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2026-07-05 - 09:00
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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 rackeslot8.osadl.org (updated Sun Jul 05, 2026 00:43:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
25952232770,1sleep30-21swapper/300:25:143
2132388993330,1cyclictest0-21swapper/321:45:003
213238899291,23cyclictest2224445-21turbostat20:19:593
2132388992825,1cyclictest0-21swapper/300:10:263
2132388992724,1cyclictest0-21swapper/300:20:063
2132388992420,2cyclictest0-21swapper/321:45:253
213238899241,10cyclictest2421943-21turbostat22:35:013
2132388992321,1cyclictest0-21swapper/322:15:263
2132388992321,1cyclictest0-21swapper/322:15:253
22646642220,2sleep0222-21plymouthd20:50:170
2132388992118,1cyclictest0-21swapper/323:40:063
2132388992118,1cyclictest0-21swapper/322:40:083
2132388992118,1cyclictest0-21swapper/300:36:213
213238899208,8cyclictest2359231-21turbostat21:54:593
2132388992017,1cyclictest0-21swapper/321:20:123
2132388992017,1cyclictest0-21swapper/320:50:183
2132388992017,1cyclictest0-21swapper/320:40:143
2132388992011,7cyclictest21926412sleep319:55:143
213238899201,15cyclictest2367915-21taskset22:00:163
213238899201,15cyclictest2230687-21taskset20:22:353
213238899201,14cyclictest2159915-21taskset19:26:143
213238899192,13cyclictest2204344-21taskset20:00:253
2132388991916,1cyclictest0-21swapper/321:00:193
2132388991915,1cyclictest0-21swapper/323:55:143
213238899191,14cyclictest2524019-21turbostat23:40:003
213238899191,14cyclictest2444749-21taskset22:48:083
213238899191,14cyclictest2312719-21taskset21:25:133
213238899191,13cyclictest2147350-21taskset19:19:573
2132388991910,7cyclictest21793202sleep319:43:023
25129732180,9sleep0151ktimers/023:30:190
21990592187,7sleep12198810-21sendmail-msp20:00:131
2132388991815,1cyclictest0-21swapper/323:30:193
2132388991815,1cyclictest0-21swapper/323:20:173
2132388991815,1cyclictest0-21swapper/322:40:003
2132388991815,1cyclictest0-21swapper/300:30:203
2132388991814,1cyclictest0-21swapper/323:50:243
213238899181,14cyclictest2533926-21taskset23:45:183
213238899181,14cyclictest2483471-21taskset23:11:373
213238899181,13cyclictest2579226-21chrt00:15:133
213238899181,13cyclictest2506785-21taskset23:25:493
213238899181,13cyclictest2459515-21taskset22:55:293
213238899181,13cyclictest2451146-21taskset22:50:253
213238899181,13cyclictest2404720-21taskset22:20:333
213238899181,13cyclictest2287644-21taskset21:05:203
213238899181,13cyclictest2275033-21taskset20:55:253
213238899181,13cyclictest2256828-21taskset20:45:113
213238899181,13cyclictest2240792-21taskset20:30:213
213238899181,13cyclictest2217958-21turbostat20:14:593
213238899181,13cyclictest2211228-21taskset20:05:473
213238899181,13cyclictest2153584-21taskset19:22:123
213238899181,13cyclictest2132583-21taskset19:10:053
213238899172,12cyclictest2413492-21taskset22:28:163
213238899172,12cyclictest2413492-21taskset22:28:153
213238899172,12cyclictest2296609-21taskset21:15:033
2132388991714,1cyclictest0-21swapper/323:15:193
2132388991714,1cyclictest0-21swapper/323:00:193
213238899171,13cyclictest2236921-21taskset20:25:393
213238899171,13cyclictest2192144-21taskset19:52:353
213238899171,13cyclictest2185716-21taskset19:47:353
213238899171,13cyclictest2172674-21taskset19:35:283
213238899171,12cyclictest2469311-21taskset23:05:083
213238899171,12cyclictest2388982-21taskset22:10:353
213238899171,12cyclictest2381203-21taskset22:05:393
213238899171,12cyclictest2359554-21chrt21:55:123
213238899171,12cyclictest2295073-21taskset21:11:293
213238899171,12cyclictest2165663-21taskset19:30:223
2132388991613,1cyclictest0-21swapper/300:05:203
213238899161,12cyclictest2561715-21taskset00:00:453
213238899161,12cyclictest2334353-21taskset21:36:123
213238899161,12cyclictest2326278-21taskset21:30:303
213238899161,11cyclictest2243906-21chrt20:35:013
22698272151,11sleep02269914-21grep20:55:160
25934512141,9sleep12593457-21ssh00:21:501
25870022141,3sleep22586734-21sendmail-msp00:20:102
23022772141,10sleep02302527-21users21:15:290
25243262131,4sleep12524363-21apt-get23:40:111
24833722131,9sleep02483378-21ssh23:11:230
24582462130,5sleep134-21ksoftirqd/122:55:201
23045272131,9sleep12304532-21sh21:20:021
22611562130,4sleep22261871-21sed20:45:192
21390462130,5sleep12139325-21ntp_states19:15:031
21321152130,2sleep30-21swapper/319:07:503
23511812120,8sleep02351187-21ssh21:49:240
22951092120,5sleep12295115-21ssh21:11:361
21529172120,4sleep22152956-21ntp_states19:20:242
25816412110,8sleep02583305-21cut00:15:180
24589192111,7sleep02458973-21/usr/sbin/munin22:55:240
24433092110,8sleep02443348-21ntpq22:45:380
23825622111,7sleep12382566-21ssh22:09:301
23503782110,3sleep12350384-21ssh21:47:121
23278702110,8sleep02328060-21wc21:35:020
22966952111,3sleep12296697-21apt-get21:15:141
22593522110,8sleep12261154-21cut20:45:191
22335792111,7sleep12235402-21cut20:25:181
22191972110,8sleep22220124-21grep20:15:162
25951282101,7sleep22595221-21sort00:25:142
25924122101,2sleep02592465-21/usr/sbin/munin00:20:240
25534032100,6sleep02553651-21unixbench_multi23:55:250
25258322100,7sleep02527244-21kthreadcore23:40:190
25149042101,6sleep12514908-21ssh23:31:371
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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