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2024-11-22 - 05:48

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 50 highest latencies:
System rack0slot8s.osadl.org (updated Fri Nov 22, 2024 00:44:51)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
275991960,87ptp4l0-21swapper/119:06:351
1985626755,10sleep50-21swapper/519:07:557
1968126756,9sleep00-21swapper/019:05:250
1970726554,9sleep110-21swapper/1119:05:483
1970626554,9sleep100-21swapper/1019:05:472
1996426451,10sleep70-21swapper/719:09:339
1817026452,9sleep40-21swapper/419:05:186
1670326453,9sleep60-21swapper/619:05:088
235612510,0sleep100-21swapper/1000:10:192
275991220,1ptp4l21-21ksoftirqd/120:35:131
2036699228,9cyclictest0-21swapper/021:20:000
312652180,0sleep333-21ksoftirqd/320:45:145
275991180,2ptp4l3111-21cat22:55:221
2040899183,9cyclictest0-21swapper/919:40:0011
2039999182,10cyclictest8222-21kworker/u24:023:20:009
2040899172,9cyclictest0-21swapper/923:35:0011
275991160,1ptp4l21-21ksoftirqd/122:35:161
275991160,1ptp4l21-21ksoftirqd/122:35:161
275991160,1ptp4l21-21ksoftirqd/120:55:101
275991160,0ptp4l0-21swapper/119:15:261
275991160,0ptp4l0-21swapper/100:15:141
2040899163,8cyclictest0-21swapper/920:50:0111
2040899163,8cyclictest0-21swapper/900:05:0011
2040899160,8cyclictest0-21swapper/922:50:0011
2039999162,9cyclictest0-21swapper/721:10:019
2038599162,8cyclictest0-21swapper/423:05:266
2038099162,9cyclictest0-21swapper/300:00:005
2037699162,9cyclictest0-21swapper/221:05:014
2037199163,8cyclictest0-21swapper/121:30:011
2037199161,9cyclictest0-21swapper/119:55:001
199132167,7sleep80-21swapper/819:08:4510
275991150,6ptp4l0-21swapper/121:35:221
275991150,1ptp4l21-21ksoftirqd/123:00:191
275991150,1ptp4l21-21ksoftirqd/119:30:111
275991150,1ptp4l10417-21munin-run20:20:001
275991150,0ptp4l0-21swapper/120:25:101
275991150,0ptp4l0-21swapper/120:20:161
275991150,0ptp4l0-21swapper/119:35:231
275991150,0ptp4l0-21swapper/100:35:141
2040899154,6cyclictest0-21swapper/920:45:0111
2040899151,8cyclictest0-21swapper/923:05:0111
2039999153,7cyclictest0-21swapper/721:30:009
2039999153,7cyclictest0-21swapper/700:30:019
2039599153,8cyclictest0-21swapper/619:45:268
2038099153,8cyclictest0-21swapper/300:25:005
2038099151,9cyclictest0-21swapper/320:25:005
275991140,6ptp4l0-21swapper/122:20:211
275991140,6ptp4l0-21swapper/122:20:211
275991140,2ptp4l20268-21aten2_r3power_v19:50:121
275991140,1ptp4l21-21ksoftirqd/122:10:221
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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