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2025-11-09 - 01:01
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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 Sat Nov 08, 2025 12:43:48)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
296162840,1sleep129618-21grepconf.sh10:29:391
296162840,1sleep129618-21grepconf.sh10:29:391
88742670,0sleep30-21swapper/309:55:293
184332640,0sleep10-21swapper/110:31:591
187922630,1sleep1231rcuc/109:18:531
54732620,0sleep10-21swapper/111:45:211
245202610,0sleep00-21swapper/011:17:480
233772600,0sleep20-21swapper/211:47:062
199992600,0sleep219993-21lspci10:32:162
6072580,1sleep1605-21lspci12:30:551
221002560,0sleep00-21swapper/012:02:180
135822560,0sleep10-21swapper/109:14:451
295422550,0sleep30-21swapper/309:54:213
62402540,1sleep1231rcuc/111:35:441
277302540,0sleep327729-21sshd11:44:313
151132540,1sleep20-21swapper/212:35:202
109732540,0sleep20-21swapper/209:10:142
104712540,0sleep30-21swapper/310:24:003
151832530,0sleep20-21swapper/208:25:132
200942510,0sleep00-21swapper/009:22:210
272072500,1sleep127210-21bash11:59:471
92942490,0sleep00-21swapper/011:36:030
86272480,0sleep30-21swapper/310:55:123
214892480,1sleep10-21swapper/110:39:241
1498524835,7sleep30-21swapper/307:05:153
134662480,0sleep10-21swapper/109:59:271
71192470,0sleep30-21swapper/309:28:013
1578724332,7sleep10-21swapper/107:05:291
141592420,0sleep00-21swapper/010:45:200
269802400,0sleep00-21swapper/010:57:060
100212400,0sleep10-21swapper/112:22:381
1601522924,3sleep00-21swapper/007:08:250
143552287,7sleep20-21swapper/207:05:062
144412240,2sleep31625799cyclictest12:35:173
296962170,1sleep229689-21sshd10:47:062
186512170,1sleep3391rcuc/310:49:243
13952170,1sleep10-21swapper/112:37:081
205182160,0sleep00-21swapper/009:50:050
1625699160,13cyclictest33-21ksoftirqd/212:13:442
16252991615,0cyclictest30288-21kworker/0:209:47:100
15432160,0sleep20-21swapper/209:51:232
41912150,0sleep10-21swapper/111:08:321
181792150,1sleep00-21swapper/011:49:440
115572150,1sleep211556-21sshd11:58:162
53752140,0sleep10-21swapper/109:45:011
275632140,0sleep30-21swapper/310:25:453
275632140,0sleep30-21swapper/310:25:443
16252991414,0cyclictest8326-21kworker/0:011:29:160
16252991413,0cyclictest30288-21kworker/0:210:06:040
16252991413,0cyclictest22604-21kworker/0:112:10:320
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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