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2026-03-23 - 14:23

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 Mon Mar 23, 2026 00:44:47)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
25389519910092,6cyclictest0-21swapper/121:25:011
253895099762,61cyclictest0-21swapper/020:35:110
253895099732,6cyclictest2550257-21munin-run20:15:000
2538950997133,4cyclictest167350irq/118-8000000.ethernet-tx019:50:250
253895399691,24cyclictest0-21swapper/223:15:012
253895399691,24cyclictest0-21swapper/223:15:012
2538950996935,31cyclictest2593409-21proc_pri00:25:280
2538950996724,9cyclictest0-21swapper/019:30:210
2538950996724,9cyclictest0-21swapper/019:30:210
2538951996654,9cyclictest231ktimers/122:35:111
2538950996627,3cyclictest0-21swapper/020:20:140
2538950996332,4cyclictest167350irq/118-8000000.ethernet-tx000:20:270
2538950996321,15cyclictest0-21swapper/023:35:150
253895099623,4cyclictest2594076-21ssh00:30:210
2538951996144,11cyclictest2568262-21sendmail22:00:001
2538950996126,7cyclictest2557014-21grep20:50:290
253895099601,4cyclictest0-21swapper/023:15:000
253895099601,37cyclictest0-21swapper/020:25:280
253895099601,36cyclictest0-21swapper/022:15:150
2538950995926,8cyclictest0-21swapper/023:55:220
2538950995829,4cyclictest20850irq/208-8000000.ethernet19:15:240
2538950995747,4cyclictest0-21swapper/023:30:130
2538950995747,4cyclictest0-21swapper/023:30:130
253895199553,26cyclictest0-21swapper/119:20:011
253895099551,52cyclictest0-21swapper/020:55:140
2538950995430,2cyclictest0-21swapper/023:05:010
2538951995343,6cyclictest2563763-21grep21:30:301
2538951995340,7cyclictest2577641-21munin-plugin-st22:55:001
2538951995340,7cyclictest2577641-21munin-plugin-st22:55:001
2538950995345,4cyclictest0-21swapper/021:00:110
2538951995240,8cyclictest1283-21cron21:55:001
2538950995115,13cyclictest0-21swapper/023:20:280
2538950995015,30cyclictest20850irq/208-8000000.ethernet19:15:020
253895199495,9cyclictest2550266-21apt-key20:15:011
2538951994837,7cyclictest2558798-21cron21:05:001
2538951994832,11cyclictest0-21swapper/119:15:281
2538950994836,9cyclictest0-21swapper/022:00:300
253895099481,2cyclictest0-21swapper/023:45:010
2538951994737,5cyclictest2565652-21munin-plugin-st21:45:001
2538951994735,8cyclictest2544251-21sh19:40:001
2538951994734,9cyclictest2547654-21apt-get20:00:011
2538950994736,8cyclictest2545116-21munin-plugin-st19:45:000
2538951994629,13cyclictest231ktimers/121:35:111
2538951994625,14cyclictest231ktimers/123:30:161
2538951994625,14cyclictest231ktimers/123:30:161
2538951994619,13cyclictest231ktimers/122:00:131
253895099461,43cyclictest0-21swapper/020:15:140
2538953994528,10cyclictest0-21swapper/222:35:182
2538951994531,9cyclictest0-21swapper/123:10:271
2538950994539,3cyclictest0-21swapper/021:05:280
253895099451,40cyclictest0-21swapper/020:00:130
2538953994425,10cyclictest0-21swapper/221:40:022
253895399442,37cyclictest2569848-21unixbench_multi22:05:282
2538951994428,9cyclictest0-21swapper/100:25:231
2538950994437,4cyclictest167350irq/118-8000000.ethernet-tx023:05:270
2538950994425,8cyclictest0-21swapper/020:00:020
253895099441,41cyclictest0-21swapper/021:20:260
2538953994336,4cyclictest0-21swapper/221:50:302
2538953994332,8cyclictest2547639-21sendmail19:59:592
2538953994326,12cyclictest0-21swapper/219:10:002
2538951994330,8cyclictest0-21swapper/120:55:281
2538951994326,11cyclictest231ktimers/123:55:151
2538951994323,14cyclictest0-21swapper/122:40:301
2538950994336,4cyclictest167350irq/118-8000000.ethernet-tx021:30:230
2538950994329,9cyclictest0-21swapper/019:35:200
2538950994328,11cyclictest0-21swapper/022:35:220
253895399426,5cyclictest0-21swapper/200:00:012
2538951994225,14cyclictest22-21rcuc/120:40:011
2538950994234,5cyclictest0-21swapper/023:50:270
2538950994229,9cyclictest0-21swapper/021:10:270
253895099421,39cyclictest0-21swapper/023:45:120
2538953994130,6cyclictest0-21swapper/223:45:002
2538953994128,9cyclictest2573223-21unixbench_multi22:25:292
253895399411,4cyclictest0-21swapper/221:45:012
2538951994130,8cyclictest0-21swapper/123:40:001
2538951994119,16cyclictest231ktimers/121:45:121
253895099411,4cyclictest2578138-21meminfo22:55:220
253895099411,38cyclictest0-21swapper/020:45:220
253895099411,37cyclictest2577020-21grep22:50:160
253895099411,37cyclictest2577020-21grep22:50:160
2538953994031,5cyclictest0-21swapper/221:45:292
2538951994030,7cyclictest2578480-21munin-plugin-st23:00:001
2538951994029,6cyclictest0-21swapper/120:20:261
2538950994035,3cyclictest0-21swapper/020:30:220
2538950994033,4cyclictest167350irq/118-8000000.ethernet-tx023:25:130
2538950994033,4cyclictest0-21swapper/022:30:120
2538950994032,4cyclictest20850irq/208-8000000.ethernet19:25:290
253895099402,4cyclictest2545643-21tail19:45:260
2538950994021,16cyclictest0-21swapper/022:45:180
2538953993934,3cyclictest2570793-21apt22:15:002
2538953993932,4cyclictest0-21swapper/200:25:012
2538953993930,5cyclictest167550irq/134-8000000.ethernet-tx219:40:012
2538953993929,5cyclictest0-21swapper/200:30:262
2538953993927,6cyclictest0-21swapper/223:20:252
2538951993926,9cyclictest0-21swapper/122:20:281
2538951993926,9cyclictest0-21swapper/122:20:271
2538951993925,7cyclictest0-21swapper/120:25:301
2538951993924,7cyclictest0-21swapper/123:45:281
2538951993923,9cyclictest0-21swapper/120:15:291
2538951993920,12cyclictest231ktimers/100:15:111
2538950993934,3cyclictest0-21swapper/022:05:170
2538950993932,4cyclictest167350irq/118-8000000.ethernet-tx022:27:570
2538950993932,4cyclictest0-21swapper/000:10:150
2538950993932,4cyclictest0-21swapper/000:10:150
2538950993930,5cyclictest0-21swapper/022:45:000
253895099392,4cyclictest0-21swapper/021:40:190
253895099392,34cyclictest0-21swapper/000:35:290
253895099391,4cyclictest2568013-21/usr/sbin/munin21:55:260
253895099391,36cyclictest0-21swapper/021:15:270
2538953993826,8cyclictest0-21swapper/222:55:172
2538953993823,10cyclictest0-21swapper/221:25:012
2538951993829,5cyclictest0-21swapper/120:45:281
2538951993826,8cyclictest0-21swapper/120:05:281
2538951993826,8cyclictest0-21swapper/100:30:281
2538951993820,10cyclictest0-21swapper/100:05:271
2538950993830,6cyclictest0-21swapper/019:20:140
253895099381,7cyclictest0-21swapper/019:10:010
253895099381,4cyclictest0-21swapper/023:15:180
253895099381,4cyclictest0-21swapper/023:15:170
253895099381,35cyclictest0-21swapper/022:20:140
253895099381,35cyclictest0-21swapper/022:20:140
253895099381,35cyclictest0-21swapper/000:15:170
2538953993727,5cyclictest0-21swapper/223:50:192
2538953993726,7cyclictest0-21swapper/223:00:292
2538953993725,9cyclictest2555747-21sh20:45:202
2538953993723,9cyclictest0-21swapper/219:50:202
2538953993722,10cyclictest0-21swapper/220:50:212
2538951993729,5cyclictest2592850-21munin-plugin-st00:25:001
2538951993728,5cyclictest0-21swapper/122:45:281
2538951993727,6cyclictest0-21swapper/119:15:021
2538951993726,7cyclictest0-21swapper/121:10:281
2538951993720,10cyclictest0-21swapper/122:10:291
2538953993624,8cyclictest0-21swapper/200:35:232
2538953993621,10cyclictest0-21swapper/222:45:012
253895399361,8cyclictest0-21swapper/222:55:012
253895399361,8cyclictest0-21swapper/222:55:002
2538951993616,16cyclictest22-21rcuc/119:50:011
2538950993621,13cyclictest0-21swapper/000:05:250
253895099361,33cyclictest0-21swapper/021:45:110
2538953993524,6cyclictest0-21swapper/220:10:272
2538953993524,5cyclictest0-21swapper/200:10:192
2538953993524,5cyclictest0-21swapper/200:10:192
2538953993524,5cyclictest0-21swapper/200:00:292
253895399352,29cyclictest2569006-21unixbench_multi22:00:292
2538951993528,4cyclictest14-21rcu_preempt22:30:251
2538951993527,4cyclictest0-21swapper/123:10:001
2538951993526,6cyclictest2589280-21sendmail_mailqu00:00:281
2538951993524,7cyclictest0-21swapper/120:30:291
253895199351,4cyclictest0-21swapper/122:30:001
2538950993525,5cyclictest0-21swapper/021:35:250
2538950993517,5cyclictest2523159-1kworker/0:2H+mmc_complete20:10:010
253895099351,32cyclictest0-21swapper/020:40:150
2538953993426,5cyclictest0-21swapper/220:25:302
2538953993426,4cyclictest0-21swapper/220:15:262
2538953993424,5cyclictest0-21swapper/219:45:202
2538953993423,5cyclictest2548517-21head20:00:292
2538953993415,10cyclictest2541934-21/usr/sbin/munin19:25:192
2538951993423,8cyclictest0-21swapper/119:30:291
2538951993423,8cyclictest0-21swapper/119:30:291
2538951993422,8cyclictest0-21swapper/123:25:301
2538951993420,9cyclictest0-21swapper/123:00:281
2538951993420,9cyclictest0-21swapper/121:05:301
253895099341,31cyclictest0-21swapper/021:53:350
253895099341,31cyclictest0-21swapper/021:27:070
2538953993323,7cyclictest0-21swapper/220:25:012
2538953993323,5cyclictest2580952-21grep23:10:272
2538953993322,8cyclictest0-21swapper/223:25:212
2538953993322,7cyclictest0-21swapper/222:30:182
2538953993320,6cyclictest0-21swapper/219:15:012
2538951993326,4cyclictest0-21swapper/100:35:191
2538951993324,5cyclictest47-21kauditd19:55:001
2538951993321,8cyclictest0-21swapper/121:25:281
2538951993321,7cyclictest0-21swapper/123:15:261
2538951993321,7cyclictest0-21swapper/123:15:261
2538950993326,5cyclictest0-21swapper/022:10:170
2538953993224,4cyclictest0-21swapper/220:40:152
2538953993221,7cyclictest0-21swapper/200:05:272
2538953993220,8cyclictest0-21swapper/221:15:192
2538953993218,9cyclictest0-21swapper/222:20:262
2538953993218,9cyclictest0-21swapper/222:20:262
253895399321,2cyclictest0-21swapper/220:10:012
253895199326,15cyclictest2569315-21/usr/sbin/munin22:05:191
253895199321,2cyclictest2570997-21apt-get22:15:151
2538953993125,3cyclictest2571630-21cron22:19:592
253895399312,3cyclictest2557371-21df_inode20:55:172
2538951993121,7cyclictest0-21swapper/123:50:281
2538951993119,7cyclictest0-21swapper/121:15:281
253895199311,3cyclictest2585457-21apt-get23:40:151
2538951993112,4cyclictest8321systemd-network20:04:281
253895199311,24cyclictest0-21swapper/100:10:111
253895199311,24cyclictest0-21swapper/100:10:111
2538951993110,4cyclictest832-21systemd-network19:40:071
253895099311,28cyclictest0-21swapper/000:00:200
2538953993026,2cyclictest0-21swapper/223:30:292
2538953993026,2cyclictest0-21swapper/223:30:282
2538953993025,3cyclictest0-21swapper/200:25:302
2538953993024,4cyclictest0-21swapper/222:45:172
2538953993024,4cyclictest0-21swapper/221:25:162
2538953993021,6cyclictest311ktimers/221:55:282
2538953993019,7cyclictest1660-21snmpd20:30:122
2538953993019,6cyclictest0-21swapper/223:05:192
2538953993019,6cyclictest0-21swapper/221:10:192
253895399301,27cyclictest0-21swapper/221:30:182
253895399301,27cyclictest0-21swapper/221:00:262
2538953992922,4cyclictest0-21swapper/219:40:272
253895399291,26cyclictest0-21swapper/220:35:272
253895199291,6cyclictest0-21swapper/123:25:011
253895199291,26cyclictest0-21swapper/120:40:151
2538953992817,7cyclictest0-21swapper/223:45:282
2538951992818,5cyclictest2542484-21grep19:25:281
2538953992718,5cyclictest0-21swapper/200:15:272
253895199271,2cyclictest0-21swapper/120:55:001
2538953992619,5cyclictest311ktimers/219:20:252
2538953992520,4cyclictest0-21swapper/219:31:132
2538953992520,4cyclictest0-21swapper/219:31:132
2538953992516,5cyclictest0-21swapper/223:35:192
2538953992515,6cyclictest0-21swapper/221:05:302
2538953992510,11cyclictest0-21swapper/219:15:292
2538951992311,5cyclictest0-21swapper/119:10:011
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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