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2026-07-13 - 09:54

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 Mon Jul 13, 2026 00:44:44)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
803085998840,5cyclictest0-21swapper/022:05:150
803085998440,39cyclictest846013-21sendmail23:20:000
803089997830,43cyclictest0-21swapper/120:05:001
803092997729,43cyclictest0-21swapper/320:00:293
803089997328,11cyclictest0-21swapper/119:15:001
803089997140,27cyclictest825369-21cron21:20:001
803089996928,8cyclictest0-21swapper/123:50:281
803089996926,9cyclictest0-21swapper/121:40:291
803089996830,6cyclictest0-21swapper/123:40:281
803089996428,9cyclictest0-21swapper/122:30:301
803085996338,5cyclictest827912-21munin-plugin-st21:35:000
803089996024,30cyclictest0-21swapper/121:05:301
803089995643,9cyclictest840040-21apt-key22:45:011
80308599565,28cyclictest844228-21apt-get23:10:010
803085995636,12cyclictest0-21swapper/019:10:000
803090995546,6cyclictest827803-21grep21:30:302
803085995437,15cyclictest167350irq/118-8000000.ethernet-tx019:40:250
80308999534,30cyclictest0-21swapper/122:10:011
803085995345,4cyclictest167350irq/118-8000000.ethernet-tx021:35:190
803089995238,10cyclictest821998-21munin-plugin-st21:00:001
803085995244,5cyclictest167350irq/118-8000000.ethernet-tx000:00:300
803085995234,15cyclictest167350irq/118-8000000.ethernet-tx023:10:030
803090995034,10cyclictest0-21swapper/220:45:012
803090994936,9cyclictest0-21swapper/222:20:292
803085994941,4cyclictest167350irq/118-8000000.ethernet-tx021:15:160
803090994731,10cyclictest0-21swapper/219:20:002
803089994738,5cyclictest834760-21munin-plugin-st22:15:001
803085994740,4cyclictest167350irq/118-8000000.ethernet-tx022:00:210
80308599473,7cyclictest824505-21users21:10:310
803085994736,8cyclictest0-21swapper/023:25:000
803090994634,8cyclictest829503-21grep21:40:282
80308999461,22cyclictest0-21swapper/120:50:011
80308599461,41cyclictest814077-21/usr/sbin/munin20:10:270
803090994530,7cyclictest0-21swapper/221:10:292
803089994522,16cyclictest0-21swapper/119:25:011
803085994538,4cyclictest815103-21mailstats20:15:300
803085994538,4cyclictest167350irq/118-8000000.ethernet-tx020:50:220
803085994537,4cyclictest167350irq/118-8000000.ethernet-tx022:15:000
80308599452,40cyclictest859553-21unixbench_singl00:35:290
803085994513,29cyclictest807441-21grep19:30:290
803090994434,6cyclictest816021-21unixbench_multi20:20:292
803090994433,7cyclictest849277-21grep23:35:302
803090994433,7cyclictest849277-21grep23:35:302
803090994430,9cyclictest846008-21sendmail23:20:012
803090994428,13cyclictest311ktimers/222:35:142
803089994432,9cyclictest0-21swapper/100:00:321
803089994430,9cyclictest0-21swapper/123:55:291
803085994437,4cyclictest20650irq/252-8000000.ethernet00:25:230
80308599441,4cyclictest830950-21meminfo21:50:250
803090994330,8cyclictest837294-21grep22:25:262
803089994333,5cyclictest0-21swapper/123:10:271
803085994336,4cyclictest167350irq/118-8000000.ethernet-tx023:30:010
80308599432,5cyclictest825897-21meminfo21:20:240
803090994233,5cyclictest852810-21grep23:55:302
803090994232,6cyclictest843293-21grep23:00:292
803090994230,8cyclictest0-21swapper/221:05:222
803090994230,7cyclictest0-21swapper/219:45:282
803090994230,7cyclictest0-21swapper/200:05:272
803090994230,5cyclictest0-21swapper/221:55:202
803090994229,8cyclictest0-21swapper/221:15:292
803090994227,9cyclictest0-21swapper/223:10:222
803089994228,10cyclictest0-21swapper/121:25:001
803085994236,4cyclictest850245-21munin-plugin-st23:45:000
803085994236,4cyclictest0-21swapper/022:25:230
803085994235,4cyclictest0-21swapper/019:50:170
803085994235,4cyclictest0-21swapper/019:10:140
803085994234,5cyclictest167350irq/118-8000000.ethernet-tx000:30:180
803085994227,8cyclictest0-21swapper/020:55:310
80308599421,39cyclictest856442-21/usr/sbin/munin00:20:270
803090994130,7cyclictest0-21swapper/200:00:332
803090994129,8cyclictest0-21swapper/223:05:192
803089994133,4cyclictest813463-21unixbench_multi20:05:301
803089994127,9cyclictest804921-21grep19:15:291
803089994127,10cyclictest0-21swapper/119:25:281
803089994125,10cyclictest0-21swapper/123:20:001
803085994126,9cyclictest0-21swapper/023:50:280
80308599411,5cyclictest836191-21ps22:20:270
80308599411,3cyclictest812629-21/usr/sbin/munin20:05:010
80308599411,13cyclictest838856-21tail22:35:280
803090994028,8cyclictest0-21swapper/220:05:002
803090994027,6cyclictest0-21swapper/222:05:202
803090994024,11cyclictest0-21swapper/200:10:212
803090994024,11cyclictest0-21swapper/200:10:212
803089994027,8cyclictest0-21swapper/120:10:301
803089994026,11cyclictest1283-21cron22:20:001
803089994026,10cyclictest0-21swapper/120:15:311
803089994025,11cyclictest0-21swapper/122:25:261
803089994018,11cyclictest0-21swapper/123:20:231
803085994032,5cyclictest804902-21grep19:15:290
803085994032,5cyclictest0-21swapper/023:45:210
803085994029,8cyclictest0-21swapper/020:05:310
803085994023,15cyclictest0-21swapper/022:40:250
80308599401,4cyclictest854207-21memory00:05:250
80308599401,4cyclictest843126-21processes23:00:280
80308599401,4cyclictest831558-21df_inode21:55:180
80308599401,37cyclictest0-21swapper/000:15:210
803090993930,5cyclictest0-21swapper/221:45:292
803090993930,5cyclictest0-21swapper/200:30:302
803090993929,5cyclictest847651-21grep23:25:292
803090993928,8cyclictest0-21swapper/223:30:272
803090993926,6cyclictest0-21swapper/219:55:282
803090993920,14cyclictest0-21swapper/222:40:272
803089993929,6cyclictest0-21swapper/123:35:011
803089993926,9cyclictest0-21swapper/123:35:311
803089993926,9cyclictest0-21swapper/123:35:301
803089993926,8cyclictest851100-21grep23:45:291
803089993926,8cyclictest0-21swapper/122:35:291
803089993924,10cyclictest0-21swapper/122:55:291
80308599393,5cyclictest806338-21irqstats19:25:220
803085993932,5cyclictest20850irq/208-8000000.ethernet23:30:250
803085993929,6cyclictest830369-21grep21:45:280
803085993925,11cyclictest0-21swapper/000:10:270
803085993925,11cyclictest0-21swapper/000:10:270
80308599392,35cyclictest0-21swapper/020:20:170
80308599392,34cyclictest0-21swapper/019:50:000
80308599391,4cyclictest842087-21tune2fs22:55:220
803090993829,5cyclictest857834-21grep00:25:282
803090993829,5cyclictest828755-21munin-plugin-st21:40:002
803090993824,10cyclictest0-21swapper/219:10:302
803090993821,9cyclictest0-21swapper/222:00:182
803090993819,12cyclictest0-21swapper/223:45:202
80309099381,29cyclictest807757-21/usr/sbin/munin19:35:192
803089993825,9cyclictest0-21swapper/121:45:281
803089993824,9cyclictest0-21swapper/121:50:291
803089993824,6cyclictest0-21swapper/122:45:291
803089993813,18cyclictest167450irq/126-8000000.ethernet-tx119:40:191
803085993831,4cyclictest20650irq/252-8000000.ethernet22:50:130
803085993831,4cyclictest167350irq/118-8000000.ethernet-tx021:25:170
803085993831,3cyclictest0-21swapper/020:45:020
80308599381,35cyclictest0-21swapper/023:35:270
80308599381,35cyclictest0-21swapper/023:35:260
80308599381,35cyclictest0-21swapper/022:30:140
803090993727,6cyclictest0-21swapper/220:55:302
803090993724,7cyclictest850205-21grep23:40:292
803090993724,7cyclictest0-21swapper/223:50:252
803089993729,4cyclictest0-21swapper/100:25:271
803089993726,6cyclictest0-21swapper/120:50:201
803089993723,8cyclictest0-21swapper/123:10:011
803085993730,3cyclictest829112-21cut21:40:200
803085993726,8cyclictest0-21swapper/020:35:300
803085993725,9cyclictest0-21swapper/019:35:270
80308599371,34cyclictest0-21swapper/020:30:310
80309099364,25cyclictest859568-21unixbench_singl00:35:302
803090993626,7cyclictest0-21swapper/223:20:292
803090993626,6cyclictest807514-21grep19:30:292
803090993617,10cyclictest0-21swapper/222:50:202
803089993628,6cyclictest807476-21grep19:30:291
803089993623,9cyclictest0-21swapper/100:35:271
80308999361,30cyclictest0-21swapper/100:30:221
80308999361,29cyclictest822836-21sshd21:02:081
80308999361,29cyclictest822836-21sshd21:02:081
803085993631,3cyclictest0-21swapper/021:00:160
803085993631,3cyclictest0-21swapper/021:00:160
803085993628,4cyclictest20850irq/208-8000000.ethernet22:15:270
803090993527,5cyclictest842490-21grep22:55:292
803090993526,4cyclictest0-21swapper/221:00:282
803090993526,4cyclictest0-21swapper/221:00:272
803090993525,5cyclictest0-21swapper/222:17:002
803090993524,6cyclictest0-21swapper/220:10:222
803090993522,7cyclictest0-21swapper/220:30:302
80309099351,28cyclictest0-21swapper/219:20:222
803089993526,5cyclictest0-21swapper/123:25:171
803089993523,7cyclictest819406-21grep20:40:301
803089993513,15cyclictest167450irq/126-8000000.ethernet-tx122:00:221
80308999351,28cyclictest0-21swapper/121:55:241
80308599352,30cyclictest819936-21/usr/sbin/munin20:45:240
80308599351,8cyclictest840215-21/usr/sbin/munin22:45:110
80308599351,32cyclictest811458-21phc2sys19:55:280
80308599351,32cyclictest0-21swapper/023:55:150
80308599351,2cyclictest0-21swapper/021:05:120
80309099346,20cyclictest816909-21sed20:25:292
803090993427,5cyclictest311ktimers/221:55:012
803090993423,6cyclictest0-21swapper/220:35:302
803090993422,6cyclictest0-21swapper/222:30:312
803090993422,6cyclictest0-21swapper/220:45:282
803090993421,8cyclictest840305-21fschecks_count22:45:192
803090993420,8cyclictest0-21swapper/221:25:292
803089993426,5cyclictest0-21swapper/100:10:311
803089993426,5cyclictest0-21swapper/100:10:311
803089993423,7cyclictest811681-21grep19:55:311
803089993422,8cyclictest0-21swapper/121:10:311
803085993429,3cyclictest0-21swapper/019:21:230
803085993427,3cyclictest816753-21wc20:25:270
80309099335,19cyclictest810897-21sed19:50:292
80309099333,22cyclictest821099-21head20:50:292
80309099333,20cyclictest834645-21unixbench_multi22:10:302
803090993325,5cyclictest0-21swapper/219:25:292
803090993323,6cyclictest857046-21grep00:20:292
803090993323,5cyclictest0-21swapper/221:20:182
803089993323,7cyclictest0-21swapper/119:35:271
803089993320,8cyclictest0-21swapper/120:35:301
803089993310,17cyclictest167450irq/126-8000000.ethernet-tx121:35:161
803089993222,8cyclictest817141-21/usr/sbin/munin20:30:311
803089993219,9cyclictest0-21swapper/121:30:301
80308999321,25cyclictest0-21swapper/120:25:111
803090993122,5cyclictest0-21swapper/220:15:312
803090993121,6cyclictest813450-21unixbench_multi20:05:302
803089993124,4cyclictest0-21swapper/121:30:001
803089993117,9cyclictest0-21swapper/100:20:291
80308999311,25cyclictest0-21swapper/100:18:251
803090993022,4cyclictest0-21swapper/219:40:222
80309099301,23cyclictest0-21swapper/200:15:112
803089993022,5cyclictest854441-21grep00:05:301
803089993022,5cyclictest816044-21grep20:20:291
803089992923,3cyclictest0-21swapper/122:25:001
803089992920,6cyclictest0-21swapper/119:50:291
80308999291,25cyclictest832-21systemd-network22:52:231
803089992719,5cyclictest809454-21/usr/sbin/munin19:45:101
803089992719,4cyclictest0-21swapper/123:00:291
80309099233,11cyclictest803219-21wc19:10:012
803089992211,4cyclictest0-21swapper/119:10:011
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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