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2025-08-27 - 14:34
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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
Compare latency of primary with shadow system
Characteristics of the 100 highest latencies:
System rack8slot4.osadl.org (updated Wed Aug 27, 2025 00:44:46)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
748752236171,22sleep30-21swapper/319:05:213
770372227165,20sleep10-21swapper/119:08:321
769862222166,17sleep40-21swapper/419:07:474
749062219166,41sleep50-21swapper/519:05:475
769672218162,17sleep70-21swapper/719:07:347
748942218185,21sleep20-21swapper/219:05:362
771192212183,18sleep60-21swapper/619:09:426
748812209180,18sleep00-21swapper/019:05:260
77356995858,0cyclictest0-21swapper/723:43:227
2083122510,1sleep00-21swapper/023:06:220
77334994040,0cyclictest0-21swapper/023:43:220
7735099320,31cyclictest216677-21sh23:25:005
7733499320,31cyclictest1202534-21systemd-journal22:05:000
7735699310,30cyclictest235524-21sh00:00:007
7733699310,30cyclictest162541-21latency_hist21:45:011
7735699300,29cyclictest0-21swapper/722:00:017
7735699300,29cyclictest0-21swapper/720:01:117
7735699300,29cyclictest0-21swapper/720:01:117
7735699300,1cyclictest211285-21latency_hist23:15:007
7735499300,29cyclictest96772-21idleruntime-cro19:45:006
7735499300,29cyclictest0-21swapper/623:26:106
7734599300,29cyclictest146094-21sh21:15:014
7733999300,29cyclictest1202534-21systemd-journal22:35:002
7733999300,29cyclictest1202534-21systemd-journal21:35:012
77336993028,1cyclictest168419-21apt-get21:56:121
7733699300,2cyclictest200509-21idleruntime-cro22:55:001
7733499300,29cyclictest238332-21sh00:05:000
77356992926,2cyclictest208603-21munin-run23:10:007
7735699290,28cyclictest0-21swapper/700:29:367
77354992927,1cyclictest0-21swapper/623:51:116
77354992927,1cyclictest0-21swapper/619:57:346
7735499290,28cyclictest0-21swapper/623:00:226
7735499290,28cyclictest0-21swapper/622:07:406
7735499290,28cyclictest0-21swapper/621:12:186
7735499290,28cyclictest0-21swapper/620:24:276
7735499290,28cyclictest0-21swapper/620:06:126
7735499290,28cyclictest0-21swapper/620:06:126
7735499290,28cyclictest0-21swapper/600:06:116
7735499290,1cyclictest171130-21apt-get22:01:136
7735099290,28cyclictest0-21swapper/523:01:265
7735099290,28cyclictest0-21swapper/522:39:565
7735099290,28cyclictest0-21swapper/521:41:145
7735099290,28cyclictest0-21swapper/500:33:225
7735099290,28cyclictest0-21swapper/500:21:005
7735099290,28cyclictest0-21swapper/500:15:055
7734599290,28cyclictest105-21kcompactd021:21:264
7734599290,28cyclictest0-21swapper/423:32:374
7734599290,28cyclictest0-21swapper/422:58:454
7734599290,28cyclictest0-21swapper/419:46:124
7734599290,1cyclictest211782-21apt-get23:16:134
77340992928,1cyclictest105099-21cron20:00:003
7734099290,28cyclictest0-21swapper/321:59:043
7734099290,28cyclictest0-21swapper/319:15:063
7734099290,28cyclictest0-21swapper/300:11:193
7734099290,1cyclictest135547-21apt-get20:56:103
7734099290,1cyclictest0-21swapper/322:56:093
77339992928,1cyclictest0-21swapper/223:40:082
77339992927,1cyclictest102424-21munin-run19:55:002
7733999290,28cyclictest0-21swapper/200:37:402
7733999290,28cyclictest0-21swapper/200:37:402
7733999290,28cyclictest0-21swapper/200:05:252
77336992928,1cyclictest187545-21apt-get22:31:141
77336992927,1cyclictest118632-21sh20:25:011
77336992927,1cyclictest0-21swapper/123:11:151
7733699290,28cyclictest146597-21apt-get21:16:131
7733699290,28cyclictest105-21kcompactd022:20:351
7733699290,28cyclictest0-21swapper/123:40:001
7733699290,28cyclictest0-21swapper/123:26:101
7733699290,28cyclictest0-21swapper/120:37:541
7733699290,28cyclictest0-21swapper/119:12:251
7733699290,28cyclictest0-21swapper/100:34:261
7733699290,28cyclictest0-21swapper/100:25:181
77334992926,2cyclictest1-21systemd21:00:010
7733499290,28cyclictest0-21swapper/023:21:150
7733499290,28cyclictest0-21swapper/019:26:240
7733499290,28cyclictest0-21swapper/000:27:590
77356992827,1cyclictest105-21kcompactd022:06:047
77356992827,1cyclictest0-21swapper/700:01:117
77356992825,2cyclictest102909-21apt-get19:56:127
7735699280,28cyclictest0-21swapper/721:03:427
7735699280,28cyclictest0-21swapper/700:34:597
7735699280,27cyclictest0-21swapper/723:27:477
7735699280,0cyclictest0-21swapper/723:16:137
7735699280,0cyclictest0-21swapper/720:46:307
7735699280,0cyclictest0-21swapper/720:31:107
7735699280,0cyclictest0-21swapper/719:25:197
77354992828,0cyclictest0-21swapper/619:39:186
77354992827,1cyclictest0-21swapper/620:55:066
77354992826,1cyclictest0-21swapper/619:46:176
7735499280,27cyclictest0-21swapper/620:26:366
7735499280,27cyclictest0-21swapper/619:17:486
7735499280,0cyclictest105-21kcompactd019:12:256
77350992827,1cyclictest0-21swapper/519:26:115
77345992828,0cyclictest0-21swapper/421:56:234
77345992828,0cyclictest0-21swapper/421:26:124
77345992827,1cyclictest105-21kcompactd023:55:124
77345992826,1cyclictest105-21kcompactd019:50:354
77345992825,2cyclictest162543-21idleruntime-cro21:45:014
7734599280,0cyclictest0-21swapper/423:51:114
7734599280,0cyclictest0-21swapper/400:01:114
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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