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2026-09-15 - 00:13

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 Mon Sep 14, 2026 12:43:54)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
210712320305,5sleep30-21swapper/307:06:353
212262317307,8sleep00-21swapper/007:08:310
210492315308,4sleep10-21swapper/107:06:151
210352314307,5sleep20-21swapper/207:06:052
21610993040,302cyclictest23087-21kworker/u16:1+efi_rts_wq07:15:013
21610993020,301cyclictest23087-21kworker/u16:1+efi_rts_wq08:45:113
21610993010,298cyclictest22837-21kworker/u16:0+efi_rts_wq11:00:123
21610993000,298cyclictest24055-21kworker/u16:0+efi_rts_wq10:35:153
21610992990,298cyclictest30702-21kworker/u16:2+efi_rts_wq11:45:123
21610992990,298cyclictest24222-21kworker/u16:3+efi_rts_wq09:20:143
21607992990,298cyclictest24222-21kworker/u16:3+efi_rts_wq09:25:130
21609992980,297cyclictest16701-21kworker/u16:0+efi_rts_wq12:20:122
21607992980,297cyclictest16701-21kworker/u16:0+efi_rts_wq11:55:120
21610992960,295cyclictest24222-21kworker/u16:3+efi_rts_wq07:20:133
21609992950,294cyclictest24222-21kworker/u16:3+efi_rts_wq07:30:122
21610992940,293cyclictest24222-21kworker/u16:3+efi_rts_wq08:10:133
21608992940,293cyclictest16701-21kworker/u16:0+efi_rts_wq12:35:121
21609992930,292cyclictest16701-21kworker/u16:0+efi_rts_wq12:30:122
21610992920,291cyclictest23087-21kworker/u16:1+efi_rts_wq09:15:113
21608992920,291cyclictest30702-21kworker/u16:2+efi_rts_wq11:50:121
21610992910,290cyclictest14392-21kworker/u16:3+efi_rts_wq11:58:163
21608992910,288cyclictest24222-21kworker/u16:3+efi_rts_wq08:30:131
21607992910,290cyclictest16701-21kworker/u16:0+efi_rts_wq12:15:120
21610992900,289cyclictest23087-21kworker/u16:1+efi_rts_wq08:25:123
21609992900,289cyclictest24222-21kworker/u16:3+efi_rts_wq08:40:122
21608992900,289cyclictest30702-21kworker/u16:2+efi_rts_wq11:45:111
21609992890,288cyclictest20318-21kworker/u16:1+efi_rts_wq11:05:132
21610992880,287cyclictest24222-21kworker/u16:3+efi_rts_wq07:12:243
21610992850,284cyclictest14392-21kworker/u16:3+efi_rts_wq12:05:123
21607992850,284cyclictest30702-21kworker/u16:2+efi_rts_wq11:15:130
21607992840,283cyclictest23087-21kworker/u16:1+efi_rts_wq08:20:130
21610992830,282cyclictest16701-21kworker/u16:0+efi_rts_wq12:15:133
21609992830,282cyclictest16701-21kworker/u16:0+efi_rts_wq12:00:112
21608992830,282cyclictest24055-21kworker/u16:0+efi_rts_wq10:00:101
21610992820,281cyclictest30702-21kworker/u16:2+efi_rts_wq11:50:113
21610992810,280cyclictest23087-21kworker/u16:1+efi_rts_wq07:25:133
21608992810,280cyclictest23087-21kworker/u16:1+efi_rts_wq07:55:121
21607992810,280cyclictest24222-21kworker/u16:3+efi_rts_wq07:50:130
21610992800,279cyclictest24222-21kworker/u16:3+efi_rts_wq09:10:133
21610992790,278cyclictest24222-21kworker/u16:3+efi_rts_wq08:50:123
21610992790,278cyclictest24222-21kworker/u16:3+efi_rts_wq08:15:133
21610992750,273cyclictest24222-21kworker/u16:3+efi_rts_wq10:45:123
21608992750,273cyclictest22837-21kworker/u16:0+efi_rts_wq11:00:121
21607992740,273cyclictest24222-21kworker/u16:3+efi_rts_wq09:35:130
21610992730,272cyclictest24055-21kworker/u16:0+efi_rts_wq10:07:573
21610992710,270cyclictest24222-21kworker/u16:3+efi_rts_wq09:45:113
21608992700,269cyclictest24222-21kworker/u16:3+efi_rts_wq09:00:141
21607992700,269cyclictest23087-21kworker/u16:1+efi_rts_wq07:45:120
21609992690,268cyclictest23087-21kworker/u16:1+efi_rts_wq07:17:262
21608992680,267cyclictest17805-21kworker/u16:2+efi_rts_wq10:55:131
21610992660,264cyclictest24222-21kworker/u16:3+efi_rts_wq08:40:123
21609992660,264cyclictest24222-21kworker/u16:3+efi_rts_wq10:40:112
21607992650,263cyclictest20318-21kworker/u16:1+efi_rts_wq11:03:070
21610992620,261cyclictest24222-21kworker/u16:3+efi_rts_wq10:10:123
21610992620,261cyclictest23087-21kworker/u16:1+efi_rts_wq07:35:153
21608992600,259cyclictest24222-21kworker/u16:3+efi_rts_wq09:27:501
21608992600,257cyclictest23087-21kworker/u16:1+efi_rts_wq08:05:131
21608992590,258cyclictest24222-21kworker/u16:3+efi_rts_wq09:35:131
21610992580,257cyclictest23087-21kworker/u16:1+efi_rts_wq08:55:103
21610992570,255cyclictest20318-21kworker/u16:1+efi_rts_wq11:10:113
21609992560,255cyclictest24055-21kworker/u16:0+efi_rts_wq10:25:132
21610992550,254cyclictest4926-21kworker/u16:1+efi_rts_wq11:30:123
21608992540,253cyclictest24055-21kworker/u16:0+efi_rts_wq10:05:141
21610992510,250cyclictest24222-21kworker/u16:3+efi_rts_wq09:00:143
21608992500,249cyclictest24222-21kworker/u16:3+efi_rts_wq09:30:121
21610992490,248cyclictest4926-21kworker/u16:1+efi_rts_wq11:35:153
21610992490,248cyclictest23087-21kworker/u16:1+efi_rts_wq09:42:533
21610992490,248cyclictest23087-21kworker/u16:1+efi_rts_wq07:45:113
21609992490,248cyclictest24055-21kworker/u16:0+efi_rts_wq10:05:142
21609992490,248cyclictest23087-21kworker/u16:1+efi_rts_wq08:05:132
21607992490,248cyclictest24055-21kworker/u16:0+efi_rts_wq10:35:150
21607992490,246cyclictest24222-21kworker/u16:3+efi_rts_wq10:40:110
21608992480,247cyclictest4926-21kworker/u16:1+efi_rts_wq11:30:121
21609992460,245cyclictest24222-21kworker/u16:3+efi_rts_wq10:50:102
21610992450,244cyclictest24222-21kworker/u16:3+efi_rts_wq07:40:133
21607992450,244cyclictest24222-21kworker/u16:3+efi_rts_wq08:35:130
21607992450,244cyclictest24222-21kworker/u16:3+efi_rts_wq08:00:130
21608992440,243cyclictest24222-21kworker/u16:3+efi_rts_wq08:35:131
21608992430,242cyclictest16701-21kworker/u16:0+efi_rts_wq12:03:171
21607992430,242cyclictest24222-21kworker/u16:3+efi_rts_wq10:50:100
21607992430,242cyclictest24222-21kworker/u16:3+efi_rts_wq09:47:540
21609992420,241cyclictest23087-21kworker/u16:1+efi_rts_wq09:05:132
21607992420,241cyclictest24222-21kworker/u16:3+efi_rts_wq09:55:140
21607992380,237cyclictest23087-21kworker/u16:1+efi_rts_wq09:50:110
21608992370,236cyclictest23087-21kworker/u16:1+efi_rts_wq07:15:131
21607992370,234cyclictest24055-21kworker/u16:0+efi_rts_wq10:15:120
21608992360,235cyclictest24222-21kworker/u16:3+efi_rts_wq10:40:111
21609992340,232cyclictest22837-21kworker/u16:0+efi_rts_wq10:58:072
21608992340,233cyclictest16701-21kworker/u16:0+efi_rts_wq12:33:241
21610992330,232cyclictest24222-21kworker/u16:3+efi_rts_wq10:20:113
21607992330,232cyclictest23087-21kworker/u16:1+efi_rts_wq07:15:000
21610992320,231cyclictest16701-21kworker/u16:0+efi_rts_wq12:23:213
21608992320,231cyclictest30702-21kworker/u16:2+efi_rts_wq11:20:121
21608992320,231cyclictest24222-21kworker/u16:3+efi_rts_wq07:30:121
21607992320,231cyclictest28195-21kworker/u16:3+efi_rts_wq11:13:100
21608992310,230cyclictest14392-21kworker/u16:3+efi_rts_wq12:28:221
21610992290,228cyclictest24222-21kworker/u16:3+efi_rts_wq08:02:353
21609992270,226cyclictest23087-21kworker/u16:1+efi_rts_wq08:25:122
21609992270,226cyclictest16701-21kworker/u16:0+efi_rts_wq12:10:102
21608992240,223cyclictest24222-21kworker/u16:3+efi_rts_wq08:22:381
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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