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2026-03-11 - 22:18

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #c, slot #7

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 here to display the system's profile data or here to proceed to next system.
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 100 highest latencies:
System rackcslot7s.osadl.org (updated Wed Mar 11, 2026 12:44:54)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
51070899490456,14cyclictest528832-21turbostat08:00:003
51070399474440,20cyclictest527098-21turbostat07:59:542
51070899466457,6cyclictest607382-21turbostat11:49:553
51070899465456,6cyclictest546188-21turbostat08:50:003
51070899463455,5cyclictest562073-21turbostat09:34:593
51070899462455,4cyclictest514575-21turbostat07:24:553
51070899462455,4cyclictest514575-21turbostat07:24:553
51070899461454,4cyclictest622971-21turbostat12:29:593
51070899461454,4cyclictest540997-21turbostat08:35:013
51070899461453,5cyclictest588339-21turbostat10:49:593
51070899461452,6cyclictest574194-21turbostat10:14:563
51070899460453,4cyclictest518085-21turbostat07:34:553
51070899460451,6cyclictest612591-21turbostat12:00:003
51070899458451,4cyclictest519812-21turbostat07:39:553
51070899457448,6cyclictest588339-21turbostat10:54:553
51070899456449,4cyclictest532292-21turbostat08:14:553
51070899456449,4cyclictest532292-21turbostat08:14:543
51069499456448,5cyclictest549649-21turbostat09:04:560
51070899454447,4cyclictest568998-21turbostat09:54:593
51070899454447,4cyclictest537536-21turbostat08:29:553
51070899452445,4cyclictest572459-21turbostat10:05:003
51070899452445,4cyclictest560337-21turbostat09:30:003
51070899451444,4cyclictest556886-21turbostat09:24:563
51070899451442,6cyclictest547917-21turbostat08:55:003
51070899451431,17cyclictest590074-21turbostat10:59:553
51070899450443,4cyclictest621246-21turbostat12:24:593
51070899450443,4cyclictest527098-21turbostat07:55:003
51070899448441,4cyclictest616054-21turbostat12:10:013
51070899444436,5cyclictest605656-21turbostat11:44:553
51070899443435,5cyclictest542730-21turbostat08:40:003
51070899443435,5cyclictest542730-21turbostat08:40:003
51070899441433,5cyclictest595262-21turbostat11:09:593
51070899441432,6cyclictest591800-21turbostat11:04:563
51070899441432,6cyclictest591800-21turbostat11:04:563
51070899440431,6cyclictest614321-21turbostat12:04:593
51070899438430,5cyclictest512358-21turbostat07:15:003
51070899436429,4cyclictest521601-21turbostat07:44:553
51070399436429,4cyclictest577660-21turbostat10:24:552
51070899435426,6cyclictest619515-21turbostat12:20:003
51070899434411,20cyclictest600469-21turbostat11:29:563
51070899433411,19cyclictest602198-21turbostat11:34:543
51070899431418,10cyclictest617779-21turbostat12:15:013
51070899427404,20cyclictest542730-21turbostat08:44:553
51070899424416,5cyclictest565536-21turbostat09:45:013
51070899418410,5cyclictest547917-21turbostat08:59:553
51070899417410,4cyclictest537536-21turbostat08:25:003
51070899415408,4cyclictest556886-21turbostat09:20:013
51070899414405,6cyclictest624703-21turbostat12:35:013
51070899413406,4cyclictest567266-21turbostat09:50:003
51070899413406,4cyclictest567266-21turbostat09:50:003
51070899412405,4cyclictest532292-21turbostat08:10:003
51070899411403,5cyclictest575920-21turbostat10:19:553
51070899406386,17cyclictest584879-21turbostat10:40:003
51070899406386,17cyclictest584879-21turbostat10:40:003
51070899404396,5cyclictest603928-21turbostat11:39:553
51070899403393,7cyclictest553413-21turbostat09:10:003
51070899401394,4cyclictest568998-21turbostat09:59:553
51070899397389,5cyclictest535805-21turbostat08:20:003
51069499389381,5cyclictest534077-21turbostat08:19:550
51070899388381,4cyclictest572459-21turbostat10:09:553
51070899386377,6cyclictest598736-21turbostat11:24:553
51070899385376,6cyclictest596988-21turbostat11:19:553
51070399383376,4cyclictest560337-21turbostat09:34:552
51070899381374,4cyclictest530557-21turbostat08:05:003
51070899380374,4cyclictest512358-21turbostat07:19:553
51070899372365,5cyclictest579384-21turbostat10:24:593
51070899367359,5cyclictest595262-21turbostat11:14:543
51070899366345,18cyclictest584879-21turbostat10:44:553
51070899363356,4cyclictest518085-21turbostat07:30:003
51070899358352,3cyclictest609111-21turbostat11:54:563
51070899358352,3cyclictest609111-21turbostat11:54:563
51069499357350,4cyclictest510574-21turbostat07:14:550
51070899356350,3cyclictest626740-21turbostat12:40:013
51070899346339,4cyclictest555138-21turbostat09:15:003
51070899333326,4cyclictest523338-21turbostat07:49:543
51070399329322,4cyclictest570726-21turbostat10:04:542
51069499326318,5cyclictest581116-21turbostat10:34:550
51070899265247,13cyclictest551387-21turbostat09:04:593
51070899253226,23cyclictest583146-21turbostat10:35:013
51070899198189,6cyclictest563802-21turbostat09:40:003
1973991490,96rtkit-daemon0-21swapper/307:06:253
510520211077,23sleep10-21swapper/107:09:381
510271210774,23sleep20-21swapper/207:06:242
510514210573,22sleep00-21swapper/007:09:330
1973991050,6rtkit-daemon4497-21PK-Backend10:47:090
5107089910188,9cyclictest581116-21turbostat10:30:003
1973991010,6rtkit-daemon611496-21diskstats11:55:140
5277302900,8sleep04497-21PK-Backend07:55:150
197399820,6rtkit-daemon4497-21PK-Backend11:40:461
5265392760,5sleep1526542-21switchtime07:50:301
197399760,5rtkit-daemon4497-21PK-Backend10:42:441
197399720,6rtkit-daemon4497-21PK-Backend11:21:091
197399720,6rtkit-daemon4497-21PK-Backend11:07:241
197399720,6rtkit-daemon4497-21PK-Backend10:48:501
197399720,5rtkit-daemon0-21swapper/112:06:261
197399720,5rtkit-daemon0-21swapper/111:25:541
197399720,5rtkit-daemon0-21swapper/111:13:261
197399710,6rtkit-daemon4497-21PK-Backend11:32:171
197399710,5rtkit-daemon0-21swapper/112:00:421
197399710,5rtkit-daemon0-21swapper/111:00:491
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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