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2025-12-26 - 12:55

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #0, slot #4

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 rack0slot4s.osadl.org (updated Fri Dec 26, 2025 00:46:39)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2105442379359,13sleep10-21swapper/119:09:341
2104992370333,13sleep150-21swapper/1519:09:007
2103072369349,13sleep30-21swapper/319:06:239
2104292366327,13sleep50-21swapper/519:08:0211
2102612365342,6sleep100-21swapper/1019:05:422
2104562361342,12sleep130-21swapper/1319:08:265
2103182359340,12sleep80-21swapper/819:06:2814
2105012351332,12sleep00-21swapper/019:09:010
2102522350331,13sleep20-21swapper/219:05:348
2104712349327,14sleep40-21swapper/419:08:3210
2104022347307,13sleep120-21swapper/1219:07:374
2102742347327,13sleep60-21swapper/619:05:5412
2105292345326,13sleep90-21swapper/919:09:2615
2071182345324,14sleep70-21swapper/719:05:0713
2103382342321,14sleep110-21swapper/1119:06:473
2103242342320,14sleep140-21swapper/1419:06:346
211043994949,0cyclictest0-21swapper/523:44:0811
211052994238,4cyclictest154993-21kworker/u32:2+flush-259:019:20:1813
211028994218,11cyclictest0-21swapper/121:08:081
211063994138,3cyclictest372721-21kworker/11:1+events22:30:363
211043994141,0cyclictest0-21swapper/522:16:3011
211043994137,4cyclictest326957-21kworker/5:1-events21:44:2111
211028994128,13cyclictest0-21swapper/120:24:121
211043994040,0cyclictest0-21swapper/500:23:4011
211063993939,0cyclictest430927-21kworker/11:0+events00:15:183
211043993939,0cyclictest0-21swapper/519:52:2411
211043993939,0cyclictest0-21swapper/519:32:3811
211063993838,0cyclictest4064600-21kworker/11:0+events22:15:003
211043993838,0cyclictest0-21swapper/523:24:3111
211043993838,0cyclictest0-21swapper/522:06:3611
211043993838,0cyclictest0-21swapper/521:09:0211
211032993838,0cyclictest0-21swapper/223:27:428
211032993838,0cyclictest0-21swapper/223:05:568
211063993737,0cyclictest4064600-21kworker/11:0+events21:15:283
211063993737,0cyclictest372721-21kworker/11:1+events23:05:223
211063993736,1cyclictest430927-21kworker/11:0+events23:35:163
211063993736,1cyclictest372721-21kworker/11:1+events22:58:003
211063993730,4cyclictest4064600-21kworker/11:0+events19:53:443
211043993737,0cyclictest0-21swapper/523:54:4611
211043993737,0cyclictest0-21swapper/523:12:5211
211043993737,0cyclictest0-21swapper/521:13:0211
211043993737,0cyclictest0-21swapper/520:41:4811
211043993737,0cyclictest0-21swapper/519:46:4811
211043993737,0cyclictest0-21swapper/519:41:5811
211032993733,4cyclictest0-21swapper/223:44:098
211063993636,0cyclictest430927-21kworker/11:0+events23:48:353
211063993636,0cyclictest430927-21kworker/11:0+events00:00:143
211063993636,0cyclictest4064600-21kworker/11:0+events21:30:183
211063993636,0cyclictest4064600-21kworker/11:0+events21:03:583
211063993636,0cyclictest372721-21kworker/11:1+events22:45:183
211063993636,0cyclictest372721-21kworker/11:1+events22:38:223
211063993628,4cyclictest4064600-21kworker/11:0+events20:44:563
211052993628,4cyclictest88-21ksoftirqd/720:45:2413
211043993636,0cyclictest0-21swapper/522:14:1011
211043993636,0cyclictest0-21swapper/521:03:4211
211043993636,0cyclictest0-21swapper/519:17:5011
211032993636,0cyclictest0-21swapper/222:16:308
211032993636,0cyclictest0-21swapper/221:12:228
211063993535,0cyclictest430927-21kworker/11:0+events23:55:223
211063993535,0cyclictest4064600-21kworker/11:0+events21:45:203
211063993535,0cyclictest4064600-21kworker/11:0+events21:40:183
211063993535,0cyclictest4064600-21kworker/11:0+events21:25:163
211063993535,0cyclictest4064600-21kworker/11:0+events21:20:223
211063993535,0cyclictest4064600-21kworker/11:0+events20:45:263
211063993535,0cyclictest4064600-21kworker/11:0+events20:16:543
211063993535,0cyclictest4064600-21kworker/11:0+events19:41:063
211063993535,0cyclictest372721-21kworker/11:1+events23:18:243
211063993535,0cyclictest372721-21kworker/11:1+events23:00:283
211063993535,0cyclictest372721-21kworker/11:1+events22:50:273
211052993527,4cyclictest222736-21kworker/7:2-events22:15:0013
211043993535,0cyclictest0-21swapper/523:28:3811
211032993534,1cyclictest385191-21kworker/u32:1+flush-259:000:09:448
211032993534,1cyclictest0-21swapper/219:48:048
211063993434,0cyclictest430927-21kworker/11:0+events23:34:123
211063993434,0cyclictest430927-21kworker/11:0+events00:30:003
211063993434,0cyclictest430927-21kworker/11:0+events00:05:183
211063993434,0cyclictest4064600-21kworker/11:0+events22:00:203
211063993434,0cyclictest4064600-21kworker/11:0+events22:00:203
211063993434,0cyclictest4064600-21kworker/11:0+events21:55:203
211063993434,0cyclictest4064600-21kworker/11:0+events21:55:203
211063993434,0cyclictest4064600-21kworker/11:0+events21:37:443
211063993434,0cyclictest4064600-21kworker/11:0+events21:05:003
211063993434,0cyclictest4064600-21kworker/11:0+events20:30:143
211063993434,0cyclictest4064600-21kworker/11:0+events20:25:283
211063993434,0cyclictest4064600-21kworker/11:0+events20:24:423
211063993434,0cyclictest4064600-21kworker/11:0+events20:10:243
211063993434,0cyclictest372721-21kworker/11:1+events23:25:003
211063993434,0cyclictest372721-21kworker/11:1+events22:26:313
211063993433,1cyclictest430927-21kworker/11:0+events00:10:283
211054993434,0cyclictest0-21swapper/819:10:1414
211052993430,4cyclictest0-21swapper/721:33:3213
211052993426,4cyclictest400078-21cpuspeed_turbos22:55:1413
211052993425,0cyclictest211rcu_preempt19:40:2013
211043993434,0cyclictest0-21swapper/521:34:0411
211032993434,0cyclictest0-21swapper/200:31:418
211032993430,3cyclictest0-21swapper/219:53:448
211063993333,0cyclictest430927-21kworker/11:0+events23:50:163
211063993333,0cyclictest4064600-21kworker/11:0+events22:05:163
211063993333,0cyclictest4064600-21kworker/11:0+events21:10:223
211063993333,0cyclictest4064600-21kworker/11:0+events20:55:223
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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