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2026-06-22 - 11:58

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 Mon Jun 22, 2026 00:43:55)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
236532327303,21sleep20-21swapper/219:06:242
239362317304,4sleep10-21swapper/119:10:001
238042316311,3sleep30-21swapper/319:08:213
220952314306,5sleep00-21swapper/019:05:060
24199992980,297cyclictest2489-21kworker/u16:3+efi_rts_wq22:59:580
24201992960,295cyclictest23926-21kworker/u16:0+efi_rts_wq21:25:122
24200992960,295cyclictest26302-21kworker/u16:0+efi_rts_wq23:40:131
24201992950,294cyclictest26302-21kworker/u16:0+efi_rts_wq23:25:112
24201992950,294cyclictest1513-21kworker/u16:1+efi_rts_wq00:26:072
24202992940,293cyclictest1513-21kworker/u16:1+efi_rts_wq00:05:143
24202992930,292cyclictest28322-21kworker/u16:2+efi_rts_wq21:50:143
24202992930,291cyclictest2489-21kworker/u16:3+efi_rts_wq22:35:143
24200992920,291cyclictest28322-21kworker/u16:2+efi_rts_wq21:15:131
24199992920,291cyclictest26302-21kworker/u16:0+efi_rts_wq23:00:140
24199992910,290cyclictest26302-21kworker/u16:0+efi_rts_wq23:40:130
24202992900,287cyclictest1513-21kworker/u16:1+efi_rts_wq00:10:143
24200992900,289cyclictest23926-21kworker/u16:0+efi_rts_wq21:05:131
24199992890,288cyclictest28322-21kworker/u16:2+efi_rts_wq20:30:150
24199992880,287cyclictest23926-21kworker/u16:0+efi_rts_wq20:50:130
24199992870,286cyclictest28322-21kworker/u16:2+efi_rts_wq22:05:110
24199992870,286cyclictest23926-21kworker/u16:0+efi_rts_wq20:25:140
24201992860,285cyclictest28322-21kworker/u16:2+efi_rts_wq19:45:142
24200992860,285cyclictest31354-21kworker/u16:1+efi_rts_wq22:39:531
24202992850,284cyclictest23926-21kworker/u16:0+efi_rts_wq21:40:123
24202992840,283cyclictest28322-21kworker/u16:2+efi_rts_wq19:10:213
24202992840,283cyclictest23926-21kworker/u16:0+efi_rts_wq19:20:143
24200992840,283cyclictest28322-21kworker/u16:2+efi_rts_wq21:55:111
24199992840,283cyclictest28322-21kworker/u16:2+efi_rts_wq21:10:130
24202992830,282cyclictest2489-21kworker/u16:3+efi_rts_wq23:05:123
24200992830,282cyclictest28322-21kworker/u16:2+efi_rts_wq21:24:401
24199992830,282cyclictest1513-21kworker/u16:1+efi_rts_wq23:30:140
24200992820,281cyclictest23926-21kworker/u16:0+efi_rts_wq20:15:111
24199992810,280cyclictest2489-21kworker/u16:3+efi_rts_wq23:15:110
24201992790,278cyclictest28322-21kworker/u16:2+efi_rts_wq20:40:112
24201992780,277cyclictest2489-21kworker/u16:3+efi_rts_wq22:54:582
24200992780,277cyclictest28322-21kworker/u16:2+efi_rts_wq19:54:211
24201992770,276cyclictest31354-21kworker/u16:1+efi_rts_wq22:44:562
24201992770,276cyclictest28322-21kworker/u16:2+efi_rts_wq19:40:122
24201992770,276cyclictest2489-21kworker/u16:3+efi_rts_wq23:15:012
24200992770,276cyclictest26302-21kworker/u16:0+efi_rts_wq00:30:131
24199992770,276cyclictest23926-21kworker/u16:0+efi_rts_wq19:50:140
24199992770,276cyclictest1513-21kworker/u16:1+efi_rts_wq23:50:120
24202992760,275cyclictest2489-21kworker/u16:3+efi_rts_wq22:30:123
24202992760,274cyclictest2489-21kworker/u16:3+efi_rts_wq22:50:133
24201992750,274cyclictest23926-21kworker/u16:0+efi_rts_wq20:55:132
24200992740,273cyclictest28322-21kworker/u16:2+efi_rts_wq20:30:141
24199992740,273cyclictest2489-21kworker/u16:3+efi_rts_wq22:34:530
24202992730,272cyclictest1513-21kworker/u16:1+efi_rts_wq00:20:123
24200992730,272cyclictest28322-21kworker/u16:2+efi_rts_wq19:10:211
24199992730,272cyclictest26302-21kworker/u16:0+efi_rts_wq00:00:120
24199992730,272cyclictest23926-21kworker/u16:0+efi_rts_wq21:45:120
24202992710,270cyclictest26302-21kworker/u16:0+efi_rts_wq23:40:073
24202992710,268cyclictest23926-21kworker/u16:0+efi_rts_wq22:00:123
24201992710,270cyclictest31354-21kworker/u16:1+efi_rts_wq22:14:482
24202992700,269cyclictest28322-21kworker/u16:2+efi_rts_wq21:30:123
24202992690,268cyclictest31354-21kworker/u16:1+efi_rts_wq22:15:143
24200992680,267cyclictest1513-21kworker/u16:1+efi_rts_wq23:55:121
24199992680,267cyclictest1513-21kworker/u16:1+efi_rts_wq00:10:140
24200992660,265cyclictest28322-21kworker/u16:2+efi_rts_wq20:39:311
24201992650,264cyclictest1513-21kworker/u16:1+efi_rts_wq23:55:122
24201992610,260cyclictest23926-21kworker/u16:0+efi_rts_wq21:05:142
24199992610,260cyclictest26302-21kworker/u16:0+efi_rts_wq23:25:110
24202992570,256cyclictest28322-21kworker/u16:2+efi_rts_wq19:35:143
24202992570,255cyclictest2489-21kworker/u16:3+efi_rts_wq22:40:123
24202992550,254cyclictest28322-21kworker/u16:2+efi_rts_wq19:15:123
24202992550,254cyclictest23926-21kworker/u16:0+efi_rts_wq20:34:303
24199992550,254cyclictest28322-21kworker/u16:2+efi_rts_wq19:55:130
24201992530,252cyclictest23926-21kworker/u16:0+efi_rts_wq21:10:122
24199992510,250cyclictest2489-21kworker/u16:3+efi_rts_wq22:50:140
24202992500,249cyclictest1513-21kworker/u16:1+efi_rts_wq00:01:033
24202992480,247cyclictest23926-21kworker/u16:0+efi_rts_wq20:45:113
24199992480,247cyclictest23926-21kworker/u16:0+efi_rts_wq20:35:100
24200992470,246cyclictest28322-21kworker/u16:2+efi_rts_wq21:00:111
24200992460,245cyclictest23926-21kworker/u16:0+efi_rts_wq21:40:131
24202992420,241cyclictest1513-21kworker/u16:1+efi_rts_wq00:25:133
24200992420,241cyclictest2489-21kworker/u16:3+efi_rts_wq23:15:111
24202992390,238cyclictest23926-21kworker/u16:0+efi_rts_wq19:30:123
24202992390,238cyclictest23926-21kworker/u16:0+efi_rts_wq19:30:113
24199992390,238cyclictest23926-21kworker/u16:0+efi_rts_wq20:00:130
24202992370,236cyclictest26302-21kworker/u16:0+efi_rts_wq00:15:113
24200992370,236cyclictest28322-21kworker/u16:2+efi_rts_wq21:35:131
24200992370,236cyclictest1513-21kworker/u16:1+efi_rts_wq00:36:091
24200992350,234cyclictest26302-21kworker/u16:0+efi_rts_wq23:45:121
24201992340,233cyclictest1513-21kworker/u16:1+efi_rts_wq23:35:052
24199992330,231cyclictest23926-21kworker/u16:0+efi_rts_wq19:30:120
24199992330,231cyclictest23926-21kworker/u16:0+efi_rts_wq19:30:110
24199992300,229cyclictest26302-21kworker/u16:0+efi_rts_wq23:35:130
24201992290,228cyclictest26302-21kworker/u16:0+efi_rts_wq23:20:132
24200992270,225cyclictest2489-21kworker/u16:3+efi_rts_wq22:55:121
24202992230,222cyclictest2489-21kworker/u16:3+efi_rts_wq22:55:123
24199992220,221cyclictest28322-21kworker/u16:2+efi_rts_wq20:19:260
24199992220,221cyclictest23926-21kworker/u16:0+efi_rts_wq21:30:130
24201992210,220cyclictest31354-21kworker/u16:1+efi_rts_wq22:09:482
24200992210,220cyclictest28322-21kworker/u16:2+efi_rts_wq20:54:341
24201992200,219cyclictest23926-21kworker/u16:0+efi_rts_wq19:55:132
24202992180,217cyclictest23926-21kworker/u16:0+efi_rts_wq21:14:373
24201992150,214cyclictest28322-21kworker/u16:2+efi_rts_wq21:00:112
24200992130,212cyclictest31354-21kworker/u16:1+efi_rts_wq22:19:491
24202992120,211cyclictest23926-21kworker/u16:0+efi_rts_wq19:49:213
24200992120,211cyclictest1513-21kworker/u16:1+efi_rts_wq00:20:121
24201992110,210cyclictest31354-21kworker/u16:1+efi_rts_wq22:30:132
24199992110,210cyclictest1513-21kworker/u16:1+efi_rts_wq00:25:130
24199992080,207cyclictest2489-21kworker/u16:3+efi_rts_wq22:25:120
24199992070,206cyclictest26302-21kworker/u16:0+efi_rts_wq23:45:120
24201992060,204cyclictest31354-21kworker/u16:1+efi_rts_wq22:49:562
24199992050,204cyclictest28322-21kworker/u16:2+efi_rts_wq21:09:370
24200992040,203cyclictest28322-21kworker/u16:2+efi_rts_wq20:10:121
24200992030,202cyclictest31354-21kworker/u16:1+efi_rts_wq22:45:121
24202992010,200cyclictest23926-21kworker/u16:0+efi_rts_wq20:04:233
24202991990,198cyclictest23926-21kworker/u16:0+efi_rts_wq20:05:133
24200991980,197cyclictest28322-21kworker/u16:2+efi_rts_wq19:15:121
24200991960,195cyclictest23926-21kworker/u16:0+efi_rts_wq21:25:121
24202991940,193cyclictest28322-21kworker/u16:2+efi_rts_wq20:29:293
24201991940,193cyclictest23926-21kworker/u16:0+efi_rts_wq20:45:112
24202991930,192cyclictest2489-21kworker/u16:3+efi_rts_wq22:20:123
24202991920,191cyclictest23926-21kworker/u16:0+efi_rts_wq20:55:133
24201991920,191cyclictest2489-21kworker/u16:3+efi_rts_wq23:10:132
24202991910,190cyclictest28322-21kworker/u16:2+efi_rts_wq21:29:413
24199991910,190cyclictest1513-21kworker/u16:1+efi_rts_wq00:31:080
24201991880,187cyclictest26302-21kworker/u16:0+efi_rts_wq00:35:112
24202991850,184cyclictest28322-21kworker/u16:2+efi_rts_wq20:20:123
24200991840,183cyclictest2489-21kworker/u16:3+efi_rts_wq23:10:131
24200991830,181cyclictest23926-21kworker/u16:0+efi_rts_wq19:20:141
24202991800,179cyclictest26302-21kworker/u16:0+efi_rts_wq00:30:133
24199991790,178cyclictest23926-21kworker/u16:0+efi_rts_wq19:39:180
24201991710,170cyclictest23926-21kworker/u16:0+efi_rts_wq19:15:012
24199991710,170cyclictest23926-21kworker/u16:0+efi_rts_wq21:59:450
24200991700,169cyclictest26302-21kworker/u16:0+efi_rts_wq23:25:031
24202991660,165cyclictest23926-21kworker/u16:0+efi_rts_wq19:25:123
24200991650,164cyclictest28322-21kworker/u16:2+efi_rts_wq20:09:241
24200991620,161cyclictest23926-21kworker/u16:0+efi_rts_wq20:00:121
24202991610,160cyclictest28322-21kworker/u16:2+efi_rts_wq20:14:253
24202991590,158cyclictest23926-21kworker/u16:0+efi_rts_wq21:04:363
24199991560,155cyclictest2489-21kworker/u16:3+efi_rts_wq22:20:130
24201991540,153cyclictest28322-21kworker/u16:2+efi_rts_wq21:35:132
24200991530,152cyclictest23926-21kworker/u16:0+efi_rts_wq19:25:121
24199991490,148cyclictest2489-21kworker/u16:3+efi_rts_wq22:35:130
24200991480,147cyclictest23926-21kworker/u16:0+efi_rts_wq21:34:421
24202991460,145cyclictest23926-21kworker/u16:0+efi_rts_wq21:20:143
24201991440,143cyclictest26302-21kworker/u16:0+efi_rts_wq00:06:032
24201991440,143cyclictest1513-21kworker/u16:1+efi_rts_wq23:30:142
24202991430,142cyclictest26302-21kworker/u16:0+efi_rts_wq23:30:133
24200991390,138cyclictest2489-21kworker/u16:3+efi_rts_wq22:29:511
24199991380,137cyclictest26302-21kworker/u16:0+efi_rts_wq00:15:110
24202991350,134cyclictest23926-21kworker/u16:0+efi_rts_wq19:50:133
24201991350,134cyclictest23926-21kworker/u16:0+efi_rts_wq20:24:272
24201991340,133cyclictest2489-21kworker/u16:3+efi_rts_wq22:25:122
24201991330,132cyclictest23926-21kworker/u16:0+efi_rts_wq22:04:462
24202991310,130cyclictest28322-21kworker/u16:2+efi_rts_wq21:49:453
24201991310,130cyclictest23926-21kworker/u16:0+efi_rts_wq20:50:122
24200991310,130cyclictest1513-21kworker/u16:1+efi_rts_wq00:11:051
24201991290,128cyclictest2489-21kworker/u16:3+efi_rts_wq22:20:122
24200991250,124cyclictest23926-21kworker/u16:0+efi_rts_wq19:59:221
24199991200,119cyclictest1513-21kworker/u16:1+efi_rts_wq23:56:010
24199991190,118cyclictest28322-21kworker/u16:2+efi_rts_wq21:54:460
24202991180,117cyclictest1513-21kworker/u16:1+efi_rts_wq23:50:133
24201991180,117cyclictest28322-21kworker/u16:2+efi_rts_wq21:50:152
24202991170,116cyclictest28322-21kworker/u16:2+efi_rts_wq19:55:143
24199991160,115cyclictest2489-21kworker/u16:3+efi_rts_wq23:10:010
24199991160,115cyclictest23926-21kworker/u16:0+efi_rts_wq21:15:130
24200991150,114cyclictest1513-21kworker/u16:1+efi_rts_wq23:51:011
24201991110,110cyclictest23926-21kworker/u16:0+efi_rts_wq19:35:142
24200991100,109cyclictest28322-21kworker/u16:2+efi_rts_wq19:45:131
24199991100,109cyclictest26302-21kworker/u16:0+efi_rts_wq00:35:110
24199991070,106cyclictest23926-21kworker/u16:0+efi_rts_wq21:39:420
24199991060,106cyclictest28322-21kworker/u16:2+efi_rts_wq20:49:330
24202991020,101cyclictest28322-21kworker/u16:2+efi_rts_wq19:40:123
24200991010,100cyclictest28322-21kworker/u16:2+efi_rts_wq20:44:311
24201993230,2cyclictest809-21snmpd20:32:302
24201993229,3cyclictest809-21snmpd23:42:312
24200993229,2cyclictest809-21snmpd22:06:031
24199993230,2cyclictest809-21snmpd22:14:340
24199993229,2cyclictest809-21snmpd20:44:070
24202993130,1cyclictest809-21snmpd21:38:063
24202993129,1cyclictest809-21snmpd23:17:443
24201993129,2cyclictest809-21snmpd20:16:042
24201993129,1cyclictest809-21snmpd20:14:082
24201993128,3cyclictest809-21snmpd22:35:462
24200993129,2cyclictest32695-21cat20:45:111
24202993029,1cyclictest809-21snmpd21:59:523
24202993029,1cyclictest809-21snmpd20:53:493
24202993028,2cyclictest809-21snmpd20:15:313
24201993030,0cyclictest12691-21kworker/2:2+events23:45:462
24201993029,1cyclictest816-21lldpd21:57:272
24201993029,1cyclictest816-21lldpd20:37:282
24201993029,1cyclictest809-21snmpd23:07:202
24201993029,1cyclictest809-21snmpd19:51:022
24201993029,1cyclictest809-21snmpd19:32:482
24201993029,1cyclictest809-21snmpd19:32:472
24201993029,1cyclictest809-21snmpd00:22:382
24201993029,1cyclictest809-21snmpd00:15:132
24201993028,2cyclictest809-21snmpd23:01:062
24201993028,2cyclictest809-21snmpd22:18:242
24201993027,2cyclictest809-21snmpd19:21:052
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24200993029,1cyclictest809-21snmpd23:32:041
24200993029,1cyclictest809-21snmpd22:41:411
24200993029,1cyclictest809-21snmpd22:33:561
24200993029,1cyclictest809-21snmpd22:23:431
24200993029,1cyclictest809-21snmpd20:25:271
24200993029,1cyclictest809-21snmpd19:36:361
24200993029,1cyclictest809-21snmpd00:26:491
24200993028,2cyclictest809-21snmpd19:33:241
24200993028,2cyclictest809-21snmpd19:33:231
24199993029,1cyclictest809-21snmpd21:21:440
24199993027,2cyclictest809-21snmpd00:07:370
24202992928,1cyclictest809-21snmpd23:47:483
24202992928,1cyclictest809-21snmpd23:38:483
24202992928,1cyclictest809-21snmpd21:15:023
24202992927,2cyclictest32435-21cat23:10:143
24202992926,2cyclictest809-21snmpd22:46:023
24201992929,0cyclictest21994-21kworker/2:4+events00:03:132
24201992929,0cyclictest19719-21kworker/2:1+events21:17:332
24201992929,0cyclictest19719-21kworker/2:1+events20:27:032
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24201992929,0cyclictest11113-21kworker/2:0+events20:03:342
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24201992828,0cyclictest3398-21kworker/2:1+events23:53:232
24201992828,0cyclictest20293-21kworker/2:2+events21:48:062
24201992826,2cyclictest809-21snmpd00:14:022
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24200992827,1cyclictest809-21snmpd22:01:551
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24199992827,1cyclictest809-21snmpd23:05:080
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24201992626,0cyclictest12691-21kworker/2:2+events00:30:132
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24202992524,1cyclictest809-21snmpd00:35:413
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24200992424,0cyclictest74850irq/132-enp1s023:05:301
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24199992120,1cyclictest809-21snmpd19:44:270
24199992119,2cyclictest24880-21cat19:10:220
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24200992019,1cyclictest809-21snmpd00:07:131
24200991818,0cyclictest23926-21kworker/u16:0+atlantic21:47:241
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241999965,1cyclictest6786-21sed22:15:210
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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