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2025-09-17 - 23:57
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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 Wed Sep 17, 2025 00:46:55)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
18485942363315,15sleep150-21swapper/1519:05:067
18486002359314,15sleep40-21swapper/419:05:1110
18485982359351,5sleep20-21swapper/219:05:098
18519002358317,14sleep10-21swapper/119:06:281
18519972356312,14sleep110-21swapper/1119:07:433
18519642356313,14sleep30-21swapper/319:07:199
18520732355312,14sleep90-21swapper/919:08:4515
18520502355311,14sleep100-21swapper/1019:08:302
18519222354310,36sleep00-21swapper/019:06:440
18521512345323,14sleep80-21swapper/819:09:4914
18521142342319,14sleep130-21swapper/1319:09:225
18519502341318,15sleep60-21swapper/619:07:0512
18520352340317,15sleep120-21swapper/1219:08:164
18521082339314,16sleep70-21swapper/719:09:1613
18519042339316,15sleep50-21swapper/519:06:3211
18519582336314,14sleep140-21swapper/1419:07:146
185251499314313,1cyclictest1984478-21nodev-device-ev21:40:191
185254299303303,0cyclictest0-21swapper/921:40:1915
185255499265264,1cyclictest1857660-21nodev-device-ev19:15:005
185251799248247,1cyclictest1911773-21nodev-device-ev20:15:208
1852514992480,247cyclictest1911742-21daemon-init20:15:201
185254499141141,0cyclictest0-21swapper/1020:15:202
1852527991030,1cyclictest0-21swapper/519:30:2211
185252799100100,0cyclictest0-21swapper/519:15:0011
1852537999998,1cyclictest2105309-21nodev-device-ev00:05:1814
1852557999291,1cyclictest1954561-21nodev-device-ev21:05:186
1852524999190,1cyclictest0-21swapper/423:40:2110
1852527998887,1cyclictest1937429-21nodev-device-ev20:45:1811
1852527998887,1cyclictest1937429-21nodev-device-ev20:45:1811
1852527998382,1cyclictest0-21swapper/522:40:1811
1852544997372,1cyclictest1941694-21nodev-device-ev20:50:182
1852544997372,1cyclictest1941694-21nodev-device-ev20:50:182
1852514997372,1cyclictest1958828-21nodev-device-ev21:10:181
1852522997170,1cyclictest0-21swapper/320:35:169
1852554996968,1cyclictest1873281-21nodev-device-ev19:30:225
1852534996966,1cyclictest1980189-21nodev-device-ev21:35:1813
1852517996462,1cyclictest1967348-21daemon-init21:20:198
1852542996362,1cyclictest0-21swapper/921:10:1815
1852522996059,1cyclictest0-21swapper/320:55:199
1852527995958,1cyclictest2066805-21nodev-device-ev23:20:1811
1852524995958,1cyclictest1933140-21nodev-device-ev20:40:1810
1852524995958,1cyclictest1933140-21nodev-device-ev20:40:1810
1852512995957,1cyclictest2130969-21nodev-device-ev00:35:190
1852534995756,1cyclictest0-21swapper/723:45:1613
1852554995150,1cyclictest0-21swapper/1320:45:185
1852554995150,1cyclictest0-21swapper/1320:45:185
1852554994645,1cyclictest2032572-21nodev-device-ev22:40:185
1852547994644,1cyclictest1928875-21nodev-device-ev20:35:163
185253299457,13cyclictest0-21swapper/620:55:3012
1852532993938,1cyclictest2113859-21nodev-device-ev00:15:1912
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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