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2026-03-15 - 17:16

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 Mar 15, 2026 12:44:50)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
861779911215,59cyclictest94020-21apt-get07:55:010
8617799851,80cyclictest0-21swapper/008:05:010
8617799851,80cyclictest0-21swapper/008:05:010
8617799851,2cyclictest0-21swapper/009:00:020
86182997429,39cyclictest0-21swapper/212:35:282
86177997239,28cyclictest20650irq/252-8000000.ethernet10:40:010
86182997027,5cyclictest0-21swapper/211:30:202
86182997025,8cyclictest93959-21grep07:50:282
86177997045,22cyclictest92342-21munin-plugin-st07:44:590
86177997029,33cyclictest0-21swapper/008:40:270
86182996936,27cyclictest140043-21grep12:20:282
86182996932,33cyclictest92299-21unixbench_singl07:40:282
86182996931,33cyclictest0-21swapper/208:50:292
86182996926,6cyclictest0-21swapper/209:50:272
86177996937,28cyclictest0-21swapper/012:20:000
86180996810,38cyclictest0-21swapper/112:40:011
8618099678,14cyclictest119748-21/usr/sbin/munin10:25:201
8617799671,9cyclictest0-21swapper/011:30:000
86182996630,9cyclictest0-21swapper/207:40:012
86182996528,4cyclictest0-21swapper/207:10:342
86177996530,30cyclictest0-21swapper/010:30:280
86182996429,30cyclictest0-21swapper/208:25:202
86182996423,7cyclictest0-21swapper/211:55:292
86182996423,7cyclictest0-21swapper/209:05:282
86180996423,20cyclictest113525-21kworker/u8:2+ext4-rsv-conversion10:00:061
86177996428,32cyclictest0-21swapper/007:55:290
86182996330,27cyclictest0-21swapper/211:10:272
86182996327,6cyclictest0-21swapper/210:50:002
86182996325,5cyclictest0-21swapper/209:40:212
86182996322,9cyclictest0-21swapper/210:40:292
86182996322,9cyclictest0-21swapper/210:40:282
8618099636,18cyclictest124984-21/usr/sbin/munin10:55:201
86180996351,8cyclictest0-21swapper/112:15:001
8617799631,58cyclictest100531-21meminfo08:30:230
8617799631,2cyclictest0-21swapper/009:40:010
8617799631,2cyclictest0-21swapper/009:40:010
86182996228,27cyclictest0-21swapper/207:20:252
86182996123,9cyclictest0-21swapper/208:20:192
86180996130,15cyclictest0-21swapper/108:35:111
86182996032,7cyclictest107512-21grep09:10:272
86182996028,4cyclictest0-21swapper/210:20:222
86177996013,43cyclictest137524-21grep12:05:270
86177996013,43cyclictest137524-21grep12:05:270
86182995923,10cyclictest0-21swapper/209:00:192
8618099598,33cyclictest0-21swapper/108:05:011
8618099598,33cyclictest0-21swapper/108:05:011
8618099598,15cyclictest0-21swapper/111:25:011
8618099598,15cyclictest0-21swapper/111:25:011
86177995937,18cyclictest0-21swapper/010:20:000
86177995937,18cyclictest0-21swapper/010:20:000
86177995930,27cyclictest20850irq/208-8000000.ethernet11:55:240
86177995925,31cyclictest0-21swapper/008:50:010
8617799592,4cyclictest99489-21lsblk08:25:200
86180995841,11cyclictest106989-21apt-get09:10:151
86177995832,22cyclictest0-21swapper/012:14:590
86177995830,24cyclictest0-21swapper/012:20:270
86177995829,24cyclictest106912-21cat09:10:010
86177995824,31cyclictest0-21swapper/011:05:270
8617799581,55cyclictest115228-21munin-run10:00:000
86180995741,10cyclictest92538-21/usr/sbin/munin07:45:291
86180995741,10cyclictest92538-21/usr/sbin/munin07:45:291
86177995728,26cyclictest0-21swapper/010:55:290
86177995728,25cyclictest0-21swapper/010:00:280
8617799571,8cyclictest0-21swapper/009:15:010
8617799571,50cyclictest132525-21latency_hist11:40:010
86182995627,8cyclictest0-21swapper/209:00:002
86182995627,8cyclictest0-21swapper/209:00:002
86180995638,10cyclictest88326-21apt-get07:20:151
86180995633,11cyclictest0-21swapper/107:55:131
86180995627,17cyclictest134097-21sed11:45:261
86177995631,21cyclictest0-21swapper/009:30:270
86177995627,24cyclictest0-21swapper/007:15:280
86177995626,25cyclictest0-21swapper/012:30:300
86180995534,14cyclictest0-21swapper/107:35:141
86180995529,15cyclictest138774-21/usr/sbin/munin12:15:221
86177995530,21cyclictest0-21swapper/009:25:280
8617799552,8cyclictest114305-21/usr/sbin/munin09:50:270
86177995514,37cyclictest0-21swapper/007:20:280
86177995512,39cyclictest112203-21tune2fs09:40:200
86177995511,35cyclictest0-21swapper/012:05:010
8617799550,43cyclictest0-21swapper/010:50:000
86182995423,8cyclictest0-21swapper/207:25:282
86180995430,12cyclictest0-21swapper/108:55:141
86180995430,12cyclictest0-21swapper/108:55:141
86177995436,15cyclictest99184-21cron08:25:000
86177995423,27cyclictest0-21swapper/009:00:000
86177995423,27cyclictest0-21swapper/009:00:000
86177995419,31cyclictest0-21swapper/011:45:000
86177995418,28cyclictest98472-21latency_hist08:20:010
8617799541,2cyclictest0-21swapper/008:40:010
86182995327,4cyclictest0-21swapper/210:30:282
86180995337,11cyclictest127523-21apt-get11:10:161
86180995334,12cyclictest135520-21/usr/sbin/munin11:55:261
86180995333,12cyclictest102834-21/usr/sbin/munin08:45:161
86180995331,13cyclictest0-21swapper/108:40:201
86180995314,13cyclictest0-21swapper/109:40:011
86180995314,13cyclictest0-21swapper/109:40:011
8617799538,32cyclictest23850irq/422-mmc110:40:050
8617799538,32cyclictest23850irq/422-mmc110:40:050
86177995337,13cyclictest20650irq/252-8000000.ethernet11:25:000
86177995337,13cyclictest20650irq/252-8000000.ethernet11:25:000
86177995325,24cyclictest135024-21grep11:55:000
8617799531,9cyclictest113168-21/usr/sbin/munin09:45:230
8617799531,46cyclictest0-21swapper/011:30:130
86182995224,5cyclictest0-21swapper/211:45:012
86180995238,10cyclictest99685-21/usr/sbin/munin08:25:241
86180995235,9cyclictest93383-21apt-get07:50:151
86180995232,13cyclictest90513-21/usr/sbin/munin07:30:281
86180995230,13cyclictest0-21swapper/107:40:111
86177995240,9cyclictest0-21swapper/010:10:000
86177995227,21cyclictest20650irq/252-8000000.ethernet12:25:220
8617799521,9cyclictest142044-21/usr/sbin/munin12:35:170
86177995214,34cyclictest0-21swapper/011:00:270
8618099517,15cyclictest100229-21/usr/sbin/munin08:30:171
86180995139,5cyclictest126683-21apt-get11:05:131
86180995132,12cyclictest128683-21/usr/sbin/munin11:15:251
86180995131,13cyclictest137442-21/usr/sbin/munin12:05:271
86180995131,13cyclictest137442-21/usr/sbin/munin12:05:271
86180995129,12cyclictest130484-21ptp4l11:25:271
8617799513,5cyclictest104365-21latency_hist08:55:010
8617799512,9cyclictest86533-21fschecks_time07:10:260
8617799511,5cyclictest119928-21perl10:25:220
8617799511,2cyclictest0-21swapper/007:50:010
8617799511,2cyclictest0-21swapper/007:50:010
86180995039,8cyclictest122169-21sendmail10:40:001
86180995034,9cyclictest87401-21munin-node07:15:061
86180995032,11cyclictest124394-21/usr/sbin/munin10:50:241
86180995031,12cyclictest131970-21/usr/sbin/munin11:35:211
86180995031,12cyclictest110446-21/usr/sbin/munin09:30:181
86180995029,13cyclictest107880-21/usr/sbin/munin09:15:151
86177995032,14cyclictest0-21swapper/008:10:210
86177995028,19cyclictest20650irq/252-8000000.ethernet10:15:000
86177995028,17cyclictest90538-21sed07:30:290
8617799501,9cyclictest128440-21/usr/sbin/munin11:15:190
8617799501,9cyclictest127820-21/usr/sbin/munin11:10:240
8617799501,5cyclictest109229-21grep09:20:270
86180994933,8cyclictest0-21swapper/110:00:001
86180994933,11cyclictest0-21swapper/110:05:111
86180994930,13cyclictest119213-21/usr/sbin/munin10:20:251
86180994930,12cyclictest134624-21/usr/sbin/munin11:50:211
8617799492,5cyclictest89485-21/usr/sbin/munin07:25:250
86177994923,21cyclictest0-21swapper/008:05:280
8617799491,7cyclictest124196-21/usr/sbin/munin10:50:160
86180994837,7cyclictest117666-21/usr/sbin/munin10:10:261
86180994836,6cyclictest106225-21/usr/sbin/munin09:05:191
86180994834,8cyclictest113473-21/usr/sbin/munin09:45:281
86180994833,9cyclictest89783-21sshd07:26:221
86180994832,10cyclictest0-21swapper/111:00:131
86180994832,10cyclictest0-21swapper/108:20:131
86180994831,11cyclictest122682-21/usr/sbin/munin10:40:221
86180994831,11cyclictest122682-21/usr/sbin/munin10:40:221
86180994830,12cyclictest131471-21/usr/sbin/munin11:30:301
86180994829,13cyclictest97119-21/usr/sbin/munin08:10:241
86180994823,14cyclictest0-21swapper/109:40:111
8617799482,5cyclictest91051-21/usr/sbin/munin07:35:220
8617799482,4cyclictest133946-21tail11:45:250
86182994732,8cyclictest108481-21sendmail09:20:002
86182994712,19cyclictest90002-21/usr/sbin/munin07:30:192
86180994741,3cyclictest113839-21ssh09:50:181
86180994740,3cyclictest109528-21apt-get09:25:121
86180994737,5cyclictest86414-21diskstats07:10:231
86180994735,6cyclictest133089-21/usr/sbin/munin11:40:281
86180994733,8cyclictest123608-21/usr/sbin/munin10:45:241
86180994730,10cyclictest96258-21/usr/sbin/munin08:05:211
86180994729,11cyclictest140558-21/usr/sbin/munin12:25:251
86180994728,12cyclictest139523-21/usr/sbin/munin12:20:171
86180994725,14cyclictest108826-21cut09:20:191
86180994719,15cyclictest0-21swapper/110:30:121
8617799472,5cyclictest119211-21memory10:20:250
86182994633,9cyclictest0-21swapper/211:15:292
86180994637,6cyclictest136074-21/usr/sbin/munin12:00:281
86177994638,5cyclictest0-21swapper/009:15:190
86180994537,4cyclictest118443-21/usr/sbin/munin10:15:281
86180994537,4cyclictest118443-21/usr/sbin/munin10:15:271
86180994535,5cyclictest141592-21/usr/sbin/munin12:30:291
86182994431,9cyclictest0-21swapper/212:10:282
86180994436,5cyclictest105377-21/usr/sbin/munin09:00:181
86180994425,8cyclictest0-21swapper/108:50:131
86182994333,5cyclictest100835-21grep08:30:272
86180994337,3cyclictest97689-21apt-get08:15:141
86182994233,5cyclictest0-21swapper/207:19:592
86182994231,8cyclictest0-21swapper/212:10:012
86182994231,8cyclictest0-21swapper/212:10:012
86182994230,7cyclictest126401-21grep11:00:272
86182994130,8cyclictest311ktimers/208:15:172
86182994028,7cyclictest136600-21grep12:00:272
86182994024,9cyclictest0-21swapper/209:45:222
86180993924,10cyclictest86261-21latency_hist07:10:011
8617799391,8cyclictest86335-21sed07:10:010
86182993830,4cyclictest0-21swapper/209:25:282
86182993828,6cyclictest93123-21grep07:45:282
86182993828,6cyclictest93123-21grep07:45:282
86182993825,8cyclictest0-21swapper/211:35:282
8618299382,30cyclictest121519-21/usr/sbin/munin10:35:272
86182993822,9cyclictest0-21swapper/211:45:172
86182993730,4cyclictest0-21swapper/210:25:292
86182993728,6cyclictest124739-21grep10:50:292
86182993728,5cyclictest0-21swapper/208:00:292
86182993728,5cyclictest0-21swapper/208:00:292
86182993727,7cyclictest0-21swapper/211:20:272
86182993727,7cyclictest0-21swapper/211:20:262
86182993726,7cyclictest0-21swapper/208:10:292
86182993724,10cyclictest0-21swapper/212:15:252
86182993723,8cyclictest0-21swapper/210:00:292
86182993629,4cyclictest0-21swapper/208:35:162
86182993627,5cyclictest0-21swapper/209:35:012
86182993619,9cyclictest0-21swapper/210:55:282
86182993528,4cyclictest0-21swapper/209:55:212
8618299352,4cyclictest0-21swapper/211:55:012
86182993522,9cyclictest0-21swapper/208:45:012
86182993522,8cyclictest94914-21grep07:55:292
86182993422,6cyclictest0-21swapper/208:45:272
86182993326,3cyclictest111847-21sh09:40:002
86182993326,3cyclictest111847-21sh09:40:002
86182993325,4cyclictest0-21swapper/212:30:282
86182993324,5cyclictest0-21swapper/210:15:202
86182993324,5cyclictest0-21swapper/210:15:202
86182993323,5cyclictest0-21swapper/211:25:272
86182993322,7cyclictest0-21swapper/210:10:272
86182993022,5cyclictest96605-21grep08:05:282
86182993022,5cyclictest0-21swapper/211:05:242
86182992920,5cyclictest311ktimers/210:05:202
86182992920,5cyclictest0-21swapper/212:25:212
86182992721,3cyclictest0-21swapper/209:20:202
86182992717,5cyclictest311ktimers/207:10:012
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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