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2026-08-27 - 05:28

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 Thu Aug 27, 2026 00:44:46)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
268696699907,3cyclictest0-21swapper/021:10:010
2686966996916,10cyclictest2687790-21munin-node19:15:010
268696699618,11cyclictest2724825-21munin-run22:50:000
2686966996151,8cyclictest0-21swapper/020:35:020
268696699591,56cyclictest0-21swapper/020:45:000
268696699591,37cyclictest0-21swapper/019:20:010
2686969995838,14cyclictest231ktimers/122:50:161
2686970995747,5cyclictest2705965-21munin-plugin-st21:00:002
2686969995741,11cyclictest231ktimers/119:45:161
2686966995746,7cyclictest2713640-21grep21:40:280
2686966995736,18cyclictest167350irq/118-8000000.ethernet-tx000:10:010
2686966995623,29cyclictest2691490-21grep19:30:300
2686966995622,10cyclictest12-21ksoftirqd/019:40:010
268696699561,4cyclictest0-21swapper/021:00:110
268697099556,12cyclictest2714592-21apt-get21:50:022
2686969995546,5cyclictest2721349-21unixbench_multi22:25:281
2686969995541,9cyclictest0-21swapper/100:35:001
2686969995532,17cyclictest231ktimers/119:35:111
2686969995445,5cyclictest2723988-21munin-plugin-st22:45:011
2686969995445,5cyclictest2723988-21munin-plugin-st22:45:011
2686970995343,6cyclictest2729967-21cron23:20:002
268696699532,4cyclictest0-21swapper/000:25:010
268696699525,43cyclictest2711928-21unixbench_singl21:30:320
2686966995212,3cyclictest2696344-21memory20:00:230
2686970995141,7cyclictest2708503-21munin-plugin-st21:14:592
268697099511,21cyclictest0-21swapper/222:30:022
2686966995112,3cyclictest2689416-21memory19:20:220
268696999509,24cyclictest22-21rcuc/100:25:001
2686969995034,12cyclictest231ktimers/123:00:101
2686969995024,16cyclictest231ktimers/123:10:101
2686970994927,11cyclictest14-21rcu_preempt22:00:002
2686970994910,13cyclictest2725663-21apt-get22:55:002
2686969994936,8cyclictest0-21swapper/120:50:001
2686966994945,2cyclictest0-21swapper/000:15:150
2686966994945,2cyclictest0-21swapper/000:15:150
2686969994834,9cyclictest1283-21cron21:15:001
2686966994839,5cyclictest2721411-21grep22:25:280
2686970994740,5cyclictest0-21swapper/200:25:002
2686970994735,7cyclictest0-21swapper/221:30:002
2686966994739,5cyclictest2720600-21cron22:24:590
2686966994739,4cyclictest20650irq/252-8000000.ethernet20:45:230
2686966994711,29cyclictest2725837-21latency_hist22:55:010
2686966994710,9cyclictest2736384-21grep23:55:190
2686970994626,13cyclictest0-21swapper/220:15:282
2686970994626,13cyclictest0-21swapper/220:15:272
2686969994618,17cyclictest0-21swapper/122:20:011
2686966994630,14cyclictest167350irq/118-8000000.ethernet-tx019:40:280
2686966994619,3cyclictest2697792-21/usr/sbin/munin20:10:170
268697099452,34cyclictest2733341-21sed23:35:272
268696999451,15cyclictest0-21swapper/119:10:011
2686966994541,2cyclictest0-21swapper/023:35:200
2686966994528,12cyclictest12-21ksoftirqd/023:05:010
2686970994423,11cyclictest0-21swapper/220:10:302
2686969994432,8cyclictest2699208-21sendmail20:20:011
2686969994432,8cyclictest2699208-21sendmail20:20:001
2686969994432,8cyclictest2686963-21cyclictest19:55:001
2686969994431,10cyclictest0-21swapper/121:55:011
2686969994423,16cyclictest231ktimers/123:45:111
268696699443,4cyclictest2717682-21irqstats22:05:230
268696699442,4cyclictest2712471-21memory21:35:230
2686966994417,3cyclictest2716885-21memory22:00:260
2686966994417,3cyclictest2716885-21memory22:00:260
2686970994333,6cyclictest0-21swapper/223:34:592
2686970994310,23cyclictest311ktimers/223:25:022
2686969994335,4cyclictest0-21swapper/100:00:321
2686966994338,2cyclictest0-21swapper/022:35:010
2686966994333,6cyclictest2731316-21lsblk23:25:210
2686966994329,9cyclictest0-21swapper/019:50:200
268696699432,38cyclictest2729103-21sshd23:10:270
268696699431,4cyclictest2735012-21ptp4l-jitter23:45:280
2686966994314,3cyclictest2730263-21diskstats23:20:180
268697099424,26cyclictest30-21rcuc/222:55:112
2686970994235,4cyclictest2723065-21unixbench_singl22:35:292
2686969994233,5cyclictest2688797-21grep19:15:271
2686969994230,7cyclictest0-21swapper/119:25:011
268696699425,35cyclictest0-21swapper/021:15:120
268696699425,29cyclictest0-21swapper/022:40:000
2686966994237,2cyclictest0-21swapper/020:55:170
268696699422,7cyclictest0-21swapper/020:20:010
268696699422,7cyclictest0-21swapper/020:20:010
2686966994223,17cyclictest0-21swapper/019:45:280
2686970994132,5cyclictest2687655-21unixbench_multi19:10:262
268696999416,16cyclictest24-21ksoftirqd/121:00:011
2686969994132,4cyclictest0-21swapper/123:20:291
2686969994129,8cyclictest0-21swapper/120:45:001
2686969994125,8cyclictest0-21swapper/122:05:271
2686966994135,4cyclictest20850irq/208-8000000.ethernet00:00:190
268696699413,4cyclictest2690343-21meminfo19:25:240
2686966994128,7cyclictest0-21swapper/021:45:100
2686970994031,6cyclictest0-21swapper/219:35:292
2686970994028,8cyclictest0-21swapper/200:25:292
2686969994031,5cyclictest2718906-21munin-plugin-st22:15:001
2686969994030,5cyclictest0-21swapper/122:55:281
2686969994024,8cyclictest2711087-21grep21:25:291
2686966994033,4cyclictest0-21swapper/020:55:000
2686966994030,5cyclictest0-21swapper/020:05:220
2686966994029,8cyclictest2741440-21/usr/sbin/munin00:25:120
268696699401,4cyclictest2716373-21munin-run22:00:000
268696699401,36cyclictest0-21swapper/022:13:290
2686970993929,5cyclictest0-21swapper/223:00:272
2686970993921,12cyclictest0-21swapper/222:05:282
2686970993915,16cyclictest2690043-21/usr/sbin/munin19:25:192
2686969993923,7cyclictest0-21swapper/119:15:011
2686966993927,8cyclictest2732054-21ssh23:30:200
2686966993926,9cyclictest2700021-21grep20:20:300
268696699391,9cyclictest12-21ksoftirqd/021:30:020
268696699391,3cyclictest2733811-21df_inode23:40:190
2686966993911,3cyclictest2701174-21diskstats20:30:190
2686966993911,25cyclictest2695542-21/usr/sbin/munin19:55:280
2686970993830,5cyclictest2688828-21unixbench_singl19:15:272
2686970993830,4cyclictest167550irq/134-8000000.ethernet-tx221:40:232
2686970993827,7cyclictest0-21swapper/223:55:292
2686970993826,7cyclictest0-21swapper/220:40:292
2686970993825,6cyclictest0-21swapper/221:00:282
2686970993824,8cyclictest0-21swapper/221:15:282
2686970993823,8cyclictest0-21swapper/222:40:262
2686970993823,8cyclictest0-21swapper/222:40:262
2686970993823,11cyclictest0-21swapper/222:15:292
2686970993821,10cyclictest0-21swapper/200:35:282
2686969993829,5cyclictest0-21swapper/120:35:281
2686969993826,6cyclictest2736810-21grep23:55:291
2686969993824,10cyclictest231ktimers/121:00:121
2686969993822,8cyclictest0-21swapper/121:40:271
2686969993820,13cyclictest231ktimers/122:45:091
2686966993831,4cyclictest20850irq/208-8000000.ethernet22:40:150
2686966993831,4cyclictest20850irq/208-8000000.ethernet22:40:150
2686966993826,10cyclictest12-21ksoftirqd/022:57:540
2686966993823,13cyclictest0-21swapper/023:15:210
268696699381,35cyclictest0-21swapper/021:10:150
268696699381,35cyclictest0-21swapper/020:25:130
268696699381,2cyclictest0-21swapper/021:55:010
2686966993811,3cyclictest2709725-21diskstats21:20:210
268696699380,31cyclictest0-21swapper/000:40:000
2686970993726,7cyclictest0-21swapper/222:00:282
2686970993726,7cyclictest0-21swapper/222:00:282
2686970993724,7cyclictest2712822-21sendmail21:40:012
2686970993724,7cyclictest0-21swapper/219:20:262
268697099371,8cyclictest2700493-21if_eth020:25:222
268696999375,4cyclictest832-21systemd-network23:05:261
2686969993727,4cyclictest0-21swapper/123:15:301
2686969993725,9cyclictest231ktimers/123:30:141
2686969993723,7cyclictest2701690-21grep20:30:291
2686969993720,9cyclictest0-21swapper/100:10:261
2686969993711,21cyclictest22-21rcuc/121:05:281
2686966993730,3cyclictest20650irq/252-8000000.ethernet22:15:190
2686966993729,4cyclictest2742836-21grep00:30:250
2686970993627,5cyclictest0-21swapper/220:50:022
2686970993624,8cyclictest0-21swapper/200:15:262
2686970993624,8cyclictest0-21swapper/200:15:262
2686970993623,9cyclictest0-21swapper/219:50:012
2686970993623,8cyclictest0-21swapper/200:10:272
2686969993626,7cyclictest2740376-21apt00:20:011
2686969993626,7cyclictest2740376-21apt00:20:001
268696999362,10cyclictest0-21swapper/100:30:001
2686969993619,9cyclictest0-21swapper/121:45:281
268696699366,28cyclictest0-21swapper/023:00:260
2686966993628,4cyclictest2735491-21/usr/sbin/munin23:50:180
2686966993628,4cyclictest2735491-21/usr/sbin/munin23:50:180
268697099357,11cyclictest8321systemd-network23:06:182
2686970993525,4cyclictest0-21swapper/223:40:202
2686970993524,7cyclictest0-21swapper/222:10:282
2686970993524,7cyclictest0-21swapper/200:05:342
2686969993525,6cyclictest0-21swapper/120:25:271
2686969993524,7cyclictest2700057-21cron20:25:001
2686969993519,8cyclictest0-21swapper/121:55:311
268697099347,21cyclictest0-21swapper/222:20:182
2686970993425,6cyclictest0-21swapper/219:40:322
2686970993421,10cyclictest0-21swapper/221:20:302
2686969993426,5cyclictest0-21swapper/123:45:001
2686969993424,6cyclictest2738540-21grep00:05:341
2686969993424,6cyclictest2731725-21grep23:25:291
2686969993424,5cyclictest2705031-21grep20:50:281
2686969993423,7cyclictest0-21swapper/121:20:011
2686966993428,4cyclictest20850irq/208-8000000.ethernet00:10:160
2686970993324,5cyclictest0-21swapper/219:55:302
2686970993324,4cyclictest0-21swapper/220:30:202
268697099331,26cyclictest0-21swapper/220:20:122
2686969993321,8cyclictest231ktimers/121:20:081
2686969993321,8cyclictest0-21swapper/122:30:191
2686969993321,6cyclictest2712169-21/usr/sbin/munin21:35:251
2686970993221,6cyclictest0-21swapper/220:05:292
268697099321,25cyclictest0-21swapper/223:10:162
268697099321,25cyclictest0-21swapper/222:30:122
268697099321,25cyclictest0-21swapper/200:00:112
268697099321,23cyclictest0-21swapper/200:30:022
2686969993219,8cyclictest0-21swapper/119:55:271
268696999321,26cyclictest0-21swapper/120:05:431
2686970993125,3cyclictest2711971-21munin-plugin-st21:35:002
268697099312,3cyclictest2735418-21/usr/sbin/munin23:50:282
268697099312,3cyclictest2735418-21/usr/sbin/munin23:50:282
2686970993123,4cyclictest2696191-21sh20:00:182
2686970993121,6cyclictest0-21swapper/223:45:212
2686970993119,8cyclictest0-21swapper/221:05:292
2686969993119,8cyclictest0-21swapper/120:15:001
2686969993112,4cyclictest8321systemd-network23:36:541
268696999311,24cyclictest0-21swapper/120:00:081
2686970993022,4cyclictest0-21swapper/219:50:282
2686970993019,7cyclictest0-21swapper/220:35:292
2686970993016,8cyclictest0-21swapper/222:45:252
2686969993024,3cyclictest0-21swapper/100:35:271
2686969993023,5cyclictest2735418-21/usr/sbin/munin23:50:261
2686969993023,5cyclictest2735418-21/usr/sbin/munin23:50:261
2686969993020,6cyclictest0-21swapper/122:00:271
2686969993020,6cyclictest0-21swapper/122:00:271
268696999301,26cyclictest2711328-21/usr/sbin/munin21:30:291
2686966993014,10cyclictest0-21swapper/019:10:010
2686970992916,9cyclictest0-21swapper/223:25:272
268697099291,4cyclictest2690942-21df19:30:192
2686969992921,6cyclictest2690882-21/usr/sbin/munin19:30:241
2686969992920,6cyclictest2723073-21grep22:35:291
2686969992819,5cyclictest0-21swapper/119:25:291
2686969992715,7cyclictest0-21swapper/122:20:281
2686970992618,4cyclictest0-21swapper/221:50:222
2686969992617,6cyclictest0-21swapper/119:40:331
2686970992511,11cyclictest0-21swapper/220:50:202
2686970992114,4cyclictest14-21rcu_preempt19:10:012
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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