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2025-07-16 - 13:43
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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, lowest P state: performance
Compare latency of primary with shadow system
Characteristics of the 792 highest latencies:
System rack3slot6.osadl.org (updated Wed Jul 16, 2025 00:44:59)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
13900210516,35sleep10-21swapper/119:07:301
1432199886,69cyclictest22202-21apt-get19:30:130
1257928435,38sleep00-21swapper/019:05:130
1432199836,66cyclictest16420-21apt-get20:45:160
14321997850,17cyclictest15303-21apt-get23:45:140
14321997747,14cyclictest21968-21apt-get21:00:210
14321997744,26cyclictest27796-21apt-get19:45:150
14321997739,24cyclictest0-21swapper/000:25:150
14321997646,14cyclictest8267-21apt-get23:25:140
14321997637,24cyclictest0-21swapper/023:20:140
1432199757,58cyclictest27908-21apt-get00:20:150
14321997539,29cyclictest0-21swapper/000:30:160
14321997537,23cyclictest0-21swapper/019:40:240
14321997445,16cyclictest16962-21apt-get19:15:260
14321997439,22cyclictest0-21swapper/021:05:160
14321997437,23cyclictest0-21swapper/021:35:140
14321997344,14cyclictest20464-21apt-get19:25:160
14321997341,25cyclictest0-21swapper/023:10:130
14321997337,26cyclictest0-21swapper/022:30:210
14321997337,24cyclictest0-21swapper/023:55:160
14321997241,24cyclictest0-21swapper/020:25:150
14321997240,23cyclictest0-21swapper/019:50:130
14321997240,23cyclictest0-21swapper/019:50:130
14321997239,27cyclictest0-21swapper/020:35:140
14321997238,25cyclictest0-21swapper/023:05:130
14321997235,24cyclictest0-21swapper/023:30:140
14321997138,26cyclictest0-21swapper/023:15:150
14321997138,25cyclictest0-21swapper/020:05:180
14321997137,28cyclictest0-21swapper/022:50:110
14321997124,42cyclictest514-21snmpd22:40:140
120762710,5chrt514-21snmpd23:35:200
14321997043,13cyclictest20200-21apt-get20:55:140
14321997040,23cyclictest0-21swapper/023:00:150
14321997038,26cyclictest0-21swapper/019:55:160
14321997038,24cyclictest0-21swapper/021:45:140
14321997038,24cyclictest0-21swapper/021:40:160
14321996953,10cyclictest14-21ksoftirqd/000:05:270
14321996948,11cyclictest30164-21apt-get22:55:180
14321996945,15cyclictest26158-21runrttasks00:15:200
14321996944,13cyclictest4136-21apt-get20:10:140
14321996939,25cyclictest0-21swapper/022:15:240
14321996937,25cyclictest0-21swapper/022:25:170
14321996936,26cyclictest0-21swapper/022:05:140
14321996935,27cyclictest0-21swapper/020:30:180
14321996935,23cyclictest0-21swapper/022:00:130
14325996833,22cyclictest21407-21apt-get22:30:211
14321996844,11cyclictest25326-21diskmemload21:10:180
14321996843,15cyclictest27230-21runrttasks21:15:130
14321996838,23cyclictest0-21swapper/021:50:160
14321996838,23cyclictest0-21swapper/020:50:230
14321996838,23cyclictest0-21swapper/000:10:130
14321996838,22cyclictest0-21swapper/000:35:150
14321996838,22cyclictest0-21swapper/000:35:150
14321996837,23cyclictest0-21swapper/022:10:190
14321996835,25cyclictest0-21swapper/020:00:150
14321996834,28cyclictest0-21swapper/021:25:200
14321996813,48cyclictest0-21swapper/021:55:140
14325996735,16cyclictest9382-21apt-get20:25:151
14321996739,14cyclictest20882-21seq00:00:130
14321996738,22cyclictest0-21swapper/019:20:140
14321996737,21cyclictest0-21swapper/019:10:150
14321996725,33cyclictest14918-21ls20:40:210
14325996638,14cyclictest0-21swapper/123:45:141
14325996633,24cyclictest23699-21apt-get21:05:161
14325996630,25cyclictest19085-21apt-get23:55:161
14325996624,17cyclictest26-21ksoftirqd/121:25:001
1432199666,20cyclictest17919-21apt-get22:20:140
14321996638,22cyclictest0-21swapper/020:20:160
14321996637,15cyclictest0-21swapper/020:15:140
14321996635,26cyclictest0-21swapper/022:45:160
14321996631,25cyclictest514-21snmpd19:35:130
14321996620,41cyclictest24139-21timerwakeupswit22:35:400
14325996536,14cyclictest29531-21apt-get19:50:131
14325996536,14cyclictest29531-21apt-get19:50:131
14325996535,14cyclictest31924-21apt-get23:00:151
14325996530,26cyclictest29646-21apt-get00:25:151
14325996528,26cyclictest6528-21apt-get23:20:141
14321996524,33cyclictest0-21swapper/021:20:150
14325996437,14cyclictest26151-21apt-get00:15:201
14325996434,24cyclictest0-21swapper/119:15:261
14325996433,24cyclictest0-21swapper/121:00:211
14325996423,35cyclictest26-21ksoftirqd/122:37:441
14321996437,17cyclictest0-21swapper/023:50:180
14325996334,15cyclictest3028-21apt-get23:10:131
14325996332,15cyclictest5339-21apt-get21:45:141
14325996329,25cyclictest1787-21apt-get21:35:141
14325996328,25cyclictest26055-21apt-get19:40:241
14325996232,14cyclictest24947-21apt-get22:40:131
14325996231,24cyclictest0-21swapper/119:25:161
14325996227,22cyclictest603-21apt-get20:00:151
14321996232,15cyclictest32473-21apt-get21:30:170
14325996135,14cyclictest22202-21apt-get19:30:141
14325996134,13cyclictest27227-21apt-get21:15:131
14325996133,15cyclictest23940-21apt-get19:35:131
14325996132,22cyclictest0-21swapper/123:25:141
14325996132,14cyclictest7644-21apt-get20:20:161
14325996126,26cyclictest10009-21apt-get23:30:141
14325996120,27cyclictest0-21swapper/122:55:181
14321996135,15cyclictest0-21swapper/023:40:130
14325996036,18cyclictest26-21ksoftirqd/122:45:221
14325996033,14cyclictest18455-21apt-get20:50:231
14325996032,15cyclictest4769-21apt-get23:15:151
14325996031,15cyclictest3604-21apt-get21:40:161
14325996031,15cyclictest24408-21apt-get00:10:141
14325996030,16cyclictest2351-21apt-get20:05:181
14325996029,17cyclictest12318-21apt-get22:05:141
14325996026,24cyclictest10578-21apt-get22:00:131
14325995938,16cyclictest26-21ksoftirqd/123:54:421
14325995936,17cyclictest26-21ksoftirqd/122:24:021
14325995934,14cyclictest18726-21apt-get19:20:161
14325995934,14cyclictest14405-21apt-get19:10:151
14325995933,15cyclictest7082-21apt-get21:50:161
14325995931,14cyclictest14115-21apt-get22:10:191
14325995931,13cyclictest11125-21apt-get20:30:161
14325995922,25cyclictest25495-21apt-get21:10:171
14325995922,24cyclictest0-21swapper/120:45:161
14325995921,26cyclictest0-21swapper/120:10:141
14325995919,29cyclictest0-21swapper/100:30:151
14325995837,16cyclictest26-21ksoftirqd/100:08:411
14325995835,17cyclictest26-21ksoftirqd/121:27:191
14325995835,13cyclictest5876-21apt-get20:15:141
14325995834,18cyclictest26-21ksoftirqd/100:00:181
14325995833,18cyclictest26-21ksoftirqd/123:40:211
14325995832,13cyclictest16151-21apt-get22:15:241
14325995831,15cyclictest1298-21apt-get00:35:151
14325995831,15cyclictest1298-21apt-get00:35:151
14325995831,14cyclictest28420-21apt-get22:50:121
14325995831,13cyclictest0-21swapper/119:45:141
14325995830,15cyclictest31273-21apt-get19:55:161
14325995830,15cyclictest12858-21apt-get20:35:141
14325995736,16cyclictest26-21ksoftirqd/123:06:441
14325995734,17cyclictest26-21ksoftirqd/100:21:481
14325995726,16cyclictest20200-21apt-get20:55:171
14325995632,18cyclictest26-21ksoftirqd/121:55:231
14325995631,13cyclictest19659-21apt-get22:25:171
14325995631,13cyclictest11746-21apt-get23:35:141
1432599557,44cyclictest0-21swapper/121:31:391
14325995531,13cyclictest14683-21apt-get20:40:171
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*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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