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2026-06-28 - 04:54

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 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 highest latencies:
System rackcslot3s.osadl.org (updated Sun Jun 28, 2026 00:43:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
94952337311,24sleep00-21swapper/019:08:120
92952319305,4sleep20-21swapper/219:05:372
96332317311,4sleep10-21swapper/119:09:571
93782317309,5sleep30-21swapper/319:06:423
9900993020,301cyclictest17201-21kworker/u16:2+efi_rts_wq20:45:130
9901992990,298cyclictest21026-21kworker/u16:3+efi_rts_wq23:55:121
9901992990,298cyclictest21026-21kworker/u16:3+efi_rts_wq23:35:141
9901992990,297cyclictest30980-21kworker/u16:0+efi_rts_wq19:55:131
9902992980,297cyclictest30980-21kworker/u16:0+efi_rts_wq19:44:462
9900992980,297cyclictest17201-21kworker/u16:2+efi_rts_wq22:45:190
9902992970,296cyclictest21026-21kworker/u16:3+efi_rts_wq00:05:142
9900992970,295cyclictest23316-21kworker/u16:1+efi_rts_wq00:10:150
9903992950,294cyclictest17201-21kworker/u16:2+efi_rts_wq20:24:543
9902992950,294cyclictest30980-21kworker/u16:0+efi_rts_wq19:20:122
9903992920,291cyclictest30980-21kworker/u16:0+efi_rts_wq21:00:123
9903992920,291cyclictest17201-21kworker/u16:2+efi_rts_wq21:55:133
9902992920,291cyclictest30980-21kworker/u16:0+efi_rts_wq19:25:132
9902992920,291cyclictest17201-21kworker/u16:2+efi_rts_wq20:25:122
9900992920,291cyclictest23316-21kworker/u16:1+efi_rts_wq00:15:140
9902992910,288cyclictest30980-21kworker/u16:0+efi_rts_wq20:05:132
9903992900,289cyclictest17201-21kworker/u16:2+efi_rts_wq20:25:123
9901992900,289cyclictest21026-21kworker/u16:3+efi_rts_wq00:00:141
9903992890,288cyclictest30980-21kworker/u16:0+efi_rts_wq22:15:113
9903992880,287cyclictest30980-21kworker/u16:0+efi_rts_wq22:05:143
9902992880,287cyclictest17201-21kworker/u16:2+efi_rts_wq21:15:132
9901992880,287cyclictest30980-21kworker/u16:0+efi_rts_wq20:10:111
9900992880,287cyclictest3463-21kworker/u16:3+efi_rts_wq23:00:130
9902992860,285cyclictest17201-21kworker/u16:2+efi_rts_wq23:15:112
9901992850,283cyclictest17201-21kworker/u16:2+efi_rts_wq23:20:241
9900992850,284cyclictest30980-21kworker/u16:0+efi_rts_wq21:55:100
9903992840,283cyclictest21026-21kworker/u16:3+efi_rts_wq00:25:143
9902992840,283cyclictest17201-21kworker/u16:2+efi_rts_wq23:20:122
9900992840,283cyclictest17201-21kworker/u16:2+efi_rts_wq23:20:120
9903992830,282cyclictest17201-21kworker/u16:2+efi_rts_wq21:20:143
9903992820,281cyclictest30980-21kworker/u16:0+efi_rts_wq20:15:123
9901992820,279cyclictest17201-21kworker/u16:2+efi_rts_wq20:45:131
9900992820,281cyclictest30980-21kworker/u16:0+efi_rts_wq22:00:120
9903992800,279cyclictest30980-21kworker/u16:0+efi_rts_wq21:35:133
9900992790,278cyclictest17201-21kworker/u16:2+efi_rts_wq20:40:130
9901992780,277cyclictest30980-21kworker/u16:0+efi_rts_wq22:00:121
9900992780,277cyclictest17201-21kworker/u16:2+efi_rts_wq20:50:110
9901992760,275cyclictest30980-21kworker/u16:0+efi_rts_wq19:50:121
9900992750,274cyclictest17201-21kworker/u16:2+efi_rts_wq19:35:130
9900992730,272cyclictest30980-21kworker/u16:0+efi_rts_wq20:30:130
9903992720,270cyclictest23316-21kworker/u16:1+efi_rts_wq23:30:133
9900992720,271cyclictest17201-21kworker/u16:2+efi_rts_wq21:20:140
9902992710,270cyclictest3463-21kworker/u16:3+efi_rts_wq23:05:122
9900992700,269cyclictest21026-21kworker/u16:3+efi_rts_wq00:20:140
9900992700,269cyclictest17201-21kworker/u16:2+efi_rts_wq22:55:140
9903992690,268cyclictest17201-21kworker/u16:2+efi_rts_wq22:35:133
9902992690,268cyclictest23316-21kworker/u16:1+efi_rts_wq23:30:122
9902992680,267cyclictest30980-21kworker/u16:0+efi_rts_wq21:50:092
9900992680,267cyclictest23316-21kworker/u16:1+efi_rts_wq00:30:140
9903992670,265cyclictest17201-21kworker/u16:2+efi_rts_wq22:55:143
9902992670,266cyclictest17201-21kworker/u16:2+efi_rts_wq21:05:142
9902992670,266cyclictest17201-21kworker/u16:2+efi_rts_wq21:05:132
9901992670,266cyclictest17201-21kworker/u16:2+efi_rts_wq20:34:551
9900992650,264cyclictest30980-21kworker/u16:0+efi_rts_wq21:40:080
9902992640,263cyclictest17201-21kworker/u16:2+efi_rts_wq20:54:582
9900992640,263cyclictest23316-21kworker/u16:1+efi_rts_wq00:05:330
9903992630,262cyclictest30980-21kworker/u16:0+efi_rts_wq19:30:113
9900992620,261cyclictest17201-21kworker/u16:2+efi_rts_wq20:55:130
9901992610,260cyclictest17201-21kworker/u16:2+efi_rts_wq20:19:531
9902992590,258cyclictest30980-21kworker/u16:0+efi_rts_wq20:44:562
9902992570,254cyclictest30980-21kworker/u16:0+efi_rts_wq20:00:102
9900992570,255cyclictest3463-21kworker/u16:3+efi_rts_wq22:50:140
9901992550,254cyclictest23316-21kworker/u16:1+efi_rts_wq23:25:131
9903992540,253cyclictest23316-21kworker/u16:1+efi_rts_wq00:15:143
9903992540,253cyclictest21026-21kworker/u16:3+efi_rts_wq23:45:143
9903992530,252cyclictest17201-21kworker/u16:2+efi_rts_wq22:30:113
9901992530,252cyclictest21026-21kworker/u16:3+efi_rts_wq00:20:131
9900992530,252cyclictest30980-21kworker/u16:0+efi_rts_wq19:25:130
9901992510,250cyclictest23316-21kworker/u16:1+efi_rts_wq23:30:251
9900992510,250cyclictest30980-21kworker/u16:0+efi_rts_wq20:39:560
9903992470,246cyclictest21026-21kworker/u16:3+efi_rts_wq23:40:283
9901992470,246cyclictest17201-21kworker/u16:2+efi_rts_wq21:10:021
9900992460,245cyclictest30980-21kworker/u16:0+efi_rts_wq20:05:130
9900992460,245cyclictest21026-21kworker/u16:3+efi_rts_wq00:00:320
9902992440,243cyclictest17201-21kworker/u16:2+efi_rts_wq22:40:132
9902992440,243cyclictest17201-21kworker/u16:2+efi_rts_wq19:15:142
9902992420,240cyclictest23316-21kworker/u16:1+efi_rts_wq23:40:122
9900992420,241cyclictest17201-21kworker/u16:2+efi_rts_wq21:35:070
9902992360,234cyclictest3463-21kworker/u16:3+efi_rts_wq23:00:132
9903992350,234cyclictest17201-21kworker/u16:2+efi_rts_wq19:24:433
9901992350,234cyclictest17201-21kworker/u16:2+efi_rts_wq21:30:111
9903992330,232cyclictest17201-21kworker/u16:2+efi_rts_wq20:35:123
9901992270,226cyclictest17201-21kworker/u16:2+efi_rts_wq22:15:141
9900992260,224cyclictest30980-21kworker/u16:0+efi_rts_wq19:10:150
9901992250,224cyclictest3463-21kworker/u16:3+efi_rts_wq23:00:211
9903992240,223cyclictest17201-21kworker/u16:2+efi_rts_wq22:00:113
9901992240,223cyclictest17201-21kworker/u16:2+efi_rts_wq19:15:011
9903992230,222cyclictest21026-21kworker/u16:3+efi_rts_wq23:25:243
9901992230,222cyclictest30980-21kworker/u16:0+efi_rts_wq19:10:151
9903992200,219cyclictest30980-21kworker/u16:0+efi_rts_wq22:25:133
9901992190,218cyclictest17201-21kworker/u16:2+efi_rts_wq21:55:131
9901992190,218cyclictest17201-21kworker/u16:2+efi_rts_wq21:50:131
9900992190,218cyclictest30980-21kworker/u16:0+efi_rts_wq21:45:120
9903992160,215cyclictest30980-21kworker/u16:0+efi_rts_wq21:40:133
9901992160,215cyclictest30980-21kworker/u16:0+efi_rts_wq21:25:131
9901992150,214cyclictest23316-21kworker/u16:1+efi_rts_wq00:30:141
9901992140,213cyclictest17201-21kworker/u16:2+efi_rts_wq22:35:131
9901992090,208cyclictest23316-21kworker/u16:1+efi_rts_wq00:10:151
9900992090,207cyclictest30980-21kworker/u16:0+efi_rts_wq22:25:130
9901992080,207cyclictest30980-21kworker/u16:0+efi_rts_wq23:10:121
9900992080,207cyclictest21026-21kworker/u16:3+efi_rts_wq00:25:360
9900992080,207cyclictest17201-21kworker/u16:2+efi_rts_wq23:15:120
9903992070,206cyclictest17201-21kworker/u16:2+efi_rts_wq19:45:123
9903992060,204cyclictest17201-21kworker/u16:2+efi_rts_wq22:40:133
9902992050,203cyclictest17201-21kworker/u16:2+efi_rts_wq22:45:132
9903992040,203cyclictest17201-21kworker/u16:2+efi_rts_wq21:25:053
9901992040,203cyclictest30980-21kworker/u16:0+efi_rts_wq20:00:101
9900992030,202cyclictest23316-21kworker/u16:1+efi_rts_wq00:35:120
9902992020,201cyclictest21026-21kworker/u16:3+efi_rts_wq23:50:132
9901991990,198cyclictest3463-21kworker/u16:3+efi_rts_wq22:50:141
9903991980,197cyclictest17201-21kworker/u16:2+efi_rts_wq19:50:123
9902991980,197cyclictest30980-21kworker/u16:0+efi_rts_wq22:20:132
9902991970,196cyclictest3463-21kworker/u16:3+efi_rts_wq22:50:142
9903991950,194cyclictest21026-21kworker/u16:3+efi_rts_wq00:00:133
9902991940,193cyclictest30980-21kworker/u16:0+efi_rts_wq22:15:102
9903991930,191cyclictest23316-21kworker/u16:1+efi_rts_wq00:35:123
9902991930,192cyclictest30980-21kworker/u16:0+efi_rts_wq21:10:122
9901991890,188cyclictest30980-21kworker/u16:0+efi_rts_wq21:45:121
9900991890,188cyclictest30980-21kworker/u16:0+efi_rts_wq22:30:170
9900991890,188cyclictest30980-21kworker/u16:0+efi_rts_wq22:05:140
9903991840,183cyclictest17201-21kworker/u16:2+efi_rts_wq20:55:133
9900991840,183cyclictest17201-21kworker/u16:2+efi_rts_wq19:19:420
9903991830,182cyclictest30980-21kworker/u16:0+efi_rts_wq22:20:133
9903991830,182cyclictest23316-21kworker/u16:1+efi_rts_wq00:20:353
9900991830,182cyclictest23316-21kworker/u16:1+efi_rts_wq23:25:120
9900991830,181cyclictest30980-21kworker/u16:0+efi_rts_wq22:15:110
9901991810,180cyclictest17201-21kworker/u16:2+efi_rts_wq21:00:001
9901991800,179cyclictest17201-21kworker/u16:2+efi_rts_wq22:40:131
9901991750,174cyclictest17201-21kworker/u16:2+efi_rts_wq21:15:041
9900991720,171cyclictest23316-21kworker/u16:1+efi_rts_wq23:55:310
9903991700,169cyclictest30980-21kworker/u16:0+efi_rts_wq22:10:123
9900991690,168cyclictest30980-21kworker/u16:0+efi_rts_wq21:00:120
9900991680,167cyclictest17201-21kworker/u16:2+efi_rts_wq21:50:130
9900991610,160cyclictest30980-21kworker/u16:0+efi_rts_wq21:30:060
9900991590,158cyclictest30980-21kworker/u16:0+efi_rts_wq23:10:130
9903991570,156cyclictest17201-21kworker/u16:2+efi_rts_wq23:15:123
9901991570,157cyclictest30980-21kworker/u16:0+efi_rts_wq20:09:511
9901991540,153cyclictest17201-21kworker/u16:2+efi_rts_wq21:20:041
9903991520,151cyclictest21026-21kworker/u16:3+efi_rts_wq23:35:263
9902991500,149cyclictest17201-21kworker/u16:2+efi_rts_wq19:45:122
9900991500,149cyclictest30980-21kworker/u16:0+efi_rts_wq19:49:480
9903991470,146cyclictest17201-21kworker/u16:2+efi_rts_wq21:15:143
9900991460,145cyclictest23316-21kworker/u16:1+efi_rts_wq23:50:300
9902991440,143cyclictest21026-21kworker/u16:3+efi_rts_wq23:45:142
9901991390,138cyclictest21026-21kworker/u16:3+efi_rts_wq23:45:131
9901991380,137cyclictest17201-21kworker/u16:2+efi_rts_wq21:05:011
9901991380,137cyclictest17201-21kworker/u16:2+efi_rts_wq21:05:011
9901991360,136cyclictest17201-21kworker/u16:2+efi_rts_wq22:25:161
9900991350,134cyclictest17201-21kworker/u16:2+efi_rts_wq20:14:520
9903991330,132cyclictest17201-21kworker/u16:2+efi_rts_wq23:05:223
9902991250,124cyclictest23316-21kworker/u16:1+efi_rts_wq00:35:372
9902991240,123cyclictest17201-21kworker/u16:2+efi_rts_wq22:25:132
9901991180,118cyclictest30980-21kworker/u16:0+efi_rts_wq22:10:131
9903991120,111cyclictest21026-21kworker/u16:3+efi_rts_wq23:50:133
9903991110,110cyclictest30980-21kworker/u16:0+efi_rts_wq19:14:413
9903991100,109cyclictest21026-21kworker/u16:3+efi_rts_wq23:55:133
9903993330,2cyclictest809-21snmpd19:35:073
9903993230,2cyclictest809-21snmpd19:19:073
9903993229,2cyclictest809-21snmpd21:52:083
9902993230,2cyclictest809-21snmpd23:25:442
9902993229,2cyclictest809-21snmpd20:12:112
9901993230,2cyclictest809-21snmpd00:17:571
9903993130,1cyclictest809-21snmpd20:12:533
9903993129,2cyclictest809-21snmpd19:40:403
9903993128,2cyclictest809-21snmpd19:25:403
9903993128,2cyclictest809-21snmpd00:33:433
9902993130,1cyclictest809-21snmpd21:36:012
9902993129,2cyclictest809-21snmpd21:25:222
9901993130,1cyclictest809-21snmpd22:58:581
9901993129,2cyclictest809-21snmpd19:49:251
9900993130,1cyclictest809-21snmpd22:14:500
9900993130,1cyclictest809-21snmpd19:54:140
9900993130,1cyclictest809-21snmpd19:20:280
9900993129,2cyclictest809-21snmpd23:38:350
9900993128,2cyclictest809-21snmpd22:23:180
9903993029,1cyclictest809-21snmpd00:06:543
9903993029,1cyclictest6413-21kworker/3:2+events23:10:043
9903993029,1cyclictest1203-21kworker/3:0+events22:47:443
9902993029,1cyclictest809-21snmpd23:57:452
9902993029,1cyclictest809-21snmpd22:06:552
9902993029,1cyclictest809-21snmpd21:49:102
9902993029,1cyclictest809-21snmpd21:22:252
9902993029,1cyclictest809-21snmpd21:03:262
9902993029,1cyclictest809-21snmpd19:50:492
9902993029,1cyclictest809-21snmpd19:10:592
9902993028,2cyclictest809-21snmpd19:37:312
9902993027,2cyclictest809-21snmpd21:42:192
9902993027,2cyclictest809-21snmpd20:30:242
9901993029,1cyclictest809-21snmpd23:40:351
9901993029,1cyclictest809-21snmpd22:30:361
9901993029,1cyclictest809-21snmpd22:06:501
9901993029,1cyclictest809-21snmpd20:35:391
9901993029,1cyclictest809-21snmpd19:35:401
9901993029,1cyclictest809-21snmpd00:09:141
9901993028,2cyclictest809-21snmpd20:41:001
9900993029,1cyclictest809-21snmpd21:12:340
9900993028,2cyclictest809-21snmpd19:31:010
9903992929,0cyclictest6413-21kworker/3:2+events23:02:003
9903992929,0cyclictest18568-21kworker/3:0+events23:21:263
9903992928,1cyclictest809-21snmpd22:50:183
9903992927,2cyclictest809-21snmpd21:46:073
9903992927,2cyclictest809-21snmpd20:42:333
9902992928,1cyclictest809-21snmpd23:12:132
9902992928,1cyclictest809-21snmpd19:58:262
9902992928,1cyclictest809-21snmpd00:33:522
9902992927,2cyclictest809-21snmpd00:12:092
9902992927,2cyclictest8034-21cat00:00:162
9902992926,2cyclictest809-21snmpd00:29:342
9901992929,0cyclictest21026-21kworker/u16:3+atlantic23:54:541
9901992929,0cyclictest17201-21kworker/u16:2+atlantic23:05:501
9901992928,1cyclictest809-21snmpd22:22:001
9901992928,1cyclictest809-21snmpd20:27:331
9901992928,1cyclictest809-21snmpd19:33:161
9901992927,2cyclictest809-21snmpd19:43:131
9900992929,0cyclictest30980-21kworker/u16:0+atlantic21:17:460
9900992929,0cyclictest21026-21kworker/u16:3+atlantic23:40:400
9900992928,1cyclictest809-21snmpd21:29:130
9900992928,1cyclictest809-21snmpd20:25:050
9900992928,1cyclictest809-21snmpd20:19:440
9900992928,1cyclictest809-21snmpd20:04:290
9900992927,2cyclictest809-21snmpd23:47:540
9900992927,2cyclictest809-21snmpd19:55:230
9900992927,1cyclictest809-21snmpd23:32:440
9903992828,0cyclictest26053-21kworker/3:1+events21:34:063
9903992827,1cyclictest809-21snmpd21:06:303
9903992827,1cyclictest809-21snmpd21:06:303
9903992827,1cyclictest809-21snmpd20:31:483
9903992826,2cyclictest809-21snmpd20:03:563
9902992828,0cyclictest30980-21kworker/u16:0+atlantic22:30:162
9902992827,1cyclictest809-21snmpd20:49:392
9902992827,1cyclictest809-21snmpd20:20:382
9902992827,1cyclictest809-21snmpd00:18:012
9902992827,1cyclictest19417-21cat19:30:112
9902992826,2cyclictest809-21snmpd23:39:292
9901992828,0cyclictest30980-21kworker/u16:0+atlantic21:01:241
9901992827,1cyclictest809-21snmpd19:20:551
9903992727,0cyclictest2100-21kworker/3:1+events00:10:143
9903992726,1cyclictest809-21snmpd21:14:043
9903992726,1cyclictest809-21snmpd19:55:593
9902992726,1cyclictest809-21snmpd22:39:502
9902992726,1cyclictest809-21snmpd22:13:202
9902992726,1cyclictest809-21snmpd20:36:002
9902992725,2cyclictest809-21snmpd21:56:342
9901992727,0cyclictest74850irq/132-enp1s023:16:081
9901992727,0cyclictest74850irq/132-enp1s022:45:441
9900992726,1cyclictest809-21snmpd19:44:580
9900992725,2cyclictest809-21snmpd20:21:110
9902992624,2cyclictest809-21snmpd21:32:342
9901992625,1cyclictest809-21snmpd20:52:481
9901992624,2cyclictest809-21snmpd00:39:031
9900992625,1cyclictest809-21snmpd22:42:510
9900992624,2cyclictest809-21snmpd22:38:480
9903992525,0cyclictest20615-21kworker/3:0+events20:50:123
9902992523,2cyclictest809-21snmpd22:56:572
9901992524,1cyclictest809-21snmpd21:40:101
9902992423,1cyclictest809-21snmpd20:19:082
9901992424,0cyclictest17201-21kworker/u16:2+atlantic19:28:141
9900992423,1cyclictest809-21snmpd21:09:060
9900992423,1cyclictest809-21snmpd21:09:060
9902992322,1cyclictest809-21snmpd20:58:452
9902992322,1cyclictest17388-21cat22:00:142
9902992321,2cyclictest809-21snmpd00:23:342
9903992222,0cyclictest20615-21kworker/3:0+events20:05:183
9900992019,1cyclictest809-21snmpd23:06:220
9903991919,0cyclictest20615-21kworker/3:0+events20:45:343
9901991716,1cyclictest809-21snmpd20:23:561
9901991616,0cyclictest21026-21kworker/u16:3+atlantic00:29:011
99019988,0cyclictest6740-21cat21:35:151
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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