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2026-04-03 - 20:17

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 the 792 highest latencies:
System rackeslot6s.osadl.org (updated Fri Apr 03, 2026 12:44:49)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
92456998040,21cyclictest0-21swapper/209:30:012
9245699797,53cyclictest0-21swapper/211:05:012
92454996718,40cyclictest0-21swapper/112:30:271
92454996521,36cyclictest0-21swapper/108:25:001
92456996434,15cyclictest92447-21cyclictest09:15:012
92454996424,35cyclictest98137-21/usr/sbin/munin07:40:151
92454996332,25cyclictest0-21swapper/110:40:271
92454996125,30cyclictest0-21swapper/109:15:271
92454996119,33cyclictest0-21swapper/107:50:251
92454995925,27cyclictest0-21swapper/108:00:201
92454995720,32cyclictest0-21swapper/112:00:281
92454995720,32cyclictest0-21swapper/112:00:281
9245499571,49cyclictest0-21swapper/109:40:211
92454995622,27cyclictest0-21swapper/109:10:191
92454995621,29cyclictest0-21swapper/107:30:221
92454995617,5cyclictest0-21swapper/108:35:251
92454995615,32cyclictest0-21swapper/108:30:191
92454995614,5cyclictest0-21swapper/111:05:271
92454995516,6cyclictest0-21swapper/111:20:281
92454995516,6cyclictest0-21swapper/111:20:281
9245299551,16cyclictest0-21swapper/011:20:010
92454995418,29cyclictest0-21swapper/112:15:271
92454995417,4cyclictest0-21swapper/109:05:251
92454995414,32cyclictest0-21swapper/110:10:301
92454995339,9cyclictest116713-21apt-key09:30:011
92454995320,7cyclictest139027-21/usr/sbin/munin11:40:291
92454995318,4cyclictest0-21swapper/112:35:211
92454995314,4cyclictest0-21swapper/107:15:161
92454995314,4cyclictest0-21swapper/107:15:161
92454995238,10cyclictest128683-21sendmail10:40:001
92454995225,21cyclictest125304-21sh10:20:011
92454995216,4cyclictest0-21swapper/112:00:001
92454995216,4cyclictest0-21swapper/111:15:011
92456995137,9cyclictest0-21swapper/212:25:002
92454995120,27cyclictest112631-21latency_hist09:05:011
92454995118,3cyclictest0-21swapper/109:35:271
92454995115,5cyclictest0-21swapper/108:45:021
9245499511,2cyclictest0-21swapper/111:05:011
92456995041,5cyclictest128685-21munin-plugin-st10:39:592
9245499505,12cyclictest0-21swapper/112:25:271
9245499505,12cyclictest0-21swapper/112:25:271
92454995023,21cyclictest0-21swapper/111:00:011
92454995019,26cyclictest0-21swapper/110:25:201
92454995019,26cyclictest0-21swapper/110:25:201
92454995016,3cyclictest0-21swapper/108:10:281
92454995015,6cyclictest0-21swapper/107:45:241
92454995011,6cyclictest0-21swapper/107:10:211
92452995039,4cyclictest120041-21grep09:45:280
92456994914,28cyclictest103614-21ptp4l-jitter08:10:282
92456994913,28cyclictest108644-21kernelversion08:40:232
9245499492,13cyclictest130334-21unixbench_singl10:45:281
92454994915,3cyclictest0-21swapper/109:45:251
92456994837,7cyclictest105536-21munin-plugin-st08:24:592
9245499485,11cyclictest0-21swapper/112:10:281
92454994834,9cyclictest0-21swapper/110:25:001
92454994814,4cyclictest0-21swapper/111:15:141
92454994812,8cyclictest0-21swapper/108:10:021
92452994840,4cyclictest167350irq/118-8000000.ethernet-tx009:25:230
92452994836,9cyclictest97926-21sendmail07:40:010
92456994732,10cyclictest118451-21sh09:40:002
92454994720,23cyclictest141339-21cron11:55:011
92454994715,3cyclictest117743-21latency_hist09:35:021
92454994714,5cyclictest0-21swapper/111:45:161
92454994713,7cyclictest0-21swapper/110:05:291
92454994713,5cyclictest0-21swapper/111:25:271
92454994712,31cyclictest0-21swapper/108:50:281
92452994739,4cyclictest104443-21ptp4l08:15:250
92452994739,4cyclictest104443-21ptp4l08:15:250
92452994730,14cyclictest167350irq/118-8000000.ethernet-tx012:30:210
9245299471,14cyclictest0-21swapper/007:35:010
92456994640,4cyclictest311ktimers/211:55:012
92454994617,25cyclictest0-21swapper/107:10:011
92452994636,5cyclictest0-21swapper/008:00:270
92452994635,8cyclictest108634-21kernelversion08:40:220
9245499452,5cyclictest109451-21grep08:45:191
92454994513,5cyclictest0-21swapper/108:55:261
92454994511,8cyclictest0-21swapper/108:20:011
92454994511,8cyclictest0-21swapper/108:20:011
92452994537,4cyclictest167350irq/118-8000000.ethernet-tx008:30:040
92452994537,4cyclictest167350irq/118-8000000.ethernet-tx007:55:270
92452994536,4cyclictest167350irq/118-8000000.ethernet-tx007:25:010
9245299452,5cyclictest149032-21munin-run12:40:000
9245299451,38cyclictest0-21swapper/010:15:000
92454994416,4cyclictest0-21swapper/110:35:001
9245499441,3cyclictest0-21swapper/107:58:421
9245299449,33cyclictest0-21swapper/009:50:160
92452994435,5cyclictest0-21swapper/008:50:170
92452994431,9cyclictest0-21swapper/011:25:200
9245299442,3cyclictest115307-21grep09:20:170
92456994336,4cyclictest143881-21munin-plugin-st12:10:002
92456994331,8cyclictest0-21swapper/209:30:282
92454994328,9cyclictest0-21swapper/109:50:291
92454994317,6cyclictest231ktimers/112:20:231
92452994336,4cyclictest167350irq/118-8000000.ethernet-tx007:40:300
92452994335,5cyclictest167350irq/118-8000000.ethernet-tx011:50:230
92452994333,5cyclictest0-21swapper/009:55:280
9245299431,4cyclictest138242-21diskstats11:35:180
9245299431,39cyclictest0-21swapper/011:10:120
9245299431,37cyclictest0-21swapper/008:45:010
92456994235,4cyclictest167550irq/134-8000000.ethernet-tx208:00:232
92456994230,7cyclictest0-21swapper/207:15:272
92456994230,7cyclictest0-21swapper/207:15:272
9245699422,9cyclictest121768-21unixbench_singl09:55:292
92456994228,8cyclictest137872-21grep11:30:282
9245699422,32cyclictest109864-21unixbench_singl08:45:272
92454994215,5cyclictest115657-21find09:20:261
92454994214,6cyclictest231ktimers/108:25:131
92454994214,6cyclictest231ktimers/108:25:131
9245499421,22cyclictest0-21swapper/107:25:221
92452994231,7cyclictest0-21swapper/011:55:280
9245299422,35cyclictest0-21swapper/011:05:000
9245299421,4cyclictest122905-21apt-config10:05:010
9245299421,4cyclictest111544-21unixbench_singl08:55:270
9245299421,38cyclictest99316-21/usr/sbin/munin07:45:250
9245299421,37cyclictest102965-21users08:05:270
92456994125,11cyclictest0-21swapper/210:30:182
9245699411,7cyclictest124349-21unixbench_multi10:10:302
92454994123,15cyclictest0-21swapper/110:00:161
92452994133,4cyclictest20850irq/208-8000000.ethernet11:00:000
92452994124,12cyclictest0-21swapper/007:10:010
9245299411,7cyclictest0-21swapper/011:10:010
9245299411,3cyclictest0-21swapper/010:50:010
9245299411,38cyclictest0-21swapper/007:25:120
9245299411,2cyclictest0-21swapper/012:25:010
92456994018,15cyclictest125518-21/usr/sbin/munin10:20:192
9245699401,6cyclictest129474-21grep10:40:272
92452994033,4cyclictest19750irq/27-20000000.i2c09:15:270
92452994033,4cyclictest0-21swapper/010:30:160
92452994026,10cyclictest0-21swapper/012:15:200
9245299402,3cyclictest104896-21apt-get08:20:140
9245299401,37cyclictest0-21swapper/010:05:000
9245299401,36cyclictest126597-21if_eth110:25:220
9245299401,36cyclictest126597-21if_eth110:25:220
9245299401,35cyclictest125170-21xargs10:15:260
9245299401,32cyclictest100621-21latency_hist07:55:010
92456993927,8cyclictest133658-21grep11:05:272
9245699392,31cyclictest125234-21unixbench_singl10:15:282
9245499394,10cyclictest97877-21unixbench_singl07:35:281
92452993932,4cyclictest136292-21munin-plugin-st11:25:000
92452993932,4cyclictest136292-21munin-plugin-st11:25:000
92452993932,4cyclictest0-21swapper/009:10:250
92452993928,6cyclictest131ktimers/010:35:290
92452993924,12cyclictest0-21swapper/010:55:010
92452993922,13cyclictest0-21swapper/009:00:270
9245299391,4cyclictest103244-21df08:10:170
9245299391,3cyclictest0-21swapper/010:25:010
9245299391,35cyclictest117125-21fschecks_time09:30:190
9245699386,25cyclictest0-21swapper/210:50:222
92456993827,5cyclictest0-21swapper/207:10:282
92456993825,8cyclictest0-21swapper/208:55:262
92456993816,15cyclictest311ktimers/211:20:122
92456993816,15cyclictest311ktimers/211:20:112
9245299388,5cyclictest143877-21apt-get12:10:010
92452993832,3cyclictest167350irq/118-8000000.ethernet-tx008:25:160
92452993832,3cyclictest167350irq/118-8000000.ethernet-tx008:25:160
92452993829,6cyclictest0-21swapper/012:00:220
92452993829,6cyclictest0-21swapper/012:00:220
92452993827,7cyclictest139558-21grep11:40:300
92452993826,9cyclictest1283-21cron12:30:000
92452993826,9cyclictest1283-21cron12:30:000
9245299381,4cyclictest0-21swapper/007:10:240
9245299381,35cyclictest0-21swapper/011:34:300
9245299381,31cyclictest118601-21sort09:40:010
92456993730,4cyclictest101310-21sendmail08:00:002
92456993729,5cyclictest143043-21munin-plugin-st12:05:002
92456993729,5cyclictest143043-21munin-plugin-st12:04:592
92456993728,6cyclictest30-21rcuc/211:15:272
92456993726,6cyclictest96989-21grep07:30:262
92456993723,7cyclictest0-21swapper/211:15:022
9245699372,31cyclictest30-21rcuc/208:25:282
9245699372,31cyclictest30-21rcuc/208:25:282
9245699371,33cyclictest0-21swapper/207:35:212
9245699371,28cyclictest0-21swapper/209:50:192
92454993722,9cyclictest0-21swapper/109:55:211
92452993731,4cyclictest0-21swapper/009:40:270
92452993730,4cyclictest0-21swapper/010:40:170
9245299370,35cyclictest0-21swapper/007:15:170
9245299370,35cyclictest0-21swapper/007:15:170
92456993625,7cyclictest0-21swapper/207:20:272
92456993623,9cyclictest0-21swapper/209:20:272
92454993620,8cyclictest0-21swapper/111:30:261
92454993615,5cyclictest231ktimers/110:50:111
92452993630,4cyclictest0-21swapper/008:35:190
9245299361,4cyclictest0-21swapper/011:45:190
9245299361,33cyclictest0-21swapper/009:07:080
92456993525,5cyclictest0-21swapper/209:40:282
92456993525,5cyclictest0-21swapper/207:10:022
92456993523,7cyclictest126954-21grep10:25:282
92456993523,7cyclictest126954-21grep10:25:282
92454993518,4cyclictest138656-21mailstats11:35:271
92456993423,7cyclictest107210-21grep08:30:282
92456993421,8cyclictest136489-21munin-node11:25:112
9245699341,4cyclictest140396-21unixbench_multi11:45:272
9245699334,27cyclictest0-21swapper/208:35:222
92456993323,7cyclictest0-21swapper/212:10:282
92456993320,8cyclictest0-21swapper/208:20:022
92456993320,8cyclictest0-21swapper/208:20:012
92452993327,4cyclictest20850irq/208-8000000.ethernet12:10:240
92456993223,7cyclictest148547-21sh12:35:192
92456993223,4cyclictest0-21swapper/209:00:222
92456993222,6cyclictest0-21swapper/207:25:262
92454993221,8cyclictest0-21swapper/112:05:281
9245699318,13cyclictest147545-21/usr/sbin/munin12:30:172
92456993121,6cyclictest0-21swapper/207:45:282
92456993121,5cyclictest142086-21grep11:55:282
92456993119,7cyclictest0-21swapper/207:40:262
92456993111,14cyclictest311ktimers/210:45:132
92456993022,5cyclictest0-21swapper/210:55:182
92456993022,4cyclictest0-21swapper/211:40:312
92456993021,7cyclictest0-21swapper/211:40:012
9245699301,4cyclictest110413-21kernelversion08:50:232
9245699301,27cyclictest0-21swapper/209:05:172
92456992921,4cyclictest0-21swapper/212:15:272
92456992921,4cyclictest0-21swapper/209:15:262
92456992918,7cyclictest0-21swapper/208:05:282
92456992917,9cyclictest0-21swapper/210:10:002
92456992818,7cyclictest0-21swapper/210:00:282
92456992818,7cyclictest0-21swapper/207:50:262
92454992817,8cyclictest231ktimers/107:20:211
92456992720,4cyclictest0-21swapper/212:25:192
92456992720,4cyclictest0-21swapper/212:25:192
92456992717,7cyclictest0-21swapper/209:45:192
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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