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2026-06-05 - 15:53
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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 Fri Jun 05, 2026 12:46:22)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
18772749911113,79cyclictest1946190-21/usr/sbin/munin09:15:154
1877274999517,59cyclictest784-21smartd10:45:434
1877274997536,39cyclictest786-21systemd-logind07:55:014
1877274997536,39cyclictest786-21systemd-logind07:55:014
1877274997517,39cyclictest1086-21runrttasks07:49:064
1877274997335,38cyclictest877-21mta-sts-daemon08:48:534
1877274997012,39cyclictest1-21systemd08:00:014
1877274996911,39cyclictest2035389-21memory11:55:174
1877274996911,39cyclictest2035389-21memory11:55:164
1877274996810,39cyclictest1967840-21latency_hist09:55:004
1877274996526,39cyclictest1971937-21/usr/sbin/munin10:00:174
187727499624,39cyclictest2049935-21users12:20:224
1877274996124,19cyclictest591rcuc/408:10:114
187727499611,40cyclictest2004064-21kworker/u32:1+events_unbound11:28:594
1877274995819,39cyclictest1986835-21chrt10:28:284
187727499580,39cyclictest1938002-21kworker/u32:5+flush-8:009:23:394
1877274995738,0cyclictest0-21swapper/408:30:104
1877274995737,19cyclictest1936309-21memory08:55:164
1877274995719,38cyclictest0-21swapper/410:44:234
1877274995718,39cyclictest1975056-21ntpq10:05:214
187727499570,38cyclictest2006795-21/usr/sbin/munin11:05:234
187727499570,19cyclictest0-21swapper/408:26:154
187727499560,56cyclictest0-21swapper/409:29:114
187727499560,37cyclictest1877286-21unin-run07:10:014
1877274995537,18cyclictest236199-21snmpd12:17:134
1877274995516,20cyclictest2005680-21timerandwakeup11:00:224
187727499550,15cyclictest0-21swapper/412:05:134
187727499550,15cyclictest0-21swapper/412:05:124
1877274995416,38cyclictest0-21swapper/411:12:104
1877274995415,39cyclictest877-21mta-sts-daemon07:34:474
1877277995319,15cyclictest0-21swapper/710:00:167
1877274995319,15cyclictest0-21swapper/411:31:154
1877274995319,15cyclictest0-21swapper/410:11:514
1877274995314,39cyclictest0-21swapper/409:47:234
1877274995313,40cyclictest1939857-21unixbench_multi09:00:214
1877274995233,19cyclictest0-21swapper/410:59:434
1877274995233,19cyclictest0-21swapper/408:37:474
1877274995213,39cyclictest0-21swapper/411:47:274
1877274995213,39cyclictest0-21swapper/411:37:474
1877274995213,39cyclictest0-21swapper/408:15:194
1877274995213,39cyclictest0-21swapper/407:41:574
1877274995213,39cyclictest0-21swapper/407:41:564
1877274995213,39cyclictest0-21swapper/407:20:174
1877274995213,39cyclictest0-21swapper/407:13:054
1877274995213,19cyclictest0-21swapper/408:21:014
1877271995214,19cyclictest321rcuc/111:00:151
1877275995114,18cyclictest0-21swapper/511:50:155
1877275995114,18cyclictest0-21swapper/511:50:145
1877274995133,18cyclictest0-21swapper/411:22:594
1877274995133,18cyclictest0-21swapper/411:16:414
1877274995133,18cyclictest0-21swapper/409:58:034
1877274995133,18cyclictest0-21swapper/409:10:474
1877274995133,18cyclictest0-21swapper/407:38:354
1877274995133,18cyclictest0-21swapper/407:38:344
1877274995132,19cyclictest0-21swapper/409:07:344
1877274995114,18cyclictest1959521-21munin-run09:40:014
1877274995113,19cyclictest0-21swapper/412:31:334
1877270995112,38cyclictest0-21swapper/010:40:140
1877274995032,18cyclictest0-21swapper/412:39:274
1877274995032,18cyclictest0-21swapper/411:50:194
1877274995032,18cyclictest0-21swapper/411:50:184
1877274995032,18cyclictest0-21swapper/410:15:064
1877274995032,18cyclictest0-21swapper/408:09:484
1877274995031,19cyclictest0-21swapper/412:04:234
1877274995031,19cyclictest0-21swapper/412:04:234
1877274995031,19cyclictest0-21swapper/408:51:034
1877274995013,18cyclictest1987918-21diskstats10:30:134
1877274995012,38cyclictest0-21swapper/407:25:194
1877274995011,19cyclictest0-21swapper/407:16:354
1877270995010,19cyclictest0-21swapper/012:20:140
1877274994931,18cyclictest0-21swapper/411:44:594
1877274994930,19cyclictest0-21swapper/412:27:434
1877274994930,19cyclictest0-21swapper/409:41:304
1877274994910,39cyclictest0-21swapper/412:12:004
1877274994910,20cyclictest1991386-21ntpq10:35:214
1877273994910,39cyclictest0-21swapper/308:10:143
1877270994911,19cyclictest0-21swapper/009:05:160
1877275994829,19cyclictest0-21swapper/511:30:165
1877273994829,19cyclictest0-21swapper/310:40:143
1877270994829,19cyclictest0-21swapper/011:15:150
187727699479,19cyclictest0-21swapper/609:30:146
1877274994728,19cyclictest0-21swapper/409:30:064
187727099478,19cyclictest0-21swapper/008:50:150
187727699468,38cyclictest0-21swapper/611:55:156
187727699468,38cyclictest0-21swapper/611:55:146
187727599468,19cyclictest0-21swapper/512:25:155
1877272994627,19cyclictest0-21swapper/211:00:162
187727199467,0cyclictest0-21swapper/111:20:171
1877274994425,19cyclictest0-21swapper/408:43:394
187727099445,38cyclictest0-21swapper/010:55:160
187727699435,19cyclictest0-21swapper/608:05:176
187727599434,39cyclictest0-21swapper/509:20:155
187727399434,39cyclictest0-21swapper/307:10:163
187727099430,19cyclictest0-21swapper/011:10:150
187727599423,39cyclictest0-21swapper/512:30:145
187727499423,39cyclictest591rcuc/408:00:234
1877274994223,19cyclictest0-21swapper/410:22:394
187727399424,19cyclictest0-21swapper/311:05:153
1877273994241,1cyclictest191rcu_preempt08:05:173
187727299422,0cyclictest191rcu_preempt08:55:152
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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