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2026-04-20 - 03:23
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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 100 highest latencies:
System rack6slot6 (updated Mon Apr 20, 2026 00:43:29)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
19509910990055080,54818cyclictest1741-21hald19:20:360
19509910690053452,53357cyclictest0-21swapper21:05:060
19509910669353451,53242cyclictest0-21swapper23:12:520
19509910666053471,53125cyclictest9-21ksoftirqd/023:07:210
19509910651053459,53051cyclictest0-21swapper23:21:050
19509910650053470,53030cyclictest0-21swapper20:29:250
19509910648653423,53063cyclictest0-21swapper21:28:320
19509910647653448,53028cyclictest0-21swapper00:21:320
19509910645853467,52991cyclictest0-21swapper22:58:080
19509910644753394,52991cyclictest1941-21cyclictest20:33:270
19509910644053443,52997cyclictest0-21swapper00:08:490
19509910643053434,52996cyclictest0-21swapper21:22:510
19509910639953369,52967cyclictest7582-21kworker/0:223:46:220
19509910621953432,52787cyclictest0-21swapper22:50:060
19509910620153401,52763cyclictest0-21swapper19:42:520
19509910618153472,52709cyclictest0-21swapper20:01:470
19509910614353393,52750cyclictest0-21swapper19:38:410
19509910613953391,52748cyclictest0-21swapper20:09:300
19509910613053432,52698cyclictest0-21swapper20:41:290
19509910609953014,53083cyclictest0-21swapper21:10:070
19509910608253069,53010cyclictest28087-21ssh22:26:290
19509910607752993,53082cyclictest0-21swapper23:38:100
19509910598552930,53053cyclictest0-21swapper22:41:030
19509910566853066,52600cyclictest4764-21ssh21:53:300
1950995352425,0cyclictest0-21swapper21:30:030
1950995324427,0cyclictest0-21swapper22:14:060
1950995297330,45cyclictest0-21swapper00:32:150
19509925721090,1351cyclictest2277-21Xorg23:17:240
19509925031089,1316cyclictest4511-21ssh23:25:360
19509924701069,963cyclictest134850irq/9-eth000:14:500
19509924031057,1247cyclictest23880-21ssh23:55:050
19509923901043,1222cyclictest6547-21diskmemload22:34:210
19509923651017,1250cyclictest6547-21diskmemload22:24:280
19509922851100,1087cyclictest2099-21runrttasks21:17:190
19509921931038,1030cyclictest1907-21snmpd20:24:540
19509921301025,1068cyclictest6547-21diskmemload00:15:410
19509921121029,1042cyclictest22853-21ssh23:53:040
19509920911069,896cyclictest6547-21diskmemload00:37:570
1950992032992,1003cyclictest21246-21ssh22:16:360
19509920221007,981cyclictest0-21swapper23:02:390
19509920151049,839cyclictest2099-21runrttasks20:39:080
1950991979987,958cyclictest3950irq/9-acpi23:34:290
1950991972962,973cyclictest9394-21runrttasks19:57:460
1950991965947,983cyclictest0-21swapper20:50:210
19509919541032,801cyclictest0-21swapper19:48:130
19509919531016,845cyclictest0-21swapper20:47:310
19509919491077,466cyclictest9-21ksoftirqd/021:36:150
1950991946948,960cyclictest16090-21ssh23:43:210
19509919401038,808cyclictest0-21swapper21:56:200
19509919271035,799cyclictest0-21swapper21:48:280
1950991922952,956cyclictest0-21swapper21:44:270
19509919041037,776cyclictest0-21swapper21:02:250
1950991882914,931cyclictest14419-21ssh00:27:540
19509917461068,585cyclictest0-21swapper22:46:450
19509917171023,694cyclictest0-21swapper22:37:020
19509915741073,435cyclictest9-21ksoftirqd/019:54:150
19509915571002,459cyclictest0-21swapper20:59:140
1950991511930,544cyclictest28684-21ssh00:00:560
19509914961098,398cyclictest0-21swapper19:31:090
19509914941007,422cyclictest0-21swapper22:09:540
19509914881067,421cyclictest0-21swapper20:13:310
19509914881005,417cyclictest0-21swapper20:18:120
19509914711008,419cyclictest0-21swapper19:28:480
1950991397626,766cyclictest0-21swapper22:02:020
1950991124592,529cyclictest22358-21grep19:16:140
1950991107583,521cyclictest13575-21hwlatdetect-tra19:13:130
2187228433,25sleep00-21swapper19:05:300
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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