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2026-09-04 - 19:05

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 all highest latencies:
System rackcslot3s.osadl.org (updated Fri Sep 04, 2026 12:43:54)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
277652331303,25sleep20-21swapper/207:07:412
277862316308,5sleep30-21swapper/307:07:583
277842316308,5sleep10-21swapper/107:07:561
261072315308,5sleep00-21swapper/007:05:070
28210993020,301cyclictest18698-21kworker/u16:0+efi_rts_wq12:30:102
28210992970,296cyclictest4002-21kworker/u16:2+efi_rts_wq09:05:122
28210992970,296cyclictest4002-21kworker/u16:2+efi_rts_wq08:05:122
28205992970,296cyclictest4002-21kworker/u16:2+efi_rts_wq10:35:130
28205992960,295cyclictest30029-21kworker/u16:0+efi_rts_wq08:52:130
28205992960,295cyclictest30029-21kworker/u16:0+efi_rts_wq07:55:100
28209992950,292cyclictest4002-21kworker/u16:2+efi_rts_wq11:05:111
28211992940,292cyclictest32074-21kworker/u16:1+efi_rts_wq11:20:143
28211992940,292cyclictest30029-21kworker/u16:0+efi_rts_wq07:45:123
28210992940,293cyclictest30029-21kworker/u16:0+efi_rts_wq08:30:122
28210992940,293cyclictest18698-21kworker/u16:0+efi_rts_wq12:07:462
28209992940,293cyclictest32074-21kworker/u16:1+efi_rts_wq11:27:381
28211992930,292cyclictest32074-21kworker/u16:1+efi_rts_wq11:55:133
28210992910,290cyclictest4002-21kworker/u16:2+efi_rts_wq07:30:112
28205992910,290cyclictest32074-21kworker/u16:1+efi_rts_wq11:30:160
28205992900,289cyclictest30029-21kworker/u16:0+efi_rts_wq09:40:130
28209992890,288cyclictest4002-21kworker/u16:2+efi_rts_wq09:00:111
28209992890,288cyclictest30029-21kworker/u16:0+efi_rts_wq08:30:121
28209992880,287cyclictest30029-21kworker/u16:0+efi_rts_wq11:00:111
28209992880,287cyclictest30029-21kworker/u16:0+efi_rts_wq07:57:031
28209992870,286cyclictest30029-21kworker/u16:0+efi_rts_wq07:11:541
28209992860,285cyclictest30029-21kworker/u16:0+efi_rts_wq07:26:571
28209992850,284cyclictest4002-21kworker/u16:2+efi_rts_wq07:30:111
28211992830,282cyclictest32074-21kworker/u16:1+efi_rts_wq12:02:453
28205992830,282cyclictest32074-21kworker/u16:1+efi_rts_wq11:17:380
28211992820,281cyclictest30029-21kworker/u16:0+efi_rts_wq07:31:573
28210992820,281cyclictest4002-21kworker/u16:2+efi_rts_wq08:00:122
28210992820,281cyclictest32074-21kworker/u16:1+efi_rts_wq11:10:172
28210992790,278cyclictest4002-21kworker/u16:2+efi_rts_wq10:20:142
28209992790,278cyclictest30029-21kworker/u16:0+efi_rts_wq10:55:131
28209992790,278cyclictest30029-21kworker/u16:0+efi_rts_wq10:50:161
28209992780,277cyclictest30029-21kworker/u16:0+efi_rts_wq09:35:111
28211992770,276cyclictest4002-21kworker/u16:2+efi_rts_wq08:15:113
28211992770,276cyclictest30029-21kworker/u16:0+efi_rts_wq10:17:273
28210992770,276cyclictest30029-21kworker/u16:0+efi_rts_wq10:10:172
28211992760,275cyclictest30029-21kworker/u16:0+efi_rts_wq11:00:123
28205992760,275cyclictest30029-21kworker/u16:0+efi_rts_wq10:02:240
28205992750,274cyclictest4002-21kworker/u16:2+efi_rts_wq11:07:350
28209992740,273cyclictest32074-21kworker/u16:1+efi_rts_wq11:35:131
28205992740,273cyclictest32074-21kworker/u16:1+efi_rts_wq12:20:140
28211992730,271cyclictest4002-21kworker/u16:2+efi_rts_wq11:05:113
28211992720,271cyclictest30029-21kworker/u16:0+efi_rts_wq09:10:123
28211992720,271cyclictest18698-21kworker/u16:0+efi_rts_wq12:25:133
28209992720,271cyclictest30029-21kworker/u16:0+efi_rts_wq09:40:121
28205992720,271cyclictest30029-21kworker/u16:0+efi_rts_wq07:35:100
28205992720,269cyclictest30029-21kworker/u16:0+efi_rts_wq09:20:120
28205992720,269cyclictest30029-21kworker/u16:0+efi_rts_wq09:20:120
28205992710,270cyclictest32074-21kworker/u16:1+efi_rts_wq11:10:170
28209992690,268cyclictest4002-21kworker/u16:2+efi_rts_wq08:15:111
28211992680,267cyclictest32074-21kworker/u16:1+efi_rts_wq11:40:133
28205992680,266cyclictest18698-21kworker/u16:0+efi_rts_wq11:55:140
28205992670,266cyclictest4002-21kworker/u16:2+efi_rts_wq08:40:120
28211992660,265cyclictest4002-21kworker/u16:2+efi_rts_wq07:20:123
28205992660,265cyclictest4002-21kworker/u16:2+efi_rts_wq08:45:120
28211992640,263cyclictest4002-21kworker/u16:2+efi_rts_wq10:05:113
28211992640,263cyclictest30029-21kworker/u16:0+efi_rts_wq07:40:133
28210992640,263cyclictest30029-21kworker/u16:0+efi_rts_wq09:37:202
28205992630,262cyclictest18698-21kworker/u16:0+efi_rts_wq12:05:120
28211992620,261cyclictest30029-21kworker/u16:0+efi_rts_wq09:20:123
28211992620,261cyclictest30029-21kworker/u16:0+efi_rts_wq09:20:123
28205992620,261cyclictest4002-21kworker/u16:2+efi_rts_wq11:45:110
28209992600,258cyclictest32074-21kworker/u16:1+efi_rts_wq11:30:161
28211992590,258cyclictest30029-21kworker/u16:0+efi_rts_wq10:35:133
28211992580,257cyclictest4002-21kworker/u16:2+efi_rts_wq11:47:433
28211992580,257cyclictest30029-21kworker/u16:0+efi_rts_wq09:30:113
28210992580,257cyclictest4002-21kworker/u16:2+efi_rts_wq09:25:122
28211992550,254cyclictest30029-21kworker/u16:0+efi_rts_wq07:15:013
28209992550,254cyclictest4002-21kworker/u16:2+efi_rts_wq09:25:121
28205992550,254cyclictest30029-21kworker/u16:0+efi_rts_wq09:27:180
28210992540,253cyclictest30029-21kworker/u16:0+efi_rts_wq10:45:112
28205992530,252cyclictest32074-21kworker/u16:1+efi_rts_wq12:00:130
28210992510,250cyclictest4002-21kworker/u16:2+efi_rts_wq08:45:122
28205992500,249cyclictest4002-21kworker/u16:2+efi_rts_wq09:12:150
28205992500,249cyclictest4002-21kworker/u16:2+efi_rts_wq08:35:140
28211992480,247cyclictest4002-21kworker/u16:2+efi_rts_wq08:50:133
28205992480,247cyclictest4002-21kworker/u16:2+efi_rts_wq10:25:120
28210992470,246cyclictest30029-21kworker/u16:0+efi_rts_wq07:35:112
28210992430,242cyclictest30029-21kworker/u16:0+efi_rts_wq09:15:112
28209992430,242cyclictest30029-21kworker/u16:0+efi_rts_wq07:50:121
28205992430,242cyclictest32074-21kworker/u16:1+efi_rts_wq11:37:400
28210992350,234cyclictest32074-21kworker/u16:1+efi_rts_wq11:20:142
28210992340,233cyclictest30029-21kworker/u16:0+efi_rts_wq09:45:112
28210992320,231cyclictest4002-21kworker/u16:2+efi_rts_wq07:25:132
28210992320,231cyclictest32074-21kworker/u16:1+efi_rts_wq12:35:102
28209992320,229cyclictest18698-21kworker/u16:0+efi_rts_wq12:10:111
28205992320,231cyclictest30029-21kworker/u16:0+efi_rts_wq07:47:010
28211992270,226cyclictest30029-21kworker/u16:0+efi_rts_wq08:37:113
28209992260,224cyclictest4002-21kworker/u16:2+efi_rts_wq10:30:111
28205992260,225cyclictest30029-21kworker/u16:0+efi_rts_wq10:50:160
28211992250,224cyclictest30029-21kworker/u16:0+efi_rts_wq08:12:063
28209992230,222cyclictest30029-21kworker/u16:0+efi_rts_wq08:02:041
28211992220,220cyclictest4002-21kworker/u16:2+efi_rts_wq10:30:113
28205992210,220cyclictest32074-21kworker/u16:1+efi_rts_wq11:25:120
28209992200,219cyclictest4002-21kworker/u16:2+efi_rts_wq08:35:141
28205992200,219cyclictest30029-21kworker/u16:0+efi_rts_wq08:20:120
28210992190,218cyclictest30029-21kworker/u16:0+efi_rts_wq10:15:142
28211992170,216cyclictest4002-21kworker/u16:2+efi_rts_wq10:40:123
28205992170,216cyclictest18698-21kworker/u16:0+efi_rts_wq12:10:110
28210992160,215cyclictest30029-21kworker/u16:0+efi_rts_wq09:50:142
28209992150,214cyclictest18698-21kworker/u16:0+efi_rts_wq12:30:101
28210992140,213cyclictest30029-21kworker/u16:0+efi_rts_wq10:32:312
28211992130,212cyclictest4002-21kworker/u16:2+efi_rts_wq09:55:123
28209992130,212cyclictest4002-21kworker/u16:2+efi_rts_wq09:05:121
28209992130,212cyclictest30029-21kworker/u16:0+efi_rts_wq10:45:121
28209992130,212cyclictest30029-21kworker/u16:0+efi_rts_wq09:52:221
28209992110,210cyclictest18698-21kworker/u16:0+efi_rts_wq11:52:441
28211992060,203cyclictest32074-21kworker/u16:1+efi_rts_wq11:10:173
28209992040,203cyclictest30029-21kworker/u16:0+efi_rts_wq09:57:231
28209992040,203cyclictest30029-21kworker/u16:0+efi_rts_wq08:22:081
28210992010,200cyclictest30029-21kworker/u16:0+efi_rts_wq07:40:122
28209992010,200cyclictest30029-21kworker/u16:0+efi_rts_wq07:16:541
28210991980,197cyclictest30029-21kworker/u16:0+efi_rts_wq08:55:112
28205991920,191cyclictest30029-21kworker/u16:0+efi_rts_wq09:17:160
28211991910,190cyclictest4002-21kworker/u16:2+efi_rts_wq09:00:113
28210991870,186cyclictest32074-21kworker/u16:1+efi_rts_wq11:40:142
28209991870,186cyclictest4002-21kworker/u16:2+efi_rts_wq11:22:371
28211991860,185cyclictest30029-21kworker/u16:0+efi_rts_wq10:22:283
28210991800,179cyclictest4002-21kworker/u16:2+efi_rts_wq11:45:112
28209991800,179cyclictest30029-21kworker/u16:0+efi_rts_wq08:57:141
28209991790,178cyclictest4002-21kworker/u16:2+efi_rts_wq11:45:131
28205991790,178cyclictest4002-21kworker/u16:2+efi_rts_wq10:40:120
28211991780,177cyclictest4002-21kworker/u16:2+efi_rts_wq08:00:133
28205991770,176cyclictest4002-21kworker/u16:2+efi_rts_wq08:05:120
28209991730,172cyclictest4002-21kworker/u16:2+efi_rts_wq08:42:121
28211991680,167cyclictest32074-21kworker/u16:1+efi_rts_wq12:20:143
28209991660,165cyclictest30029-21kworker/u16:0+efi_rts_wq10:00:131
28205991650,164cyclictest30029-21kworker/u16:0+efi_rts_wq07:15:020
28205991630,161cyclictest32074-21kworker/u16:1+efi_rts_wq11:50:150
28210991600,159cyclictest32074-21kworker/u16:1+efi_rts_wq11:15:102
28210991600,159cyclictest30029-21kworker/u16:0+efi_rts_wq09:02:152
28205991590,158cyclictest30029-21kworker/u16:0+efi_rts_wq07:52:020
28211991580,157cyclictest32074-21kworker/u16:1+efi_rts_wq11:15:103
28211991560,155cyclictest32074-21kworker/u16:1+efi_rts_wq11:30:163
28209991560,155cyclictest30029-21kworker/u16:0+efi_rts_wq10:40:121
28210991550,154cyclictest30029-21kworker/u16:0+efi_rts_wq08:25:122
28210991540,153cyclictest32074-21kworker/u16:1+efi_rts_wq12:15:122
28209991540,153cyclictest30029-21kworker/u16:0+efi_rts_wq10:12:271
28210991530,152cyclictest4002-21kworker/u16:2+efi_rts_wq10:42:322
28210991530,152cyclictest30029-21kworker/u16:0+efi_rts_wq10:55:122
28209991500,149cyclictest30029-21kworker/u16:0+efi_rts_wq09:47:211
28211991480,147cyclictest30029-21kworker/u16:0+efi_rts_wq09:50:143
28205991430,142cyclictest30029-21kworker/u16:0+efi_rts_wq09:30:110
28205991430,142cyclictest30029-21kworker/u16:0+efi_rts_wq08:27:090
28211991410,140cyclictest32074-21kworker/u16:1+efi_rts_wq12:12:483
28209991360,135cyclictest32074-21kworker/u16:1+efi_rts_wq11:12:361
28205991360,135cyclictest30029-21kworker/u16:0+efi_rts_wq08:17:070
28205991360,135cyclictest30029-21kworker/u16:0+efi_rts_wq07:10:130
28209991350,132cyclictest30029-21kworker/u16:0+efi_rts_wq09:15:111
28205991350,134cyclictest18698-21kworker/u16:0+efi_rts_wq12:25:130
28211991290,128cyclictest32074-21kworker/u16:1+efi_rts_wq11:35:133
28209991260,125cyclictest32074-21kworker/u16:1+efi_rts_wq12:17:491
28205991260,125cyclictest32074-21kworker/u16:1+efi_rts_wq12:37:530
28209991220,121cyclictest32074-21kworker/u16:1+efi_rts_wq11:42:421
28211991200,119cyclictest30029-21kworker/u16:0+efi_rts_wq09:35:113
28210991180,117cyclictest30029-21kworker/u16:0+efi_rts_wq07:10:132
28211991160,115cyclictest30029-21kworker/u16:0+efi_rts_wq10:57:343
28210991150,114cyclictest4002-21kworker/u16:2+efi_rts_wq10:05:112
28209991150,114cyclictest4002-21kworker/u16:2+efi_rts_wq10:27:291
28209991140,113cyclictest30029-21kworker/u16:0+efi_rts_wq08:25:121
28205991100,110cyclictest30029-21kworker/u16:0+efi_rts_wq10:45:120
28210991030,102cyclictest4002-21kworker/u16:2+efi_rts_wq09:10:132
28210993330,2cyclictest809-21snmpd12:28:462
28211993229,2cyclictest809-21snmpd10:29:363
28211993229,2cyclictest809-21snmpd09:29:383
28205993230,2cyclictest809-21snmpd10:17:180
28211993130,1cyclictest809-21snmpd12:06:573
28211993129,2cyclictest809-21snmpd07:38:143
28211993128,2cyclictest809-21snmpd09:05:313
28210993129,2cyclictest809-21snmpd12:03:092
28210993129,2cyclictest809-21snmpd11:36:502
28209993129,1cyclictest809-21snmpd12:39:071
28209993128,2cyclictest809-21snmpd09:31:531
28205993129,2cyclictest809-21snmpd09:57:240
28205993129,2cyclictest809-21snmpd09:35:020
28205993129,2cyclictest809-21snmpd08:34:280
28211993029,1cyclictest809-21snmpd12:38:253
28211993029,1cyclictest809-21snmpd10:51:533
28211993029,1cyclictest809-21snmpd08:25:573
28211993029,1cyclictest809-21snmpd07:55:103
28210993029,1cyclictest809-21snmpd11:52:482
28210993029,1cyclictest809-21snmpd07:19:202
28210993028,2cyclictest809-21snmpd12:10:062
28210993028,2cyclictest809-21snmpd10:51:132
28210993028,2cyclictest18983-21cat09:20:142
28210993028,2cyclictest18983-21cat09:20:142
28209993030,0cyclictest23550-21kworker/1:0+events07:45:331
28209993029,1cyclictest809-21snmpd10:05:091
28209993029,1cyclictest809-21snmpd08:52:431
28209993029,1cyclictest25187-21kworker/1:0+events12:01:001
28209993028,2cyclictest809-21snmpd10:20:391
28209993028,2cyclictest809-21snmpd08:13:181
28209993027,2cyclictest809-21snmpd09:10:521
28205993030,0cyclictest809-21snmpd11:20:560
28205993029,1cyclictest809-21snmpd12:18:120
28205993029,1cyclictest809-21snmpd11:41:380
28205993029,1cyclictest809-21snmpd08:03:120
28205993028,2cyclictest809-21snmpd10:59:070
28205993028,2cyclictest809-21snmpd07:24:290
28211992928,1cyclictest809-21snmpd11:51:203
28211992928,1cyclictest809-21snmpd11:26:023
28211992928,1cyclictest809-21snmpd09:43:563
28211992928,1cyclictest809-21snmpd07:52:573
28211992927,2cyclictest809-21snmpd10:46:223
28211992927,2cyclictest809-21snmpd08:57:523
28210992928,1cyclictest809-21snmpd12:20:032
28210992928,1cyclictest809-21snmpd11:34:592
28210992928,1cyclictest809-21snmpd11:06:042
28210992928,1cyclictest809-21snmpd08:12:512
28210992928,1cyclictest809-21snmpd07:57:392
28210992928,1cyclictest809-21snmpd07:21:562
28210992927,2cyclictest809-21snmpd11:26:232
28209992929,0cyclictest7964-21kworker/1:1+events07:20:331
28209992929,0cyclictest27459-21kworker/1:4+events12:28:161
28209992929,0cyclictest27459-21kworker/1:4+events12:05:441
28209992929,0cyclictest23550-21kworker/1:0+events09:24:211
28209992929,0cyclictest23550-21kworker/1:0+events09:24:211
28209992929,0cyclictest23550-21kworker/1:0+events07:40:291
28209992928,1cyclictest809-21snmpd11:55:571
28209992927,2cyclictest809-21snmpd10:15:151
28205992928,1cyclictest809-21snmpd11:03:430
28205992928,1cyclictest809-21snmpd10:23:510
28211992827,1cyclictest809-21snmpd10:14:423
28211992827,1cyclictest809-21snmpd09:47:413
28211992827,1cyclictest809-21snmpd08:47:133
28210992827,1cyclictest809-21snmpd08:41:342
28210992827,1cyclictest809-21snmpd07:50:332
28210992826,2cyclictest809-21snmpd07:48:172
28209992826,2cyclictest7418-21cat07:35:121
28205992827,1cyclictest809-21snmpd09:47:170
28205992827,1cyclictest809-21snmpd07:43:290
28205992827,1cyclictest5353-21cat07:30:130
28211992726,1cyclictest809-21snmpd12:17:373
28211992726,1cyclictest809-21snmpd08:24:183
28211992726,1cyclictest809-21snmpd08:09:243
28211992726,1cyclictest809-21snmpd07:10:083
28210992726,1cyclictest809-21snmpd10:26:242
28210992726,1cyclictest809-21snmpd09:55:572
28210992726,1cyclictest809-21snmpd08:37:372
28210992725,2cyclictest809-21snmpd11:01:102
28210992725,2cyclictest809-21snmpd08:20:002
28209992727,0cyclictest27459-21kworker/1:4+events12:24:201
28209992727,0cyclictest23550-21kworker/1:0+events08:08:531
28209992726,1cyclictest809-21snmpd08:47:551
28205992725,2cyclictest809-21snmpd09:01:460
28211992625,1cyclictest809-21snmpd10:00:513
28209992625,1cyclictest809-21snmpd11:18:171
28211992524,1cyclictest809-21snmpd08:41:013
28210992524,1cyclictest809-21snmpd08:50:312
28205992525,0cyclictest30029-21kworker/u16:0+atlantic10:33:220
28205992523,2cyclictest813-21ntpd09:53:540
28211992422,2cyclictest809-21snmpd07:29:353
28209992424,0cyclictest10635-21kworker/1:1+events10:38:441
28205992423,1cyclictest809-21snmpd08:58:520
28205992423,1cyclictest809-21snmpd08:13:270
28211992322,1cyclictest809-21snmpd08:34:343
28211992321,2cyclictest809-21snmpd12:33:013
28210992323,0cyclictest74750irq/131-enp1s010:38:522
28210992322,1cyclictest809-21snmpd10:03:572
28210992220,2cyclictest809-21snmpd08:21:332
28205992119,2cyclictest809-21snmpd09:07:520
28205992018,2cyclictest809-21snmpd12:30:370
28205992018,2cyclictest809-21snmpd07:26:110
28210991917,2cyclictest27266-21cat09:40:142
28210991817,1cyclictest809-21snmpd11:57:132
28205991717,0cyclictest8444-21kworker/0:1+events_freezable10:14:480
28205991717,0cyclictest8444-21kworker/0:1+events_freezable10:08:240
28211991514,1cyclictest809-21snmpd09:17:203
282109954,1cyclictest23618-21ls09:30:182
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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