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2025-05-02 - 12:51
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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 rack7slot1.osadl.org (updated Fri May 02, 2025 00:45:43)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
923521320,1sleep09755-21stress23:31:380
19639211655,56sleep20-21swapper/219:05:272
19763211451,58sleep10-21swapper/119:06:591
19795210450,49sleep00-21swapper/019:07:220
2257221020,1sleep122573-21ls21:35:391
2257221020,1sleep122573-21ls21:35:391
1964828958,26sleep30-21swapper/319:05:333
20112995012,20cyclictest0-21swapper/121:21:591
20112994910,18cyclictest0-21swapper/122:37:041
59632460,1sleep19753-21stress22:11:431
59632460,1sleep19753-21stress22:11:421
20112994411,18cyclictest0-21swapper/121:11:071
241552395,13sleep20-21swapper/220:29:202
20114993915,21cyclictest0-21swapper/323:37:153
20114993915,21cyclictest0-21swapper/323:37:153
20114993915,17cyclictest0-21swapper/321:40:083
20114993915,17cyclictest0-21swapper/321:40:083
20114993914,22cyclictest0-21swapper/323:46:563
300242385,13sleep20-21swapper/219:30:102
300242385,13sleep20-21swapper/219:30:102
272322385,13sleep20-21swapper/219:21:162
20114993815,15cyclictest0-21swapper/321:37:353
20114993815,15cyclictest0-21swapper/321:37:353
20114993812,23cyclictest0-21swapper/322:25:323
20112993811,24cyclictest0-21swapper/121:54:541
2011199389,19cyclictest0-21swapper/019:40:010
171952385,13sleep30-21swapper/320:11:013
151032385,13sleep20-21swapper/220:07:202
14822385,13sleep20-21swapper/219:36:242
127622385,14sleep30-21swapper/320:01:233
106552385,13sleep30-21swapper/319:58:193
286362375,13sleep20-21swapper/220:39:442
222342375,13sleep20-21swapper/219:14:222
221932374,13sleep30-21swapper/319:13:523
216352375,12sleep20-21swapper/220:20:472
20114993715,14cyclictest0-21swapper/323:40:133
20114993714,20cyclictest0-21swapper/322:02:243
2011299379,25cyclictest0-21swapper/100:25:251
20111993720,15cyclictest0-21swapper/020:52:580
20111993710,17cyclictest0-21swapper/020:43:050
196692375,13sleep20-21swapper/220:19:072
129442370,1sleep19753-21stress22:29:041
96552364,11sleep30-21swapper/321:09:563
96552364,11sleep30-21swapper/321:09:553
61002363,14sleep20-21swapper/219:47:512
60152364,12sleep30-21swapper/319:46:473
317322365,11sleep30-21swapper/319:32:003
317322365,11sleep30-21swapper/319:32:003
295002365,14sleep00-21swapper/019:26:520
27442364,11sleep30-21swapper/320:53:043
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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