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2026-03-27 - 23:22

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 Fri Mar 27, 2026 12:44:46)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
230916399612,37cyclictest2329852-21apt-get09:10:012
230916099615,23cyclictest2365571-21apt-get12:40:011
230915999541,6cyclictest0-21swapper/009:00:110
230915999541,6cyclictest0-21swapper/009:00:100
2309163995344,6cyclictest2358826-21munin-plugin-st12:00:002
2309160995038,8cyclictest0-21swapper/107:29:591
2309163994936,8cyclictest0-21swapper/212:40:012
2309160994833,9cyclictest0-21swapper/110:15:291
2309159994840,5cyclictest167350irq/118-8000000.ethernet-tx009:15:240
2309159994836,9cyclictest2358830-21sendmail12:00:000
2309159994828,17cyclictest0-21swapper/009:50:150
230915999481,31cyclictest0-21swapper/008:40:020
2309163994725,2cyclictest14-21rcu_preempt11:05:272
2309163994724,16cyclictest311ktimers/207:25:132
230915999476,5cyclictest2326385-21apt-get08:50:010
2309159994742,3cyclictest0-21swapper/007:20:200
2309159994738,5cyclictest167350irq/118-8000000.ethernet-tx009:30:320
230915999472,4cyclictest2365448-21xargs12:35:270
2309159994714,18cyclictest2352198-21/usr/sbin/munin11:20:190
2309163994634,8cyclictest0-21swapper/208:50:282
2309163994632,9cyclictest0-21swapper/209:00:282
2309163994632,9cyclictest0-21swapper/209:00:282
2309160994636,7cyclictest2359592-21grep12:00:281
230915999466,2cyclictest0-21swapper/011:50:010
230915999465,9cyclictest0-21swapper/007:25:190
2309159994639,4cyclictest167350irq/118-8000000.ethernet-tx009:10:170
2309160994535,7cyclictest0-21swapper/111:00:001
2309160994532,9cyclictest0-21swapper/107:15:021
2309160994511,28cyclictest0-21swapper/111:40:271
230915999456,16cyclictest0-21swapper/011:10:010
2309163994435,6cyclictest2356220-21grep11:40:282
2309163994431,9cyclictest0-21swapper/211:10:282
2309160994433,8cyclictest2345150-21sendmail10:40:001
2309160994428,9cyclictest0-21swapper/107:19:591
2309160994427,10cyclictest0-21swapper/109:10:281
230915999447,5cyclictest0-21swapper/009:25:010
2309159994436,4cyclictest2339241-21munin-plugin-st10:05:000
2309159994436,4cyclictest2339241-21munin-plugin-st10:04:590
2309159994434,5cyclictest167350irq/118-8000000.ethernet-tx011:15:010
2309159994431,9cyclictest0-21swapper/007:30:190
2309159994429,13cyclictest167350irq/118-8000000.ethernet-tx010:35:140
230915999441,8cyclictest0-21swapper/008:00:010
2309163994333,6cyclictest0-21swapper/210:15:282
2309163994332,8cyclictest2324697-21sendmail08:39:592
2309163994331,8cyclictest0-21swapper/210:10:002
2309160994334,5cyclictest0-21swapper/110:50:281
2309160994333,5cyclictest0-21swapper/108:45:191
2309159994339,2cyclictest0-21swapper/009:10:000
230915999431,40cyclictest0-21swapper/008:30:130
230915999431,37cyclictest0-21swapper/008:40:010
2309163994233,5cyclictest167550irq/134-8000000.ethernet-tx212:20:182
2309160994231,7cyclictest0-21swapper/111:25:271
2309160994231,7cyclictest0-21swapper/111:25:271
2309160994231,5cyclictest2333280-21grep09:25:281
2309160994230,8cyclictest0-21swapper/107:40:301
2309160994228,9cyclictest0-21swapper/108:35:251
2309160994222,10cyclictest0-21swapper/112:10:281
2309160994222,10cyclictest0-21swapper/112:10:281
2309159994229,9cyclictest0-21swapper/011:35:230
230915999422,5cyclictest2340578-21meminfo10:10:250
230916399419,25cyclictest0-21swapper/207:10:002
2309163994132,6cyclictest2323011-21munin-plugin-st08:30:012
2309163994129,8cyclictest0-21swapper/209:35:272
2309163994129,7cyclictest0-21swapper/209:25:272
2309163994128,8cyclictest0-21swapper/209:40:282
2309163994127,10cyclictest0-21swapper/212:34:592
2309160994132,6cyclictest0-21swapper/107:55:281
2309160994127,9cyclictest0-21swapper/107:35:301
230916099411,5cyclictest0-21swapper/109:10:011
2309159994135,3cyclictest167350irq/118-8000000.ethernet-tx009:40:170
2309159994127,9cyclictest0-21swapper/008:20:000
230915999411,5cyclictest2327314-21apt08:55:010
230915999411,37cyclictest2342881-21ssh10:25:170
2309163994033,5cyclictest2343460-21munin-plugin-st10:30:002
2309163994032,5cyclictest2334165-21munin-plugin-st09:34:592
2309163994030,6cyclictest2345028-21grep10:35:282
2309163994030,6cyclictest2313580-21grep07:30:292
2309163994029,8cyclictest0-21swapper/211:30:272
2309163994027,8cyclictest0-21swapper/208:45:262
2309163994027,8cyclictest0-21swapper/208:10:292
2309163994024,10cyclictest0-21swapper/207:10:212
2309160994029,7cyclictest0-21swapper/110:40:271
230915999404,7cyclictest0-21swapper/007:40:270
2309159994028,9cyclictest0-21swapper/010:30:210
2309163993931,6cyclictest2359620-21grep12:00:302
2309163993926,8cyclictest0-21swapper/209:10:282
2309163993922,8cyclictest0-21swapper/207:40:302
2309163993921,15cyclictest311ktimers/212:25:132
2309163993921,12cyclictest311ktimers/207:15:112
2309163993920,14cyclictest311ktimers/211:45:122
2309160993927,9cyclictest0-21swapper/109:49:591
2309160993921,13cyclictest231ktimers/108:50:111
230916099391,5cyclictest0-21swapper/107:50:011
230916099391,5cyclictest0-21swapper/107:50:011
2309159993935,2cyclictest0-21swapper/010:50:280
2309159993932,4cyclictest167350irq/118-8000000.ethernet-tx009:35:160
2309159993929,6cyclictest0-21swapper/009:55:150
2309159993928,7cyclictest0-21swapper/011:00:270
2309159993927,8cyclictest0-21swapper/012:15:280
2309159993923,12cyclictest131ktimers/007:35:240
230915999391,36cyclictest0-21swapper/011:15:160
230915999391,36cyclictest0-21swapper/010:57:330
230915999391,36cyclictest0-21swapper/010:45:140
230915999391,36cyclictest0-21swapper/010:20:230
230915999391,35cyclictest2363901-21wc12:30:010
2309163993827,8cyclictest0-21swapper/207:20:282
2309163993822,9cyclictest2322067-21unixbench_multi08:20:272
2309163993812,4cyclictest0-21swapper/210:40:212
2309160993830,4cyclictest0-21swapper/112:15:171
2309160993830,4cyclictest0-21swapper/110:05:271
2309160993829,5cyclictest0-21swapper/112:25:291
2309160993827,6cyclictest0-21swapper/107:30:271
2309160993826,8cyclictest0-21swapper/111:05:281
2309160993826,7cyclictest0-21swapper/109:15:281
2309160993825,8cyclictest0-21swapper/111:30:271
2309160993824,9cyclictest0-21swapper/110:25:271
2309160993819,15cyclictest231ktimers/109:50:141
2309159993832,4cyclictest131ktimers/011:30:260
2309159993827,6cyclictest2310207-21latency_hist07:15:020
230915999382,3cyclictest0-21swapper/008:55:190
230915999381,35cyclictest0-21swapper/012:05:140
230915999381,35cyclictest0-21swapper/010:15:210
230915999381,35cyclictest0-21swapper/009:45:140
230915999381,35cyclictest0-21swapper/008:20:040
230915999381,35cyclictest0-21swapper/008:05:220
230915999381,35cyclictest0-21swapper/008:00:250
230915999381,35cyclictest0-21swapper/007:15:250
2309163993726,7cyclictest0-21swapper/208:15:282
2309160993729,5cyclictest2346837-21munin-plugin-st10:50:001
2309160993723,8cyclictest0-21swapper/108:20:021
2309160993722,9cyclictest0-21swapper/108:30:301
2309159993732,2cyclictest0-21swapper/012:20:170
2309159993731,4cyclictest0-21swapper/008:14:330
2309159993730,4cyclictest2322442-21diskstats08:25:160
2309159993730,4cyclictest0-21swapper/010:05:160
230915999372,5cyclictest15-21rcuc/011:55:010
230915999371,4cyclictest2364297-21perl12:30:220
230915999371,34cyclictest0-21swapper/007:10:010
230916399369,16cyclictest2336901-21/usr/sbin/munin09:50:182
2309163993629,4cyclictest2346784-21unixbench_singl10:45:282
2309163993627,4cyclictest0-21swapper/212:05:282
2309163993625,6cyclictest0-21swapper/208:00:262
2309163993624,7cyclictest0-21swapper/207:35:192
2309163993623,9cyclictest0-21swapper/208:05:262
2309163993621,12cyclictest311ktimers/210:00:142
2309163993621,12cyclictest311ktimers/210:00:142
2309163993621,10cyclictest0-21swapper/208:30:202
230916099368,5cyclictest0-21swapper/110:10:271
2309160993626,6cyclictest2319492-21grep08:05:281
2309160993625,7cyclictest0-21swapper/108:55:281
2309160993624,9cyclictest231ktimers/111:55:121
2309160993624,8cyclictest0-21swapper/110:00:281
2309160993624,8cyclictest0-21swapper/110:00:281
2309160993621,11cyclictest0-21swapper/109:40:191
2309160993614,15cyclictest231ktimers/112:05:141
2309159993630,3cyclictest2346075-21latency_hist10:45:000
2309159993624,8cyclictest0-21swapper/011:40:280
230915999362,28cyclictest2359838-21latency_hist12:05:010
230915999361,33cyclictest0-21swapper/011:25:200
230915999361,33cyclictest0-21swapper/011:25:190
230915999361,33cyclictest0-21swapper/009:25:040
2309163993526,5cyclictest0-21swapper/210:55:292
2309163993526,5cyclictest0-21swapper/208:40:202
2309163993525,7cyclictest2352724-21grep11:20:282
2309163993520,13cyclictest23316031sshd09:16:342
230916399351,3cyclictest0-21swapper/212:15:012
230916399351,3cyclictest0-21swapper/212:15:012
2309160993527,4cyclictest0-21swapper/107:20:261
2309160993524,8cyclictest0-21swapper/108:14:591
2309160993524,7cyclictest0-21swapper/110:20:291
2309160993523,8cyclictest0-21swapper/108:25:271
2309160993520,10cyclictest0-21swapper/111:35:301
2309163993426,4cyclictest0-21swapper/207:50:202
2309163993425,5cyclictest0-21swapper/211:15:282
2309163993424,6cyclictest2316066-21grep07:45:282
2309163993424,6cyclictest2316066-21grep07:45:272
2309163993423,6cyclictest2336599-21grep09:45:292
2309163993422,6cyclictest2349315-21grep11:00:272
2309163993413,14cyclictest0-21swapper/210:25:002
2309160993422,9cyclictest0-21swapper/109:20:181
2309160993422,5cyclictest0-21swapper/112:20:281
2309160993419,9cyclictest0-21swapper/108:25:021
230916099341,26cyclictest2333522-21/usr/sbin/munin09:30:291
230915999341,4cyclictest0-21swapper/007:45:150
230915999341,4cyclictest0-21swapper/007:45:140
230915999341,31cyclictest0-21swapper/012:13:420
230915999341,31cyclictest0-21swapper/012:13:410
2309163993325,5cyclictest0-21swapper/210:55:002
2309160993323,6cyclictest0-21swapper/111:50:281
2309160993317,11cyclictest231ktimers/109:55:141
2309160993315,12cyclictest231ktimers/108:00:111
2309159993326,5cyclictest0-21swapper/007:50:220
2309160993224,5cyclictest0-21swapper/107:50:291
2309163993126,3cyclictest2340827-21unixbench_multi10:10:282
2309163993124,4cyclictest2343438-21kworker/u8:1-events_power_efficient10:30:272
2309163993123,6cyclictest0-21swapper/211:35:292
2309163993122,6cyclictest0-21swapper/209:55:282
2309160993123,4cyclictest0-21swapper/111:00:251
2309160993123,4cyclictest0-21swapper/108:40:281
2309160993121,7cyclictest0-21swapper/109:35:281
2309160993120,7cyclictest0-21swapper/111:10:201
2309160993120,6cyclictest1653-21lldpd11:15:151
230916099311,28cyclictest0-21swapper/110:30:281
2309160993112,13cyclictest231ktimers/111:45:121
2309163993022,4cyclictest0-21swapper/211:50:212
2309163993020,6cyclictest0-21swapper/211:25:272
2309163993020,6cyclictest0-21swapper/211:25:272
2309163993015,11cyclictest311ktimers/208:55:152
2309160993020,7cyclictest0-21swapper/111:20:271
2309160993018,9cyclictest0-21swapper/112:30:211
2309163992921,6cyclictest2331844-21/usr/sbin/munin09:20:222
2309163992918,6cyclictest311ktimers/212:15:192
2309160992821,4cyclictest0-21swapper/109:00:281
2309160992821,4cyclictest0-21swapper/109:00:271
2309160992816,5cyclictest0-21swapper/107:10:011
230916399261,23cyclictest0-21swapper/207:57:192
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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