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2026-04-18 - 07:50
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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 Sat Apr 18, 2026 00:43:47)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
4094986991310,2cyclictest0-21swapper/321:15:013
409498699128,1cyclictest0-21swapper/321:55:103
409498699120,1cyclictest0-21swapper/322:00:103
409498699120,1cyclictest0-21swapper/300:25:013
409498699120,11cyclictest0-21swapper/322:30:163
409498699119,1cyclictest0-21swapper/321:05:123
409498699119,1cyclictest0-21swapper/320:20:123
4094986991111,0cyclictest0-21swapper/321:35:183
409498699110,8cyclictest0-21swapper/323:55:173
409498699110,11cyclictest0-21swapper/320:05:163
409498699110,10cyclictest0-21swapper/322:35:123
409498699110,10cyclictest0-21swapper/320:45:173
409498699110,10cyclictest0-21swapper/320:00:173
409498699110,0cyclictest0-21swapper/323:20:103
409498699110,0cyclictest0-21swapper/322:40:113
409498699110,0cyclictest0-21swapper/319:55:113
409498699109,0cyclictest0-21swapper/319:30:113
4094986991010,0cyclictest0-21swapper/323:40:133
4094986991010,0cyclictest0-21swapper/323:30:173
4094986991010,0cyclictest0-21swapper/322:50:173
4094986991010,0cyclictest0-21swapper/319:30:013
4094986991010,0cyclictest0-21swapper/319:15:173
409498699100,9cyclictest0-21swapper/322:15:183
409498699100,0cyclictest4148038-21turbostat21:29:553
409498699100,0cyclictest0-21swapper/323:10:173
409498699100,0cyclictest0-21swapper/322:05:183
409498699100,0cyclictest0-21swapper/321:40:163
40949869999,0cyclictest0-21swapper/320:25:163
40949869999,0cyclictest0-21swapper/319:35:123
40949869999,0cyclictest0-21swapper/300:00:053
40949869998,0cyclictest0-21swapper/322:55:183
40949869998,0cyclictest0-21swapper/321:00:113
40949869990,9cyclictest0-21swapper/323:25:163
40949869990,8cyclictest0-21swapper/323:35:003
40949869990,8cyclictest0-21swapper/323:15:173
40949869990,8cyclictest0-21swapper/321:50:193
40949869988,0cyclictest0-21swapper/323:50:113
40949869988,0cyclictest0-21swapper/323:49:233
40949869988,0cyclictest0-21swapper/322:45:163
40949869988,0cyclictest0-21swapper/322:25:123
40949869988,0cyclictest0-21swapper/321:20:193
40949869988,0cyclictest0-21swapper/320:50:093
40949869988,0cyclictest0-21swapper/319:50:183
40949869988,0cyclictest0-21swapper/319:45:003
40949869980,0cyclictest0-21swapper/323:00:183
40949869980,0cyclictest0-21swapper/320:35:013
4093606281,4sleep30-21swapper/319:05:143
40949869977,0cyclictest0-21swapper/323:05:173
40949869977,0cyclictest0-21swapper/321:45:183
40949869977,0cyclictest0-21swapper/320:55:143
40949869977,0cyclictest0-21swapper/320:10:113
40949869977,0cyclictest0-21swapper/319:10:183
40949869966,0cyclictest0-21swapper/322:20:133
40949869966,0cyclictest0-21swapper/322:20:123
40949869966,0cyclictest0-21swapper/321:30:153
40949869966,0cyclictest0-21swapper/321:15:173
40949869966,0cyclictest0-21swapper/320:35:113
40949869966,0cyclictest0-21swapper/300:35:233
40949869966,0cyclictest0-21swapper/300:30:183
40949869966,0cyclictest0-21swapper/300:05:173
40949869965,0cyclictest0-21swapper/320:18:123
40949869955,0cyclictest0-21swapper/319:20:113
40949869954,0cyclictest0-21swapper/319:45:483
40949869951,2cyclictest0-21swapper/300:15:133
40949869944,0cyclictest0-21swapper/322:10:053
40949869944,0cyclictest0-21swapper/300:10:513
40949869943,0cyclictest0-21swapper/300:25:133
40949869940,3cyclictest4130662-21chrt20:40:073
4094577242,1sleep10-21swapper/119:06:311
4164859230,1sleep24164885-21apt-get22:05:122
4150807230,2sleep04151014-21ntpq21:30:150
4134486230,1sleep04134512-21apt-get20:50:090
4094539231,1sleep00-21swapper/019:06:020
4093335231,1sleep20-21swapper/219:05:122
4188125220,1sleep04188174-21systemd-run23:00:020
4183936220,0sleep00-21swapper/022:49:480
4175497220,1sleep24175765-21df22:30:132
4172844220,1sleep00-21swapper/022:23:350
4172844220,1sleep00-21swapper/022:23:340
4162771220,0sleep00-21swapper/022:00:090
4160174220,1sleep00-21swapper/021:52:500
4156612220,1sleep14156889-21ls21:45:131
4155990220,0sleep20-21swapper/221:42:382
4152945220,1sleep14153094-21ntp_states21:35:171
4146280220,1sleep20-21swapper/221:20:142
4138334220,1sleep24138360-21apt-get21:00:112
4137018220,1sleep24137172-21ntp_states20:55:162
4127331220,0sleep00-21swapper/020:30:160
4122466220,1sleep14122491-21perf20:20:011
4110083220,1sleep14110288-21/usr/sbin/munin19:45:181
4097992220,1sleep04098145-21memory19:15:160
4097650220,1sleep20-21swapper/219:15:132
4096810220,1sleep10-21swapper/119:15:001
3264220,1sleep03409-21latency23:20:150
32481220,1sleep032746-21diskstats00:30:140
32310220,1sleep20-21swapper/200:30:122
23537220,0sleep00-21swapper/000:08:290
17812220,1sleep118099-21df23:55:141
13254220,1sleep00-21swapper/023:44:560
9393210,0sleep20-21swapper/223:35:132
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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