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2025-11-11 - 20:26

OSADL QA Farm on Real-time of Mainline Linux

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

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 rackcslot3s.osadl.org (updated Tue Nov 11, 2025 12:43:54)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
44462319304,5sleep10-21swapper/107:09:441
44662318304,5sleep00-21swapper/007:09:590
41652316309,5sleep20-21swapper/207:06:082
42762314307,4sleep30-21swapper/307:07:353
4730993000,299cyclictest370-21kworker/u16:1+efi_rts_wq09:40:141
4729993000,298cyclictest15405-21kworker/u16:0+efi_rts_wq11:00:130
4730992970,296cyclictest15405-21kworker/u16:0+efi_rts_wq10:00:151
4732992960,295cyclictest15405-21kworker/u16:0+efi_rts_wq07:47:223
4729992960,295cyclictest15405-21kworker/u16:0+efi_rts_wq09:20:130
4731992930,292cyclictest370-21kworker/u16:1+efi_rts_wq10:47:552
4731992930,292cyclictest370-21kworker/u16:1+efi_rts_wq07:15:142
4730992930,292cyclictest370-21kworker/u16:1+efi_rts_wq08:55:141
4729992930,292cyclictest370-21kworker/u16:1+efi_rts_wq09:05:140
4731992910,290cyclictest3598-21kworker/u16:2+efi_rts_wq11:35:142
4730992910,290cyclictest15405-21kworker/u16:0+efi_rts_wq09:10:131
4729992910,290cyclictest370-21kworker/u16:1+efi_rts_wq08:45:180
4731992900,289cyclictest370-21kworker/u16:1+efi_rts_wq09:25:162
4731992900,289cyclictest15405-21kworker/u16:0+efi_rts_wq08:20:142
4731992890,287cyclictest370-21kworker/u16:1+efi_rts_wq10:55:152
4730992890,288cyclictest15405-21kworker/u16:0+efi_rts_wq08:30:131
4730992880,287cyclictest15405-21kworker/u16:0+efi_rts_wq11:20:151
4730992870,285cyclictest15405-21kworker/u16:0+efi_rts_wq11:18:011
4730992860,285cyclictest370-21kworker/u16:1+efi_rts_wq08:00:141
4730992860,285cyclictest15405-21kworker/u16:0+efi_rts_wq07:45:141
4731992850,284cyclictest370-21kworker/u16:1+efi_rts_wq08:35:132
4730992850,283cyclictest11129-21kworker/u16:3+efi_rts_wq11:10:141
4731992840,283cyclictest11129-21kworker/u16:3+efi_rts_wq11:10:142
4732992810,280cyclictest15405-21kworker/u16:0+efi_rts_wq08:50:123
4731992810,279cyclictest370-21kworker/u16:1+efi_rts_wq10:50:142
4730992810,280cyclictest370-21kworker/u16:1+efi_rts_wq08:45:181
4730992810,279cyclictest15405-21kworker/u16:0+efi_rts_wq09:35:151
4731992800,279cyclictest370-21kworker/u16:1+efi_rts_wq09:07:382
4729992800,279cyclictest370-21kworker/u16:1+efi_rts_wq09:55:140
4729992800,279cyclictest370-21kworker/u16:1+efi_rts_wq08:25:160
4731992770,276cyclictest4531-21kworker/u16:2+efi_rts_wq12:23:142
4731992750,274cyclictest370-21kworker/u16:1+efi_rts_wq07:10:132
4730992750,274cyclictest15405-21kworker/u16:0+efi_rts_wq09:30:161
4729992750,274cyclictest4531-21kworker/u16:2+efi_rts_wq12:35:140
4730992740,273cyclictest370-21kworker/u16:1+efi_rts_wq07:15:001
4732992730,272cyclictest370-21kworker/u16:1+efi_rts_wq10:45:143
4730992730,272cyclictest15405-21kworker/u16:0+efi_rts_wq09:00:131
4732992720,271cyclictest15405-21kworker/u16:0+efi_rts_wq07:20:133
4729992720,271cyclictest4531-21kworker/u16:2+efi_rts_wq12:30:140
4729992720,271cyclictest32152-21kworker/u16:1+efi_rts_wq12:13:120
4729992720,271cyclictest15405-21kworker/u16:0+efi_rts_wq10:10:150
4730992700,269cyclictest370-21kworker/u16:1+efi_rts_wq09:57:481
4732992680,267cyclictest15405-21kworker/u16:0+efi_rts_wq09:30:163
4730992680,267cyclictest18576-21kworker/u16:3+efi_rts_wq11:58:081
4731992670,266cyclictest3598-21kworker/u16:2+efi_rts_wq11:45:142
4731992670,266cyclictest15405-21kworker/u16:0+efi_rts_wq09:47:462
4731992660,265cyclictest370-21kworker/u16:1+efi_rts_wq08:25:152
4730992630,262cyclictest370-21kworker/u16:1+efi_rts_wq07:35:131
4731992620,261cyclictest3598-21kworker/u16:2+efi_rts_wq11:40:142
4732992610,260cyclictest15405-21kworker/u16:0+efi_rts_wq09:52:463
4732992580,257cyclictest15405-21kworker/u16:0+efi_rts_wq10:00:153
4731992580,257cyclictest370-21kworker/u16:1+efi_rts_wq07:30:152
4732992570,256cyclictest15405-21kworker/u16:0+efi_rts_wq08:42:343
4729992570,256cyclictest370-21kworker/u16:1+efi_rts_wq07:40:160
4730992560,255cyclictest18576-21kworker/u16:3+efi_rts_wq11:30:131
4729992540,253cyclictest18576-21kworker/u16:3+efi_rts_wq11:38:050
4732992530,252cyclictest4531-21kworker/u16:2+efi_rts_wq12:18:133
4732992530,252cyclictest3598-21kworker/u16:2+efi_rts_wq11:07:593
4731992530,252cyclictest15405-21kworker/u16:0+efi_rts_wq11:15:142
4730992530,252cyclictest370-21kworker/u16:1+efi_rts_wq10:35:131
4732992520,251cyclictest15405-21kworker/u16:0+efi_rts_wq09:45:133
4731992520,250cyclictest15405-21kworker/u16:0+efi_rts_wq08:40:122
4732992510,250cyclictest18576-21kworker/u16:3+efi_rts_wq11:28:043
4732992510,250cyclictest18576-21kworker/u16:3+efi_rts_wq11:28:033
4731992510,250cyclictest4531-21kworker/u16:2+efi_rts_wq12:38:162
4729992510,250cyclictest15405-21kworker/u16:0+efi_rts_wq08:30:130
4731992500,249cyclictest370-21kworker/u16:1+efi_rts_wq10:40:142
4731992500,249cyclictest370-21kworker/u16:1+efi_rts_wq10:35:142
4731992500,249cyclictest370-21kworker/u16:1+efi_rts_wq08:17:282
4730992490,248cyclictest370-21kworker/u16:1+efi_rts_wq08:05:131
4732992460,245cyclictest4531-21kworker/u16:2+efi_rts_wq12:20:133
4730992450,242cyclictest3598-21kworker/u16:2+efi_rts_wq11:05:151
4730992410,240cyclictest15405-21kworker/u16:0+efi_rts_wq10:20:141
4729992410,239cyclictest370-21kworker/u16:1+efi_rts_wq10:35:130
4732992390,238cyclictest370-21kworker/u16:1+efi_rts_wq07:15:153
4732992390,238cyclictest15405-21kworker/u16:0+efi_rts_wq07:27:203
4732992370,236cyclictest370-21kworker/u16:1+efi_rts_wq09:40:143
4731992350,234cyclictest370-21kworker/u16:1+efi_rts_wq08:02:262
4729992350,234cyclictest15405-21kworker/u16:0+efi_rts_wq09:15:170
4730992340,233cyclictest15405-21kworker/u16:0+efi_rts_wq09:22:401
4730992310,230cyclictest370-21kworker/u16:1+efi_rts_wq07:40:161
4730992310,230cyclictest18576-21kworker/u16:3+efi_rts_wq11:50:131
4731992300,229cyclictest15405-21kworker/u16:0+efi_rts_wq10:15:162
4729992270,226cyclictest370-21kworker/u16:1+efi_rts_wq10:32:540
4732992260,225cyclictest3598-21kworker/u16:2+efi_rts_wq11:15:143
4732992240,222cyclictest15405-21kworker/u16:0+efi_rts_wq07:55:153
4730992210,220cyclictest370-21kworker/u16:1+efi_rts_wq08:10:151
4729992210,220cyclictest15405-21kworker/u16:0+efi_rts_wq10:02:480
4730992200,219cyclictest15405-21kworker/u16:0+efi_rts_wq08:22:291
4732992190,218cyclictest370-21kworker/u16:1+efi_rts_wq07:35:133
4732992190,218cyclictest18576-21kworker/u16:3+efi_rts_wq11:30:133
4732992180,217cyclictest370-21kworker/u16:1+efi_rts_wq10:05:133
4732992180,217cyclictest32152-21kworker/u16:1+efi_rts_wq12:28:143
4731992170,216cyclictest370-21kworker/u16:1+efi_rts_wq10:05:132
4729992170,216cyclictest15405-21kworker/u16:0+efi_rts_wq10:25:140
4729992170,216cyclictest15405-21kworker/u16:0+efi_rts_wq07:25:130
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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