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2026-05-26 - 20:49
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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 May 26, 2026 12:43:47)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
18227772540,0sleep11822778-21unixbench_multi10:10:191
174897599143,10cyclictest0-21swapper/307:15:003
174897599135,7cyclictest0-21swapper/311:25:123
1748975991311,1cyclictest0-21swapper/309:50:103
174897599130,9cyclictest0-21swapper/310:50:133
174897599130,12cyclictest0-21swapper/312:30:123
1748975991211,0cyclictest0-21swapper/307:40:113
1748975991210,1cyclictest0-21swapper/311:05:123
174897599120,1cyclictest0-21swapper/308:30:113
174897599120,11cyclictest0-21swapper/309:35:113
174897599120,11cyclictest0-21swapper/308:45:173
174897599120,10cyclictest0-21swapper/310:30:113
174897599119,1cyclictest0-21swapper/307:25:113
1748975991110,0cyclictest0-21swapper/312:00:123
1748975991110,0cyclictest0-21swapper/308:50:123
174897599110,11cyclictest0-21swapper/310:25:013
174897599110,11cyclictest0-21swapper/309:30:133
174897599110,10cyclictest0-21swapper/312:05:193
174897599110,10cyclictest0-21swapper/308:55:093
174897599110,0cyclictest0-21swapper/312:25:093
174897599110,0cyclictest0-21swapper/310:55:103
174897599110,0cyclictest0-21swapper/309:25:113
174897599110,0cyclictest0-21swapper/307:35:003
174897599109,0cyclictest0-21swapper/311:45:113
174897599109,0cyclictest0-21swapper/311:35:113
174897599109,0cyclictest0-21swapper/309:55:123
174897599109,0cyclictest0-21swapper/309:20:113
1748975991010,0cyclictest0-21swapper/310:30:013
1748975991010,0cyclictest0-21swapper/310:10:173
1748975991010,0cyclictest0-21swapper/308:35:203
1748975991010,0cyclictest0-21swapper/307:45:133
174897599100,9cyclictest0-21swapper/312:35:183
174897599100,9cyclictest0-21swapper/310:35:383
174897599100,9cyclictest0-21swapper/309:40:173
174897599100,9cyclictest0-21swapper/308:40:013
174897599100,9cyclictest0-21swapper/308:20:003
174897599100,0cyclictest0-21swapper/311:40:133
174897599100,0cyclictest0-21swapper/310:45:123
174897599100,0cyclictest0-21swapper/309:05:173
17489759999,0cyclictest0-21swapper/312:20:163
17489759999,0cyclictest0-21swapper/309:45:183
17489759999,0cyclictest0-21swapper/308:09:513
17489759999,0cyclictest0-21swapper/307:50:153
17489759990,9cyclictest0-21swapper/307:15:173
17489759990,8cyclictest0-21swapper/312:15:023
17489759990,8cyclictest0-21swapper/311:55:163
17489759990,8cyclictest0-21swapper/310:15:163
17489759990,8cyclictest0-21swapper/309:15:183
17489759990,0cyclictest0-21swapper/309:14:563
17489759988,0cyclictest0-21swapper/308:25:133
17489759980,6cyclictest0-21swapper/312:15:123
1748551283,2sleep10-21swapper/107:06:291
1747167281,4sleep21747242-21aten_r1power_en07:05:142
17489759977,0cyclictest0-21swapper/311:20:423
17489759977,0cyclictest0-21swapper/311:18:183
17489759977,0cyclictest0-21swapper/311:10:113
17489759977,0cyclictest0-21swapper/311:01:063
17489759977,0cyclictest0-21swapper/310:40:133
17489759977,0cyclictest0-21swapper/308:20:123
17489759970,0cyclictest0-21swapper/311:30:143
1747245271,4sleep30-21swapper/307:05:153
17489759966,0cyclictest0-21swapper/311:54:553
17489759966,0cyclictest0-21swapper/310:00:113
17489759966,0cyclictest0-21swapper/307:20:193
17489759955,0cyclictest0-21swapper/308:12:473
17489759950,2cyclictest0-21swapper/310:05:123
17489759944,0cyclictest0-21swapper/307:55:143
17489759940,3cyclictest1793173-21chrt09:00:173
17489759940,3cyclictest1758563-21chrt07:30:233
1865473230,2sleep11865475-21ssh11:52:381
1859751230,1sleep01859777-21apt-get11:40:120
1830819230,2sleep21830916-21grep10:30:182
1798317230,1sleep11798343-21apt-get09:15:131
1761531230,1sleep11761557-21apt-get07:40:101
1754235230,2sleep21754407-21python307:20:192
17489759933,0cyclictest0-21swapper/308:00:113
1747423231,0sleep00-21swapper/007:05:160
1875164220,1sleep01875313-21python312:15:190
1869012220,1sleep20-21swapper/212:00:192
1866430220,1sleep11866512-21irqstats11:55:151
1865087220,0sleep00-21swapper/011:50:210
1860434220,1sleep10-21swapper/111:40:181
1855309220,1sleep1621-21systemd-logind11:30:001
1849462220,1sleep01849727-21/usr/sbin/munin11:15:150
1849041220,1sleep20-21swapper/211:15:002
1848079220,1sleep01848185-21smart_sda11:10:180
1845257220,1sleep00-21swapper/011:05:150
1840681220,0sleep10-21swapper/110:55:101
1834165220,1sleep01834326-21date10:40:010
1827872220,1sleep01828020-21aten2.4-expect10:25:120
1822548220,1sleep01822776-21unixbench_multi10:10:190
1816809220,0sleep00-21swapper/009:59:260
1813396220,0sleep00-21swapper/009:50:130
1811152220,1sleep01811331-21/usr/sbin/munin09:45:140
1806828220,1sleep11807123-21df09:35:141
1786855220,1sleep01787126-21df_inode08:45:130
1782613220,1sleep01-21systemd08:35:010
1885021211,0sleep20-21swapper/212:39:472
1883280210,0sleep11883380-21aten_r1power_vo12:35:131
1882580210,0sleep10-21swapper/112:31:321
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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