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2026-05-06 - 14:20
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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 Wed May 06, 2026 12:43:47)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
229891991311,1cyclictest0-21swapper/308:10:103
22989199130,11cyclictest0-21swapper/308:15:113
22989199121,0cyclictest0-21swapper/307:20:003
229891991210,1cyclictest0-21swapper/311:05:123
22989199120,1cyclictest0-21swapper/312:25:013
22989199120,11cyclictest0-21swapper/312:15:123
22989199120,11cyclictest0-21swapper/310:30:173
22989199120,11cyclictest0-21swapper/310:15:123
22989199120,11cyclictest0-21swapper/309:35:003
22989199120,11cyclictest0-21swapper/308:05:173
22989199118,1cyclictest0-21swapper/309:45:123
229891991111,0cyclictest0-21swapper/311:55:173
229891991111,0cyclictest0-21swapper/311:30:163
229891991111,0cyclictest0-21swapper/310:00:153
229891991111,0cyclictest0-21swapper/309:55:003
22989199110,10cyclictest0-21swapper/312:39:073
22989199110,10cyclictest0-21swapper/309:25:113
22989199110,10cyclictest0-21swapper/308:35:173
22989199110,10cyclictest0-21swapper/308:30:173
22989199110,0cyclictest0-21swapper/311:50:023
22989199110,0cyclictest0-21swapper/310:20:213
22989199110,0cyclictest0-21swapper/309:55:113
22989199110,0cyclictest0-21swapper/308:40:183
22989199110,0cyclictest0-21swapper/307:50:113
229891991010,0cyclictest0-21swapper/312:28:413
229891991010,0cyclictest0-21swapper/311:45:013
229891991010,0cyclictest0-21swapper/311:35:173
229891991010,0cyclictest0-21swapper/310:40:013
229891991010,0cyclictest0-21swapper/309:00:113
229891991010,0cyclictest0-21swapper/307:55:113
229891991010,0cyclictest0-21swapper/307:25:183
22989199100,0cyclictest0-21swapper/312:30:203
22989199100,0cyclictest0-21swapper/309:05:143
2298919999,0cyclictest0-21swapper/311:30:013
2298919999,0cyclictest0-21swapper/310:43:413
2298919999,0cyclictest0-21swapper/309:35:113
2298919999,0cyclictest0-21swapper/308:55:003
2298919998,0cyclictest0-21swapper/309:40:113
2298919998,0cyclictest0-21swapper/307:35:013
2298919990,8cyclictest0-21swapper/310:10:113
2298919988,0cyclictest0-21swapper/312:10:183
2298919988,0cyclictest0-21swapper/311:10:183
2298919988,0cyclictest0-21swapper/311:00:113
2298919988,0cyclictest0-21swapper/307:35:123
2298919988,0cyclictest0-21swapper/307:35:123
2298919987,0cyclictest0-21swapper/311:15:113
2298919977,0cyclictest0-21swapper/312:10:013
2298919977,0cyclictest0-21swapper/310:51:463
2298919977,0cyclictest0-21swapper/310:30:023
2298919977,0cyclictest0-21swapper/307:45:153
2298919976,1cyclictest0-21swapper/312:00:133
2298919976,0cyclictest0-21swapper/308:25:123
2298919970,6cyclictest0-21swapper/310:45:123
229628271,3sleep30-21swapper/307:08:303
2298919966,0cyclictest0-21swapper/311:23:553
2298919966,0cyclictest0-21swapper/310:55:123
2298919966,0cyclictest0-21swapper/309:20:163
2298919966,0cyclictest0-21swapper/307:40:183
2298919966,0cyclictest0-21swapper/307:20:113
2298919966,0cyclictest0-21swapper/307:10:183
2298919965,1cyclictest0-21swapper/308:50:003
2298919965,0cyclictest0-21swapper/308:00:123
2298919955,0cyclictest0-21swapper/311:50:043
2298919955,0cyclictest0-21swapper/310:07:443
2298919955,0cyclictest0-21swapper/309:15:113
2298919955,0cyclictest0-21swapper/309:10:203
2298919955,0cyclictest0-21swapper/308:20:203
2298919954,0cyclictest0-21swapper/308:56:083
332447241,2sleep0171ktimers/011:20:190
275292240,2sleep1275318-21apt-get09:05:121
243848242,1sleep0227909-21kworker/0:0+events07:41:290
229579242,1sleep10-21swapper/107:07:521
227837241,1sleep20-21swapper/207:05:012
309974230,1sleep1309995-21apt-get10:30:011
301274230,0sleep00-21swapper/010:06:540
257521230,1sleep1257545-21apt08:20:021
255853230,0sleep00-21swapper/008:15:120
233594230,2sleep1233727-21vmstat07:15:211
228073231,1sleep00-21swapper/007:05:030
363544220,1sleep1363694-21ntp_states12:35:171
353949220,0sleep00-21swapper/012:14:060
314680220,1sleep00-21swapper/010:40:120
301625220,1sleep20-21swapper/210:10:012
298723220,1sleep0299005-21users10:00:180
290945220,0sleep10-21swapper/109:42:461
289367220,1sleep2289468-21aten_r1power_fr09:40:112
279227220,0sleep00-21swapper/009:15:110
265717220,1sleep2265743-21apt-get08:40:122
262407220,1sleep1262579-21python308:30:171
251787220,1sleep2251992-21latency_hist08:05:022
244371220,1sleep20-21swapper/207:45:122
230778220,1sleep2230875-21pmu-power07:10:182
363375210,0sleep00-21swapper/012:35:160
362412210,0sleep20-21swapper/212:35:022
361880210,0sleep10-21swapper/112:30:201
360576210,0sleep00-21swapper/012:30:120
360325210,0sleep20-21swapper/212:30:012
359895210,0sleep20-21swapper/212:26:132
359860210,1sleep10-21swapper/112:25:521
358480210,1sleep00-21swapper/012:25:030
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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