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2024-07-27 - 14:28

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #5, slot #4

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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  Intel
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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: ondemand
Compare latency of primary with shadow system
Characteristics of the 50 highest latencies:
System rack5slot4s.osadl.org (updated Sat Jul 27, 2024 00:44:41)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
10234211095,10sleep20-21swapper/219:05:162
15005210995,10sleep30-21swapper/319:08:133
14267210995,10sleep10-21swapper/119:05:271
1531299108106,1cyclictest0-21swapper/219:18:092
153039910798,8cyclictest0-21swapper/019:18:100
14972210794,10sleep00-21swapper/019:07:460
153079910298,2cyclictest0-21swapper/119:18:101
33712880,1sleep3421rcuc/322:40:273
266522600,1sleep30-21swapper/320:10:293
15303995651,4cyclictest10335-21kworker/u16:1+events_unbound22:20:020
15312995149,1cyclictest0-21swapper/219:10:052
15303994840,8cyclictest0-21swapper/019:10:060
15307994540,2cyclictest0-21swapper/119:10:061
15303994037,2cyclictest23852-21kworker/u16:0+events_unbound21:20:000
15303993935,3cyclictest23852-21kworker/u16:0+events_unbound00:00:000
15312993328,4cyclictest23852-21kworker/u16:0+events_unbound21:20:032
15312993328,4cyclictest23852-21kworker/u16:0+events_unbound21:20:032
15303993228,3cyclictest23852-21kworker/u16:0+events_unbound22:55:020
15312993026,3cyclictest10335-21kworker/u16:1+events_unbound23:35:252
15307993026,3cyclictest23852-21kworker/u16:0+events_unbound22:45:291
15312992723,3cyclictest9536-21kworker/u16:3+events_unbound20:10:292
15312992723,3cyclictest23852-21kworker/u16:0+events_unbound23:20:282
15312992521,3cyclictest10335-21kworker/u16:1+events_unbound23:40:262
15312992521,3cyclictest10335-21kworker/u16:1+events_unbound22:05:302
15303992416,7cyclictest10086-21munin-run20:00:010
15307992313,9cyclictest15897-21turbostat21:30:011
15307992313,9cyclictest15897-21turbostat21:30:011
15307992118,2cyclictest535-21gdbus20:55:001
15307992113,7cyclictest0-21swapper/122:00:011
15303992113,7cyclictest28593-21apt20:44:590
15303992112,2cyclictest17248-21cron20:35:000
15303992111,2cyclictest32159-21unixbench_multi23:05:270
15312992016,3cyclictest10335-21kworker/u16:1+events_unbound21:25:512
15312992016,3cyclictest10335-21kworker/u16:1+events_unbound21:25:512
15303992017,2cyclictest0-21swapper/000:00:000
15303992012,2cyclictest24896-21idleruntime-cro21:10:000
15303992010,2cyclictest535-21gdbus20:40:000
15307991916,2cyclictest449-21apt21:45:001
15307991912,3cyclictest28842-21apt-get20:45:101
1530399199,3cyclictest27997-21fschecks_count21:40:150
1530799189,5cyclictest29654-21gltestperf22:10:141
1530799189,3cyclictest17205-21kthreadcore20:05:191
1530799189,2cyclictest13105-21unixbench_singl20:55:301
1530399188,2cyclictest22413-21unixbench_singl23:25:290
15303991814,3cyclictest1-21systemd23:04:590
15307991714,2cyclictest5953-21debian-sa120:25:001
15307991714,2cyclictest19210-21turbostat.cron21:05:001
1530399179,2cyclictest19758-21unixbench_multi00:20:270
1530399178,2cyclictest10468-21gltestperf22:50:140
1530399170,3cyclictest18384-21tr20:05:200
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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