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2026-05-06 - 07:22
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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 Wed May 06, 2026 00:43:47)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
237885199159,1cyclictest0-21swapper/322:55:113
237885199140,12cyclictest0-21swapper/323:20:103
2378851991311,1cyclictest0-21swapper/320:05:133
237885199130,12cyclictest0-21swapper/321:55:133
237885199130,11cyclictest0-21swapper/320:30:113
237885199130,11cyclictest0-21swapper/319:20:123
2378851991211,0cyclictest0-21swapper/319:30:003
237885199120,11cyclictest0-21swapper/320:50:123
237885199120,11cyclictest0-21swapper/320:10:133
237885199120,10cyclictest0-21swapper/321:00:113
237885199120,0cyclictest0-21swapper/321:05:143
2378851991111,0cyclictest0-21swapper/323:55:123
2378851991111,0cyclictest0-21swapper/323:45:143
2378851991110,1cyclictest0-21swapper/321:50:123
237885199110,10cyclictest0-21swapper/322:10:173
237885199110,10cyclictest0-21swapper/320:20:173
237885199110,10cyclictest0-21swapper/319:35:123
237885199110,0cyclictest0-21swapper/322:05:113
237885199110,0cyclictest0-21swapper/321:40:143
237885199110,0cyclictest0-21swapper/321:20:183
237885199110,0cyclictest0-21swapper/321:20:173
2378851991010,0cyclictest0-21swapper/323:15:183
2378851991010,0cyclictest0-21swapper/321:45:113
2378851991010,0cyclictest0-21swapper/321:30:343
2378851991010,0cyclictest0-21swapper/321:15:133
2378851991010,0cyclictest0-21swapper/319:10:193
2378851991010,0cyclictest0-21swapper/300:25:123
2378851991010,0cyclictest0-21swapper/300:15:133
2378851991010,0cyclictest0-21swapper/300:09:563
237885199100,9cyclictest0-21swapper/323:35:123
237885199100,9cyclictest0-21swapper/323:10:163
237885199100,10cyclictest0-21swapper/320:35:213
237885199100,0cyclictest0-21swapper/322:25:123
237885199100,0cyclictest0-21swapper/319:46:083
237885199100,0cyclictest0-21swapper/319:20:013
23788519999,0cyclictest0-21swapper/320:29:563
23788519998,0cyclictest0-21swapper/322:15:153
23788519988,0cyclictest0-21swapper/323:05:183
23788519988,0cyclictest0-21swapper/322:45:133
23788519988,0cyclictest0-21swapper/321:10:153
23788519988,0cyclictest0-21swapper/320:45:123
23788519988,0cyclictest0-21swapper/320:45:013
23788519988,0cyclictest0-21swapper/319:50:123
23788519987,1cyclictest0-21swapper/300:20:143
23788519987,0cyclictest0-21swapper/322:40:113
23788519987,0cyclictest0-21swapper/300:10:193
2376792281,4sleep30-21swapper/319:05:013
2471305270,1sleep01-21systemd23:00:000
2432258275,1sleep12432447-21head21:25:161
23788519977,0cyclictest0-21swapper/320:55:183
23788519977,0cyclictest0-21swapper/319:30:113
23788519977,0cyclictest0-21swapper/300:30:173
23788519976,0cyclictest0-21swapper/323:40:113
23788519976,0cyclictest0-21swapper/323:25:163
23788519976,0cyclictest0-21swapper/319:55:153
23788519966,0cyclictest0-21swapper/323:33:193
23788519966,0cyclictest0-21swapper/323:05:013
23788519965,0cyclictest0-21swapper/322:35:163
23788519960,5cyclictest0-21swapper/300:35:203
23788519955,0cyclictest0-21swapper/321:39:023
23788519955,0cyclictest0-21swapper/319:40:093
23788519954,0cyclictest0-21swapper/322:20:123
23788519951,2cyclictest0-21swapper/323:50:123
2511752240,2sleep22511778-21apt-get00:35:132
2475329240,3sleep02475331-21ssh23:08:380
2427750240,3sleep22427779-21dpkg21:15:112
2425725240,2sleep12425751-21apt-get21:10:111
2424610240,3sleep22424781-21python321:05:202
23788519944,0cyclictest0-21swapper/321:25:133
23788519940,3cyclictest2497153-21chrt00:00:063
23788519940,3cyclictest2459029-21chrt22:30:013
23788519940,3cyclictest2405536-21chrt20:15:173
23788519940,3cyclictest2398934-21chrt20:00:123
23788519940,2cyclictest0-21swapper/322:50:123
2378355241,2sleep10-21swapper/119:05:351
2482441230,2sleep12482526-21ssh23:25:151
2471579230,1sleep02471607-21apt-get23:00:130
2443812232,1sleep22443814-21ssh21:51:422
2435373230,1sleep02435394-21apt-get21:30:350
2408484230,2sleep12408555-21aten_r1power_en20:25:121
2402728230,1sleep22402754-21apt-get20:10:122
2394923230,2sleep12395185-21cstates19:50:141
2383747230,1sleep02383831-21irqstats19:20:150
23788519933,0cyclictest0-21swapper/322:00:023
2377755231,1sleep00-21swapper/019:05:220
2377485231,1sleep20-21swapper/219:05:202
2511880220,1sleep10-21swapper/100:35:161
2506135220,1sleep12506285-21ntp_states00:20:191
2501072220,1sleep00-21swapper/000:10:000
2494554220,0sleep10-21swapper/123:52:521
2492622220,0sleep20-21swapper/223:49:132
2488803220,1sleep02488894-21/usr/sbin/munin23:40:120
2485925220,1sleep22486096-21latency_hist23:35:012
2481599220,0sleep00-21swapper/023:23:390
2479927220,1sleep12479953-21apt-get23:20:101
2472199220,1sleep12472349-21ntp_states23:00:181
2459217220,1sleep02459482-21diskstats22:30:140
2457250220,1sleep12457414-21fw_packets22:25:151
2450328220,1sleep22450330-21ssh22:09:002
2444514220,1sleep12444708-21cpuspeed_turbos21:55:141
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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