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2025-12-07 - 03:48
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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 100 highest latencies:
System rackcslot4.osadl.org (updated Sun Dec 07, 2025 00:44:53)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
28670542276221,40sleep00-21swapper/019:06:320
28665802255180,20sleep10-21swapper/119:05:311
29417992810,1chrt2941798-21unin-run21:45:011
2867518995617,21cyclictest2887977-21apt-get20:00:060
2867518995519,12cyclictest2998748-21apt-get23:05:130
30554292540,6sleep0161rcuc/000:25:100
30210122530,13sleep013-21ksoftirqd/023:35:190
2867521995312,23cyclictest3006701-21apt-get23:15:171
2867518995318,11cyclictest2916325-21diskmemload23:13:440
2867518995317,9cyclictest1-21systemd20:30:020
2867518995219,11cyclictest2932738-21ssh21:30:480
2867518995219,10cyclictest3014931-21ssh23:25:240
2867518995217,11cyclictest3035178-21apt-get23:55:120
2867518995216,21cyclictest3048469-21apt-get00:15:150
2867518995215,20cyclictest3059025-21apt-get00:30:150
2867518995214,12cyclictest2928731-21sensors21:25:250
2867521995116,21cyclictest2933976-21ssh21:33:421
2867521995111,22cyclictest2914567-21apt-get21:05:161
2867518995119,11cyclictest2916325-21diskmemload21:53:590
2867518995117,11cyclictest885374-21snapd22:54:300
2867518995116,18cyclictest3029940-21taskset23:47:350
2867518995115,24cyclictest2916325-21diskmemload22:49:030
2867518995115,20cyclictest3024150-21apt-get23:40:120
2867518995115,12cyclictest2963382-21apt-get22:15:140
2867521995016,21cyclictest3060721-21ssh00:31:171
2867521995012,21cyclictest2981074-21apt-get22:40:141
2867518995018,13cyclictest2958881-21taskset22:08:280
2867518995018,12cyclictest2868801-21/usr/sbin/munin19:10:250
2867518995015,22cyclictest3048251-21munin-run00:14:590
2867518995014,21cyclictest3051829-21apt-get00:20:150
2867518995014,21cyclictest2934838-21apt-get21:35:120
2867518995014,17cyclictest2997808-21ssh23:03:200
2867521994915,21cyclictest3016313-21ssh23:28:381
2867521994910,21cyclictest2973959-21apt-get22:30:131
2867518994917,20cyclictest2898008-21taskset20:23:120
2867518994916,19cyclictest3017170-21apt-get23:30:130
2867518994915,20cyclictest2952855-21apt-get22:00:160
2867518994915,12cyclictest2991853-40apt-check22:55:110
2867518994914,20cyclictest2916603-21apt-get21:10:160
2867518994913,21cyclictest2966877-21apt-get22:20:150
2867518994913,20cyclictest2938504-21apt-get21:40:140
2867518994912,18cyclictest0-21swapper/022:34:310
286752199488,11cyclictest2914378-21munin-run21:05:001
2867521994816,18cyclictest2997159-21ssh23:01:401
2867521994815,19cyclictest3057420-21ssh00:26:571
2867521994815,19cyclictest3054845-21ssh00:24:141
2867521994814,19cyclictest2926701-21ssh21:23:171
2867521994811,14cyclictest2908650-40apt-check20:50:241
2867521994810,22cyclictest2900351-21apt-get20:30:151
2867521994810,13cyclictest2916325-21diskmemload22:11:451
2867518994818,13cyclictest2972063-21taskset22:26:140
2867518994818,11cyclictest2906205-21/usr/sbin/munin20:45:220
2867518994818,10cyclictest2961325-21ssh22:10:580
2867518994818,10cyclictest2879567-21unixbench-2d19:35:240
2867518994817,9cyclictest1-21systemd21:05:010
2867518994817,10cyclictest3007386-21ssh23:15:240
2867518994815,20cyclictest2886853-21sed19:55:210
2867518994815,19cyclictest2916325-21diskmemload00:04:210
2867518994814,22cyclictest2874660-21sed19:25:210
2867518994814,12cyclictest2942021-21apt-get21:45:130
2867518994814,12cyclictest2875845-21apt-get19:30:010
2867518994814,11cyclictest3010331-21df_inode23:20:170
286752199479,20cyclictest2875845-21apt-get19:30:061
2867521994716,18cyclictest2952302-21ssh21:59:231
2867521994716,12cyclictest2916325-21diskmemload00:14:301
2867521994715,19cyclictest2995035-21ssh22:59:551
2867521994715,18cyclictest2916325-21diskmemload22:20:071
2867521994714,18cyclictest2916325-21diskmemload23:52:421
2867521994714,17cyclictest2916325-21diskmemload21:18:361
2867521994713,19cyclictest2916325-21diskmemload22:46:231
2867521994710,20cyclictest2906223-21apt-get20:45:161
2867518994717,13cyclictest2896109-21seq20:18:580
2867518994717,10cyclictest2892110-21taskset20:08:000
2867518994716,11cyclictest2885655-21seq19:51:120
2867518994715,18cyclictest2916325-21diskmemload21:58:550
2867518994715,18cyclictest2916325-21diskmemload00:07:010
2867518994714,21cyclictest3062482-21apt-get00:35:110
2867518994714,19cyclictest2916325-21diskmemload22:36:220
2867518994714,18cyclictest2916325-21diskmemload22:41:510
2867518994714,18cyclictest2916325-21diskmemload21:21:360
2867518994714,18cyclictest2916325-21diskmemload21:15:040
2867518994714,18cyclictest2908650-40apt-check20:50:170
286752199469,11cyclictest2953887-21sendmail_mailtr22:00:261
286752199468,21cyclictest2977498-21apt-get22:35:111
2867521994618,10cyclictest3037083-21ssh23:56:461
2867521994616,18cyclictest3040997-21ssh00:02:401
2867521994614,17cyclictest2938017-21ssh21:39:371
2867521994613,21cyclictest2929289-21ssh21:26:051
2867521994613,18cyclictest2916325-21diskmemload21:12:211
2867521994613,11cyclictest2916325-21diskmemload23:39:421
2867521994610,21cyclictest2987923-21apt-get22:50:131
2867521994610,20cyclictest3001964-21apt-get23:10:071
2867521994610,20cyclictest2945591-21apt-get21:50:151
2867518994615,14cyclictest2902862-21sed20:35:190
2867518994614,20cyclictest2911418-21ntpq20:55:240
2867518994613,10cyclictest2871921-21/usr/sbin/munin19:20:010
2867518994613,10cyclictest1-21systemd21:10:010
2867518994612,19cyclictest0-21swapper/020:42:410
2867521994514,17cyclictest2916325-21diskmemload23:23:131
2867521994513,18cyclictest2916325-21diskmemload23:48:051
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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