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2026-03-20 - 07:25
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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 Fri Mar 20, 2026 00:45:02)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
162239910434,58cyclictest26-21ksoftirqd/120:20:131
162239910434,58cyclictest26-21ksoftirqd/120:20:131
16223999313,17cyclictest0-21swapper/121:40:121
16223999115,64cyclictest0-21swapper/100:10:221
1531829138,36sleep10-21swapper/119:05:281
16223999014,16cyclictest0-21swapper/121:15:111
16223998914,16cyclictest0-21swapper/100:20:121
16223998716,16cyclictest0-21swapper/122:20:121
16223998715,16cyclictest0-21swapper/122:55:111
1621799875,22cyclictest9852-21apt-get23:25:130
16223998622,23cyclictest3903-21unixbench_singl23:05:361
16223998613,18cyclictest0-21swapper/120:00:151
16223998512,17cyclictest0-21swapper/122:05:121
16217998520,59cyclictest11755-21sed21:55:470
1622399847,19cyclictest20670-21apt-get23:55:151
16223998416,56cyclictest0-21swapper/121:30:121
16223998414,17cyclictest0-21swapper/123:10:111
16223998414,16cyclictest0-21swapper/120:50:221
1621799847,69cyclictest0-21swapper/021:30:140
1621799847,25cyclictest21481-21apt-get20:55:120
1621799846,23cyclictest8929-21apt-get20:20:130
1621799846,23cyclictest8929-21apt-get20:20:120
1621799846,23cyclictest17191-21apt-get23:45:150
1621799842,76cyclictest4644-21chrt21:39:370
16223998315,16cyclictest0-21swapper/123:25:111
1621799836,68cyclictest0-21swapper/020:05:110
1621799835,72cyclictest0-21swapper/019:38:470
1621799835,23cyclictest27350-21apt-get19:40:120
1622399828,64cyclictest0-21swapper/120:10:141
16223998215,15cyclictest0-21swapper/120:35:131
16223998212,16cyclictest0-21swapper/122:15:121
1621799827,65cyclictest0-21swapper/000:20:130
1621799826,68cyclictest0-21swapper/021:20:140
1621799824,24cyclictest2823-21apt-get23:05:120
1481928231,37sleep00-21swapper/019:05:180
1622399814,34cyclictest448-21dbus-daemon21:10:011
1622399813,42cyclictest22250-21apt-get00:00:171
16223998121,20cyclictest8465-21cat23:20:211
16223998114,58cyclictest0-21swapper/123:30:221
16223998113,19cyclictest0-21swapper/119:45:121
16223998110,22cyclictest17702-21apt-get20:45:111
1621799818,66cyclictest0-21swapper/020:40:130
1621799817,66cyclictest0-21swapper/021:05:120
1621799817,22cyclictest20670-21apt-get23:55:130
1621799816,21cyclictest28510-21apt-get21:15:130
1622399806,21cyclictest23798-21apt-get19:30:101
16223998015,55cyclictest0-21swapper/119:25:131
16223998012,15cyclictest0-21swapper/120:55:121
1621799809,62cyclictest0-21swapper/022:00:130
1621799809,62cyclictest0-21swapper/022:00:120
1621799808,63cyclictest0-21swapper/023:40:110
1621799807,65cyclictest0-21swapper/000:25:140
1621799807,64cyclictest0-21swapper/020:30:130
1621799805,24cyclictest26591-21apt-get00:10:220
16217998012,61cyclictest0-21swapper/023:00:120
16217998010,62cyclictest0-21swapper/000:05:110
1622399799,26cyclictest500-21snmpd21:45:151
16223997924,16cyclictest4542-21lockfile-create00:40:001
1621799799,62cyclictest0-21swapper/022:10:130
1621799797,64cyclictest0-21swapper/023:35:130
1621799797,63cyclictest0-21swapper/019:30:100
1621799796,24cyclictest22062-21apt-get19:25:120
1621799796,22cyclictest5432-21apt-get20:10:140
1621799795,20cyclictest1905-21apt-get20:00:160
1622399787,22cyclictest30275-21apt-get21:20:141
1622399787,22cyclictest23238-21apt-get21:00:111
1622399787,22cyclictest23238-21apt-get21:00:101
16223997818,18cyclictest488-21gdbus22:34:591
16223997813,14cyclictest0-21swapper/123:50:111
16223997813,14cyclictest0-21swapper/123:50:101
1621799787,64cyclictest0-21swapper/000:00:250
1621799787,63cyclictest0-21swapper/022:35:120
1621799787,62cyclictest0-21swapper/022:50:120
1621799786,19cyclictest8661-21apt-get21:50:130
181712770,6sleep10-21swapper/119:15:041
1622399779,23cyclictest32572-21runrttasks19:55:121
1622399779,23cyclictest17191-21apt-get23:45:151
1622399777,22cyclictest31837-21apt-get00:25:131
16223997710,24cyclictest26772-21apt-get21:10:131
1621799778,60cyclictest0-21swapper/021:25:120
1621799778,60cyclictest0-21swapper/000:35:120
1621799777,63cyclictest0-21swapper/022:30:120
1621799777,62cyclictest0-21swapper/020:50:260
1621799777,62cyclictest0-21swapper/019:45:140
1621799776,64cyclictest0-21swapper/019:15:100
1621799776,63cyclictest0-21swapper/019:10:120
1621799776,63cyclictest0-21swapper/000:15:130
1621799774,22cyclictest18930-21apt-get23:50:120
1621799774,22cyclictest18930-21apt-get23:50:110
1621799774,16cyclictest4881-21apt-get21:40:130
1622399767,22cyclictest15988-21apt-get22:10:131
1622399767,18cyclictest10668-21apt-get20:25:131
1622399766,20cyclictest15959-21apt-get20:40:131
1622399766,19cyclictest25539-21apt-get19:35:111
16223997616,50cyclictest0-21swapper/121:50:121
16223997616,21cyclictest488-21gdbus23:40:001
16223997613,16cyclictest0-21swapper/123:15:121
1621799767,61cyclictest0-21swapper/022:25:140
1621799767,61cyclictest0-21swapper/022:15:140
1621799766,62cyclictest0-21swapper/020:35:120
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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