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2026-05-14 - 01:57
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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 Thu May 14, 2026 00:43:47)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
139851499140,2cyclictest0-21swapper/319:25:113
139851499138,2cyclictest0-21swapper/300:05:123
139851499130,1cyclictest0-21swapper/319:20:123
139851499130,12cyclictest0-21swapper/319:10:113
1398514991210,1cyclictest0-21swapper/323:00:133
139851499120,1cyclictest0-21swapper/322:45:003
139851499120,11cyclictest0-21swapper/322:25:113
139851499120,11cyclictest0-21swapper/322:15:113
139851499120,11cyclictest0-21swapper/322:00:113
139851499120,11cyclictest0-21swapper/321:45:123
139851499120,11cyclictest0-21swapper/321:45:113
139851499120,11cyclictest0-21swapper/319:50:013
139851499120,10cyclictest0-21swapper/321:15:123
1398514991111,0cyclictest0-21swapper/321:40:113
139851499110,9cyclictest0-21swapper/320:50:113
139851499110,8cyclictest0-21swapper/321:00:013
139851499110,11cyclictest0-21swapper/300:35:003
139851499110,10cyclictest0-21swapper/322:15:023
139851499110,10cyclictest0-21swapper/321:33:443
139851499110,10cyclictest0-21swapper/321:01:433
139851499110,10cyclictest0-21swapper/320:45:003
139851499110,10cyclictest0-21swapper/320:20:173
139851499110,10cyclictest0-21swapper/300:25:183
139851499110,10cyclictest0-21swapper/300:15:163
139851499110,0cyclictest0-21swapper/323:25:203
139851499110,0cyclictest0-21swapper/323:10:003
139851499110,0cyclictest0-21swapper/322:45:183
139851499110,0cyclictest0-21swapper/321:05:173
139851499110,0cyclictest0-21swapper/320:05:163
139851499109,0cyclictest0-21swapper/323:45:133
139851499109,0cyclictest0-21swapper/322:10:023
139851499109,0cyclictest0-21swapper/320:00:133
139851499108,1cyclictest0-21swapper/321:55:123
1398514991010,0cyclictest0-21swapper/322:55:183
1398514991010,0cyclictest0-21swapper/321:39:573
1398514991010,0cyclictest0-21swapper/321:20:133
1398514991010,0cyclictest0-21swapper/320:40:123
1398514991010,0cyclictest0-21swapper/320:00:003
139851499100,0cyclictest0-21swapper/323:35:123
139851499100,0cyclictest0-21swapper/322:55:013
139851499100,0cyclictest0-21swapper/322:35:013
139851499100,0cyclictest0-21swapper/321:10:183
139851499100,0cyclictest0-21swapper/320:25:183
139851499100,0cyclictest0-21swapper/320:10:193
139851499100,0cyclictest0-21swapper/300:00:003
13985149999,0cyclictest0-21swapper/321:25:103
13985149999,0cyclictest0-21swapper/300:35:123
13985149999,0cyclictest0-21swapper/300:20:123
13985149998,0cyclictest0-21swapper/323:20:013
13985149990,8cyclictest0-21swapper/319:40:013
13985149990,0cyclictest0-21swapper/323:40:183
13985149988,0cyclictest0-21swapper/322:20:123
13985149988,0cyclictest0-21swapper/320:20:013
13985149988,0cyclictest0-21swapper/319:30:183
13985149988,0cyclictest0-21swapper/300:10:123
13985149988,0cyclictest0-21swapper/300:00:153
13985149980,7cyclictest0-21swapper/322:35:193
13985149977,0cyclictest0-21swapper/319:40:183
1396807271,4sleep30-21swapper/319:05:133
13985149966,0cyclictest0-21swapper/323:50:123
13985149966,0cyclictest0-21swapper/323:10:113
13985149966,0cyclictest0-21swapper/321:50:113
13985149966,0cyclictest0-21swapper/320:30:073
13985149960,5cyclictest0-21swapper/323:35:013
1480897253,1sleep2766-21snmpd22:35:052
13985149955,0cyclictest0-21swapper/320:40:003
13985149951,2cyclictest0-21swapper/323:20:133
13985149950,5cyclictest0-21swapper/319:15:153
1398009251,1sleep20-21swapper/219:05:402
1407503240,3sleep11407585-21open_inodes19:30:161
13985149940,3cyclictest1414450-21chrt19:50:063
1396680242,1sleep10-21swapper/119:05:071
1520675230,1sleep01520688-40unattended-upgr00:05:320
1514847230,1sleep01514873-21apt-get23:55:120
1490503230,2sleep01490756-21awk22:55:200
1397061231,0sleep00-21swapper/019:05:130
1532513220,1sleep21532663-21ntp_states00:35:172
1517027220,0sleep00-21swapper/000:00:130
1505394220,1sleep01505641-21awk23:30:190
1488863220,2sleep21488865-21ssh22:51:222
1478778220,1sleep00-21swapper/022:30:020
1472666220,0sleep00-21swapper/022:15:130
1471811220,0sleep00-21swapper/022:10:380
1470223220,1sleep01470244-21perf22:10:010
1468834220,1sleep21468915-21irqstats22:05:142
1466386220,1sleep01466548-21cpuspeed22:00:130
1452203220,1sleep00-21swapper/021:25:150
1444407220,1sleep11444518-21timerandwakeup21:05:181
1442181220,1sleep01442331-21ntp_states21:00:160
1441297220,2sleep01441301-21cron21:00:010
1440095220,1sleep21440247-21memory20:55:152
1435061220,1sleep00-21swapper/020:41:590
1426478220,1sleep11426680-21grep20:20:151
1422736220,1sleep21422886-21ntp_states20:10:152
1413162220,1sleep11413312-21ntp_states19:45:171
1410636220,1sleep01410719-21aten2.4-expect19:40:110
1406946220,1sleep21407220-21df_inode19:30:132
1402039220,1sleep01402290-21unixbench_singl19:15:180
1533459210,0sleep00-21swapper/000:37:420
1533223210,0sleep10-21swapper/100:35:361
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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