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2025-11-23 - 05:34
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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 Nov 23, 2025 00:44:53)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
39047012250180,53sleep10-21swapper/119:09:101
39046942244201,28sleep00-21swapper/019:09:030
40660062630,4sleep04066005-21seq23:48:330
40796712580,6sleep10-21swapper/100:07:461
40040532580,4sleep14003883-40apt-check22:20:081
40902942550,5sleep04090276-21python300:25:010
125899550,3rtkit-daemon1257-21rtkit-daemon21:16:401
390489799543,11cyclictest4056459-21apt-get23:35:131
125899510,4rtkit-daemon1257-21rtkit-daemon00:12:281
125899510,4rtkit-daemon1257-21rtkit-daemon00:09:250
125899500,4rtkit-daemon1257-21rtkit-daemon22:34:300
125899500,4rtkit-daemon1257-21rtkit-daemon19:59:460
125899480,4rtkit-daemon1257-21rtkit-daemon20:49:571
40849762440,2sleep00-21swapper/000:15:490
125899440,7rtkit-daemon3960270-21sh21:18:200
125899430,14rtkit-daemon0-21swapper/120:52:091
125899420,5rtkit-daemon4032239-21/usr/sbin/munin23:00:141
40467722410,4chrt4045921-21/usr/sbin/munin23:20:231
125899410,5rtkit-daemon3990433-21ntpq22:00:211
125899390,3rtkit-daemon0-21swapper/119:52:321
125899390,3rtkit-daemon0-21swapper/020:14:010
125899380,5rtkit-daemon1257-21rtkit-daemon22:36:160
125899370,3rtkit-daemon0-21swapper/121:35:311
125899370,3rtkit-daemon0-21swapper/121:14:451
125899360,4rtkit-daemon1257-21rtkit-daemon23:56:540
125899360,4rtkit-daemon1257-21rtkit-daemon23:41:141
125899360,4rtkit-daemon1257-21rtkit-daemon21:25:481
125899360,4rtkit-daemon1257-21rtkit-daemon00:27:031
125899360,4rtkit-daemon1257-21rtkit-daemon00:22:101
125899360,3rtkit-daemon1257-21rtkit-daemon23:27:501
125899360,3rtkit-daemon0-21swapper/123:05:511
125899360,3rtkit-daemon0-21swapper/119:42:360
125899360,3rtkit-daemon0-21swapper/119:37:470
390489799352,10cyclictest3936206-21apt-get20:25:141
125899350,5rtkit-daemon3926576-21sed20:00:211
125899350,4rtkit-daemon1257-21rtkit-daemon23:29:450
125899350,4rtkit-daemon1257-21rtkit-daemon00:31:111
125899340,4rtkit-daemon1257-21rtkit-daemon21:53:250
125899340,4rtkit-daemon1257-21rtkit-daemon20:37:330
125899340,3rtkit-daemon0-21swapper/121:57:440
125899340,3rtkit-daemon0-21swapper/120:09:301
125899340,3rtkit-daemon0-21swapper/020:12:041
125899330,4rtkit-daemon1257-21rtkit-daemon22:17:480
125899330,4rtkit-daemon1257-21rtkit-daemon21:05:431
125899330,4rtkit-daemon1257-21rtkit-daemon20:29:030
125899330,4rtkit-daemon1257-21rtkit-daemon19:47:241
125899330,3rtkit-daemon0-21swapper/120:55:090
125899330,3rtkit-daemon0-21swapper/119:46:070
125899330,3rtkit-daemon0-21swapper/019:20:471
125899330,3rtkit-daemon0-21swapper/019:16:381
125899330,1rtkit-daemon1257-21rtkit-daemon23:24:200
390489799323,9cyclictest3934253-21apt-get20:20:171
125899320,4rtkit-daemon4043337-21ntp_states23:15:221
125899320,4rtkit-daemon1257-21rtkit-daemon22:53:580
125899320,3rtkit-daemon1257-21rtkit-daemon20:23:440
40186092310,3chrt0-21swapper/022:40:180
125899310,3rtkit-daemon0-21swapper/123:40:100
125899310,3rtkit-daemon0-21swapper/119:54:040
125899310,3rtkit-daemon0-21swapper/119:28:110
125899310,3rtkit-daemon0-21swapper/023:47:011
125899310,3rtkit-daemon0-21swapper/021:42:111
125899310,3rtkit-daemon0-21swapper/000:39:301
125899300,4rtkit-daemon1257-21rtkit-daemon21:25:070
125899300,4rtkit-daemon1257-21rtkit-daemon20:56:081
125899300,3rtkit-daemon0-21swapper/122:59:310
125899300,3rtkit-daemon0-21swapper/122:06:020
125899300,3rtkit-daemon0-21swapper/121:22:200
125899300,3rtkit-daemon0-21swapper/120:53:410
125899300,3rtkit-daemon0-21swapper/119:24:100
125899300,3rtkit-daemon0-21swapper/023:51:321
125899300,3rtkit-daemon0-21swapper/023:10:311
125899300,3rtkit-daemon0-21swapper/022:46:211
125899300,3rtkit-daemon0-21swapper/022:33:031
125899300,3rtkit-daemon0-21swapper/022:12:441
125899300,3rtkit-daemon0-21swapper/021:53:321
125899300,3rtkit-daemon0-21swapper/021:45:481
125899300,3rtkit-daemon0-21swapper/020:37:411
125899290,3rtkit-daemon0-21swapper/123:36:260
125899290,3rtkit-daemon0-21swapper/121:14:250
125899290,3rtkit-daemon0-21swapper/023:55:561
125899290,3rtkit-daemon0-21swapper/023:31:171
125899290,3rtkit-daemon0-21swapper/022:54:271
125899290,3rtkit-daemon0-21swapper/022:41:501
125899290,3rtkit-daemon0-21swapper/020:17:441
125899290,18rtkit-daemon0-21swapper/023:10:110
390489399284,2cyclictest141rcu_preempt22:20:250
3904893992822,4cyclictest4097071-21chrt00:33:090
390489399280,9cyclictest39450682cat20:45:240
125899280,4rtkit-daemon0-21swapper/119:31:510
125899280,3rtkit-daemon0-21swapper/022:36:301
125899280,3rtkit-daemon0-21swapper/022:15:061
125899270,4rtkit-daemon1257-21rtkit-daemon00:03:481
125899270,1rtkit-daemon1257-21rtkit-daemon23:51:250
125899270,1rtkit-daemon1257-21rtkit-daemon22:11:130
125899270,1rtkit-daemon1257-21rtkit-daemon21:30:501
125899270,1rtkit-daemon1257-21rtkit-daemon19:36:481
125899270,14rtkit-daemon0-21swapper/021:45:120
3904897992611,10cyclictest4007462-21apt-get22:25:151
3904893992610,10cyclictest4009141-1kworker/u9:223:00:110
390489399252,16cyclictest3938152-21apt-get20:30:120
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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