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2026-04-28 - 07:45
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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 Tue Apr 28, 2026 00:45:45)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2799221380,3sleep10-21swapper/123:15:211
134491680,4ptp4l0-21swapper/223:30:152
230562670,4sleep20-21swapper/223:05:192
134491650,3ptp4l22285-21iostat_ios19:35:190
134491600,16ptp4l0-21swapper/020:15:160
134491600,16ptp4l0-21swapper/020:15:160
134491580,3ptp4l3554-21apt-get21:15:140
134491580,3ptp4l0-21swapper/200:25:272
134491580,3ptp4l0-21swapper/119:30:231
134491580,3ptp4l0-21swapper/022:55:110
134491580,3ptp4l0-21swapper/021:20:160
134491570,5ptp4l9776-21runrttasks19:09:163
134491570,5ptp4l0-21swapper/023:55:270
134491550,4ptp4l0-21swapper/320:40:283
134491550,4ptp4l0-21swapper/022:15:170
134491550,3ptp4l0-21swapper/023:31:460
134491550,3ptp4l0-21swapper/000:37:400
134491550,3ptp4l0-21swapper/000:37:400
134491540,4ptp4l0-21swapper/022:24:420
134491540,4ptp4l0-21swapper/019:33:360
134491530,4ptp4l0-21swapper/119:20:261
134491530,3ptp4l0-21swapper/320:25:263
134491530,3ptp4l0-21swapper/219:31:102
134491530,3ptp4l0-21swapper/020:28:390
196802520,5sleep30-21swapper/300:05:293
196802520,5sleep30-21swapper/300:05:293
134491520,5ptp4l0-21swapper/021:40:220
134491520,4ptp4l0-21swapper/322:12:293
134491520,4ptp4l0-21swapper/221:11:042
134491520,3ptp4l0-21swapper/220:01:022
134491520,3ptp4l0-21swapper/120:30:261
134491520,3ptp4l0-21swapper/021:06:590
134491520,3ptp4l0-21swapper/000:13:450
134491510,4ptp4l0-21swapper/223:51:372
134491510,4ptp4l0-21swapper/222:45:362
134491510,4ptp4l0-21swapper/222:32:352
134491510,4ptp4l0-21swapper/221:05:422
134491510,4ptp4l0-21swapper/200:33:512
134491510,4ptp4l0-21swapper/023:07:570
134491510,4ptp4l0-21swapper/021:45:340
134491510,3ptp4l0-21swapper/221:46:442
134491510,18ptp4l25-21ksoftirqd/122:36:091
134491510,17ptp4l9-21ksoftirqd/000:16:340
134491510,17ptp4l25-21ksoftirqd/119:57:031
134491500,6ptp4l0-21swapper/219:08:302
134491500,4ptp4l0-21swapper/221:50:442
134491500,4ptp4l0-21swapper/220:32:172
134491500,4ptp4l0-21swapper/220:28:042
134491500,4ptp4l0-21swapper/219:59:172
134491500,4ptp4l0-21swapper/200:19:172
134491500,4ptp4l0-21swapper/023:10:370
134491500,4ptp4l0-21swapper/019:54:240
134491500,3ptp4l0-21swapper/220:39:122
134491490,4ptp4l0-21swapper/323:14:343
134491490,4ptp4l0-21swapper/320:55:283
134491490,4ptp4l0-21swapper/223:22:122
134491490,4ptp4l0-21swapper/222:21:462
134491490,4ptp4l0-21swapper/023:52:480
134491490,4ptp4l0-21swapper/020:41:550
134491490,3ptp4l0-21swapper/200:20:312
134491480,4ptp4l10107-21apt-get20:20:102
134491480,4ptp4l0-21swapper/322:57:333
134491480,4ptp4l0-21swapper/223:27:342
134491480,4ptp4l0-21swapper/019:28:230
134491480,3ptp4l0-21swapper/323:15:173
134491480,3ptp4l0-21swapper/222:16:242
134491480,3ptp4l0-21swapper/021:27:340
134491470,5ptp4l0-21swapper/022:40:120
134491470,4ptp4l0-21swapper/022:14:140
134491470,3ptp4l0-21swapper/000:31:040
134491470,10ptp4l41-21ksoftirqd/322:33:373
134491460,4ptp4l0-21swapper/322:27:153
134491460,4ptp4l0-21swapper/022:03:450
134491460,3ptp4l0-21swapper/020:58:420
134491460,3ptp4l0-21swapper/020:30:440
134491460,11ptp4l0-21swapper/221:15:172
134491450,4ptp4l0-21swapper/123:48:131
134491450,3ptp4l241ktimersoftd/119:45:211
134491450,3ptp4l241ktimersoftd/119:45:211
134491450,3ptp4l0-21swapper/220:48:322
134491450,10ptp4l0-21swapper/321:00:553
134491440,9ptp4l0-21swapper/321:44:493
134491440,9ptp4l0-21swapper/321:24:503
134491440,9ptp4l0-21swapper/321:15:393
134491440,6ptp4l8380-21df21:25:142
134491440,4ptp4l10155-21apt-get19:10:122
134491440,4ptp4l0-21swapper/323:25:143
134491440,3ptp4l0-21swapper/223:00:172
134491440,3ptp4l0-21swapper/220:06:532
134491440,3ptp4l0-21swapper/020:21:550
134491440,2ptp4l0-21swapper/123:38:221
134491440,10ptp4l0-21swapper/219:24:132
134491430,9ptp4l0-21swapper/322:04:293
134491430,9ptp4l0-21swapper/320:30:093
134491430,9ptp4l0-21swapper/319:50:363
134491430,5ptp4l0-21swapper/320:05:193
134491430,4ptp4l22821-21ls20:45:213
134491430,4ptp4l0-21swapper/323:52:223
134491430,4ptp4l0-21swapper/000:03:160
134491430,3ptp4l0-21swapper/121:09:251
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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