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2025-10-27 - 23:57

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #3, slot #6

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
Compare latency of primary with shadow system
Characteristics of the 100 highest latencies:
System rack3slot6s.osadl.org (updated Mon Oct 27, 2025 12:43:48)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
16722211898,15sleep20-21swapper/207:08:582
16588211695,16sleep30-21swapper/307:07:143
16701211495,14sleep10-21swapper/107:08:401
15011210580,19sleep00-21swapper/007:05:060
171172780,0sleep30-21swapper/309:59:433
197162710,0sleep00-21swapper/009:29:020
159952680,0sleep00-21swapper/009:57:590
156972480,1sleep215696-21ssh11:36:382
16838993717,19cyclictest0-21swapper/308:25:133
75482320,0sleep10-21swapper/112:01:221
30752320,1sleep10-21swapper/111:57:131
1683599240,18cyclictest0-21swapper/010:56:040
1683699230,21cyclictest0-21swapper/108:20:111
1683599230,18cyclictest0-21swapper/007:41:040
1683599220,17cyclictest0-21swapper/008:24:040
1683899210,2cyclictest0-21swapper/307:10:113
1683799210,19cyclictest0-21swapper/211:05:152
1683699211,2cyclictest0-21swapper/107:10:111
1683599210,16cyclictest0-21swapper/012:27:040
1683899201,2cyclictest0-21swapper/311:15:123
16837992017,2cyclictest0-21swapper/210:55:122
1683599200,18cyclictest0-21swapper/010:44:050
1683599200,16cyclictest0-21swapper/008:42:040
1683599200,15cyclictest0-21swapper/011:34:040
1683599190,2cyclictest0-21swapper/012:06:060
1683799182,7cyclictest0-21swapper/207:17:582
16835991815,2cyclictest5129-21runrttasks09:03:050
16835991815,2cyclictest4370-21kworker/u8:009:22:040
1683599180,17cyclictest0-21swapper/012:36:050
1683799172,6cyclictest0-21swapper/207:29:012
1683799171,14cyclictest0-21swapper/212:39:202
16835991714,2cyclictest4370-21kworker/u8:009:18:040
16835991714,2cyclictest22329-21kworker/u8:010:04:040
16835991714,2cyclictest21729-21kworker/u8:212:19:040
16835991714,2cyclictest14506-21kworker/u8:011:09:050
1683599170,7cyclictest0-21swapper/010:16:060
1683599170,16cyclictest0-21swapper/010:30:010
1683599170,16cyclictest0-21swapper/010:22:010
16837991611,3cyclictest0-21swapper/211:15:252
1683599160,2cyclictest0-21swapper/010:07:040
1683599160,2cyclictest0-21swapper/007:24:050
1683599160,15cyclictest0-21swapper/011:55:040
1683899151,12cyclictest3907-21df_inode11:25:183
1683899151,12cyclictest14989-21ssh09:24:143
16838991510,3cyclictest32090-21ssh10:47:263
1683899150,13cyclictest0-21swapper/309:35:063
1683799153,7cyclictest0-21swapper/208:20:002
1683799152,7cyclictest0-21swapper/210:05:012
1683799152,11cyclictest0-21swapper/212:18:282
1683799151,3cyclictest0-21swapper/212:09:272
1683799151,12cyclictest0-21swapper/209:59:272
16837991510,3cyclictest14611-21ssh10:30:142
16837991510,3cyclictest13376-21ssh09:21:442
1683799150,13cyclictest0-21swapper/209:31:532
1683699159,4cyclictest20893-21ssh11:09:561
16836991510,3cyclictest19718-21rm09:29:021
16836991510,3cyclictest0-21swapper/110:00:301
16836991510,3cyclictest0-21swapper/108:40:201
1683699150,4cyclictest0-21swapper/112:31:501
1683699150,3cyclictest0-21swapper/110:21:501
16835991512,2cyclictest29365-21kworker/u8:210:46:040
16835991512,2cyclictest19871-21kworker/u8:211:41:040
16835991512,2cyclictest1652-21kworker/u8:012:30:050
1683599150,8cyclictest0-21swapper/009:44:040
1683599150,2cyclictest0-21swapper/012:10:040
1683599150,14cyclictest0-21swapper/012:04:040
1683599150,14cyclictest0-21swapper/008:54:040
1683599150,12cyclictest0-21swapper/011:29:040
1683899149,3cyclictest0-21swapper/311:48:553
1683899141,11cyclictest0-21swapper/307:55:213
1683899140,2cyclictest0-21swapper/309:15:133
1683899140,12cyclictest30858-21popularity-cont07:41:053
1683899140,12cyclictest0-21swapper/312:30:203
1683899140,12cyclictest0-21swapper/312:28:293
1683899140,12cyclictest0-21swapper/310:11:093
1683799149,3cyclictest5129-21runrttasks10:24:302
1683799142,7cyclictest0-21swapper/211:15:002
1683799142,7cyclictest0-21swapper/210:15:002
16837991411,2cyclictest0-21swapper/212:14:122
16837991411,2cyclictest0-21swapper/210:18:402
1683799140,13cyclictest0-21swapper/211:41:092
1683799140,12cyclictest15697-21ssh11:04:272
1683699142,6cyclictest0-21swapper/111:15:001
1683699141,3cyclictest9652-21kworker/u8:209:24:561
16836991410,2cyclictest0-21swapper/108:30:281
1683699140,2cyclictest0-21swapper/109:35:071
1683699140,12cyclictest0-21swapper/111:25:301
1683699140,12cyclictest0-21swapper/108:05:171
16835991411,2cyclictest5523-21kworker/u8:109:47:040
16835991411,2cyclictest29345-21kworker/u8:108:14:050
16835991411,2cyclictest29345-21kworker/u8:107:55:040
16835991411,2cyclictest21388-21kworker/u8:211:18:040
1683599140,9cyclictest0-21swapper/010:29:040
1683599140,2cyclictest0-21swapper/009:11:280
1683599140,2cyclictest0-21swapper/008:18:040
1683599140,2cyclictest0-21swapper/008:00:040
1683599140,2cyclictest0-21swapper/007:39:050
1683599140,2cyclictest0-21swapper/007:12:020
1683599140,13cyclictest0-21swapper/010:39:080
1683599140,11cyclictest0-21swapper/009:08:040
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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