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2026-05-01 - 06:07
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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 100 highest latencies:
System rack1slot3.osadl.org (updated Fri May 01, 2026 00:43:47)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
285692699140,11cyclictest0-21swapper/319:10:123
285692699130,11cyclictest0-21swapper/323:40:153
285692699130,11cyclictest0-21swapper/320:45:103
2856926991211,0cyclictest0-21swapper/319:15:123
285692699120,8cyclictest0-21swapper/319:35:103
285692699120,11cyclictest0-21swapper/320:45:013
285692699120,11cyclictest0-21swapper/300:10:013
285692699120,10cyclictest0-21swapper/321:30:133
2856926991111,0cyclictest0-21swapper/322:45:133
2856926991110,0cyclictest0-21swapper/321:05:133
2856926991110,0cyclictest0-21swapper/319:55:123
285692699110,10cyclictest0-21swapper/323:10:003
285692699110,10cyclictest0-21swapper/322:35:203
285692699110,0cyclictest0-21swapper/322:25:113
285692699110,0cyclictest0-21swapper/322:05:123
285692699110,0cyclictest0-21swapper/321:50:123
285692699109,0cyclictest0-21swapper/323:20:193
285692699109,0cyclictest0-21swapper/320:05:143
285692699109,0cyclictest0-21swapper/319:45:123
285692699109,0cyclictest0-21swapper/300:15:133
285692699108,1cyclictest0-21swapper/322:40:113
2856926991010,0cyclictest0-21swapper/322:20:173
2856926991010,0cyclictest0-21swapper/300:20:123
2856926991010,0cyclictest0-21swapper/300:15:013
285692699100,9cyclictest0-21swapper/320:35:163
285692699100,0cyclictest0-21swapper/323:50:203
285692699100,0cyclictest0-21swapper/323:45:183
285692699100,0cyclictest0-21swapper/322:00:113
285692699100,0cyclictest0-21swapper/320:35:013
28569269999,0cyclictest0-21swapper/322:50:123
28569269999,0cyclictest0-21swapper/321:45:173
28569269999,0cyclictest0-21swapper/321:39:443
28569269999,0cyclictest0-21swapper/321:10:153
28569269999,0cyclictest0-21swapper/300:00:003
28569269998,0cyclictest0-21swapper/321:20:183
28569269990,9cyclictest0-21swapper/319:27:023
28569269990,8cyclictest0-21swapper/323:05:013
28569269990,8cyclictest0-21swapper/322:15:123
28569269990,8cyclictest0-21swapper/321:25:013
28569269988,0cyclictest0-21swapper/319:40:123
28569269988,0cyclictest0-21swapper/300:00:133
28569269980,6cyclictest0-21swapper/320:25:113
2855183281,5sleep30-21swapper/319:05:123
28569269977,0cyclictest0-21swapper/321:40:113
28569269977,0cyclictest0-21swapper/319:20:143
28569269977,0cyclictest0-21swapper/300:40:013
28569269976,1cyclictest0-21swapper/320:10:123
28569269976,0cyclictest0-21swapper/323:15:133
28569269976,0cyclictest0-21swapper/300:30:153
28569269970,6cyclictest0-21swapper/321:15:133
28569269966,0cyclictest0-21swapper/323:35:193
28569269966,0cyclictest0-21swapper/323:10:133
28569269966,0cyclictest0-21swapper/322:55:133
28569269966,0cyclictest0-21swapper/321:55:123
28569269966,0cyclictest0-21swapper/320:20:013
28569269966,0cyclictest0-21swapper/300:28:023
28569269955,0cyclictest0-21swapper/322:10:203
28569269955,0cyclictest0-21swapper/321:00:163
28569269955,0cyclictest0-21swapper/321:00:163
28569269955,0cyclictest0-21swapper/320:55:013
2990027243,1sleep02941327-21kworker/0:1+events00:37:220
28569269944,0cyclictest0-21swapper/320:55:183
28569269944,0cyclictest0-21swapper/320:20:183
28569269944,0cyclictest0-21swapper/319:34:513
28569269940,3cyclictest2963981-21chrt23:30:323
28569269940,3cyclictest2938433-21chrt22:30:203
28569269940,3cyclictest2873137-21chrt19:50:063
2856581242,1sleep10-21swapper/119:07:231
2856478242,1sleep20-21swapper/219:06:042
2855289240,2sleep02855551-21df_inode19:05:130
2987286230,2sleep22987402-21switchtime00:30:202
2948039230,1sleep12948065-21apt-get22:55:121
28569269933,0cyclictest0-21swapper/323:25:183
28569269933,0cyclictest0-21swapper/320:02:523
2988496220,0sleep22988522-21apt-get00:35:122
2984498220,1sleep00-21swapper/000:25:180
2984343220,0sleep22984369-21apt-get00:25:152
2983148220,1sleep12983299-21grep00:20:181
2981983220,1sleep02982069-21sed00:20:000
2978514220,1sleep02978583-21irqstats00:10:130
2971534220,1sleep0766-21snmpd23:50:180
2953866220,0sleep00-21swapper/023:08:250
2951956220,0sleep00-21swapper/023:04:570
2950754220,0sleep10-21swapper/123:00:171
2939124220,1sleep21-21systemd22:35:012
2933027220,1sleep00-21swapper/022:20:140
2928409220,1sleep22928413-21ssh22:09:512
2918001220,1sleep22918144-21cat21:45:012
2912080220,1sleep00-21swapper/021:30:030
2909576220,1sleep20-21swapper/221:24:552
2906966220,1sleep00-21swapper/021:15:220
2887079220,1sleep12887281-21ntpq20:25:161
2885626220,1sleep02885928-21unixbench_singl20:20:180
2875757220,0sleep00-21swapper/019:55:160
2864068220,1sleep12864254-21grep19:25:161
2861394220,1sleep12861480-21telnet19:20:121
2860390220,1sleep02860596-21cat19:15:180
2989431210,0sleep10-21swapper/100:35:191
2987168210,0sleep10-21swapper/100:30:191
2986999210,0sleep00-21swapper/000:30:180
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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