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2022-07-07 - 12:55

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 the 792 highest latencies:
System rack3slot6 (updated Thu Jul 07, 2022 00:45:01)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
100779913673,20cyclictest14-21ksoftirqd/020:30:130
100819912974,37cyclictest26-21ksoftirqd/122:10:121
100819912874,40cyclictest26-21ksoftirqd/100:30:121
100779912367,18cyclictest14-21ksoftirqd/020:50:130
10081991229,86cyclictest0-21swapper/121:25:121
100819912124,79cyclictest0-21swapper/122:05:111
10081991189,81cyclictest0-21swapper/123:15:111
10081991189,81cyclictest0-21swapper/123:15:101
10081991188,82cyclictest0-21swapper/120:50:111
100819911713,80cyclictest0-21swapper/120:20:111
100819911711,81cyclictest0-21swapper/100:00:161
100819911711,80cyclictest0-21swapper/119:45:131
100819911616,76cyclictest0-21swapper/123:20:131
100819911612,77cyclictest0-21swapper/119:50:141
10081991147,80cyclictest0-21swapper/123:30:121
100819911410,76cyclictest0-21swapper/122:25:131
100779911443,19cyclictest14-21ksoftirqd/021:20:140
100819911310,78cyclictest0-21swapper/121:40:111
10081991116,79cyclictest0-21swapper/121:15:111
100819911162,27cyclictest26-21ksoftirqd/120:45:121
10081991088,77cyclictest0-21swapper/122:55:141
10081991088,77cyclictest0-21swapper/122:55:141
10081991078,75cyclictest0-21swapper/123:10:101
100819910711,74cyclictest0-21swapper/122:15:161
100819910710,77cyclictest0-21swapper/120:35:241
10081991067,75cyclictest0-21swapper/120:10:251
100819910611,73cyclictest0-21swapper/122:00:101
9105210532,17sleep10-21swapper/119:05:261
10081991058,71cyclictest0-21swapper/100:35:111
100819910512,70cyclictest0-21swapper/122:45:141
10081991038,73cyclictest0-21swapper/119:25:111
100819910337,45cyclictest26-21ksoftirqd/123:55:111
100779910371,18cyclictest14-21ksoftirqd/023:50:120
10081991028,20cyclictest0-21swapper/100:25:121
10081991027,71cyclictest0-21swapper/121:05:161
10081991018,20cyclictest0-21swapper/119:20:171
10081991007,22cyclictest0-21swapper/119:10:121
100779910074,18cyclictest14-21ksoftirqd/022:15:200
100779910074,16cyclictest14-21ksoftirqd/020:10:200
100779910069,18cyclictest14-21ksoftirqd/023:30:120
1008199998,19cyclictest0-21swapper/100:10:131
10077999871,17cyclictest14-21ksoftirqd/020:55:120
10077999870,16cyclictest14-21ksoftirqd/021:55:100
10077999767,18cyclictest14-21ksoftirqd/021:40:130
1008199967,20cyclictest0-21swapper/123:00:121
1008199967,20cyclictest0-21swapper/123:00:111
10077999665,20cyclictest14-21ksoftirqd/022:55:140
10077999665,20cyclictest14-21ksoftirqd/022:55:130
1008199958,20cyclictest0-21swapper/122:40:221
1008199947,23cyclictest0-21swapper/120:15:141
10077999462,17cyclictest14-21ksoftirqd/000:05:150
1008199927,22cyclictest0-21swapper/123:45:121
1008199927,20cyclictest0-21swapper/100:20:101
1008199927,18cyclictest0-21swapper/123:35:121
1008199918,22cyclictest0-21swapper/119:55:221
1008199918,19cyclictest0-21swapper/123:50:131
1008199917,60cyclictest0-21swapper/123:05:121
1008199916,17cyclictest0-21swapper/121:30:121
1008199908,21cyclictest0-21swapper/122:50:121
1008199907,22cyclictest0-21swapper/120:40:121
1008199907,15cyclictest0-21swapper/121:10:101
1008199899,20cyclictest0-21swapper/121:50:111
1008199898,20cyclictest0-21swapper/122:30:101
1008199897,21cyclictest0-21swapper/100:15:151
1008199897,20cyclictest0-21swapper/119:30:151
1008199896,18cyclictest0-21swapper/121:45:121
1008199889,55cyclictest0-21swapper/119:40:121
1008199888,17cyclictest0-21swapper/120:25:111
1008199887,18cyclictest0-21swapper/122:20:111
10081998810,69cyclictest0-21swapper/119:35:121
1008199877,19cyclictest0-21swapper/120:00:241
1008199877,15cyclictest0-21swapper/123:40:111
1008199876,16cyclictest0-21swapper/121:00:141
1008199867,19cyclictest0-21swapper/122:35:141
10077998660,15cyclictest14-21ksoftirqd/021:30:140
1008199857,14cyclictest0-21swapper/120:05:151
1008199847,19cyclictest0-21swapper/119:15:121
1008199847,18cyclictest0-21swapper/121:55:141
847828229,41sleep00-21swapper/019:05:050
1008199827,54cyclictest0-21swapper/120:55:131
1008199827,19cyclictest0-21swapper/123:25:131
1008199827,16cyclictest0-21swapper/121:35:121
1008199827,16cyclictest0-21swapper/100:05:131
10077998151,18cyclictest14-21ksoftirqd/022:30:110
10077998134,39cyclictest7010-21sshd20:35:130
1008199808,16cyclictest5117-21apt-get20:30:121
10077998014,52cyclictest0-21swapper/000:25:120
1008199756,15cyclictest21719-21apt-get21:20:141
10077997547,17cyclictest12268-21apt-get19:15:150
10077997040,21cyclictest14-21ksoftirqd/019:49:590
1007799699,51cyclictest504-21snmpd20:15:150
10077996940,23cyclictest14-21ksoftirqd/021:35:120
10077996937,26cyclictest8335-21ntp_states23:55:290
10077996835,21cyclictest0-21swapper/019:35:110
10077996828,35cyclictest14-21ksoftirqd/021:53:000
10077996825,33cyclictest14-21ksoftirqd/000:15:110
10077996738,22cyclictest14-21ksoftirqd/020:05:310
10077996737,22cyclictest14941-21grep19:20:390
1007799668,46cyclictest15922-21apt-get00:20:130
10077996635,25cyclictest504-21snmpd19:25:590
10077996631,30cyclictest14-21ksoftirqd/022:05:220
10077996628,30cyclictest14-21ksoftirqd/023:20:020
10077996628,30cyclictest14-21ksoftirqd/023:20:010
10077996621,35cyclictest14-21ksoftirqd/022:40:240
1007799656,19cyclictest14-21ksoftirqd/000:30:120
10077996541,16cyclictest5603-21apt-get22:10:150
10077996532,21cyclictest0-21swapper/021:00:120
10077996517,39cyclictest14-21ksoftirqd/019:50:140
10077996434,22cyclictest14-21ksoftirqd/020:45:230
10077996425,31cyclictest14-21ksoftirqd/021:45:110
10077996419,34cyclictest14-21ksoftirqd/022:00:140
10077996335,21cyclictest239-21systemd-journal22:40:000
10077996326,30cyclictest14-21ksoftirqd/023:10:120
10077996323,34cyclictest239-21systemd-journal21:26:220
10077996319,20cyclictest151rcu_preempt23:45:140
1007799625,52cyclictest0-21swapper/020:41:130
10077996231,23cyclictest450-21dbus-daemon22:30:010
10077996218,35cyclictest14-21ksoftirqd/019:40:130
10077996137,9cyclictest14-21ksoftirqd/022:50:230
10077996122,28cyclictest0-21swapper/022:20:130
10077996120,35cyclictest239-21systemd-journal23:36:500
1007799606,48cyclictest0-21swapper/000:00:210
10077996037,18cyclictest14-21ksoftirqd/023:00:270
10077996037,18cyclictest14-21ksoftirqd/023:00:260
10077996032,22cyclictest14-21ksoftirqd/019:34:540
10077996010,19cyclictest151rcu_preempt00:10:130
1007799596,47cyclictest0-21swapper/023:20:230
1007799596,17cyclictest27496-21apt-get20:00:220
10077995942,10cyclictest14-21ksoftirqd/021:05:370
10077995942,10cyclictest14-21ksoftirqd/019:55:390
10077995941,10cyclictest14-21ksoftirqd/021:10:220
10077995941,10cyclictest14-21ksoftirqd/020:25:270
10077995939,12cyclictest14-21ksoftirqd/023:40:360
10077995936,18cyclictest14-21ksoftirqd/020:20:330
10077995935,9cyclictest14-21ksoftirqd/023:30:020
10077995915,37cyclictest0-21swapper/000:36:290
10077995829,21cyclictest239-21systemd-journal22:45:250
10077995740,10cyclictest14-21ksoftirqd/023:10:020
10077995732,19cyclictest14-21ksoftirqd/019:10:350
10077995639,10cyclictest14-21ksoftirqd/021:15:150
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*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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