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2026-04-06 - 18:28

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 Mon Apr 06, 2026 12:44:47)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2753016997110,24cyclictest0-21swapper/111:25:011
2753016996616,18cyclictest22-21rcuc/111:10:011
2753014996113,44cyclictest2767782-21latency_hist08:35:000
275301699603,19cyclictest0-21swapper/111:45:011
275301699603,19cyclictest0-21swapper/111:45:011
275301499601,9cyclictest0-21swapper/007:55:180
2753016995747,5cyclictest2754029-21cut07:15:021
2753018995337,10cyclictest1283-21cron09:15:012
2753018995337,10cyclictest1283-21cron09:15:012
275301899521,28cyclictest0-21swapper/208:55:002
275301699524,12cyclictest14-21rcu_preempt12:30:021
275301899515,21cyclictest0-21swapper/208:45:012
275301699516,19cyclictest24-21ksoftirqd/110:00:201
275301499511,48cyclictest0-21swapper/009:40:250
275301499511,46cyclictest2801692-21mailstats11:50:270
275301899501,33cyclictest0-21swapper/211:40:012
275301899501,31cyclictest0-21swapper/210:40:022
2753016995041,5cyclictest2804360-21munin-plugin-st12:10:001
2753016995041,5cyclictest2804360-21munin-plugin-st12:10:001
2753016995039,6cyclictest2760914-21grep07:50:291
2753016995028,16cyclictest0-21swapper/108:35:021
2753016995012,3cyclictest0-21swapper/109:00:011
275301499501,43cyclictest0-21swapper/008:45:130
2753018994940,5cyclictest2773707-21munin-plugin-st09:10:002
2753016994914,23cyclictest2775605-21/usr/sbin/munin09:20:191
2753014994942,4cyclictest2773706-21grep09:10:000
2753014994916,3cyclictest0-21swapper/008:40:270
2753018994834,8cyclictest2799948-21grep11:40:272
2753018994834,8cyclictest2799948-21grep11:40:262
2753016994836,8cyclictest2765164-21munin-plugin-st08:19:591
2753016994739,4cyclictest1261-21rs:main1
2753016994737,6cyclictest0-21swapper/111:20:001
2753016994735,8cyclictest0-21swapper/109:15:281
2753016994734,9cyclictest0-21swapper/108:00:201
2753014994736,8cyclictest0-21swapper/007:39:590
2753014994635,7cyclictest2760893-21grep07:50:280
2753018994536,5cyclictest167550irq/134-8000000.ethernet-tx212:10:282
2753018994534,7cyclictest2809557-21grep12:35:292
2753016994531,10cyclictest0-21swapper/107:35:001
2753016994433,7cyclictest2800837-21grep11:45:291
2753014994437,4cyclictest20650irq/252-8000000.ethernet12:20:030
275301499442,39cyclictest0-21swapper/008:25:260
275301499441,41cyclictest0-21swapper/007:40:250
275301499441,2cyclictest0-21swapper/009:55:010
2753018994333,5cyclictest0-21swapper/208:15:292
2753018994332,6cyclictest2762536-21grep08:00:272
275301699437,4cyclictest24-21ksoftirqd/112:05:011
275301499433,6cyclictest0-21swapper/009:00:280
2753014994334,5cyclictest167350irq/118-8000000.ethernet-tx011:45:000
2753014994334,5cyclictest167350irq/118-8000000.ethernet-tx011:45:000
275301499431,38cyclictest2807979-21latency_hist12:30:010
2753018994230,8cyclictest2783851-21grep10:05:292
2753016994237,2cyclictest2792445-21sendmail11:00:001
2753016994231,6cyclictest0-21swapper/112:35:291
2753016994230,7cyclictest2765917-21grep08:20:271
2753016994228,8cyclictest0-21swapper/109:54:591
275301499421,5cyclictest2774442-21grep09:10:270
275301499421,5cyclictest2774442-21grep09:10:260
275301499421,39cyclictest0-21swapper/008:00:190
2753018994130,4cyclictest0-21swapper/212:30:012
2753016994131,7cyclictest231ktimers/110:20:161
2753016994131,7cyclictest231ktimers/110:20:161
2753016994121,12cyclictest0-21swapper/112:20:021
2753016994110,25cyclictest0-21swapper/111:05:231
2753014994131,6cyclictest2794096-21grep11:05:280
2753014994130,7cyclictest0-21swapper/012:30:270
2753014994124,15cyclictest0-21swapper/011:20:230
275301499412,36cyclictest0-21swapper/011:45:190
275301499411,5cyclictest0-21swapper/007:25:240
275301499411,36cyclictest2763011-21fschecks_time08:05:210
275301499411,36cyclictest2763011-21fschecks_time08:05:210
2753018994027,9cyclictest0-21swapper/207:40:292
2753016994032,5cyclictest2782228-21grep10:00:001
275301499407,2cyclictest0-21swapper/012:00:020
2753014994032,5cyclictest2777082-21munin-plugin-st09:30:010
2753014994028,8cyclictest0-21swapper/007:35:000
275301499401,37cyclictest0-21swapper/010:25:130
275301499401,37cyclictest0-21swapper/008:15:200
275301499401,35cyclictest0-21swapper/011:30:010
275301499401,10cyclictest0-21swapper/009:25:010
2753018993929,5cyclictest0-21swapper/209:00:272
2753018993925,7cyclictest0-21swapper/207:25:302
2753016993928,6cyclictest0-21swapper/108:50:011
2753016993910,12cyclictest2798559-21/usr/sbin/munin11:35:181
275301499395,31cyclictest0-21swapper/010:54:230
2753014993931,4cyclictest2804361-21munin-plugin-st12:09:590
2753014993931,4cyclictest2804361-21munin-plugin-st12:09:590
2753014993931,4cyclictest2754202-21memory07:15:040
2753014993931,4cyclictest167350irq/118-8000000.ethernet-tx008:10:030
2753014993930,4cyclictest0-21swapper/009:50:010
2753014993930,3cyclictest20850irq/208-8000000.ethernet10:20:010
275301499392,3cyclictest2774944-21tune2fs09:15:200
275301499391,5cyclictest2771960-21sed08:55:290
275301499391,4cyclictest0-21swapper/010:45:230
275301499391,36cyclictest0-21swapper/012:00:180
275301499391,36cyclictest0-21swapper/010:55:250
275301499391,36cyclictest0-21swapper/010:20:180
275301499391,36cyclictest0-21swapper/010:20:180
275301499391,36cyclictest0-21swapper/009:55:190
275301499391,36cyclictest0-21swapper/008:20:170
2753018993827,6cyclictest0-21swapper/210:10:282
2753018993825,8cyclictest0-21swapper/207:35:282
2753018993812,13cyclictest311ktimers/211:10:002
2753016993828,6cyclictest0-21swapper/111:00:281
2753016993828,6cyclictest0-21swapper/111:00:281
275301499382,27cyclictest2789837-21latency_hist10:45:010
275301499381,35cyclictest0-21swapper/011:35:130
275301899373,20cyclictest2779817-21/usr/sbin/munin09:45:182
2753018993729,4cyclictest0-21swapper/207:35:002
2753018993721,12cyclictest311ktimers/209:55:132
275301899372,10cyclictest2755801-21apt-get07:25:012
2753016993730,4cyclictest2768633-21run-parts08:40:001
2753016993729,4cyclictest0-21swapper/111:55:001
2753016993719,9cyclictest0-21swapper/110:15:251
275301699371,4cyclictest0-21swapper/107:50:011
275301699371,30cyclictest2764446-21sort08:15:001
275301699371,29cyclictest2787499-21kworker/u8:2+rpciod10:53:211
275301699371,29cyclictest0-21swapper/109:25:191
2753014993731,4cyclictest0-21swapper/011:25:260
275301499371,3cyclictest0-21swapper/010:30:200
275301499371,34cyclictest0-21swapper/010:05:150
275301499371,34cyclictest0-21swapper/008:50:170
275301499371,34cyclictest0-21swapper/007:45:140
275301499371,33cyclictest2777441-21dropbear09:30:200
275301499370,4cyclictest2753184-21apt-get07:10:110
2753018993627,4cyclictest0-21swapper/210:25:282
2753018993622,6cyclictest0-21swapper/207:15:012
2753018993621,11cyclictest0-21swapper/211:30:192
275301899361,28cyclictest2803722-21/usr/sbin/munin12:05:292
275301899361,28cyclictest2803722-21/usr/sbin/munin12:05:292
2753016993628,5cyclictest231ktimers/107:55:191
2753016993627,6cyclictest231ktimers/110:05:171
2753016993625,6cyclictest0-21swapper/110:45:321
2753016993624,6cyclictest0-21swapper/112:10:271
2753016993620,9cyclictest0-21swapper/110:35:251
2753014993631,3cyclictest0-21swapper/012:10:210
2753014993630,3cyclictest0-21swapper/011:03:150
2753014993630,3cyclictest0-21swapper/011:03:150
2753014993629,4cyclictest20850irq/208-8000000.ethernet11:20:010
275301499361,7cyclictest0-21swapper/008:40:000
275301499361,33cyclictest0-21swapper/010:10:160
275301899353,25cyclictest0-21swapper/207:50:082
2753018993527,4cyclictest2796578-21grep11:20:282
2753018993526,4cyclictest0-21swapper/209:39:592
2753018993521,9cyclictest0-21swapper/208:30:272
2753016993528,4cyclictest231ktimers/107:40:221
2753016993525,5cyclictest231ktimers/108:50:221
2753016993524,5cyclictest0-21swapper/109:50:011
2753016993523,6cyclictest231ktimers/108:25:261
2753016993519,11cyclictest0-21swapper/111:30:201
275301499356,25cyclictest15-21rcuc/011:10:010
2753014993529,3cyclictest0-21swapper/012:15:230
2753014993525,6cyclictest0-21swapper/010:40:010
2753014993520,10cyclictest0-21swapper/010:00:170
275301499351,31cyclictest0-21swapper/007:20:270
275301499351,2cyclictest2809051-21ssh12:35:200
275301899344,5cyclictest0-21swapper/208:10:012
275301899344,5cyclictest0-21swapper/208:10:012
2753018993426,5cyclictest0-21swapper/211:15:162
2753018993425,5cyclictest0-21swapper/208:20:172
2753018993424,7cyclictest2782965-21grep10:00:292
2753018993423,5cyclictest0-21swapper/212:00:212
2753018993422,8cyclictest2793090-21grep11:00:262
2753018993422,8cyclictest2793090-21grep11:00:262
275301899341,3cyclictest0-21swapper/210:25:002
275301899341,3cyclictest0-21swapper/210:25:002
2753016993426,5cyclictest47-21kauditd09:15:011
2753016993426,5cyclictest47-21kauditd09:15:001
2753016993426,5cyclictest0-21swapper/110:15:011
2753016993425,6cyclictest231ktimers/110:25:271
2753016993424,7cyclictest231ktimers/109:35:161
2753016993422,7cyclictest231ktimers/107:25:131
275301699341,5cyclictest0-21swapper/111:56:201
275301699341,27cyclictest24-21ksoftirqd/108:05:221
275301699341,27cyclictest24-21ksoftirqd/108:05:211
2753018993325,5cyclictest0-21swapper/210:55:272
2753018993322,5cyclictest0-21swapper/210:50:272
2753018993320,8cyclictest0-21swapper/211:05:202
2753016993322,5cyclictest231ktimers/112:30:171
275301699331,27cyclictest0-21swapper/110:44:101
275301699331,26cyclictest0-21swapper/111:20:081
275301899325,5cyclictest2789836-21apt-get10:45:012
2753018993225,5cyclictest2770102-21tail08:45:272
2753018993224,4cyclictest0-21swapper/209:30:272
2753018993224,4cyclictest0-21swapper/209:30:012
2753018993216,9cyclictest0-21swapper/212:20:012
2753016993224,6cyclictest231ktimers/107:15:031
2753016993222,5cyclictest0-21swapper/109:40:261
2753018993124,4cyclictest0-21swapper/209:50:262
2753018993124,4cyclictest0-21swapper/207:55:252
2753018993124,4cyclictest0-21swapper/207:19:592
2753018993122,7cyclictest0-21swapper/208:10:272
2753018993122,6cyclictest2768735-21wc08:40:012
2753018993121,5cyclictest0-21swapper/210:30:252
2753018993121,5cyclictest0-21swapper/209:15:282
275301899311,25cyclictest0-21swapper/207:45:092
2753018993112,4cyclictest8321systemd-network10:45:052
2753016993121,7cyclictest231ktimers/109:30:151
2753016993121,6cyclictest231ktimers/109:05:231
2753016993116,8cyclictest0-21swapper/110:30:181
275301699311,24cyclictest0-21swapper/109:00:091
2753016993110,13cyclictest0-21swapper/107:25:011
2753014993116,9cyclictest0-21swapper/009:35:190
275301499311,4cyclictest0-21swapper/007:10:010
2753018993021,6cyclictest1660-21snmpd09:42:592
2753018993020,7cyclictest2806347-21sshd12:20:092
2753018992923,4cyclictest0-21swapper/211:50:262
2753018992917,8cyclictest2801143-21cat11:50:002
275301899291,2cyclictest0-21swapper/210:15:252
2753016992921,5cyclictest0-21swapper/108:40:291
2753016992919,7cyclictest22-21rcuc/112:20:091
2753018992819,6cyclictest0-21swapper/208:25:292
275301899279,13cyclictest30-21rcuc/212:00:012
2753018992721,3cyclictest0-21swapper/212:30:192
2753018992718,6cyclictest0-21swapper/209:20:292
2753018992616,7cyclictest0-21swapper/208:55:282
2753016992515,5cyclictest231ktimers/107:10:011
2753018992216,3cyclictest0-21swapper/211:25:192
275301899203,10cyclictest2753025-21latency_hist07:10:002
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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