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2026-05-31 - 19:35

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 Sun May 31, 2026 00:46:11)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
9686212390370,13sleep20-21swapper/219:08:218
9686992376357,12sleep10-21swapper/119:09:241
9683932374316,13sleep90-21swapper/919:05:4715
9686832370349,14sleep40-21swapper/419:09:1110
9685692368346,20sleep140-21swapper/1419:07:436
9686942360340,13sleep130-21swapper/1319:09:195
9685612356336,13sleep100-21swapper/1019:07:402
9684412356318,30sleep30-21swapper/319:06:139
9684982355335,13sleep80-21swapper/819:06:5014
9683812351330,14sleep60-21swapper/619:05:4312
9687222349329,13sleep50-21swapper/519:09:4311
9685622349330,12sleep110-21swapper/1119:07:413
9684222348327,14sleep70-21swapper/719:06:0013
9686982344325,13sleep00-21swapper/019:09:220
9685442344324,13sleep150-21swapper/1519:07:297
9683622340320,13sleep120-21swapper/1219:05:334
969130994141,0cyclictest0-21swapper/619:59:5312
96915399382,11cyclictest0-21swapper/1423:36:566
96915399382,11cyclictest0-21swapper/1421:58:056
96915399382,11cyclictest0-21swapper/1421:47:066
96915399371,11cyclictest0-21swapper/1422:31:026
96915399371,11cyclictest0-21swapper/1422:20:036
96915399371,11cyclictest0-21swapper/1422:09:036
96915399371,11cyclictest0-21swapper/1421:25:086
96915399371,11cyclictest0-21swapper/1420:52:106
96915399371,11cyclictest0-21swapper/1420:30:136
96915399371,11cyclictest0-21swapper/1400:09:536
969146993730,1cyclictest0-21swapper/1222:35:154
969130993636,0cyclictest0-21swapper/623:50:1712
969153993510,11cyclictest0-21swapper/1422:42:016
96915399350,10cyclictest0-21swapper/1422:53:006
96915399350,10cyclictest0-21swapper/1400:31:516
969116993534,0cyclictest0-21swapper/222:22:218
969116993534,0cyclictest0-21swapper/221:42:538
969130993434,0cyclictest0-21swapper/623:19:2712
969130993434,0cyclictest0-21swapper/622:32:5512
96915399339,11cyclictest0-21swapper/1423:58:546
96915399339,11cyclictest0-21swapper/1421:03:106
96915399339,10cyclictest0-21swapper/1423:03:596
969130993333,0cyclictest0-21swapper/623:13:5012
969130993333,0cyclictest0-21swapper/622:23:0312
969130993333,0cyclictest0-21swapper/620:31:4812
969130993333,0cyclictest0-21swapper/600:14:2912
96912599330,30cyclictest0-21swapper/522:57:3411
96911699330,32cyclictest1299418-21ssh00:05:278
96911699330,30cyclictest1338297-21ssh00:36:058
96911699330,30cyclictest1318973-21ssh00:21:038
96911699330,30cyclictest0-21swapper/223:09:108
96915399329,10cyclictest0-21swapper/1400:20:526
96915399328,11cyclictest0-21swapper/1419:46:166
96915399328,11cyclictest0-21swapper/1419:13:206
96915399328,10cyclictest0-21swapper/1420:08:156
96915399328,10cyclictest0-21swapper/1419:57:156
96913099323,29cyclictest1284830-21kworker/6:1-mm_percpu_wq00:26:5512
969130993232,0cyclictest0-21swapper/623:47:0712
969130993232,0cyclictest0-21swapper/623:44:0212
969130993232,0cyclictest0-21swapper/623:21:5712
969130993232,0cyclictest0-21swapper/623:06:5312
969130993232,0cyclictest0-21swapper/623:03:1112
969130993232,0cyclictest0-21swapper/622:09:3412
969130993232,0cyclictest0-21swapper/622:04:4712
969130993232,0cyclictest0-21swapper/621:32:3212
969130993232,0cyclictest0-21swapper/621:27:2812
969130993224,4cyclictest0-21swapper/620:25:3012
969125993230,2cyclictest0-21swapper/523:31:2311
96911699320,29cyclictest0-21swapper/223:55:498
96911699320,29cyclictest0-21swapper/223:52:478
96911699320,29cyclictest0-21swapper/223:47:078
96911699320,29cyclictest0-21swapper/223:41:058
96911699320,29cyclictest0-21swapper/223:35:138
96911699320,29cyclictest0-21swapper/223:31:378
96911699320,29cyclictest0-21swapper/223:26:058
96911699320,29cyclictest0-21swapper/223:22:338
96911699320,29cyclictest0-21swapper/223:15:518
96911699320,29cyclictest0-21swapper/223:10:178
96911699320,29cyclictest0-21swapper/223:00:278
96911699320,29cyclictest0-21swapper/222:55:598
96911699320,29cyclictest0-21swapper/222:51:178
96911699320,29cyclictest0-21swapper/222:45:058
96911699320,29cyclictest0-21swapper/222:40:018
96911699320,29cyclictest0-21swapper/222:36:528
96911699320,29cyclictest0-21swapper/222:33:198
96911699320,29cyclictest0-21swapper/222:26:548
96911699320,29cyclictest0-21swapper/222:17:038
96911699320,29cyclictest0-21swapper/222:17:038
96911699320,29cyclictest0-21swapper/222:11:408
96911699320,29cyclictest0-21swapper/222:11:408
96911699320,29cyclictest0-21swapper/222:08:578
96911699320,29cyclictest0-21swapper/222:00:298
96911699320,29cyclictest0-21swapper/221:55:048
96911699320,29cyclictest0-21swapper/221:50:198
96911699320,29cyclictest0-21swapper/221:45:188
96911699320,29cyclictest0-21swapper/221:36:128
96911699320,29cyclictest0-21swapper/221:30:058
96911699320,29cyclictest0-21swapper/221:28:028
96911699320,29cyclictest0-21swapper/221:20:538
96911699320,29cyclictest0-21swapper/221:15:588
96911699320,29cyclictest0-21swapper/221:10:398
96911699320,29cyclictest0-21swapper/221:06:148
96911699320,29cyclictest0-21swapper/221:00:238
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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