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2026-05-25 - 03:36

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 Mon May 25, 2026 00:44:18)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1818502120105,10sleep40-21swapper/419:06:554
1819202119105,9sleep00-21swapper/019:07:560
1819142118103,10sleep30-21swapper/319:07:503
181785211499,10sleep60-21swapper/619:06:016
182033211399,9sleep10-21swapper/119:09:331
181992211298,9sleep70-21swapper/719:08:597
181940211196,10sleep20-21swapper/219:08:132
181943210793,9sleep50-21swapper/519:08:165
1823149910299,3cyclictest553-21snmpd23:46:586
1823149910299,3cyclictest553-21snmpd20:17:356
1823149910299,2cyclictest553-21snmpd00:28:186
182314991020,101cyclictest0-21swapper/619:10:146
182316991010,100cyclictest0-21swapper/722:50:387
182316991010,100cyclictest0-21swapper/719:35:417
1823149910199,2cyclictest553-21snmpd20:37:596
18231499101100,1cyclictest553-21snmpd20:05:156
182314991010,101cyclictest0-21swapper/623:23:516
1823099910199,2cyclictest553-21snmpd23:08:405
1823099910199,2cyclictest553-21snmpd20:20:105
182309991010,100cyclictest511rcuc/500:34:305
182309991010,100cyclictest0-21swapper/522:25:115
18230599101100,1cyclictest553-21snmpd00:26:024
1823009910199,2cyclictest553-21snmpd23:28:193
1823009910199,2cyclictest553-21snmpd22:04:083
18230099101100,1cyclictest553-21snmpd21:35:253
1822979910197,4cyclictest389561-21cat23:20:142
18229799101100,1cyclictest0-21swapper/219:33:202
182297991010,99cyclictest0-21swapper/220:40:252
182297991010,99cyclictest0-21swapper/220:40:252
182297991010,100cyclictest0-21swapper/200:16:382
1822889910199,2cyclictest553-21snmpd22:26:570
1822889910199,2cyclictest553-21snmpd21:19:420
18228899101100,1cyclictest553-21snmpd23:54:250
18228899101100,1cyclictest553-21snmpd23:39:580
182288991010,100cyclictest243633-21diskmemload00:26:380
182288991010,100cyclictest0-21swapper/023:02:470
182316991000,99cyclictest0-21swapper/723:44:117
182316991000,99cyclictest0-21swapper/723:07:287
182316991000,99cyclictest0-21swapper/721:57:177
182316991000,1cyclictest0-21swapper/722:57:537
1823149910099,1cyclictest553-21snmpd22:38:306
1823149910099,1cyclictest553-21snmpd21:44:196
1823149910099,1cyclictest553-21snmpd21:05:386
1823149910098,2cyclictest553-21snmpd22:29:476
1823149910098,1cyclictest553-21snmpd22:41:006
1823149910097,2cyclictest553-21snmpd20:30:556
182314991000,99cyclictest0-21swapper/621:46:376
182314991000,100cyclictest0-21swapper/622:58:486
182314991000,100cyclictest0-21swapper/621:54:506
182314991000,100cyclictest0-21swapper/621:19:106
1823099910099,1cyclictest553-21snmpd22:32:425
1823099910099,1cyclictest553-21snmpd20:59:395
1823099910099,1cyclictest553-21snmpd20:30:525
1823099910099,1cyclictest553-21snmpd00:23:575
182309991000,99cyclictest243633-21diskmemload23:17:085
182309991000,100cyclictest0-21swapper/523:47:555
182309991000,100cyclictest0-21swapper/522:05:155
182309991000,100cyclictest0-21swapper/521:21:165
182309991000,100cyclictest0-21swapper/520:50:125
182309991000,100cyclictest0-21swapper/519:56:485
182309991000,100cyclictest0-21swapper/519:49:465
182309991000,100cyclictest0-21swapper/500:19:495
1823059910099,1cyclictest553-21snmpd22:18:374
1823059910099,1cyclictest553-21snmpd21:26:304
1823059910099,1cyclictest553-21snmpd19:15:154
1823059910098,2cyclictest553-21snmpd23:18:424
1823059910098,2cyclictest553-21snmpd00:36:114
182305991000,99cyclictest0-21swapper/423:04:584
182305991000,99cyclictest0-21swapper/420:20:464
182305991000,100cyclictest0-21swapper/423:31:584
1823009910099,1cyclictest553-21snmpd22:15:253
1823009910099,1cyclictest553-21snmpd22:08:383
1823009910099,1cyclictest553-21snmpd00:06:163
1823009910099,1cyclictest553-21snmpd00:04:313
1823009910098,2cyclictest553-21snmpd22:41:413
1823009910098,2cyclictest553-21snmpd20:50:303
1823009910096,3cyclictest553-21snmpd22:37:113
1822979910099,1cyclictest553-21snmpd00:21:242
1822979910099,1cyclictest273095-21cat21:35:162
1822979910098,2cyclictest553-21snmpd23:10:092
1822979910096,4cyclictest553-21snmpd21:51:582
182297991000,99cyclictest0-21swapper/223:58:112
182297991000,99cyclictest0-21swapper/223:53:232
182297991000,99cyclictest0-21swapper/222:18:492
182297991000,100cyclictest0-21swapper/220:50:142
1822929910099,1cyclictest553-21snmpd23:57:221
1822929910099,1cyclictest383995-21cat23:15:151
182292991000,99cyclictest0-21swapper/122:45:271
182292991000,99cyclictest0-21swapper/122:30:531
182292991000,99cyclictest0-21swapper/122:06:011
182292991000,99cyclictest0-21swapper/120:58:561
182292991000,99cyclictest0-21swapper/120:45:241
182292991000,99cyclictest0-21swapper/120:45:241
182292991000,100cyclictest0-21swapper/100:39:241
1822889910099,1cyclictest553-21snmpd23:42:370
1822889910099,1cyclictest553-21snmpd21:45:450
1822889910099,1cyclictest553-21snmpd20:32:440
1822889910099,1cyclictest553-21snmpd20:13:070
1822889910098,2cyclictest553-21snmpd21:33:250
1822889910098,2cyclictest553-21snmpd00:16:080
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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