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2025-12-05 - 16:52

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #e, slot #5

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.
Unexpectedly long latencies may be caused by SMIs
Total number of samples: 100 million
Resolution of latency scale: normal
Duration: 5 hours, 33 minutes, lowest P state: performance
Compare latency of primary with shadow system
Characteristics of all highest latencies:
System rackeslot5s.osadl.org (updated Fri Dec 05, 2025 12:44:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
17369992323,0cyclictest27763-21apt-get09:48:173
17365992320,2cyclictest313-21systemd-journal12:20:002
17365992320,2cyclictest313-21systemd-journal12:20:002
1736399232,20cyclictest593-21dbus-daemon10:05:011
1736399231,1cyclictest25995-21dump-pmu-power07:40:001
1736399230,2cyclictest12125-21basename10:20:001
1736399230,22cyclictest1-21systemd08:10:001
17356992321,1cyclictest5818-21cron12:20:000
17356992321,1cyclictest5818-21cron12:20:000
17356992320,2cyclictest31059-21perf12:05:000
17369992220,1cyclictest596-21in:imuxsock11:55:003
1736999220,21cyclictest28936-21perf10:55:013
1736999220,21cyclictest24193-21apt-get07:30:003
1736999220,21cyclictest23811-21munin-run09:35:003
1736999220,21cyclictest0-21swapper/311:48:193
1736999220,21cyclictest0-21swapper/309:28:163
1736999220,21cyclictest0-21swapper/309:10:003
1736999220,1cyclictest4066-21awk08:20:003
17365992220,1cyclictest30492-21apt-get12:03:272
17365992220,1cyclictest19320-21awk10:35:002
17365992220,1cyclictest15600-21latency_hist09:05:002
17365992220,1cyclictest15600-21latency_hist09:05:002
17365992220,1cyclictest0-21swapper/207:55:002
1736599220,21cyclictest8829-21apt-get12:28:192
1736599220,21cyclictest2050-21apt09:59:592
1736599220,21cyclictest0-21swapper/211:35:022
1736599220,1cyclictest9505-21apt-get11:23:192
17363992220,1cyclictest23807-21perf09:35:001
17363992220,1cyclictest19270-21apt-get09:15:021
1736399220,21cyclictest6640-21apt-get11:18:201
1736399220,21cyclictest31571-21apt-get12:08:171
1736399220,21cyclictest20761-21basename07:20:001
1736399220,21cyclictest1845-21apt-get11:08:201
1736399220,21cyclictest17918-21apt-get07:10:011
1736399220,21cyclictest0-21swapper/112:33:171
1736399220,21cyclictest0-21swapper/109:43:141
1736399220,1cyclictest28922-21sh10:55:011
17356992220,1cyclictest19326-21sleep10:35:000
17356992220,1cyclictest16881-21cron10:29:590
17356992220,1cyclictest15593-21cron09:05:000
17356992220,1cyclictest15593-21cron09:05:000
17356992220,1cyclictest11901-21apt-get11:28:200
17356992220,1cyclictest0-21swapper/011:23:190
1735699220,21cyclictest16183-21apt-get11:35:020
1735699220,21cyclictest12113-21latency_hist10:20:000
1735699220,1cyclictest25989-21apt07:40:000
1735699220,1cyclictest0-21swapper/010:00:000
1735699220,0cyclictest0-21swapper/010:23:170
1735699220,0cyclictest0-21swapper/009:43:160
17369992121,0cyclictest6380-21apt-get12:23:203
17369992121,0cyclictest0-21swapper/312:03:273
17369992121,0cyclictest0-21swapper/310:13:193
17369992119,1cyclictest20100-21munin-plugin-st07:15:003
1736999210,20cyclictest0-21swapper/312:33:173
1736999210,1cyclictest15616-21munin-plugin-st09:05:003
1736999210,1cyclictest15616-21munin-plugin-st09:05:003
1736999210,0cyclictest24971-21apt-get09:43:163
17365992120,1cyclictest22247-21apt-get10:43:192
17365992120,0cyclictest29437-21apt-get10:58:192
17365992120,0cyclictest0-21swapper/210:38:192
17365992119,1cyclictest5208-21apt-get08:28:162
17365992119,1cyclictest16886-21cron10:30:002
1736599210,21cyclictest12114-21latency_hist10:20:002
1736599210,20cyclictest31855-21apt-get11:03:192
1736599210,20cyclictest12629-21apt-get10:23:182
1736599210,20cyclictest0-21swapper/212:23:202
1736599210,20cyclictest0-21swapper/211:28:202
1736599210,1cyclictest271rcuc/209:15:002
1736599210,1cyclictest27040-21apt-get10:53:172
1736599210,1cyclictest11225-21apt-get12:33:172
1736599210,1cyclictest0-21swapper/209:45:022
1736599210,1cyclictest0-21swapper/207:40:002
1736599210,0cyclictest0-21swapper/209:43:162
1736599210,0cyclictest0-21swapper/209:15:022
17363992121,0cyclictest0-21swapper/109:13:181
17363992119,1cyclictest24145-21munin-run10:44:591
1736399210,21cyclictest0-21swapper/108:58:171
1736399210,20cyclictest0-21swapper/112:13:181
1736399210,20cyclictest0-21swapper/112:05:001
1736399210,20cyclictest0-21swapper/111:28:201
1736399210,0cyclictest0-21swapper/109:45:011
17356992120,1cyclictest19830-21apt-get10:38:190
17356992120,1cyclictest0-21swapper/010:58:200
17356992120,0cyclictest2570-21apt-get10:03:190
17356992118,2cyclictest9295-21awk10:15:000
1735699210,21cyclictest0-21swapper/012:28:180
1735699210,21cyclictest0-21swapper/012:23:200
1735699210,21cyclictest0-21swapper/011:03:190
1735699210,20cyclictest0-21swapper/012:33:170
1735699210,0cyclictest26861-21apt-get09:45:020
1735699210,0cyclictest18649-21apt-get09:15:020
1735699210,0cyclictest0-21swapper/010:53:180
1735699210,0cyclictest0-21swapper/009:28:160
1735699210,0cyclictest0-21swapper/008:58:180
17369992020,0cyclictest26517-21apt-get07:43:163
17369992020,0cyclictest0-21swapper/311:58:193
17369992020,0cyclictest0-21swapper/311:13:163
17369992020,0cyclictest0-21swapper/309:58:193
17369992020,0cyclictest0-21swapper/308:58:183
17369992018,1cyclictest19729-21awk09:20:013
1736999200,20cyclictest0-21swapper/309:53:173
1736999200,19cyclictest0-21swapper/307:58:183
1736999200,0cyclictest6640-21apt-get11:18:203
1736999200,0cyclictest0-21swapper/311:38:203
17365992020,0cyclictest0-21swapper/212:13:182
17365992020,0cyclictest0-21swapper/211:33:192
17365992020,0cyclictest0-21swapper/210:13:192
17365992020,0cyclictest0-21swapper/207:28:182
17365992019,0cyclictest0-21swapper/210:03:192
17365992018,1cyclictest20102-21perf07:15:002
1736599200,0cyclictest13051-21apt-get08:58:182
1736599200,0cyclictest0-21swapper/209:28:162
17363992020,0cyclictest0-21swapper/111:35:021
17363992020,0cyclictest0-21swapper/111:33:191
17363992020,0cyclictest0-21swapper/109:58:191
17363992020,0cyclictest0-21swapper/107:43:161
17363992018,1cyclictest0-21swapper/111:45:001
17356992020,0cyclictest0-21swapper/010:43:190
17356992020,0cyclictest0-21swapper/009:34:590
17356992020,0cyclictest0-21swapper/007:28:180
17356992017,2cyclictest12128-21sh08:55:000
17369991919,0cyclictest0-21swapper/311:23:193
17369991919,0cyclictest0-21swapper/310:08:153
17369991919,0cyclictest0-21swapper/309:40:003
17369991919,0cyclictest0-21swapper/308:43:183
17369991919,0cyclictest0-21swapper/307:30:023
1736999190,18cyclictest0-21swapper/310:18:183
17365991919,0cyclictest0-21swapper/209:35:002
17365991917,1cyclictest24643-21apt-get10:48:182
17365991916,2cyclictest12136-21idleruntime-cro08:55:002
1736599190,0cyclictest0-21swapper/207:20:012
17363991919,0cyclictest0-21swapper/111:20:021
17363991919,0cyclictest0-21swapper/110:23:181
17363991919,0cyclictest0-21swapper/108:28:161
17356991919,0cyclictest0-21swapper/011:48:190
17356991919,0cyclictest0-21swapper/008:28:160
17356991918,1cyclictest0-21swapper/011:53:190
17356991918,1cyclictest0-21swapper/009:15:010
17356991918,0cyclictest8971-21apt-get08:43:170
1735699190,0cyclictest20755-21apt-get07:20:010
17369991818,0cyclictest0-21swapper/311:28:203
17369991818,0cyclictest0-21swapper/310:33:223
17369991818,0cyclictest0-21swapper/310:03:203
17369991818,0cyclictest0-21swapper/309:20:023
17369991818,0cyclictest0-21swapper/308:28:163
17369991816,1cyclictest18649-21apt-get09:15:003
17369991816,1cyclictest1-21systemd08:25:003
17369991815,2cyclictest612-21gdbus10:50:003
17365991818,0cyclictest0-21swapper/211:53:192
17365991818,0cyclictest0-21swapper/211:48:192
17365991818,0cyclictest0-21swapper/208:43:182
17363991818,0cyclictest0-21swapper/111:03:201
17363991818,0cyclictest0-21swapper/110:58:201
17363991818,0cyclictest0-21swapper/108:13:171
17363991818,0cyclictest0-21swapper/107:28:171
17363991818,0cyclictest0-21swapper/107:20:011
17363991816,1cyclictest7753-21munin-run08:35:011
17363991816,1cyclictest313-21systemd-journal07:59:591
17369991717,0cyclictest0-21swapper/312:38:213
17369991717,0cyclictest0-21swapper/312:28:193
1736999170,16cyclictest0-21swapper/311:03:223
17365991716,1cyclictest30161-21apt-get09:53:162
17365991716,0cyclictest0-21swapper/211:18:202
1736599170,16cyclictest24193-21apt-get07:30:022
17363991717,0cyclictest0-21swapper/110:49:591
17363991717,0cyclictest0-21swapper/110:32:251
17363991716,0cyclictest0-21swapper/110:28:201
17356991717,0cyclictest0-21swapper/011:18:200
17356991717,0cyclictest0-21swapper/010:48:180
17356991716,1cyclictest0-21swapper/007:30:020
17356991715,1cyclictest0-21swapper/011:15:000
17369991616,0cyclictest0-21swapper/311:43:173
17369991616,0cyclictest0-21swapper/311:08:193
17369991616,0cyclictest0-21swapper/310:43:193
17369991615,1cyclictest3963-21apt-get12:18:203
17369991615,1cyclictest3963-21apt-get12:18:203
17365991616,0cyclictest0-21swapper/211:43:172
17365991616,0cyclictest0-21swapper/211:08:202
17365991615,1cyclictest6114-21idleruntime-cro11:15:002
17365991614,1cyclictest593-21dbus-daemon08:00:002
17365991614,1cyclictest4694-21grep08:25:002
1736599160,15cyclictest32739-21turbostat.cron08:05:002
1736599160,15cyclictest0-21swapper/208:15:002
17363991616,0cyclictest0-21swapper/111:58:181
17363991616,0cyclictest0-21swapper/110:38:191
17363991616,0cyclictest0-21swapper/108:43:181
17363991614,1cyclictest4063-21munin-run08:20:001
17363991613,2cyclictest8254-21latency_hist12:25:001
17363991613,1cyclictest0-21swapper/111:13:171
1736399160,15cyclictest9313-21munin-plugin-st10:15:001
17356991616,0cyclictest0-21swapper/011:43:170
17356991616,0cyclictest0-21swapper/011:08:200
17356991616,0cyclictest0-21swapper/009:53:170
17356991616,0cyclictest0-21swapper/008:13:170
17356991615,1cyclictest20331-21apt-get09:20:020
17356991614,1cyclictest8379-21perf08:39:590
17356991614,1cyclictest0-21swapper/008:25:000
17356991614,1cyclictest0-21swapper/008:00:000
1735699160,15cyclictest593-21dbus-daemon08:05:000
17369991515,0cyclictest0-21swapper/310:23:173
17369991513,1cyclictest0-21swapper/311:33:263
1736999150,1cyclictest8416-21sendmail-msp08:40:003
1736999150,0cyclictest0-21swapper/310:28:203
17365991515,0cyclictest13629-21apt-get12:38:212
17365991513,1cyclictest8413-21idleruntime-cro08:40:002
17365991513,1cyclictest0-21swapper/209:09:592
1736599150,14cyclictest0-21swapper/207:20:002
17363991513,1cyclictest15577-21cron09:05:001
17363991513,1cyclictest15577-21cron09:04:591
1736399150,14cyclictest0-21swapper/107:35:001
17356991515,0cyclictest0-21swapper/012:38:210
17356991513,1cyclictest16260-21munin-run09:10:000
17356991513,1cyclictest14475-21grep11:33:190
17356991513,1cyclictest0-21swapper/009:40:000
17369991414,0cyclictest0-21swapper/312:06:093
17369991414,0cyclictest0-21swapper/310:35:173
17369991414,0cyclictest0-21swapper/308:31:063
17369991414,0cyclictest0-21swapper/307:50:383
17369991414,0cyclictest0-21swapper/307:20:013
1736999140,14cyclictest0-21swapper/312:11:093
1736999140,14cyclictest0-21swapper/308:50:133
1736999140,14cyclictest0-21swapper/308:46:113
1736999140,14cyclictest0-21swapper/308:10:243
1736999140,14cyclictest0-21swapper/308:00:033
1736999140,14cyclictest0-21swapper/307:45:463
1736999140,14cyclictest0-21swapper/307:37:293
1736999140,14cyclictest0-21swapper/307:17:323
1736999140,0cyclictest0-21swapper/308:07:433
17365991414,0cyclictest0-21swapper/209:20:022
1736599140,14cyclictest0-21swapper/212:05:032
1736599140,14cyclictest0-21swapper/211:57:322
1736599140,14cyclictest0-21swapper/210:05:052
1736599140,14cyclictest0-21swapper/209:35:532
1736599140,14cyclictest0-21swapper/208:16:512
1736599140,14cyclictest0-21swapper/208:07:342
1736599140,14cyclictest0-21swapper/207:41:432
1736599140,0cyclictest0-21swapper/208:46:502
1736599140,0cyclictest0-21swapper/208:30:132
1736599140,0cyclictest0-21swapper/207:45:012
17363991414,0cyclictest0-21swapper/111:47:261
17363991414,0cyclictest0-21swapper/110:05:271
17363991414,0cyclictest0-21swapper/108:51:061
17363991414,0cyclictest0-21swapper/107:50:241
17363991414,0cyclictest0-21swapper/107:45:511
1736399140,14cyclictest0-21swapper/112:26:581
1736399140,14cyclictest0-21swapper/109:25:361
1736399140,14cyclictest0-21swapper/109:20:191
1736399140,14cyclictest0-21swapper/108:45:411
1736399140,14cyclictest0-21swapper/108:21:041
1736399140,14cyclictest0-21swapper/108:00:141
1736399140,0cyclictest0-21swapper/112:36:081
1736399140,0cyclictest0-21swapper/109:05:461
17356991414,0cyclictest0-21swapper/012:10:430
17356991414,0cyclictest0-21swapper/008:45:140
1735699140,14cyclictest0-21swapper/012:05:030
1735699140,14cyclictest0-21swapper/011:57:330
1735699140,14cyclictest0-21swapper/010:05:050
1735699140,14cyclictest0-21swapper/008:15:150
1735699140,14cyclictest0-21swapper/008:05:050
1735699140,14cyclictest0-21swapper/007:50:200
1735699140,14cyclictest0-21swapper/007:41:360
1735699140,14cyclictest0-21swapper/007:16:460
1735699140,0cyclictest0-21swapper/008:30:130
1735699140,0cyclictest0-21swapper/007:45:010
17363991313,0cyclictest0-21swapper/108:39:211
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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