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2025-11-29 - 04:06

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 Sat Nov 29, 2025 00:43:55)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
238032331304,24sleep20-21swapper/219:09:182
235592319304,5sleep00-21swapper/019:06:110
237592316302,5sleep10-21swapper/119:08:441
236712315308,4sleep30-21swapper/319:07:383
24125993010,298cyclictest6715-21kworker/u16:1+efi_rts_wq22:05:123
24125993000,299cyclictest28983-21kworker/u16:3+efi_rts_wq23:50:133
24122993000,299cyclictest28983-21kworker/u16:3+efi_rts_wq19:10:140
24125992980,297cyclictest6715-21kworker/u16:1+efi_rts_wq19:50:143
24124992970,296cyclictest28983-21kworker/u16:3+efi_rts_wq20:45:162
24124992970,296cyclictest28983-21kworker/u16:3+efi_rts_wq19:20:132
24122992970,296cyclictest28983-21kworker/u16:3+efi_rts_wq00:11:180
24125992960,295cyclictest6715-21kworker/u16:1+efi_rts_wq20:39:323
24122992940,293cyclictest6715-21kworker/u16:1+efi_rts_wq22:00:130
24123992920,291cyclictest7213-21kworker/u16:1+efi_rts_wq00:05:121
24123992920,291cyclictest6715-21kworker/u16:1+efi_rts_wq22:30:121
24123992920,291cyclictest28983-21kworker/u16:3+efi_rts_wq22:09:461
24122992920,291cyclictest28983-21kworker/u16:3+efi_rts_wq22:10:140
24122992910,290cyclictest6715-21kworker/u16:1+efi_rts_wq20:35:150
24125992900,289cyclictest28983-21kworker/u16:3+efi_rts_wq19:40:103
24123992900,289cyclictest28983-21kworker/u16:3+efi_rts_wq19:19:171
24123992890,288cyclictest28983-21kworker/u16:3+efi_rts_wq20:55:141
24125992880,287cyclictest28983-21kworker/u16:3+efi_rts_wq21:45:133
24124992880,287cyclictest28983-21kworker/u16:3+efi_rts_wq21:35:162
24122992870,286cyclictest7213-21kworker/u16:1+efi_rts_wq23:45:040
24122992870,286cyclictest28983-21kworker/u16:3+efi_rts_wq21:49:430
24124992860,285cyclictest6715-21kworker/u16:1+efi_rts_wq21:55:112
24122992850,284cyclictest6715-21kworker/u16:1+efi_rts_wq19:49:220
24123992830,282cyclictest6715-21kworker/u16:1+efi_rts_wq20:15:141
24125992810,278cyclictest28983-21kworker/u16:3+efi_rts_wq00:20:143
24124992810,279cyclictest28983-21kworker/u16:3+efi_rts_wq22:59:552
24123992810,280cyclictest28983-21kworker/u16:3+efi_rts_wq23:40:141
24124992800,279cyclictest28983-21kworker/u16:3+efi_rts_wq20:30:152
24123992800,279cyclictest6715-21kworker/u16:1+efi_rts_wq20:14:271
24122992800,279cyclictest28983-21kworker/u16:3+efi_rts_wq22:19:480
24122992800,279cyclictest28983-21kworker/u16:3+efi_rts_wq00:15:130
24123992790,278cyclictest28983-21kworker/u16:3+efi_rts_wq22:35:151
24123992780,277cyclictest28983-21kworker/u16:3+efi_rts_wq22:04:461
24122992780,277cyclictest28983-21kworker/u16:3+efi_rts_wq21:10:120
24123992760,275cyclictest6715-21kworker/u16:1+efi_rts_wq19:45:131
24125992750,274cyclictest6715-21kworker/u16:1+efi_rts_wq23:00:143
24125992740,272cyclictest6715-21kworker/u16:1+efi_rts_wq20:20:153
24125992740,272cyclictest28983-21kworker/u16:3+efi_rts_wq21:20:133
24123992740,273cyclictest28983-21kworker/u16:3+efi_rts_wq00:35:131
24125992730,272cyclictest6715-21kworker/u16:1+efi_rts_wq20:00:113
24122992730,272cyclictest6715-21kworker/u16:1+efi_rts_wq23:05:130
24122992730,272cyclictest28983-21kworker/u16:3+efi_rts_wq19:15:120
24125992670,266cyclictest6715-21kworker/u16:1+efi_rts_wq23:05:133
24125992670,266cyclictest28983-21kworker/u16:3+efi_rts_wq21:40:133
24125992670,266cyclictest28983-21kworker/u16:3+efi_rts_wq20:25:133
24123992670,266cyclictest7213-21kworker/u16:1+efi_rts_wq23:55:121
24123992670,266cyclictest28983-21kworker/u16:3+efi_rts_wq00:21:201
24123992670,265cyclictest28983-21kworker/u16:3+efi_rts_wq23:35:141
24123992640,263cyclictest28983-21kworker/u16:3+efi_rts_wq22:20:131
24123992620,261cyclictest28983-21kworker/u16:3+efi_rts_wq22:25:131
24125992590,258cyclictest28983-21kworker/u16:3+efi_rts_wq22:15:133
24124992590,258cyclictest6715-21kworker/u16:1+efi_rts_wq21:25:132
24124992570,256cyclictest28983-21kworker/u16:3+efi_rts_wq23:19:592
24124992570,255cyclictest28983-21kworker/u16:3+efi_rts_wq22:50:132
24125992560,255cyclictest28983-21kworker/u16:3+efi_rts_wq21:10:123
24124992560,255cyclictest28983-21kworker/u16:3+efi_rts_wq21:54:442
24123992560,255cyclictest6715-21kworker/u16:1+efi_rts_wq20:34:311
24125992550,254cyclictest6715-21kworker/u16:1+efi_rts_wq20:15:143
24125992550,254cyclictest28983-21kworker/u16:3+efi_rts_wq20:55:133
24123992550,254cyclictest28983-21kworker/u16:3+efi_rts_wq21:05:131
24122992550,254cyclictest1473-21kworker/u16:0+efi_rts_wq23:30:120
24122992540,253cyclictest28983-21kworker/u16:3+efi_rts_wq20:50:130
24124992530,251cyclictest6715-21kworker/u16:1+efi_rts_wq22:00:132
24125992520,251cyclictest28983-21kworker/u16:3+efi_rts_wq00:30:133
24125992500,249cyclictest6715-21kworker/u16:1+efi_rts_wq22:45:123
24122992500,249cyclictest6715-21kworker/u16:1+efi_rts_wq20:05:120
24122992490,248cyclictest6715-21kworker/u16:1+efi_rts_wq19:30:130
24122992490,248cyclictest28983-21kworker/u16:3+efi_rts_wq00:01:160
24122992480,246cyclictest28983-21kworker/u16:3+efi_rts_wq23:15:120
24123992460,245cyclictest6715-21kworker/u16:1+efi_rts_wq21:30:121
24123992460,245cyclictest12837-21kworker/u16:0+efi_rts_wq22:40:131
24122992440,243cyclictest28983-21kworker/u16:3+efi_rts_wq21:34:410
24122992430,242cyclictest12837-21kworker/u16:0+efi_rts_wq22:44:520
24125992420,241cyclictest28983-21kworker/u16:3+efi_rts_wq00:15:133
24124992410,240cyclictest6715-21kworker/u16:1+efi_rts_wq23:10:142
24124992410,240cyclictest6715-21kworker/u16:1+efi_rts_wq23:10:142
24124992400,239cyclictest28983-21kworker/u16:3+efi_rts_wq22:15:132
24125992390,238cyclictest6715-21kworker/u16:1+efi_rts_wq20:05:123
24122992390,238cyclictest28983-21kworker/u16:3+efi_rts_wq20:59:360
24122992390,238cyclictest28983-21kworker/u16:3+efi_rts_wq00:35:130
24122992380,237cyclictest28983-21kworker/u16:3+efi_rts_wq19:40:100
24123992370,236cyclictest28983-21kworker/u16:3+efi_rts_wq00:25:141
24125992360,235cyclictest28983-21kworker/u16:3+efi_rts_wq23:15:123
24124992350,234cyclictest28983-21kworker/u16:3+efi_rts_wq20:40:122
24123992350,234cyclictest1473-21kworker/u16:0+efi_rts_wq23:20:141
24125992330,231cyclictest6715-21kworker/u16:1+efi_rts_wq23:14:583
24125992330,231cyclictest6715-21kworker/u16:1+efi_rts_wq23:14:583
24124992320,231cyclictest6715-21kworker/u16:1+efi_rts_wq19:50:142
24123992300,229cyclictest28983-21kworker/u16:3+efi_rts_wq21:35:151
24125992290,228cyclictest28983-21kworker/u16:3+efi_rts_wq19:20:143
24123992280,227cyclictest6715-21kworker/u16:1+efi_rts_wq20:44:331
24123992260,225cyclictest6715-21kworker/u16:1+efi_rts_wq21:19:381
24123992250,224cyclictest1473-21kworker/u16:0+efi_rts_wq23:25:131
24122992240,223cyclictest7213-21kworker/u16:1+efi_rts_wq23:51:140
24123992210,219cyclictest6715-21kworker/u16:1+efi_rts_wq23:10:161
24123992210,219cyclictest6715-21kworker/u16:1+efi_rts_wq23:10:151
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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