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2026-08-08 - 07:20

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 Sat Aug 08, 2026 00:44:18)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
13010499127127,0cyclictest0-21swapper/200:00:372
1295142127114,8sleep40-21swapper/419:05:204
1297752120104,10sleep20-21swapper/219:08:552
1295282119104,10sleep70-21swapper/719:05:227
129764211788,23sleep00-21swapper/019:08:440
1296352117102,10sleep10-21swapper/119:06:531
1298412116102,9sleep30-21swapper/319:09:523
1297702115100,10sleep60-21swapper/619:08:506
1295532115100,10sleep50-21swapper/519:05:465
13010499107104,1cyclictest31-21ksoftirqd/221:52:042
13010499107103,4cyclictest31-21ksoftirqd/222:15:162
13010499107102,5cyclictest31-21ksoftirqd/221:46:422
13010499104100,2cyclictest31-21ksoftirqd/222:22:262
13010499103101,2cyclictest31-21ksoftirqd/222:52:102
1300959910399,4cyclictest553-21snmpd21:17:140
130115991020,99cyclictest0-21swapper/522:30:055
130115991020,99cyclictest0-21swapper/522:30:055
130104991021,100cyclictest31-21ksoftirqd/223:15:142
13010499102101,1cyclictest31-21ksoftirqd/221:25:102
13010499102101,1cyclictest31-21ksoftirqd/221:24:222
13010499102100,2cyclictest31-21ksoftirqd/219:45:152
130104991020,0cyclictest141rcu_preempt23:53:282
130099991020,100cyclictest0-21swapper/120:17:101
1300959910299,3cyclictest553-21snmpd22:53:320
130119991010,100cyclictest0-21swapper/600:05:136
1301159910199,2cyclictest553-21snmpd22:35:415
1301159910199,2cyclictest553-21snmpd20:33:165
1301159910199,2cyclictest553-21snmpd00:35:245
1301159910199,1cyclictest553-21snmpd22:15:075
1301159910198,3cyclictest400386-21cat00:15:145
13011599101100,1cyclictest553-21snmpd20:15:395
130115991010,101cyclictest0-21swapper/522:02:075
130115991010,100cyclictest0-21swapper/520:52:375
1301089910199,2cyclictest553-21snmpd00:25:183
1301049910199,2cyclictest553-21snmpd21:41:512
1301049910199,2cyclictest553-21snmpd21:39:372
1301049910199,1cyclictest202989-21kworker/2:222:48:052
1301049910199,1cyclictest202989-21kworker/2:222:48:052
130104991011,100cyclictest0-21swapper/221:05:192
13010499101100,1cyclictest553-21snmpd00:27:362
13010499101100,1cyclictest337709-21kworker/2:000:13:322
130104991010,100cyclictest337709-21kworker/2:023:45:162
130104991010,100cyclictest337709-21kworker/2:000:05:192
130104991010,100cyclictest202989-21kworker/2:222:00:132
1300999910199,2cyclictest553-21snmpd21:36:371
1300999910199,2cyclictest553-21snmpd00:03:231
13009999101100,1cyclictest553-21snmpd22:28:501
130099991010,100cyclictest0-21swapper/123:17:571
130099991010,0cyclictest0-21swapper/100:34:501
1300959910199,2cyclictest553-21snmpd21:38:150
130095991010,101cyclictest0-21swapper/021:49:510
130095991010,100cyclictest0-21swapper/023:07:150
130095991010,100cyclictest0-21swapper/022:21:140
130095991010,100cyclictest0-21swapper/021:54:510
1301199910099,1cyclictest553-21snmpd23:43:566
1301199910099,1cyclictest553-21snmpd23:36:186
1301199910099,1cyclictest175004-21cat20:35:156
130119991000,99cyclictest0-21swapper/623:48:266
130119991000,99cyclictest0-21swapper/623:05:136
130119991000,99cyclictest0-21swapper/621:40:366
130119991000,99cyclictest0-21swapper/621:39:096
130119991000,99cyclictest0-21swapper/620:55:346
130119991000,99cyclictest0-21swapper/620:42:226
130119991000,99cyclictest0-21swapper/620:34:016
130119991000,100cyclictest0-21swapper/621:46:406
130119991000,0cyclictest0-21swapper/621:07:026
1301159910097,3cyclictest553-21snmpd19:33:395
130115991000,99cyclictest0-21swapper/520:56:585
130115991000,99cyclictest0-21swapper/519:44:145
130115991000,100cyclictest0-21swapper/500:23:505
1301139910099,1cyclictest553-21snmpd23:32:544
1301139910099,1cyclictest553-21snmpd22:16:134
1301139910099,1cyclictest553-21snmpd21:26:114
1301139910099,1cyclictest553-21snmpd19:49:054
1301139910099,1cyclictest553-21snmpd19:42:054
1301139910099,1cyclictest553-21snmpd19:15:374
1301139910099,1cyclictest553-21snmpd00:17:564
1301139910099,1cyclictest277239-21cat22:25:144
1301139910098,2cyclictest553-21snmpd22:39:144
130113991000,99cyclictest0-21swapper/420:19:044
130113991000,99cyclictest0-21swapper/400:25:134
130113991000,100cyclictest0-21swapper/423:19:194
1301089910099,1cyclictest553-21snmpd23:06:033
1301089910099,1cyclictest553-21snmpd22:24:103
1301089910099,1cyclictest553-21snmpd21:30:283
1301089910098,2cyclictest553-21snmpd00:14:353
1301089910098,2cyclictest553-21snmpd00:09:473
1301049910099,1cyclictest553-21snmpd20:53:252
1301049910099,1cyclictest553-21snmpd20:43:142
1301049910099,1cyclictest553-21snmpd20:18:192
1301049910099,1cyclictest31-21ksoftirqd/223:38:052
1301049910096,0cyclictest331423-21ssh23:14:092
130104991001,99cyclictest0-21swapper/223:05:112
130104991001,99cyclictest0-21swapper/200:15:162
13010499100100,0cyclictest191761-21diskmemload22:30:372
13010499100100,0cyclictest191761-21diskmemload22:30:362
130104991000,99cyclictest191761-21diskmemload23:03:522
130104991000,99cyclictest191761-21diskmemload21:15:122
130104991000,99cyclictest0-21swapper/223:25:162
130104991000,99cyclictest0-21swapper/221:12:322
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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