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2026-04-20 - 19:57

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 Mon Apr 20, 2026 12:44:47)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
257211199664,25cyclictest2596930-21apt-get09:35:012
2572107996639,23cyclictest15-21rcuc/007:20:010
2572107996639,23cyclictest15-21rcuc/007:20:010
2572107996638,4cyclictest2574039-21apt07:20:010
257210799662,32cyclictest15-21rcuc/008:00:010
2572107996332,4cyclictest0-21swapper/010:05:300
257211099577,35cyclictest24-21ksoftirqd/108:00:001
2572107995733,20cyclictest12-21ksoftirqd/009:45:170
2572107995545,6cyclictest0-21swapper/009:00:180
2572111995442,5cyclictest14-21rcu_preempt10:10:012
2572110995245,5cyclictest0-21swapper/107:40:021
2572110995228,12cyclictest22-21rcuc/107:20:011
2572110995228,12cyclictest22-21rcuc/107:20:011
2572111995139,6cyclictest0-21swapper/210:40:282
2572107995138,9cyclictest2620730-21unixbench_multi11:50:290
257210799505,32cyclictest20850irq/208-8000000.ethernet09:25:010
2572110994940,6cyclictest2615788-21apt11:25:011
2572107994938,6cyclictest23850irq/422-mmc107:15:020
2572107994924,18cyclictest131ktimers/012:25:130
2572107994924,18cyclictest131ktimers/012:25:130
2572107994916,29cyclictest0-21swapper/007:50:010
2572110994833,10cyclictest0-21swapper/107:30:291
2572107994841,4cyclictest167350irq/118-8000000.ethernet-tx010:20:240
2572107994840,5cyclictest131ktimers/009:14:120
2572107994833,11cyclictest0-21swapper/010:45:290
2572110994733,9cyclictest0-21swapper/112:35:291
2572110994733,9cyclictest0-21swapper/110:15:281
257210799472,42cyclictest2621323-21kernelversion11:55:230
257210799471,39cyclictest2594552-21latency_hist09:20:020
2572111994638,5cyclictest2606498-21munin-plugin-st10:30:012
2572111994638,5cyclictest2606498-21munin-plugin-st10:30:012
2572110994633,8cyclictest0-21swapper/109:15:291
2572110994631,9cyclictest0-21swapper/112:10:011
257211099463,18cyclictest0-21swapper/107:15:011
257210799469,2cyclictest0-21swapper/009:55:180
2572107994633,8cyclictest2616579-21grep11:25:280
2572107994621,21cyclictest0-21swapper/009:35:020
257210799461,42cyclictest0-21swapper/012:00:110
257210799461,42cyclictest0-21swapper/012:00:110
2572111994528,8cyclictest0-21swapper/208:10:282
2572111994528,10cyclictest2597869-21sendmail09:40:012
2572110994531,8cyclictest2573934-21grep07:15:271
2572110994529,12cyclictest231ktimers/107:40:141
257210799452,35cyclictest2623313-21grep12:05:270
257210799451,38cyclictest0-21swapper/008:20:010
257210799451,38cyclictest0-21swapper/008:20:010
2572111994434,5cyclictest0-21swapper/207:50:282
2572110994435,5cyclictest2583317-21kworker/u8:3+flush-179:9608:25:071
2572110994432,8cyclictest0-21swapper/110:35:311
2572110994432,7cyclictest0-21swapper/109:05:301
2572110994428,9cyclictest0-21swapper/111:25:291
257210799445,6cyclictest2577305-21grep07:35:280
2572107994436,5cyclictest0-21swapper/012:10:290
257210799443,34cyclictest2613247-21latency_hist11:10:010
257210799441,41cyclictest0-21swapper/012:20:110
2572111994339,2cyclictest0-21swapper/207:20:012
2572111994339,2cyclictest0-21swapper/207:20:012
2572110994330,8cyclictest0-21swapper/110:50:291
2572110994325,10cyclictest0-21swapper/112:30:281
2572107994334,5cyclictest0-21swapper/007:40:210
2572107994331,8cyclictest2619952-21grep11:45:290
2572107994329,10cyclictest0-21swapper/010:00:280
2572107994314,27cyclictest0-21swapper/012:30:180
2572111994231,7cyclictest0-21swapper/208:20:272
2572110994229,8cyclictest0-21swapper/111:05:291
2572110994229,7cyclictest0-21swapper/109:10:301
2572110994228,9cyclictest0-21swapper/108:35:291
2572110994226,8cyclictest0-21swapper/109:35:301
257210799423,36cyclictest2598685-21grep09:40:280
257210799422,4cyclictest0-21swapper/008:40:250
257210799421,6cyclictest0-21swapper/009:10:010
257210799421,3cyclictest2610281-21if_err_eth010:50:230
257210799421,39cyclictest0-21swapper/008:33:060
257210799421,39cyclictest0-21swapper/007:25:260
257210799421,36cyclictest0-21swapper/011:40:020
2572111994134,4cyclictest274-21systemd-journal11:00:002
2572111994129,7cyclictest0-21swapper/212:20:272
2572111994128,8cyclictest0-21swapper/207:45:282
2572111994126,11cyclictest0-21swapper/210:20:012
2572111994125,12cyclictest0-21swapper/210:35:302
2572110994126,8cyclictest0-21swapper/108:05:291
2572110994122,8cyclictest0-21swapper/110:25:281
2572110994122,8cyclictest0-21swapper/110:25:281
2572110994114,13cyclictest231ktimers/109:20:151
2572107994135,3cyclictest167350irq/118-8000000.ethernet-tx008:50:110
2572107994134,4cyclictest167350irq/118-8000000.ethernet-tx009:27:220
2572107994131,5cyclictest0-21swapper/010:15:280
2572107994129,9cyclictest131ktimers/008:55:120
2572107994128,9cyclictest0-21swapper/008:10:190
2572107994128,10cyclictest131ktimers/011:20:110
2572111994024,10cyclictest0-21swapper/209:05:022
2572110994029,7cyclictest0-21swapper/110:05:291
2572110994029,7cyclictest0-21swapper/110:00:011
2572110994028,8cyclictest0-21swapper/107:25:281
2572110994026,10cyclictest0-21swapper/111:50:281
257210799406,2cyclictest0-21swapper/010:40:160
2572107994033,3cyclictest2585023-21sshd08:24:110
2572107994032,4cyclictest14-21rcu_preempt10:55:260
257210799402,33cyclictest2624884-21grep12:15:270
257210799401,4cyclictest0-21swapper/007:30:240
257210799401,37cyclictest0-21swapper/009:50:200
257210799401,37cyclictest0-21swapper/009:50:200
2572111993926,9cyclictest311ktimers/211:30:132
2572111993926,9cyclictest2580760-21grep07:55:292
2572110993927,9cyclictest0-21swapper/108:20:011
2572110993927,9cyclictest0-21swapper/108:20:001
2572110993927,8cyclictest0-21swapper/110:00:281
2572110993927,6cyclictest0-21swapper/109:45:001
2572110993924,8cyclictest0-21swapper/108:55:281
2572110993923,11cyclictest231ktimers/110:30:141
257210799397,29cyclictest131ktimers/008:00:270
257210799394,13cyclictest25721041cyclictest08:35:160
2572107993933,4cyclictest0-21swapper/011:00:090
2572111993830,5cyclictest2588498-21munin-plugin-st08:44:592
2572111993829,4cyclictest0-21swapper/212:30:292
2572111993825,9cyclictest0-21swapper/208:05:002
2572110993834,2cyclictest0-21swapper/108:10:021
2572110993829,4cyclictest0-21swapper/112:00:291
2572110993829,4cyclictest0-21swapper/112:00:281
2572110993828,7cyclictest0-21swapper/110:20:281
2572110993828,5cyclictest0-21swapper/109:35:011
2572110993826,8cyclictest0-21swapper/109:50:301
2572110993826,8cyclictest0-21swapper/109:50:301
2572110993825,8cyclictest0-21swapper/108:45:291
2572110993824,9cyclictest2626769-21grep12:25:281
2572110993824,9cyclictest2626769-21grep12:25:281
2572110993822,12cyclictest231ktimers/108:20:141
2572110993817,13cyclictest231ktimers/110:10:121
257211099381,21cyclictest24-21ksoftirqd/111:55:111
2572107993830,5cyclictest0-21swapper/010:35:260
2572107993829,7cyclictest131ktimers/010:10:240
2572107993829,5cyclictest0-21swapper/011:15:280
2572107993829,5cyclictest0-21swapper/010:35:000
2572111993729,5cyclictest0-21swapper/211:35:282
2572111993728,6cyclictest0-21swapper/208:55:292
2572111993727,5cyclictest0-21swapper/210:50:212
2572111993724,9cyclictest0-21swapper/212:05:202
2572111993724,10cyclictest0-21swapper/210:30:262
2572110993727,5cyclictest0-21swapper/109:00:271
2572110993726,7cyclictest0-21swapper/111:00:261
2572110993726,6cyclictest0-21swapper/108:50:281
2572110993725,8cyclictest0-21swapper/111:35:291
2572110993722,9cyclictest2617461-21cron11:35:011
2572107993723,6cyclictest2597807-21grep09:35:300
2572107993722,13cyclictest0-21swapper/012:38:210
257210799371,34cyclictest0-21swapper/011:40:140
257210799371,34cyclictest0-21swapper/008:05:250
2572111993627,7cyclictest2595255-21munin-plugin-st09:24:592
2572111993626,6cyclictest0-21swapper/210:20:292
2572111993625,7cyclictest0-21swapper/209:30:002
257211199362,28cyclictest2619367-21/usr/sbin/munin11:45:112
2572111993619,13cyclictest311ktimers/212:00:152
2572111993619,13cyclictest311ktimers/212:00:152
2572110993627,5cyclictest0-21swapper/107:45:171
2572110993626,7cyclictest0-21swapper/110:55:281
2572110993626,6cyclictest0-21swapper/109:45:311
2572110993624,8cyclictest0-21swapper/112:15:291
2572107993622,10cyclictest131ktimers/011:30:110
257210799361,33cyclictest0-21swapper/008:29:170
2572111993526,7cyclictest2589338-21munin-plugin-st08:50:002
2572110993526,5cyclictest2625894-21grep12:20:281
2572110993526,4cyclictest0-21swapper/111:45:161
2572110993525,7cyclictest0-21swapper/111:40:281
2572110993524,7cyclictest0-21swapper/109:25:291
2572110993523,9cyclictest231ktimers/110:40:121
2572110993522,9cyclictest0-21swapper/108:00:281
2572111993426,4cyclictest0-21swapper/208:05:292
2572111993425,5cyclictest0-21swapper/208:30:282
2572111993425,4cyclictest0-21swapper/211:25:012
2572111993424,7cyclictest2576930-21cut07:35:202
2572111993422,8cyclictest0-21swapper/207:15:252
2572111993420,7cyclictest0-21swapper/211:00:182
2572111993418,10cyclictest0-21swapper/211:05:302
2572110993427,3cyclictest0-21swapper/107:50:261
2572107993427,3cyclictest167350irq/118-8000000.ethernet-tx008:45:240
2572107993413,15cyclictest131ktimers/011:10:130
2572111993325,4cyclictest0-21swapper/207:10:162
2572111993321,9cyclictest311ktimers/208:25:042
2572111993321,9cyclictest0-21swapper/212:15:002
2572111993321,8cyclictest0-21swapper/209:40:212
2572111993319,10cyclictest311ktimers/211:10:132
257211199331,27cyclictest0-21swapper/211:40:162
257211199331,19cyclictest0-21swapper/211:30:002
2572110993321,6cyclictest2609828-21grep10:45:291
2572110993318,10cyclictest0-21swapper/112:15:011
2572107993323,7cyclictest15-21rcuc/010:25:280
2572107993323,7cyclictest15-21rcuc/010:25:280
2572111993225,4cyclictest167550irq/134-8000000.ethernet-tx207:30:142
2572111993225,4cyclictest0-21swapper/212:35:302
2572111993225,3cyclictest0-21swapper/210:00:182
2572111993223,6cyclictest2593750-21/usr/sbin/munin09:15:202
2572111993220,8cyclictest0-21swapper/208:15:292
2572111993220,8cyclictest0-21swapper/208:15:282
2572111993219,9cyclictest0-21swapper/209:45:312
2572111993219,8cyclictest2602475-21/usr/sbin/munin10:05:302
2572111993214,14cyclictest311ktimers/211:55:132
2572110993221,7cyclictest0-21swapper/108:30:281
2572110993220,8cyclictest0-21swapper/111:15:001
2572107993226,3cyclictest0-21swapper/007:50:150
2572111993123,5cyclictest0-21swapper/212:15:262
2572111993123,4cyclictest311ktimers/211:15:182
2572111993119,8cyclictest0-21swapper/209:55:302
257211199311,28cyclictest0-21swapper/212:25:152
257211199311,28cyclictest0-21swapper/212:25:152
2572111993110,13cyclictest2572104-21cyclictest09:50:142
2572111993110,13cyclictest2572104-21cyclictest09:50:132
2572107993115,5cyclictest2246892-1kworker/0:0H+mmc_complete07:10:010
2572111993022,4cyclictest0-21swapper/207:40:202
2572111993020,7cyclictest2609816-21grep10:45:282
2572111993019,8cyclictest2587555-21unixbench_multi08:35:292
257211099301,27cyclictest22-21rcuc/111:15:231
2572111992921,5cyclictest2589538-21/usr/sbin/munin08:50:272
257211199291,26cyclictest0-21swapper/209:10:202
2572110992923,4cyclictest2587859-21/usr/sbin/munin08:40:261
257211199282,2cyclictest2592076-21apt-get09:05:122
2572111992819,5cyclictest0-21swapper/207:25:292
2572111992719,5cyclictest2620843-21cron11:55:012
2572110992516,6cyclictest0-21swapper/107:10:011
257211199223,9cyclictest0-21swapper/207:10:012
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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