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2026-07-23 - 08:24
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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 Thu Jul 23, 2026 00:46:13)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1720015997718,39cyclictest1872913-21munin-plugin-st23:55:013
1720015997637,19cyclictest0-21swapper/322:44:013
1720015997031,19cyclictest0-21swapper/319:58:213
1720017996967,1cyclictest0-21swapper/519:10:155
1720015996830,18cyclictest0-21swapper/319:31:413
1720015996829,19cyclictest0-21swapper/319:29:373
1720015996748,19cyclictest0-21swapper/321:39:353
1720015996546,19cyclictest0-21swapper/323:02:433
172001599590,40cyclictest1877073-21cat00:00:173
1720015995718,38cyclictest1816782-21aten2.4_rfpower22:05:133
172001599570,38cyclictest1850731-21taskset23:14:133
1720015995616,39cyclictest1762843-21sh20:25:213
172001599560,37cyclictest1767998-21cat20:35:173
172001599560,37cyclictest1767998-21cat20:35:173
1720015995517,19cyclictest1828069-21df22:25:133
172001599550,16cyclictest0-21swapper/322:15:153
1720015995416,19cyclictest1775877-21cstates20:50:173
1720015995414,20cyclictest0-21swapper/319:35:053
1720017995314,38cyclictest0-21swapper/523:40:175
1720015995314,39cyclictest0-21swapper/321:58:273
1720017995233,19cyclictest0-21swapper/523:00:175
1720015995214,19cyclictest0-21swapper/323:45:193
1720015995214,19cyclictest0-21swapper/320:46:513
1720015995214,19cyclictest0-21swapper/320:46:513
1720015995214,19cyclictest0-21swapper/319:41:013
172001599520,33cyclictest0-21swapper/323:34:353
1720016995112,38cyclictest0-21swapper/422:25:154
1720015995130,0cyclictest0-21swapper/320:19:263
1720015995031,19cyclictest0-21swapper/321:27:373
1720017994931,0cyclictest0-21swapper/521:40:175
1720016994910,19cyclictest0-21swapper/423:32:544
1720015994930,19cyclictest0-21swapper/323:41:453
1720015994930,19cyclictest0-21swapper/320:20:453
1720015994930,19cyclictest0-21swapper/320:13:573
1720015994930,19cyclictest0-21swapper/300:37:103
1720015994930,19cyclictest0-21swapper/300:22:093
1720015994829,19cyclictest0-21swapper/319:13:093
1720015994729,18cyclictest0-21swapper/300:13:513
1720015994728,19cyclictest0-21swapper/300:29:133
1720015994727,19cyclictest0-21swapper/323:26:373
172001399479,38cyclictest0-21swapper/120:10:161
1720016994627,19cyclictest61-21ksoftirqd/423:55:174
172001299468,19cyclictest0-21swapper/020:30:170
172001799458,18cyclictest0-21swapper/522:55:155
1720017994425,19cyclictest0-21swapper/521:45:165
172001299445,19cyclictest0-21swapper/023:55:160
172001799435,19cyclictest0-21swapper/523:20:175
172001799433,39cyclictest0-21swapper/523:30:175
1720013994325,18cyclictest0-21swapper/119:25:151
172001299434,39cyclictest0-21swapper/022:15:150
1720017994224,18cyclictest0-21swapper/521:20:165
172001299424,19cyclictest0-21swapper/023:50:160
172001399401,39cyclictest0-21swapper/123:10:161
172001299401,39cyclictest16-21ksoftirqd/000:05:180
172001299400,38cyclictest0-21swapper/020:00:160
1720015993936,3cyclictest1810714-21chrt21:54:533
172001599390,39cyclictest0-21swapper/323:19:553
172001599390,19cyclictest0-21swapper/322:57:073
1720014993920,19cyclictest0-21swapper/219:20:162
1720018993811,20cyclictest0-21swapper/620:15:166
172001799380,38cyclictest0-21swapper/519:20:155
172001599380,38cyclictest0-21swapper/323:21:193
172001599380,38cyclictest0-21swapper/322:38:553
172001599380,38cyclictest0-21swapper/322:21:113
172001599380,38cyclictest0-21swapper/321:31:053
172001599380,38cyclictest0-21swapper/321:05:513
172001599380,38cyclictest0-21swapper/300:17:513
172001599380,16cyclictest0-21swapper/322:45:153
172001599380,16cyclictest0-21swapper/319:50:193
172001399380,19cyclictest0-21swapper/122:00:161
1720012993819,19cyclictest0-21swapper/000:25:140
1720015993718,19cyclictest877-21mta-sts-daemon00:30:453
1720015993718,19cyclictest1838637-21ntpq22:50:213
172001599370,18cyclictest1725827-21acpi19:20:113
172001599370,16cyclictest0-21swapper/321:40:233
1720014993737,0cyclictest0-21swapper/220:42:452
1720014993737,0cyclictest0-21swapper/220:42:452
172001299370,17cyclictest0-21swapper/020:25:170
1720018993612,19cyclictest0-21swapper/620:20:146
1720015993617,19cyclictest1880261-21/usr/sbin/munin00:05:253
1720015993616,19cyclictest0-21swapper/322:35:013
1720015993614,22cyclictest0-21swapper/321:45:233
1720014993636,0cyclictest0-21swapper/220:52:292
172001299360,35cyclictest0-21swapper/019:15:160
172001299360,17cyclictest0-21swapper/020:50:190
1720019993535,0cyclictest1363726-21kworker/7:1+events23:52:277
1720018993511,19cyclictest0-21swapper/620:55:166
1720018993510,20cyclictest0-21swapper/620:45:136
1720018993510,20cyclictest0-21swapper/620:45:136
172001699350,15cyclictest0-21swapper/419:10:164
172001599352,33cyclictest0-21swapper/321:19:313
1720015993516,19cyclictest0-21swapper/320:35:013
172001599351,0cyclictest875-21mta-sts-daemon21:04:523
172001599350,16cyclictest0-21swapper/300:00:013
1720014993535,0cyclictest0-21swapper/222:53:012
1720014993535,0cyclictest0-21swapper/200:37:012
172001399350,35cyclictest0-21swapper/119:45:171
172001299350,35cyclictest0-21swapper/022:45:160
172001299350,15cyclictest0-21swapper/021:30:170
1720019993434,0cyclictest1363726-21kworker/7:1+events19:59:477
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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