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2026-01-12 - 10:39

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 Mon Jan 12, 2026 00:44:52)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
346103899676,23cyclictest0-21swapper/219:30:012
346103699673,27cyclictest0-21swapper/120:30:011
346103699672,22cyclictest0-21swapper/119:35:011
3461033996710,24cyclictest0-21swapper/000:25:010
3461033996613,19cyclictest12-21ksoftirqd/021:30:010
3461033996613,19cyclictest12-21ksoftirqd/021:30:010
3461033995710,15cyclictest15-21rcuc/022:00:010
346103699561,14cyclictest0-21swapper/122:05:011
3461038995341,8cyclictest3469830-21grep19:55:292
3461038995239,9cyclictest3500475-21sendmail23:00:002
3461033995243,4cyclictest167350irq/118-8000000.ethernet-tx020:20:140
346103399524,23cyclictest12-21ksoftirqd/022:50:000
3461038994936,10cyclictest1283-21cron00:25:002
3461038994935,9cyclictest3487689-21grep21:40:292
346103399495,5cyclictest131ktimers/000:00:200
3461038994834,10cyclictest3517461-21munin-plugin-st00:40:002
3461036994838,5cyclictest0-21swapper/120:04:591
3461033994836,8cyclictest0-21swapper/000:30:010
3461033994836,8cyclictest0-21swapper/000:30:000
346103399482,4cyclictest0-21swapper/020:50:200
346103399482,17cyclictest12-21ksoftirqd/023:25:010
3461036994734,9cyclictest0-21swapper/121:00:001
3461036994734,9cyclictest0-21swapper/121:00:001
3461036994720,14cyclictest231ktimers/119:25:121
3461033994738,6cyclictest20850irq/208-8000000.ethernet21:20:000
346103399472,8cyclictest12-21ksoftirqd/022:25:250
3461036994633,8cyclictest0-21swapper/123:10:271
3461033994639,4cyclictest20650irq/252-8000000.ethernet22:40:170
3461033994639,4cyclictest20650irq/252-8000000.ethernet22:40:170
3461033994639,4cyclictest20650irq/252-8000000.ethernet19:20:190
3461038994538,4cyclictest3512386-21munin-plugin-st00:10:002
346103699456,21cyclictest3477796-21/usr/sbin/munin20:45:181
3461036994532,9cyclictest0-21swapper/122:50:281
3461036994531,9cyclictest0-21swapper/123:25:301
3461036994529,11cyclictest0-21swapper/121:10:271
3461036994529,11cyclictest0-21swapper/121:10:271
3461036994524,13cyclictest0-21swapper/119:50:001
3461033994534,7cyclictest0-21swapper/019:35:290
3461033994534,7cyclictest0-21swapper/019:35:290
3461033994529,12cyclictest0-21swapper/019:20:010
3461033994529,12cyclictest0-21swapper/019:20:010
346103399451,42cyclictest0-21swapper/023:40:020
3461036994427,10cyclictest0-21swapper/119:20:301
346103699441,36cyclictest3500405-21unixbench_singl22:55:271
3461033994437,4cyclictest167350irq/118-8000000.ethernet-tx022:58:450
3461033994436,5cyclictest167350irq/118-8000000.ethernet-tx022:10:170
3461033994426,16cyclictest0-21swapper/020:15:260
3461033994426,16cyclictest0-21swapper/000:15:150
3461033994426,12cyclictest0-21swapper/023:50:010
3461036994332,8cyclictest3490193-21unixbench_singl21:55:271
3461033994332,9cyclictest131ktimers/019:40:100
3461033994330,10cyclictest0-21swapper/022:10:000
3461033994329,10cyclictest131ktimers/000:05:110
346103399432,3cyclictest0-21swapper/020:30:010
346103399431,40cyclictest0-21swapper/021:05:210
3461038994235,4cyclictest3492035-21munin-plugin-st22:10:002
3461038994233,5cyclictest0-21swapper/220:25:012
3461038994230,4cyclictest167550irq/134-8000000.ethernet-tx220:50:292
3461038994225,10cyclictest0-21swapper/220:55:282
3461038994225,10cyclictest0-21swapper/220:55:282
3461036994230,7cyclictest0-21swapper/119:55:291
346103699421,33cyclictest0-21swapper/123:00:281
3461033994235,4cyclictest167350irq/118-8000000.ethernet-tx022:15:250
3461033994230,9cyclictest0-21swapper/000:15:000
346103399422,38cyclictest0-21swapper/023:25:190
346103399422,37cyclictest0-21swapper/022:30:190
346103399421,39cyclictest0-21swapper/021:45:250
346103399421,38cyclictest0-21swapper/023:15:190
346103399421,36cyclictest3480249-21cut21:00:010
346103399421,36cyclictest3480249-21cut21:00:000
346103399420,40cyclictest0-21swapper/023:50:190
3461038994133,5cyclictest167550irq/134-8000000.ethernet-tx219:25:022
3461038994133,5cyclictest0-21swapper/219:25:212
3461036994133,5cyclictest3484353-21munin-plugin-st21:25:001
3461036994130,7cyclictest3486885-21sendmail21:39:591
346103699411,32cyclictest3504732-21unixbench_singl23:20:281
346103399413,5cyclictest3468122-21grep19:45:270
3461033994135,4cyclictest20850irq/208-8000000.ethernet22:00:290
3461033994134,4cyclictest0-21swapper/023:00:050
3461033994133,5cyclictest0-21swapper/020:05:250
3461033994133,5cyclictest0-21swapper/020:05:250
3461033994131,8cyclictest131ktimers/019:50:110
3461033994131,8cyclictest131ktimers/019:50:110
3461033994131,6cyclictest15-21rcuc/020:45:250
3461033994131,5cyclictest3472332-21unixbench_multi20:10:290
346103399411,7cyclictest12-21ksoftirqd/022:50:130
3461033994116,3cyclictest14-21rcu_preempt19:25:160
3461038994031,5cyclictest3494575-21munin-plugin-st22:25:002
346103899401,3cyclictest3476628-21unixbench_multi20:35:302
346103699402,5cyclictest0-21swapper/121:30:011
346103699402,5cyclictest0-21swapper/121:30:011
346103699401,4cyclictest0-21swapper/119:35:191
346103699401,4cyclictest0-21swapper/119:35:191
346103699401,30cyclictest3507205-21unixbench_multi23:35:281
346103399405,32cyclictest131ktimers/000:30:200
3461033994032,5cyclictest0-21swapper/019:32:440
3461033994029,5cyclictest0-21swapper/020:35:020
3461033994029,5cyclictest0-21swapper/020:35:020
3461033994023,15cyclictest0-21swapper/019:10:150
3461038993931,4cyclictest0-21swapper/220:20:002
3461038993930,4cyclictest3490259-21sendmail22:00:002
3461038993929,5cyclictest0-21swapper/221:20:282
3461038993926,10cyclictest0-21swapper/200:25:292
3461038993926,10cyclictest0-21swapper/200:25:292
346103899391,5cyclictest3466409-21unixbench_multi19:35:292
346103899391,5cyclictest3466409-21unixbench_multi19:35:292
3461036993932,4cyclictest167450irq/126-8000000.ethernet-tx123:40:291
3461036993929,6cyclictest0-21swapper/123:55:281
346103399396,2cyclictest0-21swapper/021:40:010
346103399393,34cyclictest0-21swapper/000:35:210
3461033993931,5cyclictest0-21swapper/021:30:280
346103399391,36cyclictest3506980-21awk23:35:250
346103399391,36cyclictest0-21swapper/023:10:180
3461038993828,7cyclictest0-21swapper/200:15:002
3461036993829,5cyclictest0-21swapper/100:20:271
3461036993829,4cyclictest167450irq/126-8000000.ethernet-tx122:30:251
3461036993826,8cyclictest0-21swapper/100:25:291
3461036993826,8cyclictest0-21swapper/100:25:291
3461036993826,7cyclictest0-21swapper/119:10:281
3461036993825,9cyclictest0-21swapper/123:05:291
3461036993825,8cyclictest0-21swapper/122:15:221
346103699381,29cyclictest3492810-21unixbench_singl22:10:281
3461033993830,5cyclictest0-21swapper/022:35:290
346103399381,3cyclictest3505907-21diskstats23:30:200
346103399381,3cyclictest0-21swapper/023:55:240
346103399381,35cyclictest3487256-21ssh21:40:200
346103399381,35cyclictest0-21swapper/021:10:120
346103399381,35cyclictest0-21swapper/021:10:120
346103399381,35cyclictest0-21swapper/020:35:130
346103399381,35cyclictest0-21swapper/019:55:130
3461038993731,3cyclictest167550irq/134-8000000.ethernet-tx221:05:282
3461038993725,6cyclictest0-21swapper/221:45:282
3461036993724,9cyclictest0-21swapper/121:50:191
3461036993724,9cyclictest0-21swapper/121:40:261
346103399371,3cyclictest0-21swapper/022:20:250
3461038993617,14cyclictest3461030-21cyclictest21:10:102
3461038993617,14cyclictest3461030-21cyclictest21:10:102
346103899361,5cyclictest3506411-21unixbench_singl23:30:292
346103899361,2cyclictest0-21swapper/220:05:292
346103899361,2cyclictest0-21swapper/220:05:292
3461033993628,4cyclictest14-21rcu_preempt21:20:180
3461033993622,10cyclictest0-21swapper/020:00:290
346103399361,4cyclictest0-21swapper/020:40:270
346103399361,4cyclictest0-21swapper/020:40:270
346103399361,33cyclictest0-21swapper/023:05:150
346103899357,11cyclictest30-21rcuc/200:35:012
3461038993530,3cyclictest32-21ksoftirqd/219:20:012
3461038993530,3cyclictest32-21ksoftirqd/219:20:012
3461038993526,5cyclictest0-21swapper/221:15:212
346103399353,27cyclictest3461161-21cat19:10:020
3461033993530,3cyclictest167350irq/118-8000000.ethernet-tx021:00:180
3461033993522,10cyclictest0-21swapper/021:50:230
3461038993428,4cyclictest311ktimers/220:25:272
3461038993425,5cyclictest167550irq/134-8000000.ethernet-tx220:10:252
3461038993422,8cyclictest0-21swapper/222:00:292
3461038993420,9cyclictest0-21swapper/223:50:282
3461038993420,7cyclictest0-21swapper/219:45:192
346103699345,5cyclictest0-21swapper/120:55:011
3461036993427,3cyclictest3509788-21unixbench_singl23:50:281
3461036993425,4cyclictest3491924-21unixbench_multi22:05:271
3461036993423,8cyclictest0-21swapper/121:05:281
3461036993422,8cyclictest0-21swapper/119:15:311
3461036993422,8cyclictest0-21swapper/119:15:311
3461036993421,7cyclictest0-21swapper/122:40:191
3461036993421,7cyclictest0-21swapper/122:40:191
3461036993420,9cyclictest0-21swapper/120:10:271
3461036993414,12cyclictest231ktimers/123:15:231
346103699341,28cyclictest0-21swapper/120:30:191
346103699341,28cyclictest0-21swapper/120:30:191
346103699341,27cyclictest0-21swapper/121:30:201
346103699341,27cyclictest0-21swapper/120:40:251
346103699341,27cyclictest0-21swapper/120:40:241
3461038993325,4cyclictest0-21swapper/223:40:302
3461038993324,5cyclictest0-21swapper/221:35:282
3461038993324,5cyclictest0-21swapper/219:10:282
3461038993321,8cyclictest0-21swapper/222:45:292
3461038993320,10cyclictest0-21swapper/223:05:262
3461036993325,4cyclictest0-21swapper/122:45:211
3461036993322,8cyclictest0-21swapper/100:15:271
3461036993322,6cyclictest0-21swapper/122:35:311
3461036993322,6cyclictest0-21swapper/120:20:271
3461036993322,6cyclictest0-21swapper/120:05:291
3461036993322,6cyclictest0-21swapper/120:05:291
3461036993321,8cyclictest0-21swapper/120:15:271
3461036993315,13cyclictest0-21swapper/121:50:001
3461038993222,6cyclictest0-21swapper/222:15:292
346103899322,21cyclictest30-21rcuc/223:25:012
3461038993220,8cyclictest0-21swapper/222:10:202
3461038993219,9cyclictest0-21swapper/200:15:192
346103699321,3cyclictest3517391-21unixbench_singl00:35:281
3461038993119,9cyclictest0-21swapper/220:45:282
3461036993126,3cyclictest3511465-21unixbench_multi00:00:291
3461036993122,5cyclictest0-21swapper/121:15:291
3461036993118,10cyclictest0-21swapper/100:30:301
3461038993023,5cyclictest3494772-21/usr/sbin/munin22:25:212
3461038993021,6cyclictest0-21swapper/223:25:302
3461038993017,8cyclictest0-21swapper/222:30:302
346103899301,27cyclictest0-21swapper/223:35:162
3461036993019,7cyclictest0-21swapper/119:40:271
346103699301,14cyclictest3505834-21/usr/sbin/munin23:30:191
3461038992923,3cyclictest0-21swapper/222:50:232
3461038992920,5cyclictest0-21swapper/223:55:292
3461038992919,8cyclictest311ktimers/219:40:222
3461038992919,7cyclictest0-21swapper/221:25:282
3461038992919,7cyclictest0-21swapper/221:25:282
3461038992917,8cyclictest0-21swapper/223:45:202
346103899291,4cyclictest0-21swapper/223:10:152
3461036992921,4cyclictest3495340-21unixbench_singl22:25:301
3461036992920,6cyclictest0-21swapper/100:05:281
3461036992917,8cyclictest0-21swapper/122:20:281
346103899283,18cyclictest3510906-21/usr/sbin/munin00:00:202
3461038992818,7cyclictest0-21swapper/221:50:272
3461038992818,7cyclictest0-21swapper/221:30:162
3461038992818,7cyclictest0-21swapper/221:00:272
346103899281,25cyclictest0-21swapper/223:01:452
346103899281,25cyclictest0-21swapper/220:30:172
346103899281,25cyclictest0-21swapper/220:30:162
3461036992823,3cyclictest0-21swapper/121:00:241
3461036992816,8cyclictest0-21swapper/123:45:271
3461038992719,5cyclictest0-21swapper/222:40:282
3461038992719,5cyclictest0-21swapper/222:40:282
3461036992716,7cyclictest0-21swapper/120:35:181
3461038992617,4cyclictest0-21swapper/223:15:262
346103699262,21cyclictest0-21swapper/100:13:401
3461036992616,7cyclictest0-21swapper/119:50:281
3461036992616,7cyclictest0-21swapper/119:50:281
3461038992516,7cyclictest311ktimers/219:50:152
3461038992516,7cyclictest311ktimers/219:50:142
3461038992516,5cyclictest0-21swapper/220:40:222
3461038992516,5cyclictest0-21swapper/220:40:222
3461038992515,7cyclictest3496611-21dropbear22:35:232
3461038992413,7cyclictest0-21swapper/220:00:292
346103899223,13cyclictest0-21swapper/219:10:012
3461036991914,3cyclictest3460994-21latency_hist19:10:011
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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