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2026-07-19 - 18:11

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 Jul 19, 2026 12:44:47)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2348208996928,5cyclictest0-21swapper/010:30:310
2348208996732,30cyclictest2356993-21grep07:55:290
2348208996356,5cyclictest0-21swapper/009:00:130
234821099613,15cyclictest0-21swapper/112:30:011
2348208996054,3cyclictest0-21swapper/008:30:120
2348212995950,4cyclictest311ktimers/208:50:002
2348212995950,4cyclictest311ktimers/208:50:002
2348212995846,8cyclictest2402122-21munin-plugin-st12:25:002
2348212995447,5cyclictest311ktimers/212:00:012
2348212995441,9cyclictest2362991-21apt-get08:35:012
2348212995340,10cyclictest311ktimers/207:10:152
2348212995340,10cyclictest311ktimers/207:10:152
2348208995342,7cyclictest0-21swapper/012:10:000
2348210995238,8cyclictest0-21swapper/109:35:011
2348210995237,10cyclictest231ktimers/110:25:131
2348210995237,10cyclictest231ktimers/110:25:121
2348212995139,7cyclictest0-21swapper/209:35:312
234820899514,44cyclictest2367261-21unixbench_singl08:55:310
234820899506,41cyclictest0-21swapper/010:10:200
2348212994836,8cyclictest2359577-21grep08:10:292
2348210994827,13cyclictest231ktimers/108:35:111
2348208994841,4cyclictest0-21swapper/008:35:100
2348208994841,2cyclictest0-21swapper/009:30:010
234820899482,43cyclictest2380788-21grep10:15:270
2348212994732,8cyclictest0-21swapper/207:30:302
2348212994730,11cyclictest311ktimers/210:50:122
2348208994739,5cyclictest2352681-21munin-plugin-st07:35:000
2348208994739,5cyclictest0-21swapper/011:20:250
2348208994739,5cyclictest0-21swapper/011:20:240
234820899473,8cyclictest2386811-21cron10:54:590
2348208994735,8cyclictest0-21swapper/012:25:300
2348208994731,12cyclictest2353520-21tail07:35:280
2348208994721,23cyclictest15-21rcuc/011:50:010
2348208994639,4cyclictest12-21ksoftirqd/010:20:220
234820899463,39cyclictest0-21swapper/009:30:170
2348208994632,8cyclictest2385038-21grep10:40:280
2348212994540,3cyclictest311ktimers/208:55:132
234820899453,5cyclictest2404613-21users12:35:290
2348208994534,7cyclictest2395300-21grep11:40:290
2348208994532,7cyclictest2379164-21grep10:05:270
2348210994432,8cyclictest2392592-21mailstats11:25:311
2348210994432,8cyclictest2375851-21munin-plugin-st09:50:001
2348210994432,8cyclictest2350150-21sendmail07:20:001
2348208994433,6cyclictest2384287-21munin-run10:39:590
2348208994432,7cyclictest2389285-21grep11:05:290
2348208994428,12cyclictest0-21swapper/011:15:290
2348212994332,6cyclictest0-21swapper/212:15:012
2348212994331,8cyclictest2392687-21grep11:25:322
2348212994330,9cyclictest0-21swapper/209:10:282
234821099436,30cyclictest832-21systemd-network07:14:501
234821099436,30cyclictest832-21systemd-network07:14:501
2348210994333,6cyclictest0-21swapper/107:40:001
2348210994332,7cyclictest2355557-21grep07:50:021
234820899434,5cyclictest0-21swapper/010:55:280
234820899433,9cyclictest2397779-21tail11:55:290
2348208994336,4cyclictest20650irq/252-8000000.ethernet08:15:240
2348208994329,9cyclictest0-21swapper/011:40:010
2348208994329,6cyclictest0-21swapper/008:45:280
2348208994329,6cyclictest0-21swapper/008:45:280
2348208994327,13cyclictest2349115-21latency_hist07:15:010
2348208994327,13cyclictest2349115-21latency_hist07:15:010
234820899432,4cyclictest2362267-21sed08:30:000
2348208994324,15cyclictest2350135-21cron07:20:020
234820899432,3cyclictest0-21swapper/009:45:010
234820899431,4cyclictest2364780-21munin-run08:45:010
2348212994232,6cyclictest2368079-21grep09:00:292
2348212994226,12cyclictest311ktimers/211:20:152
2348212994226,12cyclictest311ktimers/211:20:152
2348210994232,5cyclictest2369738-21grep09:10:281
2348208994231,8cyclictest2350151-21sendmail07:20:000
2348208994231,7cyclictest2400381-21grep12:10:280
2348208994230,6cyclictest2365918-21cut08:50:180
2348208994229,9cyclictest0-21swapper/008:20:270
2348208994229,9cyclictest0-21swapper/008:20:270
2348208994226,11cyclictest131ktimers/008:10:160
2348208994218,21cyclictest2354771-21tune2fs07:45:200
234820899421,4cyclictest2377193-21memory09:55:260
234820899421,39cyclictest131ktimers/012:00:210
234820899421,39cyclictest0-21swapper/009:10:200
2348212994135,4cyclictest2358715-21unixbench_singl08:05:302
234821299410,23cyclictest0-21swapper/208:30:012
234821099419,17cyclictest0-21swapper/109:00:001
234821099417,16cyclictest24-21ksoftirqd/111:15:011
2348210994128,9cyclictest0-21swapper/108:35:021
2348210994127,10cyclictest231ktimers/109:25:151
2348210994123,11cyclictest0-21swapper/111:40:011
2348208994135,4cyclictest0-21swapper/011:00:100
2348208994133,5cyclictest0-21swapper/012:35:020
234820899412,37cyclictest0-21swapper/011:25:290
2348208994116,17cyclictest0-21swapper/012:25:010
234820899411,5cyclictest2353886-21df07:40:170
234820899411,38cyclictest0-21swapper/009:15:180
2348212994032,4cyclictest0-21swapper/207:35:212
2348212994031,5cyclictest2375801-21grep09:45:312
2348212994028,9cyclictest0-21swapper/210:35:292
2348212994023,13cyclictest311ktimers/211:15:122
2348210994033,5cyclictest231ktimers/110:00:131
2348210994027,9cyclictest231ktimers/109:40:111
2348210994027,9cyclictest0-21swapper/109:55:291
2348210994027,9cyclictest0-21swapper/108:10:291
2348210994025,9cyclictest0-21swapper/108:45:291
2348210994025,9cyclictest0-21swapper/108:45:281
2348210994024,10cyclictest0-21swapper/111:00:261
234821099401,22cyclictest0-21swapper/108:10:011
2348208994034,2cyclictest0-21swapper/010:05:010
2348208994033,4cyclictest0-21swapper/011:10:290
2348208994032,4cyclictest0-21swapper/009:50:010
234820899402,35cyclictest0-21swapper/007:50:290
2348212993924,8cyclictest0-21swapper/210:25:292
2348212993924,8cyclictest0-21swapper/210:25:292
2348212993922,10cyclictest0-21swapper/207:55:292
2348210993926,8cyclictest0-21swapper/108:50:261
2348210993924,10cyclictest0-21swapper/111:50:201
2348210993915,14cyclictest231ktimers/110:40:141
2348208993930,6cyclictest2368911-21grep09:05:280
2348208993929,7cyclictest2351833-21cron07:30:010
2348208993928,6cyclictest0-21swapper/009:50:180
2348208993922,15cyclictest0-21swapper/012:15:230
2348208993922,15cyclictest0-21swapper/012:15:230
234820899391,36cyclictest0-21swapper/009:20:120
2348212993825,9cyclictest311ktimers/212:30:152
2348212993823,9cyclictest14-21rcu_preempt11:45:272
2348212993823,5cyclictest0-21swapper/211:05:282
2348212993823,10cyclictest0-21swapper/210:00:292
2348212993812,11cyclictest311ktimers/211:15:012
2348210993830,5cyclictest2364715-21sed08:40:301
2348210993830,4cyclictest2384232-21grep10:35:281
2348210993826,8cyclictest0-21swapper/107:40:291
2348210993820,9cyclictest22-21rcuc/111:35:011
234821099381,25cyclictest0-21swapper/108:00:021
234820899382,33cyclictest0-21swapper/009:40:010
234820899381,35cyclictest0-21swapper/011:30:230
2348212993729,4cyclictest0-21swapper/211:55:292
2348212993728,4cyclictest2362991-21apt-get08:35:052
2348212993726,8cyclictest311ktimers/212:15:132
2348212993726,8cyclictest311ktimers/212:15:132
2348212993723,7cyclictest0-21swapper/210:45:302
234821299371,32cyclictest0-21swapper/211:45:002
2348210993724,8cyclictest0-21swapper/111:15:281
2348210993722,11cyclictest2352038-21/usr/sbin/munin07:30:261
2348212993628,5cyclictest2348203-21cyclictest09:40:252
2348212993627,5cyclictest0-21swapper/208:00:282
2348212993622,9cyclictest0-21swapper/207:10:012
2348212993621,11cyclictest311ktimers/209:20:142
2348212993621,10cyclictest0-21swapper/210:20:252
2348212993618,11cyclictest0-21swapper/212:35:272
2348210993628,5cyclictest14-21rcu_preempt10:30:281
2348210993621,10cyclictest2381715-21grep10:20:291
234820899361,33cyclictest0-21swapper/011:50:090
234820899361,33cyclictest0-21swapper/008:05:150
234820899361,33cyclictest0-21swapper/008:00:230
2348212993526,5cyclictest2373229-21grep09:30:282
234821299351,8cyclictest0-21swapper/207:25:012
2348210993526,5cyclictest0-21swapper/109:50:191
2348210993526,4cyclictest0-21swapper/111:40:291
2348210993524,8cyclictest2351841-21munin-plugin-st07:30:001
2348210993519,13cyclictest231ktimers/112:30:141
2348208993529,4cyclictest20850irq/208-8000000.ethernet10:45:180
2348212993427,5cyclictest311ktimers/210:55:282
2348212993424,5cyclictest0-21swapper/211:00:272
2348212993422,9cyclictest0-21swapper/212:30:012
2348212993414,15cyclictest311ktimers/207:25:122
2348210993426,4cyclictest0-21swapper/108:25:291
2348210993423,7cyclictest0-21swapper/112:00:281
2348212993326,5cyclictest14-21rcu_preempt09:25:262
2348212993326,4cyclictest51-21kcompactd010:40:212
2348212993323,6cyclictest0-21swapper/210:15:262
2348210993326,5cyclictest231ktimers/108:20:111
2348210993326,5cyclictest231ktimers/108:20:111
2348210993324,5cyclictest0-21swapper/110:45:291
2348210993322,7cyclictest0-21swapper/111:20:201
2348210993322,7cyclictest0-21swapper/111:20:201
2348210993321,9cyclictest0-21swapper/112:35:291
2348210993319,11cyclictest231ktimers/112:05:141
234821099331,4cyclictest0-21swapper/112:15:221
234821099331,4cyclictest0-21swapper/112:15:221
2348210993311,15cyclictest167450irq/126-8000000.ethernet-tx110:14:321
2348212993226,4cyclictest14-21rcu_preempt07:15:312
2348212993224,6cyclictest0-21swapper/211:30:282
2348212993218,10cyclictest311ktimers/210:05:132
234821099322,19cyclictest22-21rcuc/112:20:121
2348210993213,16cyclictest231ktimers/109:05:291
2348208993228,2cyclictest0-21swapper/007:10:000
2348208993226,4cyclictest0-21swapper/010:25:210
2348208993226,4cyclictest0-21swapper/010:25:210
2348212993125,4cyclictest14-21rcu_preempt08:15:242
2348212993123,5cyclictest2364725-21grep08:40:292
2348212993121,7cyclictest30-21rcuc/211:35:212
2348212993120,8cyclictest0-21swapper/207:50:292
2348212993119,8cyclictest0-21swapper/209:05:282
2348210993125,4cyclictest14-21rcu_preempt09:00:281
2348210993122,5cyclictest0-21swapper/110:55:211
2348210993121,7cyclictest2396132-21grep11:45:291
2348210993120,7cyclictest231ktimers/110:50:111
2348210993117,4cyclictest0-21swapper/112:10:111
2348210993115,11cyclictest0-21swapper/110:15:251
2348210993113,12cyclictest231ktimers/111:05:151
2348212993024,4cyclictest0-21swapper/207:45:182
2348212993019,8cyclictest0-21swapper/210:30:302
2348212993019,6cyclictest0-21swapper/209:55:012
234821299301,23cyclictest0-21swapper/209:15:122
234821099301,3cyclictest0-21swapper/108:05:011
2348212992922,5cyclictest311ktimers/208:50:092
2348212992921,5cyclictest30-21rcuc/211:50:272
2348212992920,6cyclictest0-21swapper/207:40:202
2348212992915,10cyclictest0-21swapper/212:05:292
2348210992922,5cyclictest231ktimers/109:20:191
2348210992917,7cyclictest0-21swapper/107:50:291
2348210992916,9cyclictest0-21swapper/108:15:191
2348210992913,13cyclictest167450irq/126-8000000.ethernet-tx109:15:211
2348212992824,2cyclictest0-21swapper/209:55:212
2348212992823,4cyclictest0-21swapper/208:20:172
2348212992823,4cyclictest0-21swapper/208:20:172
2348210992820,6cyclictest0-21swapper/109:40:001
2348210992816,7cyclictest231ktimers/111:55:111
234821099281,4cyclictest0-21swapper/110:05:191
2348210992811,15cyclictest167450irq/126-8000000.ethernet-tx107:20:181
234821299271,24cyclictest0-21swapper/210:10:282
2348210992719,6cyclictest0-21swapper/107:10:011
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