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2025-11-07 - 13:31

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #b, 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 rackbslot8s (updated Fri Nov 07, 2025 00:44:16)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
37151872132118,9sleep10-21swapper/119:06:111
37152102130116,9sleep40-21swapper/419:06:324
37152642128114,9sleep00-21swapper/019:07:160
37153692127112,10sleep20-21swapper/219:08:462
37152272125110,10sleep30-21swapper/319:06:473
37151832123107,10sleep60-21swapper/619:06:096
37154202121107,9sleep50-21swapper/519:09:295
37151392118104,9sleep70-21swapper/719:05:307
371586699104100,3cyclictest546-21snmpd00:04:534
3715875991030,102cyclictest0-21swapper/622:31:596
3715880991020,100cyclictest0-21swapper/719:15:287
37158759910299,3cyclictest546-21snmpd21:19:006
3715880991010,101cyclictest0-21swapper/723:47:417
3715880991010,100cyclictest0-21swapper/722:02:077
3715880991010,100cyclictest0-21swapper/719:12:407
37158759910199,2cyclictest546-21snmpd20:47:526
3715875991010,99cyclictest0-21swapper/620:00:366
3715875991010,101cyclictest0-21swapper/619:37:446
37158709910199,2cyclictest546-21snmpd22:14:355
371587099101100,1cyclictest546-21snmpd00:24:085
3715870991010,100cyclictest0-21swapper/521:37:215
37158669910199,2cyclictest546-21snmpd22:18:354
3715866991010,101cyclictest0-21swapper/420:21:104
3715866991010,100cyclictest0-21swapper/423:01:514
37158639910199,2cyclictest546-21snmpd22:09:173
37158639910199,2cyclictest546-21snmpd21:47:013
371586399101100,1cyclictest546-21snmpd22:11:383
37158579910199,1cyclictest546-21snmpd23:45:552
371585399101100,1cyclictest546-21snmpd19:51:171
3715853991010,100cyclictest0-21swapper/100:14:051
37158489910199,2cyclictest546-21snmpd20:15:350
3715848991010,100cyclictest0-21swapper/022:51:090
3715848991010,100cyclictest0-21swapper/000:30:210
3715880991000,99cyclictest0-21swapper/722:08:227
3715880991000,99cyclictest0-21swapper/719:28:357
3715880991000,99cyclictest0-21swapper/700:14:337
3715880991000,100cyclictest0-21swapper/723:06:027
37158759910099,1cyclictest546-21snmpd22:26:566
37158759910099,1cyclictest546-21snmpd20:21:256
37158759910099,1cyclictest546-21snmpd00:37:426
37158759910098,2cyclictest546-21snmpd00:07:576
3715875991000,99cyclictest0-21swapper/621:55:046
3715875991000,99cyclictest0-21swapper/621:05:236
3715875991000,100cyclictest0-21swapper/623:11:076
3715875991000,100cyclictest0-21swapper/623:07:556
3715875991000,100cyclictest0-21swapper/621:29:306
3715875991000,100cyclictest0-21swapper/621:21:576
3715875991000,100cyclictest0-21swapper/620:44:196
3715875991000,0cyclictest0-21swapper/620:15:036
37158709910099,1cyclictest546-21snmpd21:28:035
37158709910099,1cyclictest546-21snmpd20:15:515
37158709910099,1cyclictest546-21snmpd00:07:455
3715870991000,99cyclictest0-21swapper/519:19:035
3715870991000,99cyclictest0-21swapper/519:14:555
3715870991000,100cyclictest0-21swapper/519:50:595
3715870991000,100cyclictest0-21swapper/500:18:065
37158669910099,1cyclictest546-21snmpd23:56:324
37158669910099,1cyclictest546-21snmpd22:51:094
37158669910099,1cyclictest546-21snmpd21:27:004
37158669910099,1cyclictest546-21snmpd20:06:544
37158669910097,3cyclictest39870502sleep400:35:424
37158669910097,2cyclictest597-21lldpd22:01:154
3715866991000,99cyclictest0-21swapper/421:51:044
3715866991000,99cyclictest0-21swapper/400:26:574
3715866991000,100cyclictest0-21swapper/422:41:214
3715866991000,100cyclictest0-21swapper/419:50:114
3715866991000,100cyclictest0-21swapper/419:45:294
37158639910099,1cyclictest546-21snmpd23:20:243
37158639910099,1cyclictest546-21snmpd23:15:163
37158639910099,1cyclictest546-21snmpd23:05:423
37158639910099,1cyclictest546-21snmpd22:27:463
37158639910099,1cyclictest546-21snmpd21:58:253
37158579910099,1cyclictest546-21snmpd22:17:232
37158579910099,1cyclictest546-21snmpd21:10:202
37158579910099,1cyclictest546-21snmpd20:11:572
3715857991000,99cyclictest0-21swapper/220:40:072
3715857991000,99cyclictest0-21swapper/219:33:262
3715857991000,100cyclictest0-21swapper/200:15:182
37158539910099,1cyclictest546-21snmpd23:58:261
37158539910099,1cyclictest546-21snmpd23:29:071
37158539910099,1cyclictest546-21snmpd22:53:061
37158539910099,1cyclictest546-21snmpd21:33:381
37158539910099,1cyclictest546-21snmpd20:54:561
37158539910099,1cyclictest546-21snmpd20:23:521
37158539910099,1cyclictest546-21snmpd20:16:181
37158539910099,1cyclictest546-21snmpd19:47:201
37158539910099,0cyclictest546-21snmpd22:48:051
37158539910098,1cyclictest546-21snmpd19:19:311
3715853991000,100cyclictest0-21swapper/123:40:151
3715853991000,100cyclictest0-21swapper/122:05:141
3715853991000,100cyclictest0-21swapper/121:28:091
3715853991000,100cyclictest0-21swapper/121:20:151
3715853991000,100cyclictest0-21swapper/121:15:001
3715853991000,100cyclictest0-21swapper/119:35:441
37158489910099,1cyclictest546-21snmpd23:35:070
37158489910099,1cyclictest546-21snmpd23:01:450
37158489910099,1cyclictest546-21snmpd00:38:420
37158489910098,2cyclictest546-21snmpd21:41:550
37158489910098,1cyclictest3761228-21cat20:35:170
3715848991000,99cyclictest0-21swapper/022:18:230
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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