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2026-07-30 - 03:43
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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
Characteristics of the 50 highest latencies:
System rackdslot0.osadl.org (updated Wed Jul 29, 2026 12:46:07)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3041499230,18cyclictest0-21swapper/112:33:201
3041399220,5cyclictest0-21swapper/008:05:000
3041399213,10cyclictest0-21swapper/007:40:400
3042099203,2cyclictest2858-21rs:main2
3042099203,16cyclictest5478-21acpi09:15:112
3042099203,16cyclictest5478-21acpi09:15:102
3041399202,11cyclictest6335-21cut10:15:010
3042099194,1cyclictest0-21swapper/209:59:032
30420991916,2cyclictest30347-21nfsd409:00:192
3042099190,1cyclictest0-21swapper/207:51:132
3042099190,1cyclictest0-21swapper/207:20:012
3042099190,18cyclictest0-21swapper/209:28:282
3041499192,16cyclictest26237-21processes11:45:221
30414991917,1cyclictest0-21swapper/111:44:101
30414991914,2cyclictest14809-21apt-get12:25:011
3041499191,3cyclictest16607-21nfsd410:30:191
3041499191,3cyclictest16607-21nfsd410:30:181
3041499190,1cyclictest0-21swapper/112:04:291
3041499190,17cyclictest2007-21systemd-journal10:19:191
30413991912,5cyclictest870-21systemd-logind11:06:510
3041399190,18cyclictest426-21systemd-udevd08:36:520
3041399190,17cyclictest11134-21nfsd408:25:190
3042099182,15cyclictest28825-21munin-run10:55:002
30420991814,3cyclictest1377-21lxd12:08:452
3042099181,2cyclictest9901-21cpuspeed_turbos08:25:142
3042099180,17cyclictest399-20systemd-journal09:30:022
3041499182,2cyclictest424-21sort09:05:181
30414991816,1cyclictest0-21swapper/109:45:181
3041499181,16cyclictest29386-21expr09:00:141
3041499181,16cyclictest11506-21cstates09:25:131
3041499180,3cyclictest9444-21grep11:15:171
3041499180,3cyclictest399-20systemd-journal11:30:001
3041499180,17cyclictest843-21systemd-network10:49:341
3041499180,17cyclictest28845-21grep11:50:181
3041499180,17cyclictest1522-21lxd12:08:461
3041499180,15cyclictest0-21swapper/107:43:351
3041399183,1cyclictest0-21swapper/007:21:310
3041399182,2cyclictest10281-21expr10:20:120
3041399182,15cyclictest0-21swapper/011:20:310
30413991815,2cyclictest2478-21cron08:15:010
3041399181,2cyclictest3053-21systemd-logind09:16:510
3041399181,2cyclictest3053-21systemd-logind09:16:510
3041399181,1cyclictest0-21swapper/011:00:220
3041399181,16cyclictest3053-21systemd-logind11:10:510
30420991715,1cyclictest0-21swapper/212:24:212
30420991715,1cyclictest0-21swapper/211:44:202
30420991714,2cyclictest9317-21apache_accesses12:15:122
30420991714,2cyclictest7860-21awk12:10:192
30420991714,2cyclictest3259-21fschecks_time09:10:162
30420991714,2cyclictest32441-21latency_hist08:10:012
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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