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2026-04-12 - 04:33

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 Sun Apr 12, 2026 00:44:49)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3443051996146,11cyclictest231ktimers/120:10:161
344304999603,52cyclictest3491791-21unixbench_singl23:50:290
3443049995926,28cyclictest0-21swapper/020:35:260
3443051995810,23cyclictest3459427-21apt-get20:45:021
3443049995548,5cyclictest3494384-21munin-plugin-st00:10:010
3443049995441,11cyclictest3459542-21cat20:45:010
344305399539,31cyclictest30-21rcuc/219:30:172
3443051995335,15cyclictest231ktimers/119:30:121
3443049995345,5cyclictest3488478-21munin-plugin-st23:35:000
3443049995312,14cyclictest12-21ksoftirqd/021:25:010
3443049995312,14cyclictest12-21ksoftirqd/021:25:010
344304999531,16cyclictest12-21ksoftirqd/023:45:010
344304999531,16cyclictest12-21ksoftirqd/023:45:010
3443051995242,7cyclictest3498613-21munin-plugin-st00:35:001
3443051995118,27cyclictest0-21swapper/120:05:221
344305399508,4cyclictest0-21swapper/221:30:002
344304999502,11cyclictest12-21ksoftirqd/021:00:010
3443049995014,33cyclictest3489160-21/usr/sbin/munin23:35:270
3443053994940,5cyclictest3445841-21munin-plugin-st19:25:002
3443051994931,12cyclictest231ktimers/120:15:131
344304999494,8cyclictest0-21swapper/023:20:000
344304999494,43cyclictest15-21rcuc/021:45:010
344304999494,43cyclictest15-21rcuc/021:45:010
3443049994940,5cyclictest3496812-21grep00:20:260
3443053994833,10cyclictest3494384-21munin-plugin-st00:10:002
344304999484,41cyclictest0-21swapper/020:15:280
3443049994811,3cyclictest3455755-21/usr/sbin/munin20:20:240
3443051994734,9cyclictest3475730-21sendmail22:20:001
3443051994734,9cyclictest3475730-21sendmail22:20:001
3443051994733,9cyclictest231ktimers/121:20:131
3443051994733,9cyclictest231ktimers/121:20:131
3443049994740,4cyclictest20650irq/252-8000000.ethernet23:45:170
344304999473,3cyclictest15-21rcuc/019:45:170
3443051994637,5cyclictest0-21swapper/122:45:291
3443051994636,7cyclictest0-21swapper/122:30:301
3443051994630,8cyclictest0-21swapper/119:25:291
3443051994626,16cyclictest0-21swapper/123:50:001
3443051994616,13cyclictest3478456-21/usr/sbin/munin22:35:191
3443051994615,25cyclictest0-21swapper/120:35:241
3443049994634,9cyclictest3449212-21apt-get19:45:020
3443049994626,10cyclictest0-21swapper/019:35:010
344304999462,4cyclictest3464940-21tune2fs21:15:220
344304999461,10cyclictest0-21swapper/020:00:010
3443053994535,6cyclictest3489323-21munin-plugin-st23:40:002
3443051994529,9cyclictest0-21swapper/123:15:291
3443051994529,11cyclictest0-21swapper/119:15:011
3443051994529,11cyclictest0-21swapper/119:15:011
3443051994525,11cyclictest0-21swapper/122:20:281
3443049994537,4cyclictest0-21swapper/022:45:010
3443049994534,8cyclictest0-21swapper/000:10:270
3443053994437,4cyclictest3492691-21sendmail00:00:002
3443053994423,15cyclictest311ktimers/219:35:112
3443051994434,6cyclictest3494384-21munin-plugin-st00:10:001
3443051994432,8cyclictest3448304-21grep19:35:271
3443049994438,3cyclictest0-21swapper/023:55:290
3443049994437,4cyclictest167350irq/118-8000000.ethernet-tx022:50:250
3443049994425,14cyclictest20850irq/208-8000000.ethernet00:25:130
3443049994417,24cyclictest131ktimers/021:30:110
344304999441,38cyclictest0-21swapper/022:00:010
3443053994331,8cyclictest3468810-21sendmail21:40:002
3443051994330,8cyclictest0-21swapper/123:35:011
3443051994329,9cyclictest0-21swapper/120:55:281
344304999432,5cyclictest3482961-21/usr/sbin/munin23:00:240
344304999431,6cyclictest3457644-21sed20:30:300
3443053994234,4cyclictest0-21swapper/220:30:302
3443053994232,5cyclictest0-21swapper/200:25:302
3443051994225,9cyclictest0-21swapper/121:15:231
344304999426,4cyclictest0-21swapper/023:25:140
344304999424,5cyclictest0-21swapper/020:45:020
3443049994236,3cyclictest20650irq/252-8000000.ethernet21:10:170
344304999422,37cyclictest0-21swapper/022:15:240
344304999422,37cyclictest0-21swapper/022:15:240
344304999421,39cyclictest0-21swapper/021:05:290
3443053994133,4cyclictest0-21swapper/223:10:002
3443053994130,6cyclictest0-21swapper/223:00:302
3443051994133,4cyclictest3479958-21munin-plugin-st22:45:001
3443051994128,8cyclictest0-21swapper/120:25:281
3443051994127,9cyclictest0-21swapper/121:10:291
3443051994125,11cyclictest0-21swapper/123:35:201
3443049994135,3cyclictest3474315-21diskstats22:10:190
3443049994133,5cyclictest3477313-21sed22:25:260
344304999411,4cyclictest3473070-21mailstats22:00:270
344304999411,38cyclictest0-21swapper/021:50:200
344304999411,38cyclictest0-21swapper/021:50:200
3443053994017,14cyclictest311ktimers/219:40:112
3443051994032,4cyclictest3451819-21cron20:00:001
3443051994028,8cyclictest0-21swapper/120:45:011
3443051994027,9cyclictest0-21swapper/122:50:291
3443051994027,8cyclictest0-21swapper/121:45:291
3443051994025,8cyclictest0-21swapper/121:00:291
3443051994024,10cyclictest0-21swapper/122:00:261
3443049994034,3cyclictest20650irq/252-8000000.ethernet20:25:230
3443049994033,4cyclictest0-21swapper/000:35:010
3443049994027,9cyclictest3473538-21fschecks_time22:05:210
3443049994023,15cyclictest0-21swapper/020:15:000
344304999401,37cyclictest0-21swapper/000:00:220
344304999400,6cyclictest15-21rcuc/023:10:220
344304999400,6cyclictest15-21rcuc/023:10:220
3443053993930,4cyclictest0-21swapper/221:40:282
3443053993930,4cyclictest0-21swapper/221:40:282
3443053993922,12cyclictest311ktimers/220:50:142
3443053993914,16cyclictest311ktimers/222:40:142
344305399391,2cyclictest0-21swapper/222:55:182
3443051993933,3cyclictest47-21kauditd00:29:591
3443051993926,8cyclictest0-21swapper/123:00:291
3443051993926,8cyclictest0-21swapper/100:20:261
3443051993926,5cyclictest0-21swapper/119:45:261
3443051993925,10cyclictest231ktimers/123:05:141
3443051993923,8cyclictest3490103-21grep23:40:281
3443051993923,8cyclictest3490103-21grep23:40:281
3443051993917,9cyclictest231ktimers/121:35:111
344304999394,31cyclictest3470397-21grep21:45:270
3443049993933,4cyclictest0-21swapper/023:20:200
3443049993932,5cyclictest131ktimers/020:05:190
344304999392,4cyclictest0-21swapper/022:55:210
3443049993910,3cyclictest3483532-21apt-get23:05:120
3443053993830,4cyclictest0-21swapper/221:50:292
3443053993830,4cyclictest0-21swapper/221:50:292
3443053993824,9cyclictest0-21swapper/220:00:282
3443053993812,11cyclictest3454554-21/usr/sbin/munin20:15:192
3443051993830,5cyclictest3491805-21grep23:50:301
3443051993827,4cyclictest14-21rcu_preempt22:55:191
3443051993825,9cyclictest0-21swapper/100:00:301
3443051993825,7cyclictest3449115-21grep19:40:271
3443051993825,7cyclictest0-21swapper/122:05:291
3443051993825,7cyclictest0-21swapper/100:35:301
3443051993822,9cyclictest0-21swapper/120:50:281
3443049993832,4cyclictest0-21swapper/019:10:190
3443049993832,4cyclictest0-21swapper/019:10:180
3443049993817,19cyclictest0-21swapper/022:45:260
344304999381,3cyclictest0-21swapper/019:10:010
344304999381,35cyclictest0-21swapper/021:25:160
344304999381,35cyclictest0-21swapper/020:50:190
3443053993729,4cyclictest0-21swapper/219:55:292
3443053993720,13cyclictest311ktimers/223:30:112
3443051993723,8cyclictest0-21swapper/121:55:211
3443051993720,13cyclictest0-21swapper/100:10:271
3443051993712,15cyclictest231ktimers/123:10:151
3443051993712,15cyclictest231ktimers/123:10:151
344304999373,32cyclictest0-21swapper/019:23:000
3443049993730,4cyclictest167350irq/118-8000000.ethernet-tx019:35:150
3443049993729,5cyclictest3479025-21grep22:35:300
3443049993726,6cyclictest3495992-21sed00:15:280
3443049993717,18cyclictest0-21swapper/000:30:230
3443049993714,5cyclictest3446340-1kworker/0:2H+mmc_complete21:40:020
344304999371,34cyclictest0-21swapper/022:30:160
3443053993624,9cyclictest0-21swapper/219:50:262
3443053993624,9cyclictest0-21swapper/219:50:262
3443053993622,10cyclictest0-21swapper/220:45:012
3443053993621,8cyclictest0-21swapper/200:35:292
3443053993621,10cyclictest0-21swapper/223:45:272
3443053993620,9cyclictest0-21swapper/221:20:292
3443053993620,9cyclictest0-21swapper/221:20:292
3443053993619,12cyclictest311ktimers/223:40:132
3443053993619,12cyclictest311ktimers/223:40:132
3443053993617,11cyclictest311ktimers/220:55:132
3443053993610,18cyclictest3475940-21/usr/sbin/munin22:20:182
3443053993610,11cyclictest3449503-21/usr/sbin/munin19:45:192
3443051993629,5cyclictest0-21swapper/122:25:131
3443051993627,5cyclictest0-21swapper/120:00:271
3443051993624,8cyclictest0-21swapper/119:20:271
3443051993622,7cyclictest1653-21lldpd21:40:111
3443051993622,7cyclictest1653-21lldpd21:40:111
3443051993621,9cyclictest231ktimers/121:50:221
3443051993621,9cyclictest231ktimers/121:50:221
3443049993629,5cyclictest0-21swapper/019:20:010
3443049993629,4cyclictest14-21rcu_preempt19:50:200
3443049993629,4cyclictest14-21rcu_preempt19:50:190
344304999361,33cyclictest0-21swapper/022:20:110
3443053993527,5cyclictest3446039-21/usr/sbin/munin19:25:192
3443053993525,6cyclictest0-21swapper/222:50:292
3443053993524,6cyclictest3498609-21apt-get00:35:012
3443053993522,8cyclictest0-21swapper/222:30:232
3443053993517,11cyclictest0-21swapper/221:15:302
3443053993516,14cyclictest311ktimers/222:05:122
3443053993516,13cyclictest3443045-21cyclictest23:10:142
3443053993516,13cyclictest3443045-21cyclictest23:10:142
3443053993516,13cyclictest311ktimers/221:10:132
344305399351,4cyclictest2219083-1kworker/2:2H+kblockd21:49:242
3443051993525,6cyclictest231ktimers/122:10:221
3443049993529,3cyclictest20850irq/208-8000000.ethernet19:25:290
3443049993521,9cyclictest0-21swapper/021:00:290
344304999351,31cyclictest3452188-21cut20:00:190
3443053993425,4cyclictest0-21swapper/221:00:202
3443053993424,5cyclictest0-21swapper/222:00:202
3443053993418,10cyclictest311ktimers/220:35:162
3443051993426,5cyclictest231ktimers/100:15:261
3443051993425,6cyclictest3450873-21grep19:50:281
3443051993425,6cyclictest3450873-21grep19:50:281
3443051993425,5cyclictest231ktimers/123:55:291
3443051993423,8cyclictest22-21rcuc/123:20:221
3443051993422,8cyclictest0-21swapper/121:30:291
3443051993422,6cyclictest0-21swapper/120:30:191
3443051993417,9cyclictest231ktimers/121:05:271
3443053993326,4cyclictest0-21swapper/200:00:292
3443051993322,7cyclictest0-21swapper/119:15:271
3443053993224,4cyclictest0-21swapper/221:30:202
3443053993223,5cyclictest3475710-21kworker/u8:2-events_freezable_power_22:25:232
3443053993222,6cyclictest0-21swapper/220:15:002
3443053993211,4cyclictest832-21systemd-network20:47:402
3443051993226,4cyclictest14-21rcu_preempt20:20:171
3443053993123,5cyclictest3456837-21grep20:25:292
3443053993122,5cyclictest0-21swapper/200:10:182
3443053993118,8cyclictest0-21swapper/220:05:212
3443053993116,10cyclictest0-21swapper/222:10:292
344305399311,25cyclictest0-21swapper/219:10:112
344305399311,25cyclictest0-21swapper/219:10:112
3443051993120,8cyclictest0-21swapper/123:25:281
3443051993119,8cyclictest0-21swapper/121:25:291
3443053993024,3cyclictest14-21rcu_preempt23:15:282
3443053993021,6cyclictest3475080-21/usr/sbin/munin22:15:122
3443053993021,6cyclictest3475080-21/usr/sbin/munin22:15:122
3443053993020,7cyclictest0-21swapper/221:55:292
3443053993020,6cyclictest0-21swapper/221:05:292
3443053993020,6cyclictest0-21swapper/200:15:192
3443053993016,9cyclictest0-21swapper/223:25:282
3443053992919,7cyclictest0-21swapper/223:55:002
3443053992919,5cyclictest0-21swapper/219:15:272
3443053992821,5cyclictest3480219-21df22:45:182
3443053992817,8cyclictest0-21swapper/223:20:282
3443053992814,9cyclictest0-21swapper/220:20:262
3443051992712,8cyclictest0-21swapper/119:10:011
3443053992619,5cyclictest0-21swapper/200:25:022
344305399251,3cyclictest0-21swapper/222:37:552
3443053992014,3cyclictest0-21swapper/219:10:012
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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