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2025-07-12 - 11:14
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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 50 highest latencies:
System rack0slot4.osadl.org (updated Sat Jul 12, 2025 00:46:55)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
17191312358317,33sleep00-21swapper/019:08:250
171966099357357,0cyclictest0-21swapper/921:20:2315
17189372357310,14sleep80-21swapper/819:05:5114
17190302355330,17sleep10-21swapper/119:07:051
17177512355346,6sleep110-21swapper/1119:05:223
17189782354312,14sleep90-21swapper/919:06:2515
17192152349325,15sleep50-21swapper/519:09:3511
17189832348324,15sleep140-21swapper/1419:06:316
17192342342320,14sleep60-21swapper/619:09:5112
17156812342319,15sleep150-21swapper/1519:05:107
17190782340318,14sleep40-21swapper/419:07:4010
17190142340318,14sleep20-21swapper/219:06:508
17189652340317,15sleep130-21swapper/1319:06:125
17189362339316,15sleep70-21swapper/719:05:5013
17189392338316,14sleep100-21swapper/1019:05:532
17192032337314,15sleep120-21swapper/1219:09:254
17189722335312,15sleep30-21swapper/319:06:199
171964099320319,1cyclictest491rcuc/321:20:239
171966699311310,1cyclictest1834429-21nodev-device-ev21:20:223
1719670993030,302cyclictest1945535-21daemon-init23:30:184
171963299273271,1cyclictest1611725-21kworker/1:2+events21:20:221
171963099269268,1cyclictest0-21swapper/019:15:010
171965299231230,1cyclictest1945567-21nodev-device-ev23:30:1913
171968099230229,1cyclictest0-21swapper/1523:30:197
171965099216215,1cyclictest1817311-21nodev-device-ev21:00:1912
171965099216215,1cyclictest0-21swapper/623:05:1712
171967699208207,1cyclictest1924205-21nodev-device-ev23:05:176
171967699208207,1cyclictest0-21swapper/1421:00:196
171965699176175,1cyclictest1724776-21nodev-device-ev19:15:0014
1719650999998,1cyclictest1761761-21nodev-device-ev19:55:2212
171963299990,99cyclictest0-21swapper/120:20:211
1719636999896,1cyclictest1954113-21nodev-device-ev23:40:168
1719660999392,1cyclictest0-21swapper/923:10:2115
1719640999392,1cyclictest1808777-21nodev-device-ev20:50:189
1719676999190,1cyclictest0-21swapper/1419:55:226
1719630999089,1cyclictest0-21swapper/022:15:210
171964299880,87cyclictest1817280-21daemon-init21:00:2010
1719660998584,1cyclictest0-21swapper/922:45:1915
1719656998584,1cyclictest0-21swapper/819:35:1814
1719670998483,1cyclictest0-21swapper/1222:35:194
1719670998483,1cyclictest0-21swapper/1222:35:194
1719666998382,1cyclictest0-21swapper/1120:50:183
1719642998382,1cyclictest0-21swapper/400:05:1810
1719650997877,1cyclictest1791682-21nodev-device-ev20:30:1712
1719632997372,1cyclictest0-21swapper/121:10:181
1719676997069,1cyclictest0-21swapper/1420:30:186
1719672997064,1cyclictest0-21swapper/1322:50:205
1719636997069,1cyclictest0-21swapper/221:30:188
1719630997069,1cyclictest0-21swapper/023:50:210
1719636996867,1cyclictest1766020-21nodev-device-ev20:00:198
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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