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2026-05-16 - 00:45
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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 rack1slot1.osadl.org (updated Fri May 15, 2026 12:45:18)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
131822214176,24sleep00-21swapper/007:05:270
134182200159,27sleep30-21swapper/307:08:323
132802199160,26sleep10-21swapper/107:06:441
132142198158,26sleep20-21swapper/207:05:542
1361899209,11cyclictest0-21swapper/009:35:110
1361899209,11cyclictest0-21swapper/009:35:100
85622190,0sleep10-21swapper/108:05:131
17082180,1sleep121-21ksoftirqd/109:45:131
122892180,1sleep312292-21unixbench-2d10:40:223
13631991612,2cyclictest240-21systemd-journal09:54:592
1363199160,15cyclictest18113-21apt-get10:50:102
1363199150,14cyclictest19288-21apt-get11:35:112
1363199150,14cyclictest16656-21aten_r1power_cu10:05:112
1363199150,14cyclictest0-21swapper/211:00:102
323482140,0sleep10-21swapper/107:45:181
1363199141,12cyclictest9574-21cat11:20:202
1363199141,12cyclictest31904-21/usr/sbin/munin12:35:132
1363199140,13cyclictest16989-21apt-get12:15:122
1363199140,12cyclictest12955-21apt-get08:15:122
1363199131,11cyclictest29328-21fschecks_time07:40:132
1363199131,11cyclictest29328-21fschecks_time07:40:122
1363199131,11cyclictest25273-21hwlatdetect12:25:142
1363199130,12cyclictest6698-21hddtemp_smartct08:00:142
1363199130,12cyclictest29708-21cstates11:05:122
1363199130,12cyclictest22289-21sed08:34:592
1363199130,12cyclictest11624-21ntp_states09:15:182
1363199130,12cyclictest0-21swapper/211:45:202
1363199130,12cyclictest0-21swapper/211:42:212
1363199130,12cyclictest0-21swapper/210:10:162
1363199130,12cyclictest0-21swapper/209:27:502
1363199130,11cyclictest27872-21wc09:35:202
1363199130,11cyclictest27872-21wc09:35:192
1363199130,0cyclictest0-21swapper/210:40:062
1363199121,10cyclictest16870-21apt-get07:15:132
1363199121,10cyclictest0-21swapper/208:50:012
1363199120,12cyclictest0-21swapper/211:58:292
1363199120,12cyclictest0-21swapper/211:26:122
1363199120,12cyclictest0-21swapper/211:10:122
1363199120,12cyclictest0-21swapper/210:20:382
1363199120,12cyclictest0-21swapper/209:11:552
1363199120,11cyclictest12721-21apt-config10:00:002
1363199120,11cyclictest0-21swapper/212:30:092
1363199120,11cyclictest0-21swapper/212:12:292
1363199120,11cyclictest0-21swapper/211:19:282
1363199120,11cyclictest0-21swapper/210:30:472
1363199120,11cyclictest0-21swapper/209:56:542
1363199120,11cyclictest0-21swapper/208:40:142
1363199120,0cyclictest0-21swapper/211:30:182
1363199120,0cyclictest0-21swapper/209:05:142
1363199111,10cyclictest0-21swapper/211:00:002
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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