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2026-04-16 - 03:27

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 Thu Apr 16, 2026 00:44:17)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
37993042121107,9sleep70-21swapper/719:06:437
37994142119105,9sleep50-21swapper/519:08:165
37993772118103,10sleep60-21swapper/619:07:456
37992172118103,10sleep30-21swapper/319:05:263
37993732117102,10sleep20-21swapper/219:07:412
3799218211399,9sleep40-21swapper/419:05:274
3799280210792,10sleep10-21swapper/119:06:201
3799268210793,9sleep00-21swapper/019:06:110
37997659910399,4cyclictest553-21snmpd19:25:511
37997849910299,3cyclictest553-21snmpd23:43:126
37997849910299,3cyclictest553-21snmpd23:13:456
379978099102100,1cyclictest553-21snmpd20:34:385
37997749910299,3cyclictest553-21snmpd22:19:223
37997749910299,3cyclictest553-21snmpd21:15:173
3799769991022,1cyclictest31-21ksoftirqd/222:53:362
3799769991022,1cyclictest31-21ksoftirqd/222:40:522
3799769991022,1cyclictest31-21ksoftirqd/200:22:202
3799769991021,101cyclictest31-21ksoftirqd/219:51:182
3799769991021,100cyclictest31-21ksoftirqd/219:21:082
37997659910299,3cyclictest553-21snmpd22:47:161
37997659910299,3cyclictest553-21snmpd22:40:251
3799765991020,102cyclictest0-21swapper/121:31:221
3799765991020,102cyclictest0-21swapper/121:20:141
3799788991010,100cyclictest0-21swapper/723:17:367
3799788991010,100cyclictest0-21swapper/719:39:457
3799788991010,100cyclictest0-21swapper/719:28:467
3799784991010,100cyclictest0-21swapper/622:35:586
37997809910199,2cyclictest553-21snmpd23:55:315
37997809910199,1cyclictest553-21snmpd00:17:345
37997769910199,2cyclictest553-21snmpd22:23:304
37997769910199,2cyclictest553-21snmpd21:42:204
3799776991010,100cyclictest0-21swapper/419:35:064
37997749910199,2cyclictest553-21snmpd22:59:583
37997749910199,2cyclictest553-21snmpd20:32:543
37997749910198,2cyclictest553-21snmpd22:02:203
3799769991011,1cyclictest31-21ksoftirqd/222:25:182
3799769991011,100cyclictest31-21ksoftirqd/222:05:552
3799769991011,100cyclictest31-21ksoftirqd/221:07:182
3799769991011,100cyclictest31-21ksoftirqd/220:56:592
3799769991011,100cyclictest31-21ksoftirqd/220:53:152
3799769991011,100cyclictest31-21ksoftirqd/220:47:492
3799769991011,100cyclictest31-21ksoftirqd/220:39:302
3799769991011,100cyclictest31-21ksoftirqd/220:39:302
3799769991011,100cyclictest31-21ksoftirqd/220:32:352
3799769991011,100cyclictest31-21ksoftirqd/220:26:142
3799769991011,100cyclictest31-21ksoftirqd/220:22:002
3799769991011,100cyclictest31-21ksoftirqd/219:55:462
3799769991011,100cyclictest31-21ksoftirqd/219:36:052
3799769991011,100cyclictest31-21ksoftirqd/219:16:012
3799769991010,101cyclictest31-21ksoftirqd/220:17:042
3799769991010,100cyclictest31-21ksoftirqd/221:01:322
3799769991010,100cyclictest31-21ksoftirqd/219:45:442
3799769991010,100cyclictest0-21swapper/219:40:222
37997659910198,3cyclictest553-21snmpd23:23:111
3799765991010,99cyclictest0-21swapper/120:33:271
3799765991010,101cyclictest0-21swapper/121:15:531
3799765991010,101cyclictest0-21swapper/100:21:291
3799765991010,100cyclictest0-21swapper/122:38:501
3799765991010,100cyclictest0-21swapper/119:45:481
3799765991010,100cyclictest0-21swapper/100:04:441
3799765991010,0cyclictest0-21swapper/119:17:421
3799760991010,100cyclictest0-21swapper/023:12:260
3799760991010,100cyclictest0-21swapper/022:23:090
3799760991010,100cyclictest0-21swapper/021:40:300
3799760991010,100cyclictest0-21swapper/019:56:170
3799788991000,99cyclictest0-21swapper/722:03:547
3799788991000,99cyclictest0-21swapper/721:16:317
3799788991000,99cyclictest0-21swapper/721:08:257
3799788991000,100cyclictest0-21swapper/722:49:567
37997849910099,1cyclictest553-21snmpd23:07:176
37997849910099,1cyclictest553-21snmpd21:45:476
37997849910099,1cyclictest553-21snmpd21:39:406
37997849910099,1cyclictest553-21snmpd19:56:226
37997849910099,1cyclictest553-21snmpd19:54:056
37997849910099,1cyclictest553-21snmpd19:47:346
37997849910099,1cyclictest553-21snmpd19:34:126
37997849910099,1cyclictest553-21snmpd00:02:106
37997849910099,1cyclictest3815477-21kworker/6:219:40:146
37997849910098,2cyclictest553-21snmpd22:57:526
37997849910098,2cyclictest553-21snmpd21:40:236
37997849910098,2cyclictest553-21snmpd20:24:176
37997849910097,2cyclictest553-21snmpd23:32:186
3799784991000,100cyclictest0-21swapper/623:21:476
3799784991000,100cyclictest0-21swapper/623:15:306
37997809910099,1cyclictest553-21snmpd22:56:285
37997809910099,1cyclictest553-21snmpd21:15:525
37997809910099,1cyclictest553-21snmpd19:33:545
37997809910099,1cyclictest553-21snmpd19:20:305
3799780991000,99cyclictest0-21swapper/522:50:165
3799780991000,99cyclictest0-21swapper/522:28:425
3799780991000,99cyclictest0-21swapper/520:07:225
3799780991000,99cyclictest0-21swapper/519:25:275
3799780991000,100cyclictest0-21swapper/523:04:595
37997769910099,1cyclictest553-21snmpd23:36:494
37997769910099,1cyclictest553-21snmpd22:06:264
37997769910099,1cyclictest553-21snmpd20:44:084
37997769910099,1cyclictest553-21snmpd00:36:424
37997769910099,1cyclictest553-21snmpd00:02:374
3799776991000,99cyclictest0-21swapper/423:43:254
3799776991000,99cyclictest0-21swapper/421:24:564
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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