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2026-04-14 - 13:31
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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 rack1slot3.osadl.org (updated Tue Apr 14, 2026 12:43:47)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
211316999140,12cyclictest0-21swapper/308:10:133
2113169991311,1cyclictest0-21swapper/308:20:133
2113169991310,2cyclictest0-21swapper/309:10:003
211316999130,12cyclictest0-21swapper/310:45:133
211316999130,12cyclictest0-21swapper/309:30:113
211316999120,11cyclictest0-21swapper/311:40:153
211316999120,11cyclictest0-21swapper/308:40:123
211316999120,11cyclictest0-21swapper/307:30:123
2113169991111,0cyclictest0-21swapper/312:24:093
2113169991111,0cyclictest0-21swapper/310:55:133
2113169991110,0cyclictest0-21swapper/311:32:483
2113169991110,0cyclictest0-21swapper/311:20:153
211316999110,11cyclictest0-21swapper/312:25:183
211316999110,11cyclictest0-21swapper/312:25:183
211316999110,10cyclictest0-21swapper/312:15:123
211316999110,10cyclictest0-21swapper/311:10:143
211316999110,10cyclictest0-21swapper/310:17:013
211316999110,10cyclictest0-21swapper/310:10:183
211316999110,10cyclictest0-21swapper/309:10:113
211316999110,0cyclictest0-21swapper/310:40:013
211316999110,0cyclictest0-21swapper/309:45:133
211316999110,0cyclictest0-21swapper/309:20:133
211316999110,0cyclictest0-21swapper/307:40:123
211316999110,0cyclictest0-21swapper/307:15:013
211316999109,0cyclictest0-21swapper/311:25:143
211316999109,0cyclictest0-21swapper/310:40:143
211316999108,1cyclictest0-21swapper/307:50:113
2113169991010,0cyclictest0-21swapper/311:15:133
2113169991010,0cyclictest0-21swapper/311:00:173
2113169991010,0cyclictest0-21swapper/309:55:183
2113169991010,0cyclictest0-21swapper/309:30:013
2113169991010,0cyclictest0-21swapper/309:15:173
2113169991010,0cyclictest0-21swapper/309:00:113
2113169991010,0cyclictest0-21swapper/308:30:013
2113169991010,0cyclictest0-21swapper/307:55:173
211316999100,9cyclictest0-21swapper/309:55:003
211316999100,10cyclictest0-21swapper/311:35:213
21131699999,0cyclictest0-21swapper/310:30:193
21131699999,0cyclictest0-21swapper/309:35:143
21131699998,0cyclictest0-21swapper/312:10:113
21131699988,0cyclictest0-21swapper/312:35:213
21131699988,0cyclictest0-21swapper/311:08:143
21131699988,0cyclictest0-21swapper/309:40:513
21131699988,0cyclictest0-21swapper/308:31:073
21131699988,0cyclictest0-21swapper/307:21:063
2112926281,5sleep30-21swapper/307:09:063
21131699977,0cyclictest0-21swapper/312:30:143
21131699977,0cyclictest0-21swapper/307:49:143
21131699970,7cyclictest0-21swapper/308:17:003
21131699970,6cyclictest0-21swapper/312:05:193
21131699970,6cyclictest0-21swapper/310:05:123
21131699970,0cyclictest0-21swapper/308:05:183
2120243260,5sleep02120335-21sed07:25:160
21131699966,0cyclictest26450irq/132-ahci[0000:00:17.0]11:45:153
21131699966,0cyclictest0-21swapper/310:26:593
21131699966,0cyclictest0-21swapper/310:20:133
21131699966,0cyclictest0-21swapper/307:37:053
21131699965,1cyclictest0-21swapper/308:55:133
21131699965,1cyclictest0-21swapper/308:50:133
21131699965,0cyclictest0-21swapper/312:03:393
21131699960,0cyclictest0-21swapper/311:50:113
21131699960,0cyclictest0-21swapper/308:45:123
14039860,3rtkit-daemon622-21wpa_supplicant07:06:451
14039860,0rtkit-daemon328-21plymouthd07:30:241
21131699955,0cyclictest0-21swapper/310:00:153
21131699954,0cyclictest0-21swapper/308:00:373
21131699954,0cyclictest0-21swapper/307:10:173
21131699950,5cyclictest0-21swapper/308:38:083
14039850,2rtkit-daemon2176816-21apt-get09:50:121
14039850,1rtkit-daemon2203971-21munin-run10:55:011
2211359240,3sleep22211502-21timerandwakeup11:10:202
21131699943,0cyclictest0-21swapper/311:55:303
21131699943,0cyclictest0-21swapper/310:50:133
21131699940,0cyclictest0-21swapper/307:25:123
2112795242,1sleep20-21swapper/207:07:242
14039840,2rtkit-daemon766-21snmpd12:39:231
14039840,2rtkit-daemon766-21snmpd08:35:261
14039840,2rtkit-daemon622-21wpa_supplicant11:47:491
14039840,2rtkit-daemon440-21systemd-udevd07:29:571
14039840,2rtkit-daemon2189343-21perf10:24:511
14039840,2rtkit-daemon2183343-21/usr/sbin/munin10:05:111
14039840,2rtkit-daemon1-21systemd11:39:241
14039840,2rtkit-daemon1-21systemd11:23:491
14039840,2rtkit-daemon1-21systemd10:35:011
14039840,2rtkit-daemon1-21systemd10:17:251
14039840,2rtkit-daemon1-21systemd10:00:461
14039840,2rtkit-daemon1-21systemd09:46:201
14039840,2rtkit-daemon1-21systemd09:19:151
14039840,1rtkit-daemon691-21gmain12:10:421
14039840,1rtkit-daemon328-21plymouthd11:32:021
14039840,0rtkit-daemon0-21swapper/108:22:521
2231061230,1sleep12231084-21apt-get12:00:021
2166517230,1sleep22166543-21apt-get09:25:132
2153334230,0sleep22153506-21grep08:50:192
2152549230,1sleep02152575-21apt-get08:50:130
2144493232,1sleep00-21swapper/008:28:160
2127384230,0sleep00-21swapper/007:44:560
2121385230,0sleep20-21swapper/207:29:012
2111523231,1sleep00-21swapper/007:05:140
14039830,2rtkit-daemon766-21snmpd10:40:091
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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