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2025-06-17 - 01:51
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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 rackdslot1.osadl.org (updated Mon Jun 16, 2025 12:45:37)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
221932810,5sleep00-21swapper/010:40:230
2847191660,6ptp4l15876-21unixbench_multi11:35:300
239322650,5sleep30-21swapper/308:25:223
2847191640,25ptp4l23129-21runrttasks10:44:123
7302630,6sleep2321ktimersoftd/212:15:012
2847191620,3ptp4l10128-21ntp_states09:05:290
281072610,5sleep00-21swapper/008:35:230
2847191600,4ptp4l0-21swapper/308:16:423
2847191570,3ptp4l0-21swapper/112:05:321
2847191570,3ptp4l0-21swapper/011:54:580
2847191560,4ptp4l0-21swapper/210:37:182
2847191560,3ptp4l0-21swapper/211:30:162
2847191560,3ptp4l0-21swapper/211:30:162
2847191560,11ptp4l0-21swapper/207:05:132
2847191550,5ptp4l0-21swapper/111:53:541
2847191550,3ptp4l0-21swapper/110:55:361
2847191540,5ptp4l0-21swapper/110:40:151
2847191540,5ptp4l0-21swapper/011:26:340
2847191540,3ptp4l0-21swapper/009:40:300
2847191530,4ptp4l0-21swapper/109:31:001
2847191530,4ptp4l0-21swapper/009:00:170
2847191520,5ptp4l0-21swapper/009:55:170
2847191520,4ptp4l0-21swapper/110:31:381
2847191520,3ptp4l0-21swapper/311:18:343
2847191510,4ptp4l0-21swapper/311:06:383
2847191510,4ptp4l0-21swapper/310:24:223
2847191510,4ptp4l0-21swapper/208:29:282
2847191510,4ptp4l0-21swapper/112:24:121
2847191510,4ptp4l0-21swapper/109:41:101
2847191500,4ptp4l0-21swapper/012:04:140
2847191500,3ptp4l0-21swapper/211:45:272
2847191500,3ptp4l0-21swapper/211:14:122
2847191490,8ptp4l17856-21apt-get07:05:133
2847191490,8ptp4l16206-21apt-get09:20:152
2847191490,5ptp4l0-21swapper/211:41:042
2847191490,4ptp4l0-21swapper/112:39:301
2847191490,4ptp4l0-21swapper/112:39:301
2847191490,4ptp4l0-21swapper/111:31:201
2847191490,4ptp4l0-21swapper/111:31:201
2847191490,4ptp4l0-21swapper/111:11:311
2847191490,4ptp4l0-21swapper/109:13:201
2847191490,4ptp4l0-21swapper/008:52:430
2847191490,3ptp4l0-21swapper/208:42:222
2847191490,3ptp4l0-21swapper/007:38:340
2847191490,12ptp4l0-21swapper/307:58:333
2847191480,4ptp4l0-21swapper/210:26:482
2847191480,4ptp4l0-21swapper/109:20:381
2847191480,4ptp4l0-21swapper/107:58:231
2847191480,4ptp4l0-21swapper/107:41:111
2847191480,4ptp4l0-21swapper/010:46:180
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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