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2026-09-12 - 13:55

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 Sat Sep 12, 2026 00:43:54)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
59532317311,4sleep20-21swapper/219:06:452
58812316308,5sleep30-21swapper/319:05:503
59402315300,5sleep00-21swapper/019:06:350
43682315307,5sleep10-21swapper/119:05:081
6470993010,300cyclictest25359-21kworker/u16:1+efi_rts_wq00:25:130
6473993000,298cyclictest31673-21kworker/u16:0+efi_rts_wq22:34:463
6471993000,299cyclictest8836-21kworker/u16:0+efi_rts_wq23:09:531
6470992990,298cyclictest31673-21kworker/u16:0+efi_rts_wq20:00:130
6473992970,295cyclictest25359-21kworker/u16:1+efi_rts_wq23:45:143
6470992940,293cyclictest31673-21kworker/u16:0+efi_rts_wq20:55:130
6472992920,291cyclictest31673-21kworker/u16:0+efi_rts_wq21:15:132
6470992920,291cyclictest5947-21kworker/u16:3+efi_rts_wq22:05:140
6470992920,290cyclictest25359-21kworker/u16:1+efi_rts_wq00:35:130
6470992910,290cyclictest31673-21kworker/u16:0+efi_rts_wq19:20:150
6473992880,287cyclictest25359-21kworker/u16:1+efi_rts_wq23:35:123
6471992880,287cyclictest31673-21kworker/u16:0+efi_rts_wq19:50:101
6472992860,285cyclictest31673-21kworker/u16:0+efi_rts_wq21:30:102
6473992850,284cyclictest25359-21kworker/u16:1+efi_rts_wq00:10:113
6470992840,283cyclictest31673-21kworker/u16:0+efi_rts_wq22:00:140
6470992830,282cyclictest28318-21kworker/u16:2+efi_rts_wq23:40:140
6473992820,281cyclictest5947-21kworker/u16:3+efi_rts_wq20:35:133
6470992800,277cyclictest31673-21kworker/u16:0+efi_rts_wq22:20:130
6473992780,277cyclictest5947-21kworker/u16:3+efi_rts_wq21:20:113
6473992770,274cyclictest28318-21kworker/u16:2+efi_rts_wq22:50:113
6472992760,275cyclictest31673-21kworker/u16:0+efi_rts_wq21:45:132
6470992750,274cyclictest25359-21kworker/u16:1+efi_rts_wq23:34:580
6472992740,273cyclictest31673-21kworker/u16:0+efi_rts_wq22:30:122
6472992740,273cyclictest31673-21kworker/u16:0+efi_rts_wq20:55:132
6471992720,271cyclictest31673-21kworker/u16:0+efi_rts_wq19:35:131
6470992700,269cyclictest25359-21kworker/u16:1+efi_rts_wq23:55:120
6473992670,266cyclictest31673-21kworker/u16:0+efi_rts_wq20:40:123
6471992670,266cyclictest31673-21kworker/u16:0+efi_rts_wq22:10:121
6471992670,266cyclictest28318-21kworker/u16:2+efi_rts_wq23:24:561
6470992660,265cyclictest28318-21kworker/u16:2+efi_rts_wq00:06:050
6470992650,263cyclictest31673-21kworker/u16:0+efi_rts_wq21:25:150
6473992630,262cyclictest8836-21kworker/u16:0+efi_rts_wq23:05:123
6471992630,261cyclictest28318-21kworker/u16:2+efi_rts_wq23:40:141
6470992630,262cyclictest5947-21kworker/u16:3+efi_rts_wq20:50:120
6472992620,260cyclictest8836-21kworker/u16:0+efi_rts_wq23:14:542
6471992620,261cyclictest28318-21kworker/u16:2+efi_rts_wq22:50:111
6473992600,259cyclictest5947-21kworker/u16:3+efi_rts_wq22:19:433
6472992600,259cyclictest31673-21kworker/u16:0+efi_rts_wq20:25:132
6471992600,259cyclictest28318-21kworker/u16:2+efi_rts_wq00:30:111
6470992600,259cyclictest5947-21kworker/u16:3+efi_rts_wq19:10:130
6472992580,257cyclictest25359-21kworker/u16:1+efi_rts_wq00:21:082
6470992570,256cyclictest31673-21kworker/u16:0+efi_rts_wq21:15:130
6472992560,255cyclictest5947-21kworker/u16:3+efi_rts_wq19:55:122
6472992550,254cyclictest31673-21kworker/u16:0+efi_rts_wq22:00:142
6470992550,254cyclictest28318-21kworker/u16:2+efi_rts_wq22:45:110
6470992550,254cyclictest28318-21kworker/u16:2+efi_rts_wq00:15:120
6472992540,253cyclictest31673-21kworker/u16:0+efi_rts_wq21:25:152
6471992530,252cyclictest28318-21kworker/u16:2+efi_rts_wq22:35:131
6473992510,250cyclictest28318-21kworker/u16:2+efi_rts_wq00:05:123
6470992510,250cyclictest31673-21kworker/u16:0+efi_rts_wq21:55:130
6470992510,250cyclictest25359-21kworker/u16:1+efi_rts_wq00:10:110
6472992490,248cyclictest31673-21kworker/u16:0+efi_rts_wq21:10:122
6472992490,248cyclictest28318-21kworker/u16:2+efi_rts_wq23:30:122
6470992480,247cyclictest5947-21kworker/u16:3+efi_rts_wq21:05:120
6470992470,244cyclictest5947-21kworker/u16:3+efi_rts_wq20:20:120
6473992460,245cyclictest25359-21kworker/u16:1+efi_rts_wq23:50:103
6473992460,245cyclictest25359-21kworker/u16:1+efi_rts_wq23:50:103
6473992460,244cyclictest1145-21kworker/u16:3+efi_rts_wq22:55:133
6471992460,245cyclictest5947-21kworker/u16:3+efi_rts_wq22:29:451
6472992450,243cyclictest28318-21kworker/u16:2+efi_rts_wq23:15:122
6471992440,243cyclictest25359-21kworker/u16:1+efi_rts_wq00:20:121
6470992440,243cyclictest5947-21kworker/u16:3+efi_rts_wq21:20:110
6472992430,240cyclictest28318-21kworker/u16:2+efi_rts_wq22:35:132
6470992420,240cyclictest31673-21kworker/u16:0+efi_rts_wq19:25:120
6473992410,240cyclictest14091-21kworker/u16:3+efi_rts_wq23:25:123
6472992400,239cyclictest31673-21kworker/u16:0+efi_rts_wq19:45:122
6472992400,239cyclictest28318-21kworker/u16:2+efi_rts_wq22:45:122
6471992390,238cyclictest31673-21kworker/u16:0+efi_rts_wq20:10:121
6470992390,238cyclictest5947-21kworker/u16:3+efi_rts_wq20:35:130
6473992380,237cyclictest31673-21kworker/u16:0+efi_rts_wq21:55:133
6470992380,237cyclictest28318-21kworker/u16:2+efi_rts_wq23:51:020
6470992380,237cyclictest28318-21kworker/u16:2+efi_rts_wq23:51:020
6470992370,236cyclictest31673-21kworker/u16:0+efi_rts_wq19:35:130
6473992350,234cyclictest5947-21kworker/u16:3+efi_rts_wq22:05:143
6473992350,234cyclictest1145-21kworker/u16:3+efi_rts_wq23:00:123
6472992350,234cyclictest5947-21kworker/u16:3+efi_rts_wq22:25:132
6472992330,232cyclictest5947-21kworker/u16:3+efi_rts_wq20:05:142
6472992310,230cyclictest5947-21kworker/u16:3+efi_rts_wq19:15:002
6471992290,228cyclictest5947-21kworker/u16:3+efi_rts_wq20:05:141
6470992290,228cyclictest31673-21kworker/u16:0+efi_rts_wq19:30:130
6470992290,227cyclictest1145-21kworker/u16:3+efi_rts_wq22:55:130
6473992280,227cyclictest5947-21kworker/u16:3+efi_rts_wq19:29:093
6473992280,227cyclictest31673-21kworker/u16:0+efi_rts_wq21:35:143
6472992250,224cyclictest25359-21kworker/u16:1+efi_rts_wq23:45:152
6472992250,224cyclictest25359-21kworker/u16:1+efi_rts_wq23:45:002
6473992240,223cyclictest28318-21kworker/u16:2+efi_rts_wq00:31:113
6471992230,222cyclictest5947-21kworker/u16:3+efi_rts_wq21:04:291
6471992220,221cyclictest5947-21kworker/u16:3+efi_rts_wq20:30:121
6472992210,220cyclictest28318-21kworker/u16:2+efi_rts_wq00:00:112
6470992170,216cyclictest5947-21kworker/u16:3+efi_rts_wq19:49:140
6471992160,215cyclictest31673-21kworker/u16:0+efi_rts_wq20:59:281
6471992150,212cyclictest1145-21kworker/u16:3+efi_rts_wq23:00:121
6470992140,213cyclictest5947-21kworker/u16:3+efi_rts_wq21:40:120
6472992130,212cyclictest25359-21kworker/u16:1+efi_rts_wq00:35:132
6471992120,209cyclictest31673-21kworker/u16:0+efi_rts_wq22:40:131
6473992110,210cyclictest5947-21kworker/u16:3+efi_rts_wq21:05:123
6472992100,209cyclictest14091-21kworker/u16:3+efi_rts_wq23:20:112
6471992080,207cyclictest5947-21kworker/u16:3+efi_rts_wq20:20:121
6470992080,207cyclictest31673-21kworker/u16:0+efi_rts_wq21:49:370
6470992060,205cyclictest31673-21kworker/u16:0+efi_rts_wq20:25:130
6472992050,204cyclictest31673-21kworker/u16:0+efi_rts_wq20:04:162
6473992040,203cyclictest5947-21kworker/u16:3+efi_rts_wq20:54:263
6473992030,202cyclictest31673-21kworker/u16:0+efi_rts_wq22:40:133
6470992010,200cyclictest25359-21kworker/u16:1+efi_rts_wq00:01:040
6473992000,199cyclictest31673-21kworker/u16:0+efi_rts_wq19:45:123
6472991990,198cyclictest25359-21kworker/u16:1+efi_rts_wq23:50:102
6472991990,198cyclictest25359-21kworker/u16:1+efi_rts_wq23:50:102
6473991980,197cyclictest5947-21kworker/u16:3+efi_rts_wq21:40:113
6473991970,196cyclictest31673-21kworker/u16:0+efi_rts_wq21:19:323
6471991970,196cyclictest5947-21kworker/u16:3+efi_rts_wq19:15:131
6473991940,193cyclictest31673-21kworker/u16:0+efi_rts_wq20:29:223
6473991930,192cyclictest31673-21kworker/u16:0+efi_rts_wq21:10:143
6471991910,190cyclictest5947-21kworker/u16:3+efi_rts_wq21:24:331
6470991910,190cyclictest5947-21kworker/u16:3+efi_rts_wq19:40:120
6471991890,188cyclictest5947-21kworker/u16:3+efi_rts_wq21:50:121
6473991850,184cyclictest5947-21kworker/u16:3+efi_rts_wq20:19:203
6473991830,182cyclictest5947-21kworker/u16:3+efi_rts_wq21:54:383
6473991820,180cyclictest28318-21kworker/u16:2+efi_rts_wq22:39:473
6473991770,176cyclictest31673-21kworker/u16:0+efi_rts_wq19:30:133
6473991760,175cyclictest5947-21kworker/u16:3+efi_rts_wq19:55:123
6472991760,175cyclictest5947-21kworker/u16:3+efi_rts_wq21:00:122
6473991720,171cyclictest25359-21kworker/u16:1+efi_rts_wq00:25:123
6473991700,169cyclictest31673-21kworker/u16:0+efi_rts_wq20:45:133
6473991680,167cyclictest28318-21kworker/u16:2+efi_rts_wq00:00:123
6470991610,159cyclictest28318-21kworker/u16:2+efi_rts_wq23:15:130
6473991600,159cyclictest31673-21kworker/u16:0+efi_rts_wq20:14:183
6471991600,159cyclictest31673-21kworker/u16:0+efi_rts_wq21:44:361
6470991600,159cyclictest31673-21kworker/u16:0+efi_rts_wq21:14:310
6471991580,157cyclictest28318-21kworker/u16:2+efi_rts_wq00:00:121
6470991580,157cyclictest5947-21kworker/u16:3+efi_rts_wq20:15:110
6470991570,156cyclictest5947-21kworker/u16:3+efi_rts_wq21:50:120
6470991560,155cyclictest14091-21kworker/u16:3+efi_rts_wq23:29:570
6471991510,150cyclictest31673-21kworker/u16:0+efi_rts_wq20:49:251
6470991510,150cyclictest28318-21kworker/u16:2+efi_rts_wq00:30:110
6472991500,149cyclictest28318-21kworker/u16:2+efi_rts_wq00:16:072
6472991490,148cyclictest5947-21kworker/u16:3+efi_rts_wq20:15:112
6473991480,147cyclictest5947-21kworker/u16:3+efi_rts_wq19:19:073
6472991440,143cyclictest25359-21kworker/u16:1+efi_rts_wq23:55:122
6470991430,142cyclictest31673-21kworker/u16:0+efi_rts_wq19:54:150
6473991420,141cyclictest14091-21kworker/u16:3+efi_rts_wq23:19:553
6471991400,139cyclictest28318-21kworker/u16:2+efi_rts_wq22:59:511
6473991370,135cyclictest28318-21kworker/u16:2+efi_rts_wq23:10:143
6473991330,132cyclictest5947-21kworker/u16:3+efi_rts_wq19:44:133
6471991300,129cyclictest25359-21kworker/u16:1+efi_rts_wq23:35:101
6470991290,128cyclictest31673-21kworker/u16:0+efi_rts_wq22:30:130
6470991200,119cyclictest31673-21kworker/u16:0+efi_rts_wq21:39:350
6470991140,113cyclictest31673-21kworker/u16:0+efi_rts_wq22:14:420
6470991130,112cyclictest31673-21kworker/u16:0+efi_rts_wq20:45:130
6470991110,110cyclictest5947-21kworker/u16:3+efi_rts_wq19:59:150
6470991070,107cyclictest31673-21kworker/u16:0+efi_rts_wq20:44:250
6473993531,2cyclictest809-21snmpd23:22:283
6473993429,4cyclictest809-21snmpd19:54:313
6473993229,3cyclictest809-21snmpd22:10:433
6473993228,4cyclictest809-21snmpd22:29:473
6473993227,4cyclictest809-21snmpd20:33:293
6472993230,2cyclictest813-21ntpd22:58:542
6471993230,2cyclictest809-21snmpd20:29:351
6471993230,2cyclictest809-21snmpd00:35:451
6470993229,2cyclictest809-21snmpd19:18:190
6470993229,2cyclictest809-21snmpd00:20:450
6473993129,2cyclictest809-21snmpd23:32:343
6473993127,4cyclictest809-21snmpd20:01:053
6472993130,1cyclictest809-21snmpd22:41:032
6472993130,1cyclictest809-21snmpd19:35:462
6472993128,2cyclictest809-21snmpd21:52:182
6471993129,2cyclictest809-21snmpd22:06:141
6470993129,2cyclictest809-21snmpd22:43:180
6470993128,2cyclictest809-21snmpd22:38:350
6470993128,2cyclictest809-21snmpd22:18:590
6473993029,1cyclictest809-21snmpd22:49:003
6473993029,1cyclictest809-21snmpd20:57:453
6473993027,2cyclictest809-21snmpd23:55:353
6473993027,2cyclictest809-21snmpd20:08:593
6472993030,0cyclictest809-21snmpd00:07:572
6472993029,1cyclictest809-21snmpd20:22:442
6472993029,1cyclictest809-21snmpd20:13:232
6472993029,1cyclictest6036-21kworker/2:2+events23:06:172
6472993029,1cyclictest6036-21kworker/2:2+events22:53:132
6472993028,2cyclictest809-21snmpd21:05:182
6472993028,2cyclictest809-21snmpd20:46:292
6471993029,1cyclictest809-21snmpd23:56:141
6471993029,1cyclictest809-21snmpd23:14:281
6471993029,1cyclictest809-21snmpd21:45:371
6471993029,1cyclictest809-21snmpd21:08:001
6471993029,1cyclictest809-21snmpd19:46:041
6471993028,2cyclictest809-21snmpd20:37:501
6470993029,1cyclictest809-21snmpd23:12:520
6470993029,1cyclictest809-21snmpd20:30:380
6470993029,1cyclictest809-21snmpd20:06:590
6470993028,2cyclictest809-21snmpd23:01:450
6473992928,1cyclictest809-21snmpd23:44:233
6473992927,1cyclictest809-21snmpd21:31:073
6473992926,2cyclictest809-21snmpd22:02:083
6472992929,0cyclictest6036-21kworker/2:2+events23:36:492
6472992929,0cyclictest6036-21kworker/2:2+events23:25:012
6472992929,0cyclictest6036-21kworker/2:2+events23:03:132
6472992929,0cyclictest17782-21kworker/2:2+events21:43:032
6472992928,1cyclictest809-21snmpd22:21:502
6472992928,1cyclictest809-21snmpd20:53:212
6472992928,1cyclictest809-21snmpd00:10:262
6472992927,2cyclictest809-21snmpd21:37:102
6471992928,1cyclictest809-21snmpd22:48:031
6471992928,1cyclictest809-21snmpd22:02:141
6471992928,1cyclictest809-21snmpd21:39:401
6471992928,1cyclictest809-21snmpd00:25:541
6471992926,2cyclictest809-21snmpd21:28:011
6470992927,2cyclictest809-21snmpd22:51:120
6473992827,1cyclictest809-21snmpd21:27:133
6473992827,1cyclictest809-21snmpd19:35:043
6472992827,1cyclictest809-21snmpd19:51:072
6472992826,2cyclictest809-21snmpd22:15:502
6472992826,2cyclictest809-21snmpd19:40:282
6471992828,0cyclictest5947-21kworker/u16:3+atlantic19:13:011
6471992828,0cyclictest31673-21kworker/u16:0+atlantic19:25:051
6471992827,1cyclictest809-21snmpd20:44:171
6471992827,1cyclictest809-21snmpd00:06:261
6471992827,1cyclictest12190-21cat19:20:171
6471992826,2cyclictest809-21snmpd23:31:071
6471992826,2cyclictest809-21snmpd19:56:551
6470992827,1cyclictest809-21snmpd23:46:140
6473992726,1cyclictest809-21snmpd21:47:253
6473992724,2cyclictest809-21snmpd22:20:383
6472992727,0cyclictest6737-21kworker/2:1+events00:33:012
6472992727,0cyclictest4070-21kworker/2:0+events20:34:052
6472992726,1cyclictest809-21snmpd19:29:492
6472992726,1cyclictest809-21snmpd19:14:402
6471992726,1cyclictest809-21snmpd21:12:421
6471992726,1cyclictest809-21snmpd20:51:111
6471992724,3cyclictest809-21snmpd23:53:351
6471992724,3cyclictest809-21snmpd23:53:351
6470992726,1cyclictest809-21snmpd20:10:520
6473992624,2cyclictest809-21snmpd00:35:573
6472992626,0cyclictest17782-21kworker/2:2+events21:23:092
6472992625,1cyclictest809-21snmpd19:30:552
6472992625,1cyclictest809-21snmpd00:25:152
6471992626,0cyclictest809-21snmpd23:16:581
6471992625,1cyclictest809-21snmpd22:17:351
6471992625,1cyclictest809-21snmpd21:58:521
6472992525,0cyclictest17782-21kworker/2:2+events22:10:052
6471992524,1cyclictest809-21snmpd22:30:141
6471992523,2cyclictest809-21snmpd23:49:131
6470992524,1cyclictest809-21snmpd23:37:380
6473992422,2cyclictest809-21snmpd19:24:013
6472992424,0cyclictest17782-21kworker/2:2+events22:05:052
6471992423,1cyclictest809-21snmpd21:17:361
6470992423,1cyclictest809-21snmpd21:33:130
6472992322,1cyclictest809-21snmpd20:43:292
6471992322,1cyclictest809-21snmpd21:30:551
6471992321,2cyclictest809-21snmpd23:26:421
6470992322,1cyclictest809-21snmpd23:05:420
6470992321,2cyclictest809-21snmpd23:23:280
6473992220,2cyclictest809-21snmpd19:10:433
6472992221,1cyclictest4070-21kworker/2:0+events20:36:592
6472992221,1cyclictest17782-21kworker/2:2+events21:55:032
6472992221,1cyclictest17782-21kworker/2:2+events19:20:472
6471992220,2cyclictest809-21snmpd22:21:261
6473992120,1cyclictest809-21snmpd21:02:423
6473992018,2cyclictest4944-21cat20:20:153
6470991817,1cyclictest21486-21cat21:00:140
6471991716,1cyclictest809-21snmpd00:16:241
6471991715,2cyclictest809-21snmpd20:19:531
6470991717,0cyclictest5947-21kworker/u16:3+atlantic22:25:010
6473991210,2cyclictest809-21snmpd00:15:123
64719999,0cyclictest809-21snmpd19:40:041
64739965,1cyclictest15107-21taskset00:21:183
64719965,1cyclictest17457-21seq19:34:251
64719965,1cyclictest10835-21grep00:10:191
64719954,1cyclictest29085-21cut20:00:151
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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