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2026-07-18 - 01:57
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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
Compare latency of primary with shadow system
Characteristics of the 100 highest latencies:
System rack3slot6.osadl.org (updated Sat Jul 18, 2026 00:45:01)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
128172990,6chrt12345-21apt-get20:25:150
18048999577,11cyclictest14-21ksoftirqd/020:40:150
18048999262,16cyclictest0-21swapper/023:10:140
1755729029,48sleep10-21swapper/119:06:391
1755729029,48sleep10-21swapper/119:06:391
18048998713,67cyclictest0-21swapper/020:20:120
18048998568,11cyclictest14-21ksoftirqd/000:25:110
18048998568,11cyclictest14-21ksoftirqd/000:25:110
18048998566,11cyclictest14-21ksoftirqd/022:55:150
18048998256,13cyclictest0-21swapper/021:45:120
18048998164,10cyclictest14-21ksoftirqd/022:00:250
1789028121,51sleep00-21swapper/019:09:420
1789028121,51sleep00-21swapper/019:09:420
18048997854,12cyclictest14-21ksoftirqd/021:55:150
18048997850,17cyclictest14-21ksoftirqd/021:40:120
18048997752,11cyclictest14-21ksoftirqd/023:50:240
18048997650,13cyclictest14-21ksoftirqd/020:55:150
18048997650,12cyclictest14-21ksoftirqd/021:50:160
18048997647,18cyclictest0-21swapper/023:35:120
286972750,4sleep10-21swapper/122:40:181
18051997436,20cyclictest26-21ksoftirqd/122:27:301
18048997458,10cyclictest14-21ksoftirqd/022:15:110
18048997443,17cyclictest0-21swapper/023:40:130
18048997348,12cyclictest14-21ksoftirqd/022:50:110
18048997140,22cyclictest14-21ksoftirqd/019:40:140
18051997033,17cyclictest26-21ksoftirqd/100:09:501
18051997026,14cyclictest26-21ksoftirqd/121:55:001
18048997039,19cyclictest14-21ksoftirqd/020:45:150
18051996936,28cyclictest26-21ksoftirqd/119:17:581
18051996935,17cyclictest26-21ksoftirqd/122:01:481
18048996941,18cyclictest14-21ksoftirqd/022:25:120
18048996840,17cyclictest14-21ksoftirqd/023:30:150
18048996813,15cyclictest0-21swapper/023:00:120
18048996739,16cyclictest0-21swapper/019:25:100
18048996738,17cyclictest0-21swapper/022:05:130
18051996623,12cyclictest26-21ksoftirqd/119:39:011
18048996640,16cyclictest14-21ksoftirqd/000:35:120
18048996638,18cyclictest0-21swapper/022:35:120
18048996637,18cyclictest14-21ksoftirqd/021:25:160
18048996637,16cyclictest0-21swapper/022:40:130
18048996637,15cyclictest14-21ksoftirqd/000:00:140
18051996511,38cyclictest23449-21timerandwakeup23:55:341
18048996536,16cyclictest0-21swapper/019:15:140
18051996432,20cyclictest26-21ksoftirqd/122:20:081
18051996432,20cyclictest26-21ksoftirqd/122:20:081
18051996429,15cyclictest26-21ksoftirqd/100:30:001
18051996429,15cyclictest26-21ksoftirqd/100:30:001
18048996437,18cyclictest14-21ksoftirqd/021:20:240
18048996437,16cyclictest0-21swapper/019:10:130
18048996436,18cyclictest14-21ksoftirqd/020:30:120
18048996436,15cyclictest0-21swapper/000:15:140
18048996435,17cyclictest0-21swapper/019:50:130
18048996435,16cyclictest0-21swapper/023:25:160
1804899636,16cyclictest1975-21apt-get19:55:130
18048996337,16cyclictest0-21swapper/022:45:110
18048996335,16cyclictest0-21swapper/020:50:150
18048996334,16cyclictest0-21swapper/021:15:140
18048996333,18cyclictest0-21swapper/023:05:130
18048996331,19cyclictest0-21swapper/000:30:120
1805199626,10cyclictest0-21swapper/122:56:261
1805199623,46cyclictest0-21swapper/120:35:391
18051996230,13cyclictest26-21ksoftirqd/122:45:271
1805199622,47cyclictest31888-21cat00:20:261
18051996213,20cyclictest26-21ksoftirqd/119:52:081
18051996211,22cyclictest562-21runrttasks19:44:241
18048996235,18cyclictest14-21ksoftirqd/023:45:110
18048996235,18cyclictest14-21ksoftirqd/019:35:130
1804899614,22cyclictest27308-21grep19:35:020
18048996140,15cyclictest14-21ksoftirqd/020:00:250
18048996134,14cyclictest0-21swapper/020:35:120
18048996133,22cyclictest457-21dbus-daemon00:25:000
18048996120,36cyclictest5637-21tail20:05:160
18051996040,8cyclictest12581-21df_inode21:55:211
18051996025,16cyclictest26-21ksoftirqd/123:20:011
18051996011,21cyclictest26-21ksoftirqd/122:53:311
18051996010,23cyclictest26-21ksoftirqd/121:23:121
1804899604,8cyclictest0-21swapper/000:10:240
18048996031,15cyclictest0-21swapper/021:05:150
18051995927,13cyclictest26-21ksoftirqd/121:30:301
1805199592,41cyclictest7727-21ntp_kernel_pll_21:40:281
18048995937,13cyclictest6826-21cron21:40:000
18048995935,17cyclictest14-21ksoftirqd/022:10:130
18048995910,10cyclictest28445-21diskmemload21:10:280
258892580,6chrt25891-21unixbench_multi22:30:360
1805199588,45cyclictest151rcu_preempt23:30:061
1805199586,36cyclictest5895-21netstat21:35:271
1805199583,36cyclictest11014-21grep23:20:361
18051995814,39cyclictest0-21swapper/100:30:211
18051995810,21cyclictest26-21ksoftirqd/122:31:451
1804899588,9cyclictest0-21swapper/020:20:000
18048995832,14cyclictest0-21swapper/021:30:120
18048995814,36cyclictest0-21swapper/019:45:130
1805199579,15cyclictest26-21ksoftirqd/123:50:121
1805199574,18cyclictest0-21swapper/122:10:181
1805199573,18cyclictest28957-21diskstats21:10:221
18051995728,12cyclictest26-21ksoftirqd/121:05:231
18051995722,12cyclictest26-21ksoftirqd/121:00:181
18051995720,15cyclictest26-21ksoftirqd/120:25:481
18051995719,18cyclictest26-21ksoftirqd/119:55:131
18051995717,18cyclictest19701-21munin-run19:15:011
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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