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2024-12-11 - 13:15

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #2, 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 - Rack #f/#0 #1 #2 #3 #4 #5 #6 #7 #8 
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Click here to display the system's profile data or here to proceed to next system.
Click on a legend element to toggle display of that core, ctrl-click inverts display, shift-click enables all.

Data to construct the above plot have been generated using the RT test utility cyclictest.

Total number of samples: 100 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 rack2slot7s.osadl.org (updated Wed Dec 11, 2024 00:42:58)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1693079995535,11cyclictest12450irq/32-eth022:36:000
1693079995342,6cyclictest0-21swapper/000:21:030
1693080995143,5cyclictest1787865-21cron22:35:011
1693080995143,5cyclictest1787865-21cron22:35:011
169308199504,34cyclictest1760975-21ssh21:56:002
1693079994833,12cyclictest1824406-21latency_hist23:25:020
1693079994833,12cyclictest1824406-21latency_hist23:25:020
1693079994637,5cyclictest1806260-21latency_hist23:00:030
1693080994538,4cyclictest1837421-21kworker/u8:3-nfsiod00:00:011
1693080994538,4cyclictest1837421-21kworker/u8:3-nfsiod00:00:011
1693080994533,7cyclictest421-21avahi-daemon00:16:061
1693081994433,7cyclictest0-21swapper/221:11:002
1693080994435,6cyclictest1720069-21sendmail20:40:011
1693080994335,5cyclictest1784220-21munin-plugin-st22:30:001
1693080994335,5cyclictest1784220-21munin-plugin-st22:30:001
1693079994336,3cyclictest0-21swapper/000:06:000
1693081994233,5cyclictest0-21swapper/223:15:012
1693081994232,6cyclictest957-21mta-sts-daemon00:01:112
169308199422,32cyclictest1822040-21ssh23:21:022
169308199422,32cyclictest1822040-21ssh23:21:022
1693080994234,5cyclictest422-21dbus-daemon23:55:021
1693080994233,4cyclictest0-21swapper/120:46:011
1693080994232,6cyclictest422-21dbus-daemon23:35:011
169307999421,33cyclictest1833043-21ssh23:36:020
1693081994134,4cyclictest1795196-21kworker/u8:15+xprtiod22:45:012
1693080994132,6cyclictest1736018-21ls21:20:011
1693080994132,4cyclictest0-21swapper/122:01:111
1693080994129,6cyclictest0-21swapper/122:56:011
169307999412,33cyclictest1756112-21kworker/0:0+events_power_efficient21:51:010
1693081994035,2cyclictest0-21swapper/219:40:012
1693081994034,3cyclictest0-21swapper/222:20:012
1693079994021,13cyclictest151ktimers/019:46:060
1693079994021,13cyclictest151ktimers/019:46:060
1693081993932,4cyclictest1718562-21idleruntime-cro20:35:012
1693081993930,5cyclictest1737063-21kernelversion21:21:042
1693081993929,6cyclictest421-21avahi-daemon22:28:062
1693081993929,6cyclictest421-21avahi-daemon22:28:062
1693080993931,5cyclictest1813417-21munin-plugin-st23:10:011
169308099392,22cyclictest1789215-21ssh22:36:021
169307999393,32cyclictest1851374-21ssh00:01:040
1693079993932,5cyclictest957-21mta-sts-daemon23:51:000
1693079993932,3cyclictest0-21swapper/022:46:000
1693079993931,5cyclictest1820722-21systemd-run23:20:020
1693079993929,8cyclictest1747350-21sh21:35:570
1693079993927,9cyclictest0-21swapper/000:40:010
169307999392,28cyclictest657-21snmpd21:05:580
1693081993828,7cyclictest1835963-21aten_r2power_cu23:40:502
169308199381,30cyclictest1796457-21ssh22:45:572
169308099385,28cyclictest1743996-21ssh21:30:571
169308099385,28cyclictest1743996-21ssh21:30:571
1693080993830,4cyclictest0-21swapper/123:36:021
1693080993829,6cyclictest1717594-21fschecks_time20:30:521
1693080993829,5cyclictest0-21swapper/121:21:201
1693080993828,7cyclictest1721556-21cron20:45:011
1693080993816,3cyclictest171rcu_preempt00:21:021
169307999383,25cyclictest657-21snmpd21:11:000
1693079993830,5cyclictest1702090-21systemd-run19:40:010
1693079993825,10cyclictest0-21swapper/021:25:560
169308199373,28cyclictest1800053-21ssh22:50:572
1693081993727,6cyclictest956-21mta-sts-daemon20:06:012
1693081993722,9cyclictest422-21dbus-daemon00:39:362
169308199371,27cyclictest1858663-21ssh00:11:082
169308099373,27cyclictest1836808-21ssh23:41:081
1693080993729,5cyclictest1851895-21unixbench_singl00:01:121
1693080993728,6cyclictest453-21systemd-logind23:20:021
169307999373,7cyclictest171rcu_preempt23:06:070
1693079993729,5cyclictest1737193-21wc21:21:050
1693079993728,7cyclictest1849935-21sendmail00:00:010
1693079993728,7cyclictest1849935-21sendmail00:00:010
1693079993728,6cyclictest1817033-21diskmemload23:15:010
1693079993728,4cyclictest0-21swapper/019:11:070
1693079993727,7cyclictest1743441-21aten2.4-expect21:30:490
1693079993727,7cyclictest1743441-21aten2.4-expect21:30:490
1693079993726,8cyclictest1696054-21cron19:20:010
169307999372,29cyclictest1761046-21ssh21:56:030
1693081993630,4cyclictest0-21swapper/200:00:012
1693081993630,4cyclictest0-21swapper/200:00:012
1693081993628,5cyclictest1818945-21unixbench_singl23:16:122
1693080993628,5cyclictest1854830-21needreboot00:05:561
1693080993628,5cyclictest1769808-21systemd-run22:10:021
1693080993628,5cyclictest0-21swapper/100:35:011
1693080993625,5cyclictest0-21swapper/122:15:591
1693079993627,6cyclictest1858344-21latency00:10:590
1693079993626,6cyclictest151ktimers/021:16:030
169308199353,28cyclictest1771162-21ssh22:11:052
1693081993529,3cyclictest0-21swapper/223:40:012
1693081993526,5cyclictest1-21systemd23:00:022
169308199351,28cyclictest1844060-21ssh23:51:032
1693080993529,3cyclictest0-21swapper/123:30:011
1693080993526,5cyclictest0-21swapper/100:26:101
1693080993524,7cyclictest1-21systemd22:45:011
1693080993516,15cyclictest1729980-21diskstats21:10:531
1693080993515,4cyclictest171rcu_preempt21:51:021
1693080993515,4cyclictest171rcu_preempt19:15:591
1693079993527,5cyclictest1708091-21systemd-run20:00:010
1693079993523,9cyclictest1842873-21ssh23:50:030
169307999352,28cyclictest1764487-21ssh22:01:030
1693079993522,4cyclictest1831771-21ssh23:35:020
1693079993513,14cyclictest12450irq/32-eth022:50:570
1693081993426,5cyclictest1809745-21cron23:05:012
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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