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2026-07-20 - 18:15

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 Mon Jul 20, 2026 12:44:46)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3233401995746,8cyclictest0-21swapper/007:25:010
3233405995443,6cyclictest3269466-21run-parts10:40:002
3233405995438,12cyclictest311ktimers/207:55:012
3233402995436,13cyclictest231ktimers/110:05:151
323340199546,35cyclictest15-21rcuc/011:45:010
3233401995436,13cyclictest0-21swapper/009:55:000
3233402995342,6cyclictest3282935-21grep11:55:301
3233402995341,8cyclictest0-21swapper/109:04:591
3233405995245,4cyclictest3287383-21munin-plugin-st12:25:002
3233405995245,4cyclictest3287383-21munin-plugin-st12:25:002
3233401995244,4cyclictest167350irq/118-8000000.ethernet-tx008:40:190
3233402995136,10cyclictest231ktimers/112:00:111
3233401995043,4cyclictest167350irq/118-8000000.ethernet-tx011:05:000
3233401995041,5cyclictest0-21swapper/010:40:140
3233401994839,6cyclictest3277998-21munin-plugin-st11:30:000
3233401994839,6cyclictest3277998-21munin-plugin-st11:30:000
323340599474,7cyclictest14-21rcu_preempt09:40:012
3233405994735,8cyclictest0-21swapper/208:04:592
3233402994740,3cyclictest3243124-21munin-plugin-st08:05:001
3233401994738,5cyclictest0-21swapper/010:45:200
3233401994735,10cyclictest3249026-21munin-plugin-st08:40:000
3233405994638,4cyclictest0-21swapper/208:10:222
3233402994636,6cyclictest3266846-21grep10:20:281
3233402994634,8cyclictest3282168-21grep11:50:291
3233401994639,4cyclictest167350irq/118-8000000.ethernet-tx011:30:190
3233401994636,6cyclictest0-21swapper/010:00:000
3233401994633,10cyclictest3255955-21munin-plugin-st09:20:000
3233405994535,5cyclictest0-21swapper/207:25:022
3233405994533,8cyclictest0-21swapper/208:54:592
3233402994534,6cyclictest3248076-21grep08:30:291
3233401994538,4cyclictest20650irq/252-8000000.ethernet11:15:010
3233401994538,4cyclictest20650irq/252-8000000.ethernet10:20:190
3233401994538,4cyclictest20650irq/252-8000000.ethernet07:40:170
3233405994436,4cyclictest3239649-21cron07:45:002
3233405994429,10cyclictest0-21swapper/208:55:272
3233405994429,10cyclictest0-21swapper/208:55:272
3233402994434,6cyclictest3268559-21grep10:30:291
3233402994434,6cyclictest3268559-21grep10:30:281
3233402994433,7cyclictest3240459-21grep07:45:291
323340299443,34cyclictest3250092-21cat08:45:021
3233402994431,9cyclictest0-21swapper/111:25:281
3233402994431,9cyclictest0-21swapper/111:25:281
3233402994423,8cyclictest0-21swapper/110:50:201
3233401994437,4cyclictest3285678-21latency_hist12:15:010
3233401994436,4cyclictest0-21swapper/008:20:290
3233401994433,8cyclictest3253287-21grep09:00:290
3233401994433,6cyclictest0-21swapper/008:25:280
323340199442,39cyclictest3256697-21sed09:20:290
323340199441,41cyclictest0-21swapper/010:15:150
3233405994335,4cyclictest0-21swapper/212:40:002
3233405994329,8cyclictest0-21swapper/209:00:292
3233401994336,4cyclictest20650irq/252-8000000.ethernet07:55:180
3233401994335,4cyclictest20650irq/252-8000000.ethernet11:20:190
3233401994334,6cyclictest0-21swapper/011:50:000
323340199431,40cyclictest0-21swapper/008:45:220
3233405994232,7cyclictest3272840-21sendmail11:00:002
3233405994230,8cyclictest0-21swapper/211:30:312
3233405994230,7cyclictest3288149-21grep12:25:292
3233405994228,8cyclictest0-21swapper/210:30:292
3233405994228,8cyclictest0-21swapper/210:30:292
3233402994234,5cyclictest3242186-21sendmail08:00:001
3233402994232,6cyclictest3273600-21grep11:00:291
3233402994231,8cyclictest0-21swapper/109:10:291
3233402994231,7cyclictest3289690-21grep12:35:271
3233402994227,8cyclictest0-21swapper/109:25:291
3233402994224,8cyclictest0-21swapper/108:35:271
3233402994221,13cyclictest0-21swapper/107:15:231
3233401994237,2cyclictest0-21swapper/010:35:270
3233401994235,4cyclictest20650irq/252-8000000.ethernet11:55:200
3233401994235,4cyclictest20650irq/252-8000000.ethernet10:55:190
3233401994235,4cyclictest20650irq/252-8000000.ethernet10:10:000
3233401994235,4cyclictest20650irq/252-8000000.ethernet09:40:230
3233401994234,4cyclictest3287299-21unixbench_multi12:20:280
3233401994234,4cyclictest3287299-21unixbench_multi12:20:280
3233401994234,4cyclictest20650irq/252-8000000.ethernet12:00:270
3233401994229,9cyclictest0-21swapper/011:40:000
3233401994229,9cyclictest0-21swapper/008:55:000
3233401994229,8cyclictest131ktimers/011:05:120
3233401994228,8cyclictest0-21swapper/012:15:290
323340199422,4cyclictest3237100-21sshd07:28:000
323340199421,39cyclictest0-21swapper/010:00:270
323340199421,37cyclictest3282224-21sort11:55:010
3233405994134,4cyclictest3240442-21unixbench_singl07:45:292
3233405994129,8cyclictest0-21swapper/209:10:292
3233405994128,9cyclictest0-21swapper/211:05:002
3233405994125,9cyclictest0-21swapper/211:15:232
3233402994132,5cyclictest3284670-21grep12:05:301
3233402994131,6cyclictest3280425-21grep11:40:281
3233402994130,5cyclictest0-21swapper/108:10:221
3233402994129,7cyclictest0-21swapper/110:45:291
3233401994135,3cyclictest3255111-21munin-plugin-st09:14:590
3233401994134,4cyclictest20650irq/252-8000000.ethernet11:15:280
3233401994134,4cyclictest20650irq/252-8000000.ethernet10:10:240
3233401994134,4cyclictest20650irq/252-8000000.ethernet09:30:220
3233401994134,4cyclictest20650irq/252-8000000.ethernet09:05:170
3233401994134,4cyclictest20650irq/252-8000000.ethernet09:05:170
3233401994134,4cyclictest20650irq/252-8000000.ethernet07:30:290
3233401994134,4cyclictest20650irq/252-8000000.ethernet07:15:310
3233401994133,4cyclictest20650irq/252-8000000.ethernet08:30:160
323340199412,5cyclictest3260688-21meminfo09:45:250
3233405994033,4cyclictest0-21swapper/209:10:002
3233405994033,4cyclictest0-21swapper/209:10:002
3233405994031,5cyclictest3259285-21grep09:35:292
3233405994030,5cyclictest0-21swapper/209:15:282
3233405994029,7cyclictest3247284-21grep08:25:292
323340599402,6cyclictest3275366-21apt-get11:15:022
3233402994031,5cyclictest0-21swapper/107:35:281
3233402994030,6cyclictest3237027-21grep07:25:251
3233402994029,6cyclictest3251532-21grep08:50:291
3233402994028,6cyclictest3288111-21grep12:25:291
3233402994027,6cyclictest3239566-21grep07:40:281
3233401994034,4cyclictest0-21swapper/008:00:030
3233401994033,4cyclictest20650irq/252-8000000.ethernet12:35:210
3233401994033,3cyclictest20650irq/252-8000000.ethernet07:50:210
3233405993930,4cyclictest3284699-21grep12:05:292
3233405993927,8cyclictest0-21swapper/211:50:292
3233405993921,13cyclictest311ktimers/207:35:112
3233402993929,6cyclictest3262670-21grep09:55:291
3233402993928,6cyclictest0-21swapper/107:25:021
3233402993926,9cyclictest0-21swapper/108:05:191
3233402993926,8cyclictest0-21swapper/110:55:271
3233402993923,10cyclictest231ktimers/111:30:141
3233401993932,4cyclictest20850irq/208-8000000.ethernet07:10:230
3233401993932,4cyclictest20650irq/252-8000000.ethernet08:08:590
3233401993928,8cyclictest0-21swapper/009:35:290
323340199391,6cyclictest0-21swapper/008:20:010
3233405993829,5cyclictest0-21swapper/211:35:292
3233405993829,5cyclictest0-21swapper/208:45:312
3233405993827,6cyclictest0-21swapper/209:30:252
3233405993823,10cyclictest0-21swapper/208:15:282
3233402993824,9cyclictest0-21swapper/107:30:291
323340299382,30cyclictest0-21swapper/111:15:031
3233402993822,9cyclictest0-21swapper/110:00:291
3233402993822,11cyclictest3287312-21head12:20:281
3233402993822,11cyclictest3287312-21head12:20:281
3233401993827,8cyclictest0-21swapper/010:35:000
3233401993827,8cyclictest0-21swapper/010:35:000
3233401993826,8cyclictest0-21swapper/008:55:210
3233401993826,8cyclictest0-21swapper/008:55:210
323340199381,35cyclictest0-21swapper/012:30:170
323340199381,2cyclictest0-21swapper/012:25:230
3233405993730,4cyclictest3234199-21cron07:15:002
3233405993729,4cyclictest14-21rcu_preempt07:30:292
3233405993729,4cyclictest0-21swapper/212:15:012
3233405993728,5cyclictest0-21swapper/211:45:302
3233405993727,7cyclictest0-21swapper/210:10:282
3233405993727,6cyclictest0-21swapper/210:20:292
3233405993723,10cyclictest0-21swapper/210:30:002
3233402993730,4cyclictest14-21rcu_preempt11:45:281
3233402993729,4cyclictest3247226-21grep08:25:291
3233402993719,12cyclictest3254138-21grep09:05:301
3233402993719,12cyclictest3254138-21grep09:05:301
3233402993622,8cyclictest0-21swapper/109:45:291
3233401993626,6cyclictest3238700-21grep07:35:270
3233401993621,12cyclictest0-21swapper/007:10:010
323340199361,33cyclictest0-21swapper/010:25:240
323340199361,33cyclictest0-21swapper/009:25:150
323340199361,31cyclictest3284691-21head12:05:290
3233405993527,5cyclictest3280444-21grep11:40:282
3233405993527,4cyclictest0-21swapper/212:00:212
3233405993527,4cyclictest0-21swapper/208:40:282
3233405993526,5cyclictest3262597-21grep09:55:292
3233405993526,5cyclictest0-21swapper/210:00:172
3233405993524,7cyclictest311ktimers/211:25:122
3233405993524,7cyclictest311ktimers/211:25:122
3233402993527,4cyclictest3244788-21kworker/u8:0-events_power_efficient08:20:211
3233402993524,7cyclictest0-21swapper/108:45:311
3233402993519,9cyclictest0-21swapper/111:05:201
3233402993516,13cyclictest0-21swapper/111:20:271
3233401993530,3cyclictest0-21swapper/008:14:050
3233401993528,5cyclictest0-21swapper/007:45:280
3233405993426,5cyclictest3274459-21grep11:05:292
3233405993425,5cyclictest14-21rcu_preempt08:30:292
3233405993423,8cyclictest0-21swapper/211:55:312
323340299348,21cyclictest22-21rcuc/108:55:011
323340299348,21cyclictest22-21rcuc/108:55:011
3233402993425,6cyclictest3285637-21grep12:10:291
3233401993430,2cyclictest0-21swapper/010:50:220
3233405993326,3cyclictest0-21swapper/210:20:012
3233405993325,5cyclictest0-21swapper/209:20:272
3233405993324,6cyclictest3270602-21fschecks_count10:45:192
3233405993322,7cyclictest0-21swapper/207:15:292
323340599331,27cyclictest0-21swapper/210:09:542
3233402993325,5cyclictest167450irq/126-8000000.ethernet-tx110:15:251
3233402993324,5cyclictest22-21rcuc/111:15:011
3233402993323,6cyclictest3286484-21grep12:15:291
3233402993323,6cyclictest3279578-21grep11:35:281
3233402993323,5cyclictest0-21swapper/109:20:281
3233402993322,7cyclictest3267680-21grep10:25:311
3233402993318,9cyclictest0-21swapper/109:15:311
3233405993224,4cyclictest0-21swapper/208:05:202
323340299322,24cyclictest0-21swapper/110:10:031
3233402993218,8cyclictest0-21swapper/109:30:281
3233402993215,10cyclictest22-21rcuc/107:50:131
323340299321,25cyclictest0-21swapper/110:40:171
323340299321,25cyclictest0-21swapper/109:35:241
3233405993120,7cyclictest0-21swapper/212:15:282
323340599311,28cyclictest0-21swapper/211:20:192
323340299317,15cyclictest3288946-21grep12:30:301
323340299313,3cyclictest14-21rcu_preempt09:50:221
3233405993023,4cyclictest0-21swapper/209:45:282
3233405993020,5cyclictest3257597-21grep09:25:292
3233405993019,5cyclictest0-21swapper/212:30:222
3233405993017,8cyclictest311ktimers/210:40:122
323340599301,3cyclictest0-21swapper/208:25:012
3233402993021,6cyclictest0-21swapper/110:35:291
3233402993019,6cyclictest0-21swapper/107:10:271
3233402993010,13cyclictest3245524-21grep08:15:291
3233405992921,4cyclictest0-21swapper/210:50:212
3233405992920,7cyclictest311ktimers/209:50:142
323340599291,26cyclictest3241535-21/usr/sbin/munin07:55:262
323340299282,17cyclictest3233452-21latency_hist07:10:011
3233402992817,7cyclictest231ktimers/109:40:261
3233405992617,6cyclictest0-21swapper/207:25:262
3233405992412,8cyclictest311ktimers/208:35:122
3233405991813,3cyclictest3233362-21latency_hist07:10:012
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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