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2026-07-18 - 01:37
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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 highest latencies:
System rack6slot5.osadl.org (updated Fri Jul 17, 2026 12:46:33)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
27319979444243,3650cyclictest31838-21kworker/0:207:14:170
27319949532605,2345cyclictest31838-21kworker/0:207:15:530
23242779183,202sleep00-21swapper07:07:460
27319958546,469cyclictest24264-31copy08:06:060
27319951331,468cyclictest15588-21diskmemload09:42:090
27319950664,382cyclictest11-21ksoftirqd/009:46:390
27319948832,395cyclictest15588-19diskmemload12:41:190
27319948551,365cyclictest13462-31apt07:35:450
27319948534,390cyclictest15588-21diskmemload10:38:010
27319948532,391cyclictest32080-21perl11:01:350
27319948032,387cyclictest15588-21diskmemload10:58:190
27319947932,386cyclictest21854-21munin-node11:56:110
27319947739,378cyclictest20105-21ssh11:50:370
27319947634,372cyclictest10724-21ls07:30:020
27319947432,381cyclictest32506-21latency_hist12:20:070
27319947131,370cyclictest3096-21sshd08:35:310
27319946836,418cyclictest15588-21diskmemload11:11:200
27319946436,369cyclictest29188-21ssh12:11:070
27319946236,412cyclictest15588-21diskmemload09:39:580
27319946136,366cyclictest15588-21diskmemload10:07:030
27319946036,363cyclictest25528-21ssh09:31:330
27319946032,413cyclictest19796-21sshd09:19:310
27319945836,361cyclictest15588-21diskmemload12:30:070
27319945831,413cyclictest6102-21kworker/u2:210:03:570
27319945772,88cyclictest11-21ksoftirqd/010:50:300
27319945632,362cyclictest21235-21cstates07:56:080
27319945631,410cyclictest24362-21sed12:00:330
27319945534,359cyclictest1240-21seq11:05:490
27319945531,362cyclictest59702sleep008:41:380
27319945434,359cyclictest15556-21sed07:41:010
27319945432,361cyclictest20131-21sed09:20:180
27319945432,360cyclictest15588-21diskmemload10:48:490
27319945334,357cyclictest23380-21sshd09:26:310
27319945238,353cyclictest8651-21ssh12:39:060
27319945236,356cyclictest12555-21hddtemp_smartct10:16:270
27319945232,407cyclictest27923-21ssh12:08:370
27319945135,356cyclictest15588-21diskmemload09:55:410
27319945132,359cyclictest5356-21memory12:30:520
27319945075,362cyclictest11-21ksoftirqd/011:35:250
27319945034,356cyclictest15588-21diskmemload11:18:080
27319945034,355cyclictest15588-21diskmemload11:33:020
27319945031,358cyclictest31592-21wc08:25:210
27319944832,402cyclictest4944-19udevd10:41:240
27319944731,402cyclictest1939-21ps08:31:080
27319944532,353cyclictest13692-21ntp_states10:20:240
27319944531,344cyclictest10042-21idleruntime-cro08:55:010
27319944436,349cyclictest15588-21diskmemload12:20:440
27319944432,353cyclictest15588-21diskmemload10:29:180
27319943973,353cyclictest351950irq/10-yenta11:24:210
27319943932,346cyclictest4224-21lldpd11:27:010
27319943855,87cyclictest18707-21munin-node07:50:320
27319943831,347cyclictest3791-21kworker/u2:010:12:120
27319943732,346cyclictest17398-21rm11:42:490
27319943433,386cyclictest16432-21munin-node09:10:530
27319942432,378cyclictest15588-21diskmemload09:54:200
27319942160,361cyclictest0-21swapper08:59:140
27319941636,366cyclictest15588-21diskmemload11:48:500
27319941537,318cyclictest7916-21strings07:20:440
27319941534,322cyclictest14707-21find09:05:500
27319940851,357cyclictest0-21swapper07:34:540
27319940553,291cyclictest18066-21df10:30:270
27319940332,311cyclictest7503-21hddtemp_smartct08:45:590
27319939249,283cyclictest28542-21seq08:15:500
27319939232,347cyclictest2667-21cyclictest08:04:310
27319939131,337cyclictest12645-21munin-node09:00:350
27319938632,340cyclictest26027-21cut08:10:200
27319938533,292cyclictest30692-21ps08:21:070
27319938331,338cyclictest16900-21awk07:45:320
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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