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2026-06-21 - 01:10
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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 50 highest latencies:
System rackcslot4.osadl.org (updated Sat Jun 20, 2026 12:44:55)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
6114912268226,28sleep00-21swapper/007:09:010
6115812250210,25sleep10-21swapper/107:09:581
6980552680,2sleep00-21swapper/010:00:240
611721996011,21cyclictest656589-1kworker/1:1H09:25:011
179699590,12rtkit-daemon1795-21rtkit-daemon07:46:391
611721995317,15cyclictest770856-21ssh11:40:341
611721995315,19cyclictest649881-21python308:45:011
611721995219,8cyclictest671496-21apt-get09:25:161
611721995217,19cyclictest664163-21apt-get09:15:141
611721995217,14cyclictest749917-21ssh11:11:471
179699520,4rtkit-daemon1795-21rtkit-daemon10:17:450
179699520,3rtkit-daemon1795-21rtkit-daemon11:06:241
611721995118,11cyclictest732936-21python310:50:021
179699510,4rtkit-daemon1795-21rtkit-daemon07:19:441
7449452500,9sleep013-21ksoftirqd/011:05:200
611721995018,10cyclictest697850-21/usr/sbin/munin10:00:231
611721995017,13cyclictest757293-21ssh11:22:251
611721995017,13cyclictest757293-21ssh11:22:251
611721995017,11cyclictest694488-21/usr/sbin/munin09:55:241
611721995016,12cyclictest711497-21apt-get10:20:141
179699500,3rtkit-daemon1795-21rtkit-daemon09:06:320
611721994918,14cyclictest703864-21ssh10:09:431
611721994917,13cyclictest796071-21/usr/sbin/munin12:15:241
611721994917,13cyclictest753546-21ssh11:17:091
611721994916,13cyclictest764870-21chrt11:33:471
611721994916,11cyclictest660034-21diskmemload12:05:271
611721994915,11cyclictest660034-21diskmemload10:40:131
179699490,4rtkit-daemon1795-21rtkit-daemon08:23:061
611721994818,10cyclictest799533-21threads12:20:241
611721994818,10cyclictest782862-21chrt11:57:481
611721994817,11cyclictest660034-21diskmemload09:12:361
611721994816,12cyclictest645856-21chrt08:34:201
179699480,6rtkit-daemon791207-21apt-get12:10:121
179699480,3rtkit-daemon1795-21rtkit-daemon11:49:080
611721994718,10cyclictest660034-21diskmemload12:25:521
611721994716,14cyclictest719425-21ntpq10:30:211
611721994716,11cyclictest807468-21chrt12:31:321
611721994715,11cyclictest660034-21diskmemload09:30:261
611721994714,14cyclictest628637-21grep07:50:141
611721994713,10cyclictest737127-21apt-get10:55:121
611721994712,11cyclictest660034-21diskmemload10:18:251
179699470,4rtkit-daemon1795-21rtkit-daemon08:05:421
6837512460,3sleep10-21swapper/109:40:261
611721994617,10cyclictest730594-21/usr/sbin/munin10:45:231
611721994616,10cyclictest660034-21diskmemload11:02:031
611721994614,12cyclictest773431-21apt-get11:45:101
611721994613,12cyclictest765689-21apt-get11:35:141
611721994613,11cyclictest758699-21apt-get11:25:131
611721994612,12cyclictest660034-21diskmemload09:49:211
179699460,4rtkit-daemon1795-21rtkit-daemon08:00:111
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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