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2025-10-19 - 03:00

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 Oct 18, 2025 12:44:17)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
17437542131102,9sleep50-21swapper/507:06:405
17438372130115,10sleep30-21swapper/307:07:503
17438022128113,10sleep60-21swapper/607:07:216
17437142126103,17sleep10-21swapper/107:06:041
1743764212391,10sleep40-21swapper/407:06:474
17437022122108,9sleep70-21swapper/707:05:547
17438142121106,10sleep00-21swapper/007:07:310
1743789212192,9sleep20-21swapper/207:07:092
1744219991020,100cyclictest0-21swapper/012:33:200
1744247991010,100cyclictest0-21swapper/710:21:217
17442459910199,1cyclictest546-21snmpd12:08:196
17442409910199,1cyclictest546-21snmpd07:53:135
17442369910199,2cyclictest546-21snmpd10:24:484
17442369910199,2cyclictest546-21snmpd10:19:334
17442369910199,2cyclictest546-21snmpd10:19:334
1744236991010,100cyclictest0-21swapper/412:00:334
17442319910199,2cyclictest546-21snmpd11:15:473
17442319910199,2cyclictest546-21snmpd10:17:153
17442319910199,2cyclictest546-21snmpd10:17:153
17442319910199,2cyclictest546-21snmpd09:54:353
17442319910198,3cyclictest546-21snmpd10:53:493
1744228991010,100cyclictest0-21swapper/209:45:112
17442239910199,2cyclictest1963200-21cat12:00:161
174422399101100,1cyclictest546-21snmpd07:35:121
17442199910199,2cyclictest546-21snmpd12:01:250
17442199910198,3cyclictest546-21snmpd09:23:160
174421999101100,1cyclictest546-21snmpd09:34:010
1744219991010,99cyclictest0-21swapper/010:09:140
1744219991010,101cyclictest0-21swapper/010:46:010
1744219991010,101cyclictest0-21swapper/007:50:370
1744219991010,100cyclictest0-21swapper/008:46:060
1744219991010,0cyclictest0-21swapper/007:44:160
1744247991000,99cyclictest0-21swapper/711:44:397
1744247991000,99cyclictest0-21swapper/710:36:407
1744247991000,100cyclictest0-21swapper/711:15:597
1744247991000,100cyclictest0-21swapper/710:53:437
1744247991000,100cyclictest0-21swapper/710:33:157
1744247991000,100cyclictest0-21swapper/709:40:137
1744247991000,100cyclictest0-21swapper/707:11:357
17442459910099,1cyclictest546-21snmpd11:53:216
17442459910099,1cyclictest546-21snmpd10:55:456
17442459910099,1cyclictest546-21snmpd10:44:406
17442459910099,1cyclictest546-21snmpd08:03:556
17442459910099,1cyclictest546-21snmpd07:58:166
17442459910099,1cyclictest546-21snmpd07:53:166
17442459910099,1cyclictest546-21snmpd07:14:236
17442459910099,1cyclictest1784412-21cat08:25:166
1744245991000,99cyclictest0-21swapper/609:46:566
1744245991000,99cyclictest0-21swapper/609:42:476
17442409910099,1cyclictest546-21snmpd12:38:445
17442409910099,1cyclictest546-21snmpd08:47:545
17442409910099,1cyclictest546-21snmpd08:12:465
17442409910098,2cyclictest546-21snmpd10:01:385
1744240991000,99cyclictest0-21swapper/510:59:075
1744240991000,99cyclictest0-21swapper/509:41:535
1744240991000,100cyclictest0-21swapper/508:25:115
17442369910099,1cyclictest561-21ntpd11:06:264
17442369910099,1cyclictest546-21snmpd11:33:384
17442369910099,1cyclictest546-21snmpd10:30:004
17442369910099,1cyclictest546-21snmpd09:44:204
17442369910099,1cyclictest546-21snmpd09:29:494
17442369910099,0cyclictest546-21snmpd09:00:334
17442369910098,1cyclictest546-21snmpd08:10:464
1744236991000,99cyclictest0-21swapper/411:40:544
1744236991000,99cyclictest0-21swapper/409:33:104
1744236991000,99cyclictest0-21swapper/409:05:184
1744236991000,100cyclictest0-21swapper/412:25:184
1744236991000,100cyclictest0-21swapper/409:23:164
1744236991000,0cyclictest0-21swapper/407:28:034
17442319910099,1cyclictest546-21snmpd11:47:453
17442319910099,1cyclictest546-21snmpd08:55:213
17442319910098,2cyclictest546-21snmpd10:13:243
17442319910098,2cyclictest546-21snmpd10:13:243
17442319910098,2cyclictest546-21snmpd09:58:143
17442319910098,2cyclictest546-21snmpd08:44:483
17442289910099,1cyclictest546-21snmpd11:45:302
17442289910099,1cyclictest546-21snmpd11:14:582
17442289910099,1cyclictest546-21snmpd09:42:142
17442289910099,1cyclictest546-21snmpd07:47:342
17442289910098,2cyclictest546-21snmpd11:33:532
1744228991000,99cyclictest0-21swapper/207:58:462
1744228991000,100cyclictest0-21swapper/212:34:262
1744228991000,100cyclictest0-21swapper/209:05:172
1744228991000,100cyclictest0-21swapper/207:32:002
17442239910099,1cyclictest546-21snmpd11:24:531
17442239910099,1cyclictest546-21snmpd10:37:401
17442239910099,1cyclictest546-21snmpd10:15:391
17442239910099,1cyclictest546-21snmpd10:15:391
17442239910099,1cyclictest546-21snmpd09:49:051
17442239910099,1cyclictest546-21snmpd09:25:491
17442239910099,1cyclictest546-21snmpd08:19:321
17442239910099,1cyclictest546-21snmpd07:46:281
17442239910099,1cyclictest546-21snmpd07:33:091
17442239910099,1cyclictest0-21swapper/111:00:041
1744223991000,99cyclictest0-21swapper/111:12:261
1744223991000,99cyclictest0-21swapper/109:56:201
1744223991000,1cyclictest0-21swapper/107:59:581
1744223991000,100cyclictest0-21swapper/112:35:171
17442199910099,1cyclictest546-21snmpd10:18:480
17442199910099,1cyclictest546-21snmpd10:18:480
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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