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2026-04-05 - 02:03
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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 100 highest latencies:
System rackfslot7.osadl.org (updated Sat Apr 04, 2026 12:46:10)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
129746997920,0cyclictest0-21swapper/409:44:514
129746997413,60cyclictest289709-21awk11:55:204
129746997233,39cyclictest0-21swapper/409:32:204
129746997133,38cyclictest0-21swapper/410:27:444
129746996831,18cyclictest601ktimers/408:31:304
129746996829,0cyclictest0-21swapper/409:03:404
129746996829,0cyclictest0-21swapper/409:03:404
129746996828,19cyclictest236199-21snmpd12:07:084
12974699679,39cyclictest307058-21apt12:30:004
12974699676,21cyclictest203337-21cstates09:20:124
129746996627,0cyclictest0-21swapper/408:51:164
129746996525,19cyclictest1990282chrt09:11:464
129746996324,0cyclictest0-21swapper/407:25:124
129746996323,19cyclictest0-21swapper/411:25:154
129746996243,0cyclictest0-21swapper/412:38:354
129746996223,39cyclictest0-21swapper/410:21:124
129746996223,19cyclictest0-21swapper/410:07:434
12973799623,19cyclictest0-21swapper/107:10:161
129746996123,0cyclictest0-21swapper/409:35:164
129746996121,19cyclictest0-21swapper/408:05:054
12974699602,39cyclictest775-21avahi-daemon10:50:184
12974699602,39cyclictest224999-21grep10:00:024
12974699602,39cyclictest150563-21sed07:45:184
129746996022,19cyclictest265937-21munin-run11:15:024
129746996022,18cyclictest0-21swapper/407:36:164
129746996022,0cyclictest0-21swapper/408:10:164
129746996021,0cyclictest0-21swapper/411:04:164
129746996021,0cyclictest0-21swapper/410:34:074
129746996020,19cyclictest0-21swapper/408:00:444
129746996020,0cyclictest0-21swapper/408:19:194
129746996019,40cyclictest0-21swapper/408:26:524
129746995921,18cyclictest0-21swapper/411:51:444
129746995920,19cyclictest0-21swapper/412:04:434
129746995919,39cyclictest0-21swapper/411:35:524
129746995919,39cyclictest0-21swapper/407:32:434
129746995919,19cyclictest0-21swapper/411:19:464
129746995919,19cyclictest0-21swapper/410:45:104
129746995919,19cyclictest0-21swapper/408:42:084
129746995819,39cyclictest0-21swapper/411:24:084
129746995819,1cyclictest134076-21ntpq07:15:204
129746995819,19cyclictest0-21swapper/411:43:044
129746995819,19cyclictest0-21swapper/409:49:244
129746995819,19cyclictest0-21swapper/407:43:044
129746995819,19cyclictest0-21swapper/407:21:164
129746995819,18cyclictest0-21swapper/409:51:104
129746995819,18cyclictest0-21swapper/409:05:384
129746995819,18cyclictest0-21swapper/409:05:384
129746995819,18cyclictest0-21swapper/408:58:424
129746995819,0cyclictest0-21swapper/409:19:194
129746995819,0cyclictest0-21swapper/408:48:004
129746995819,0cyclictest0-21swapper/407:12:324
129746995719,18cyclictest0-21swapper/410:57:564
129746995618,19cyclictest274577-21cstates11:30:124
129746995319,34cyclictest0-21swapper/410:18:524
129746995319,15cyclictest0-21swapper/410:11:324
129746995314,39cyclictest0-21swapper/407:54:264
129733995314,19cyclictest0-21swapper/008:05:160
129746995233,19cyclictest0-21swapper/412:16:164
129746995233,19cyclictest0-21swapper/412:13:484
129746995218,34cyclictest0-21swapper/411:06:444
129746995218,34cyclictest0-21swapper/410:35:524
129746995218,34cyclictest0-21swapper/408:22:244
129746995214,19cyclictest0-21swapper/410:45:024
129746995213,39cyclictest0-21swapper/410:01:404
129746995213,39cyclictest0-21swapper/409:28:304
129746995213,39cyclictest0-21swapper/407:56:224
129762995133,18cyclictest0-21swapper/712:05:167
129746995133,18cyclictest0-21swapper/412:31:124
129746995133,18cyclictest0-21swapper/411:49:044
129746995133,18cyclictest0-21swapper/408:36:044
129742995113,19cyclictest0-21swapper/310:40:153
129742995112,39cyclictest0-21swapper/312:15:163
129733995113,19cyclictest0-21swapper/012:25:160
129753995012,19cyclictest0-21swapper/511:45:145
129746994910,19cyclictest0-21swapper/412:21:084
129753994830,18cyclictest0-21swapper/511:55:145
129742994829,19cyclictest362-21jbd2/sda2-810:45:463
12976299479,19cyclictest0-21swapper/707:30:157
12975899479,19cyclictest0-21swapper/610:05:176
12975899479,19cyclictest0-21swapper/608:45:156
12974299478,39cyclictest0-21swapper/310:27:463
129733994728,19cyclictest0-21swapper/010:30:150
12974299469,18cyclictest0-21swapper/308:05:163
12974299467,39cyclictest0-21swapper/309:45:143
12975399457,19cyclictest0-21swapper/507:10:165
12976299435,19cyclictest0-21swapper/708:10:167
12974299435,19cyclictest0-21swapper/308:35:163
12974299434,39cyclictest0-21swapper/310:15:453
12973799435,19cyclictest0-21swapper/107:50:171
12976299424,38cyclictest0-21swapper/710:15:157
12973799402,19cyclictest0-21swapper/111:50:161
12973799402,19cyclictest0-21swapper/110:45:161
12973799391,19cyclictest0-21swapper/108:45:161
12974299370,37cyclictest0-21swapper/308:00:173
12974299370,18cyclictest0-21swapper/308:25:153
12975899360,36cyclictest0-21swapper/608:50:176
129742993618,18cyclictest0-21swapper/310:30:153
129741993617,18cyclictest129731-21cyclictest12:35:152
12974199360,16cyclictest0-21swapper/207:45:172
12973799360,35cyclictest0-21swapper/112:10:141
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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