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2026-05-12 - 18:10

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 Tue May 12, 2026 12:44:44)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1015808998966,19cyclictest311ktimers/212:20:012
101580999793,16cyclictest38-21rcuc/307:55:173
1015806997212,15cyclictest1069616-21apt-get12:25:021
101580699701,29cyclictest0-21swapper/107:10:011
1015806996612,23cyclictest0-21swapper/111:45:011
101580899609,25cyclictest32-21ksoftirqd/211:00:012
1015804995916,40cyclictest1035750-21munin-plugin-st09:05:010
101580699566,18cyclictest0-21swapper/110:25:171
101580499558,20cyclictest14-21rcu_preempt11:20:020
1015808995310,18cyclictest311ktimers/209:15:012
1015806995344,5cyclictest1020364-21munin-plugin-st07:34:591
1015808995143,5cyclictest311ktimers/209:05:202
1015808995141,6cyclictest1027847-21grep08:15:292
1015808995137,9cyclictest1017830-21munin-plugin-st07:20:002
1015804995140,6cyclictest167350irq/118-8000000.ethernet-tx009:40:010
1015804995137,9cyclictest0-21swapper/010:00:000
101580499511,5cyclictest1016834-21memory07:15:020
1015808995043,4cyclictest1067075-21munin-plugin-st12:10:002
1015808995042,5cyclictest1061160-21munin-run11:35:012
101580699501,21cyclictest0-21swapper/109:40:011
1015804995031,16cyclictest167350irq/118-8000000.ethernet-tx010:45:200
1015804995031,13cyclictest131ktimers/007:40:140
101580499502,7cyclictest0-21swapper/011:15:000
101580499502,22cyclictest0-21swapper/012:30:010
1015806994942,5cyclictest0-21swapper/111:15:011
1015806994924,14cyclictest1015800-21cyclictest12:25:121
1015808994840,4cyclictest14-21rcu_preempt11:35:282
1015806994837,7cyclictest1050861-21grep10:30:271
1015806994836,8cyclictest1017181-21munin-node07:15:111
1015806994826,14cyclictest1072006-21/usr/sbin/munin12:35:281
1015806994826,10cyclictest0-21swapper/108:15:141
1015806994730,11cyclictest1033325-21apt-get08:50:171
1015806994728,14cyclictest0-21swapper/109:15:131
1015806994728,13cyclictest0-21swapper/110:10:141
1015806994725,12cyclictest231ktimers/108:45:121
101580699471,17cyclictest24-21ksoftirqd/108:25:001
101580699471,17cyclictest24-21ksoftirqd/108:25:001
101580499471,39cyclictest1015934-21wc07:10:010
101580899464,35cyclictest32-21ksoftirqd/207:25:202
1015808994631,9cyclictest1066152-21grep12:00:292
1015806994632,10cyclictest0-21swapper/108:45:011
1015806994630,5cyclictest0-21swapper/109:05:011
1015806994623,13cyclictest1056658-21/usr/sbin/munin11:05:271
1015806994622,11cyclictest0-21swapper/108:55:131
101580699461,25cyclictest0-21swapper/107:25:201
101580499464,5cyclictest1049273-21latency_hist10:25:010
1015804994638,4cyclictest167350irq/118-8000000.ethernet-tx010:10:130
101580499462,39cyclictest1029352-21phc2sys08:25:250
101580499461,7cyclictest0-21swapper/008:35:000
101580499461,5cyclictest1050706-21ptp4l10:30:270
1015806994527,8cyclictest1020863-21/usr/sbin/munin07:35:251
1015806994526,12cyclictest0-21swapper/111:50:121
1015806994526,12cyclictest0-21swapper/111:25:131
1015806994526,11cyclictest0-21swapper/109:05:101
1015806994523,10cyclictest0-21swapper/110:00:161
1015806994521,12cyclictest0-21swapper/108:10:141
1015804994538,4cyclictest167350irq/118-8000000.ethernet-tx011:45:310
1015804994538,4cyclictest167350irq/118-8000000.ethernet-tx011:35:300
1015804994538,4cyclictest167350irq/118-8000000.ethernet-tx010:00:300
101580499451,12cyclictest0-21swapper/011:30:010
1015808994435,4cyclictest0-21swapper/209:00:212
1015808994431,9cyclictest0-21swapper/208:50:212
1015806994434,6cyclictest0-21swapper/111:15:281
1015806994429,11cyclictest0-21swapper/107:20:141
1015806994426,10cyclictest1029356-21/usr/sbin/munin08:25:271
1015804994431,8cyclictest20850irq/208-8000000.ethernet10:10:000
101580499442,37cyclictest1027985-21grep08:20:010
101580499441,37cyclictest0-21swapper/010:45:000
1015808994336,2cyclictest0-21swapper/207:10:012
1015808994329,10cyclictest311ktimers/212:35:142
1015808994324,13cyclictest311ktimers/209:45:152
1015806994328,10cyclictest0-21swapper/109:30:291
1015806994324,9cyclictest1048963-21/usr/sbin/munin10:20:261
1015806994324,11cyclictest1023705-21/usr/sbin/munin07:50:301
1015806994323,11cyclictest1016193-21/usr/sbin/munin07:10:231
1015804994335,5cyclictest0-21swapper/009:15:240
1015804994333,7cyclictest1044076-21grep09:50:270
1015804994331,7cyclictest0-21swapper/011:05:300
1015804994327,10cyclictest1036526-21grep09:05:290
101580499431,5cyclictest1055960-21grep11:00:300
1015806994228,6cyclictest0-21swapper/108:40:011
1015806994227,10cyclictest0-21swapper/112:30:131
1015806994226,12cyclictest0-21swapper/112:15:121
1015806994226,11cyclictest0-21swapper/110:35:131
1015806994221,13cyclictest1052317-21/usr/sbin/munin10:40:271
1015806994221,12cyclictest0-21swapper/112:05:161
1015804994236,3cyclictest0-21swapper/007:35:000
101580499423,5cyclictest1023004-21cat07:50:000
1015804994235,4cyclictest167350irq/118-8000000.ethernet-tx008:45:030
1015804994234,4cyclictest167350irq/118-8000000.ethernet-tx012:35:210
1015804994234,4cyclictest1054043-21grep10:50:270
1015804994228,10cyclictest0-21swapper/009:30:280
1015804994224,13cyclictest131ktimers/012:10:110
101580499421,38cyclictest0-21swapper/011:45:010
1015808994121,12cyclictest311ktimers/209:25:152
1015808994121,12cyclictest311ktimers/209:25:142
1015806994134,3cyclictest1055373-21apt-get11:00:141
1015806994130,6cyclictest1054218-21grep10:50:291
1015806994127,8cyclictest1048000-21/usr/sbin/munin10:15:231
1015806994126,12cyclictest0-21swapper/109:40:111
1015806994124,10cyclictest0-21swapper/111:45:291
1015806994120,14cyclictest1067689-21ptp4l12:10:261
1015806994120,14cyclictest1025385-21grep08:00:301
1015806994119,12cyclictest1044492-21/usr/sbin/munin09:55:201
1015806994111,14cyclictest0-21swapper/110:45:111
1015804994134,4cyclictest167350irq/118-8000000.ethernet-tx011:55:200
1015804994134,4cyclictest167350irq/118-8000000.ethernet-tx011:55:200
1015804994134,4cyclictest0-21swapper/012:30:180
1015804994134,4cyclictest0-21swapper/011:20:310
101580499412,4cyclictest1019183-21meminfo07:25:270
101580499411,38cyclictest1016607-21apt-get07:15:060
101580499411,38cyclictest0-21swapper/012:00:240
101580899404,17cyclictest30-21rcuc/207:55:182
1015808994029,8cyclictest14-21rcu_preempt12:20:252
1015806994033,3cyclictest1046087-21apt-get10:05:141
1015806994029,7cyclictest1026214-21grep08:05:291
1015806994028,8cyclictest0-21swapper/112:00:121
1015806994022,9cyclictest1061631-21/usr/sbin/munin11:35:251
1015806994017,15cyclictest1038552-21dropbear09:20:181
1015804994035,2cyclictest0-21swapper/010:25:260
1015804994032,5cyclictest20850irq/208-8000000.ethernet08:50:290
1015804994028,6cyclictest0-21swapper/008:05:200
101580499401,4cyclictest1039702-21processes09:25:270
101580499401,4cyclictest1039702-21processes09:25:270
101580499401,3cyclictest1069452-21grep12:20:270
101580499401,37cyclictest0-21swapper/012:15:160
101580499401,37cyclictest0-21swapper/007:20:220
101580499401,2cyclictest0-21swapper/010:20:010
1015808993933,4cyclictest311ktimers/212:25:022
1015808993933,4cyclictest1005489-21kworker/u8:2-events_freezable_power_07:10:192
1015808993931,4cyclictest0-21swapper/209:00:002
1015808993929,5cyclictest0-21swapper/210:40:292
101580899391,28cyclictest1037417-21kworker/u8:3+rpciod09:24:242
1015806993928,6cyclictest1660-21snmpd07:59:501
1015806993923,9cyclictest1036789-21/usr/sbin/munin09:10:321
1015806993921,13cyclictest1039564-21/usr/sbin/munin09:25:231
1015806993921,13cyclictest1039564-21/usr/sbin/munin09:25:231
101580499395,3cyclictest0-21swapper/011:35:000
1015804993934,3cyclictest0-21swapper/007:35:270
1015804993923,14cyclictest1036911-21sh09:10:210
101580499391,3cyclictest1031625-21diskstats08:40:180
1015808993831,4cyclictest14-21rcu_preempt10:00:222
1015808993825,10cyclictest0-21swapper/207:30:232
1015808993822,9cyclictest1031105-21tail08:35:262
1015808993821,11cyclictest311ktimers/209:55:132
1015808993814,14cyclictest1026476-21/usr/sbin/munin08:10:182
1015806993829,6cyclictest1064736-21/usr/sbin/munin11:55:141
1015806993829,6cyclictest1064736-21/usr/sbin/munin11:55:141
1015806993827,8cyclictest1029855-21/usr/sbin/munin08:30:101
1015806993827,6cyclictest0-21swapper/109:50:261
1015806993825,10cyclictest1042704-21/usr/sbin/munin09:45:111
1015806993818,12cyclictest0-21swapper/107:45:131
1015804993832,4cyclictest0-21swapper/008:20:130
1015804993832,4cyclictest0-21swapper/008:20:120
1015804993831,5cyclictest0-21swapper/007:55:250
1015804993831,4cyclictest0-21swapper/008:35:130
101580499381,9cyclictest1066783-21phc2sys-jitter12:05:280
101580499381,3cyclictest1038485-21sshd09:20:030
101580499381,35cyclictest0-21swapper/009:45:140
101580499381,2cyclictest0-21swapper/010:40:020
1015808993721,8cyclictest0-21swapper/211:15:212
101580899371,29cyclictest1047759-21/usr/sbin/munin10:15:202
1015806993730,3cyclictest1054587-21diskstats10:55:191
1015804993733,2cyclictest0-21swapper/007:50:220
1015804993725,9cyclictest0-21swapper/008:05:000
101580499371,33cyclictest0-21swapper/009:40:250
1015808993626,4cyclictest0-21swapper/207:50:302
1015808993625,7cyclictest0-21swapper/212:30:272
1015808993620,9cyclictest1022404-21sh07:45:222
1015808993620,11cyclictest311ktimers/207:20:142
1015806993617,13cyclictest1022156-21sed07:45:011
1015804993629,4cyclictest0-21swapper/010:55:220
1015808993527,6cyclictest311ktimers/211:00:132
1015808993527,5cyclictest1040167-21/usr/sbin/munin09:30:192
1015808993527,5cyclictest0-21swapper/212:00:002
1015808993527,5cyclictest0-21swapper/211:59:592
1015808993521,8cyclictest0-21swapper/210:20:262
101580899351,19cyclictest32-21ksoftirqd/208:45:182
1015806993529,3cyclictest1060522-21apt-get11:30:141
1015806993520,11cyclictest1059036-21lsblk11:20:211
101580499351,3cyclictest1064087-21ssh11:50:220
101580499351,3cyclictest0-21swapper/008:55:140
1015808993429,4cyclictest14-21rcu_preempt10:10:222
1015808993426,4cyclictest0-21swapper/207:35:212
1015808993425,5cyclictest0-21swapper/211:45:292
1015808993425,5cyclictest0-21swapper/210:35:302
1015804993420,9cyclictest0-21swapper/008:15:020
1015808993326,4cyclictest14-21rcu_preempt08:30:192
1015808993323,7cyclictest311ktimers/211:50:182
1015808993323,5cyclictest0-21swapper/212:10:282
1015808993321,8cyclictest311ktimers/209:40:222
1015808993321,8cyclictest30-21rcuc/207:40:302
101580899325,18cyclictest32-21ksoftirqd/211:25:002
1015808993225,4cyclictest1024961-21sh08:00:212
1015808993224,6cyclictest1028175-21/usr/sbin/munin08:20:182
1015808993224,6cyclictest1028175-21/usr/sbin/munin08:20:182
1015808993222,5cyclictest0-21swapper/210:50:202
101580899321,26cyclictest0-21swapper/211:10:112
1015808993126,3cyclictest1050676-21proc_pri10:30:262
1015808993125,4cyclictest0-21swapper/208:45:002
1015808993124,5cyclictest14-21rcu_preempt08:25:272
1015808993124,4cyclictest0-21swapper/209:35:282
1015808993122,6cyclictest30-21rcuc/210:45:262
1015808993121,7cyclictest30-21rcuc/208:05:252
1015808993120,8cyclictest311ktimers/211:05:112
1015808993022,6cyclictest30-21rcuc/210:25:212
1015808993021,6cyclictest30-21rcuc/211:40:262
1015808993020,7cyclictest30-21rcuc/210:05:272
1015808992921,5cyclictest1060284-21grep11:25:302
1015808992820,6cyclictest30-21rcuc/209:50:252
101580899271,24cyclictest0-21swapper/209:15:372
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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