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2025-10-27 - 09:29
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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 50 highest latencies:
System rack2slot0.osadl.org (updated Mon Oct 27, 2025 00:43:48)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2215821030,1sleep00-21swapper/023:06:580
54952980,0sleep10-21swapper/100:10:321
255962890,0sleep10-21swapper/123:07:191
186332800,0sleep218600-21sshd21:49:262
22352700,0sleep20-21swapper/222:45:262
164292600,1sleep316427-21lspci23:25:563
276772590,0sleep20-21swapper/222:31:562
183092560,1sleep018276-21sshd23:39:070
183092560,1sleep018276-21sshd23:39:070
126422560,0sleep10-21swapper/123:38:321
126422560,0sleep10-21swapper/123:38:321
151762550,0sleep02636199cyclictest21:55:250
75512540,0sleep30-21swapper/300:10:463
35342540,0sleep00-21swapper/000:20:520
314602530,0sleep10-21swapper/123:43:401
185432530,0sleep20-21swapper/223:19:452
90892520,0sleep20-21swapper/223:25:152
221832510,1sleep322170-21cp23:52:273
221022510,0sleep10-21swapper/123:13:321
302272500,0sleep030222-21sshd23:59:490
236962500,0sleep20-21swapper/223:20:142
31472490,0sleep13148-21ps22:55:181
223112490,1sleep233-21ksoftirqd/222:41:012
164882490,2sleep22637099cyclictest21:52:232
4292480,0sleep1418-21sshd22:06:481
292102480,0sleep30-21swapper/300:20:113
188262480,0sleep10-21swapper/122:40:401
103152480,0sleep20-21swapper/223:38:172
103152480,0sleep20-21swapper/223:38:172
138412470,0sleep00-21swapper/022:49:560
7012460,0sleep00-21swapper/000:27:450
295582450,0sleep00-21swapper/022:25:410
273232450,2sleep02636199cyclictest00:16:240
266032450,0sleep10-21swapper/121:43:491
21802430,0sleep00-21swapper/022:39:070
256132420,0sleep20-21swapper/222:25:182
263502390,0sleep00-21swapper/023:33:260
205312370,0sleep00-21swapper/000:37:060
2606422615,7sleep00-21swapper/019:07:320
237202240,1sleep223711-21lspci22:05:532
2606622312,7sleep20-21swapper/219:07:342
2598322210,7sleep30-21swapper/319:06:353
2588522211,7sleep10-21swapper/119:05:251
120632180,0sleep30-21swapper/321:26:093
260162170,0sleep20-21swapper/222:19:022
135432170,0sleep00-21swapper/022:24:130
111252160,0sleep10-21swapper/100:25:181
79072150,0sleep20-21swapper/200:21:222
322562150,0sleep30-21swapper/322:45:153
316702150,0sleep30-21swapper/322:55:003
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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