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2025-05-09 - 05:44

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.
Unexpectedly long latencies may be caused by SMIs
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 Fri May 09, 2025 00:44:47)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2759911080,58ptp4l0-21swapper/119:09:311
94980790,74rtkit-daemon0-21swapper/1019:06:512
674027058,9sleep00-21swapper/019:05:070
909726755,9sleep50-21swapper/519:05:237
235302660,0sleep80-21swapper/821:30:1710
981326453,9sleep110-21swapper/1119:06:543
980926452,10sleep70-21swapper/719:06:499
980626453,9sleep40-21swapper/419:06:466
984926251,9sleep60-21swapper/619:07:248
294952550,0sleep110-21swapper/1120:15:133
111772540,0sleep10-21swapper/123:20:241
20222530,0sleep30-21swapper/319:40:015
224882230,0sleep50-21swapper/522:10:207
10438992120,1cyclictest0-21swapper/1000:10:182
1041599182,10cyclictest0-21swapper/523:00:247
1044299173,7cyclictest0-21swapper/1123:00:013
1044299170,17cyclictest0-21swapper/1100:05:163
1042499172,8cyclictest0-21swapper/722:10:009
1042499172,10cyclictest0-21swapper/700:05:009
1041599173,8cyclictest0-21swapper/519:10:237
1041599173,8cyclictest0-21swapper/519:10:227
1039999173,9cyclictest0-21swapper/223:10:004
1039999173,10cyclictest0-21swapper/219:30:004
1039999172,9cyclictest0-21swapper/222:55:014
1039599173,9cyclictest0-21swapper/123:55:001
1039599173,8cyclictest0-21swapper/123:50:011
1039599172,9cyclictest0-21swapper/121:55:001
98102167,7sleep80-21swapper/819:06:5110
275991160,1ptp4l21-21ksoftirqd/119:15:211
275991160,1ptp4l21-21ksoftirqd/119:15:201
275991160,0ptp4l0-21swapper/122:40:241
1043399161,9cyclictest0-21swapper/919:25:0111
1043399160,3cyclictest0-21swapper/921:00:1911
1043399160,10cyclictest0-21swapper/919:40:0111
1042999164,7cyclictest0-21swapper/821:30:0110
1042499163,8cyclictest0-21swapper/722:45:259
1042499162,9cyclictest5984-21kworker/u24:019:15:019
1042499162,9cyclictest5984-21kworker/u24:019:15:019
1040499162,8cyclictest0-21swapper/323:50:005
1039999163,8cyclictest0-21swapper/223:45:004
1039999163,8cyclictest0-21swapper/221:15:004
1039999163,8cyclictest0-21swapper/200:15:004
1039999162,9cyclictest0-21swapper/219:10:004
275991150,1ptp4l21-21ksoftirqd/122:55:171
275991150,0ptp4l0-21swapper/122:50:181
275991150,0ptp4l0-21swapper/119:30:001
1043399153,8cyclictest0-21swapper/923:05:0011
1043399153,7cyclictest0-21swapper/922:25:0011
1043399153,7cyclictest0-21swapper/920:00:0011
1042999153,8cyclictest0-21swapper/820:25:0110
1042999153,7cyclictest0-21swapper/823:55:0010
1042999152,8cyclictest0-21swapper/822:20:0010
1042999152,8cyclictest0-21swapper/820:50:0110
1042999150,9cyclictest0-21swapper/820:30:0110
1042999150,14cyclictest0-21swapper/823:45:1810
1042499151,9cyclictest0-21swapper/722:45:009
10420991512,2cyclictest0-21swapper/622:35:008
1040499153,7cyclictest0-21swapper/323:30:005
1040499152,8cyclictest0-21swapper/321:20:015
1039999153,8cyclictest0-21swapper/222:10:004
1039999153,8cyclictest0-21swapper/219:45:004
1039999153,8cyclictest0-21swapper/200:25:014
1039999152,8cyclictest0-21swapper/222:00:274
1039599153,8cyclictest0-21swapper/121:40:001
1039599153,8cyclictest0-21swapper/121:15:001
275991140,1ptp4l21-21ksoftirqd/120:05:241
275991140,0ptp4l0-21swapper/120:40:231
275991140,0ptp4l0-21swapper/120:00:181
1044299143,8cyclictest0-21swapper/1119:40:013
1044299143,6cyclictest0-21swapper/1100:24:213
1044299142,7cyclictest0-21swapper/1123:45:013
1043399142,7cyclictest0-21swapper/922:10:2411
1043399142,7cyclictest0-21swapper/919:10:0111
1043399142,7cyclictest0-21swapper/919:10:0011
1042999142,7cyclictest0-21swapper/819:40:0010
1041599143,8cyclictest0-21swapper/521:15:027
1041599143,6cyclictest0-21swapper/520:55:017
1041599142,8cyclictest0-21swapper/522:35:017
1041599142,7cyclictest0-21swapper/519:20:017
1041599142,7cyclictest0-21swapper/519:20:007
1040499143,6cyclictest0-21swapper/322:34:595
1040499142,7cyclictest0-21swapper/322:50:005
1040499141,2cyclictest0-21swapper/300:00:205
1039999142,8cyclictest0-21swapper/222:05:014
1039599143,7cyclictest0-21swapper/123:55:001
275991130,1ptp4l21-21ksoftirqd/122:25:221
275991130,0ptp4l0-21swapper/123:00:231
275991130,0ptp4l0-21swapper/121:25:251
275991130,0ptp4l0-21swapper/119:50:221
1044299132,7cyclictest0-21swapper/1120:30:003
1044299132,6cyclictest0-21swapper/1121:50:003
1044299131,7cyclictest0-21swapper/1120:25:013
1043399132,6cyclictest0-21swapper/923:30:0111
1042999132,7cyclictest0-21swapper/823:25:0010
1042499133,6cyclictest0-21swapper/721:10:019
1041599130,3cyclictest0-21swapper/523:35:187
10399991311,1cyclictest581-21turbostat21:45:004
1039599132,7cyclictest0-21swapper/121:15:241
275991120,1ptp4l21-21ksoftirqd/123:43:151
275991120,1ptp4l21-21ksoftirqd/122:17:411
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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