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2025-12-07 - 03:42
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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
Characteristics of the highest latencies:
System rack6slot6 (updated Sun Dec 07, 2025 00:43:30)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
237329910761253463,54050cyclictest3728-21ssh23:56:280
237329910697253434,53446cyclictest0-21swapper21:40:090
237329910680353379,53335cyclictest5350irq/9-uhci_hcd:00:13:030
237329910675153413,53247cyclictest0-21swapper19:27:510
237329910673153465,53177cyclictest9-21ksoftirqd/019:54:580
237329910668253471,53122cyclictest9-21ksoftirqd/021:18:120
237329910663353423,53210cyclictest0-21swapper22:46:380
237329910658453389,53104cyclictest0-21swapper23:01:520
237329910655453425,53129cyclictest0-21swapper23:24:490
237329910649853474,53024cyclictest0-21swapper22:08:470
237329910649253469,53023cyclictest0-21swapper21:00:370
237329910647753474,53003cyclictest0-21swapper22:54:500
237329910647253469,53003cyclictest0-21swapper21:14:110
237329910647053422,52984cyclictest9-21ksoftirqd/022:56:510
237329910646853461,53007cyclictest0-21swapper23:29:300
237329910646253408,53054cyclictest0-21swapper23:42:240
237329910644353442,53001cyclictest0-21swapper23:19:470
237329910644253399,53043cyclictest0-21swapper23:06:230
237329910642353458,52965cyclictest0-21swapper19:16:370
237329910638653464,52858cyclictest9-21ksoftirqd/019:57:390
237329910636853424,52944cyclictest0-21swapper21:48:410
237329910634753461,52822cyclictest9-21ksoftirqd/000:07:210
237329910620153465,52736cyclictest0-21swapper22:23:410
237329910620053431,52769cyclictest0-21swapper20:17:350
237329910617753446,52731cyclictest0-21swapper20:14:040
237329910616753448,52719cyclictest0-21swapper22:34:340
237329910616653448,52718cyclictest0-21swapper20:04:110
237329910614453394,52750cyclictest0-21swapper19:10:460
237329910613953391,52748cyclictest0-21swapper20:57:160
237329910613653430,52706cyclictest0-21swapper00:31:280
237329910544752974,52471cyclictest2705-21ssh00:39:500
237329910509252995,52095cyclictest0-21swapper23:13:150
237329910504852933,52113cyclictest0-21swapper22:43:270
23732995323927,0cyclictest0-21swapper20:24:370
23732995323626,459cyclictest0-21swapper19:48:370
23732995291852908,8cyclictest27192-21ssh22:18:100
237329923811027,1229cyclictest9007-21ssh22:36:450
237329923521020,1208cyclictest21869-21ssh21:27:050
237329922751080,1102cyclictest0-21swapper19:20:380
237329922391014,1179cyclictest2103-21runrttasks20:29:580
237329922211035,1060cyclictest22624-21ssh00:22:150
237329920921086,882cyclictest8634-21diskmemload22:12:580
237329920451068,882cyclictest1861-21rm22:27:320
237329920331057,877cyclictest18410-21ssh00:16:140
237329920231086,843cyclictest133750irq/9-eth022:04:360
237329919601037,802cyclictest0-21swapper20:36:500
237329919521086,866cyclictest0-21swapper19:40:240
237329918851050,835cyclictest0-21swapper23:34:420
237329918851046,720cyclictest0-21swapper20:47:330
23732991739949,753cyclictest8876-21ssh21:53:320
237329917151060,589cyclictest3950irq/9-acpi23:36:420
23732991709929,743cyclictest28129-21ssh23:45:350
237329916871094,593cyclictest0-21swapper19:33:420
237329916851094,591cyclictest0-21swapper21:23:140
237329916851093,592cyclictest0-21swapper20:09:120
237329916721093,487cyclictest32530-21kworker/0:120:50:040
237329916641082,582cyclictest0-21swapper19:37:030
237329916621101,465cyclictest8067-21diskmemload00:02:400
237329916491075,574cyclictest0-21swapper21:07:190
237329915861083,437cyclictest9-21ksoftirqd/021:34:170
237329915361021,515cyclictest0-21swapper20:32:590
237329915341014,425cyclictest0-21swapper20:40:310
237329914931097,396cyclictest0-21swapper21:58:040
237329914881004,420cyclictest0-21swapper23:52:570
237329914191092,327cyclictest0-21swapper00:28:370
23732991141986,155cyclictest0-21swapper21:35:470
23448253267,208sleep00-21swapper19:09:080
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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