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2026-07-07 - 02:42

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 Jul 06, 2026 12:44:49)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3460164998157,12cyclictest311ktimers/211:45:002
3460161996841,23cyclictest3471543-21munin-plugin-st08:15:001
3460161996727,31cyclictest0-21swapper/108:30:271
3460161996660,4cyclictest231ktimers/110:20:011
346016199651,56cyclictest3494722-21/usr/sbin/munin10:30:201
3460158996525,36cyclictest0-21swapper/009:25:230
3460161996427,31cyclictest0-21swapper/111:25:311
3460161996417,38cyclictest0-21swapper/109:00:271
3460158996311,41cyclictest0-21swapper/008:45:110
3460158996311,41cyclictest0-21swapper/008:45:110
3460161996227,29cyclictest0-21swapper/108:05:281
3460161996226,30cyclictest0-21swapper/110:45:291
3460161996222,35cyclictest0-21swapper/111:20:001
3460161996120,32cyclictest0-21swapper/110:50:301
3460161996119,31cyclictest0-21swapper/111:35:201
3460161996115,6cyclictest0-21swapper/107:25:011
346015899611,5cyclictest0-21swapper/007:15:130
3460161996025,28cyclictest3472387-21munin-plugin-st08:20:011
3460158996010,14cyclictest0-21swapper/009:05:020
3460161995934,20cyclictest3488495-21grep09:50:271
3460161995837,17cyclictest3462162-21latency_hist07:19:591
3460161995721,30cyclictest0-21swapper/111:55:001
346016199562,4cyclictest3482272-21memory09:15:241
3460161995621,30cyclictest0-21swapper/110:55:221
3460161995612,9cyclictest0-21swapper/108:55:201
3460158995631,16cyclictest167350irq/118-8000000.ethernet-tx007:25:010
3460161995519,30cyclictest0-21swapper/112:15:201
3460161995514,7cyclictest0-21swapper/108:40:281
3460161995511,27cyclictest3460165-21apt-config07:10:001
3460161995421,28cyclictest3468890-21grep07:55:291
3460161995419,29cyclictest0-21swapper/112:30:321
3460161995416,4cyclictest3468098-21head07:50:281
346016199533,12cyclictest3508085-21sed11:45:281
3460161995315,30cyclictest0-21swapper/109:40:281
3460161995315,30cyclictest0-21swapper/109:40:281
3460161995314,6cyclictest0-21swapper/108:25:271
3460164995243,5cyclictest3515800-21munin-plugin-st12:35:002
3460161995211,9cyclictest0-21swapper/111:45:011
3460158995243,4cyclictest0-21swapper/008:25:120
346016199517,8cyclictest0-21swapper/107:45:011
3460161995137,10cyclictest3465641-21sendmail07:40:011
3460161995113,5cyclictest0-21swapper/111:10:011
346016199511,2cyclictest0-21swapper/109:10:011
346015899513,8cyclictest0-21swapper/008:35:010
3460158995112,36cyclictest0-21swapper/011:40:200
3460161995022,7cyclictest3499794-21/usr/sbin/munin11:00:281
3460161995022,7cyclictest3499794-21/usr/sbin/munin11:00:281
346016199501,43cyclictest0-21swapper/110:35:211
3460161995013,5cyclictest3483280-21wc09:20:281
346016199501,17cyclictest3478284-21grep08:50:291
3460158995032,14cyclictest131ktimers/010:50:130
3460158995031,17cyclictest15-21rcuc/008:55:000
3460158995029,12cyclictest15-21rcuc/012:00:010
3460158995017,13cyclictest15-21rcuc/011:30:010
346016199493,7cyclictest3481777-21wc09:15:001
3460161994936,8cyclictest3475867-21sendmail08:40:001
3460158994942,4cyclictest167350irq/118-8000000.ethernet-tx011:30:020
3460158994942,4cyclictest167350irq/118-8000000.ethernet-tx011:30:020
3460161994820,23cyclictest0-21swapper/110:25:311
3460161994813,9cyclictest0-21swapper/109:55:271
3460158994840,5cyclictest0-21swapper/009:10:260
346015899481,45cyclictest0-21swapper/010:05:140
346016199475,14cyclictest0-21swapper/107:30:261
3460161994716,5cyclictest0-21swapper/107:15:011
346016199471,24cyclictest0-21swapper/110:40:281
3460158994741,4cyclictest0-21swapper/009:50:010
3460158994740,4cyclictest167350irq/118-8000000.ethernet-tx008:10:230
3460158994737,5cyclictest167350irq/118-8000000.ethernet-tx009:05:010
3460158994732,10cyclictest3502961-21munin-plugin-st11:20:010
3460158994727,16cyclictest15-21rcuc/012:20:010
346015899471,8cyclictest0-21swapper/007:50:010
3460164994639,4cyclictest3477549-21munin-plugin-st08:50:002
3460164994639,4cyclictest3477549-21munin-plugin-st08:50:002
3460164994616,9cyclictest3476068-21/usr/sbin/munin08:40:192
346016199468,12cyclictest3513852-21wc12:20:261
3460161994627,16cyclictest167450irq/126-8000000.ethernet-tx108:45:141
3460161994627,16cyclictest167450irq/126-8000000.ethernet-tx108:45:141
3460161994610,4cyclictest0-21swapper/111:15:011
3460158994640,4cyclictest0-21swapper/008:35:220
3460158994636,6cyclictest20850irq/208-8000000.ethernet09:00:000
3460158994634,7cyclictest0-21swapper/010:00:300
346015899461,2cyclictest0-21swapper/012:15:010
346015899461,2cyclictest0-21swapper/012:15:010
3460164994526,14cyclictest311ktimers/207:30:122
3460161994516,6cyclictest231ktimers/108:00:221
3460161994516,6cyclictest231ktimers/108:00:221
3460161994514,4cyclictest3486141-21latency_hist09:40:011
346015899459,10cyclictest15-21rcuc/011:55:010
3460158994538,4cyclictest20850irq/208-8000000.ethernet07:40:270
3460158994532,8cyclictest0-21swapper/009:40:280
3460158994532,8cyclictest0-21swapper/009:40:280
346016199441,23cyclictest0-21swapper/109:30:291
346015899446,5cyclictest12-21ksoftirqd/009:35:260
3460158994432,5cyclictest0-21swapper/008:20:310
3460158994431,8cyclictest0-21swapper/007:50:290
346015899441,41cyclictest3488417-21sendmail_mailqu09:50:270
3460164994332,5cyclictest0-21swapper/207:15:302
3460164994326,10cyclictest0-21swapper/209:30:292
346016199434,10cyclictest0-21swapper/112:40:011
3460161994335,5cyclictest3509808-21sendmail12:00:001
3460161994321,4cyclictest0-21swapper/110:20:281
3460161994321,4cyclictest0-21swapper/110:20:281
3460161994315,7cyclictest0-21swapper/109:25:181
3460158994339,2cyclictest0-21swapper/010:55:120
3460158994337,2cyclictest0-21swapper/010:10:270
3460158994336,4cyclictest167350irq/118-8000000.ethernet-tx010:45:150
3460158994320,12cyclictest0-21swapper/007:10:010
346015899431,3cyclictest3513171-21apt-get12:20:010
3460164994231,5cyclictest0-21swapper/207:55:302
3460161994232,5cyclictest3473245-21munin-plugin-st08:25:001
346016199421,22cyclictest0-21swapper/110:08:031
3460158994236,3cyclictest15-21rcuc/011:10:240
346015899421,7cyclictest3469648-21/usr/sbin/munin08:00:260
346015899421,7cyclictest3469648-21/usr/sbin/munin08:00:250
3460164994127,10cyclictest0-21swapper/208:10:292
3460164994123,12cyclictest0-21swapper/210:40:282
3460161994130,6cyclictest0-21swapper/107:45:291
3460161994128,9cyclictest0-21swapper/110:05:001
346015899412,8cyclictest0-21swapper/011:50:010
3460158994128,9cyclictest0-21swapper/009:20:290
3460158994125,11cyclictest0-21swapper/007:30:190
346015899412,37cyclictest0-21swapper/007:30:000
346015899411,2cyclictest0-21swapper/011:05:010
346015899411,2cyclictest0-21swapper/011:05:010
346016499409,24cyclictest3497259-21/usr/sbin/munin10:45:192
3460164994031,6cyclictest167550irq/134-8000000.ethernet-tx210:20:282
3460164994031,6cyclictest167550irq/134-8000000.ethernet-tx210:20:272
3460164994028,8cyclictest0-21swapper/210:30:312
3460158994034,3cyclictest3460537-21ssh07:10:260
3460158994033,5cyclictest0-21swapper/008:05:280
346015899403,32cyclictest12-21ksoftirqd/010:30:010
3460158994031,6cyclictest3510552-21grep12:00:330
3460158994028,9cyclictest3501218-21grep11:05:290
346015899401,37cyclictest0-21swapper/012:30:290
3460158994013,6cyclictest12-21ksoftirqd/010:20:010
3460164993925,8cyclictest0-21swapper/211:00:002
3460158993924,11cyclictest0-21swapper/012:35:290
3460158993923,9cyclictest0-21swapper/012:05:220
346015899391,2cyclictest0-21swapper/009:20:020
3460158993912,3cyclictest0-21swapper/010:45:010
3460164993830,4cyclictest0-21swapper/211:30:282
3460164993830,4cyclictest0-21swapper/211:30:282
3460164993828,5cyclictest3479124-21grep08:55:292
3460164993811,10cyclictest30-21rcuc/207:30:022
3460158993824,9cyclictest20850irq/208-8000000.ethernet10:20:290
3460158993824,9cyclictest20850irq/208-8000000.ethernet10:20:290
346015899381,9cyclictest0-21swapper/010:00:010
346015899381,4cyclictest15-21rcuc/011:20:220
346015899381,35cyclictest0-21swapper/008:15:280
346015899381,34cyclictest0-21swapper/008:40:130
346015899381,2cyclictest0-21swapper/007:40:010
3460164993730,4cyclictest3478390-21munin-plugin-st08:55:002
3460164993728,5cyclictest0-21swapper/211:00:292
3460164993728,5cyclictest0-21swapper/211:00:282
3460164993725,8cyclictest3484238-21grep09:25:272
3460161993725,6cyclictest0-21swapper/112:05:221
3460161993722,8cyclictest0-21swapper/111:30:281
3460161993722,8cyclictest0-21swapper/111:30:281
3460158993731,4cyclictest3506007-21if_eth011:35:200
3460158993728,5cyclictest20850irq/208-8000000.ethernet09:35:000
3460158993726,7cyclictest0-21swapper/007:55:310
3460164993629,5cyclictest0-21swapper/208:25:172
3460164993629,4cyclictest0-21swapper/207:40:012
3460164993627,5cyclictest3492778-21head10:15:272
3460164993625,7cyclictest3502847-21sed11:15:262
3460164993619,10cyclictest311ktimers/212:20:142
3460161993621,6cyclictest0-21swapper/107:25:291
346016199361,4cyclictest0-21swapper/112:05:011
346015899361,4cyclictest0-21swapper/012:29:320
346015899361,2cyclictest0-21swapper/010:35:010
3460164993527,5cyclictest30-21rcuc/207:15:022
3460164993527,4cyclictest0-21swapper/209:45:272
3460164993524,6cyclictest0-21swapper/212:35:292
3460164993523,9cyclictest3494192-21dropbear10:25:282
3460164993521,9cyclictest0-21swapper/211:50:192
3460164993520,8cyclictest0-21swapper/209:50:282
3460164993519,12cyclictest311ktimers/209:40:132
3460164993519,12cyclictest311ktimers/209:40:122
3460164993519,11cyclictest311ktimers/209:00:112
3460164993518,11cyclictest311ktimers/212:10:132
3460164993518,11cyclictest311ktimers/212:10:132
3460164993513,11cyclictest3482825-21/usr/sbin/munin09:20:192
3460161993528,4cyclictest167450irq/126-8000000.ethernet-tx110:10:141
3460158993523,8cyclictest3495892-21cut10:35:260
3460164993425,5cyclictest3496166-21unixbench_singl10:35:292
3460164993425,5cyclictest3481721-21grep09:10:312
3460164993424,7cyclictest3481966-21/usr/sbin/munin09:15:112
3460164993423,8cyclictest0-21swapper/209:05:282
3460164993417,13cyclictest311ktimers/210:00:142
3460161993423,6cyclictest3514909-21grep12:25:301
3460164993325,6cyclictest0-21swapper/211:55:312
3460164993325,4cyclictest0-21swapper/211:30:012
3460164993322,7cyclictest0-21swapper/208:35:262
3460164993322,7cyclictest0-21swapper/207:20:202
3460164993315,14cyclictest311ktimers/212:00:152
3460161993323,7cyclictest0-21swapper/112:10:181
3460161993323,7cyclictest0-21swapper/112:10:181
3460164993226,4cyclictest14-21rcu_preempt11:10:262
3460164993224,5cyclictest167550irq/134-8000000.ethernet-tx212:20:002
3460164993224,4cyclictest0-21swapper/210:05:282
3460164993222,7cyclictest0-21swapper/210:10:272
3460164993219,8cyclictest0-21swapper/210:00:022
346016499319,12cyclictest3498097-21/usr/sbin/munin10:50:202
3460164993123,3cyclictest3512317-21kworker/u8:0+events_freezable_power_12:30:002
3460164993122,6cyclictest0-21swapper/207:10:002
3460164993120,8cyclictest1-21systemd11:38:332
3460164993111,6cyclictest167550irq/134-8000000.ethernet-tx208:03:212
3460164993111,6cyclictest167550irq/134-8000000.ethernet-tx208:03:212
346016499308,4cyclictest8321systemd-network08:24:302
3460164993022,4cyclictest0-21swapper/207:50:202
3460164993016,9cyclictest311ktimers/211:05:142
346016499301,27cyclictest0-21swapper/208:05:172
346016199301,4cyclictest0-21swapper/109:50:011
3460164992923,4cyclictest0-21swapper/211:45:182
3460164992921,6cyclictest1660-21snmpd11:23:192
3460164992918,8cyclictest311ktimers/207:45:112
3460164992817,7cyclictest0-21swapper/207:45:002
346016499281,2cyclictest3510855-21apt-get12:05:142
3460164992720,3cyclictest0-21swapper/208:15:302
3460164992619,3cyclictest0-21swapper/208:30:182
3460161992619,4cyclictest3503763-21head11:20:291
346016499251,22cyclictest0-21swapper/209:37:512
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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