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2026-09-07 - 18:35

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #e, slot #6

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.

Total number of samples: 100 million
Resolution of latency scale: normal
Duration: 5 hours, 33 minutes
Compare latency of primary with shadow system
Characteristics of all highest latencies:
System rackeslot6s.osadl.org (updated Mon Sep 07, 2026 12:44:49)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2605269910296,2cyclictest0-21swapper/010:55:010
260526997960,16cyclictest0-21swapper/012:35:000
260526997638,33cyclictest20650irq/252-8000000.ethernet09:30:250
260526997240,24cyclictest20650irq/252-8000000.ethernet09:40:160
260526997238,30cyclictest20650irq/252-8000000.ethernet07:25:010
260526997238,29cyclictest282940-21head09:15:280
260526997144,19cyclictest281875-21proc_pri09:10:250
26052699711,4cyclictest261332-21munin-run07:15:000
260526997038,28cyclictest20650irq/252-8000000.ethernet11:55:270
260526997023,38cyclictest0-21swapper/008:20:260
260527996963,4cyclictest231ktimers/109:30:001
260526996859,2cyclictest0-21swapper/007:55:110
260526996837,27cyclictest20650irq/252-8000000.ethernet10:20:180
260526996837,27cyclictest20650irq/252-8000000.ethernet10:20:180
260526996836,28cyclictest20650irq/252-8000000.ethernet07:40:260
260526996831,30cyclictest291030-21/usr/sbin/munin10:05:160
260526996829,36cyclictest20850irq/208-8000000.ethernet12:00:230
260526996748,14cyclictest20650irq/252-8000000.ethernet08:25:270
260526996738,26cyclictest20650irq/252-8000000.ethernet08:55:160
260526996738,26cyclictest20650irq/252-8000000.ethernet08:55:150
260526996737,22cyclictest20650irq/252-8000000.ethernet11:50:160
260526996735,27cyclictest20650irq/252-8000000.ethernet10:25:240
260526996730,34cyclictest278688-21munin-plugin-st08:55:000
260526996722,39cyclictest0-21swapper/010:50:010
260526996722,39cyclictest0-21swapper/010:50:010
260526996629,33cyclictest0-21swapper/009:50:000
260526996542,18cyclictest0-21swapper/008:00:090
260526996541,21cyclictest20650irq/252-8000000.ethernet12:10:290
260526996538,23cyclictest20650irq/252-8000000.ethernet10:40:190
260526996536,22cyclictest0-21swapper/009:55:150
26052699652,57cyclictest0-21swapper/010:15:020
260526996440,21cyclictest0-21swapper/009:00:250
260526996438,21cyclictest20650irq/252-8000000.ethernet07:50:230
26052699641,60cyclictest313977-21apt-get12:20:120
260526996340,19cyclictest20650irq/252-8000000.ethernet07:15:160
260526996318,7cyclictest295392-21grep10:30:200
260526996312,5cyclictest300786-21ptp4l11:00:270
260526996232,27cyclictest301460-21if_eth111:05:230
260526996229,29cyclictest0-21swapper/008:50:010
260526996229,28cyclictest0-21swapper/007:30:290
260526996138,19cyclictest20650irq/252-8000000.ethernet11:40:010
260526996138,19cyclictest20650irq/252-8000000.ethernet11:40:010
260526996135,23cyclictest0-21swapper/011:20:280
26052699611,4cyclictest0-21swapper/008:30:120
260526996035,23cyclictest0-21swapper/010:05:000
260526996035,21cyclictest20650irq/252-8000000.ethernet08:40:130
260526996034,22cyclictest286566-21latency_hist09:40:010
26052699603,16cyclictest292372-21grep10:10:300
260526996022,34cyclictest20850irq/208-8000000.ethernet12:05:220
260526995937,19cyclictest20650irq/252-8000000.ethernet07:35:180
260526995921,34cyclictest20850irq/208-8000000.ethernet11:30:020
26053099587,17cyclictest280380-21apt-get09:05:012
26052799581,2cyclictest0-21swapper/108:55:001
260526995839,14cyclictest308861-21latency_hist11:50:010
260526995837,18cyclictest0-21swapper/009:55:000
260526995835,20cyclictest267145-21tune2fs07:45:200
26052699583,11cyclictest270905-21tail08:05:280
26052699583,11cyclictest270905-21tail08:05:280
260526995825,28cyclictest0-21swapper/010:55:190
260527995712,6cyclictest288063-21apt-get09:50:011
26052699575,11cyclictest313671-21grep12:15:280
260526995740,13cyclictest20650irq/252-8000000.ethernet11:15:160
260526995735,19cyclictest263661-21tune2fs07:25:210
260526995735,18cyclictest314922-21fschecks_count12:25:210
260526995735,18cyclictest314922-21fschecks_count12:25:200
260527995623,17cyclictest231ktimers/111:00:001
26052699567,44cyclictest0-21swapper/009:20:290
260526995634,18cyclictest20650irq/252-8000000.ethernet09:05:110
26052699563,12cyclictest272635-21grep08:15:280
260526995631,21cyclictest305654-21cat11:30:220
260526995629,24cyclictest20850irq/208-8000000.ethernet11:10:170
260526995629,24cyclictest20850irq/208-8000000.ethernet11:10:170
26052699561,47cyclictest0-21swapper/008:40:000
26052799551,28cyclictest0-21swapper/108:10:181
26052799547,19cyclictest24-21ksoftirqd/107:30:021
260526995435,16cyclictest0-21swapper/008:10:240
260526995419,4cyclictest20850irq/208-8000000.ethernet11:40:260
26052699541,4cyclictest284121-21diskstats09:25:190
260527995220,10cyclictest274378-21apt-get08:30:001
26052699522,14cyclictest296345-21/usr/sbin/munin10:35:240
260526995219,4cyclictest316859-21proc_pri12:35:260
260527995141,7cyclictest299312-21munin-plugin-st10:54:591
26052699511,48cyclictest0-21swapper/007:10:000
26053099485,19cyclictest30-21rcuc/211:40:022
26053099485,19cyclictest30-21rcuc/211:40:012
260530994738,6cyclictest266698-21munin-plugin-st07:45:002
260527994738,5cyclictest268807-21sshd07:55:211
260527994637,5cyclictest316295-21munin-plugin-st12:35:001
260527994632,9cyclictest0-21swapper/112:00:301
260527994632,9cyclictest0-21swapper/110:15:271
260530994534,7cyclictest287192-21unixbench_singl09:40:292
260530994532,8cyclictest0-21swapper/207:15:012
260527994532,8cyclictest0-21swapper/109:15:281
260527994532,8cyclictest0-21swapper/109:10:281
260527994513,27cyclictest280671-21/usr/sbin/munin09:05:191
260527994433,7cyclictest0-21swapper/111:05:291
260527994433,7cyclictest0-21swapper/109:50:301
260527994428,8cyclictest0-21swapper/112:25:291
260527994428,8cyclictest0-21swapper/112:25:281
260527994427,9cyclictest0-21swapper/108:55:271
260527994427,9cyclictest0-21swapper/108:55:271
260530994336,4cyclictest268466-21munin-plugin-st07:55:012
260530994333,6cyclictest0-21swapper/211:45:002
26053099431,3cyclictest0-21swapper/209:45:192
260527994334,6cyclictest231ktimers/111:55:161
260527994334,4cyclictest0-21swapper/111:40:221
260527994331,8cyclictest0-21swapper/111:25:281
260527994330,8cyclictest0-21swapper/107:10:301
260527994320,17cyclictest266058-21/usr/sbin/munin07:40:181
260530994231,7cyclictest0-21swapper/210:10:292
26052799425,4cyclictest298377-21apt-get10:50:021
26052799425,4cyclictest298377-21apt-get10:50:021
260527994230,7cyclictest0-21swapper/107:15:301
260527994229,8cyclictest0-21swapper/110:30:281
260527994226,10cyclictest0-21swapper/112:35:281
260530994130,7cyclictest0-21swapper/208:35:292
260530994127,8cyclictest0-21swapper/209:05:222
260527994134,4cyclictest231ktimers/108:35:121
260527994129,8cyclictest0-21swapper/107:55:001
260527994128,8cyclictest0-21swapper/112:05:291
260527994126,10cyclictest0-21swapper/111:50:301
260527994125,11cyclictest0-21swapper/108:20:011
260530994029,5cyclictest0-21swapper/208:15:292
26053099401,7cyclictest832-21systemd-network11:09:262
260527994031,5cyclictest0-21swapper/111:50:001
260527994029,7cyclictest0-21swapper/109:20:291
260527994026,7cyclictest312797-21grep12:10:281
26053099393,29cyclictest30-21rcuc/208:10:182
260530993929,6cyclictest282909-21grep09:15:272
260530993929,4cyclictest0-21swapper/212:30:282
260530993925,10cyclictest0-21swapper/209:10:262
260527993928,8cyclictest0-21swapper/112:15:271
260527993927,8cyclictest0-21swapper/112:20:281
260527993927,8cyclictest0-21swapper/109:00:281
260527993924,9cyclictest0-21swapper/111:10:301
260527993924,9cyclictest0-21swapper/111:10:291
260527993921,10cyclictest0-21swapper/111:15:231
260530993830,4cyclictest14-21rcu_preempt11:30:242
260530993829,4cyclictest0-21swapper/211:55:292
260530993827,8cyclictest308765-21latency_hist11:50:012
260527993832,3cyclictest14-21rcu_preempt10:10:221
260527993826,9cyclictest0-21swapper/108:20:281
260530993728,5cyclictest289839-21unixbench_multi09:55:272
260530993724,8cyclictest0-21swapper/210:50:012
260530993724,8cyclictest0-21swapper/210:50:012
260527993727,7cyclictest0-21swapper/107:49:591
260527993727,5cyclictest0-21swapper/111:30:171
260527993723,7cyclictest0-21swapper/111:20:271
26053099364,22cyclictest32-21ksoftirqd/209:35:202
260530993623,9cyclictest0-21swapper/208:05:262
260530993623,9cyclictest0-21swapper/208:05:262
26053099361,29cyclictest265200-21/usr/sbin/munin07:35:172
26053099361,22cyclictest0-21swapper/208:30:012
260530993611,9cyclictest300369-21/usr/sbin/munin11:00:192
260527993630,3cyclictest288993-21apt-get09:55:021
260527993627,5cyclictest0-21swapper/111:35:151
260527993627,5cyclictest0-21swapper/111:35:141
260527993626,6cyclictest0-21swapper/110:40:301
260527993625,7cyclictest231ktimers/107:20:131
260527993625,6cyclictest0-21swapper/110:05:271
26053099354,24cyclictest311975-21tail12:05:292
260530993527,4cyclictest0-21swapper/207:30:002
260530993524,6cyclictest0-21swapper/210:20:002
260530993520,9cyclictest311ktimers/210:55:102
260527993530,3cyclictest22-21rcuc/110:20:181
260527993530,3cyclictest22-21rcuc/110:20:181
260527993525,7cyclictest231ktimers/108:40:301
260527993524,4cyclictest0-21swapper/109:30:261
26052799351,4cyclictest0-21swapper/109:45:001
260530993425,6cyclictest0-21swapper/210:40:302
260530993425,4cyclictest0-21swapper/209:20:202
260530993424,6cyclictest0-21swapper/209:55:022
260530993423,7cyclictest0-21swapper/209:25:282
260530993422,9cyclictest0-21swapper/208:50:182
260530993421,6cyclictest30-21rcuc/211:15:132
260527993427,4cyclictest167450irq/126-8000000.ethernet-tx107:30:101
260527993427,4cyclictest14-21rcu_preempt08:00:191
260527993426,5cyclictest231ktimers/110:05:011
260527993423,6cyclictest0-21swapper/110:35:291
260527993421,7cyclictest231ktimers/108:45:151
260530993322,7cyclictest30-21rcuc/208:55:152
260530993322,7cyclictest30-21rcuc/208:55:142
260530993322,6cyclictest0-21swapper/210:30:282
260530993315,14cyclictest311ktimers/208:40:132
260530993314,5cyclictest167550irq/134-8000000.ethernet-tx212:23:222
260527993325,5cyclictest231ktimers/111:05:001
260527993321,7cyclictest0-21swapper/109:35:281
260530993222,7cyclictest311ktimers/207:45:122
260530993220,8cyclictest0-21swapper/208:45:272
260527993224,5cyclictest231ktimers/110:25:251
260530993124,4cyclictest0-21swapper/211:25:262
260530993123,5cyclictest0-21swapper/210:20:292
260530993123,5cyclictest0-21swapper/210:20:282
260530993122,5cyclictest0-21swapper/210:25:222
260530993121,7cyclictest0-21swapper/208:00:262
260530993120,8cyclictest0-21swapper/212:10:192
260530993119,8cyclictest0-21swapper/208:20:292
260527993120,8cyclictest0-21swapper/108:30:211
260527993120,7cyclictest231ktimers/107:35:121
26053099304,19cyclictest32-21ksoftirqd/212:25:152
26053099304,19cyclictest32-21ksoftirqd/212:25:152
260530993022,5cyclictest0-21swapper/211:15:012
260530993022,5cyclictest0-21swapper/211:15:012
260530993021,4cyclictest0-21swapper/211:50:172
260530993020,5cyclictest0-21swapper/211:20:202
260530993018,9cyclictest0-21swapper/210:00:212
260530993018,8cyclictest0-21swapper/212:15:272
26053099301,5cyclictest30-21rcuc/212:40:002
260530992920,5cyclictest30-21rcuc/208:35:022
26053099291,26cyclictest0-21swapper/212:00:312
26052799292,3cyclictest270365-21apt-get08:05:121
26052799292,3cyclictest270365-21apt-get08:05:111
260530992820,6cyclictest0-21swapper/207:20:222
260530992817,7cyclictest0-21swapper/210:50:322
26053099281,25cyclictest0-21swapper/207:30:222
260530992719,3cyclictest285302-21ptp4l09:30:262
260530992716,7cyclictest0-21swapper/207:15:042
260527992716,4cyclictest0-21swapper/107:10:001
260530992619,5cyclictest296043-21/usr/sbin/munin10:35:122
260530992616,8cyclictest311ktimers/210:05:142
260530992516,7cyclictest0-21swapper/207:55:162
260530992114,5cyclictest0-21swapper/207:10:012
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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