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2026-05-12 - 17:14

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 Tue May 12, 2026 12:44:18)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
22838042120105,10sleep70-21swapper/707:05:537
22839472119105,9sleep20-21swapper/207:07:572
2283919211889,10sleep30-21swapper/307:07:343
22839722117103,9sleep00-21swapper/007:08:190
22839672117103,9sleep40-21swapper/407:08:154
22838632117101,11sleep10-21swapper/107:06:431
2283847211499,10sleep50-21swapper/507:06:315
2281974211499,10sleep60-21swapper/607:05:056
228432699110110,0cyclictest0-21swapper/212:01:112
2284318991030,100cyclictest0-21swapper/009:21:310
22843359910299,3cyclictest553-21snmpd10:25:014
22843239910299,3cyclictest553-21snmpd10:15:031
2284323991020,0cyclictest0-21swapper/109:20:151
22843189910299,3cyclictest553-21snmpd07:25:360
228431899102100,2cyclictest553-21snmpd11:48:030
2284318991020,100cyclictest0-21swapper/010:35:100
22843469910199,2cyclictest0-21swapper/712:08:517
2284346991010,99cyclictest0-21swapper/712:36:087
2284346991010,99cyclictest0-21swapper/712:36:077
2284346991010,99cyclictest0-21swapper/712:27:377
2284346991010,101cyclictest0-21swapper/711:49:487
2284346991010,101cyclictest0-21swapper/707:13:577
2284346991010,100cyclictest0-21swapper/708:39:097
22843429910199,2cyclictest553-21snmpd11:08:056
22843429910199,1cyclictest553-21snmpd08:56:406
2284342991010,100cyclictest0-21swapper/610:19:546
22843409910199,2cyclictest553-21snmpd10:01:455
228434099101100,1cyclictest553-21snmpd11:59:185
2284340991010,100cyclictest0-21swapper/510:28:405
22843359910199,2cyclictest553-21snmpd12:38:344
22843359910199,2cyclictest553-21snmpd12:38:344
22843359910199,2cyclictest553-21snmpd09:45:084
22843359910199,2cyclictest553-21snmpd09:15:584
2284335991010,100cyclictest0-21swapper/408:26:064
2284335991010,100cyclictest0-21swapper/408:26:064
2284335991010,0cyclictest0-21swapper/408:59:464
22843319910199,2cyclictest553-21snmpd11:27:353
22843319910199,2cyclictest553-21snmpd08:41:453
22843269910199,2cyclictest553-21snmpd09:05:162
228432699101100,1cyclictest553-21snmpd08:12:592
2284326991010,100cyclictest0-21swapper/211:35:082
22843239910199,2cyclictest553-21snmpd12:04:211
22843239910199,2cyclictest553-21snmpd11:49:331
22843239910199,2cyclictest553-21snmpd08:02:501
22843239910199,2cyclictest2486104-21cat11:15:151
2284323991010,101cyclictest0-21swapper/111:59:121
2284323991010,101cyclictest0-21swapper/111:14:321
2284323991010,101cyclictest0-21swapper/109:30:151
2284323991010,100cyclictest0-21swapper/112:06:391
2284323991010,100cyclictest0-21swapper/110:30:141
2284323991010,100cyclictest0-21swapper/107:39:461
2284346991000,99cyclictest0-21swapper/711:06:507
2284346991000,99cyclictest0-21swapper/708:19:567
2284346991000,99cyclictest0-21swapper/707:27:517
2284346991000,100cyclictest0-21swapper/712:18:257
2284346991000,100cyclictest0-21swapper/710:20:487
2284346991000,100cyclictest0-21swapper/709:59:517
22843429910099,1cyclictest553-21snmpd11:15:566
22843429910099,1cyclictest553-21snmpd07:23:246
22843429910098,1cyclictest605-21lldpd11:03:556
2284342991000,99cyclictest0-21swapper/608:49:526
2284342991000,99cyclictest0-21swapper/608:30:136
22843409910099,1cyclictest553-21snmpd12:23:075
22843409910099,1cyclictest553-21snmpd11:14:205
22843409910099,1cyclictest553-21snmpd10:51:015
22843409910099,1cyclictest553-21snmpd10:34:045
22843409910099,1cyclictest2306844-21cat07:50:165
2284340991000,99cyclictest2424216-21kworker/5:210:22:475
2284340991000,99cyclictest0-21swapper/512:33:225
2284340991000,99cyclictest0-21swapper/512:33:225
2284340991000,99cyclictest0-21swapper/509:07:045
2284340991000,99cyclictest0-21swapper/507:26:275
2284340991000,99cyclictest0-21swapper/507:17:245
2284340991000,100cyclictest0-21swapper/509:04:195
22843359910099,1cyclictest553-21snmpd12:26:254
22843359910099,1cyclictest553-21snmpd11:58:574
22843359910098,2cyclictest553-21snmpd12:09:484
22843359910097,2cyclictest553-21snmpd10:32:014
2284335991000,100cyclictest0-21swapper/408:13:444
22843319910099,1cyclictest553-21snmpd12:16:583
22843319910099,1cyclictest553-21snmpd11:32:113
22843319910099,1cyclictest553-21snmpd10:53:523
22843319910099,1cyclictest553-21snmpd09:34:383
22843319910099,1cyclictest553-21snmpd07:17:213
22843319910099,0cyclictest553-21snmpd11:40:483
22843319910098,2cyclictest553-21snmpd09:44:533
22843319910098,2cyclictest553-21snmpd08:30:393
22843319910097,3cyclictest553-21snmpd11:24:593
228433199100100,0cyclictest553-21snmpd09:20:313
22843269910099,1cyclictest553-21snmpd07:50:252
22843269910099,1cyclictest0-21swapper/209:55:512
2284326991000,99cyclictest0-21swapper/212:17:192
2284326991000,99cyclictest0-21swapper/209:50:322
2284326991000,100cyclictest0-21swapper/212:11:102
2284326991000,100cyclictest0-21swapper/212:05:162
22843239910099,1cyclictest553-21snmpd10:37:341
22843239910099,1cyclictest553-21snmpd08:32:571
22843239910099,1cyclictest553-21snmpd07:27:061
22843239910098,2cyclictest553-21snmpd11:50:061
22843239910098,2cyclictest553-21snmpd09:52:051
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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