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2024-04-15 - 17:02
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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 Mon Apr 15, 2024 12:45:02)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
582221290,4chrt5359-21apt-get11:00:110
1876621230,4chrt18767-21/usr/sbin/munin11:35:150
17938999335,47cyclictest26163-21apt-get09:00:070
173282840,4chrt17327-21sh11:30:250
282282830,4chrt28226-21irqstats07:35:220
17938998316,21cyclictest4030-21cat10:55:150
1793899828,16cyclictest9433-21apt-get11:10:070
243652810,4chrt24367-21cpu07:25:100
1793899817,20cyclictest15679-21apt-get10:00:060
308782800,5chrt30873-21grep09:10:420
1793899807,17cyclictest26995-21apt-get10:30:090
1793899807,17cyclictest1900-21apt-get10:50:060
1793899797,19cyclictest7595-21apt-get11:05:070
1793899797,17cyclictest20285-21apt-get11:40:060
1752327916,25sleep00-21swapper/007:07:520
1793899778,17cyclictest31875-21apt-get09:15:210
202762760,4chrt20273-21packagekitd07:15:090
1793899767,15cyclictest11225-21apt-get11:15:080
1793899759,20cyclictest2706-21apt-get07:55:090
1793899746,17cyclictest18006-21apt-get07:10:060
1793899739,16cyclictest30755-21apt-get10:40:070
1793899736,18cyclictest13869-21apt-get09:55:080
1793899732,37cyclictest31753-21grep12:10:200
1793899728,52cyclictest22073-21apt-get11:45:100
17938997223,15cyclictest6137-21seq12:30:130
1793899719,18cyclictest28890-21apt-get10:35:060
1793899718,19cyclictest23220-21apt-get10:20:070
1793899717,15cyclictest13038-21apt-get11:20:070
1793899714,22cyclictest10282-21apt-get09:45:070
1793899712,9cyclictest20385-21proc_pri10:10:320
1793899712,38cyclictest21407-21apt-get10:15:080
17938997113,13cyclictest27088-21who07:30:420
1793899708,17cyclictest8498-21apt-get09:40:080
1793899707,19cyclictest8144-21apt-get08:10:100
1793899703,19cyclictest807-21latency_hist07:50:010
1793899698,19cyclictest3052-21apt-get09:25:050
1793899697,19cyclictest25647-21apt-get11:55:070
1793899696,16cyclictest27946-21apt-get09:05:080
1793899688,17cyclictest1264-21apt-get09:20:070
1793899688,16cyclictest22561-21apt-get08:50:050
1793899688,16cyclictest12073-21apt-get09:50:040
1793899687,19cyclictest22397-21apt-get07:20:060
1793899685,27cyclictest29765-21/usr/sbin/munin07:40:230
1793899684,30cyclictest3127-21python312:20:260
1793899684,29cyclictest6297-21/usr/sbin/munin08:05:190
1793899683,27cyclictest9926-21/usr/sbin/munin08:15:320
1793899677,18cyclictest4103-21apt-get12:25:100
1793899677,18cyclictest24356-21apt-get08:55:090
1793899677,18cyclictest13531-21apt-get08:25:070
1793899673,28cyclictest4947-21snmpd10:28:440
1793899668,16cyclictest17470-21apt-get10:05:090
1793899668,16cyclictest17117-21apt-get08:35:070
1793899668,14cyclictest15328-21apt-get08:30:080
1793899667,17cyclictest14833-21apt-get11:25:050
1793899667,16cyclictest6635-21apt-get09:35:080
1793899657,18cyclictest11742-21apt-get08:20:070
1793899646,19cyclictest20771-21apt-get08:45:070
1793899494,39cyclictest1460-21memory07:50:260
1793899474,37cyclictest23857-21/usr/sbin/munin11:50:250
17938994729,12cyclictest29297-21/usr/sbin/munin12:05:290
1793899464,10cyclictest4509-21apt-get08:00:080
1793899453,35cyclictest4844-21apt-get09:30:070
17938994431,9cyclictest32545-21apt-get10:45:090
1793899437,16cyclictest27518-21apt-get12:00:110
1793899432,37cyclictest18983-21apt-get08:40:070
1793899424,13cyclictest1029-21memory12:15:190
1793899402,32cyclictest7955-21/usr/sbin/munin12:35:130
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*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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