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2026-06-22 - 21:08
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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 Mon Jun 22, 2026 12:45:03)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2046199923,63cyclictest5612-21apt-get12:30:110
20467998820,59cyclictest0-21swapper/111:40:111
326962870,6sleep00-21swapper/007:40:210
20467998715,57cyclictest0-21swapper/109:45:121
2046199865,55cyclictest0-21swapper/007:55:200
20461998635,46cyclictest30840-31find07:35:430
20467998522,55cyclictest243-21systemd-journal07:22:361
20467998517,59cyclictest0-21swapper/112:00:111
20467998511,60cyclictest1654-21chrt07:45:151
20467998511,60cyclictest1654-21chrt07:45:141
2046799846,65cyclictest17141-21apt-get10:00:141
2046799846,65cyclictest17141-21apt-get10:00:141
2046799843,75cyclictest457-21dbus-daemon07:35:191
20467998416,55cyclictest0-21swapper/111:20:091
2046199845,47cyclictest0-21swapper/008:00:310
2046799838,61cyclictest4043-21apt-get12:25:221
2046799838,61cyclictest4043-21apt-get12:25:221
2046799838,58cyclictest15377-21apt-get09:55:091
2046799836,23cyclictest14825-21apt-get11:25:121
20467998312,59cyclictest0-21swapper/111:05:121
20467998223,54cyclictest29868-21seq10:35:251
2046199826,69cyclictest0-21swapper/008:15:110
2046199824,59cyclictest0-21swapper/012:38:120
2046799816,24cyclictest15951-21apt-get08:25:141
2046799814,21cyclictest26025-21aten2.4_r3power10:25:171
20467998114,60cyclictest0-21swapper/108:10:141
20467998114,59cyclictest0-21swapper/110:45:111
20467998112,56cyclictest0-21swapper/111:55:221
2046799807,23cyclictest27655-21apt-get10:30:131
2046799805,11cyclictest0-21swapper/109:45:021
20467998023,52cyclictest457-21dbus-daemon08:20:001
20467998020,18cyclictest20559-21sort10:10:011
20467998015,56cyclictest0-21swapper/110:55:111
20467998011,62cyclictest0-21swapper/109:05:121
2046199806,45cyclictest0-21swapper/009:25:210
1943228029,40sleep00-21swapper/007:05:240
2046799799,58cyclictest20544-21apt-get07:10:131
2046799797,23cyclictest21550-21apt-get08:40:131
2046799797,18cyclictest32063-21apt-get09:10:161
20467997917,19cyclictest6085-21cat07:55:361
20467997915,55cyclictest0-21swapper/110:10:131
2046199795,47cyclictest0-21swapper/009:10:170
2046199794,45cyclictest0-21swapper/010:10:020
2010527923,46sleep10-21swapper/107:08:111
2046799787,21cyclictest26901-21apt-get07:25:251
2046799787,20cyclictest1375-21apt-get09:15:131
2046799786,20cyclictest11324-21apt-get11:15:111
2046799785,11cyclictest0-21swapper/110:15:581
2046799785,11cyclictest0-21swapper/110:15:581
20467997819,18cyclictest4172-21grep07:50:321
20461997830,42cyclictest31661-21ntp_states12:10:300
2046799776,23cyclictest31510-21apt-get10:40:231
2046799776,19cyclictest25028-21apt-get08:50:151
2046799775,65cyclictest0-21swapper/109:04:371
2046799773,15cyclictest27858-21grep08:55:371
20467997723,49cyclictest3645-21apt-config12:25:011
20467997721,20cyclictest31662-21sshd12:10:291
20467997714,56cyclictest0-21swapper/109:35:121
2046799769,11cyclictest0-21swapper/112:15:211
2046799766,19cyclictest24174-21apt-get10:20:131
2046799765,16cyclictest457-21dbus-daemon08:35:011
2046799763,21cyclictest8989-21aten2.4_r3power08:05:171
20467997615,56cyclictest0-21swapper/108:35:241
20467997611,57cyclictest0-21swapper/111:50:111
2046199764,40cyclictest22757-21diskstats10:15:200
2046199764,40cyclictest22757-21diskstats10:15:200
2046199762,45cyclictest5597-21taskset10:57:100
2046799758,11cyclictest0-21swapper/109:25:011
2046799756,22cyclictest21859-21apt-get11:45:121
2046799756,21cyclictest6081-21apt-get12:30:241
2046799756,19cyclictest7184-21apt-get08:00:231
20467997521,46cyclictest6956-21df09:30:181
20467997519,19cyclictest243-21systemd-journal08:24:551
2046199754,52cyclictest20115-21apt-get11:40:110
2046799749,11cyclictest0-21swapper/112:05:191
2046799747,21cyclictest9589-21apt-get11:10:131
2046799746,20cyclictest32331-21apt-get07:40:111
2046799746,20cyclictest13640-21apt-get09:50:131
2046799746,19cyclictest4875-21apt-get09:25:151
20467997422,47cyclictest23529-21sshd07:15:291
20467997420,12cyclictest19010-21ntp_kernel_pll_11:35:291
2046199747,59cyclictest0-21swapper/008:45:130
2046199747,58cyclictest0-21swapper/009:05:140
2046199746,50cyclictest10714-21apt-get08:10:140
2046199742,46cyclictest14-21ksoftirqd/011:23:230
20461997410,56cyclictest0-21swapper/011:10:130
2046799737,19cyclictest6060-21apt-get11:00:121
2046799736,20cyclictest2562-21apt-get10:50:111
2046799736,20cyclictest23290-21apt-get08:45:131
2046799733,11cyclictest17221-21needreboot11:30:291
20467997315,16cyclictest562-21runrttasks07:30:301
2046199737,58cyclictest0-21swapper/010:10:150
2046199736,60cyclictest0-21swapper/011:35:140
2046199732,66cyclictest23880-21cstates11:50:170
2046199732,63cyclictest1371-21/usr/sbin/munin09:15:150
2046199728,57cyclictest0-21swapper/012:15:120
2046199726,54cyclictest27398-21apt-get12:00:110
2046199725,54cyclictest1649-21apt-get07:45:150
2046199725,54cyclictest1649-21apt-get07:45:150
2046199724,62cyclictest28383-21ntp_states10:30:290
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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