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2026-03-30 - 03:53

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 376 highest latencies:
System rackcslot3s.osadl.org (updated Mon Mar 30, 2026 00:43:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
131392331310,4sleep10-21swapper/119:07:291
132882327319,5sleep30-21swapper/319:09:233
130062321314,4sleep20-21swapper/219:05:452
13717993160,313cyclictest25995-21kworker/u16:0+efi_rts_wq21:00:141
13715993150,314cyclictest7277-21kworker/u16:2+efi_rts_wq23:10:120
132472314306,5sleep00-21swapper/019:08:510
13717993130,312cyclictest25551-21kworker/u16:1+efi_rts_wq00:10:141
13715993120,311cyclictest7277-21kworker/u16:2+efi_rts_wq23:35:120
13715993120,311cyclictest19120-21kworker/u16:3+efi_rts_wq00:05:130
13720993110,310cyclictest19120-21kworker/u16:3+efi_rts_wq00:31:153
13720993110,310cyclictest19120-21kworker/u16:3+efi_rts_wq00:05:133
13717993110,310cyclictest20423-21kworker/u16:0+efi_rts_wq21:59:441
13717993100,309cyclictest25995-21kworker/u16:0+efi_rts_wq19:10:121
13720993080,306cyclictest25995-21kworker/u16:0+efi_rts_wq20:05:123
13717993070,306cyclictest10985-21kworker/u16:1+efi_rts_wq19:24:141
13715993070,306cyclictest7277-21kworker/u16:2+efi_rts_wq21:40:120
13720993060,305cyclictest7277-21kworker/u16:2+efi_rts_wq23:00:103
13715993060,305cyclictest7277-21kworker/u16:2+efi_rts_wq21:39:390
13717993050,304cyclictest20423-21kworker/u16:0+efi_rts_wq22:15:141
13715993050,304cyclictest7277-21kworker/u16:2+efi_rts_wq21:50:130
13715993050,304cyclictest25995-21kworker/u16:0+efi_rts_wq20:40:120
13717993040,303cyclictest25995-21kworker/u16:0+efi_rts_wq20:45:131
13720993030,302cyclictest7277-21kworker/u16:2+efi_rts_wq22:40:123
13720993030,302cyclictest20423-21kworker/u16:0+efi_rts_wq22:45:133
13720993030,302cyclictest10985-21kworker/u16:1+efi_rts_wq19:35:133
13720993020,301cyclictest7277-21kworker/u16:2+efi_rts_wq21:55:143
13717993020,301cyclictest25551-21kworker/u16:1+efi_rts_wq23:50:131
13719993010,300cyclictest25995-21kworker/u16:0+efi_rts_wq20:40:112
13720993000,299cyclictest25995-21kworker/u16:0+efi_rts_wq20:55:133
13719993000,299cyclictest20423-21kworker/u16:0+efi_rts_wq22:50:122
13720992990,298cyclictest19120-21kworker/u16:3+efi_rts_wq23:51:073
13717992990,298cyclictest25551-21kworker/u16:1+efi_rts_wq00:00:121
13715992980,297cyclictest7277-21kworker/u16:2+efi_rts_wq22:30:140
13715992980,297cyclictest7277-21kworker/u16:2+efi_rts_wq22:30:130
13715992980,297cyclictest25551-21kworker/u16:1+efi_rts_wq23:40:130
13719992970,296cyclictest25995-21kworker/u16:0+efi_rts_wq19:25:152
13717992970,296cyclictest25995-21kworker/u16:0+efi_rts_wq19:15:011
13720992950,294cyclictest10985-21kworker/u16:1+efi_rts_wq19:40:143
13717992950,294cyclictest25995-21kworker/u16:0+efi_rts_wq20:24:251
13719992940,293cyclictest7277-21kworker/u16:2+efi_rts_wq22:00:122
13719992940,293cyclictest10985-21kworker/u16:1+efi_rts_wq20:35:132
13717992930,292cyclictest25995-21kworker/u16:0+efi_rts_wq20:00:131
13717992920,290cyclictest7277-21kworker/u16:2+efi_rts_wq23:05:121
13717992900,289cyclictest7277-21kworker/u16:2+efi_rts_wq23:30:131
13719992890,288cyclictest7277-21kworker/u16:2+efi_rts_wq22:40:132
13715992880,287cyclictest10985-21kworker/u16:1+efi_rts_wq19:30:100
13720992850,284cyclictest25551-21kworker/u16:1+efi_rts_wq00:01:103
13715992850,284cyclictest7277-21kworker/u16:2+efi_rts_wq21:34:380
13715992830,282cyclictest10985-21kworker/u16:1+efi_rts_wq20:59:310
13720992820,281cyclictest7277-21kworker/u16:2+efi_rts_wq23:14:583
13720992810,280cyclictest7277-21kworker/u16:2+efi_rts_wq23:45:123
13720992810,280cyclictest25995-21kworker/u16:0+efi_rts_wq21:25:173
13717992810,280cyclictest20280-21kworker/u16:3+efi_rts_wq22:55:101
13717992810,280cyclictest10985-21kworker/u16:1+efi_rts_wq19:50:121
13720992790,277cyclictest10985-21kworker/u16:1+efi_rts_wq19:45:143
13715992770,276cyclictest19120-21kworker/u16:3+efi_rts_wq00:26:140
13717992760,273cyclictest7277-21kworker/u16:2+efi_rts_wq23:10:121
13715992760,275cyclictest25995-21kworker/u16:0+efi_rts_wq19:44:160
13715992750,274cyclictest25995-21kworker/u16:0+efi_rts_wq21:09:330
13719992740,273cyclictest10985-21kworker/u16:1+efi_rts_wq19:55:112
13720992720,271cyclictest25995-21kworker/u16:0+efi_rts_wq21:05:143
13717992720,271cyclictest10985-21kworker/u16:1+efi_rts_wq20:29:271
13720992710,269cyclictest25995-21kworker/u16:0+efi_rts_wq20:30:133
13719992710,270cyclictest7277-21kworker/u16:2+efi_rts_wq23:20:132
13719992700,269cyclictest25551-21kworker/u16:1+efi_rts_wq00:10:142
13715992700,269cyclictest25551-21kworker/u16:1+efi_rts_wq23:50:130
13719992690,268cyclictest25995-21kworker/u16:0+efi_rts_wq21:19:362
13717992690,268cyclictest10985-21kworker/u16:1+efi_rts_wq20:09:231
13715992650,264cyclictest25995-21kworker/u16:0+efi_rts_wq21:20:120
13717992640,263cyclictest25995-21kworker/u16:0+efi_rts_wq20:50:121
13715992630,262cyclictest19120-21kworker/u16:3+efi_rts_wq00:00:120
13715992620,260cyclictest7277-21kworker/u16:2+efi_rts_wq23:20:130
13720992610,260cyclictest7277-21kworker/u16:2+efi_rts_wq23:35:123
13720992570,256cyclictest25995-21kworker/u16:0+efi_rts_wq19:29:153
13715992560,255cyclictest10985-21kworker/u16:1+efi_rts_wq20:25:110
13715992550,254cyclictest25551-21kworker/u16:1+efi_rts_wq23:19:590
13715992530,252cyclictest25551-21kworker/u16:1+efi_rts_wq23:25:120
13720992520,250cyclictest7277-21kworker/u16:2+efi_rts_wq21:35:123
13717992520,251cyclictest7277-21kworker/u16:2+efi_rts_wq22:30:141
13717992520,251cyclictest7277-21kworker/u16:2+efi_rts_wq22:30:131
13720992510,250cyclictest25551-21kworker/u16:1+efi_rts_wq23:30:013
13715992510,250cyclictest25995-21kworker/u16:0+efi_rts_wq20:00:130
13720992490,248cyclictest7277-21kworker/u16:2+efi_rts_wq22:30:133
13720992490,248cyclictest7277-21kworker/u16:2+efi_rts_wq22:30:133
13719992490,248cyclictest25995-21kworker/u16:0+efi_rts_wq19:15:142
13715992490,248cyclictest20423-21kworker/u16:0+efi_rts_wq22:10:120
13720992470,246cyclictest20423-21kworker/u16:0+efi_rts_wq22:50:103
13717992470,246cyclictest20423-21kworker/u16:0+efi_rts_wq21:45:131
13715992470,246cyclictest10985-21kworker/u16:1+efi_rts_wq20:15:130
13715992450,244cyclictest10985-21kworker/u16:1+efi_rts_wq20:45:110
13720992420,241cyclictest25551-21kworker/u16:1+efi_rts_wq00:25:113
13720992420,241cyclictest19120-21kworker/u16:3+efi_rts_wq00:35:123
13720992400,238cyclictest7277-21kworker/u16:2+efi_rts_wq22:05:133
13717992390,238cyclictest10985-21kworker/u16:1+efi_rts_wq20:10:131
13715992380,237cyclictest25551-21kworker/u16:1+efi_rts_wq23:46:060
13717992370,236cyclictest25551-21kworker/u16:1+efi_rts_wq23:55:121
13717992370,236cyclictest10985-21kworker/u16:1+efi_rts_wq19:34:141
13715992360,235cyclictest20423-21kworker/u16:0+efi_rts_wq22:20:120
13719992350,233cyclictest7277-21kworker/u16:2+efi_rts_wq22:59:552
13715992340,233cyclictest20280-21kworker/u16:3+efi_rts_wq22:55:100
13715992300,227cyclictest19120-21kworker/u16:3+efi_rts_wq00:30:130
13720992290,228cyclictest7277-21kworker/u16:2+efi_rts_wq22:24:483
13720992290,228cyclictest25551-21kworker/u16:1+efi_rts_wq23:25:123
13719992290,228cyclictest25995-21kworker/u16:0+efi_rts_wq20:50:122
13719992290,228cyclictest25551-21kworker/u16:1+efi_rts_wq00:15:132
13715992290,228cyclictest10985-21kworker/u16:1+efi_rts_wq19:19:140
13715992260,225cyclictest25995-21kworker/u16:0+efi_rts_wq21:00:140
13719992250,224cyclictest7277-21kworker/u16:2+efi_rts_wq23:45:122
13719992250,223cyclictest7277-21kworker/u16:2+efi_rts_wq23:30:132
13720992240,223cyclictest25995-21kworker/u16:0+efi_rts_wq19:15:143
13715992240,223cyclictest7277-21kworker/u16:2+efi_rts_wq22:29:500
13720992220,221cyclictest20423-21kworker/u16:0+efi_rts_wq22:14:463
13715992220,221cyclictest7277-21kworker/u16:2+efi_rts_wq22:35:120
13715992200,219cyclictest20280-21kworker/u16:3+efi_rts_wq22:54:550
13717992190,218cyclictest19120-21kworker/u16:3+efi_rts_wq00:35:131
13719992160,215cyclictest20423-21kworker/u16:0+efi_rts_wq22:45:132
13717992160,215cyclictest25995-21kworker/u16:0+efi_rts_wq21:20:121
13719992130,212cyclictest25551-21kworker/u16:1+efi_rts_wq23:50:132
13719992100,209cyclictest7277-21kworker/u16:2+efi_rts_wq22:25:132
13717992090,208cyclictest7277-21kworker/u16:2+efi_rts_wq21:40:121
13717992080,207cyclictest25995-21kworker/u16:0+efi_rts_wq19:59:211
13719992060,205cyclictest25995-21kworker/u16:0+efi_rts_wq21:25:172
13720992050,204cyclictest10985-21kworker/u16:1+efi_rts_wq20:49:303
13720992020,201cyclictest10985-21kworker/u16:1+efi_rts_wq19:20:123
13719992020,201cyclictest10985-21kworker/u16:1+efi_rts_wq21:10:122
13715992020,200cyclictest7277-21kworker/u16:2+efi_rts_wq23:05:110
13715992010,200cyclictest25995-21kworker/u16:0+efi_rts_wq19:39:150
13720992000,199cyclictest25551-21kworker/u16:1+efi_rts_wq00:21:153
13720991970,196cyclictest25551-21kworker/u16:1+efi_rts_wq00:15:133
13719991930,192cyclictest7277-21kworker/u16:2+efi_rts_wq23:10:122
13717991930,192cyclictest10985-21kworker/u16:1+efi_rts_wq20:19:251
13715991910,190cyclictest25551-21kworker/u16:1+efi_rts_wq00:20:120
13720991900,189cyclictest15045-21kworker/u16:3+efi_rts_wq21:30:123
13719991890,188cyclictest10985-21kworker/u16:1+efi_rts_wq19:35:132
13720991880,187cyclictest10985-21kworker/u16:1+efi_rts_wq19:54:183
13719991860,185cyclictest25551-21kworker/u16:1+efi_rts_wq23:25:002
13719991830,182cyclictest10985-21kworker/u16:1+efi_rts_wq19:50:112
13720991820,181cyclictest7277-21kworker/u16:2+efi_rts_wq23:15:123
13715991770,176cyclictest25995-21kworker/u16:0+efi_rts_wq20:20:120
13715991740,173cyclictest25995-21kworker/u16:0+efi_rts_wq21:15:140
13720991730,172cyclictest10985-21kworker/u16:1+efi_rts_wq19:55:123
13717991700,169cyclictest20423-21kworker/u16:0+efi_rts_wq22:04:441
13717991690,168cyclictest25995-21kworker/u16:0+efi_rts_wq21:05:141
13720991680,167cyclictest25995-21kworker/u16:0+efi_rts_wq21:24:363
13717991670,166cyclictest20423-21kworker/u16:0+efi_rts_wq22:20:121
13717991640,163cyclictest15045-21kworker/u16:3+efi_rts_wq21:30:121
13717991600,159cyclictest25995-21kworker/u16:0+efi_rts_wq21:15:151
13717991600,158cyclictest7277-21kworker/u16:2+efi_rts_wq21:50:121
13719991580,155cyclictest20423-21kworker/u16:0+efi_rts_wq21:45:132
13715991570,156cyclictest10985-21kworker/u16:1+efi_rts_wq21:14:340
13715991560,155cyclictest25995-21kworker/u16:0+efi_rts_wq20:30:130
13715991560,155cyclictest25995-21kworker/u16:0+efi_rts_wq20:14:230
13717991480,147cyclictest7277-21kworker/u16:2+efi_rts_wq22:25:131
13717991480,147cyclictest20423-21kworker/u16:0+efi_rts_wq22:10:121
13720991460,145cyclictest7277-21kworker/u16:2+efi_rts_wq22:35:123
13717991420,141cyclictest7277-21kworker/u16:2+efi_rts_wq22:09:461
13720991370,136cyclictest7277-21kworker/u16:2+efi_rts_wq22:00:123
13715991330,132cyclictest7277-21kworker/u16:2+efi_rts_wq21:49:410
13720991280,127cyclictest19120-21kworker/u16:3+efi_rts_wq23:55:123
13719991280,127cyclictest7277-21kworker/u16:2+efi_rts_wq22:15:142
13715991250,124cyclictest25995-21kworker/u16:0+efi_rts_wq20:39:280
13720991220,121cyclictest7277-21kworker/u16:2+efi_rts_wq21:54:413
13719991220,121cyclictest10985-21kworker/u16:1+efi_rts_wq19:49:182
13719991210,120cyclictest10985-21kworker/u16:1+efi_rts_wq19:40:142
13717991210,121cyclictest10985-21kworker/u16:1+efi_rts_wq21:29:381
13719993329,4cyclictest818-21snmpd22:34:362
13719993329,4cyclictest818-21snmpd22:34:352
13717993329,3cyclictest818-21snmpd00:25:171
13720993230,2cyclictest818-21snmpd21:48:323
13720993230,1cyclictest24662-21cat19:30:123
13719993229,3cyclictest818-21snmpd22:13:012
13719993229,2cyclictest818-21snmpd21:59:172
13719993229,2cyclictest818-21snmpd21:07:042
13719993228,4cyclictest818-21snmpd23:58:142
13719993228,4cyclictest818-21snmpd23:07:572
13719993227,4cyclictest818-21snmpd20:21:202
13719993227,2cyclictest818-21snmpd21:43:132
13717993229,3cyclictest818-21snmpd23:26:221
13717993229,3cyclictest818-21snmpd22:47:261
13720993129,2cyclictest818-21snmpd22:15:453
13720993129,2cyclictest818-21snmpd20:41:593
13719993130,1cyclictest818-21snmpd00:27:082
13719993128,3cyclictest818-21snmpd20:07:052
13719993128,2cyclictest818-21snmpd19:12:482
13717993130,1cyclictest818-21snmpd23:39:011
13717993129,2cyclictest818-21snmpd22:42:571
13715993130,1cyclictest818-21snmpd22:42:330
13715993129,2cyclictest818-21snmpd22:05:260
13715993129,2cyclictest818-21snmpd00:16:380
13715993129,2cyclictest10761-21cat23:30:150
13720993029,1cyclictest818-21snmpd21:44:373
13720993029,1cyclictest818-21snmpd20:21:233
13720993029,1cyclictest818-21snmpd00:11:123
13720993029,1cyclictest25551-21kworker/u16:1+atlantic23:10:003
13720993028,2cyclictest818-21snmpd21:12:423
13720993028,2cyclictest818-21snmpd20:27:093
13720993028,2cyclictest818-21snmpd20:15:353
13719993029,1cyclictest818-21snmpd22:39:352
13719993029,1cyclictest818-21snmpd20:13:372
13719993028,2cyclictest818-21snmpd23:03:552
13719993026,1cyclictest818-21snmpd19:34:032
13717993029,1cyclictest818-21snmpd23:21:201
13717993029,1cyclictest818-21snmpd22:54:101
13717993029,1cyclictest818-21snmpd20:35:571
13717993028,2cyclictest818-21snmpd23:46:461
13717993028,2cyclictest818-21snmpd00:06:081
13717993028,2cyclictest13820-21cat22:35:141
13715993029,1cyclictest818-21snmpd19:59:460
13715993029,1cyclictest818-21snmpd19:49:010
13715993029,1cyclictest818-21snmpd19:24:390
13715993029,1cyclictest818-21snmpd19:10:300
13715993028,2cyclictest818-21snmpd23:55:350
13715993028,2cyclictest818-21snmpd23:04:280
13715993028,2cyclictest22376-21cat19:25:150
13720992928,1cyclictest818-21snmpd20:53:593
13720992928,1cyclictest818-21snmpd20:39:573
13720992928,1cyclictest24562-21cat22:55:123
13719992928,1cyclictest818-21snmpd21:21:332
13719992928,1cyclictest818-21snmpd20:57:552
13719992925,1cyclictest818-21snmpd23:15:572
13717992929,0cyclictest9532-21kworker/1:0+events23:40:351
13717992929,0cyclictest27194-21kworker/1:1+events20:31:121
13717992929,0cyclictest27194-21kworker/1:1+events19:48:011
13717992929,0cyclictest27194-21kworker/1:1+events19:40:041
13717992929,0cyclictest27194-21kworker/1:1+events19:39:291
13717992929,0cyclictest27194-21kworker/1:1+events19:27:451
13717992929,0cyclictest2599-21kworker/1:2+events00:30:131
13717992929,0cyclictest23593-21kworker/1:0+events21:11:321
13717992929,0cyclictest23593-21kworker/1:0+events20:55:211
13717992929,0cyclictest23593-21kworker/1:0+events20:44:361
13717992929,0cyclictest23459-21kworker/1:0+events23:01:031
13717992929,0cyclictest21867-21kworker/1:0+events00:22:411
13717992929,0cyclictest21867-21kworker/1:0+events00:16:001
13717992929,0cyclictest1504-21kworker/1:0+events23:17:061
13717992929,0cyclictest12486-21kworker/1:1+events21:35:411
13715992927,2cyclictest818-21snmpd00:38:270
13720992827,1cyclictest818-21snmpd21:19:013
13720992827,1cyclictest818-21snmpd20:04:253
13719992827,1cyclictest818-21snmpd00:39:332
13715992827,1cyclictest818-21snmpd21:56:080
13719992726,1cyclictest818-21snmpd20:04:072
13719992725,2cyclictest818-21snmpd23:40:592
13715992726,1cyclictest818-21snmpd20:05:070
13720992625,1cyclictest818-21snmpd21:04:573
13719992624,2cyclictest818-21snmpd22:24:562
13719992624,2cyclictest818-21snmpd20:32:172
13720992524,1cyclictest10632-21cat20:10:153
13720992523,2cyclictest818-21snmpd23:43:343
13719992524,1cyclictest818-21snmpd00:04:452
13719992523,2cyclictest818-21snmpd23:37:552
13715992523,2cyclictest818-21snmpd22:01:520
13715992523,2cyclictest818-21snmpd19:51:490
13719992423,1cyclictest818-21snmpd00:22:062
13719992422,2cyclictest818-21snmpd20:45:152
13715992423,1cyclictest818-21snmpd00:13:570
13720992119,2cyclictest8794-21cat22:25:153
13719992120,1cyclictest818-21snmpd20:19:082
13715992120,1cyclictest818-21snmpd21:27:090
13719992018,2cyclictest818-21snmpd21:02:182
13719992018,2cyclictest818-21snmpd00:05:142
13719991918,1cyclictest818-21snmpd19:22:452
13715991818,0cyclictest818-21snmpd22:46:200
13720991716,1cyclictest818-21snmpd19:12:003
13720991715,2cyclictest5482-21cat23:20:143
13719991716,1cyclictest818-21snmpd20:26:182
13719991514,1cyclictest818-21snmpd22:08:232
13715991413,1cyclictest818-21snmpd22:19:510
137199990,1cyclictest18948-21grep21:35:192
137199965,1cyclictest8972-21cat00:30:212
137199965,1cyclictest26310-21turbostat21:55:002
137199954,1cyclictest16780-21chrt21:30:462
137159954,1cyclictest28719-21expr20:50:120
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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