21/usr/sbin/munin10:00:580
318509914712,109cyclictest25423-21cat09:45:470
318509914617,104cyclictest18834-21apt-get09:05:160
318509914616,26cyclictest10062-21df08:10:330
318509914612,110cyclictest3402-21ntpq07:30:580
318509914518,26cyclictest13127-21/usr/sbin/munin11:45:460
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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