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2026-05-06 - 04:40

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 May 06, 2026 00:44:49)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
366483999676,18cyclictest15-21rcuc/020:40:010
366483999582,2cyclictest0-21swapper/000:25:190
3664839995410,5cyclictest3691367-21apt-get21:45:010
3664842995340,9cyclictest3712567-21grep23:45:301
366483999511,4cyclictest3696020-21df22:10:170
3664843995037,8cyclictest3708443-21munin-plugin-st23:25:002
3664839995038,9cyclictest0-21swapper/000:15:000
3664843994931,12cyclictest0-21swapper/200:15:292
3664842994836,9cyclictest3687137-21sendmail21:20:001
3664839994839,6cyclictest3711819-21munin-plugin-st23:45:000
3664839994831,14cyclictest167350irq/118-8000000.ethernet-tx019:55:250
366483999482,42cyclictest3684341-21ps21:00:260
366483999481,4cyclictest0-21swapper/020:55:180
366483999481,4cyclictest0-21swapper/020:55:180
3664842994727,13cyclictest231ktimers/121:30:111
3664839994640,4cyclictest3700821-21sendmail22:40:000
3664839994640,4cyclictest3700821-21sendmail22:40:000
3664843994513,25cyclictest3673218-21phc2sys19:55:262
3664842994533,8cyclictest0-21swapper/120:25:001
3664839994538,4cyclictest167350irq/118-8000000.ethernet-tx021:15:290
3664839994534,7cyclictest0-21swapper/000:20:300
366483999451,15cyclictest3716119-21apt-get00:10:020
366483999451,15cyclictest3716119-21apt-get00:10:020
3664843994437,4cyclictest3690518-21sendmail21:40:002
3664843994437,4cyclictest3690518-21sendmail21:40:002
3664842994436,4cyclictest3705060-21munin-plugin-st23:05:001
3664842994424,12cyclictest231ktimers/121:20:121
366483999444,11cyclictest15-21rcuc/019:55:010
3664839994436,5cyclictest0-21swapper/023:35:240
3664839994432,8cyclictest0-21swapper/023:30:270
3664839994431,9cyclictest0-21swapper/023:00:290
3664839994429,8cyclictest0-21swapper/021:20:280
366483999441,37cyclictest0-21swapper/019:40:010
366483999441,36cyclictest0-21swapper/023:50:010
3664843994336,4cyclictest0-21swapper/222:05:272
3664843994336,3cyclictest3686294-21munin-plugin-st21:15:002
3664839994332,6cyclictest20850irq/208-8000000.ethernet00:05:010
3664843994231,6cyclictest0-21swapper/220:45:292
3664843994229,8cyclictest0-21swapper/221:00:282
3664843994229,8cyclictest0-21swapper/200:20:312
3664843994227,9cyclictest0-21swapper/223:00:202
3664843994227,10cyclictest0-21swapper/221:50:282
3664843994225,8cyclictest0-21swapper/220:15:272
3664843994225,8cyclictest0-21swapper/220:15:272
366484299425,19cyclictest3708639-21/usr/sbin/munin23:25:181
3664839994235,4cyclictest167350irq/118-8000000.ethernet-tx021:55:210
3664839994235,4cyclictest167350irq/118-8000000.ethernet-tx021:55:210
3664839994235,4cyclictest0-21swapper/023:20:150
3664839994235,3cyclictest167350irq/118-8000000.ethernet-tx020:15:010
3664839994234,4cyclictest3679429-21grep20:30:300
3664839994230,8cyclictest0-21swapper/020:20:290
366483999422,5cyclictest3697730-21diskstats22:20:170
366483999422,3cyclictest0-21swapper/022:55:220
366483999421,36cyclictest0-21swapper/022:50:020
3664843994130,7cyclictest0-21swapper/221:30:272
3664843994129,7cyclictest0-21swapper/223:15:292
3664843994129,7cyclictest0-21swapper/223:15:292
3664843994128,9cyclictest0-21swapper/223:05:322
3664843994127,8cyclictest0-21swapper/222:55:282
3664843994126,8cyclictest0-21swapper/220:10:292
3664843994124,9cyclictest0-21swapper/221:20:282
366484399411,33cyclictest0-21swapper/219:50:292
3664842994132,4cyclictest3670156-21sendmail19:40:001
3664842994131,6cyclictest3719536-21grep00:25:291
3664842994131,6cyclictest3671734-21grep19:45:281
3664842994125,8cyclictest0-21swapper/122:25:201
3664842994125,11cyclictest231ktimers/123:10:121
3664842994124,12cyclictest231ktimers/119:25:121
3664842994124,12cyclictest231ktimers/119:25:121
3664842994124,11cyclictest231ktimers/100:00:161
3664842994123,13cyclictest231ktimers/100:35:131
3664839994134,4cyclictest167350irq/118-8000000.ethernet-tx019:40:240
3664839994133,5cyclictest3698870-21ps22:25:270
3664839994129,8cyclictest0-21swapper/000:00:010
3664839994121,18cyclictest0-21swapper/021:50:200
366483999411,3cyclictest3699495-21ssh22:30:210
3664843994033,4cyclictest3688825-21cron21:30:002
3664843994028,7cyclictest0-21swapper/221:15:292
3664843994026,7cyclictest0-21swapper/223:45:312
3664843994025,10cyclictest0-21swapper/220:30:302
3664842994034,4cyclictest3665639-21cron19:15:001
3664842994030,5cyclictest0-21swapper/120:20:001
3664842994030,5cyclictest0-21swapper/120:20:001
3664842994024,12cyclictest231ktimers/122:20:121
3664839994034,4cyclictest0-21swapper/000:30:020
3664839994032,4cyclictest167350irq/118-8000000.ethernet-tx019:25:230
3664839994032,4cyclictest167350irq/118-8000000.ethernet-tx019:25:230
366483999401,37cyclictest0-21swapper/022:05:110
366483999401,37cyclictest0-21swapper/019:20:300
3664843993931,4cyclictest0-21swapper/221:40:232
3664843993928,6cyclictest3681130-21unixbench_multi20:40:292
3664843993927,8cyclictest0-21swapper/220:25:282
3664843993924,11cyclictest0-21swapper/219:35:282
366484399391,30cyclictest3700465-21kernelversion22:35:252
366484399391,30cyclictest3700465-21kernelversion22:35:252
3664842993929,6cyclictest3693090-21grep21:50:281
3664839993934,2cyclictest0-21swapper/022:00:230
3664839993932,4cyclictest0-21swapper/021:45:240
3664839993927,8cyclictest0-21swapper/020:45:290
3664839993927,8cyclictest0-21swapper/020:40:290
3664839993926,8cyclictest0-21swapper/019:10:300
366483999392,3cyclictest3685457-21latency_hist21:10:000
3664839993923,14cyclictest3701459-21/usr/sbin/munin22:40:270
3664839993923,13cyclictest0-21swapper/019:20:020
366483999391,5cyclictest0-21swapper/000:20:010
366483999391,3cyclictest3705483-21if_eth023:05:240
366483999391,36cyclictest3675238-21/usr/sbin/munin20:05:300
366483999391,36cyclictest0-21swapper/023:10:140
366483999391,36cyclictest0-21swapper/021:10:250
3664843993829,5cyclictest14-21rcu_preempt20:55:172
3664843993829,5cyclictest14-21rcu_preempt20:55:172
3664843993827,6cyclictest0-21swapper/223:35:282
3664843993823,9cyclictest0-21swapper/220:05:302
366484399381,30cyclictest1660-21snmpd20:35:232
3664842993829,4cyclictest0-21swapper/123:55:271
3664842993829,4cyclictest0-21swapper/123:30:181
3664842993829,4cyclictest0-21swapper/122:05:281
3664842993826,7cyclictest3703256-21grep22:50:291
3664842993826,7cyclictest0-21swapper/120:25:281
3664842993823,11cyclictest231ktimers/120:55:141
3664842993823,11cyclictest231ktimers/120:55:141
3664842993822,12cyclictest231ktimers/100:20:141
3664842993822,10cyclictest231ktimers/120:40:131
3664842993821,11cyclictest231ktimers/121:45:121
366484299381,6cyclictest3670374-21apt-get19:40:091
3664842993810,17cyclictest3685650-21/usr/sbin/munin21:10:181
3664839993824,9cyclictest0-21swapper/020:30:010
366483999381,3cyclictest0-21swapper/021:25:230
366483999381,34cyclictest0-21swapper/020:50:290
366483999381,2cyclictest0-21swapper/020:00:280
366484399375,25cyclictest3677633-21cut20:20:272
3664843993725,7cyclictest0-21swapper/222:30:292
3664843993722,8cyclictest0-21swapper/223:45:002
366484399371,5cyclictest30-21rcuc/219:10:292
3664842993725,8cyclictest0-21swapper/121:45:011
3664842993725,8cyclictest0-21swapper/121:25:281
3664842993724,9cyclictest231ktimers/120:50:141
3664842993723,9cyclictest231ktimers/123:20:111
3664842993722,10cyclictest231ktimers/123:50:121
3664842993721,11cyclictest231ktimers/121:05:151
366484299371,29cyclictest0-21swapper/123:05:291
3664839993728,5cyclictest131ktimers/021:35:300
3664839993728,5cyclictest131ktimers/021:35:300
3664839993721,14cyclictest0-21swapper/022:15:150
366483999371,3cyclictest3721261-21awk00:35:280
366483999371,2cyclictest0-21swapper/021:30:020
3664843993627,5cyclictest0-21swapper/219:20:292
3664843993626,5cyclictest0-21swapper/200:00:022
3664843993624,7cyclictest3693592-21cut21:55:212
3664843993624,7cyclictest3693592-21cut21:55:212
3664843993624,7cyclictest0-21swapper/221:45:292
3664843993623,9cyclictest0-21swapper/200:10:012
3664843993623,9cyclictest0-21swapper/200:10:012
3664842993627,5cyclictest0-21swapper/119:30:271
3664842993625,6cyclictest3720404-21grep00:30:281
3664842993623,8cyclictest231ktimers/100:05:131
3664842993623,8cyclictest231ktimers/100:05:131
3664842993619,10cyclictest231ktimers/119:15:151
3664839993630,4cyclictest0-21swapper/019:49:170
3664839993629,4cyclictest20850irq/208-8000000.ethernet23:25:190
3664843993528,4cyclictest167550irq/134-8000000.ethernet-tx200:10:232
3664843993527,5cyclictest3720527-21cron00:35:002
3664843993527,4cyclictest167550irq/134-8000000.ethernet-tx220:50:232
3664843993525,4cyclictest0-21swapper/219:40:182
3664843993524,7cyclictest0-21swapper/223:25:282
3664843993522,7cyclictest0-21swapper/222:15:292
366484399351,2cyclictest0-21swapper/219:10:002
3664842993528,4cyclictest167450irq/126-8000000.ethernet-tx100:15:121
3664842993525,5cyclictest0-21swapper/119:20:291
3664842993522,9cyclictest0-21swapper/123:20:021
3664842993522,9cyclictest0-21swapper/123:20:011
3664842993522,9cyclictest0-21swapper/120:35:281
3664842993522,10cyclictest231ktimers/122:10:131
3664842993521,9cyclictest231ktimers/120:00:121
3664842993521,9cyclictest0-21swapper/122:30:201
366484299351,30cyclictest1660-21snmpd19:50:131
3664839993530,3cyclictest0-21swapper/023:50:190
3664839993524,7cyclictest0-21swapper/020:15:270
3664839993524,7cyclictest0-21swapper/020:15:270
3664842993425,5cyclictest0-21swapper/122:55:251
3664842993419,9cyclictest231ktimers/122:00:151
3664839993428,4cyclictest0-21swapper/019:30:130
3664843993325,4cyclictest167550irq/134-8000000.ethernet-tx200:35:232
3664843993325,4cyclictest0-21swapper/222:45:292
3664843993324,6cyclictest0-21swapper/223:30:272
3664843993323,7cyclictest0-21swapper/222:25:302
3664843993323,6cyclictest0-21swapper/223:10:282
3664843993323,6cyclictest0-21swapper/200:25:302
3664842993327,4cyclictest167450irq/126-8000000.ethernet-tx121:00:281
3664842993319,4cyclictest0-21swapper/120:00:011
3664843993224,6cyclictest3712855-21/usr/sbin/munin23:50:222
3664843993222,6cyclictest0-21swapper/221:05:302
3664843993221,4cyclictest0-21swapper/200:00:282
366484399321,25cyclictest0-21swapper/219:15:032
366484299322,4cyclictest3710619-21meminfo23:35:241
3664842993219,9cyclictest0-21swapper/122:45:291
3664839993219,8cyclictest0-21swapper/023:15:290
3664839993219,8cyclictest0-21swapper/023:15:290
366483999321,5cyclictest3702787-21diskstats22:50:190
3664843993124,3cyclictest1258-21in:imuxsock22:55:002
3664843993120,8cyclictest0-21swapper/222:10:272
3664842993120,7cyclictest3694082-21sendmail-msp22:00:001
3664842993120,7cyclictest3694082-21sendmail-msp22:00:001
3664842993120,6cyclictest231ktimers/120:30:301
3664842993118,9cyclictest231ktimers/120:05:151
3664843993022,6cyclictest3668416-21unixbench_singl19:25:292
3664843993022,6cyclictest3668416-21unixbench_singl19:25:292
3664843993017,10cyclictest0-21swapper/222:40:262
366484399301,2cyclictest0-21swapper/222:00:192
3664842993021,6cyclictest0-21swapper/100:10:281
3664842993015,11cyclictest0-21swapper/122:35:191
3664842993015,11cyclictest0-21swapper/122:35:181
3664842992923,3cyclictest0-21swapper/121:35:301
3664842992923,3cyclictest0-21swapper/121:35:301
3664842992917,9cyclictest231ktimers/122:15:131
366483999292,3cyclictest0-21swapper/019:10:010
3664843992818,7cyclictest0-21swapper/220:05:012
3664843992817,8cyclictest0-21swapper/222:20:242
366484299281,25cyclictest0-21swapper/123:43:391
3664843992619,5cyclictest3671937-21grep19:50:012
3664842992618,4cyclictest0-21swapper/122:45:001
3664842992614,8cyclictest0-21swapper/120:10:221
366484299261,3cyclictest0-21swapper/120:47:371
3664843992419,3cyclictest3668671-21/usr/sbin/munin19:30:242
3664842992314,6cyclictest0-21swapper/119:10:001
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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