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2026-07-07 - 07:41
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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 Jul 07, 2026 00:45:38)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
526622420,3sleep20-21swapper/219:09:402
506121970,4sleep00-21swapper/019:08:560
1228421930,4sleep10-21swapper/119:06:461
1973821910,7sleep319749-21sh19:09:153
36521450,5sleep21522799cyclictest21:00:162
15228996811,18cyclictest22924-21cron20:39:593
15225996426,6cyclictest9-21ksoftirqd/020:25:010
15225996326,6cyclictest9-21ksoftirqd/019:35:000
15225996230,4cyclictest9-21ksoftirqd/020:05:000
15225996129,3cyclictest9-21ksoftirqd/020:20:010
15228996011,11cyclictest13403-21taskset20:18:443
15225996023,5cyclictest9-21ksoftirqd/023:40:000
1522899598,9cyclictest7029-21taskset23:34:333
15225995923,6cyclictest9-21ksoftirqd/021:20:000
15225995921,6cyclictest9-21ksoftirqd/021:50:280
134491590,4ptp4l0-21swapper/122:49:011
134491590,4ptp4l0-21swapper/019:25:330
1522899589,10cyclictest14418-21taskset23:50:043
1522899588,11cyclictest6693-21taskset21:14:113
1522899587,16cyclictest0-21swapper/300:38:433
1522899587,12cyclictest17892-21chrt19:19:403
1522899587,12cyclictest13701-21chrt22:35:533
1522899586,10cyclictest20416-21runrttasks20:32:143
15225995828,6cyclictest9-21ksoftirqd/022:50:170
15225995826,6cyclictest9-21ksoftirqd/021:35:270
15225995825,6cyclictest9-21ksoftirqd/020:05:290
15225995822,6cyclictest9-21ksoftirqd/022:10:230
134491580,4ptp4l0-21swapper/122:39:561
134491580,3ptp4l0-21swapper/023:30:250
134491580,3ptp4l0-21swapper/022:15:170
1522899579,11cyclictest2522-21taskset00:32:023
1522899577,16cyclictest32391-21chrt22:08:253
1522899577,16cyclictest0-21swapper/322:12:203
15228995710,11cyclictest6914-21taskset22:22:123
15225995726,5cyclictest9-21ksoftirqd/021:30:240
15225995725,5cyclictest9-21ksoftirqd/020:50:280
15225995723,6cyclictest9-21ksoftirqd/020:10:140
15225995721,7cyclictest9-21ksoftirqd/023:40:180
15225995720,6cyclictest9-21ksoftirqd/000:30:250
134491570,3ptp4l0-21swapper/320:13:013
134491570,3ptp4l0-21swapper/121:59:011
134491570,3ptp4l0-21swapper/121:16:581
134491570,3ptp4l0-21swapper/019:11:380
1522899569,17cyclictest15551-21sendmail-mta19:14:063
1522899568,18cyclictest3907-21chrt19:57:483
1522899568,11cyclictest9381-21chrt22:29:203
1522899567,17cyclictest1347-21chrt19:51:063
1522899566,11cyclictest27217-21runrttasks20:45:553
1522899566,11cyclictest20635-21taskset22:51:103
15228995610,11cyclictest22809-21taskset21:46:253
1522799565,13cyclictest0-21swapper/222:10:102
15225995627,6cyclictest9-21ksoftirqd/019:45:000
15225995625,6cyclictest9-21ksoftirqd/022:05:150
15225995625,4cyclictest9-21ksoftirqd/022:40:210
15225995624,7cyclictest9-21ksoftirqd/022:00:290
15225995624,3cyclictest9-21ksoftirqd/021:05:180
15225995623,5cyclictest9-21ksoftirqd/021:45:150
15225995622,5cyclictest9-21ksoftirqd/022:35:270
15225995621,8cyclictest9-21ksoftirqd/019:15:130
15225995619,6cyclictest9-21ksoftirqd/023:50:160
134491560,3ptp4l0-21swapper/023:57:070
1522899559,11cyclictest4542-21taskset23:27:113
1522899558,16cyclictest4807-21chrt22:19:493
1522899557,17cyclictest6170-21chrt20:02:053
1522899557,17cyclictest32122-21chrt20:59:543
1522899557,17cyclictest15909-21chrt20:23:183
1522899557,12cyclictest24646-21taskset19:32:413
1522899556,16cyclictest25243-21taskset20:44:593
1522899553,18cyclictest11686-21apt-get23:45:013
1522899553,18cyclictest11686-21apt-get23:45:013
1522799555,6cyclictest0-21swapper/222:30:252
1522799550,2cyclictest137891phc2sys21:05:182
15225995525,8cyclictest9-21ksoftirqd/000:15:230
15225995525,3cyclictest9-21ksoftirqd/020:35:260
15225995523,5cyclictest9-21ksoftirqd/020:30:180
15225995522,4cyclictest9-21ksoftirqd/021:20:190
15225995521,5cyclictest9-21ksoftirqd/019:35:130
15225995521,3cyclictest9-21ksoftirqd/021:30:000
15225995520,5cyclictest9-21ksoftirqd/021:40:140
15225995516,6cyclictest9-21ksoftirqd/023:45:180
15225995516,6cyclictest9-21ksoftirqd/023:45:180
134491550,3ptp4l0-21swapper/121:38:071
134491550,3ptp4l0-21swapper/121:23:321
134491550,3ptp4l0-21swapper/019:45:250
134491550,2ptp4l0-21swapper/120:37:431
1522899547,16cyclictest27406-21chrt21:56:293
15225995423,5cyclictest9-21ksoftirqd/023:10:160
15225995422,8cyclictest9-21ksoftirqd/023:15:200
15225995422,8cyclictest9-21ksoftirqd/023:15:190
15225995421,6cyclictest9-21ksoftirqd/022:20:260
15225995420,5cyclictest9-21ksoftirqd/020:55:200
15225995419,5cyclictest9-21ksoftirqd/019:20:300
15225995417,5cyclictest9-21ksoftirqd/022:25:220
134491540,3ptp4l0-21swapper/119:58:331
1522899537,16cyclictest16160-21chrt21:34:393
1522899537,16cyclictest11525-21taskset21:24:133
1522899537,15cyclictest1812-21chrt21:02:023
1522899536,16cyclictest20442-21chrt21:40:293
15225995326,4cyclictest9-21ksoftirqd/000:01:320
15225995325,7cyclictest9-21ksoftirqd/020:25:210
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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