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2026-04-11 - 08:15

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 Sat Apr 11, 2026 00:44:47)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
255337199497,9cyclictest0-21swapper/019:30:180
2553375994836,8cyclictest0-21swapper/221:34:592
2553371994837,8cyclictest2570606-21unixbench_singl20:45:280
2553372994736,8cyclictest2609893-21sendmail00:40:001
2553375994635,6cyclictest2564726-21grep20:10:282
2553375994634,6cyclictest2605510-21grep00:10:292
255337299463,5cyclictest0-21swapper/120:30:021
2553371994630,9cyclictest0-21swapper/000:25:290
2553375994538,4cyclictest2566463-21munin-plugin-st20:25:002
2553375994538,3cyclictest2568977-21cron20:40:002
2553375994534,6cyclictest2598695-21grep23:30:292
2553375994532,8cyclictest0-21swapper/221:25:282
2553371994533,9cyclictest0-21swapper/022:40:000
2553371994521,20cyclictest0-21swapper/023:25:200
255337199451,7cyclictest0-21swapper/023:00:010
2553375994434,5cyclictest0-21swapper/223:15:282
2553375994430,10cyclictest0-21swapper/223:45:212
2553372994430,9cyclictest0-21swapper/120:40:291
2553372994428,12cyclictest0-21swapper/119:45:291
2553371994420,19cyclictest2581937-21/usr/sbin/munin21:55:180
2553371994413,25cyclictest2554171-21latency_hist19:15:010
2553371994413,25cyclictest2554171-21latency_hist19:15:010
2553375994332,5cyclictest0-21swapper/219:55:212
2553372994335,4cyclictest2597032-21cron23:25:001
2553372994333,6cyclictest2590972-21grep22:45:301
2553372994329,7cyclictest0-21swapper/120:50:271
255337299431,12cyclictest0-21swapper/119:10:011
2553371994331,8cyclictest0-21swapper/020:30:280
2553371994330,9cyclictest0-21swapper/023:40:270
2553371994330,9cyclictest0-21swapper/023:40:270
2553371994329,9cyclictest0-21swapper/023:45:280
2553375994233,5cyclictest2569836-21munin-run20:45:002
2553375994232,6cyclictest2602077-21grep23:50:262
2553375994231,5cyclictest0-21swapper/222:50:282
2553375994228,9cyclictest0-21swapper/219:50:292
2553375994226,9cyclictest0-21swapper/223:55:252
2553375994225,13cyclictest311ktimers/219:40:152
2553375994225,12cyclictest311ktimers/200:25:132
2553372994231,6cyclictest0-21swapper/122:55:271
2553371994236,4cyclictest0-21swapper/019:50:000
2553371994231,8cyclictest2579117-21sendmail21:40:010
2553371994231,6cyclictest2565557-21grep20:15:280
2553371994231,6cyclictest2565557-21grep20:15:280
255337199421,2cyclictest0-21swapper/019:20:010
2553375994132,5cyclictest2588438-21grep22:30:292
2553375994123,12cyclictest311ktimers/221:50:132
2553375994121,13cyclictest311ktimers/200:35:132
2553372994131,6cyclictest0-21swapper/123:30:291
2553372994129,8cyclictest0-21swapper/121:40:281
255337299411,6cyclictest0-21swapper/120:20:011
255337299411,34cyclictest0-21swapper/100:01:221
2553371994131,6cyclictest0-21swapper/021:15:270
2553371994130,8cyclictest0-21swapper/022:45:290
2553371994130,8cyclictest0-21swapper/000:19:590
2553371994130,7cyclictest2590075-21unixbench_multi22:40:260
2553371994129,8cyclictest0-21swapper/023:35:270
2553371994129,8cyclictest0-21swapper/022:05:270
2553371994127,10cyclictest0-21swapper/021:05:270
255337199412,3cyclictest2598315-21fschecks_time23:30:210
2553371994123,13cyclictest0-21swapper/020:39:590
255337199411,9cyclictest0-21swapper/022:15:010
2553375994030,5cyclictest2608977-21grep00:30:252
2553375994028,5cyclictest0-21swapper/221:15:202
2553375994027,8cyclictest0-21swapper/221:25:012
2553375994027,8cyclictest0-21swapper/221:25:012
255337299407,11cyclictest2554192-21munin-node19:15:011
255337299407,11cyclictest2554192-21munin-node19:15:011
2553372994032,5cyclictest14-21rcu_preempt23:50:001
2553372994030,5cyclictest0-21swapper/100:15:021
2553372994028,8cyclictest0-21swapper/121:15:291
255337299401,4cyclictest0-21swapper/121:10:011
2553371994033,4cyclictest20850irq/208-8000000.ethernet00:15:010
2553371994029,7cyclictest0-21swapper/023:20:280
2553371994027,10cyclictest0-21swapper/000:40:010
255337199402,4cyclictest0-21swapper/020:10:250
255337199401,4cyclictest0-21swapper/022:25:230
255337199401,4cyclictest0-21swapper/022:25:230
2553375993930,5cyclictest2583436-21munin-run22:05:012
2553375993929,6cyclictest2607309-21grep00:20:272
2553375993927,7cyclictest2587583-21grep22:25:302
2553375993927,7cyclictest2587583-21grep22:25:292
2553375993926,6cyclictest0-21swapper/223:45:012
2553375993926,6cyclictest0-21swapper/223:45:012
2553375993925,7cyclictest0-21swapper/220:30:262
2553375993924,11cyclictest311ktimers/222:20:112
2553375993922,12cyclictest311ktimers/219:15:142
2553372993928,8cyclictest2584275-21munin-plugin-st22:10:001
2553372993928,8cyclictest0-21swapper/120:05:001
2553372993927,8cyclictest0-21swapper/120:55:281
2553372993927,6cyclictest0-21swapper/123:50:271
255337299392,2cyclictest0-21swapper/119:50:021
2553371993935,2cyclictest0-21swapper/019:30:020
2553371993929,7cyclictest0-21swapper/021:10:280
2553371993927,8cyclictest0-21swapper/020:25:270
2553371993927,5cyclictest2595294-21grep23:10:280
2553371993926,9cyclictest0-21swapper/023:15:280
2553371993926,10cyclictest0-21swapper/022:00:280
2553371993925,10cyclictest0-21swapper/021:40:280
255337199391,36cyclictest0-21swapper/022:15:200
255337199391,2cyclictest2569259-21ssh20:40:160
255337199391,2cyclictest0-21swapper/022:20:190
2553375993829,5cyclictest0-21swapper/222:45:302
2553375993828,5cyclictest0-21swapper/220:15:282
2553375993828,5cyclictest0-21swapper/220:15:272
2553375993828,5cyclictest0-21swapper/220:00:272
2553375993826,8cyclictest0-21swapper/223:05:262
2553375993826,6cyclictest0-21swapper/219:30:232
2553375993823,9cyclictest0-21swapper/223:00:262
2553375993821,9cyclictest0-21swapper/220:50:262
2553372993825,8cyclictest0-21swapper/119:20:271
2553372993823,10cyclictest0-21swapper/120:45:281
2553372993820,11cyclictest0-21swapper/121:25:281
2553371993831,4cyclictest20850irq/208-8000000.ethernet23:00:210
2553371993827,5cyclictest19750irq/27-20000000.i2c23:05:190
2553371993826,8cyclictest0-21swapper/021:00:280
255337199382,4cyclictest0-21swapper/021:30:330
255337199381,3cyclictest2606860-21ssh00:20:190
255337199381,35cyclictest0-21swapper/019:35:250
255337199381,35cyclictest0-21swapper/000:00:260
2553375993726,7cyclictest2590107-21grep22:40:272
2553375993726,7cyclictest0-21swapper/219:20:262
2553375993726,5cyclictest0-21swapper/221:35:242
2553375993721,11cyclictest311ktimers/219:45:132
2553375993719,11cyclictest311ktimers/220:25:112
255337599371,30cyclictest0-21swapper/222:15:192
2553372993725,7cyclictest0-21swapper/119:15:291
2553372993724,9cyclictest0-21swapper/100:20:251
2553372993723,9cyclictest0-21swapper/123:00:291
2553372993721,10cyclictest0-21swapper/119:55:271
2553371993731,4cyclictest20850irq/208-8000000.ethernet21:20:230
2553371993731,4cyclictest20850irq/208-8000000.ethernet21:20:230
2553371993730,4cyclictest20850irq/208-8000000.ethernet20:50:170
2553371993725,9cyclictest0-21swapper/019:20:270
2553371993725,8cyclictest0-21swapper/020:05:280
2553371993724,9cyclictest0-21swapper/019:55:270
255337199371,4cyclictest2581724-21sshd21:52:300
255337199371,4cyclictest0-21swapper/021:45:250
255337199371,4cyclictest0-21swapper/021:45:250
255337199371,34cyclictest0-21swapper/020:55:060
255337199371,34cyclictest0-21swapper/000:30:120
255337199371,33cyclictest2604503-21ptp4l-jitter00:05:280
2553375993629,3cyclictest2572693-21fschecks_count21:00:182
2553375993628,4cyclictest0-21swapper/223:25:252
2553375993626,5cyclictest0-21swapper/219:35:292
2553375993624,9cyclictest0-21swapper/221:40:272
2553375993620,9cyclictest0-21swapper/220:45:252
2553372993628,4cyclictest0-21swapper/100:05:211
2553372993626,7cyclictest2600505-21munin-plugin-st23:45:001
2553372993626,7cyclictest2600505-21munin-plugin-st23:45:001
2553372993625,7cyclictest0-21swapper/123:20:001
2553372993625,6cyclictest0-21swapper/123:35:281
2553372993623,8cyclictest0-21swapper/122:25:271
2553372993623,8cyclictest0-21swapper/122:25:261
2553372993623,8cyclictest0-21swapper/100:30:261
255337299362,28cyclictest2589549-21/usr/sbin/munin22:40:101
2553372993620,9cyclictest0-21swapper/120:25:281
255337299361,4cyclictest0-21swapper/121:20:021
255337299361,4cyclictest0-21swapper/121:20:021
255337299361,2cyclictest0-21swapper/100:20:021
255337199368,26cyclictest131ktimers/023:50:210
2553371993630,4cyclictest20850irq/208-8000000.ethernet23:55:240
2553371993629,5cyclictest2553366-21cyclictest19:55:000
2553371993628,6cyclictest0-21swapper/020:00:200
2553371993626,6cyclictest0-21swapper/020:20:290
2553375993526,5cyclictest2580946-21latency_hist21:50:012
2553375993526,5cyclictest2580946-21latency_hist21:50:012
2553375993525,5cyclictest0-21swapper/219:15:012
2553375993525,5cyclictest0-21swapper/219:15:012
2553375993519,8cyclictest0-21swapper/223:25:012
2553375993518,11cyclictest0-21swapper/200:15:202
2553372993523,8cyclictest0-21swapper/100:25:291
2553372993522,10cyclictest0-21swapper/121:30:281
2553372993521,8cyclictest0-21swapper/121:00:271
2553371993524,8cyclictest0-21swapper/019:45:000
255337199351,4cyclictest0-21swapper/019:10:000
255337199351,32cyclictest0-21swapper/021:25:190
2553375993426,4cyclictest2599640-21cron23:40:002
2553375993423,6cyclictest0-21swapper/220:05:272
2553375993422,9cyclictest0-21swapper/219:25:262
2553372993425,5cyclictest0-21swapper/123:55:161
2553372993425,5cyclictest0-21swapper/119:40:261
2553372993424,7cyclictest0-21swapper/121:45:281
2553372993424,7cyclictest0-21swapper/121:45:281
2553372993422,8cyclictest0-21swapper/120:05:281
2553372993422,6cyclictest0-21swapper/123:05:271
255337299341,3cyclictest0-21swapper/121:40:021
2553372993410,15cyclictest231ktimers/122:15:131
2553372993322,8cyclictest0-21swapper/119:30:021
2553372993321,9cyclictest0-21swapper/122:20:291
2553372993321,9cyclictest0-21swapper/121:50:291
2553372993321,8cyclictest0-21swapper/120:35:251
2553371993322,8cyclictest0-21swapper/022:35:000
255337599325,15cyclictest2592707-21sed22:55:272
255337599322,4cyclictest2573857-21gzip21:05:272
2553375993218,7cyclictest0-21swapper/219:10:012
2553372993223,6cyclictest0-21swapper/119:35:281
255337299322,2cyclictest0-21swapper/122:30:011
2553372993221,8cyclictest0-21swapper/122:50:261
2553372993221,8cyclictest0-21swapper/120:10:281
2553372993218,8cyclictest0-21swapper/120:15:271
2553372993218,8cyclictest0-21swapper/120:15:271
255337599317,14cyclictest2574789-21grep21:10:272
2553375993124,4cyclictest2572253-21grep20:55:272
2553375993123,4cyclictest0-21swapper/222:35:252
2553375993121,7cyclictest2584249-21sshd22:05:302
255337599311,24cyclictest0-21swapper/222:10:152
2553372993120,8cyclictest0-21swapper/121:55:281
255337299311,27cyclictest2594691-21/usr/sbin/munin23:10:171
2553371993119,9cyclictest0-21swapper/022:50:270
2553375993021,5cyclictest0-21swapper/223:14:592
2553375993020,5cyclictest0-21swapper/200:00:282
2553375993013,10cyclictest2582489-21unixbench_multi21:55:282
2553372993022,6cyclictest2588691-21/usr/sbin/munin22:35:271
2553372993020,7cyclictest0-21swapper/123:25:271
2553372993020,7cyclictest0-21swapper/119:30:261
2553372992921,6cyclictest1660-21snmpd22:00:581
2553372992911,16cyclictest167450irq/126-8000000.ethernet-tx122:12:291
2553372992816,6cyclictest231ktimers/121:05:141
2553375992717,5cyclictest311ktimers/200:05:302
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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