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2026-06-13 - 00:06
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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 12, 2026 12:46:09)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1435244998584,1cyclictest0-21swapper/008:05:170
1435248997957,21cyclictest1525076-21lpstat09:50:204
143524899790,79cyclictest0-21swapper/408:05:184
1435248997619,18cyclictest0-21swapper/412:12:574
1435248997616,59cyclictest1557129-21telnet10:50:124
1435248997516,39cyclictest1523479-21chrt09:48:444
1435248997335,19cyclictest1535429-21expr10:10:124
1435248997232,39cyclictest1499457-21/usr/sbin/munin09:05:164
1435248997214,0cyclictest0-21swapper/412:26:064
1435248997214,0cyclictest0-21swapper/412:10:014
1435248997113,39cyclictest1608141-21ntpq12:20:194
1435248997011,19cyclictest0-21swapper/411:40:504
1435248997011,19cyclictest0-21swapper/409:02:304
1435248997011,19cyclictest0-21swapper/408:13:504
1435248996968,0cyclictest1479424-21cat08:30:024
1435248996911,19cyclictest0-21swapper/409:31:034
143524899688,59cyclictest1539165-21python310:15:224
1435248996829,38cyclictest0-21swapper/411:04:484
1435248996810,0cyclictest0-21swapper/410:21:424
1435248996810,0cyclictest0-21swapper/409:29:504
1435248996728,39cyclictest0-21swapper/411:24:164
143524899668,39cyclictest1561139-21ld10:55:214
1435248996627,0cyclictest0-21swapper/409:15:024
1435248996121,19cyclictest873-21mta-sts-daemon12:36:254
1435248995919,19cyclictest0-21swapper/410:44:544
1435248995819,18cyclictest1481559-21kworker/u32:4+flush-8:009:20:064
1435248995819,0cyclictest0-21swapper/412:32:254
143524899580,19cyclictest0-21swapper/409:19:504
1435248995719,38cyclictest0-21swapper/407:43:064
1435248995718,38cyclictest0-21swapper/411:11:264
1435251995618,38cyclictest88-21ksoftirqd/710:10:147
1435248995619,37cyclictest0-21swapper/411:09:264
1435248995619,36cyclictest0-21swapper/410:08:464
1435248995618,38cyclictest0-21swapper/411:50:374
1435248995617,18cyclictest1480051-21diskstats08:30:144
1435248995616,19cyclictest876-21mta-sts-daemon08:37:304
1435248995616,19cyclictest1446429-21munin-run07:30:024
1435248995615,39cyclictest1572131-21ntpq11:15:184
1435248995615,19cyclictest236199-21snmpd07:58:304
1435248995519,36cyclictest0-21swapper/409:58:154
1435248995515,39cyclictest0-21swapper/408:00:164
1435248995514,19cyclictest0-21swapper/408:20:354
1435248995514,0cyclictest0-21swapper/407:23:064
1435244995537,18cyclictest0-21swapper/008:20:160
1435248995415,0cyclictest0-21swapper/410:01:184
1435248995415,0cyclictest0-21swapper/407:47:114
1435248995414,40cyclictest0-21swapper/410:35:064
1435248995414,39cyclictest0-21swapper/411:35:104
1435248995414,19cyclictest0-21swapper/412:15:584
1435248995414,19cyclictest0-21swapper/412:03:294
1435248995414,19cyclictest0-21swapper/411:57:094
1435248995414,19cyclictest0-21swapper/411:45:054
1435248995414,19cyclictest0-21swapper/411:30:434
1435248995414,19cyclictest0-21swapper/411:25:584
1435248995414,19cyclictest0-21swapper/410:45:104
1435248995414,19cyclictest0-21swapper/410:31:394
1435248995414,19cyclictest0-21swapper/410:31:384
1435248995414,19cyclictest0-21swapper/409:42:304
1435248995414,19cyclictest0-21swapper/409:36:544
1435248995414,19cyclictest0-21swapper/408:58:434
1435248995414,19cyclictest0-21swapper/408:46:234
1435248995414,19cyclictest0-21swapper/408:18:384
1435248995414,19cyclictest0-21swapper/407:35:104
1435248995414,19cyclictest0-21swapper/407:33:464
1435248995414,19cyclictest0-21swapper/407:11:314
1435248995414,0cyclictest0-21swapper/410:26:554
1435248995414,0cyclictest0-21swapper/410:26:544
1435248995414,0cyclictest0-21swapper/408:54:024
1435248995414,0cyclictest0-21swapper/408:41:184
1435248995413,19cyclictest0-21swapper/407:15:064
143524599540,54cyclictest0-21swapper/107:50:171
1435248995314,0cyclictest0-21swapper/407:50:584
1435251995233,19cyclictest0-21swapper/708:25:157
1435244995233,19cyclictest0-21swapper/010:45:160
1435251995113,38cyclictest0-21swapper/711:15:137
1435245995012,19cyclictest0-21swapper/111:45:151
1435251994911,19cyclictest0-21swapper/707:15:167
1435250994911,19cyclictest0-21swapper/611:15:136
1435250994910,39cyclictest0-21swapper/611:05:136
1435244994931,18cyclictest0-21swapper/008:55:150
1435251994830,18cyclictest0-21swapper/709:25:167
1435247994810,19cyclictest0-21swapper/309:45:163
1435244994810,19cyclictest0-21swapper/008:40:160
143525199479,19cyclictest0-21swapper/707:40:187
143524999478,39cyclictest0-21swapper/511:50:175
143524799478,39cyclictest0-21swapper/312:10:143
143525199468,19cyclictest0-21swapper/712:15:167
143524499467,39cyclictest0-21swapper/009:05:160
143524999457,19cyclictest0-21swapper/511:20:165
143524599445,39cyclictest0-21swapper/108:30:161
1435251994324,19cyclictest0-21swapper/708:30:167
143525199424,19cyclictest0-21swapper/711:10:157
143524999423,38cyclictest70-21ksoftirqd/508:35:155
143525199413,19cyclictest0-21swapper/711:25:147
1435251994021,19cyclictest0-21swapper/711:05:137
143524499401,39cyclictest0-21swapper/011:30:140
143525199391,19cyclictest0-21swapper/711:45:157
143524799390,20cyclictest0-21swapper/307:25:203
1435251993818,20cyclictest88-21ksoftirqd/709:20:187
1435247993819,19cyclictest0-21swapper/311:00:173
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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