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2026-05-03 - 13:45
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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 rackdslot1.osadl.org (updated Sun May 03, 2026 00:45:37)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
854821400,6sleep22442999cyclictest23:15:112
627721320,6sleep22442999cyclictest23:10:142
134491780,3ptp4l0-21swapper/020:15:070
220972630,5sleep30-21swapper/319:05:123
134491590,4ptp4l0-21swapper/000:10:160
134491580,4ptp4l0-21swapper/023:10:170
134491580,3ptp4l0-21swapper/023:40:010
134491570,4ptp4l0-21swapper/100:05:181
134491570,4ptp4l0-21swapper/023:00:240
134491570,3ptp4l0-21swapper/119:30:411
134491570,3ptp4l0-21swapper/019:15:160
134491570,3ptp4l0-21swapper/019:15:160
134491570,21ptp4l25-21ksoftirqd/120:10:161
120402570,5sleep012042-21awk21:00:250
134491560,5ptp4l0-21swapper/023:55:110
134491560,3ptp4l30225-21meminfo00:00:190
134491560,3ptp4l0-21swapper/120:15:221
134491560,16ptp4l0-21swapper/020:05:230
134491550,9ptp4l0-21swapper/223:51:122
134491550,4ptp4l30773-21taskset19:20:370
134491550,4ptp4l0-21swapper/000:31:000
134491550,12ptp4l0-21swapper/122:30:251
134491550,12ptp4l0-21swapper/023:30:150
134491540,4ptp4l0-21swapper/219:46:522
134491540,4ptp4l0-21swapper/021:30:200
134491540,4ptp4l0-21swapper/019:37:110
134491540,4ptp4l0-21swapper/019:13:560
134491540,3ptp4l0-21swapper/122:40:191
157782530,37sleep09-21ksoftirqd/022:20:180
157782530,37sleep09-21ksoftirqd/022:20:170
134691520,9getstats0-21swapper/320:45:173
134491520,5ptp4l0-21swapper/219:06:022
134491520,5ptp4l0-21swapper/119:09:561
134491520,4ptp4l0-21swapper/220:18:372
134491520,4ptp4l0-21swapper/021:55:350
134491520,4ptp4l0-21swapper/020:28:170
134491520,4ptp4l0-21swapper/000:24:360
134491520,4ptp4l0-21swapper/000:17:040
134491520,3ptp4l0-21swapper/020:50:130
134491510,5ptp4l0-21swapper/221:33:152
134491510,4ptp4l0-21swapper/223:37:202
134491510,4ptp4l0-21swapper/220:13:142
134491510,4ptp4l0-21swapper/023:22:050
134491510,4ptp4l0-21swapper/022:05:420
134491510,3ptp4l0-21swapper/023:15:380
134491500,4ptp4l0-21swapper/319:40:183
134491500,4ptp4l0-21swapper/223:09:302
134491500,4ptp4l0-21swapper/222:14:062
134491500,4ptp4l0-21swapper/221:56:502
134491500,4ptp4l0-21swapper/221:37:202
134491500,4ptp4l0-21swapper/221:29:192
134491500,4ptp4l0-21swapper/221:10:572
134491500,4ptp4l0-21swapper/220:43:582
134491500,4ptp4l0-21swapper/023:27:370
134491500,4ptp4l0-21swapper/021:27:450
134491500,4ptp4l0-21swapper/021:08:160
134491500,4ptp4l0-21swapper/000:06:480
134491500,3ptp4l0-21swapper/321:21:333
134491500,3ptp4l0-21swapper/321:21:333
134491500,3ptp4l0-21swapper/100:29:451
134491500,3ptp4l0-21swapper/020:10:380
134491490,4ptp4l0-21swapper/321:17:403
134491490,4ptp4l0-21swapper/223:48:362
134491490,4ptp4l0-21swapper/222:40:542
134491490,4ptp4l0-21swapper/122:16:331
134491490,4ptp4l0-21swapper/023:52:360
134491490,4ptp4l0-21swapper/022:47:290
134491490,4ptp4l0-21swapper/019:57:360
134491490,3ptp4l0-21swapper/023:37:570
134491490,3ptp4l0-21swapper/021:52:530
134491490,3ptp4l0-21swapper/021:52:530
2442999481,2cyclictest7347-21/usr/sbin/munin00:20:192
2442899481,46cyclictest17475-21kworker/1:220:22:581
134491480,4ptp4l0-21swapper/319:47:213
134491480,4ptp4l0-21swapper/222:15:492
134491480,4ptp4l0-21swapper/200:09:282
134491480,4ptp4l0-21swapper/021:15:030
134491480,11ptp4l0-21swapper/100:04:131
134491470,4ptp4l0-21swapper/019:53:370
134491470,3ptp4l0-21swapper/022:55:220
134491470,2ptp4l0-21swapper/020:30:170
134491460,4ptp4l0-21swapper/222:08:542
134491460,3ptp4l401ktimersoftd/320:00:153
134491460,27ptp4l0-21swapper/219:40:202
24428994514,29cyclictest0-21swapper/122:14:581
134491450,4ptp4l0-21swapper/220:21:122
134491450,4ptp4l0-21swapper/219:55:062
134491450,4ptp4l0-21swapper/022:19:450
134491450,3ptp4l0-21swapper/023:48:260
134491450,10ptp4l0-21swapper/319:58:433
2442999441,42cyclictest0-21swapper/200:29:592
2442999441,1cyclictest0-21swapper/219:30:192
134491440,9ptp4l0-21swapper/223:24:492
134491440,9ptp4l0-21swapper/220:26:362
134491440,9ptp4l0-21swapper/200:01:292
134491440,6ptp4l24392-21calmdown-rtkit19:10:011
134491440,4ptp4l26755-21apt-get19:15:122
134491440,4ptp4l26755-21apt-get19:15:122
134491440,4ptp4l0-21swapper/022:03:110
134491440,10ptp4l0-21swapper/119:19:531
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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