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2026-04-17 - 17:33
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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 Fri Apr 17, 2026 12:43:47)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
202564499141,1cyclictest0-21swapper/311:30:013
202564499140,2cyclictest0-21swapper/309:30:123
202564499120,1cyclictest0-21swapper/311:20:163
202564499120,1cyclictest0-21swapper/309:50:113
202564499120,11cyclictest0-21swapper/310:30:123
202564499120,11cyclictest0-21swapper/309:40:113
202564499120,10cyclictest0-21swapper/311:05:113
202564499120,10cyclictest0-21swapper/308:15:123
202564499120,0cyclictest0-21swapper/308:40:003
202564499120,0cyclictest0-21swapper/307:45:103
202564499120,0cyclictest0-21swapper/307:10:113
202564499119,1cyclictest0-21swapper/308:30:123
2025644991111,0cyclictest0-21swapper/311:50:123
2025644991110,0cyclictest0-21swapper/311:45:173
2025644991110,0cyclictest0-21swapper/311:15:113
202564499110,11cyclictest0-21swapper/307:20:163
202564499110,10cyclictest0-21swapper/312:05:123
202564499110,10cyclictest0-21swapper/311:55:183
202564499110,10cyclictest0-21swapper/311:35:133
202564499110,10cyclictest0-21swapper/310:40:163
202564499110,10cyclictest0-21swapper/309:35:183
202564499110,10cyclictest0-21swapper/308:20:183
202564499110,0cyclictest0-21swapper/310:50:133
202564499110,0cyclictest0-21swapper/307:50:123
2025644991010,0cyclictest0-21swapper/311:27:233
2025644991010,0cyclictest0-21swapper/308:10:123
2025644991010,0cyclictest0-21swapper/307:40:183
202564499100,9cyclictest0-21swapper/310:05:003
202564499100,9cyclictest0-21swapper/308:59:553
202564499100,10cyclictest0-21swapper/312:05:013
202564499100,0cyclictest0-21swapper/309:15:193
202564499100,0cyclictest0-21swapper/307:30:103
20245872101,6sleep30-21swapper/307:05:183
20256449999,0cyclictest0-21swapper/310:25:203
20256449999,0cyclictest0-21swapper/310:20:013
20256449999,0cyclictest0-21swapper/308:45:173
20256449999,0cyclictest0-21swapper/308:30:003
20256449999,0cyclictest0-21swapper/307:35:183
20256449997,1cyclictest0-21swapper/309:00:123
20256449988,0cyclictest0-21swapper/312:31:473
20256449988,0cyclictest0-21swapper/312:15:203
20256449988,0cyclictest0-21swapper/311:40:173
20256449988,0cyclictest0-21swapper/310:55:023
20256449988,0cyclictest0-21swapper/309:20:183
20256449988,0cyclictest0-21swapper/309:05:123
20256449980,7cyclictest0-21swapper/308:06:223
20256449977,0cyclictest0-21swapper/311:02:513
20256449977,0cyclictest0-21swapper/310:35:103
20256449977,0cyclictest0-21swapper/309:26:323
20256449977,0cyclictest0-21swapper/309:10:123
20256449977,0cyclictest0-21swapper/307:55:173
20256449977,0cyclictest0-21swapper/307:30:013
20256449977,0cyclictest0-21swapper/307:15:183
20256449966,0cyclictest0-21swapper/312:35:133
20256449966,0cyclictest0-21swapper/312:20:123
20256449965,1cyclictest0-21swapper/309:55:153
20256449965,0cyclictest0-21swapper/310:45:143
20256449960,6cyclictest0-21swapper/310:24:563
20256449960,5cyclictest0-21swapper/308:04:593
20256449960,0cyclictest0-21swapper/308:40:013
20256449955,0cyclictest0-21swapper/312:27:223
20256449955,0cyclictest0-21swapper/311:13:203
20256449954,0cyclictest0-21swapper/310:05:123
20256449951,2cyclictest0-21swapper/309:45:123
2031998240,4sleep00-21swapper/007:24:280
20256449944,0cyclictest0-21swapper/308:50:433
20256449943,0cyclictest0-21swapper/312:13:503
20256449940,2cyclictest0-21swapper/310:10:113
2025358242,1sleep10-21swapper/107:08:081
2024695241,2sleep02024838-21switchtime07:05:190
2024454241,2sleep20-21swapper/207:05:172
2077249230,1sleep12077275-21apt-get09:20:121
2069404230,1sleep22069430-21apt-get09:00:122
2052613230,1sleep02052895-21users08:15:190
2040242230,2sleep22040428-21tr07:45:112
2153185220,1sleep12153366-21needreboot12:20:151
2150576220,1sleep12150602-21apt-get12:15:101
2139904220,1sleep12139975-21sed11:50:021
2126052220,1sleep12126262-21ntpq11:15:151
2114848220,1sleep02114874-21apt-get10:50:130
2114070220,0sleep00-21swapper/010:45:200
2110355220,1sleep00-21swapper/010:39:320
2104416220,1sleep02104442-21apt-get10:25:110
2103380220,1sleep02103625-21users10:20:190
2100846220,1sleep22100998-21ntp_states10:15:162
2098146220,1sleep12098205-21telnet10:10:111
2074696220,0sleep00-21swapper/009:12:060
2065084220,0sleep00-21swapper/008:47:050
2058250220,1sleep12058404-21ntp_states08:30:171
2048763220,1sleep00-21swapper/008:05:190
2046132220,0sleep00-21swapper/008:00:140
2043334220,1sleep02043335-21sshd07:50:210
2037940220,1sleep0607-21dbus-daemon07:40:010
2030499220,1sleep12030794-21df07:20:131
2159906210,0sleep10-21swapper/112:35:201
2159117210,0sleep00-21swapper/012:35:150
2158677210,0sleep20-21swapper/212:35:012
2158391210,0sleep20-21swapper/212:32:292
2158349210,0sleep10-21swapper/112:32:081
2156971210,0sleep00-21swapper/012:30:140
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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