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2024-06-16 - 11:10

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #7, slot #3

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 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 all highest latencies:
System rack7slot3s.osadl.org (updated Sun Jun 16, 2024 03:36:47)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
108749910790,5cyclictest8050irq/56-dwc_otg_03:18:080
1087499905,46cyclictest0-21swapper/002:32:490
1087499840,54cyclictest16136-21idleruntime-cro02:47:460
260222820,6sleep01087499cyclictest03:13:030
1087499826,11cyclictest0-21swapper/003:07:550
10874997540,8cyclictest0-21swapper/003:27:510
1087499716,51cyclictest1620-21unixbench-2d03:33:140
1087499655,47cyclictest18661-21cut02:53:050
1087499578,40cyclictest0-21swapper/003:06:480
1087499578,40cyclictest0-21swapper/003:06:480
10874995715,6cyclictest101ktimersoftd/003:27:470
105992578,35sleep310628-21munin-run02:32:463
105992578,35sleep310628-21munin-run02:32:463
90452534,12sleep19054-21apt-get02:27:541
90452534,12sleep19054-21apt-get02:27:541
1087499537,32cyclictest0-21swapper/002:48:100
1087599513,23cyclictest0-21swapper/102:32:491
1087499496,33cyclictest14086-21chrt02:39:500
1087699465,10cyclictest10878-21runrttasks02:32:492
1087499458,27cyclictest0-21swapper/002:58:230
1087799447,17cyclictest8050irq/56-dwc_otg_02:32:493
1087599441,19cyclictest24771-21unixbench-2d03:08:151
1087599422,8cyclictest0-21swapper/103:02:551
1087599422,8cyclictest0-21swapper/103:02:551
1087699396,11cyclictest8050irq/56-dwc_otg_03:07:472
1087699396,11cyclictest8050irq/56-dwc_otg_03:07:472
1087699371,6cyclictest14340-21munin-run02:42:462
1087599371,26cyclictest0-21swapper/103:32:581
1087699356,4cyclictest8050irq/56-dwc_otg_03:23:172
1087699355,15cyclictest8050irq/56-dwc_otg_03:33:012
1087699353,8cyclictest23378-20Xorg03:17:532
1087599351,22cyclictest20852-21ls02:58:161
90992344,20sleep09040-21/usr/sbin/munin02:27:570
90992344,20sleep09040-21/usr/sbin/munin02:27:570
1087799347,5cyclictest8150irq/56-dwc_otg_03:17:543
1087799342,6cyclictest8050irq/56-dwc_otg_03:23:183
1087699347,5cyclictest8050irq/56-dwc_otg_03:28:092
1087699341,6cyclictest23378-20Xorg03:13:072
10876993410,5cyclictest23378-20Xorg03:08:042
1087599341,15cyclictest0-21swapper/102:37:481
1087799338,7cyclictest8150irq/56-dwc_otg_03:07:473
1087799338,7cyclictest8150irq/56-dwc_otg_03:07:473
1087799323,5cyclictest8150irq/56-dwc_otg_03:33:023
10877993211,12cyclictest131-21systemd-journal03:30:183
1087699321,4cyclictest18385-21df_inode02:53:002
10875993220,6cyclictest1292-21runrttasks03:17:541
1087799319,12cyclictest0-21swapper/302:43:043
1087799315,11cyclictest8050irq/56-dwc_otg_02:48:033
1087699314,13cyclictest8150irq/56-dwc_otg_03:02:472
1087599315,16cyclictest29317-21basename03:23:021
1087599311,17cyclictest0-21swapper/102:48:191
1087799301,9cyclictest8150irq/56-dwc_otg_03:09:123
1087599304,11cyclictest8050irq/56-dwc_otg_03:13:031
1087599301,19cyclictest0-21swapper/102:52:571
1087599301,14cyclictest31874-21grep03:28:061
10875993011,10cyclictest14560-21/usr/sbin/munin02:43:141
1087799294,6cyclictest8150irq/56-dwc_otg_02:42:463
1087699293,19cyclictest0-21swapper/202:52:392
1087799282,7cyclictest8150irq/56-dwc_otg_03:12:573
1087799277,4cyclictest8050irq/56-dwc_otg_02:58:203
1087799271,16cyclictest0-21swapper/302:54:453
105152273,14sleep20-21swapper/202:31:482
105152273,14sleep20-21swapper/202:31:482
1087699261,12cyclictest0-21swapper/202:47:292
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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