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2026-07-03 - 13:28
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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 Fri Jul 03, 2026 00:45:36)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
682521490,7sleep12028499cyclictest19:50:171
2028499740,3cyclictest3005-21/usr/sbin/munin19:40:221
2028499722,31cyclictest0-21swapper/123:00:271
20283996834,6cyclictest9-21ksoftirqd/000:05:290
20283996733,4cyclictest9-21ksoftirqd/000:20:000
20283996733,3cyclictest9-21ksoftirqd/000:35:010
20283996732,6cyclictest9-21ksoftirqd/023:20:290
134491670,5ptp4l9140-21taskset22:15:090
20283996431,6cyclictest9-21ksoftirqd/022:15:000
20283996329,5cyclictest9-21ksoftirqd/021:50:000
134491630,3ptp4l14991-21ls20:05:272
20283996232,4cyclictest9-21ksoftirqd/022:05:170
20283996230,6cyclictest9-21ksoftirqd/020:15:270
20283996230,5cyclictest9-21ksoftirqd/021:30:010
20283996226,6cyclictest9-21ksoftirqd/019:30:220
20283996130,4cyclictest9-21ksoftirqd/000:05:010
20283996128,5cyclictest9-21ksoftirqd/022:00:290
20283996127,5cyclictest9-21ksoftirqd/021:23:510
20283996126,5cyclictest9-21ksoftirqd/020:20:280
134491610,5ptp4l0-21swapper/121:45:181
20283996032,8cyclictest9-21ksoftirqd/019:25:230
20283996030,5cyclictest9-21ksoftirqd/022:25:220
20283996030,5cyclictest9-21ksoftirqd/021:10:200
20283996029,6cyclictest9-21ksoftirqd/023:05:010
20283996027,5cyclictest9-21ksoftirqd/023:35:200
20283996025,5cyclictest9-21ksoftirqd/000:35:200
20283996022,6cyclictest9-21ksoftirqd/022:35:270
20283995929,5cyclictest9-21ksoftirqd/021:40:130
20283995929,4cyclictest9-21ksoftirqd/023:00:270
20283995928,5cyclictest9-21ksoftirqd/020:35:150
20283995928,5cyclictest9-21ksoftirqd/019:40:270
20283995927,5cyclictest9-21ksoftirqd/022:50:260
20283995927,3cyclictest9-21ksoftirqd/020:00:280
20283995924,4cyclictest9-21ksoftirqd/020:45:180
134491590,5ptp4l24673-21ntp_states23:55:240
20283995827,5cyclictest9-21ksoftirqd/019:50:190
20283995826,5cyclictest9-21ksoftirqd/000:25:320
20283995823,5cyclictest9-21ksoftirqd/021:35:000
134491580,3ptp4l0-21swapper/119:09:141
20283995730,4cyclictest9-21ksoftirqd/020:05:270
20283995729,3cyclictest9-21ksoftirqd/022:59:260
20283995728,4cyclictest9-21ksoftirqd/021:55:270
20283995725,5cyclictest9-21ksoftirqd/022:45:170
20283995725,4cyclictest9-21ksoftirqd/021:05:000
20283995724,5cyclictest9-21ksoftirqd/019:20:190
20283995724,5cyclictest9-21ksoftirqd/019:20:190
20283995723,6cyclictest9-21ksoftirqd/023:45:280
134491570,4ptp4l0-21swapper/222:49:012
134491570,10ptp4l17811-21apt-get19:05:120
34862560,5sleep30-21swapper/322:00:273
20283995628,3cyclictest9-21ksoftirqd/020:50:270
20283995627,6cyclictest9-21ksoftirqd/000:20:160
20283995626,4cyclictest9-21ksoftirqd/020:43:430
20283995626,4cyclictest9-21ksoftirqd/020:43:430
20283995626,3cyclictest9-21ksoftirqd/019:20:000
20283995625,5cyclictest9-21ksoftirqd/023:35:000
20283995624,6cyclictest9-21ksoftirqd/019:10:250
20283995624,6cyclictest9-21ksoftirqd/000:10:170
20283995624,4cyclictest9-21ksoftirqd/020:12:220
20283995624,4cyclictest9-21ksoftirqd/020:12:220
20283995620,4cyclictest9-21ksoftirqd/023:45:000
134491560,3ptp4l0-21swapper/223:10:242
134491560,3ptp4l0-21swapper/221:04:362
134491560,3ptp4l0-21swapper/120:50:241
20283995525,5cyclictest9-21ksoftirqd/021:50:190
20283995523,3cyclictest9-21ksoftirqd/023:50:200
20283995522,6cyclictest9-21ksoftirqd/023:15:140
134491550,4ptp4l0-21swapper/121:29:561
20283995426,4cyclictest9-21ksoftirqd/019:45:290
20283995426,3cyclictest9-21ksoftirqd/019:39:490
20283995422,5cyclictest9-21ksoftirqd/023:10:120
20283995422,5cyclictest9-21ksoftirqd/021:05:220
20283995422,5cyclictest9-21ksoftirqd/020:55:130
20283995420,5cyclictest9-21ksoftirqd/021:30:270
134491540,11ptp4l0-21swapper/222:25:142
134491530,4ptp4l0-21swapper/223:01:592
2028699523,12cyclictest0-21swapper/320:20:143
2028699522,6cyclictest41-21ksoftirqd/300:25:303
20283995228,6cyclictest9-21ksoftirqd/020:25:200
20283995225,3cyclictest9-21ksoftirqd/019:55:130
20283995220,5cyclictest9-21ksoftirqd/022:25:010
134491520,4ptp4l0-21swapper/200:23:292
134491520,3ptp4l0-21swapper/223:45:422
2028699515,10cyclictest0-21swapper/321:00:263
2028699513,6cyclictest0-21swapper/323:55:233
2028699512,12cyclictest0-21swapper/319:47:353
2028499511,3cyclictest24524-21users20:25:261
134491510,3ptp4l0-21swapper/221:57:562
2028699504,8cyclictest0-21swapper/300:30:133
2028699502,7cyclictest0-21swapper/323:20:253
2028399504,3cyclictest9-21ksoftirqd/022:44:590
134491500,3ptp4l0-21swapper/323:29:473
2028699493,6cyclictest0-21swapper/320:15:143
2028699492,6cyclictest0-21swapper/300:10:173
2028699492,10cyclictest0-21swapper/300:20:133
2028499490,2cyclictest12063-21ls20:00:211
134491490,9ptp4l16074-21apt-get22:30:132
2028699486,12cyclictest0-21swapper/300:35:273
2028699485,12cyclictest0-21swapper/319:10:243
2028699483,6cyclictest0-21swapper/323:03:413
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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