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2026-07-26 - 04:19
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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 Sun Jul 26, 2026 00:43:48)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
12569975674100,3416cyclictest1318-21kworker/0:119:21:160
12569963653552,2811cyclictest1318-21kworker/0:119:12:290
12569960833307,2772cyclictest1318-21kworker/0:119:15:480
6182780186,204sleep00-21swapper19:05:300
12569947239,372cyclictest18005-21ssh23:44:030
12569947237,435cyclictest0-21swapper22:28:390
12569947234,424cyclictest29699-21perl22:56:220
12569945882,192cyclictest4924-21runrttasks23:36:000
12569945181,187cyclictest26728-21ssh00:03:200
12569944987,188cyclictest22886-21ssh21:29:230
12569944967,368cyclictest0-21swapper22:34:410
12569944827,361cyclictest2976-21ssh00:22:340
12569944768,212cyclictest0-21swapper20:19:250
12569944566,195cyclictest0-21swapper20:06:330
12569944168,360cyclictest0-21swapper21:59:140
12569943463,358cyclictest0-21swapper22:41:550
12569943163,355cyclictest0-21swapper19:31:210
12569942967,177cyclictest31387-21ssh00:14:320
12569942667,177cyclictest11-21ksoftirqd/023:34:380
12569942665,178cyclictest8923-21ssh23:22:590
12569942636,390cyclictest0-21swapper23:27:050
12569942465,300cyclictest14927-21ssh22:24:140
12569942464,178cyclictest27392-21ssh21:39:460
12569941134,363cyclictest16387-21latency_hist21:15:010
12569940833,261cyclictest29910-21ls21:45:190
12569940819,376cyclictest27339-21df00:05:270
12569940814,97cyclictest6965-21kworker/u2:000:39:540
12569940635,90cyclictest32764-21ssh23:04:490
12569940616,385cyclictest6659-21gltestperf22:05:310
12569940536,354cyclictest344450irq/10-eth000:19:370
12569940034,366cyclictest12281-21ssh22:17:080
12569939945,340cyclictest7131-21ssh00:31:240
12569939833,365cyclictest29432-21ssh21:43:490
12569939736,347cyclictest351950irq/10-yenta21:20:090
12569939732,350cyclictest19632-21ssh22:35:100
12569939615,97cyclictest25716-21seq22:47:490
12569939533,362cyclictest14161-21diskmemload23:13:420
12569939533,349cyclictest5839-21kworker/0:122:12:160
12569939531,364cyclictest19456-21kworker/u2:023:48:080
12569939442,339cyclictest27965-21ssh22:52:580
12569939353,280cyclictest18035-21ls19:50:580
12569939339,340cyclictest12861-21sed21:05:280
12569939237,355cyclictest0-21swapper23:59:390
12569939223,366cyclictest17184-21ssh21:15:470
12569939135,341cyclictest4924-21runrttasks22:04:360
12569939131,360cyclictest20726-21awk23:50:240
12569939119,359cyclictest0-21swapper00:29:120
12569939053,337cyclictest7145-21sendmail23:20:030
12569939036,354cyclictest0-21swapper20:48:520
12569939020,370cyclictest10595-21basename21:00:140
12569938933,342cyclictest14161-21diskmemload23:08:080
12569938916,359cyclictest16612-21kworker/u2:321:32:030
12569938835,338cyclictest21670-21perl20:00:560
12569938733,340cyclictest14161-21diskmemload21:54:120
12569938440,284cyclictest10511-1kworker/0:2H20:21:250
12569938242,278cyclictest14197-21missed_timers19:41:060
12569937731,346cyclictest0-21swapper20:12:050
12569937253,87cyclictest4924-21runrttasks19:56:510
12569937234,338cyclictest0-21swapper20:57:510
12569936895,260cyclictest4285-21lldpd19:35:250
12569936737,270cyclictest4269-21cstates20:40:590
12569935832,89cyclictest7923-21perl20:50:550
12569935634,89cyclictest556-21fschecks_count20:31:180
12569935081,257cyclictest11-21ksoftirqd/019:45:210
12569933963,263cyclictest89952sleep019:27:100
12569933864,261cyclictest0-21swapper20:39:190
12569933068,203cyclictest4924-21runrttasks20:27:130
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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