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2026-09-18 - 14:39

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 792 highest latencies:
System rackcslot3s.osadl.org (updated Fri Sep 18, 2026 00:43:55)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
112622317309,5sleep20-21swapper/219:09:202
112112316310,4sleep10-21swapper/119:08:391
94812314307,5sleep30-21swapper/319:05:093
109922314307,5sleep00-21swapper/019:05:500
11581993040,303cyclictest14281-21kworker/u16:2+efi_rts_wq22:25:111
11582993030,302cyclictest8467-21kworker/u16:3+efi_rts_wq20:45:142
11580993030,302cyclictest25381-21kworker/u16:3+efi_rts_wq23:55:120
11583993020,300cyclictest8468-21kworker/u16:1+efi_rts_wq00:30:113
11582993020,301cyclictest25381-21kworker/u16:3+efi_rts_wq23:55:332
11582993020,300cyclictest14281-21kworker/u16:2+efi_rts_wq22:50:132
11580993020,301cyclictest8467-21kworker/u16:3+efi_rts_wq21:30:120
11582993000,299cyclictest20083-21kworker/u16:0+efi_rts_wq19:10:112
11582993000,297cyclictest25381-21kworker/u16:3+efi_rts_wq23:30:132
11581993000,299cyclictest20083-21kworker/u16:0+efi_rts_wq20:20:111
11580992980,297cyclictest14281-21kworker/u16:2+efi_rts_wq23:25:260
11583992970,296cyclictest14281-21kworker/u16:2+efi_rts_wq23:10:123
11582992970,296cyclictest8468-21kworker/u16:1+efi_rts_wq23:15:122
11582992960,295cyclictest8467-21kworker/u16:3+efi_rts_wq19:15:132
11581992960,295cyclictest20083-21kworker/u16:0+efi_rts_wq21:15:121
11583992950,294cyclictest14281-21kworker/u16:2+efi_rts_wq22:05:113
11580992950,294cyclictest8468-21kworker/u16:1+efi_rts_wq23:10:230
11582992940,293cyclictest20083-21kworker/u16:0+efi_rts_wq19:34:442
11583992930,290cyclictest23355-21kworker/u16:1+efi_rts_wq22:10:123
11580992930,292cyclictest25381-21kworker/u16:3+efi_rts_wq00:15:130
11583992920,291cyclictest8467-21kworker/u16:3+efi_rts_wq21:20:123
11582992920,291cyclictest8467-21kworker/u16:3+efi_rts_wq20:00:122
11581992920,290cyclictest14281-21kworker/u16:2+efi_rts_wq22:30:161
11583992910,290cyclictest8467-21kworker/u16:3+efi_rts_wq20:00:123
11582992910,290cyclictest8468-21kworker/u16:1+efi_rts_wq23:25:132
11582992910,289cyclictest23355-21kworker/u16:1+efi_rts_wq21:45:122
11581992910,290cyclictest8468-21kworker/u16:1+efi_rts_wq23:50:141
11580992910,290cyclictest8467-21kworker/u16:3+efi_rts_wq20:19:520
11582992900,289cyclictest20083-21kworker/u16:0+efi_rts_wq20:05:142
11582992890,288cyclictest8468-21kworker/u16:1+efi_rts_wq00:20:132
11580992890,287cyclictest8467-21kworker/u16:3+efi_rts_wq19:50:110
11582992880,287cyclictest20083-21kworker/u16:0+efi_rts_wq21:25:112
11580992880,287cyclictest8467-21kworker/u16:3+efi_rts_wq19:15:000
11580992870,286cyclictest8468-21kworker/u16:1+efi_rts_wq23:30:130
11582992860,285cyclictest23355-21kworker/u16:1+efi_rts_wq21:40:142
11581992860,285cyclictest8468-21kworker/u16:1+efi_rts_wq00:00:131
11581992860,285cyclictest8467-21kworker/u16:3+efi_rts_wq19:54:471
11580992840,283cyclictest8468-21kworker/u16:1+efi_rts_wq00:20:150
11582992800,279cyclictest20083-21kworker/u16:0+efi_rts_wq20:24:532
11581992800,278cyclictest14281-21kworker/u16:2+efi_rts_wq22:45:141
11580992800,279cyclictest8468-21kworker/u16:1+efi_rts_wq23:20:120
11582992790,278cyclictest25381-21kworker/u16:3+efi_rts_wq00:35:132
11581992790,278cyclictest8468-21kworker/u16:1+efi_rts_wq23:20:251
11583992780,277cyclictest8467-21kworker/u16:3+efi_rts_wq19:40:123
11582992780,277cyclictest23355-21kworker/u16:1+efi_rts_wq22:35:162
11581992780,277cyclictest20083-21kworker/u16:0+efi_rts_wq19:55:131
11581992780,276cyclictest14281-21kworker/u16:2+efi_rts_wq23:00:221
11581992770,276cyclictest20083-21kworker/u16:0+efi_rts_wq21:05:121
11580992750,274cyclictest14281-21kworker/u16:2+efi_rts_wq22:15:140
11580992750,274cyclictest14281-21kworker/u16:2+efi_rts_wq22:15:130
11583992740,273cyclictest8468-21kworker/u16:1+efi_rts_wq23:20:123
11581992740,273cyclictest8468-21kworker/u16:1+efi_rts_wq23:25:131
11583992730,272cyclictest25381-21kworker/u16:3+efi_rts_wq23:55:143
11583992730,272cyclictest25381-21kworker/u16:3+efi_rts_wq23:35:123
11582992720,271cyclictest8468-21kworker/u16:1+efi_rts_wq23:35:292
11580992720,271cyclictest8467-21kworker/u16:3+efi_rts_wq19:30:110
11583992710,270cyclictest14281-21kworker/u16:2+efi_rts_wq22:55:143
11583992690,268cyclictest25381-21kworker/u16:3+efi_rts_wq23:50:313
11583992690,268cyclictest25381-21kworker/u16:3+efi_rts_wq00:35:133
11582992690,268cyclictest8468-21kworker/u16:1+efi_rts_wq00:05:142
11580992690,268cyclictest20083-21kworker/u16:0+efi_rts_wq20:40:140
11581992680,267cyclictest8467-21kworker/u16:3+efi_rts_wq21:30:121
11580992670,266cyclictest8467-21kworker/u16:3+efi_rts_wq20:55:110
11582992660,265cyclictest25381-21kworker/u16:3+efi_rts_wq00:10:162
11580992650,264cyclictest8467-21kworker/u16:3+efi_rts_wq20:34:560
11580992630,262cyclictest25381-21kworker/u16:3+efi_rts_wq23:45:120
11582992610,260cyclictest23355-21kworker/u16:1+efi_rts_wq21:50:082
11582992600,259cyclictest8468-21kworker/u16:1+efi_rts_wq23:50:142
11581992590,258cyclictest8467-21kworker/u16:3+efi_rts_wq20:15:121
11583992580,257cyclictest20083-21kworker/u16:0+efi_rts_wq20:40:133
11580992580,256cyclictest25381-21kworker/u16:3+efi_rts_wq23:40:140
11581992560,255cyclictest8468-21kworker/u16:1+efi_rts_wq00:20:381
11583992550,254cyclictest23355-21kworker/u16:1+efi_rts_wq21:45:133
11580992550,254cyclictest14281-21kworker/u16:2+efi_rts_wq22:25:110
11582992530,252cyclictest8467-21kworker/u16:3+efi_rts_wq20:15:142
11581992520,251cyclictest8467-21kworker/u16:3+efi_rts_wq21:00:131
11583992510,250cyclictest2792-21kworker/u16:4+efi_rts_wq22:40:143
11582992500,249cyclictest23355-21kworker/u16:1+efi_rts_wq22:05:122
11581992500,249cyclictest8467-21kworker/u16:3+efi_rts_wq20:25:121
11583992480,247cyclictest25381-21kworker/u16:3+efi_rts_wq00:25:143
11582992480,247cyclictest8467-21kworker/u16:3+efi_rts_wq21:00:002
11583992470,246cyclictest8468-21kworker/u16:1+efi_rts_wq00:00:333
11583992440,243cyclictest8467-21kworker/u16:3+efi_rts_wq19:25:143
11582992440,243cyclictest23355-21kworker/u16:1+efi_rts_wq22:20:122
11581992420,241cyclictest25381-21kworker/u16:3+efi_rts_wq00:25:131
11580992420,241cyclictest20083-21kworker/u16:0+efi_rts_wq20:14:520
11582992410,239cyclictest8468-21kworker/u16:1+efi_rts_wq23:05:122
11580992400,238cyclictest8467-21kworker/u16:3+efi_rts_wq20:35:130
11583992380,237cyclictest20083-21kworker/u16:0+efi_rts_wq19:35:133
11582992380,237cyclictest14281-21kworker/u16:2+efi_rts_wq23:10:122
11581992380,237cyclictest20083-21kworker/u16:0+efi_rts_wq20:30:121
11580992380,237cyclictest8468-21kworker/u16:1+efi_rts_wq00:00:140
11580992360,233cyclictest20083-21kworker/u16:0+efi_rts_wq19:55:120
11583992350,234cyclictest23355-21kworker/u16:1+efi_rts_wq21:55:133
11582992320,231cyclictest20083-21kworker/u16:0+efi_rts_wq20:50:122
11581992320,231cyclictest20083-21kworker/u16:0+efi_rts_wq19:10:111
11581992320,230cyclictest23355-21kworker/u16:1+efi_rts_wq22:35:151
11583992310,230cyclictest8468-21kworker/u16:1+efi_rts_wq23:05:233
11581992290,228cyclictest14281-21kworker/u16:2+efi_rts_wq21:55:091
11580992280,227cyclictest14281-21kworker/u16:2+efi_rts_wq22:45:140
11583992270,226cyclictest8467-21kworker/u16:3+efi_rts_wq21:10:133
11580992270,226cyclictest20083-21kworker/u16:0+efi_rts_wq20:20:120
11582992250,224cyclictest8467-21kworker/u16:3+efi_rts_wq20:29:552
11582992250,224cyclictest8467-21kworker/u16:3+efi_rts_wq20:10:122
11581992250,224cyclictest8467-21kworker/u16:3+efi_rts_wq20:04:491
11581992250,224cyclictest8467-21kworker/u16:3+efi_rts_wq19:44:451
11581992250,224cyclictest14281-21kworker/u16:2+efi_rts_wq22:00:141
11580992250,224cyclictest8467-21kworker/u16:3+efi_rts_wq19:40:120
11583992230,222cyclictest20083-21kworker/u16:0+efi_rts_wq19:24:433
11581992220,221cyclictest20083-21kworker/u16:0+efi_rts_wq21:35:111
11580992210,220cyclictest25381-21kworker/u16:3+efi_rts_wq00:35:130
11582992170,216cyclictest25381-21kworker/u16:3+efi_rts_wq23:40:122
11583992160,214cyclictest14281-21kworker/u16:2+efi_rts_wq21:50:113
11581992150,214cyclictest25381-21kworker/u16:3+efi_rts_wq23:40:291
11580992150,214cyclictest20083-21kworker/u16:0+efi_rts_wq19:20:120
11583992120,211cyclictest20083-21kworker/u16:0+efi_rts_wq19:45:133
11580992120,211cyclictest8467-21kworker/u16:3+efi_rts_wq20:45:130
11583992100,209cyclictest23355-21kworker/u16:1+efi_rts_wq22:20:143
11580992040,203cyclictest8467-21kworker/u16:3+efi_rts_wq21:00:140
11583992020,201cyclictest23355-21kworker/u16:1+efi_rts_wq21:35:063
11582992020,201cyclictest23355-21kworker/u16:1+efi_rts_wq22:00:112
11581992000,199cyclictest20083-21kworker/u16:0+efi_rts_wq19:20:121
11580992000,199cyclictest8467-21kworker/u16:3+efi_rts_wq19:35:120
11581991990,197cyclictest8468-21kworker/u16:1+efi_rts_wq23:15:121
11580991980,197cyclictest8468-21kworker/u16:1+efi_rts_wq00:05:340
11582991930,192cyclictest14281-21kworker/u16:2+efi_rts_wq22:30:152
11581991900,189cyclictest20083-21kworker/u16:0+efi_rts_wq20:54:591
11583991890,188cyclictest25381-21kworker/u16:3+efi_rts_wq00:10:343
11581991870,186cyclictest20083-21kworker/u16:0+efi_rts_wq19:35:131
11580991850,184cyclictest20083-21kworker/u16:0+efi_rts_wq20:05:130
11580991820,181cyclictest23355-21kworker/u16:1+efi_rts_wq22:10:130
11580991800,179cyclictest14281-21kworker/u16:2+efi_rts_wq22:50:130
11582991770,176cyclictest20083-21kworker/u16:0+efi_rts_wq19:49:472
11582991770,176cyclictest14281-21kworker/u16:2+efi_rts_wq22:45:142
11580991770,176cyclictest14281-21kworker/u16:2+efi_rts_wq23:00:130
11580991750,174cyclictest8467-21kworker/u16:3+efi_rts_wq19:29:440
11583991740,173cyclictest8467-21kworker/u16:3+efi_rts_wq19:14:413
11582991740,173cyclictest20083-21kworker/u16:0+efi_rts_wq19:59:492
11582991690,168cyclictest20083-21kworker/u16:0+efi_rts_wq20:44:572
11583991680,167cyclictest8467-21kworker/u16:3+efi_rts_wq20:35:143
11583991680,167cyclictest5925-21kworker/u16:0+efi_rts_wq22:45:193
11580991620,161cyclictest8467-21kworker/u16:3+efi_rts_wq21:15:020
11583991580,157cyclictest8467-21kworker/u16:3+efi_rts_wq19:50:113
11582991570,156cyclictest8467-21kworker/u16:3+efi_rts_wq21:00:132
11581991550,154cyclictest2792-21kworker/u16:4+efi_rts_wq22:40:141
11583991530,152cyclictest20083-21kworker/u16:0+efi_rts_wq20:09:513
11580991420,141cyclictest14281-21kworker/u16:2+efi_rts_wq22:55:220
11580991410,140cyclictest8467-21kworker/u16:3+efi_rts_wq21:20:130
11580991390,138cyclictest8467-21kworker/u16:3+efi_rts_wq21:05:000
11583991340,133cyclictest8467-21kworker/u16:3+efi_rts_wq20:10:123
11582991230,123cyclictest14281-21kworker/u16:2+efi_rts_wq22:55:142
11580991220,119cyclictest14281-21kworker/u16:2+efi_rts_wq22:30:150
11581991120,111cyclictest8467-21kworker/u16:3+efi_rts_wq19:30:111
11582991110,110cyclictest14281-21kworker/u16:2+efi_rts_wq22:15:142
11582991110,110cyclictest14281-21kworker/u16:2+efi_rts_wq22:15:132
11580993327,5cyclictest821-21snmpd21:26:400
11583993230,2cyclictest821-21snmpd20:22:293
11583993229,2cyclictest821-21snmpd22:17:013
11583993229,2cyclictest821-21snmpd22:17:003
11583993229,2cyclictest821-21snmpd21:25:533
11583993229,2cyclictest821-21snmpd20:50:063
11583993229,2cyclictest821-21snmpd00:15:463
11581993230,2cyclictest821-21snmpd22:55:411
11581993230,2cyclictest821-21snmpd00:07:451
11580993229,3cyclictest821-21snmpd20:01:530
11580993229,3cyclictest821-21snmpd00:28:070
11580993229,2cyclictest821-21snmpd22:01:390
11580993228,4cyclictest821-21snmpd21:37:490
11583993130,1cyclictest821-21snmpd22:52:343
11583993129,2cyclictest821-21snmpd23:32:173
11583993129,2cyclictest821-21snmpd19:18:103
11583993129,2cyclictest821-21snmpd00:09:583
11583993128,2cyclictest821-21snmpd00:20:303
11582993129,2cyclictest821-21snmpd00:27:352
11582993129,2cyclictest821-21snmpd00:03:392
11581993130,1cyclictest821-21snmpd23:11:501
11581993129,2cyclictest821-21snmpd20:55:361
11580993130,1cyclictest821-21snmpd21:52:210
11580993128,3cyclictest821-21snmpd20:29:050
11580993128,2cyclictest821-21snmpd21:49:140
11583993029,1cyclictest821-21snmpd23:19:003
11583993029,1cyclictest821-21snmpd21:31:553
11583993029,1cyclictest821-21snmpd20:58:013
11583993029,1cyclictest821-21snmpd20:46:043
11583993028,2cyclictest821-21snmpd23:49:523
11583993028,2cyclictest821-21snmpd22:03:473
11583993028,2cyclictest364-21cat21:15:153
11582993029,1cyclictest821-21snmpd21:11:452
11582993028,2cyclictest821-21snmpd19:25:252
11581993029,1cyclictest821-21snmpd23:35:571
11581993029,1cyclictest821-21snmpd22:52:281
11581993029,1cyclictest821-21snmpd22:05:141
11581993029,1cyclictest821-21snmpd21:13:431
11581993029,1cyclictest821-21snmpd19:18:401
11581993029,1cyclictest821-21snmpd00:38:101
11581993029,1cyclictest821-21snmpd00:12:241
11581993028,2cyclictest821-21snmpd23:34:531
11580993029,1cyclictest821-21snmpd23:51:040
11580993029,1cyclictest821-21snmpd23:38:170
11580993029,1cyclictest821-21snmpd22:35:070
11580993029,1cyclictest821-21snmpd21:13:160
11583992929,0cyclictest437-21kworker/3:3+events22:36:273
11583992929,0cyclictest29739-21kworker/3:0+events23:03:223
11582992929,0cyclictest8468-21kworker/u16:1+atlantic23:47:372
11582992929,0cyclictest821-21snmpd21:17:462
11581992928,1cyclictest821-21snmpd21:20:381
11581992928,1cyclictest821-21snmpd19:25:461
11581992928,1cyclictest821-21snmpd00:34:531
11581992927,2cyclictest821-21snmpd20:40:181
11580992928,1cyclictest821-21snmpd19:12:420
11582992828,0cyclictest821-21snmpd21:35:582
11582992826,2cyclictest821-21snmpd19:42:312
11581992827,1cyclictest821-21snmpd22:12:181
11581992827,1cyclictest821-21snmpd21:49:171
11581992827,1cyclictest821-21snmpd00:17:301
11581992826,2cyclictest821-21snmpd20:49:331
11581992826,2cyclictest820-21ntpd20:11:081
11580992827,1cyclictest821-21snmpd21:40:260
11583992726,1cyclictest821-21snmpd23:27:543
11583992726,1cyclictest821-21snmpd22:28:013
11583992726,1cyclictest821-21snmpd21:08:193
11583992726,1cyclictest437-21kworker/3:3+events22:32:163
11582992727,0cyclictest14281-21kworker/u16:2+atlantic22:42:542
11582992726,1cyclictest821-21snmpd21:55:412
11582992726,1cyclictest821-21snmpd20:30:472
11581992725,2cyclictest821-21snmpd22:15:311
11581992725,2cyclictest821-21snmpd22:15:301
11581992725,2cyclictest821-21snmpd20:36:231
11580992726,1cyclictest821-21snmpd22:22:060
11580992724,2cyclictest821-21snmpd20:50:460
11583992625,1cyclictest821-21snmpd19:57:413
11583992625,1cyclictest821-21snmpd19:33:073
11583992625,1cyclictest27544-21kworker/3:1+events23:44:223
11582992626,0cyclictest75950irq/132-enp1s023:00:242
11582992625,1cyclictest821-21snmpd22:27:492
11582992624,2cyclictest821-21snmpd21:31:492
11582992624,2cyclictest821-21snmpd19:36:172
11582992624,2cyclictest0-21swapper/200:16:452
11581992624,2cyclictest821-21snmpd23:57:131
11580992624,2cyclictest821-21snmpd22:43:160
11580992623,2cyclictest821-21snmpd21:57:440
11583992524,1cyclictest821-21snmpd21:40:403
11583992524,1cyclictest821-21snmpd20:18:483
11582992525,0cyclictest14281-21kworker/u16:2+atlantic23:24:082
11582992525,0cyclictest14281-21kworker/u16:2+atlantic22:10:132
11581992524,1cyclictest821-21snmpd22:23:211
11581992524,1cyclictest821-21snmpd21:54:571
11581992524,1cyclictest821-21snmpd21:25:281
11580992522,2cyclictest821-21snmpd00:33:020
11582992423,1cyclictest821-21snmpd19:52:282
11582992423,1cyclictest821-21snmpd19:23:452
11582992422,2cyclictest2516-21cat21:20:142
11581992423,1cyclictest821-21snmpd20:08:301
11583992322,1cyclictest821-21snmpd20:26:063
11582992323,0cyclictest20083-21kworker/u16:0+atlantic21:05:292
11581992321,2cyclictest821-21snmpd23:08:481
11580992322,1cyclictest821-21snmpd23:18:030
11582992222,0cyclictest25381-21kworker/u16:3+atlantic00:33:502
11580992221,1cyclictest821-21snmpd23:07:570
11580992219,2cyclictest821-21snmpd00:10:130
11580992120,1cyclictest821-21snmpd22:06:440
11583992019,1cyclictest821-21snmpd20:34:383
11581991817,1cyclictest821-21snmpd23:45:421
11583991414,0cyclictest18457-21kworker/3:1+events21:00:303
11582991413,1cyclictest821-21snmpd20:36:392
115809987,1cyclictest27017-21cat19:45:110
115819954,1cyclictest27002-21cat19:45:121
115819943,1cyclictest11011-21cut21:40:181
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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