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2025-12-06 - 10:27

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #0, slot #8

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 rack0slot8s.osadl.org (updated Sat Dec 06, 2025 00:44:52)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2759911060,96ptp4l0-21swapper/119:06:351
1854726756,9sleep100-21swapper/1019:09:362
1675926755,9sleep50-21swapper/519:05:187
1840126658,6sleep110-21swapper/1119:07:253
1853026452,9sleep60-21swapper/619:09:208
1846426354,7sleep70-21swapper/719:08:209
1560426250,9sleep00-21swapper/019:05:130
1834025948,9sleep40-21swapper/419:06:296
1899699370,1cyclictest0-21swapper/1021:50:162
1899699310,1cyclictest0-21swapper/1019:55:212
1896899242,17cyclictest0-21swapper/419:40:016
1896899242,17cyclictest0-21swapper/419:40:016
1896899240,8cyclictest0-21swapper/423:55:006
1899299234,10cyclictest0-21swapper/923:20:0011
1896899212,14cyclictest0-21swapper/423:50:006
1896899212,14cyclictest0-21swapper/400:10:006
1895999213,12cyclictest0-21swapper/221:45:014
275991190,1ptp4l21-21ksoftirqd/120:00:231
1895999194,10cyclictest0-21swapper/223:10:004
1895099194,9cyclictest0-21swapper/022:55:000
137052190,0sleep60-21swapper/621:50:008
71722180,0sleep90-21swapper/919:35:0111
71722180,0sleep90-21swapper/919:35:0111
1895099182,10cyclictest0-21swapper/022:15:010
275991170,0ptp4l0-21swapper/121:45:151
1897399173,8cyclictest0-21swapper/523:45:007
1896899172,9cyclictest0-21swapper/400:25:286
1896499174,7cyclictest0-21swapper/322:30:005
1895999173,9cyclictest0-21swapper/219:30:014
1895999173,9cyclictest0-21swapper/219:30:014
1895999172,10cyclictest0-21swapper/223:35:004
275991160,0ptp4l0-21swapper/119:15:011
275991160,0ptp4l0-21swapper/119:15:011
1899299162,9cyclictest0-21swapper/900:24:5911
1897799163,7cyclictest0-21swapper/621:15:018
1896499164,7cyclictest0-21swapper/321:55:015
1895999163,8cyclictest0-21swapper/222:55:004
1895999163,8cyclictest0-21swapper/221:00:254
1895999162,9cyclictest0-21swapper/221:50:014
275991150,0ptp4l0-21swapper/120:30:161
1900199152,7cyclictest0-21swapper/1119:55:013
1897799152,8cyclictest0-21swapper/623:30:248
1896499152,8cyclictest0-21swapper/300:00:005
1895999152,8cyclictest0-21swapper/219:45:014
1895099150,9cyclictest0-21swapper/023:25:000
1900199143,8cyclictest0-21swapper/1120:00:013
1900199143,7cyclictest0-21swapper/1100:25:003
1900199142,7cyclictest0-21swapper/1122:05:013
1900199142,7cyclictest0-21swapper/1121:35:013
1899299145,6cyclictest1311-21kworker/u24:119:50:0111
1899299143,7cyclictest0-21swapper/922:45:0011
1898699142,8cyclictest0-21swapper/821:50:2410
1898699142,7cyclictest0-21swapper/800:10:2410
1898699140,8cyclictest0-21swapper/823:35:0010
1897799143,7cyclictest0-21swapper/623:00:008
1897799143,7cyclictest0-21swapper/622:15:018
1897799143,7cyclictest0-21swapper/619:55:018
1897799142,9cyclictest16827-21kworker/u24:023:29:598
1897799142,7cyclictest0-21swapper/621:00:018
1897799141,9cyclictest1311-21kworker/u24:120:25:018
1896899142,8cyclictest0-21swapper/419:40:246
1896499142,7cyclictest0-21swapper/323:00:005
1896499142,7cyclictest0-21swapper/320:35:015
1895999142,8cyclictest0-21swapper/219:30:014
1895999142,8cyclictest0-21swapper/219:30:014
1895099143,6cyclictest0-21swapper/022:25:280
1895099141,8cyclictest0-21swapper/022:30:250
275991130,5ptp4l21-21ksoftirqd/119:45:211
275991130,1ptp4l21-21ksoftirqd/122:46:521
275991130,1ptp4l21-21ksoftirqd/120:08:581
275991130,1ptp4l21-21ksoftirqd/119:25:401
275991130,1ptp4l21-21ksoftirqd/119:25:391
275991130,1ptp4l21-21ksoftirqd/119:20:161
275991130,1ptp4l21-21ksoftirqd/119:20:161
275991130,0ptp4l0-21swapper/123:25:201
275991130,0ptp4l0-21swapper/121:54:411
275991130,0ptp4l0-21swapper/121:35:211
275991130,0ptp4l0-21swapper/121:30:151
200302130,0sleep110-21swapper/1121:55:183
1899699132,7cyclictest0-21swapper/1022:15:272
1899299133,6cyclictest0-21swapper/919:15:0111
1899299133,6cyclictest0-21swapper/919:15:0111
1898699132,7cyclictest0-21swapper/822:10:2610
1898699132,7cyclictest0-21swapper/820:30:0110
1898699132,7cyclictest0-21swapper/820:05:0110
1897799131,8cyclictest16827-21kworker/u24:022:50:008
1896899133,6cyclictest0-21swapper/422:05:016
1896899131,7cyclictest0-21swapper/422:15:016
1896499133,6cyclictest0-21swapper/323:10:005
1896499132,7cyclictest0-21swapper/322:25:015
1896499132,6cyclictest0-21swapper/320:05:015
1895099132,7cyclictest0-21swapper/022:50:000
1895099132,6cyclictest0-21swapper/020:10:270
275991120,2ptp4l26097-21fw_conntrack00:10:151
275991120,1ptp4l21-21ksoftirqd/123:55:241
275991120,1ptp4l21-21ksoftirqd/121:22:061
275991120,1ptp4l21-21ksoftirqd/121:19:541
275991120,1ptp4l21-21ksoftirqd/121:05:161
275991120,1ptp4l21-21ksoftirqd/120:54:561
275991120,1ptp4l21-21ksoftirqd/120:24:341
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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