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2026-06-16 - 20:48

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #8, slot #2

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.
Unexpectedly long latencies may be caused by SMIs
Total number of samples: 100 million
Resolution of latency scale: normal
Duration: 5 hours, 33 minutes
Compare latency of primary with shadow system
Characteristics of the 100 highest latencies:
System rack8slot2s.osadl.org (updated Tue Jun 16, 2026 12:43:46)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3117810997766,7cyclictest86-21hwrng11:13:003
3117810997766,7cyclictest86-21hwrng11:13:003
3117807997768,5cyclictest86-21hwrng12:27:450
3117808997467,3cyclictest0-21swapper/107:22:361
3117810997366,4cyclictest86-21hwrng10:06:273
3117810997264,5cyclictest86-21hwrng11:35:323
3117810997264,5cyclictest86-21hwrng11:35:323
3117808997266,3cyclictest0-21swapper/109:09:061
3117808997266,3cyclictest0-21swapper/109:09:061
3117810997164,5cyclictest86-21hwrng12:08:183
3117810997164,5cyclictest86-21hwrng12:08:183
3117810997163,5cyclictest86-21hwrng10:24:533
3117808997165,3cyclictest0-21swapper/111:16:051
3117808997165,3cyclictest0-21swapper/111:16:051
3117808997161,6cyclictest0-21swapper/110:31:011
3117808997161,6cyclictest0-21swapper/110:31:011
3117807997165,4cyclictest86-21hwrng09:11:090
3117810997064,4cyclictest86-21hwrng10:48:263
3117810996961,5cyclictest86-21hwrng11:06:523
3117809996965,1cyclictest0-21swapper/207:22:362
3117809996964,2cyclictest0-21swapper/209:09:062
3117809996964,2cyclictest0-21swapper/209:09:062
3117810996860,5cyclictest86-21hwrng10:44:203
3117809996864,2cyclictest0-21swapper/211:16:052
3117809996864,2cyclictest0-21swapper/211:16:052
3117808996861,4cyclictest0-21swapper/107:53:201
3117809996760,4cyclictest0-21swapper/210:31:012
3117809996760,4cyclictest0-21swapper/210:31:012
3117808996761,3cyclictest0-21swapper/107:55:221
3117810996657,6cyclictest86-21hwrng10:16:413
3117810996559,4cyclictest86-21hwrng12:19:343
3117810996556,6cyclictest86-21hwrng12:11:223
3117809996559,3cyclictest0-21swapper/207:53:202
3117808996559,3cyclictest0-21swapper/109:48:011
3117808996559,3cyclictest0-21swapper/109:48:011
3117808996557,4cyclictest0-21swapper/109:59:171
3117808996557,4cyclictest0-21swapper/109:59:171
3117807996558,5cyclictest86-21hwrng08:15:510
3117810996456,5cyclictest86-21hwrng11:20:103
3117809996456,4cyclictest0-21swapper/209:59:172
3117809996456,4cyclictest0-21swapper/209:59:172
3117808996458,3cyclictest0-21swapper/110:27:571
3117808996458,3cyclictest0-21swapper/110:27:571
3117808996458,3cyclictest0-21swapper/109:21:231
3117807996455,5cyclictest86-21hwrng09:27:320
3117807996455,5cyclictest86-21hwrng09:27:320
3117809996359,1cyclictest0-21swapper/207:55:222
3117808996356,4cyclictest0-21swapper/110:01:191
3117808996356,4cyclictest0-21swapper/110:01:191
3117807996356,4cyclictest86-21hwrng09:39:490
3117807996356,4cyclictest86-21hwrng09:39:490
3117807996355,5cyclictest86-21hwrng09:18:190
3117807996355,5cyclictest86-21hwrng09:18:190
3117807996355,5cyclictest86-21hwrng07:40:010
3117809996258,1cyclictest0-21swapper/209:48:012
3117809996258,1cyclictest0-21swapper/209:48:012
3117809996156,2cyclictest0-21swapper/209:21:232
3117809996154,2cyclictest0-21swapper/210:26:552
3117809996154,2cyclictest0-21swapper/210:26:552
3117808996053,4cyclictest0-21swapper/108:03:341
3117809995954,3cyclictest0-21swapper/210:01:192
3117809995954,3cyclictest0-21swapper/210:01:192
3117808995951,4cyclictest0-21swapper/112:26:441
3117807995951,6cyclictest86-21hwrng10:32:030
3117807995951,6cyclictest86-21hwrng10:32:030
3117808995851,4cyclictest0-21swapper/112:23:401
3117808995851,4cyclictest0-21swapper/111:24:161
3117807995852,4cyclictest86-21hwrng10:59:420
3117807995852,4cyclictest86-21hwrng10:59:420
3117807995850,5cyclictest86-21hwrng07:48:120
3117808995751,3cyclictest0-21swapper/108:18:561
3117809995651,3cyclictest0-21swapper/208:03:342
3117809995650,3cyclictest0-21swapper/212:26:442
3117809995650,3cyclictest0-21swapper/212:23:402
3117809995650,3cyclictest0-21swapper/211:24:162
3117809995650,3cyclictest0-21swapper/208:18:562
3117808995650,3cyclictest0-21swapper/110:56:371
3117808995650,3cyclictest0-21swapper/110:56:371
3117808995548,4cyclictest0-21swapper/108:20:581
3117808995548,4cyclictest0-21swapper/108:20:581
3117810995447,5cyclictest86-21hwrng10:39:133
3117810995447,5cyclictest86-21hwrng10:39:133
3117809995448,3cyclictest0-21swapper/210:56:372
3117809995448,3cyclictest0-21swapper/210:56:372
3117808995448,3cyclictest0-21swapper/109:31:381
3117808995447,4cyclictest0-21swapper/111:14:021
3117808995447,4cyclictest0-21swapper/111:14:021
3117809995347,3cyclictest0-21swapper/209:31:382
3117807995345,4cyclictest86-21hwrng09:55:110
3117807995345,4cyclictest86-21hwrng09:55:110
3117810995245,4cyclictest86-21hwrng12:38:003
3117810995245,4cyclictest86-21hwrng12:38:003
3117809995246,3cyclictest0-21swapper/208:20:582
3117809995246,3cyclictest0-21swapper/208:20:582
3117808995245,4cyclictest0-21swapper/108:58:521
3117808995245,4cyclictest0-21swapper/108:58:521
3117810995143,5cyclictest86-21hwrng11:53:583
3117808995145,3cyclictest0-21swapper/107:26:421
3117808995145,3cyclictest0-21swapper/107:26:421
3117808995145,3cyclictest0-21swapper/107:17:291
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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