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2026-05-01 - 18:46

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 Fri May 01, 2026 12:43:52)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
267922329302,25sleep10-21swapper/107:06:481
270292319305,5sleep30-21swapper/307:09:503
268072319305,5sleep20-21swapper/207:06:572
269172315308,5sleep00-21swapper/007:08:230
27310993010,300cyclictest12741-21kworker/u16:0+efi_rts_wq09:20:113
27305993000,299cyclictest21141-21kworker/u16:3+efi_rts_wq11:50:120
27310992980,297cyclictest23496-21kworker/u16:2+efi_rts_wq12:05:133
27309992980,297cyclictest5297-21kworker/u16:1+efi_rts_wq10:30:102
27305992980,297cyclictest23496-21kworker/u16:2+efi_rts_wq12:05:120
27309992970,296cyclictest26701-21kworker/u16:1+efi_rts_wq11:40:122
27305992960,294cyclictest19042-21kworker/u16:3+efi_rts_wq11:05:120
27305992950,294cyclictest7283-21kworker/u16:2+efi_rts_wq11:35:110
27310992940,293cyclictest12741-21kworker/u16:0+efi_rts_wq09:45:133
27309992930,292cyclictest5297-21kworker/u16:1+efi_rts_wq08:25:122
27308992920,291cyclictest5297-21kworker/u16:1+efi_rts_wq10:10:111
27308992920,291cyclictest5297-21kworker/u16:1+efi_rts_wq08:37:131
27309992910,290cyclictest25806-21kworker/u16:0+efi_rts_wq12:15:112
27309992910,290cyclictest12741-21kworker/u16:0+efi_rts_wq09:40:122
27308992910,290cyclictest5297-21kworker/u16:1+efi_rts_wq09:00:131
27305992900,289cyclictest12741-21kworker/u16:0+efi_rts_wq07:20:110
27305992890,288cyclictest5297-21kworker/u16:1+efi_rts_wq07:40:120
27305992890,288cyclictest12741-21kworker/u16:0+efi_rts_wq09:02:170
27305992880,287cyclictest7283-21kworker/u16:2+efi_rts_wq11:27:460
27309992870,286cyclictest5297-21kworker/u16:1+efi_rts_wq10:10:122
27310992850,284cyclictest26701-21kworker/u16:1+efi_rts_wq11:25:113
27305992850,284cyclictest12741-21kworker/u16:0+efi_rts_wq08:15:130
27310992840,283cyclictest5297-21kworker/u16:1+efi_rts_wq08:17:093
27309992840,283cyclictest5297-21kworker/u16:1+efi_rts_wq07:47:032
27309992830,282cyclictest12741-21kworker/u16:0+efi_rts_wq07:35:102
27308992830,282cyclictest23496-21kworker/u16:2+efi_rts_wq12:35:111
27305992830,282cyclictest5297-21kworker/u16:1+efi_rts_wq07:10:130
27310992820,281cyclictest26701-21kworker/u16:1+efi_rts_wq10:57:403
27309992820,281cyclictest5297-21kworker/u16:1+efi_rts_wq09:05:142
27310992810,279cyclictest5297-21kworker/u16:1+efi_rts_wq07:25:123
27308992810,280cyclictest12741-21kworker/u16:0+efi_rts_wq07:35:111
27305992810,280cyclictest12741-21kworker/u16:0+efi_rts_wq08:05:130
27310992790,278cyclictest19042-21kworker/u16:3+efi_rts_wq10:47:383
27308992770,276cyclictest5297-21kworker/u16:1+efi_rts_wq10:45:121
27309992760,275cyclictest12741-21kworker/u16:0+efi_rts_wq09:15:122
27308992760,275cyclictest12741-21kworker/u16:0+efi_rts_wq10:20:121
27309992740,273cyclictest5297-21kworker/u16:1+efi_rts_wq08:20:122
27305992730,272cyclictest23496-21kworker/u16:2+efi_rts_wq12:17:530
27305992730,272cyclictest12741-21kworker/u16:0+efi_rts_wq08:30:110
27305992700,269cyclictest12741-21kworker/u16:0+efi_rts_wq07:37:020
27310992680,267cyclictest26701-21kworker/u16:1+efi_rts_wq11:45:143
27310992660,265cyclictest5297-21kworker/u16:1+efi_rts_wq07:55:113
27308992660,265cyclictest23496-21kworker/u16:2+efi_rts_wq12:20:121
27309992650,264cyclictest19042-21kworker/u16:3+efi_rts_wq11:05:122
27305992640,263cyclictest5297-21kworker/u16:1+efi_rts_wq07:25:130
27309992610,260cyclictest12741-21kworker/u16:0+efi_rts_wq08:10:132
27305992600,259cyclictest5297-21kworker/u16:1+efi_rts_wq09:47:260
27308992570,256cyclictest26701-21kworker/u16:1+efi_rts_wq11:57:501
27305992570,256cyclictest5297-21kworker/u16:1+efi_rts_wq10:02:290
27308992560,254cyclictest12741-21kworker/u16:0+efi_rts_wq10:35:111
27310992550,254cyclictest5297-21kworker/u16:1+efi_rts_wq08:42:143
27305992540,253cyclictest26701-21kworker/u16:1+efi_rts_wq11:30:090
27310992530,252cyclictest12741-21kworker/u16:0+efi_rts_wq07:15:143
27308992530,252cyclictest12741-21kworker/u16:0+efi_rts_wq08:50:121
27310992510,250cyclictest25806-21kworker/u16:0+efi_rts_wq12:10:123
27305992510,250cyclictest26701-21kworker/u16:1+efi_rts_wq11:47:490
27309992500,249cyclictest12741-21kworker/u16:0+efi_rts_wq09:35:122
27305992480,247cyclictest12741-21kworker/u16:0+efi_rts_wq08:40:120
27309992450,244cyclictest12741-21kworker/u16:0+efi_rts_wq09:45:142
27308992450,244cyclictest5297-21kworker/u16:1+efi_rts_wq07:21:591
27308992450,244cyclictest19042-21kworker/u16:3+efi_rts_wq11:20:121
27310992430,242cyclictest5297-21kworker/u16:1+efi_rts_wq08:55:123
27310992420,241cyclictest5297-21kworker/u16:1+efi_rts_wq09:50:103
27309992420,241cyclictest23496-21kworker/u16:2+efi_rts_wq12:35:112
27309992420,241cyclictest12741-21kworker/u16:0+efi_rts_wq10:25:122
27309992420,241cyclictest12741-21kworker/u16:0+efi_rts_wq07:15:002
27310992400,239cyclictest12741-21kworker/u16:0+efi_rts_wq09:30:123
27310992400,238cyclictest26701-21kworker/u16:1+efi_rts_wq11:00:133
27309992390,238cyclictest24136-21kworker/u16:0+efi_rts_wq10:55:112
27310992380,237cyclictest5297-21kworker/u16:1+efi_rts_wq08:45:133
27310992380,237cyclictest23496-21kworker/u16:2+efi_rts_wq12:00:123
27305992380,237cyclictest5297-21kworker/u16:1+efi_rts_wq09:55:110
27309992370,235cyclictest26701-21kworker/u16:1+efi_rts_wq11:30:102
27308992360,235cyclictest5297-21kworker/u16:1+efi_rts_wq09:05:131
27305992350,234cyclictest5297-21kworker/u16:1+efi_rts_wq08:35:130
27309992340,233cyclictest5297-21kworker/u16:1+efi_rts_wq09:22:212
27309992340,233cyclictest12741-21kworker/u16:0+efi_rts_wq08:47:152
27309992330,232cyclictest26701-21kworker/u16:1+efi_rts_wq11:00:132
27308992330,232cyclictest23496-21kworker/u16:2+efi_rts_wq12:30:111
27310992310,230cyclictest25806-21kworker/u16:0+efi_rts_wq12:25:123
27310992310,229cyclictest26701-21kworker/u16:1+efi_rts_wq11:10:113
27310992310,229cyclictest24136-21kworker/u16:0+efi_rts_wq10:50:103
27308992300,229cyclictest25806-21kworker/u16:0+efi_rts_wq12:12:531
27309992290,227cyclictest7283-21kworker/u16:2+efi_rts_wq11:35:112
27305992280,227cyclictest25806-21kworker/u16:0+efi_rts_wq12:27:560
27309992270,226cyclictest19042-21kworker/u16:3+efi_rts_wq11:20:122
27308992250,224cyclictest12741-21kworker/u16:0+efi_rts_wq10:40:111
27308992210,220cyclictest26701-21kworker/u16:1+efi_rts_wq11:40:121
27309992200,219cyclictest12741-21kworker/u16:0+efi_rts_wq09:27:222
27309992190,218cyclictest12741-21kworker/u16:0+efi_rts_wq08:15:132
27309992180,217cyclictest5297-21kworker/u16:1+efi_rts_wq07:50:122
27309992180,217cyclictest12741-21kworker/u16:0+efi_rts_wq10:07:302
27308992180,217cyclictest12741-21kworker/u16:0+efi_rts_wq07:15:131
27309992170,216cyclictest5297-21kworker/u16:1+efi_rts_wq07:40:112
27309992160,215cyclictest12741-21kworker/u16:0+efi_rts_wq10:40:112
27310992150,214cyclictest12741-21kworker/u16:0+efi_rts_wq10:27:343
27310992140,213cyclictest5297-21kworker/u16:1+efi_rts_wq10:22:333
27305992130,212cyclictest5297-21kworker/u16:1+efi_rts_wq09:12:190
27310992110,210cyclictest5297-21kworker/u16:1+efi_rts_wq10:37:363
27310992100,209cyclictest25806-21kworker/u16:0+efi_rts_wq12:32:573
27305992100,209cyclictest5297-21kworker/u16:1+efi_rts_wq07:30:120
27305992090,208cyclictest12741-21kworker/u16:0+efi_rts_wq08:25:120
27309992080,206cyclictest5297-21kworker/u16:1+efi_rts_wq10:15:122
27310992070,206cyclictest21141-21kworker/u16:3+efi_rts_wq11:50:113
27310992050,204cyclictest12741-21kworker/u16:0+efi_rts_wq09:25:123
27309992050,204cyclictest5297-21kworker/u16:1+efi_rts_wq08:07:072
27305992030,202cyclictest12741-21kworker/u16:0+efi_rts_wq10:25:120
27308992020,201cyclictest26701-21kworker/u16:1+efi_rts_wq11:15:131
27308992000,199cyclictest12741-21kworker/u16:0+efi_rts_wq08:30:111
27308991950,194cyclictest12741-21kworker/u16:0+efi_rts_wq08:10:121
27308991930,192cyclictest5297-21kworker/u16:1+efi_rts_wq09:50:111
27308991910,189cyclictest26701-21kworker/u16:1+efi_rts_wq11:02:411
27310991900,189cyclictest5297-21kworker/u16:1+efi_rts_wq09:37:233
27310991900,189cyclictest5297-21kworker/u16:1+efi_rts_wq09:10:113
27310991900,187cyclictest12741-21kworker/u16:0+efi_rts_wq10:05:123
27310991890,188cyclictest5297-21kworker/u16:1+efi_rts_wq07:30:123
27308991860,185cyclictest24136-21kworker/u16:0+efi_rts_wq10:50:101
27305991850,184cyclictest26701-21kworker/u16:1+efi_rts_wq11:10:110
27305991820,181cyclictest5297-21kworker/u16:1+efi_rts_wq10:42:370
27308991810,180cyclictest21141-21kworker/u16:3+efi_rts_wq11:50:121
27310991800,179cyclictest12741-21kworker/u16:0+efi_rts_wq08:27:103
27310991790,178cyclictest5297-21kworker/u16:1+efi_rts_wq10:00:113
27310991790,178cyclictest26701-21kworker/u16:1+efi_rts_wq11:42:483
27309991790,176cyclictest12741-21kworker/u16:0+efi_rts_wq09:30:122
27310991770,176cyclictest12741-21kworker/u16:0+efi_rts_wq10:12:313
27308991730,172cyclictest5297-21kworker/u16:1+efi_rts_wq08:00:121
27305991720,171cyclictest26701-21kworker/u16:1+efi_rts_wq11:22:450
27305991690,168cyclictest12741-21kworker/u16:0+efi_rts_wq09:20:110
27309991680,167cyclictest12741-21kworker/u16:0+efi_rts_wq09:52:272
27310991640,163cyclictest26701-21kworker/u16:1+efi_rts_wq11:15:133
27309991640,163cyclictest5297-21kworker/u16:1+efi_rts_wq08:00:132
27310991620,161cyclictest5297-21kworker/u16:1+efi_rts_wq07:10:123
27309991580,157cyclictest21141-21kworker/u16:3+efi_rts_wq11:55:122
27305991550,154cyclictest5297-21kworker/u16:1+efi_rts_wq08:02:060
27309991540,153cyclictest26701-21kworker/u16:1+efi_rts_wq11:15:132
27310991520,151cyclictest5297-21kworker/u16:1+efi_rts_wq10:32:353
27305991490,148cyclictest12741-21kworker/u16:0+efi_rts_wq07:57:050
27308991450,144cyclictest5297-21kworker/u16:1+efi_rts_wq08:22:101
27305991450,145cyclictest12741-21kworker/u16:0+efi_rts_wq09:17:200
27305991450,144cyclictest5297-21kworker/u16:1+efi_rts_wq08:55:110
27305991430,142cyclictest5297-21kworker/u16:1+efi_rts_wq10:17:320
27308991420,141cyclictest5297-21kworker/u16:1+efi_rts_wq07:52:051
27309991390,138cyclictest25806-21kworker/u16:0+efi_rts_wq12:22:542
27305991380,137cyclictest21141-21kworker/u16:3+efi_rts_wq11:55:120
27308991340,133cyclictest26701-21kworker/u16:1+efi_rts_wq11:45:141
27308991320,132cyclictest25806-21kworker/u16:0+efi_rts_wq12:07:521
27305991280,128cyclictest24136-21kworker/u16:0+efi_rts_wq10:52:390
27310991210,120cyclictest25806-21kworker/u16:0+efi_rts_wq12:15:113
27309991200,119cyclictest12741-21kworker/u16:0+efi_rts_wq08:40:122
27310991150,114cyclictest23496-21kworker/u16:2+efi_rts_wq12:37:583
27305991110,110cyclictest5297-21kworker/u16:1+efi_rts_wq09:42:250
27308991090,108cyclictest26701-21kworker/u16:1+efi_rts_wq11:25:111
27305991090,108cyclictest5297-21kworker/u16:1+efi_rts_wq08:20:130
27309991060,105cyclictest5297-21kworker/u16:1+efi_rts_wq07:55:102
27305991050,104cyclictest23496-21kworker/u16:2+efi_rts_wq12:20:120
27308991040,103cyclictest12741-21kworker/u16:0+efi_rts_wq09:57:281
27310993330,2cyclictest809-21snmpd12:23:453
27310993330,2cyclictest809-21snmpd09:41:323
27309993330,2cyclictest809-21snmpd11:54:202
27308993230,2cyclictest20414-21cat09:25:131
27310993130,0cyclictest23612-21kworker/3:3+events11:20:163
27310993128,2cyclictest809-21snmpd09:03:543
27310993128,2cyclictest809-21snmpd08:33:573
27309993129,2cyclictest809-21snmpd10:39:392
27309993129,2cyclictest32724-21cat07:20:132
27308993130,1cyclictest809-21snmpd09:33:521
27308993129,2cyclictest809-21snmpd09:40:441
27308993129,2cyclictest809-21snmpd09:39:561
27308993129,2cyclictest809-21snmpd08:59:011
27308993129,2cyclictest809-21snmpd07:55:291
27308993129,2cyclictest11417-21cat07:45:151
27305993129,2cyclictest813-21ntpd11:16:550
27305993129,2cyclictest809-21snmpd12:39:460
27305993129,2cyclictest809-21snmpd10:35:420
27305993129,2cyclictest809-21snmpd09:08:430
27305993128,3cyclictest809-21snmpd10:34:030
27310993030,0cyclictest11972-21kworker/3:0+events11:37:053
27310993029,1cyclictest809-21snmpd10:19:453
27310993029,1cyclictest809-21snmpd09:56:113
27310993029,1cyclictest809-21snmpd08:53:453
27310993029,1cyclictest809-21snmpd07:47:523
27310993029,1cyclictest19091-21kworker/3:0+events10:43:453
27310993028,2cyclictest19699-21cat08:05:153
27309993029,1cyclictest809-21snmpd12:01:092
27309993029,1cyclictest809-21snmpd11:29:112
27309993029,1cyclictest809-21snmpd09:14:342
27308993030,0cyclictest5297-21kworker/u16:1+atlantic10:31:141
27308993029,1cyclictest809-21snmpd12:17:121
27308993029,1cyclictest809-21snmpd10:02:211
27308993029,1cyclictest809-21snmpd08:05:291
27308993028,2cyclictest809-21snmpd12:03:271
27305993029,1cyclictest809-21snmpd08:54:360
27305993029,1cyclictest809-21snmpd07:16:520
27305993028,2cyclictest809-21snmpd09:33:310
27310992929,0cyclictest30862-21kworker/3:0+events08:22:343
27310992929,0cyclictest22452-21kworker/3:1+events11:55:003
27310992929,0cyclictest11972-21kworker/3:0+events11:34:563
27310992928,1cyclictest816-21lldpd09:16:363
27310992928,1cyclictest809-21snmpd07:40:523
27310992928,1cyclictest809-21snmpd07:35:013
27310992927,2cyclictest809-21snmpd11:05:583
27310992927,2cyclictest809-21snmpd08:01:053
27309992928,1cyclictest809-21snmpd12:26:512
27309992928,1cyclictest809-21snmpd12:06:332
27309992928,1cyclictest809-21snmpd10:46:552
27309992928,1cyclictest19911-21cat11:45:152
27308992928,1cyclictest809-21snmpd09:24:401
27308992928,1cyclictest809-21snmpd07:32:521
27308992928,1cyclictest809-21snmpd07:10:451
27308992928,1cyclictest74950irq/133-enp1s010:55:431
27308992927,2cyclictest809-21snmpd11:07:261
27305992929,0cyclictest809-21snmpd09:28:070
27305992929,0cyclictest5297-21kworker/u16:1+atlantic10:22:000
27305992928,1cyclictest809-21snmpd12:32:390
27305992928,1cyclictest74750irq/131-enp1s010:45:220
27310992827,1cyclictest809-21snmpd07:22:043
27309992827,1cyclictest809-21snmpd12:13:212
27309992827,1cyclictest809-21snmpd08:35:332
27309992827,1cyclictest809-21snmpd07:30:342
27309992827,1cyclictest809-21snmpd07:13:572
27308992828,0cyclictest5297-21kworker/u16:1+atlantic10:15:361
27308992827,1cyclictest809-21snmpd10:27:271
27308992827,1cyclictest809-21snmpd08:16:231
27305992827,1cyclictest809-21snmpd12:11:210
27310992727,0cyclictest30862-21kworker/3:0+events08:10:123
27309992726,1cyclictest809-21snmpd09:02:362
27309992726,1cyclictest809-21snmpd08:30:542
27308992727,0cyclictest5297-21kworker/u16:1+atlantic07:44:091
27308992726,1cyclictest809-21snmpd11:11:221
27308992726,1cyclictest809-21snmpd09:19:221
27308992725,2cyclictest809-21snmpd08:45:301
27308992725,2cyclictest809-21snmpd08:26:351
27308992725,2cyclictest809-21snmpd07:25:191
27305992727,0cyclictest74850irq/132-enp1s010:57:380
27305992726,1cyclictest809-21snmpd09:36:340
27305992726,1cyclictest809-21snmpd08:45:390
27305992725,2cyclictest809-21snmpd11:43:200
27305992724,2cyclictest809-21snmpd07:50:250
27309992624,2cyclictest809-21snmpd12:33:062
27309992624,2cyclictest809-21snmpd10:51:522
27309992624,2cyclictest3567-21cat11:10:132
27305992625,1cyclictest809-21snmpd10:05:200
27305992625,1cyclictest809-21snmpd08:10:590
27305992524,1cyclictest809-21snmpd11:01:490
27305992524,1cyclictest809-21snmpd10:10:240
27310992424,0cyclictest30862-21kworker/3:0+events09:09:243
27308992423,1cyclictest809-21snmpd11:35:321
27308992422,2cyclictest809-21snmpd10:09:111
27310992323,0cyclictest30862-21kworker/3:0+events07:50:283
27308992323,0cyclictest26701-21kworker/u16:1+atlantic11:31:401
27305992322,1cyclictest809-21snmpd09:54:500
27305992221,1cyclictest809-21snmpd07:45:250
27310992121,0cyclictest30862-21kworker/3:0+events08:35:003
27309992120,1cyclictest809-21snmpd08:50:092
27308992119,2cyclictest14225-21cat09:10:131
27308992018,2cyclictest813-21ntpd08:41:551
27305992020,0cyclictest23496-21kworker/u16:2+atlantic12:00:090
27308991917,2cyclictest813-21ntpd09:46:551
27309991817,1cyclictest744-21cat09:55:132
27308991818,0cyclictest809-21snmpd12:25:361
27309991716,1cyclictest809-21snmpd10:00:412
27309991615,1cyclictest809-21snmpd10:21:042
273099965,1cyclictest9057-21chrt08:58:232
273099964,2cyclictest2386-21cat07:25:142
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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