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2025-07-02 - 03:22
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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
Characteristics of the 100 highest latencies:
System rackdslot3.osadl.org (updated Tue Jul 01, 2025 12:45:38)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
137191229167,50phc2sys0-21swapper/307:07:073
84142220153,22sleep00-21swapper/007:09:460
81642203169,23sleep10-21swapper/107:06:391
81452202169,22sleep20-21swapper/207:06:222
1832621680,5sleep2872799cyclictest07:30:022
84342164125,13sleep20-21swapper/207:10:002
137191134109,14phc2sys0-21swapper/307:10:003
234312720,5sleep1872699cyclictest07:40:151
8728996610,16cyclictest0-21swapper/309:55:243
8728996411,11cyclictest17169-21grep11:55:243
136991640,1ptp4l391rcuc/309:43:023
8728996312,17cyclictest29034-21irqrtprio07:50:223
8728996212,17cyclictest21642-21irqrtprio09:50:183
8728996212,16cyclictest2647-21cat12:35:003
8728996010,16cyclictest0-21swapper/311:50:253
8728995913,7cyclictest10788-21ps08:20:213
8728995913,16cyclictest23481-21if_enp4s012:10:183
8728995913,16cyclictest22759-21sshd07:37:483
8728995912,10cyclictest20119-21taskset12:03:083
872899587,10cyclictest0-21swapper/308:55:013
8728995812,7cyclictest20818-21grep10:55:273
8728995712,8cyclictest23214-21apt-get07:40:133
8728995513,15cyclictest2664-21/usr/sbin/munin10:20:263
8728995512,11cyclictest8376-21chrt09:24:203
8728995511,9cyclictest15880-21apt-get07:25:143
8728995211,7cyclictest5210-21ls11:30:273
8728995112,8cyclictest17825-21awk08:35:183
8728995110,14cyclictest8724-21cyclictest10:35:143
8728995011,8cyclictest29762-21ps09:00:203
8728995010,8cyclictest19121-21ps07:30:203
8728994911,7cyclictest8836-21ls08:15:233
872699492,44cyclictest3386-21idleruntime-cro11:30:011
304692490,2sleep00-21swapper/012:25:140
8728994810,15cyclictest0-21swapper/310:16:233
8728994712,11cyclictest31935-21sed10:10:273
292222470,2sleep10-21swapper/109:00:151
8728994614,14cyclictest18909-21/usr/sbin/munin09:45:183
872899461,17cyclictest0-21swapper/308:10:183
8726994617,27cyclictest0-21swapper/109:22:261
8728994511,15cyclictest27895-21runrttasks11:10:243
8726994527,16cyclictest25-21ksoftirqd/112:19:591
8728994410,8cyclictest2512-21ps11:25:243
8727994439,3cyclictest33-21ksoftirqd/211:45:002
872899429,9cyclictest25241-21/usr/sbin/munin12:15:263
8728994211,13cyclictest28515-21ps12:20:203
136991420,0ptp4l401ktimersoftd/310:30:263
136991420,0ptp4l401ktimersoftd/308:25:403
8728994113,13cyclictest31987-21hddtemp_smartct09:05:153
8728994010,7cyclictest23741-21apt-config11:03:523
8727994035,3cyclictest33-21ksoftirqd/210:30:002
8727994035,3cyclictest33-21ksoftirqd/210:10:002
8727994034,3cyclictest33-21ksoftirqd/212:39:592
8728993910,16cyclictest0-21swapper/311:15:113
872899390,7cyclictest3858-21memory12:35:213
8726993932,4cyclictest12250-21cron08:25:001
872899388,17cyclictest0-21swapper/311:20:133
8728993813,16cyclictest8615-21date11:39:593
8728993812,11cyclictest28224-21ssh08:55:283
8728993810,16cyclictest1450-21apt-get09:10:133
8727993832,3cyclictest33-21ksoftirqd/210:05:002
236962380,1sleep20-21swapper/212:10:182
136991380,32ptp4l41-21ksoftirqd/311:45:133
119492380,3sleep1241ktimersoftd/110:40:001
8727993732,3cyclictest33-21ksoftirqd/207:40:002
8726993730,5cyclictest25-21ksoftirqd/112:39:471
8727993631,3cyclictest33-21ksoftirqd/211:25:012
8727993630,4cyclictest33-21ksoftirqd/208:52:302
136991360,0ptp4l401ktimersoftd/309:34:543
872899358,15cyclictest0-21swapper/308:45:233
8728993529,4cyclictest41-21ksoftirqd/309:38:283
8728993511,7cyclictest14270-21taskset10:44:133
8727993530,3cyclictest33-21ksoftirqd/211:59:042
8727993530,3cyclictest33-21ksoftirqd/211:35:002
8727993530,2cyclictest33-21ksoftirqd/210:55:152
8727993529,4cyclictest33-21ksoftirqd/209:23:262
8727993526,7cyclictest33-21ksoftirqd/209:25:252
8726993529,4cyclictest25-21ksoftirqd/108:49:151
8726993529,4cyclictest25-21ksoftirqd/107:10:461
8728993428,4cyclictest41-21ksoftirqd/311:08:303
8728993413,8cyclictest12532-21mailstats07:15:263
8728993412,9cyclictest1285-21snmpd10:07:573
8727993430,3cyclictest33-21ksoftirqd/208:30:012
8727993429,3cyclictest33-21ksoftirqd/210:40:152
8727993429,3cyclictest33-21ksoftirqd/209:50:002
8727993429,3cyclictest33-21ksoftirqd/209:10:272
8727993429,3cyclictest33-21ksoftirqd/207:50:332
8727993429,3cyclictest33-21ksoftirqd/207:40:202
8727993428,4cyclictest33-21ksoftirqd/210:33:072
8727993428,4cyclictest33-21ksoftirqd/208:49:242
8727993427,4cyclictest33-21ksoftirqd/212:15:092
8727993422,10cyclictest33-21ksoftirqd/211:50:202
8726993428,4cyclictest25-21ksoftirqd/111:18:141
8726993428,4cyclictest25-21ksoftirqd/109:14:471
8726993427,5cyclictest25-21ksoftirqd/108:34:511
8725993427,5cyclictest9-21ksoftirqd/011:00:330
8728993327,4cyclictest41-21ksoftirqd/308:31:163
8728993312,9cyclictest0-21swapper/308:05:273
8727993328,3cyclictest33-21ksoftirqd/212:34:322
8727993328,3cyclictest33-21ksoftirqd/212:00:202
8727993328,3cyclictest33-21ksoftirqd/211:45:202
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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