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2026-07-07 - 08:26
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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 all highest latencies:
System rack6slot5.osadl.org (updated Tue Jul 07, 2026 00:43:45)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
62739986744603,4061cyclictest17415-21kworker/0:019:15:350
62739976134123,3448cyclictest17415-21kworker/0:019:22:570
62739963573306,2993cyclictest17415-21kworker/0:019:26:150
62739961563304,2801cyclictest17415-21kworker/0:019:14:070
61872807186,204sleep00-21swapper19:09:550
62739948247,250cyclictest21792-21kworker/u2:022:38:210
62739948032,435cyclictest344450irq/10-eth000:39:180
62739947942,196cyclictest12211-21python23:16:110
62739947234,424cyclictest29526-21cron23:55:010
62739946725,428cyclictest21530-21python19:50:460
62739946536,360cyclictest21867-21ssh22:26:510
62739945933,426cyclictest8464-21sh23:08:440
62739945831,367cyclictest4120-21syslogd21:14:560
62739945632,369cyclictest22677-21munin-node19:55:220
62739945332,361cyclictest16248-21ssh23:25:370
62739942134,212cyclictest269292sleep023:48:450
62739941926,87cyclictest4224-21lldpd19:44:470
62739941526,375cyclictest14275-21vmstat22:10:470
62739941135,376cyclictest0-21swapper21:06:550
62739940932,377cyclictest14736-21ps23:21:250
62739940835,360cyclictest32583-21ssh21:40:440
62739940833,362cyclictest7105-21munin-node21:23:420
62739940744,350cyclictest10866-21ssh22:04:180
62739940734,360cyclictest4224-21lldpd00:30:050
62739940551,341cyclictest17190-21ssh22:16:350
62739940532,360cyclictest21792-21kworker/u2:022:34:470
62739940520,88cyclictest12-21rcu_preempt20:50:220
62739940517,374cyclictest12097-21timerandwakeup22:06:000
62739940441,348cyclictest492-21ssh22:51:070
62739940348,341cyclictest17901-21diskmemload21:33:520
62739940333,360cyclictest15253-21kworker/u2:121:28:110
62739940231,359cyclictest29648-21munin-node22:45:120
62739940025,360cyclictest28772-21ssh22:41:440
62739939832,351cyclictest13738-21sed19:30:290
62739939832,351cyclictest10305-21runrttasks20:48:390
62739939820,88cyclictest5333-21grep00:11:110
62739939819,365cyclictest2414-21ssh00:05:410
62739939745,291cyclictest27909-21sh20:10:010
62739939632,360cyclictest7398-21kworker/u2:000:16:220
62739939632,350cyclictest1758-21latency_hist00:05:020
62739939619,88cyclictest15075-21ssh00:32:340
62739939619,364cyclictest7769-21ssh21:56:260
62739939531,350cyclictest25595-21cut20:01:010
62739939521,87cyclictest9718-21strings23:10:560
62739939232,347cyclictest21685-21cstates23:36:230
62739939232,346cyclictest6019-21ssh23:03:080
62739939230,250cyclictest11-21ksoftirqd/021:54:570
62739938934,342cyclictest30411-21ssh23:55:490
62739938838,338cyclictest351950irq/10-yenta00:20:120
62739938834,341cyclictest20601-21munin-node21:15:260
62739938454,269cyclictest1457-21grep20:25:230
62739938353,270cyclictest20166-21ssh23:34:310
62739938235,288cyclictest31220-21chrt21:37:350
62739938152,269cyclictest1776-21munin-node21:46:240
62739938152,268cyclictest4217-21tune2fs20:30:540
62739938150,271cyclictest14203-21sendmail21:00:020
62739937935,188cyclictest31629-21sh20:20:010
62739937546,269cyclictest19866-21proc_pri19:45:540
62739937451,262cyclictest7941-21cut20:40:530
62739937134,337cyclictest0-21swapper22:24:080
62739937040,269cyclictest1941-21sh22:55:250
62739937032,325cyclictest16466-21chrt19:37:330
62739936132,268cyclictest4305-21snmpd20:35:230
62739934041,299cyclictest0-21swapper23:43:130
62739932651,261cyclictest28013-21latency_hist20:10:030
62739932452,258cyclictest32541-21grep20:20:410
62739932252,256cyclictest14790-21awk21:00:310
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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