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2022-12-09 - 17:14

x86 Intel N455 @1660 MHz, Linux 5.15.49-rt47 (Profile)

Latency plot of system in rack #3, slot #6
Data to construct the above plot have been generated using the RT test utility cyclictest.
Unexpectedly long latencies may be caused by SMIs
Command line: cyclictest -l100000000 -m -Sp99 -i200 -h400 -q
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 rack3slot6 (updated Fri Dec 09, 2022 12:45:07)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
202349912391,19cyclictest14-21ksoftirqd/007:45:190
202399912087,22cyclictest26-21ksoftirqd/109:10:121
202349911885,19cyclictest14-21ksoftirqd/009:35:150
202349911787,16cyclictest14-21ksoftirqd/012:15:220
202399911680,26cyclictest26-21ksoftirqd/111:40:141
202349911688,17cyclictest14-21ksoftirqd/011:35:180
202399911468,34cyclictest26-21ksoftirqd/109:25:141
202349911388,14cyclictest14-21ksoftirqd/011:15:200
202349911388,14cyclictest14-21ksoftirqd/011:15:190
202349911384,16cyclictest14-21ksoftirqd/009:05:150
202349911011,87cyclictest0-21swapper/007:15:160
202349910880,19cyclictest14-21ksoftirqd/012:30:150
202349910877,18cyclictest14-21ksoftirqd/008:35:190
202399910641,51cyclictest26-21ksoftirqd/107:15:181
202399910441,47cyclictest26-21ksoftirqd/108:20:151
202399910413,69cyclictest0-21swapper/111:00:211
202399910213,69cyclictest0-21swapper/108:00:231
202349910212,75cyclictest0-21swapper/007:40:140
202399910012,67cyclictest0-21swapper/108:50:191
20239999912,67cyclictest0-21swapper/111:05:161
20239999912,65cyclictest0-21swapper/112:00:151
20239999911,64cyclictest0-21swapper/109:55:151
20239999849,31cyclictest26-21ksoftirqd/110:40:161
20239999846,33cyclictest26-21ksoftirqd/111:25:141
20234999868,19cyclictest14-21ksoftirqd/011:25:160
20234999858,30cyclictest14-21ksoftirqd/009:00:160
20239999712,66cyclictest0-21swapper/109:20:161
20239999539,44cyclictest22399-21runrttasks12:05:241
20239999512,62cyclictest0-21swapper/111:15:181
20239999512,62cyclictest0-21swapper/111:15:171
20239999512,61cyclictest0-21swapper/107:45:201
20234999568,18cyclictest14-21ksoftirqd/011:45:170
20239999416,58cyclictest0-21swapper/112:30:141
20239999411,64cyclictest0-21swapper/111:20:191
1972429420,27sleep00-21swapper/007:06:310
2023999939,64cyclictest0-21swapper/111:35:161
1878829326,54sleep10-21swapper/107:05:191
2023999926,54cyclictest20923-21taskset10:25:141
20239999238,37cyclictest0-21swapper/107:55:121
20239999211,59cyclictest0-21swapper/110:45:181
2023499927,75cyclictest508-21snmpd08:30:120
2023999919,60cyclictest0-21swapper/112:35:181
2023999919,60cyclictest0-21swapper/112:35:171
20234999052,25cyclictest14-21ksoftirqd/010:30:170
20239998937,35cyclictest0-21swapper/108:40:151
20239998937,35cyclictest0-21swapper/108:40:151
20239998913,53cyclictest0-21swapper/107:35:131
20239998833,34cyclictest0-21swapper/110:10:151
20234998813,63cyclictest0-21swapper/010:40:150
20239998711,54cyclictest0-21swapper/109:40:171
20234998749,24cyclictest14-21ksoftirqd/009:50:160
20234998715,59cyclictest0-21swapper/009:40:150
2023999869,59cyclictest0-21swapper/110:20:181
20234998649,24cyclictest14-21ksoftirqd/010:35:160
20234998617,59cyclictest0-21swapper/007:10:170
20234998614,62cyclictest0-21swapper/007:55:150
20234998614,59cyclictest0-21swapper/011:10:200
20234998613,60cyclictest0-21swapper/012:20:170
20234998613,60cyclictest0-21swapper/012:20:170
20234998611,60cyclictest28969-21taskset07:35:130
20234998610,60cyclictest1905-21runrttasks07:50:130
20234998534,40cyclictest14-21ksoftirqd/012:00:130
20234998514,61cyclictest0-21swapper/011:00:230
20234998514,60cyclictest0-21swapper/010:15:170
20234998513,60cyclictest0-21swapper/008:25:170
20234998512,64cyclictest0-21swapper/010:00:180
20234998511,63cyclictest0-21swapper/009:20:170
20234998510,62cyclictest0-21swapper/007:20:160
20239998439,29cyclictest0-21swapper/108:45:151
20239998429,34cyclictest0-21swapper/110:50:151
20234998413,61cyclictest0-21swapper/008:05:130
20234998412,62cyclictest0-21swapper/010:55:230
20234998412,61cyclictest0-21swapper/012:10:190
20239998332,29cyclictest0-21swapper/108:25:141
2023499838,63cyclictest8744-21apt-get08:10:140
20234998315,58cyclictest0-21swapper/008:40:120
20234998315,58cyclictest0-21swapper/008:40:120
20234998314,59cyclictest0-21swapper/012:25:160
20234998313,60cyclictest0-21swapper/011:50:140
20234998313,58cyclictest0-21swapper/012:05:250
20239998235,28cyclictest0-21swapper/111:30:161
20239998233,30cyclictest26-21ksoftirqd/112:10:181
2023499829,61cyclictest13687-21apt-get11:40:150
2023499828,61cyclictest550-21runrttasks10:50:180
20234998218,55cyclictest0-21swapper/010:45:190
20234998215,55cyclictest0-21swapper/009:25:130
20234998213,57cyclictest0-21swapper/008:55:120
20234998213,57cyclictest0-21swapper/008:55:120
20239998127,37cyclictest2583-21sshd09:30:181
20234998114,57cyclictest0-21swapper/009:15:160
20234998114,57cyclictest0-21swapper/009:15:160
20234998113,58cyclictest0-21swapper/008:00:260
20234998112,57cyclictest0-21swapper/010:10:160
20234998111,59cyclictest0-21swapper/007:25:200
20239998010,47cyclictest0-21swapper/107:30:151
2023499807,61cyclictest12023-21apt-get08:20:160
20234998015,54cyclictest0-21swapper/008:50:170
20234998012,57cyclictest0-21swapper/010:20:190
20239997930,30cyclictest0-21swapper/107:40:171
2023499797,60cyclictest20918-21apt-get10:25:160
2023499795,10cyclictest0-21swapper/011:55:280
20234997923,50cyclictest798-21seq12:35:360
20234997923,50cyclictest798-21seq12:35:360
2023499788,59cyclictest1877-21apt-get11:05:160
2023499779,57cyclictest20250-21apt-get08:45:170
2023499777,61cyclictest10351-21apt-get11:30:140
20234997713,53cyclictest0-21swapper/009:55:150
20239997628,28cyclictest26-21ksoftirqd/109:15:181
20239997628,28cyclictest26-21ksoftirqd/109:15:181
20239997613,41cyclictest26-21ksoftirqd/111:10:191
2023499769,58cyclictest14324-21apt-get10:05:190
2023499768,60cyclictest28457-21apt-get09:10:120
20234997620,49cyclictest260-21systemd-journal09:48:380
20234997613,51cyclictest0-21swapper/011:20:170
2023999759,39cyclictest7540-21sshd09:45:191
2023499757,57cyclictest2577-21apt-get09:30:180
2023999747,47cyclictest0-21swapper/108:15:171
20239997421,32cyclictest0-21swapper/109:00:141
20239997415,35cyclictest0-21swapper/112:15:211
20239997414,37cyclictest0-21swapper/110:00:161
2023499748,56cyclictest27341-21apt-get07:30:170
20239997326,27cyclictest0-21swapper/107:20:171
20239997222,32cyclictest0-21swapper/110:35:171
20239997220,29cyclictest0-21swapper/110:05:161
2023499727,55cyclictest10373-21apt-get08:15:190
2023999718,14cyclictest26-21ksoftirqd/109:54:591
20239997021,30cyclictest0-21swapper/108:05:131
20239996946,9cyclictest26-21ksoftirqd/108:57:201
20239996946,9cyclictest26-21ksoftirqd/108:57:201
20239996926,26cyclictest0-21swapper/107:25:221
20239996923,28cyclictest0-21swapper/110:15:191
20239996923,15cyclictest26-21ksoftirqd/111:55:051
20239996918,31cyclictest0-21swapper/112:25:171
20239996813,33cyclictest0-21swapper/108:35:181
20239996721,15cyclictest26-21ksoftirqd/111:50:011
20239996618,29cyclictest0-21swapper/109:05:161
20239996615,28cyclictest0-21swapper/108:10:161
20239996613,32cyclictest0-21swapper/112:20:151
20239996613,32cyclictest0-21swapper/112:20:141
2023999658,14cyclictest26-21ksoftirqd/111:55:001
2023999657,14cyclictest26-21ksoftirqd/111:00:011
2023999655,16cyclictest26-21ksoftirqd/107:15:001
2023999653,14cyclictest26-21ksoftirqd/110:35:001
20239996521,27cyclictest0-21swapper/109:35:171
20239996413,30cyclictest0-21swapper/107:50:121
20239996412,30cyclictest0-21swapper/108:30:141
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*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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