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2025-10-13 - 01:54

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 Sun Oct 12, 2025 12:43:54)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
82702334311,5sleep30-21swapper/307:07:063
82942318303,5sleep20-21swapper/207:07:252
83302315308,4sleep10-21swapper/107:07:511
80222315307,5sleep00-21swapper/007:05:220
8876992960,295cyclictest13126-21kworker/u16:3+efi_rts_wq12:02:333
8874992950,294cyclictest9509-21kworker/u16:0+efi_rts_wq08:00:162
8872992940,293cyclictest12502-21kworker/u16:1+efi_rts_wq09:20:201
8876992930,292cyclictest12502-21kworker/u16:1+efi_rts_wq08:35:153
8870992930,292cyclictest12502-21kworker/u16:1+efi_rts_wq07:16:400
8870992920,291cyclictest9509-21kworker/u16:0+efi_rts_wq07:35:130
8870992920,291cyclictest8096-21kworker/u16:1+efi_rts_wq12:30:130
8870992910,290cyclictest8096-21kworker/u16:1+efi_rts_wq12:05:140
8870992900,289cyclictest9509-21kworker/u16:0+efi_rts_wq08:10:150
8870992900,287cyclictest9509-21kworker/u16:0+efi_rts_wq07:20:160
8874992890,288cyclictest12502-21kworker/u16:1+efi_rts_wq08:36:552
8870992850,284cyclictest22087-21kworker/u16:3+efi_rts_wq11:30:120
8876992840,283cyclictest12502-21kworker/u16:1+efi_rts_wq09:20:213
8872992830,281cyclictest24554-21kworker/u16:2+efi_rts_wq11:25:131
8872992820,281cyclictest9509-21kworker/u16:0+efi_rts_wq07:40:131
8872992820,281cyclictest8096-21kworker/u16:1+efi_rts_wq11:55:151
8876992810,280cyclictest9509-21kworker/u16:0+efi_rts_wq08:25:133
8872992800,279cyclictest26317-21kworker/u16:3+efi_rts_wq10:20:141
8870992800,278cyclictest16989-21kworker/u16:1+efi_rts_wq11:05:170
8876992790,278cyclictest26317-21kworker/u16:3+efi_rts_wq10:22:143
8872992790,278cyclictest9509-21kworker/u16:0+efi_rts_wq07:45:151
8872992790,278cyclictest12502-21kworker/u16:1+efi_rts_wq07:10:141
8872992780,277cyclictest26317-21kworker/u16:3+efi_rts_wq10:50:141
8872992780,277cyclictest26317-21kworker/u16:3+efi_rts_wq10:50:131
8872992780,277cyclictest12502-21kworker/u16:1+efi_rts_wq09:07:011
8876992750,274cyclictest12502-21kworker/u16:1+efi_rts_wq07:50:133
8870992740,273cyclictest9509-21kworker/u16:0+efi_rts_wq09:52:090
8870992740,273cyclictest8096-21kworker/u16:1+efi_rts_wq12:20:130
8870992720,271cyclictest12502-21kworker/u16:1+efi_rts_wq08:35:150
8872992710,270cyclictest10549-21kworker/u16:2+efi_rts_wq12:37:401
8870992710,270cyclictest26317-21kworker/u16:3+efi_rts_wq10:45:150
8870992710,270cyclictest13126-21kworker/u16:3+efi_rts_wq12:00:140
8872992700,269cyclictest8096-21kworker/u16:1+efi_rts_wq12:10:141
8874992690,268cyclictest10549-21kworker/u16:2+efi_rts_wq12:27:382
8874992680,267cyclictest24554-21kworker/u16:2+efi_rts_wq11:32:282
8870992670,266cyclictest9509-21kworker/u16:0+efi_rts_wq10:00:150
8870992670,266cyclictest9509-21kworker/u16:0+efi_rts_wq07:46:470
8872992660,265cyclictest26317-21kworker/u16:3+efi_rts_wq10:55:141
8876992640,263cyclictest22087-21kworker/u16:3+efi_rts_wq11:20:143
8874992630,262cyclictest9509-21kworker/u16:0+efi_rts_wq10:12:122
8874992630,259cyclictest12502-21kworker/u16:1+efi_rts_wq08:05:142
8870992620,261cyclictest5848-21kworker/u16:1+efi_rts_wq10:40:100
8874992610,259cyclictest5770-21kworker/u16:0+efi_rts_wq11:50:142
8872992600,259cyclictest9509-21kworker/u16:0+efi_rts_wq08:20:141
8872992600,259cyclictest10549-21kworker/u16:2+efi_rts_wq12:15:141
8870992600,259cyclictest10549-21kworker/u16:2+efi_rts_wq12:35:120
8876992590,258cyclictest12502-21kworker/u16:1+efi_rts_wq07:15:123
8870992580,257cyclictest9509-21kworker/u16:0+efi_rts_wq08:00:160
8872992540,253cyclictest14468-21kworker/u16:0+efi_rts_wq11:00:121
8872992540,253cyclictest12502-21kworker/u16:1+efi_rts_wq07:25:141
8870992530,252cyclictest9509-21kworker/u16:0+efi_rts_wq09:47:090
8874992510,250cyclictest26317-21kworker/u16:3+efi_rts_wq10:50:132
8874992510,250cyclictest26317-21kworker/u16:3+efi_rts_wq10:50:132
8874992480,247cyclictest14468-21kworker/u16:0+efi_rts_wq11:10:132
8876992460,245cyclictest9509-21kworker/u16:0+efi_rts_wq09:40:163
8870992450,244cyclictest5770-21kworker/u16:0+efi_rts_wq11:50:140
8870992450,244cyclictest12502-21kworker/u16:1+efi_rts_wq08:30:140
8876992440,243cyclictest5770-21kworker/u16:0+efi_rts_wq11:57:333
8872992440,243cyclictest10549-21kworker/u16:2+efi_rts_wq12:25:121
8870992420,241cyclictest12502-21kworker/u16:1+efi_rts_wq09:37:060
8872992410,240cyclictest22087-21kworker/u16:3+efi_rts_wq11:40:131
8872992390,238cyclictest9509-21kworker/u16:0+efi_rts_wq10:27:151
8872992380,237cyclictest12502-21kworker/u16:1+efi_rts_wq08:30:151
8876992330,232cyclictest16989-21kworker/u16:1+efi_rts_wq11:07:243
8870992310,230cyclictest9509-21kworker/u16:0+efi_rts_wq08:51:570
8876992300,229cyclictest9509-21kworker/u16:0+efi_rts_wq09:00:093
8874992290,228cyclictest12502-21kworker/u16:1+efi_rts_wq07:36:442
8876992230,222cyclictest26317-21kworker/u16:3+efi_rts_wq10:45:163
8870992230,222cyclictest5848-21kworker/u16:1+efi_rts_wq10:37:170
8876992210,220cyclictest12502-21kworker/u16:1+efi_rts_wq07:30:143
8874992190,218cyclictest12502-21kworker/u16:1+efi_rts_wq07:15:012
8876992170,216cyclictest24554-21kworker/u16:2+efi_rts_wq11:45:153
8872992150,214cyclictest14468-21kworker/u16:0+efi_rts_wq11:10:141
8872992130,212cyclictest8096-21kworker/u16:1+efi_rts_wq12:07:341
8870992130,212cyclictest8096-21kworker/u16:1+efi_rts_wq12:12:370
8870992110,210cyclictest9509-21kworker/u16:0+efi_rts_wq07:55:160
8870992110,210cyclictest12502-21kworker/u16:1+efi_rts_wq08:06:500
8870992090,208cyclictest12502-21kworker/u16:1+efi_rts_wq08:16:510
8872992080,207cyclictest9509-21kworker/u16:0+efi_rts_wq09:01:591
8876992070,206cyclictest26317-21kworker/u16:3+efi_rts_wq10:42:183
8874992040,203cyclictest9509-21kworker/u16:0+efi_rts_wq08:11:512
8874992010,200cyclictest12502-21kworker/u16:1+efi_rts_wq07:50:132
8876992000,199cyclictest9509-21kworker/u16:0+efi_rts_wq07:55:163
8872992000,199cyclictest9509-21kworker/u16:0+efi_rts_wq10:32:161
8874991980,197cyclictest22087-21kworker/u16:3+efi_rts_wq11:35:132
8874991980,197cyclictest12502-21kworker/u16:1+efi_rts_wq08:15:172
8870991960,195cyclictest9509-21kworker/u16:0+efi_rts_wq09:40:160
8876991950,194cyclictest12502-21kworker/u16:1+efi_rts_wq07:40:123
8872991950,194cyclictest5848-21kworker/u16:1+efi_rts_wq10:45:151
8876991940,193cyclictest9509-21kworker/u16:0+efi_rts_wq08:40:153
8876991930,192cyclictest9509-21kworker/u16:0+efi_rts_wq08:21:533
8874991930,192cyclictest26317-21kworker/u16:3+efi_rts_wq10:57:212
8872991910,190cyclictest12502-21kworker/u16:1+efi_rts_wq09:32:041
8876991880,187cyclictest22087-21kworker/u16:3+efi_rts_wq11:30:133
8876991870,186cyclictest22087-21kworker/u16:3+efi_rts_wq11:35:133
8874991860,185cyclictest24554-21kworker/u16:2+efi_rts_wq11:15:152
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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