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2026-03-19 - 19:51

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 Thu Mar 19, 2026 12:44:48)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
363008099733,23cyclictest0-21swapper/108:10:011
363008099712,33cyclictest0-21swapper/110:15:221
3630079997061,2cyclictest0-21swapper/010:35:000
3630080996825,11cyclictest0-21swapper/109:20:211
3630080996823,10cyclictest0-21swapper/108:40:201
3630080996629,6cyclictest0-21swapper/110:05:271
3630080996424,10cyclictest0-21swapper/110:40:261
3630079996416,35cyclictest0-21swapper/007:40:190
363008299633,13cyclictest3665658-21apt-get10:35:012
3630080996226,6cyclictest0-21swapper/107:35:291
3630080996129,25cyclictest3645947-21kworker/u8:1-events_freezable_power_10:35:011
363007999618,26cyclictest20850irq/208-8000000.ethernet12:20:010
363007999618,26cyclictest20850irq/208-8000000.ethernet12:20:010
363008099566,6cyclictest3677743-21gpg-connect-age11:45:021
363008099566,6cyclictest3677743-21gpg-connect-age11:45:021
363008099551,23cyclictest0-21swapper/111:05:021
363008099542,11cyclictest0-21swapper/108:50:001
3630082995033,11cyclictest3632956-21apt-get07:25:022
363008099501,25cyclictest0-21swapper/112:20:021
363008099501,25cyclictest0-21swapper/112:20:011
3630079995033,15cyclictest0-21swapper/010:35:270
3630079995030,4cyclictest3651026-21kworker/u8:2+events_power_efficient09:25:020
3630079994942,4cyclictest167350irq/118-8000000.ethernet-tx012:35:040
3630079994914,32cyclictest0-21swapper/011:40:000
3630082994833,10cyclictest0-21swapper/207:20:012
363008099485,17cyclictest14-21rcu_preempt11:45:021
3630080994836,8cyclictest3642424-21sendmail08:20:001
3630080994735,5cyclictest0-21swapper/109:50:021
363008099473,32cyclictest22-21rcuc/111:00:001
363007999479,34cyclictest15-21rcuc/008:15:000
363007999472,7cyclictest3655325-21users09:30:270
363007999472,7cyclictest3655325-21users09:30:270
3630079994715,29cyclictest15-21rcuc/012:15:010
363007999471,10cyclictest3660375-21ptp4l10:00:280
3630079994634,9cyclictest3673348-21sendmail11:20:010
363007999462,38cyclictest0-21swapper/010:30:010
363007999461,40cyclictest3663309-21grep10:20:010
363007999451,39cyclictest0-21swapper/011:30:010
3630082994437,4cyclictest3680204-21apt-get12:00:002
3630082994436,5cyclictest3648505-21munin-plugin-st08:55:012
3630082994435,5cyclictest0-21swapper/209:05:292
363008299441,29cyclictest0-21swapper/211:40:012
3630079994436,4cyclictest0-21swapper/012:35:020
363007999443,5cyclictest3675501-21irqstats11:30:210
363007999443,5cyclictest3675501-21irqstats11:30:210
3630079994428,14cyclictest167350irq/118-8000000.ethernet-tx008:00:260
363008299435,22cyclictest30-21rcuc/212:15:022
3630082994329,9cyclictest0-21swapper/209:25:192
363008299431,26cyclictest0-21swapper/211:55:002
363008299431,23cyclictest0-21swapper/210:50:012
363007999439,13cyclictest3633124-21rm07:25:010
363007999434,36cyclictest3643321-21grep08:20:270
3630079994322,19cyclictest20650irq/252-8000000.ethernet12:00:120
363007999431,40cyclictest0-21swapper/010:20:110
363007999431,39cyclictest131ktimers/009:10:270
3630082994233,6cyclictest3649342-21sh09:00:012
3630082994231,8cyclictest0-21swapper/210:45:002
3630082994230,8cyclictest3652830-21sendmail09:20:002
363008099428,11cyclictest3655351-21apt-get09:35:011
363008099428,11cyclictest3655351-21apt-get09:35:011
3630080994230,8cyclictest0-21swapper/112:00:011
363007999423,37cyclictest0-21swapper/009:35:240
3630079994231,6cyclictest0-21swapper/008:35:290
363007999423,10cyclictest0-21swapper/007:15:010
363007999421,39cyclictest3648420-21unixbench_multi08:50:270
363008299415,8cyclictest30-21rcuc/208:15:012
3630082994128,8cyclictest0-21swapper/210:00:292
3630082994128,8cyclictest0-21swapper/207:55:272
3630082994127,9cyclictest0-21swapper/211:10:252
363008299411,4cyclictest0-21swapper/211:20:012
363008299411,2cyclictest0-21swapper/207:10:012
363008099418,11cyclictest3630903-21munin-node07:15:011
363008099415,16cyclictest3655351-21apt-get09:35:011
3630080994130,7cyclictest3643304-21grep08:20:281
3630080994124,10cyclictest0-21swapper/112:20:201
363008099411,5cyclictest0-21swapper/110:00:011
363008099411,5cyclictest0-21swapper/110:00:011
363007999414,25cyclictest15-21rcuc/011:15:000
3630079994134,4cyclictest20650irq/252-8000000.ethernet08:05:110
363007999412,37cyclictest0-21swapper/008:30:250
3630079994123,16cyclictest0-21swapper/012:25:000
3630082994032,4cyclictest311ktimers/209:50:012
3630082994031,6cyclictest3647577-21grep08:45:282
3630082994030,6cyclictest0-21swapper/208:00:272
3630082994026,10cyclictest0-21swapper/207:30:242
3630082994025,10cyclictest0-21swapper/209:40:262
3630080994033,4cyclictest0-21swapper/107:15:291
3630080994028,8cyclictest0-21swapper/112:35:011
3630080994010,12cyclictest3668486-21/usr/sbin/munin10:50:201
3630080994010,12cyclictest3668486-21/usr/sbin/munin10:50:201
3630079994034,2cyclictest0-21swapper/009:00:020
3630079994032,4cyclictest167350irq/118-8000000.ethernet-tx011:05:150
363007999402,7cyclictest3685139-21ptp4l-jitter12:25:260
3630079994026,9cyclictest0-21swapper/009:25:250
363007999402,4cyclictest3678166-21meminfo11:45:230
363007999402,36cyclictest0-21swapper/010:55:280
363007999401,37cyclictest0-21swapper/009:00:240
363007999401,27cyclictest0-21swapper/011:55:010
363007999401,11cyclictest3661478-21latency_hist10:10:000
3630082993925,8cyclictest0-21swapper/211:10:012
363008299391,29cyclictest0-21swapper/210:55:022
363008299391,29cyclictest0-21swapper/210:55:022
3630080993928,5cyclictest0-21swapper/110:25:281
3630080993927,8cyclictest0-21swapper/110:40:001
3630080993925,8cyclictest0-21swapper/107:20:271
3630079993931,4cyclictest20850irq/208-8000000.ethernet08:20:010
3630079993928,7cyclictest3647579-21unixbench_multi08:45:280
363007999391,4cyclictest3668259-21users10:45:280
363007999391,36cyclictest0-21swapper/011:55:120
363007999391,36cyclictest0-21swapper/009:05:130
3630082993830,4cyclictest0-21swapper/212:00:262
3630082993830,4cyclictest0-21swapper/209:20:172
363008299381,30cyclictest3644483-21/usr/sbin/munin08:30:182
3630080993830,5cyclictest0-21swapper/111:20:271
3630079993834,2cyclictest0-21swapper/007:50:270
3630079993832,4cyclictest0-21swapper/007:55:220
3630079993828,7cyclictest0-21swapper/009:40:280
363007999381,4cyclictest0-21swapper/007:35:220
363007999381,3cyclictest3631547-21perl07:15:210
363007999381,35cyclictest0-21swapper/009:15:170
363007999381,2cyclictest0-21swapper/007:30:180
3630082993728,6cyclictest3685297-21grep12:25:272
3630082993726,5cyclictest0-21swapper/211:45:012
3630082993726,5cyclictest0-21swapper/211:45:002
3630082993724,5cyclictest0-21swapper/207:25:302
3630079993731,4cyclictest20850irq/208-8000000.ethernet10:40:250
3630079993731,4cyclictest20850irq/208-8000000.ethernet10:10:180
3630079993731,4cyclictest0-21swapper/007:25:170
363007999371,4cyclictest0-21swapper/009:55:000
363007999371,34cyclictest0-21swapper/012:07:430
363007999371,34cyclictest0-21swapper/011:40:100
363007999371,34cyclictest0-21swapper/011:40:100
363007999371,34cyclictest0-21swapper/009:45:140
363007999371,34cyclictest0-21swapper/008:28:200
3630082993622,9cyclictest0-21swapper/212:20:232
3630082993622,8cyclictest3681334-21/usr/sbin/munin12:05:232
3630080993626,6cyclictest3633885-21munin-plugin-st07:30:001
3630080993626,5cyclictest0-21swapper/109:25:281
3630080993625,6cyclictest0-21swapper/109:10:021
363007999361,33cyclictest0-21swapper/010:50:180
363007999361,33cyclictest0-21swapper/010:50:180
363007999361,2cyclictest0-21swapper/008:40:170
3630082993525,6cyclictest3638128-21grep07:50:282
3630082993525,5cyclictest0-21swapper/212:35:182
3630082993522,8cyclictest0-21swapper/208:20:182
3630082993522,7cyclictest3646816-21cron08:45:002
3630082993519,12cyclictest311ktimers/212:30:122
363008299351,2cyclictest0-21swapper/210:30:022
363008299351,2cyclictest0-21swapper/210:20:012
3630080993527,4cyclictest0-21swapper/112:10:271
3630080993526,4cyclictest0-21swapper/108:30:001
363007999351,4cyclictest0-21swapper/011:23:180
363007999351,32cyclictest0-21swapper/009:55:270
363007999351,32cyclictest0-21swapper/009:55:260
3630082993427,4cyclictest0-21swapper/209:10:192
3630082993426,5cyclictest0-21swapper/208:25:282
3630082993424,7cyclictest3650169-21grep09:00:292
3630082993421,7cyclictest3675781-21grep11:30:272
3630082993421,7cyclictest3675781-21grep11:30:262
3630082993420,7cyclictest0-21swapper/211:25:272
3630080993425,5cyclictest3673233-21grep11:15:281
3630080993424,5cyclictest0-21swapper/107:30:251
3630080993422,7cyclictest0-21swapper/107:50:281
363008099341,30cyclictest3638967-21grep07:55:271
363008099341,27cyclictest0-21swapper/112:00:241
3630082993326,4cyclictest167550irq/134-8000000.ethernet-tx209:55:142
3630082993326,4cyclictest167550irq/134-8000000.ethernet-tx209:55:142
3630082993314,16cyclictest167550irq/134-8000000.ethernet-tx209:53:362
363008099336,22cyclictest3684714-21/usr/sbin/munin12:25:191
3630080993325,4cyclictest0-21swapper/109:45:001
3630080993324,5cyclictest0-21swapper/107:40:161
3630079993326,5cyclictest3670183-21/usr/sbin/munin11:00:260
3630082993225,5cyclictest311ktimers/209:35:192
3630082993225,4cyclictest167550irq/134-8000000.ethernet-tx208:05:222
3630082993224,4cyclictest0-21swapper/210:10:272
3630082993222,6cyclictest0-21swapper/210:05:272
3630082993219,9cyclictest0-21swapper/211:15:172
3630082993218,9cyclictest311ktimers/209:35:022
3630082993218,9cyclictest311ktimers/209:35:012
3630082993214,13cyclictest311ktimers/207:45:132
3630080993223,6cyclictest1653-21lldpd09:50:231
363008099322,28cyclictest3652748-21grep09:15:281
3630080993219,10cyclictest0-21swapper/108:55:271
363007999321,6cyclictest3636626-21dpkg07:45:130
363008099317,15cyclictest3659963-21/usr/sbin/munin10:00:201
3630080993116,10cyclictest0-21swapper/111:05:281
363008099311,28cyclictest3639244-21/usr/sbin/munin08:00:211
363008099311,25cyclictest3637428-21latency_hist07:50:011
363008299306,20cyclictest30-21rcuc/208:35:112
3630082993014,9cyclictest0-21swapper/208:20:012
3630082993011,16cyclictest167550irq/134-8000000.ethernet-tx210:59:312
3630080993023,4cyclictest0-21swapper/111:30:201
3630080993023,4cyclictest0-21swapper/111:30:201
3630080993019,8cyclictest0-21swapper/109:05:001
363008099301,3cyclictest0-21swapper/108:35:241
3630082992923,4cyclictest3683649-21cron12:20:012
3630082992923,4cyclictest3683649-21cron12:20:012
3630082992922,4cyclictest0-21swapper/211:45:152
3630082992917,8cyclictest0-21swapper/211:00:262
3630082992915,8cyclictest0-21swapper/207:15:012
3630080992922,5cyclictest274-21systemd-journal12:40:001
3630080992915,10cyclictest274-21systemd-journal08:55:001
3630080992912,12cyclictest231ktimers/111:35:111
3630082992819,6cyclictest3663004-21grep10:15:282
363008299281,2cyclictest0-21swapper/207:35:012
3630080992822,4cyclictest0-21swapper/108:10:201
363008099281,5cyclictest0-21swapper/109:15:011
363008099281,25cyclictest0-21swapper/110:20:261
363008099281,25cyclictest0-21swapper/110:10:161
3630082992719,4cyclictest0-21swapper/207:40:262
3630080992721,4cyclictest0-21swapper/112:05:561
3630080992718,6cyclictest3668374-21grep10:50:001
3630080992616,7cyclictest3674933-21grep11:25:271
3630080992615,7cyclictest0-21swapper/111:50:261
363008099261,4cyclictest0-21swapper/111:15:011
3630082992512,9cyclictest167550irq/134-8000000.ethernet-tx210:27:182
3630080992518,5cyclictest1660-21snmpd08:32:461
3630079992211,8cyclictest0-21swapper/007:10:010
363008099174,10cyclictest0-21swapper/107:10:011
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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