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2026-04-21 - 20:09

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 Tue Apr 21, 2026 12:44:48)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3461067996829,6cyclictest3488658-21grep09:45:281
3461067996827,6cyclictest0-21swapper/110:20:271
3461067996637,25cyclictest3465428-21grep07:30:271
3461067996429,30cyclictest0-21swapper/109:20:161
3461067996323,9cyclictest0-21swapper/110:30:231
3461067996316,10cyclictest0-21swapper/110:00:011
3461067996224,5cyclictest0-21swapper/110:05:281
3461067996124,32cyclictest0-21swapper/110:25:291
3461067996124,32cyclictest0-21swapper/110:25:281
3461067996022,9cyclictest0-21swapper/111:40:021
346106799598,19cyclictest3505972-21/usr/sbin/munin11:30:181
3461067995922,8cyclictest0-21swapper/109:35:291
3461067995922,8cyclictest0-21swapper/109:35:281
346106899583,38cyclictest3472381-21apt-get08:15:002
346106799582,31cyclictest3516282-21/usr/sbin/munin12:30:111
3461067995822,5cyclictest0-21swapper/111:05:271
3461067995748,4cyclictest3485984-21munin-plugin-st09:35:001
3461067995624,5cyclictest0-21swapper/109:20:011
3461067995623,11cyclictest231ktimers/109:40:051
3461067995522,6cyclictest0-21swapper/111:20:281
3461064995538,9cyclictest3492027-21head10:05:280
346106499551,13cyclictest0-21swapper/007:55:000
3461067995326,21cyclictest0-21swapper/107:50:291
3461064995348,2cyclictest0-21swapper/009:20:160
3461067995221,5cyclictest0-21swapper/111:50:001
3461067995221,5cyclictest0-21swapper/111:49:591
3461064995244,5cyclictest0-21swapper/009:40:020
3461064995244,5cyclictest0-21swapper/009:40:020
3461068995043,4cyclictest3463857-21munin-plugin-st07:24:592
3461068995041,6cyclictest3505764-21cron11:30:012
3461068994938,8cyclictest3473320-21sendmail08:20:012
3461068994938,8cyclictest3473320-21sendmail08:20:002
3461067994911,25cyclictest3466376-21apt-get07:40:001
346106499491,40cyclictest0-21swapper/010:00:180
3461064994839,7cyclictest3506612-21munin-plugin-st11:35:000
346106499483,4cyclictest1-21systemd09:55:150
346106499481,45cyclictest0-21swapper/007:20:260
346106499481,2cyclictest0-21swapper/011:50:190
3461068994739,4cyclictest3490388-21sendmail10:00:002
3461068994738,6cyclictest3507444-21cron11:39:592
3461068994714,27cyclictest3517360-21if_eth012:35:242
3461067994738,5cyclictest167450irq/126-8000000.ethernet-tx112:15:261
3461064994726,16cyclictest131ktimers/009:15:120
3461068994636,6cyclictest3470706-21munin-plugin-st08:04:592
3461067994638,5cyclictest3515246-21munin-plugin-st12:25:001
3461064994640,3cyclictest167350irq/118-8000000.ethernet-tx011:40:120
3461064994639,4cyclictest167350irq/118-8000000.ethernet-tx011:35:250
3461068994532,8cyclictest0-21swapper/208:25:002
3461067994531,8cyclictest3478319-21grep08:45:281
346106499452,41cyclictest0-21swapper/011:00:210
346106499451,41cyclictest3481215-21fschecks_count09:05:190
346106499451,41cyclictest0-21swapper/011:45:290
346106499451,41cyclictest0-21swapper/011:45:290
3461064994437,3cyclictest0-21swapper/008:45:260
3461064994430,10cyclictest0-21swapper/007:10:200
346106499442,40cyclictest0-21swapper/007:55:110
3461064994335,5cyclictest3516926-21munin-plugin-st12:35:010
3461064994330,8cyclictest3497144-21grep10:35:300
3461064994330,8cyclictest0-21swapper/008:10:280
346106499432,39cyclictest0-21swapper/009:30:240
346106499431,40cyclictest0-21swapper/011:20:290
3461068994234,5cyclictest3484307-21munin-plugin-st09:25:002
3461068994234,5cyclictest3462999-21run-parts07:20:002
3461068994228,9cyclictest0-21swapper/209:25:272
3461067994233,5cyclictest3473592-21df08:20:151
3461064994235,4cyclictest20850irq/208-8000000.ethernet07:40:010
3461064994234,5cyclictest0-21swapper/012:20:070
3461064994228,11cyclictest0-21swapper/010:30:280
346106499422,5cyclictest3488874-21cat09:50:020
346106499421,4cyclictest0-21swapper/010:20:260
3461068994132,4cyclictest0-21swapper/210:50:282
3461068994125,9cyclictest0-21swapper/208:45:002
3461067994132,5cyclictest0-21swapper/108:55:281
3461064994135,3cyclictest167350irq/118-8000000.ethernet-tx009:00:120
3461064994131,5cyclictest0-21swapper/008:20:270
3461064994129,8cyclictest3480081-21sendmail09:00:010
3461064994127,9cyclictest0-21swapper/010:25:290
3461064994127,9cyclictest0-21swapper/010:25:280
3461064994125,11cyclictest0-21swapper/008:40:280
346106499411,4cyclictest0-21swapper/012:35:270
346106499411,38cyclictest0-21swapper/011:15:190
346106499411,38cyclictest0-21swapper/010:15:270
346106499411,38cyclictest0-21swapper/010:15:270
346106499411,37cyclictest0-21swapper/007:30:010
3461068994031,4cyclictest0-21swapper/211:50:292
346106799401,8cyclictest0-21swapper/107:25:011
3461067994018,7cyclictest2181224-1kworker/1:2H+kblockd08:25:201
346106799401,2cyclictest0-21swapper/108:40:011
3461064994033,5cyclictest3473250-21grep08:15:290
3461064994033,5cyclictest3473250-21grep08:15:290
3461064994028,9cyclictest0-21swapper/008:30:290
346106499401,37cyclictest0-21swapper/007:40:160
346106899398,17cyclictest30-21rcuc/209:45:012
346106899394,10cyclictest30-21rcuc/209:20:012
3461068993928,8cyclictest3497233-21sendmail10:40:002
3461068993924,9cyclictest0-21swapper/211:55:262
3461068993918,14cyclictest311ktimers/210:10:102
346106899391,2cyclictest0-21swapper/208:55:002
3461064993934,3cyclictest0-21swapper/011:05:200
3461064993932,4cyclictest20850irq/208-8000000.ethernet12:00:270
3461064993932,4cyclictest167350irq/118-8000000.ethernet-tx012:15:280
3461064993931,6cyclictest0-21swapper/010:50:120
3461064993931,5cyclictest3505764-21cron11:30:010
3461064993928,6cyclictest3510828-21grep11:55:340
3461064993927,8cyclictest0-21swapper/009:25:210
3461064993926,8cyclictest0-21swapper/007:15:290
3461064993923,14cyclictest0-21swapper/012:05:290
346106499391,36cyclictest0-21swapper/010:55:210
346106499391,36cyclictest0-21swapper/010:40:260
346106499391,36cyclictest0-21swapper/008:25:230
346106499391,35cyclictest0-21swapper/010:10:250
3461068993831,3cyclictest0-21swapper/212:25:302
3461068993829,5cyclictest0-21swapper/209:35:162
3461068993829,5cyclictest0-21swapper/209:35:162
3461068993821,8cyclictest0-21swapper/209:00:002
3461068993820,9cyclictest0-21swapper/207:25:272
346106899381,29cyclictest0-21swapper/207:10:222
3461067993830,4cyclictest0-21swapper/111:15:291
3461067993827,7cyclictest0-21swapper/110:20:011
3461067993827,7cyclictest0-21swapper/110:20:001
3461064993826,8cyclictest0-21swapper/009:50:260
3461068993723,8cyclictest0-21swapper/210:45:282
3461068993722,9cyclictest0-21swapper/211:00:262
3461067993723,9cyclictest0-21swapper/111:40:061
3461064993726,7cyclictest0-21swapper/011:10:280
3461064993725,9cyclictest0-21swapper/012:10:280
346106499371,34cyclictest0-21swapper/009:40:290
346106499371,34cyclictest0-21swapper/008:53:440
3461068993629,5cyclictest167550irq/134-8000000.ethernet-tx212:15:142
3461068993628,4cyclictest0-21swapper/207:40:312
3461068993621,8cyclictest0-21swapper/207:50:292
3461067993628,5cyclictest3511739-21grep12:00:271
3461067993626,4cyclictest0-21swapper/112:35:231
3461067993625,7cyclictest0-21swapper/107:25:291
346106799361,3cyclictest0-21swapper/110:05:011
3461064993630,3cyclictest20850irq/208-8000000.ethernet08:10:020
3461064993630,3cyclictest20850irq/208-8000000.ethernet08:10:020
346106499361,4cyclictest0-21swapper/008:01:360
3461068993527,5cyclictest0-21swapper/210:05:282
3461068993525,5cyclictest0-21swapper/208:30:222
3461068993522,8cyclictest311ktimers/211:10:072
3461068993522,7cyclictest0-21swapper/210:30:292
346106899351,28cyclictest0-21swapper/207:30:252
3461067993523,5cyclictest0-21swapper/110:10:261
3461067993522,9cyclictest0-21swapper/107:10:291
3461067993520,7cyclictest0-21swapper/109:00:281
3461067993518,9cyclictest0-21swapper/112:05:261
346106799351,29cyclictest0-21swapper/107:45:271
3461064993529,3cyclictest167350irq/118-8000000.ethernet-tx012:25:170
3461064993529,3cyclictest0-21swapper/009:10:130
3461064993529,3cyclictest0-21swapper/009:10:130
3461064993526,5cyclictest0-21swapper/008:35:290
346106499351,6cyclictest0-21swapper/010:50:010
346106499351,4cyclictest0-21swapper/007:48:430
346106499351,32cyclictest0-21swapper/007:31:110
3461068993426,4cyclictest0-21swapper/207:45:282
3461068993425,4cyclictest0-21swapper/211:20:212
3461068993423,7cyclictest3489434-21unixbench_multi09:50:292
346106899341,7cyclictest30-21rcuc/209:10:302
346106899341,7cyclictest30-21rcuc/209:10:302
3461068993414,13cyclictest311ktimers/209:40:112
3461067993426,4cyclictest0-21swapper/112:25:291
3461067993422,6cyclictest0-21swapper/111:50:291
346106799341,27cyclictest0-21swapper/108:15:151
346106799341,27cyclictest0-21swapper/108:15:151
3461068993322,7cyclictest0-21swapper/212:00:272
3461068993322,6cyclictest3466261-21grep07:35:282
3461068993320,6cyclictest0-21swapper/209:34:592
3461068993318,7cyclictest0-21swapper/210:25:272
3461068993318,7cyclictest0-21swapper/210:25:272
346106899331,27cyclictest0-21swapper/211:45:282
346106899331,27cyclictest0-21swapper/211:45:282
346106899331,26cyclictest0-21swapper/208:45:142
3461067993326,4cyclictest167450irq/126-8000000.ethernet-tx109:25:151
3461067993325,4cyclictest3489487-21grep09:50:291
3461067993323,6cyclictest0-21swapper/110:35:321
3461067993318,8cyclictest0-21swapper/107:55:271
346106799331,25cyclictest1660-21snmpd08:13:411
3461067993224,4cyclictest3471545-21munin-plugin-st08:10:011
3461067993224,4cyclictest3471545-21munin-plugin-st08:10:011
3461067993223,4cyclictest0-21swapper/108:40:291
3461067993222,7cyclictest0-21swapper/107:15:291
3461067993219,6cyclictest1653-21lldpd07:42:241
346106799321,26cyclictest0-21swapper/108:30:211
346106799321,25cyclictest0-21swapper/112:10:251
3461068993124,4cyclictest3515179-21head12:20:292
3461068993120,8cyclictest0-21swapper/212:35:022
3461068993120,7cyclictest3506551-21grep11:30:282
346106899311,4cyclictest3493374-21irqstats10:15:212
346106899311,4cyclictest3493374-21irqstats10:15:212
346106799312,4cyclictest3505434-21meminfo11:25:251
346106799312,4cyclictest3478891-21memory08:50:251
3461067993122,6cyclictest231ktimers/109:05:181
3461067993121,6cyclictest3499717-21grep10:50:291
3461067993120,7cyclictest0-21swapper/111:55:351
3461067993119,8cyclictest0-21swapper/111:10:291
346106799311,24cyclictest0-21swapper/110:55:261
346106899302,4cyclictest3508020-21irqstats11:40:212
3461068993023,4cyclictest3512563-21grep12:05:292
3461068993017,7cyclictest3494547-21grep10:20:292
346106899301,24cyclictest0-21swapper/208:25:132
346106799301,22cyclictest0-21swapper/108:01:251
3461068992922,4cyclictest167550irq/134-8000000.ethernet-tx212:10:142
3461068992922,3cyclictest3481933-21latency_hist09:10:012
3461068992919,6cyclictest0-21swapper/208:05:242
3461068992919,6cyclictest0-21swapper/208:05:242
3461068992918,6cyclictest0-21swapper/210:45:022
346106899291,4cyclictest0-21swapper/210:05:012
346106899291,3cyclictest0-21swapper/210:55:192
3461067992917,6cyclictest231ktimers/109:10:191
3461067992917,6cyclictest231ktimers/109:10:191
3461068992819,4cyclictest0-21swapper/211:10:012
346106799281,25cyclictest0-21swapper/110:40:271
3461068992720,4cyclictest0-21swapper/207:55:272
3461068992716,6cyclictest3480866-21head09:00:292
3461068992619,4cyclictest0-21swapper/208:35:162
3461067992618,4cyclictest0-21swapper/111:00:271
3461068992518,4cyclictest3504029-21head11:15:292
3461067992518,4cyclictest0-21swapper/110:45:211
346106499241,18cyclictest0-21swapper/007:10:000
346106899211,15cyclictest3461116-21latency_hist07:10:012
3461067991911,6cyclictest3461073-21wc07:10:001
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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