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2026-06-28 - 20:49

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 Sun Jun 28, 2026 12:44:51)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
587846999490,2cyclictest0-21swapper/012:15:010
58784699651,61cyclictest0-21swapper/008:45:150
58784699626,14cyclictest588796-21munin-node07:15:020
58784699615,18cyclictest15-21rcuc/009:45:000
587846995641,11cyclictest612022-21apt-key09:30:010
587848995546,5cyclictest615300-21grep09:45:281
587846995141,6cyclictest167350irq/118-8000000.ethernet-tx012:15:240
587850995032,12cyclictest311ktimers/207:45:152
587850994940,6cyclictest622232-21munin-plugin-st10:29:592
587846994943,4cyclictest0-21swapper/010:20:100
587846994940,5cyclictest615387-21munin-plugin-st09:50:010
587850994837,8cyclictest0-21swapper/210:05:012
587850994837,8cyclictest0-21swapper/210:05:002
587846994840,4cyclictest167350irq/118-8000000.ethernet-tx011:25:230
587846994840,4cyclictest167350irq/118-8000000.ethernet-tx007:15:170
587850994733,9cyclictest0-21swapper/210:35:292
587848994738,5cyclictest641075-21run-parts12:20:001
58784699478,29cyclictest0-21swapper/010:05:180
587846994735,9cyclictest590640-21munin-plugin-st07:25:000
58784699473,13cyclictest15-21rcuc/008:40:010
58784699473,13cyclictest15-21rcuc/008:40:010
587848994635,6cyclictest0-21swapper/109:40:011
587848994635,6cyclictest0-21swapper/109:40:001
587848994632,9cyclictest231ktimers/109:20:131
587846994618,25cyclictest0-21swapper/009:10:020
587850994537,4cyclictest625539-21unixbench_singl10:45:292
587850994537,4cyclictest625539-21unixbench_singl10:45:292
587850994535,7cyclictest619642-21unixbench_singl10:10:292
587850994533,8cyclictest0-21swapper/211:30:012
587848994537,5cyclictest609383-21munin-plugin-st09:15:001
587846994535,7cyclictest624769-21munin-plugin-st10:45:000
587850994433,6cyclictest0-21swapper/212:10:262
587850994428,11cyclictest311ktimers/207:25:162
587848994431,9cyclictest0-21swapper/109:25:291
587846994435,6cyclictest0-21swapper/009:55:300
587846994434,5cyclictest167350irq/118-8000000.ethernet-tx012:35:260
587846994431,9cyclictest0-21swapper/007:40:300
587846994423,18cyclictest20650irq/252-8000000.ethernet12:25:260
587850994331,9cyclictest0-21swapper/210:30:282
587848994332,7cyclictest0-21swapper/107:40:001
587848994331,7cyclictest628090-21grep11:00:291
587846994336,4cyclictest0-21swapper/010:00:270
587846994336,4cyclictest0-21swapper/010:00:270
587846994331,8cyclictest0-21swapper/010:55:260
587850994235,4cyclictest0-21swapper/209:45:172
587846994234,4cyclictest167350irq/118-8000000.ethernet-tx009:10:220
587846994234,3cyclictest0-21swapper/010:35:020
587846994233,5cyclictest598214-21grep08:05:270
587846994230,8cyclictest0-21swapper/010:50:000
587846994230,8cyclictest0-21swapper/010:50:000
587846994229,8cyclictest0-21swapper/008:50:260
58784699421,2cyclictest0-21swapper/011:50:020
587850994135,3cyclictest593177-21sshd07:40:002
587850994133,5cyclictest0-21swapper/208:00:002
587850994131,5cyclictest614461-21grep09:40:292
587850994129,6cyclictest604996-21grep08:45:302
587848994132,5cyclictest0-21swapper/112:25:311
587848994131,6cyclictest0-21swapper/109:55:291
587848994129,8cyclictest0-21swapper/111:50:001
587848994128,9cyclictest0-21swapper/110:05:251
587848994126,8cyclictest644362-21grep12:35:291
587848994126,12cyclictest587840-21cyclictest09:15:141
587848994124,9cyclictest0-21swapper/109:40:301
587846994135,4cyclictest602536-21munin-run08:35:010
587846994133,5cyclictest619692-21munin-plugin-st10:15:000
587846994128,10cyclictest0-21swapper/010:15:270
587846994125,11cyclictest0-21swapper/008:55:210
587850994033,4cyclictest598320-21munin-plugin-st08:10:012
587850994032,4cyclictest0-21swapper/208:15:252
587850994031,7cyclictest616222-21sh09:55:002
587850994031,4cyclictest0-21swapper/207:45:012
587850994028,9cyclictest588564-21unixbench_multi07:10:302
587848994031,5cyclictest599053-21grep08:10:281
587848994031,4cyclictest0-21swapper/108:50:261
587848994029,7cyclictest0-21swapper/110:30:291
587848994027,8cyclictest0-21swapper/107:55:281
587846994033,4cyclictest167350irq/118-8000000.ethernet-tx007:50:230
587846994028,8cyclictest0-21swapper/012:20:270
587846994028,8cyclictest0-21swapper/012:20:270
587846994021,16cyclictest131ktimers/008:40:130
58784699401,37cyclictest0-21swapper/012:00:000
587850993931,5cyclictest0-21swapper/210:15:272
587850993929,5cyclictest0-21swapper/210:55:252
587850993926,9cyclictest0-21swapper/208:40:292
587848993932,4cyclictest167450irq/126-8000000.ethernet-tx108:45:131
587848993930,4cyclictest0-21swapper/110:50:281
587848993929,6cyclictest0-21swapper/107:10:301
587848993929,4cyclictest0-21swapper/107:25:001
587848993923,10cyclictest0-21swapper/111:35:281
587848993923,10cyclictest0-21swapper/111:35:281
587848993922,10cyclictest0-21swapper/109:10:011
587846993933,4cyclictest0-21swapper/008:10:160
587846993929,5cyclictest0-21swapper/008:00:010
587846993916,20cyclictest0-21swapper/009:30:110
58784699391,35cyclictest0-21swapper/007:45:130
587850993832,3cyclictest634809-21proc_pri11:40:252
587850993830,6cyclictest600771-21grep08:20:282
587850993813,14cyclictest167550irq/134-8000000.ethernet-tx211:50:092
58785099381,11cyclictest638076-21irqstats12:00:242
58785099381,11cyclictest638076-21irqstats12:00:242
587850993811,14cyclictest311ktimers/212:05:122
587848993829,6cyclictest602480-21unixbench_singl08:30:291
587848993828,6cyclictest636699-21grep11:50:271
587848993824,10cyclictest0-21swapper/112:05:271
587848993823,8cyclictest0-21swapper/111:15:251
58784699383,5cyclictest633280-21grep11:30:300
58784699383,5cyclictest627668-21tune2fs11:00:210
587846993833,2cyclictest0-21swapper/007:25:240
587846993831,4cyclictest20850irq/208-8000000.ethernet07:40:000
587846993830,4cyclictest20650irq/252-8000000.ethernet11:15:320
587846993828,7cyclictest0-21swapper/008:20:280
587846993826,8cyclictest0-21swapper/007:30:290
58784699381,35cyclictest0-21swapper/010:50:100
58784699381,35cyclictest0-21swapper/009:20:250
58784699381,35cyclictest0-21swapper/009:00:190
58784699381,35cyclictest0-21swapper/009:00:190
58784699381,2cyclictest629272-21apt-get11:10:130
58784699381,2cyclictest629272-21apt-get11:10:120
58784699381,2cyclictest0-21swapper/011:25:010
587850993729,4cyclictest0-21swapper/212:30:192
587850993728,4cyclictest0-21swapper/210:20:182
587850993727,5cyclictest606650-21grep08:55:302
587850993726,7cyclictest0-21swapper/210:40:292
587848993729,4cyclictest640226-21munin-run12:15:011
587848993727,7cyclictest627223-21grep10:55:271
587848993726,8cyclictest637492-21grep11:55:271
587848993726,6cyclictest593920-21grep07:40:291
587848993725,9cyclictest0-21swapper/108:20:011
587848993724,8cyclictest0-21swapper/111:30:311
587846993731,3cyclictest638957-21memory12:05:250
587846993730,4cyclictest20850irq/208-8000000.ethernet11:05:120
587846993726,7cyclictest0-21swapper/008:15:280
587846993725,7cyclictest0-21swapper/008:00:290
58784699371,2cyclictest0-21swapper/011:55:020
587850993630,3cyclictest0-21swapper/211:16:592
587850993628,5cyclictest637538-21grep11:55:272
587850993628,4cyclictest0-21swapper/209:30:262
587850993627,5cyclictest0-21swapper/209:25:282
587850993626,7cyclictest0-21swapper/211:20:282
587850993625,7cyclictest605860-21grep08:50:262
587850993620,12cyclictest0-21swapper/211:00:282
587848993628,4cyclictest628902-21grep11:05:291
587848993626,5cyclictest0-21swapper/110:10:191
587848993625,8cyclictest0-21swapper/107:25:291
587848993623,8cyclictest0-21swapper/109:30:251
587848993623,11cyclictest606763-21sendmail09:00:011
587846993628,5cyclictest0-21swapper/012:30:260
587846993627,6cyclictest0-21swapper/009:15:280
58784699362,5cyclictest0-21swapper/012:00:010
58784699362,5cyclictest0-21swapper/012:00:010
587846993625,7cyclictest0-21swapper/009:50:280
58784699361,33cyclictest0-21swapper/011:40:250
587850993529,4cyclictest610230-21sendmail09:20:002
587850993526,6cyclictest642668-21grep12:25:312
587850993526,6cyclictest1261-21rs:main2
587850993523,8cyclictest0-21swapper/208:40:012
587850993523,8cyclictest0-21swapper/208:40:012
58784899354,16cyclictest604399-21latency_hist08:45:011
587848993527,5cyclictest629830-21grep11:10:291
587848993527,5cyclictest629830-21grep11:10:291
587848993527,4cyclictest0-21swapper/111:25:201
587848993526,5cyclictest625508-21grep10:45:281
587848993526,5cyclictest625508-21grep10:45:281
587848993524,6cyclictest631227-21fschecks_time11:20:191
587848993515,4cyclictest167450irq/126-8000000.ethernet-tx107:50:241
58784699354,14cyclictest0-21swapper/010:35:190
58784699351,32cyclictest0-21swapper/011:37:450
58784699351,32cyclictest0-21swapper/011:37:450
587850993425,5cyclictest0-21swapper/211:05:262
587850993425,4cyclictest0-21swapper/207:15:042
587850993424,7cyclictest0-21swapper/207:20:282
587850993420,10cyclictest311ktimers/211:30:162
587850993414,4cyclictest167550irq/134-8000000.ethernet-tx208:25:102
587850993412,16cyclictest167550irq/134-8000000.ethernet-tx210:50:272
587848993426,5cyclictest607521-21grep09:00:301
587848993426,5cyclictest607521-21grep09:00:291
587848993426,4cyclictest0-21swapper/110:00:281
587848993426,4cyclictest0-21swapper/110:00:281
587848993426,4cyclictest0-21swapper/107:50:011
587848993424,6cyclictest598281-21unixbench_singl08:05:281
587848993423,8cyclictest231ktimers/112:30:251
587848993423,6cyclictest0-21swapper/110:40:211
587848993420,10cyclictest231ktimers/111:40:101
587848993418,8cyclictest0-21swapper/108:35:331
587848993418,8cyclictest0-21swapper/108:35:331
58784899341,26cyclictest591678-21/usr/sbin/munin07:30:181
587846993421,9cyclictest0-21swapper/010:25:290
58785099339,18cyclictest167550irq/134-8000000.ethernet-tx212:15:252
587850993326,4cyclictest644400-21grep12:35:302
587850993324,5cyclictest634106-21unixbench_multi11:35:272
587850993324,5cyclictest634106-21unixbench_multi11:35:272
587850993323,5cyclictest0-21swapper/208:30:282
58785099331,27cyclictest0-21swapper/208:10:202
587848993323,4cyclictest0-21swapper/107:15:211
587848993322,5cyclictest0-21swapper/109:50:201
587848993317,9cyclictest22-21rcuc/112:00:161
587848993317,9cyclictest22-21rcuc/112:00:161
587850993225,4cyclictest0-21swapper/208:00:212
587850993224,6cyclictest641285-21/usr/sbin/munin12:20:202
587850993224,6cyclictest641285-21/usr/sbin/munin12:20:202
587850993222,5cyclictest0-21swapper/207:10:012
587850993217,11cyclictest0-21swapper/211:10:272
587850993217,11cyclictest0-21swapper/211:10:272
587850993212,15cyclictest167550irq/134-8000000.ethernet-tx209:12:242
587850993211,4cyclictest8321systemd-network09:21:502
58784899326,14cyclictest641830-21tail12:20:261
58784899326,14cyclictest641830-21tail12:20:251
587848993226,3cyclictest14-21rcu_preempt10:25:181
587848993226,3cyclictest0-21swapper/108:20:281
587848993220,5cyclictest0-21swapper/110:20:271
587846993226,3cyclictest0-21swapper/009:35:180
587846993226,3cyclictest0-21swapper/009:35:180
587846993223,6cyclictest0-21swapper/008:25:300
587850993123,5cyclictest0-21swapper/211:45:292
587850993119,7cyclictest618682-21grep10:05:292
587848993119,5cyclictest620446-21unixbench_multi10:15:281
587848993118,8cyclictest231ktimers/108:00:101
587850993022,6cyclictest30-21rcuc/209:05:272
587850993021,5cyclictest30-21rcuc/207:50:272
587850993017,9cyclictest607556-21grep09:00:302
587850993017,9cyclictest607556-21grep09:00:302
587848993016,5cyclictest0-21swapper/107:10:011
587848993015,11cyclictest601644-21grep08:25:291
58785099293,15cyclictest613625-21sed09:35:292
58785099293,15cyclictest613625-21sed09:35:282
587850992917,8cyclictest0-21swapper/207:30:282
58784699281,2cyclictest0-21swapper/007:10:010
587848992720,4cyclictest14-21rcu_preempt10:35:211
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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