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2026-05-02 - 11:31
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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 Sat May 02, 2026 00:43:46)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
278855799137,5cyclictest0-21swapper/321:45:123
2788557991311,1cyclictest0-21swapper/320:20:113
278855799130,11cyclictest0-21swapper/300:00:123
278855799120,11cyclictest0-21swapper/323:15:123
278855799120,11cyclictest0-21swapper/321:45:013
278855799120,11cyclictest0-21swapper/320:15:003
278855799120,11cyclictest0-21swapper/319:45:003
278855799120,0cyclictest0-21swapper/321:50:113
278855799119,1cyclictest0-21swapper/320:30:113
2788557991111,0cyclictest0-21swapper/321:00:183
2788557991111,0cyclictest0-21swapper/300:05:183
2788557991110,0cyclictest0-21swapper/319:45:143
2788557991110,0cyclictest0-21swapper/319:30:103
278855799110,8cyclictest0-21swapper/323:00:203
278855799110,11cyclictest0-21swapper/319:15:003
278855799110,10cyclictest0-21swapper/323:40:143
278855799110,10cyclictest0-21swapper/322:45:023
278855799110,10cyclictest0-21swapper/320:45:173
278855799110,10cyclictest0-21swapper/300:30:133
278855799109,0cyclictest0-21swapper/321:30:113
278855799109,0cyclictest0-21swapper/321:20:113
278855799109,0cyclictest0-21swapper/319:15:103
278855799108,1cyclictest2871742-21turbostat22:39:563
278855799108,1cyclictest0-21swapper/320:50:103
2788557991010,0cyclictest0-21swapper/323:31:583
2788557991010,0cyclictest0-21swapper/322:25:133
2788557991010,0cyclictest0-21swapper/321:25:133
2788557991010,0cyclictest0-21swapper/321:19:563
2788557991010,0cyclictest0-21swapper/320:19:273
2788557991010,0cyclictest0-21swapper/319:25:013
2788557991010,0cyclictest0-21swapper/300:40:013
278855799100,9cyclictest0-21swapper/322:20:013
278855799100,9cyclictest0-21swapper/320:05:163
278855799100,10cyclictest0-21swapper/323:10:013
278855799100,10cyclictest0-21swapper/319:25:163
278855799100,0cyclictest0-21swapper/322:15:163
278855799100,0cyclictest0-21swapper/322:05:173
278855799100,0cyclictest0-21swapper/319:50:123
27885579999,0cyclictest0-21swapper/322:10:133
27885579999,0cyclictest0-21swapper/321:35:163
27885579999,0cyclictest0-21swapper/320:00:133
27885579998,1cyclictest0-21swapper/320:40:143
27885579998,0cyclictest0-21swapper/300:20:133
27885579990,8cyclictest0-21swapper/320:25:003
27885579990,0cyclictest0-21swapper/323:50:023
27885579988,0cyclictest0-21swapper/323:50:123
27885579988,0cyclictest0-21swapper/322:55:183
27885579988,0cyclictest0-21swapper/321:55:033
27885579987,0cyclictest0-21swapper/300:25:193
27885579980,7cyclictest0-21swapper/300:15:133
27885579980,6cyclictest0-21swapper/323:35:113
27885579977,0cyclictest0-21swapper/322:45:123
2787187271,4sleep30-21swapper/319:05:163
2801835260,0sleep1341rcuc/119:40:151
27885579966,0cyclictest0-21swapper/323:11:383
27885579966,0cyclictest0-21swapper/322:30:113
27885579966,0cyclictest0-21swapper/321:10:143
27885579966,0cyclictest0-21swapper/319:55:153
27885579965,0cyclictest0-21swapper/322:04:083
27885579960,6cyclictest0-21swapper/300:00:003
27885579960,0cyclictest0-21swapper/322:50:173
27885579960,0cyclictest0-21swapper/320:35:103
27885579955,0cyclictest0-21swapper/321:05:113
2842184240,3sleep12842486-21/usr/sbin/munin21:25:131
2798682243,1sleep02792813-21kworker/0:0+events19:33:500
27885579944,0cyclictest0-21swapper/323:21:333
27885579944,0cyclictest0-21swapper/320:55:083
27885579944,0cyclictest0-21swapper/319:36:123
27885579943,0cyclictest0-21swapper/300:10:123
27885579940,3cyclictest2893128-21chrt23:25:103
2788055242,1sleep20-21swapper/219:05:262
2786502242,1sleep10-21swapper/119:05:011
2900397230,2sleep02900468-21sed23:40:170
2888676230,1sleep12888702-21apt-get23:15:121
2879919232,1sleep02852701-21kworker/0:1+events22:53:420
2850835230,2sleep12850859-21apt21:45:111
2816288230,2sleep02816384-21cat20:20:000
2797109230,1sleep12797135-21apt-get19:30:101
2791085230,1sleep22791111-21apt-get19:15:102
2786749231,1sleep00-21swapper/019:05:120
2923004220,1sleep00-21swapper/000:33:450
2919722220,1sleep12919844-21grep00:25:171
2918462220,1sleep12918519-21munin-run00:25:011
2914011220,0sleep22914028-21apt-get00:15:022
2903280220,0sleep00-21swapper/023:47:250
2898005220,1sleep22898163-21sed23:35:162
2897283220,1sleep22897287-21ssh23:34:502
2888328220,0sleep00-21swapper/023:14:120
2870654220,1sleep02870779-21sendmail_mailqu22:30:170
2868419220,1sleep02868573-21ntp_states22:25:160
2867549220,1sleep12867719-21latency_hist22:25:011
2860293220,1sleep00-21swapper/022:05:190
2858935220,1sleep22858951-21munin-run22:05:012
2838550220,1sleep22838703-21systemctl21:15:182
2833804220,1sleep00-21swapper/021:05:110
2820614220,1sleep02820812-21diskstats20:30:140
2808617220,1sleep12808651-21sendmail20:00:001
2808453220,0sleep20-21swapper/219:57:572
2804768221,1sleep0171ktimers/019:49:420
2798117220,1sleep22798399-21users19:30:192
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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