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2026-11-15 - 04:03
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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 376 highest latencies:
System rack6slot5.osadl.org (updated Sun Nov 15, 2026 00:43:45)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
10049996805031,4639cyclictest31392-21kworker/0:022:18:350
10049994675021,4442cyclictest11873-21kworker/0:120:44:270
10049991194764,4345cyclictest20627-21kworker/0:019:19:260
10049990934651,4438cyclictest11873-21kworker/0:119:46:320
10049990214488,4519cyclictest14146-21kworker/0:223:39:440
10049988634535,4324cyclictest11873-21kworker/0:120:01:430
10049987964386,4396cyclictest6645-21kworker/0:023:14:530
10049986864310,4363cyclictest20627-21kworker/0:019:32:360
10049982944173,4078cyclictest11873-21kworker/0:120:57:140
10049980644088,3935cyclictest11873-21kworker/0:119:44:560
10049980004289,3697cyclictest17693-21kworker/0:221:32:030
10049979564365,3577cyclictest11873-21kworker/0:120:11:420
10049974883987,3450cyclictest20627-21kworker/0:019:27:080
10049973903641,3708cyclictest11873-21kworker/0:120:09:240
10049972863897,3339cyclictest11873-21kworker/0:119:38:250
10049971653883,3272cyclictest20627-21kworker/0:019:23:390
10049970053454,3509cyclictest11873-21kworker/0:120:22:120
10049968003480,3306cyclictest20627-21kworker/0:019:14:030
10049967103287,3409cyclictest11873-21kworker/0:119:51:580
10049967053619,3072cyclictest31392-21kworker/0:021:49:050
10049966313401,3208cyclictest21805-21kworker/0:122:44:360
10049965973492,3091cyclictest31392-21kworker/0:021:51:030
10049965533580,2969cyclictest11873-21kworker/0:120:33:330
10049964493469,2929cyclictest27133-21kworker/0:223:58:580
10049964183459,2908cyclictest17693-21kworker/0:221:29:110
10049962813164,3030cyclictest7550-21kworker/0:200:27:450
10049960843231,2838cyclictest27133-21kworker/0:200:00:510
4392777185,202sleep00-21swapper19:06:060
10049955881,237cyclictest14169-21diskmemload23:49:340
10049948735,439cyclictest27751-21ssh22:46:100
10049948733,440cyclictest11673-21ssh00:30:510
10049948633,440cyclictest5235-21ssh00:18:490
10049948533,439cyclictest16581-21ssh22:23:280
10049948433,438cyclictest27821-21ssh21:38:150
10049948433,438cyclictest11608-21ssh22:13:060
10049948432,439cyclictest2547-21ssh00:12:090
10049946934,435cyclictest0-21swapper23:02:510
10049946734,433cyclictest0-21swapper20:39:280
10049946535,370cyclictest14169-21diskmemload22:39:250
10049946234,415cyclictest17860-21strings22:25:560
10049944555,204cyclictest13947-21ssh00:36:190
10049941356,344cyclictest30386-21kworker/u2:022:59:280
10049941353,346cyclictest14169-21diskmemload22:00:350
10049941352,347cyclictest14169-21diskmemload21:10:210
10049941254,344cyclictest14169-21diskmemload21:16:360
10049940951,344cyclictest14169-21diskmemload23:25:410
10049940934,362cyclictest4348-21ssh21:56:210
10049940856,291cyclictest5726-21ls00:20:170
10049940815,214cyclictest21472-21ssh23:43:450
10049940721,87cyclictest31374-21ntp_states00:05:210
10049940634,359cyclictest27616-21kworker/u2:322:08:550
10049940452,118cyclictest16189-21runrttasks23:32:010
10049940433,358cyclictest24100-21munin-node23:50:130
10049940432,358cyclictest4481-21ssh23:06:380
10049940254,289cyclictest9500-21apt-get23:17:250
10049940131,357cyclictest20104-21strings22:31:000
10049940052,289cyclictest11253-21ssh23:21:070
10049939672,311cyclictest30836-21date22:55:040
10049939635,361cyclictest0-21swapper21:42:130
10049939374,306cyclictest14169-21diskmemload21:21:020
10049939132,346cyclictest0-21swapper20:45:470
10049938736,347cyclictest11873-21kworker/0:120:26:040
10049938734,340cyclictest13210-21strings21:05:390
10049938733,339cyclictest7605-21strings20:50:400
10049938330,293cyclictest26078-21munin-node20:15:190
10049938034,346cyclictest0-21swapper19:55:150
10049935838,320cyclictest0-21swapper21:02:400
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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