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2026-06-03 - 05:48

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 Wed Jun 03, 2026 00:44:51)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3225112996619,45cyclictest131ktimers/023:25:110
322511699597,16cyclictest30-21rcuc/223:35:012
3225112995949,6cyclictest0-21swapper/000:35:110
322511299561,18cyclictest0-21swapper/022:05:010
3225116995446,4cyclictest14-21rcu_preempt22:15:202
322511299548,16cyclictest15-21rcuc/019:10:020
3225112995439,11cyclictest3269474-21sendmail23:40:000
3225116995328,13cyclictest311ktimers/223:55:152
3225112995345,5cyclictest0-21swapper/023:00:110
3225115995242,5cyclictest3256815-21munin-plugin-st22:25:001
3225112995233,16cyclictest167350irq/118-8000000.ethernet-tx019:15:010
3225116995145,4cyclictest0-21swapper/222:00:202
3225116995145,4cyclictest0-21swapper/222:00:192
3225116995138,9cyclictest0-21swapper/223:10:002
3225116995124,14cyclictest311ktimers/223:00:142
322511699509,19cyclictest30-21rcuc/219:20:012
3225116995037,8cyclictest3276333-21apt-get00:20:002
3225116995012,11cyclictest32-21ksoftirqd/200:40:012
3225112995039,7cyclictest20850irq/208-8000000.ethernet21:00:300
3225116994937,9cyclictest311ktimers/222:45:152
3225116994932,10cyclictest311ktimers/220:25:132
3225116994918,18cyclictest3262065-21/usr/sbin/munin22:55:192
3225112994941,5cyclictest3256706-21grep22:20:290
322511299491,7cyclictest3229222-21cut19:40:230
322511299481,9cyclictest0-21swapper/023:25:020
3225116994733,5cyclictest0-21swapper/220:40:012
3225116994729,9cyclictest0-21swapper/221:45:272
3225112994739,4cyclictest167350irq/118-8000000.ethernet-tx021:05:180
3225112994737,5cyclictest15-21rcuc/023:45:200
322511299473,42cyclictest0-21swapper/019:55:120
3225112994730,15cyclictest0-21swapper/019:50:210
3225112994730,15cyclictest0-21swapper/019:50:210
3225116994635,5cyclictest0-21swapper/219:40:002
3225116994628,11cyclictest0-21swapper/223:20:222
322511599461,41cyclictest0-21swapper/123:25:011
322511599461,29cyclictest22-21rcuc/123:15:021
322511299467,15cyclictest15-21rcuc/023:15:020
3225112994637,5cyclictest0-21swapper/021:40:290
322511299463,5cyclictest3242360-21munin-run21:00:000
322511299463,5cyclictest3242360-21munin-run21:00:000
3225112994623,20cyclictest19750irq/27-20000000.i2c19:45:250
3225112994623,20cyclictest19750irq/27-20000000.i2c19:45:240
322511699454,22cyclictest32-21ksoftirqd/223:40:022
3225116994535,4cyclictest0-21swapper/221:30:012
3225116994534,6cyclictest3278844-21grep00:30:312
3225116994533,8cyclictest3273738-21grep00:00:312
3225115994530,9cyclictest0-21swapper/121:05:291
3225115994529,9cyclictest0-21swapper/122:35:181
3225112994537,4cyclictest167350irq/118-8000000.ethernet-tx021:25:010
322511299453,5cyclictest3274061-21diskstats00:05:230
322511299453,40cyclictest0-21swapper/000:20:000
3225112994523,15cyclictest0-21swapper/022:40:020
322511599447,31cyclictest22-21rcuc/119:10:011
322511599445,15cyclictest22-21rcuc/122:10:001
3225115994430,10cyclictest0-21swapper/123:40:001
3225112994437,4cyclictest167350irq/118-8000000.ethernet-tx023:50:230
3225112994435,5cyclictest0-21swapper/023:10:000
322511299441,5cyclictest3248270-21apt-get21:35:040
322511299441,40cyclictest3265887-21sendmail_mailqu23:15:270
3225112994411,31cyclictest3278081-21sshd00:27:280
3225116994328,10cyclictest0-21swapper/221:40:012
3225116994325,15cyclictest311ktimers/219:50:132
3225116994325,15cyclictest311ktimers/219:50:132
3225115994326,9cyclictest0-21swapper/100:20:311
3225112994336,4cyclictest20850irq/208-8000000.ethernet20:15:000
322511299431,37cyclictest0-21swapper/022:45:010
322511299431,37cyclictest0-21swapper/022:45:010
3225116994233,5cyclictest0-21swapper/220:40:302
3225116994227,8cyclictest0-21swapper/221:30:422
3225116994225,11cyclictest0-21swapper/220:10:192
3225116994222,13cyclictest311ktimers/200:05:162
322511599427,7cyclictest22-21rcuc/122:00:011
322511599427,7cyclictest22-21rcuc/122:00:011
3225115994233,5cyclictest0-21swapper/121:55:281
3225115994226,9cyclictest0-21swapper/122:10:281
3225115994226,9cyclictest0-21swapper/119:30:161
3225115994225,10cyclictest0-21swapper/122:45:001
3225115994225,10cyclictest0-21swapper/122:45:001
3225112994237,3cyclictest167350irq/118-8000000.ethernet-tx022:17:280
3225112994235,4cyclictest0-21swapper/023:30:290
322511299421,9cyclictest0-21swapper/019:40:010
322511299421,5cyclictest3272700-21/usr/sbin/munin23:55:280
322511699413,28cyclictest32-21ksoftirqd/223:40:032
3225116994130,7cyclictest0-21swapper/223:45:282
3225116994130,5cyclictest0-21swapper/220:00:322
3225116994121,15cyclictest311ktimers/223:50:162
3225116994116,12cyclictest311ktimers/219:55:122
322511599419,28cyclictest3244030-21kworker/u8:2-events_power_efficient21:11:181
322511599419,28cyclictest3244030-21kworker/u8:2-events_power_efficient21:11:181
3225115994130,7cyclictest0-21swapper/119:50:011
3225115994130,7cyclictest0-21swapper/119:50:011
322511299412,4cyclictest0-21swapper/021:30:380
322511299412,37cyclictest0-21swapper/020:00:280
322511299411,5cyclictest0-21swapper/021:45:170
322511299411,3cyclictest0-21swapper/021:15:220
322511299411,37cyclictest1660-21snmpd22:55:200
322511299411,37cyclictest0-21swapper/019:30:070
3225116994030,5cyclictest0-21swapper/220:55:262
3225116994030,5cyclictest0-21swapper/220:55:262
3225116994030,4cyclictest0-21swapper/200:25:212
3225116994028,7cyclictest3261805-21grep22:50:302
3225116994027,7cyclictest0-21swapper/223:15:272
3225116994021,14cyclictest311ktimers/223:25:122
3225115994026,6cyclictest0-21swapper/120:15:281
3225115994026,6cyclictest0-21swapper/120:15:281
3225115994025,10cyclictest0-21swapper/121:30:411
322511299402,36cyclictest0-21swapper/020:45:150
322511299401,5cyclictest0-21swapper/021:55:130
322511299401,37cyclictest0-21swapper/022:45:220
322511299401,35cyclictest0-21swapper/021:10:300
322511299401,35cyclictest0-21swapper/021:10:300
322511299401,34cyclictest3278886-21grep00:30:300
3225116993931,5cyclictest14-21rcu_preempt21:40:262
3225116993929,5cyclictest3228354-21munin-plugin-st19:35:002
3225116993928,6cyclictest0-21swapper/220:30:302
3225116993928,6cyclictest0-21swapper/220:30:302
3225116993924,5cyclictest0-21swapper/219:15:012
3225116993923,12cyclictest311ktimers/221:55:112
3225116993921,8cyclictest0-21swapper/220:20:282
322511599397,26cyclictest3246196-21if_eth121:20:231
3225115993931,5cyclictest0-21swapper/100:35:301
3225115993930,5cyclictest3237167-21grep20:25:281
3225115993928,7cyclictest0-21swapper/121:35:281
3225115993927,8cyclictest0-21swapper/100:25:291
3225115993923,10cyclictest0-21swapper/120:45:271
3225115993922,8cyclictest0-21swapper/122:25:271
322511599391,2cyclictest0-21swapper/120:35:011
3225112993932,4cyclictest0-21swapper/019:20:000
3225112993930,5cyclictest0-21swapper/022:30:300
3225112993922,15cyclictest0-21swapper/021:50:180
322511299391,3cyclictest3275178-21phc2sys-jitter00:10:270
322511299391,3cyclictest3275178-21phc2sys-jitter00:10:270
322511299391,36cyclictest0-21swapper/021:25:150
3225116993827,6cyclictest0-21swapper/222:10:262
3225115993829,6cyclictest3243099-21grep21:00:291
3225115993829,5cyclictest0-21swapper/120:30:301
3225115993829,5cyclictest0-21swapper/120:30:301
3225115993822,11cyclictest231ktimers/120:40:141
322511599381,31cyclictest0-21swapper/123:05:271
3225112993831,4cyclictest0-21swapper/020:20:240
322511299381,9cyclictest3238918-21apt-key20:40:000
322511299381,35cyclictest0-21swapper/023:40:170
3225116993729,5cyclictest14-21rcu_preempt21:05:202
3225116993727,5cyclictest0-21swapper/221:20:312
3225116993725,7cyclictest0-21swapper/221:15:282
3225116993723,7cyclictest311ktimers/222:20:192
3225116993721,8cyclictest30-21rcuc/219:45:282
3225116993721,8cyclictest30-21rcuc/219:45:282
3225116993720,8cyclictest0-21swapper/200:15:012
3225116993720,8cyclictest0-21swapper/200:15:012
3225115993727,5cyclictest0-21swapper/100:05:011
3225115993724,8cyclictest0-21swapper/123:05:001
3225115993714,4cyclictest14-21rcu_preempt23:00:011
322511599371,2cyclictest0-21swapper/123:25:011
322511299372,32cyclictest3239733-21sed20:40:290
3225112993716,7cyclictest131ktimers/020:35:010
3225112993716,7cyclictest131ktimers/020:35:010
322511299371,34cyclictest0-21swapper/022:10:120
322511299371,31cyclictest0-21swapper/022:30:020
322511299371,2cyclictest3240876-21apt-get20:50:130
322511299371,2cyclictest3234870-21apt-get20:15:140
322511299371,2cyclictest3234870-21apt-get20:15:140
3225116993628,4cyclictest0-21swapper/219:20:252
3225116993628,4cyclictest0-21swapper/219:20:242
3225115993627,4cyclictest0-21swapper/123:50:311
3225115993624,8cyclictest0-21swapper/123:55:301
3225115993624,7cyclictest0-21swapper/120:00:301
3225115993621,10cyclictest0-21swapper/119:40:161
322511599361,3cyclictest0-21swapper/122:35:011
3225112993630,4cyclictest0-21swapper/000:00:210
3225116993529,4cyclictest14-21rcu_preempt21:10:212
3225116993529,4cyclictest14-21rcu_preempt21:10:212
3225116993522,7cyclictest311ktimers/220:15:062
3225116993522,7cyclictest311ktimers/220:15:062
3225116993518,9cyclictest0-21swapper/220:45:212
322511699351,31cyclictest3242572-21/usr/sbin/munin21:00:252
322511699351,28cyclictest0-21swapper/222:05:182
322511299358,24cyclictest3226755-21fschecks_count19:20:150
322511299358,24cyclictest3226755-21fschecks_count19:20:150
322511299351,31cyclictest3233099-21/usr/sbin/munin20:05:140
3225116993425,4cyclictest0-21swapper/222:45:022
3225116993425,4cyclictest0-21swapper/222:45:012
3225116993424,5cyclictest0-21swapper/221:50:282
3225116993421,8cyclictest311ktimers/220:05:162
322511699341,3cyclictest0-21swapper/200:25:022
322511599344,5cyclictest3242207-21tr20:55:271
322511599344,5cyclictest3242207-21tr20:55:261
3225115993428,4cyclictest167450irq/126-8000000.ethernet-tx122:15:291
3225115993426,4cyclictest0-21swapper/119:15:001
3225115993425,5cyclictest0-21swapper/120:10:281
3225115993423,6cyclictest0-21swapper/123:40:281
3225115993421,10cyclictest22-21rcuc/100:15:011
3225115993421,10cyclictest22-21rcuc/100:15:011
3225115993420,8cyclictest0-21swapper/120:05:301
322511599341,29cyclictest0-21swapper/121:40:221
322511599341,27cyclictest0-21swapper/122:50:111
3225112993427,4cyclictest167350irq/118-8000000.ethernet-tx022:00:240
3225112993427,4cyclictest167350irq/118-8000000.ethernet-tx022:00:240
3225116993323,5cyclictest0-21swapper/222:35:192
322511699331,29cyclictest3257851-21/usr/sbin/munin22:30:272
3225116993310,11cyclictest3257011-21/usr/sbin/munin22:25:182
3225115993322,8cyclictest0-21swapper/120:50:251
3225115993322,7cyclictest0-21swapper/121:50:201
322511599331,5cyclictest3276319-21munin-run00:19:591
3225115993315,15cyclictest231ktimers/119:55:131
3225112993327,3cyclictest3236913-21tail20:25:260
3225116993225,4cyclictest14-21rcu_preempt20:50:272
3225115993223,6cyclictest3270610-21/usr/sbin/munin23:45:211
3225115993222,5cyclictest0-21swapper/121:25:221
3225112993218,9cyclictest0-21swapper/022:55:000
3225116993121,7cyclictest30-21rcuc/223:10:252
3225116993120,6cyclictest0-21swapper/219:40:242
3225115993126,4cyclictest0-21swapper/119:50:171
3225115993126,4cyclictest0-21swapper/119:50:171
3225115993124,4cyclictest0-21swapper/123:20:001
322511599311,25cyclictest0-21swapper/119:25:321
322511299314,20cyclictest2911686-1kworker/0:0H+mmc_complete00:20:150
3225115993022,5cyclictest0-21swapper/119:25:001
3225115993022,5cyclictest0-21swapper/119:25:001
3225115993022,4cyclictest0-21swapper/123:35:011
3225115993020,5cyclictest0-21swapper/100:30:281
322511599301,4cyclictest3236221-21tr20:20:271
322511599301,23cyclictest0-21swapper/121:45:111
3225112993015,14cyclictest0-21swapper/019:25:530
3225115992819,7cyclictest231ktimers/122:45:231
3225115992819,6cyclictest0-21swapper/121:15:291
3225115992720,4cyclictest3225109-21cyclictest00:09:591
3225115992719,5cyclictest0-21swapper/119:20:001
3225116992616,5cyclictest0-21swapper/219:10:012
3225116992515,5cyclictest0-21swapper/219:30:012
3225115992415,7cyclictest1660-21snmpd19:36:091
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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