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2025-12-25 - 01:39

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #1, 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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  Intel
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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
Compare latency of primary with shadow system
Characteristics of the highest latencies:
System rack1slot6s.osadl.org (updated Thu Dec 25, 2025 00:43:32)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
98609910021,13cyclictest0-21swapper/022:24:130
986099945,80cyclictest0-21swapper/019:43:350
9860999132,51cyclictest2448-21gltestperf22:04:040
986099905,77cyclictest0-21swapper/023:14:160
986099904,78cyclictest0-21swapper/022:39:150
986099903,32cyclictest14473-21latency_hist23:38:430
986099895,27cyclictest0-21swapper/023:19:170
986099894,77cyclictest0-21swapper/019:29:110
986099894,76cyclictest0-21swapper/022:51:420
9860998925,55cyclictest0-21swapper/021:48:460
248599870,5rtkit-daemon2484-21rtkit-daemon20:14:042
986099864,30cyclictest27505-21tune2fs19:34:100
9860998628,10cyclictest18751-21grep20:24:040
986099855,9cyclictest1419-21runrttasks22:53:550
9860998529,8cyclictest11141-21cat21:14:110
9860998529,8cyclictest11141-21cat21:14:110
9860998517,9cyclictest8605-21idleruntime-cro20:03:510
986099844,35cyclictest0-21swapper/020:29:030
986099844,35cyclictest0-21swapper/020:29:030
986099844,24cyclictest0-21swapper/020:16:400
986099844,23cyclictest4434-21cpuspeed_turbos19:54:070
986099835,69cyclictest0-21swapper/023:13:110
986099834,29cyclictest0-21swapper/019:09:280
986099834,23cyclictest17889-21cut19:14:090
986099834,22cyclictest0-21swapper/023:28:550
986099834,22cyclictest0-21swapper/023:28:550
986099834,13cyclictest0-21swapper/000:18:540
986099833,30cyclictest0-21swapper/020:44:000
9860998327,48cyclictest0-21swapper/021:34:180
9860998323,13cyclictest0-21swapper/021:49:080
9860998321,14cyclictest0-21swapper/022:34:170
9860998320,12cyclictest0-21swapper/000:09:110
9860998317,8cyclictest10079-21munin-node18:59:160
986099825,13cyclictest0-21swapper/020:54:150
986099824,68cyclictest0-21swapper/019:19:040
986099824,34cyclictest0-21swapper/023:39:070
986099824,33cyclictest0-21swapper/019:44:040
986099824,32cyclictest0-21swapper/021:10:570
986099824,31cyclictest0-21swapper/019:24:040
986099824,26cyclictest0-21swapper/023:24:090
986099824,26cyclictest0-21swapper/023:24:090
986099824,12cyclictest0-21swapper/022:46:130
986099824,12cyclictest0-21swapper/022:46:130
986099824,12cyclictest0-21swapper/021:19:050
986099814,32cyclictest0-21swapper/000:28:410
986099814,31cyclictest0-21swapper/019:51:290
986099814,31cyclictest0-21swapper/019:51:290
986099814,29cyclictest0-21swapper/022:19:130
986099814,26cyclictest0-21swapper/023:53:410
986099813,29cyclictest0-21swapper/023:58:540
986099807,24cyclictest13676-21grep19:04:170
986099807,24cyclictest13676-21grep19:04:170
986099804,68cyclictest0-21swapper/021:24:050
986099804,68cyclictest0-21swapper/020:34:090
986099804,31cyclictest0-21swapper/022:16:370
986099804,31cyclictest0-21swapper/022:10:480
986099804,27cyclictest0-21swapper/021:39:200
986099804,24cyclictest0-21swapper/000:03:520
986099804,22cyclictest0-21swapper/020:59:010
986099794,26cyclictest0-21swapper/022:31:110
986099794,16cyclictest0-21swapper/021:54:160
986099793,25cyclictest0-21swapper/021:04:000
986099784,11cyclictest0-21swapper/021:59:160
986099784,11cyclictest0-21swapper/021:59:160
986099783,12cyclictest0-21swapper/020:23:310
9860997822,11cyclictest1419-21runrttasks20:09:030
9860997818,11cyclictest18390-21ntp_states23:44:090
986099774,25cyclictest0-21swapper/021:29:030
986099774,16cyclictest0-21swapper/020:39:020
9864997633,26cyclictest2632-21latency_hist20:58:483
9864997627,41cyclictest0-21swapper/322:38:583
9862997611,57cyclictest0-21swapper/123:39:011
986099754,28cyclictest1174-21latency_hist00:18:410
986099754,26cyclictest0-21swapper/023:03:580
9864997423,34cyclictest0-21swapper/319:39:113
986299745,61cyclictest0-21swapper/120:39:071
986099743,9cyclictest1683-21nscd23:58:410
9864997333,33cyclictest15643-21gltestperf21:24:073
9864997324,42cyclictest0-21swapper/319:36:303
9864997323,33cyclictest0-21swapper/320:28:493
9864997320,45cyclictest0-21swapper/321:58:473
9864997319,47cyclictest0-21swapper/321:43:473
986099734,14cyclictest0-21swapper/022:58:570
9864997231,34cyclictest32249-21cut19:44:103
9864997225,40cyclictest0-21swapper/322:49:093
9864997224,41cyclictest27895-21munin-node22:59:163
9864997224,40cyclictest13320-21turbostat22:28:443
9864997224,27cyclictest18170-21munin-run20:23:493
9864997215,48cyclictest0-21swapper/320:39:013
9864997144,21cyclictest0-21swapper/321:04:193
9864997124,41cyclictest31381-21cut20:49:123
9864997121,43cyclictest32766-21munin-node00:14:093
9864997120,34cyclictest0-21swapper/300:10:083
9864997026,28cyclictest22191-21switchtime22:44:163
9864997026,28cyclictest22191-21switchtime22:44:163
9864997025,31cyclictest0-21swapper/323:23:013
9864997023,27cyclictest13475-21cat20:13:503
9864997022,30cyclictest0-21swapper/320:04:183
9864996921,41cyclictest15709-21latency_hist22:33:453
9864996921,40cyclictest0-21swapper/320:18:503
9864996824,36cyclictest26834-21telnet00:03:533
9862996814,47cyclictest2450-21gltestperf19:49:131
9862996814,47cyclictest2450-21gltestperf19:49:131
9864996727,33cyclictest1422-21aten_r1power_cu00:18:523
9864996723,38cyclictest11536-21swap18:59:233
9864996723,28cyclictest17988-21gltestperf23:44:023
9864996722,38cyclictest3154-21cat22:04:173
9864996710,50cyclictest0-21swapper/319:59:173
9864996623,36cyclictest0-21swapper/321:49:003
9864996623,28cyclictest9933-21munin-node23:29:023
9864996623,28cyclictest9933-21munin-node23:29:023
9864996622,12cyclictest19838-21cpuspeed_turbos21:33:593
9864996619,40cyclictest15996-21ntp_states23:39:103
9862996620,38cyclictest13291-21gltestperf19:04:121
9862996620,38cyclictest13291-21gltestperf19:04:121
9862996616,43cyclictest0-21swapper/122:29:021
9864996526,29cyclictest3841-21munin-run19:53:513
9864996526,29cyclictest3841-21munin-run19:53:513
9864996524,26cyclictest16001-21ls19:09:173
9864996523,35cyclictest16833-21hddtemp_smartct22:34:043
9864996521,36cyclictest2769-21munin-node23:13:593
9864996517,41cyclictest0-21swapper/319:54:213
986299657,52cyclictest0-21swapper/121:49:141
9862996512,32cyclictest0-21swapper/100:13:521
9864996443,15cyclictest0-21swapper/322:57:483
986499644,52cyclictest0-21swapper/321:08:583
9864996428,30cyclictest1096-21gltestperf23:09:023
9864996424,33cyclictest0-21swapper/321:18:473
9864996424,33cyclictest0-21swapper/321:18:473
9864996423,32cyclictest19757-21telnet19:19:033
9864996423,14cyclictest0-21swapper/320:45:083
9864996422,35cyclictest22793-21hddtemp_smartct23:54:023
9864996419,37cyclictest7537-21munin-node23:23:563
9864996419,37cyclictest7537-21munin-node23:23:563
9864996418,38cyclictest21677-21munin-run23:53:413
9862996418,39cyclictest29402-21cpuspeed_turbos00:08:541
9862996411,46cyclictest0-21swapper/122:14:011
9864996339,17cyclictest12397-21munin-node21:19:193
9864996334,23cyclictest23682-21unixbench-2d19:24:253
9864996328,28cyclictest12646-21tr23:33:563
9864996326,31cyclictest1419-21runrttasks20:35:003
9864996325,31cyclictest1287-21snmpd19:06:063
9864996325,31cyclictest1287-21snmpd19:06:063
9864996323,33cyclictest2848-21munin-node20:59:133
9864996323,33cyclictest24293-21munin-node23:59:063
9864996322,28cyclictest17304-21chrt21:29:003
9864996319,30cyclictest0-21swapper/319:15:023
9864996317,39cyclictest30313-21aten_r1power_en23:03:563
9864996313,35cyclictest0-21swapper/321:59:013
9864996313,35cyclictest0-21swapper/321:59:013
9862996317,39cyclictest1419-21runrttasks20:03:011
9862996315,41cyclictest23917-21runrttasks23:57:001
9862996314,43cyclictest0-21swapper/120:34:141
9864996230,26cyclictest9647-21cut22:19:083
9864996220,25cyclictest26521-21cut21:48:463
9862996218,37cyclictest12167-21munin-plugin-st21:18:471
9862996218,37cyclictest12167-21munin-plugin-st21:18:471
9862996215,39cyclictest0-21swapper/123:13:401
9862996210,46cyclictest0-21swapper/120:26:181
9864996123,31cyclictest1419-21runrttasks22:08:503
986299613,52cyclictest0-21swapper/123:03:581
986299613,44cyclictest0-21swapper/121:33:591
9862996119,34cyclictest10459-21unixbench-2d22:19:211
9864996014,16cyclictest0-21swapper/319:29:153
986299609,44cyclictest0-21swapper/123:33:591
986299606,47cyclictest0-21swapper/119:29:191
9862996040,13cyclictest0-21swapper/119:44:061
9862996039,14cyclictest0-21swapper/121:44:171
9862996018,37cyclictest19332-21latency_hist23:48:421
9862996016,27cyclictest4070-21munin-node19:54:141
9862996014,30cyclictest0-21swapper/100:23:551
9862996010,43cyclictest11810-21runrttasks23:30:101
9862996010,43cyclictest11810-21runrttasks23:30:101
986499596,47cyclictest0-21swapper/300:26:163
9864995926,26cyclictest1419-21runrttasks20:30:243
9864995926,26cyclictest1419-21runrttasks20:30:243
986299597,46cyclictest0-21swapper/121:19:031
9862995918,25cyclictest30449-21aten_r1power_po20:49:011
9862995914,39cyclictest6702-21switchtime21:04:201
9862995911,42cyclictest17820-21runrttasks19:14:071
9864995825,27cyclictest0-21swapper/322:13:583
986299585,45cyclictest0-21swapper/121:59:031
986299585,45cyclictest0-21swapper/121:59:031
9862995811,41cyclictest1568-21aten2.4-expect22:03:571
248599580,5rtkit-daemon2484-21rtkit-daemon21:39:081
9862995719,31cyclictest25866-21tr22:53:581
9862995715,36cyclictest0-21swapper/119:10:061
9862995715,11cyclictest24123-21iostat22:49:061
986299566,43cyclictest0-21swapper/122:23:571
9862995635,16cyclictest29852-21taskset23:01:161
9862995623,27cyclictest29621-21df_abs19:39:061
9862995621,28cyclictest20313-21tail23:49:041
9862995618,31cyclictest32734-21munin-node20:54:021
9862995618,22cyclictest0-21swapper/122:39:121
9862995616,34cyclictest24888-21munin-node23:58:591
9862995613,38cyclictest0-21swapper/120:14:031
9862995611,38cyclictest9148-21timerandwakeup21:09:191
986299558,41cyclictest0-21swapper/100:05:141
986299556,42cyclictest0-21swapper/123:14:071
9862995517,31cyclictest21739-21runrttasks19:23:221
9862995517,31cyclictest1419-21runrttasks21:01:291
9862995515,34cyclictest7256-21sshd23:23:111
9862995515,33cyclictest0-21swapper/120:04:021
9862995511,38cyclictest0-21swapper/118:59:041
9862995510,38cyclictest0-21swapper/100:18:551
9862995510,15cyclictest0-21swapper/120:19:091
986299548,40cyclictest0-21swapper/121:24:181
986299546,42cyclictest0-21swapper/121:53:571
9862995415,32cyclictest3998-21munin-node22:09:101
9862995410,38cyclictest0-21swapper/121:29:091
986299538,39cyclictest0-21swapper/122:44:111
986299538,39cyclictest0-21swapper/122:44:111
986299538,39cyclictest0-21swapper/119:24:041
9862995327,20cyclictest11591-21tr20:09:041
986399524,30cyclictest0-21swapper/219:49:112
986399524,30cyclictest0-21swapper/219:49:112
986399524,29cyclictest0-21swapper/220:04:132
9863995237,9cyclictest25174-21cut23:59:022
9863995233,11cyclictest8497-21sed21:09:072
9863995224,20cyclictest1128-21crond22:38:442
9863995221,13cyclictest0-21swapper/222:59:052
986299524,30cyclictest0-21swapper/120:30:491
986299524,30cyclictest0-21swapper/120:30:491
269512525,8sleep227057-21cpuspeed_turbos19:34:052
248599520,5rtkit-daemon2484-21rtkit-daemon19:19:132
9864995124,21cyclictest0-21swapper/318:58:533
986399514,29cyclictest0-21swapper/219:14:242
986299518,37cyclictest0-21swapper/120:44:151
986299515,39cyclictest0-21swapper/118:58:531
9862995118,27cyclictest26849-21tail19:34:031
239032513,40sleep20-21swapper/219:25:312
986399504,29cyclictest0-21swapper/223:39:002
986399504,25cyclictest0-21swapper/219:44:052
986399504,21cyclictest0-21swapper/220:54:062
986299504,40cyclictest0-21swapper/122:37:251
9862995010,33cyclictest0-21swapper/123:24:181
9862995010,33cyclictest0-21swapper/123:24:181
986399494,28cyclictest0-21swapper/222:24:092
986399494,28cyclictest0-21swapper/221:59:082
986399494,28cyclictest0-21swapper/221:59:082
986399494,28cyclictest0-21swapper/200:24:002
986399494,27cyclictest0-21swapper/222:38:562
986399494,27cyclictest0-21swapper/222:14:042
986399494,27cyclictest0-21swapper/221:54:012
986399494,27cyclictest0-21swapper/220:19:232
986399494,27cyclictest0-21swapper/219:29:162
986399494,27cyclictest0-21swapper/200:09:062
986399494,26cyclictest0-21swapper/221:27:132
986399494,25cyclictest0-21swapper/220:01:142
986399494,24cyclictest0-21swapper/220:24:032
9863994932,11cyclictest3126-21cpuspeed_turbos23:13:592
986399493,28cyclictest0-21swapper/220:44:112
9863994920,12cyclictest0-21swapper/222:09:072
9863994919,10cyclictest29241-21telnet19:39:022
9863994918,10cyclictest9933-21munin-node23:29:032
9863994918,10cyclictest9933-21munin-node23:29:032
225182493,8sleep222525-21diskstats21:39:042
986399485,27cyclictest0-21swapper/220:38:502
986399484,38cyclictest0-21swapper/223:09:152
986399484,27cyclictest0-21swapper/221:34:092
986399484,27cyclictest0-21swapper/221:29:072
986399484,27cyclictest0-21swapper/221:19:222
986399484,27cyclictest0-21swapper/220:09:132
986399484,27cyclictest0-21swapper/219:54:172
986399484,27cyclictest0-21swapper/218:59:082
986399484,26cyclictest0-21swapper/200:17:282
9863994831,10cyclictest9631-21grep22:19:082
9863994831,10cyclictest14238-21cut22:29:032
986399483,20cyclictest0-21swapper/222:04:062
9863994829,10cyclictest1419-21runrttasks20:39:232
9863994820,12cyclictest0-21swapper/221:48:472
9863994819,12cyclictest0-21swapper/200:19:022
94912484,38sleep00-21swapper/018:54:300
47742482,40sleep20-21swapper/221:00:592
274142482,10sleep20-21swapper/222:55:372
190672482,10sleep20-21swapper/223:46:162
145352482,10sleep20-21swapper/219:07:532
145352482,10sleep20-21swapper/219:07:532
986399474,28cyclictest0-21swapper/223:26:472
986399474,28cyclictest0-21swapper/223:26:472
986399474,27cyclictest0-21swapper/223:58:002
986399474,26cyclictest0-21swapper/221:49:012
986399474,26cyclictest0-21swapper/220:49:072
986399474,26cyclictest0-21swapper/219:09:192
986399474,25cyclictest0-21swapper/222:51:422
986399473,27cyclictest0-21swapper/221:04:102
288152472,10sleep20-21swapper/200:08:362
986399464,26cyclictest0-21swapper/223:49:012
986399464,25cyclictest0-21swapper/223:35:032
986399463,26cyclictest0-21swapper/221:14:212
986399463,26cyclictest0-21swapper/221:14:212
9863994629,11cyclictest31031-21cut23:04:032
9863994627,12cyclictest21646-21grep20:29:072
9863994627,12cyclictest21646-21grep20:29:072
986399454,24cyclictest0-21swapper/223:19:062
9863994530,10cyclictest21574-21head22:44:052
9863994530,10cyclictest21574-21head22:44:052
9860994519,20cyclictest0-21swapper/020:06:070
986099434,33cyclictest0-21swapper/020:49:080
9863994113,12cyclictest0-21swapper/218:58:542
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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