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2025-06-17 - 02:12
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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 Tue Jun 17, 2025 00:46:55)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
22626952360352,5sleep140-21swapper/1419:08:466
22609692354344,6sleep20-21swapper/219:05:208
22626152352333,11sleep120-21swapper/1219:07:394
22617712351343,5sleep100-21swapper/1019:05:282
22625072348303,15sleep80-21swapper/819:06:1414
22626082345322,15sleep70-21swapper/719:07:3413
22624852345323,14sleep30-21swapper/319:05:539
22626072344322,15sleep60-21swapper/619:07:3312
22626052343320,15sleep40-21swapper/419:07:3110
22625792341319,14sleep150-21swapper/1519:07:107
22624872341317,16sleep50-21swapper/519:05:5611
22626942340317,15sleep130-21swapper/1319:08:455
22625172339317,15sleep00-21swapper/019:06:230
22626802337314,15sleep10-21swapper/119:08:331
22625542337313,15sleep90-21swapper/919:06:4815
22625292335313,14sleep110-21swapper/1119:06:333
226324399208207,1cyclictest2300989-21nodev-device-ev19:50:1911
226327299178178,0cyclictest0-21swapper/1319:50:195
2263248998281,1cyclictest0-21swapper/722:10:1913
2263238998180,1cyclictest0-21swapper/420:35:2310
2263238997876,2cyclictest2501927-21nodev-device-ev23:45:1710
2263248997776,1cyclictest0-21swapper/700:05:2213
2263233997574,1cyclictest0-21swapper/223:50:208
2263255997471,3cyclictest0-21swapper/919:40:1715
2263255997371,2cyclictest0-21swapper/921:40:1915
2263233996968,1cyclictest2322363-21nodev-device-ev20:15:188
2263228996965,4cyclictest2395048-21nodev-device-ev21:40:201
2263228996965,3cyclictest2292440-21nodev-device-ev19:40:181
2263248996867,1cyclictest2399336-21nodev-device-ev21:45:2013
2263266996362,1cyclictest0-21swapper/1221:35:194
2263243996261,1cyclictest2296727-21nodev-device-ev19:45:1911
2263255995958,1cyclictest0-21swapper/922:50:1815
2263266995554,1cyclictest2343748-21nodev-device-ev20:40:194
2263258995352,1cyclictest2467739-21nodev-device-ev23:05:182
226323899530,52cyclictest2296697-21daemon-init19:45:1910
2263228995251,1cyclictest2454904-21nodev-device-ev22:50:171
2263248995150,1cyclictest2472004-21nodev-device-ev23:10:2113
2263238995049,1cyclictest0-21swapper/421:00:1810
2263258994444,0cyclictest0-21swapper/1020:49:202
2263258994443,1cyclictest0-21swapper/1022:35:212
2263258994443,1cyclictest0-21swapper/1022:35:212
2263225994442,1cyclictest0-21swapper/023:30:210
2263225994342,1cyclictest2335197-21nodev-device-ev20:30:180
2263274994140,1cyclictest0-21swapper/1419:35:206
2263258994141,0cyclictest0-21swapper/1021:18:242
2263255994140,1cyclictest2283898-21nodev-device-ev19:30:2115
2263255994140,1cyclictest2283898-21nodev-device-ev19:30:2115
2263272993916,10cyclictest0-21swapper/1322:54:555
2263272993838,0cyclictest0-21swapper/1319:22:565
2263272993838,0cyclictest0-21swapper/1319:22:565
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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