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2024-07-27 - 07:01
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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 highest latencies:
System rack3slot6.osadl.org (updated Sat Jul 27, 2024 00:45:01)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
794321230,4chrt7941-21df23:45:170
1048821180,4chrt10483-21unixbench_singl23:50:330
205772900,4chrt20112-21apt-get00:20:140
374499828,62cyclictest3822-21apt-get19:10:120
374499827,63cyclictest22355-21apt-get00:25:110
374499807,62cyclictest24694-21apt-get20:05:160
374499797,61cyclictest3686-21apt-get22:05:150
374499796,62cyclictest3060-21apt-get20:35:110
374499787,60cyclictest22900-21apt-get21:30:160
374499787,59cyclictest31915-21apt-get20:25:120
374499786,61cyclictest1270-21apt-get20:30:130
374499777,60cyclictest7906-21apt-get19:20:120
374499777,58cyclictest22010-21apt-get22:55:150
374499777,58cyclictest16339-21apt-get22:40:110
374499773,69cyclictest21149-21/usr/sbin/munin22:50:310
268682770,4chrt26847-21apt-get21:40:190
128602770,5chrt12861-21sendmail00:00:000
374499768,57cyclictest6096-21apt-get19:15:130
374499757,57cyclictest26532-21apt-get20:10:110
374499757,57cyclictest19003-21apt-get19:50:100
374499757,57cyclictest16672-21apt-get00:10:150
374499756,60cyclictest6713-21apt-get20:45:120
374499756,59cyclictest8499-21apt-get20:50:110
208652750,4chrt20860-21telnet19:55:160
374499747,56cyclictest14833-21apt-get00:05:130
374499746,57cyclictest28637-21apt-get21:45:100
164262740,4chrt16423-21sshd21:10:320
374499738,55cyclictest24139-21apt-get00:30:100
374499737,56cyclictest1584-21apt-get22:00:120
374499729,53cyclictest29234-21apt-get23:15:110
374499728,54cyclictest18432-21apt-get22:45:220
374499727,55cyclictest32212-21apt-get21:55:110
374499726,57cyclictest12692-21apt-get22:30:090
374499725,60cyclictest25935-21diskstats23:05:190
374499723,15cyclictest11882-21unixbench-2d22:25:360
374499723,11cyclictest22917-21df20:00:180
374499722,17cyclictest17508-21/usr/sbin/munin21:15:240
374499722,12cyclictest24640-21python323:00:340
374499718,53cyclictest9116-21apt-get22:20:110
374499717,55cyclictest30426-21apt-get21:50:120
374499717,53cyclictest28323-21apt-get20:15:130
374499714,59cyclictest15187-21ntp_states22:35:330
374499714,11cyclictest25505-21python321:35:320
374499712,65cyclictest16250-21python319:40:330
374499707,53cyclictest25928-21apt-get00:35:110
374499707,52cyclictest27442-21apt-get23:10:120
374499703,62cyclictest19459-21aten2.4_r3power21:20:140
374499697,51cyclictest13047-21apt-get00:00:120
374499696,52cyclictest21106-21apt-get21:25:100
374499693,56cyclictest2187-21apt-get23:30:120
374499692,61cyclictest922-21memory23:25:230
374499687,51cyclictest4928-21apt-get20:40:130
374499687,51cyclictest3976-21apt-get23:35:100
374499683,58cyclictest12112-21diskstats19:30:190
374499677,52cyclictest12100-21apt-get21:00:130
374499677,50cyclictest18454-21apt-get00:15:120
374499677,50cyclictest13573-21apt-get19:35:120
374499676,51cyclictest10000-21apt-get19:25:120
374499672,60cyclictest31192-21cut23:20:180
374499672,59cyclictest4947-21snmpd23:43:320
374499668,48cyclictest7306-21apt-get22:15:100
374499665,55cyclictest5512-21/usr/sbin/munin22:10:330
374499664,54cyclictest30130-21apt-get20:20:110
374499658,46cyclictest17218-21apt-get19:45:100
374499653,55cyclictest10291-21apt-get20:55:130
374499652,14cyclictest14692-21sensors21:05:320
318626316,37sleep00-21swapper/019:06:410
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*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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