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2025-05-21 - 12:54
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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 Wed May 21, 2025 00:43:48)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
283122950,0sleep20-21swapper/223:12:192
64102740,1sleep26408-21grep20:20:182
59982600,0sleep00-21swapper/021:53:510
271012580,0sleep00-21swapper/022:32:170
41252570,1sleep1241ktimersoftd/121:26:161
37912570,0sleep00-21swapper/021:38:250
280432540,0sleep00-21swapper/023:12:180
21802540,0sleep20-21swapper/221:41:152
230412530,1sleep1241ktimersoftd/122:31:541
218462520,2sleep2857199cyclictest23:08:432
278322510,1sleep127822-21sshd22:53:561
120302510,1sleep211948-21sshd21:24:012
248212500,0sleep30-21swapper/300:13:323
219732500,0sleep20-21swapper/200:00:262
91522480,1sleep09153-21systemd-cgroups21:29:520
239122480,0sleep20-21swapper/223:33:142
141732470,0sleep00-21swapper/021:33:210
98372460,0sleep10-21swapper/100:18:351
97422460,0sleep09732-21cp23:19:500
15432440,0sleep31542-21bash21:10:163
181792430,0sleep3391rcuc/321:39:483
27762420,2sleep2857199cyclictest22:33:032
83522410,1sleep08349-21lspci23:31:450
13492390,0sleep10-21swapper/100:11:061
285382350,0sleep20-21swapper/223:18:322
84222309,7sleep10-21swapper/119:09:351
240012300,0sleep00-21swapper/000:23:240
822822716,7sleep00-21swapper/019:07:100
82162265,7sleep30-21swapper/319:07:023
817422110,7sleep20-21swapper/219:06:322
189162210,0sleep20-21swapper/222:56:062
301462190,1sleep1231rcuc/100:04:211
194022190,1sleep319399-21lspci21:55:063
86282180,0sleep00-21swapper/021:11:090
24962170,0sleep20-21swapper/222:42:202
223942170,1sleep3401ktimersoftd/322:28:503
314312160,1sleep031402-21sshd00:30:560
242072160,0sleep20-21swapper/223:27:092
309872150,1sleep31-21systemd23:30:473
205012150,1sleep10-21swapper/122:13:261
195282150,0sleep30-21swapper/323:45:013
8570991412,1cyclictest11467-21kworker/1:200:26:071
857099140,13cyclictest0-21swapper/121:21:571
229772140,0sleep122973-21lspci22:44:191
857199130,12cyclictest0-21swapper/222:11:432
857099130,1cyclictest646-21dbus-daemon22:20:471
8566991311,1cyclictest26186-21lspci22:07:550
44112130,0sleep20-21swapper/221:17:092
324152130,0sleep20-21swapper/222:35:462
208622130,0sleep30-21swapper/322:13:283
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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