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2025-05-02 - 12:32
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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 Fri May 02, 2025 00:43:48)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
695421030,2sleep2871899cyclictest00:03:302
230982940,0sleep023074-21sshd00:11:100
90682790,1sleep341-21ksoftirqd/300:00:273
226502580,0sleep222655-21bash00:30:472
96782570,1sleep09652-21sshd22:15:300
230692570,1sleep3391rcuc/322:16:503
197532560,0sleep3401ktimersoftd/300:20:233
314822550,1sleep00-21swapper/023:56:290
175882550,0sleep00-21swapper/023:42:460
141432550,1sleep0646-21dbus-daemon21:30:170
134182550,1sleep21095-21nfsd00:10:162
279272530,0sleep00-21swapper/022:29:400
255942530,0sleep10-21swapper/121:49:361
220532530,0sleep10-21swapper/123:03:061
220532530,0sleep10-21swapper/123:03:051
204922530,0sleep30-21swapper/321:27:483
302572520,1sleep130246-21cp23:37:461
310972510,2sleep3872199cyclictest21:22:423
237772510,0sleep10-21swapper/100:01:571
88142490,0sleep30-21swapper/323:08:013
308272490,0sleep030829-21sshd00:21:320
91962470,0sleep10-21swapper/100:22:411
293372450,0sleep00-21swapper/023:03:500
293372450,0sleep00-21swapper/023:03:490
51962440,0sleep20-21swapper/222:05:562
234872360,1sleep323485-21lspci22:23:033
860323523,7sleep30-21swapper/319:09:583
84942309,7sleep10-21swapper/119:08:391
85842276,7sleep20-21swapper/219:09:492
229662220,0sleep00-21swapper/000:30:480
835522110,7sleep00-21swapper/019:06:540
272172200,1sleep127192-21sshd23:12:511
180582200,0sleep118055-21lspci23:52:041
296172180,0sleep20-21swapper/200:05:362
262472170,0sleep20-21swapper/223:49:492
115672170,0sleep10-21swapper/122:31:061
90052160,0sleep29008-21sshd22:30:512
8711991614,1cyclictest648-21systemd-logind00:06:060
64542160,0sleep30-21swapper/323:38:363
56722160,0sleep10-21swapper/123:32:221
129492160,0sleep00-21swapper/022:03:410
101952160,1sleep3391rcuc/322:55:433
147122150,1sleep314697-21sshd23:48:413
871199141,1cyclictest0-21swapper/021:25:460
871199140,13cyclictest4565-21lspci21:20:160
85812140,0sleep38577-21lspci23:04:573
85812140,0sleep38577-21lspci23:04:563
69492140,0sleep30-21swapper/323:50:583
324382140,0sleep30-21swapper/321:41:023
306962140,0sleep10-21swapper/123:25:321
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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