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2026-07-27 - 08:18
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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 Mon Jul 27, 2026 00:43:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
35339921020,3sleep1321rcuc/120:45:171
227261992724,1cyclictest0-21swapper/319:20:233
227261992421,1cyclictest0-21swapper/323:40:283
227261992421,1cyclictest0-21swapper/300:00:233
227261992320,1cyclictest0-21swapper/322:55:223
227261992320,1cyclictest0-21swapper/321:40:223
227261992320,1cyclictest0-21swapper/321:00:183
227261992320,1cyclictest0-21swapper/320:05:163
227261992320,1cyclictest0-21swapper/320:00:013
227261992220,0cyclictest0-21swapper/323:20:263
227261992219,1cyclictest0-21swapper/323:09:593
227261992219,1cyclictest0-21swapper/323:00:103
227261992219,1cyclictest0-21swapper/322:20:233
227261992118,1cyclictest0-21swapper/322:40:203
227261992118,1cyclictest0-21swapper/322:15:233
58758722016,2sleep0587012-21sendmail-msp23:20:160
227261992018,1cyclictest0-21swapper/321:25:183
227261992018,1cyclictest0-21swapper/321:20:013
227261992017,1cyclictest0-21swapper/323:10:253
227261992017,1cyclictest0-21swapper/322:05:183
227261992017,1cyclictest0-21swapper/321:50:173
227261992017,1cyclictest0-21swapper/321:20:173
227261992017,1cyclictest0-21swapper/320:40:013
227261992017,1cyclictest0-21swapper/320:30:193
227261992017,1cyclictest0-21swapper/300:20:173
227261992017,1cyclictest0-21swapper/300:15:173
22726199201,15cyclictest483072-21taskset22:10:263
227261991917,1cyclictest0-21swapper/319:40:003
227261991917,0cyclictest0-21swapper/321:35:293
227261991916,1cyclictest0-21swapper/322:55:003
22726199191,14cyclictest641681-21taskset23:54:553
22726199191,14cyclictest442876-21taskset21:45:213
22726199191,14cyclictest280323-21taskset19:46:533
22726199191,14cyclictest268012-21taskset19:40:043
22726199191,13cyclictest364231-21taskset20:55:123
22726199188,7cyclictest4219142sleep321:33:263
22726199187,7cyclictest3573912sleep320:48:043
22726199182,12cyclictest351126-21taskset20:44:383
22726199182,12cyclictest312271-21taskset20:11:393
22726199182,12cyclictest312271-21taskset20:11:383
22726199182,12cyclictest293007-21taskset19:55:313
227261991816,1cyclictest0-21swapper/322:30:233
22726199181,14cyclictest501075-21taskset22:25:133
22726199181,13cyclictest710697-21taskset00:35:283
22726199181,13cyclictest695086-21taskset00:25:333
22726199181,13cyclictest672261-21taskset00:12:263
22726199181,13cyclictest648466-21taskset23:56:543
22726199181,13cyclictest616897-21chrt23:36:103
22726199181,13cyclictest603436-21taskset23:30:173
22726199181,13cyclictest603436-21taskset23:30:163
22726199181,13cyclictest461283-21taskset21:59:233
22726199181,13cyclictest358088-21taskset20:50:153
22726199181,13cyclictest254733-21taskset19:26:443
22726199181,13cyclictest232727-21taskset19:10:243
22726199181,12cyclictest516642-21taskset22:35:073
22726199177,7cyclictest2610242sleep319:30:353
227261991714,1cyclictest0-21swapper/319:50:223
22726199171,13cyclictest702998-21taskset00:30:463
22726199171,13cyclictest665082-21taskset00:09:293
22726199171,13cyclictest469279-21taskset22:04:403
22726199171,13cyclictest331539-21taskset20:25:543
22726199171,12cyclictest632499-21taskset23:45:563
22726199171,12cyclictest601213-21taskset23:26:003
22726199171,12cyclictest579383-21taskset23:15:053
22726199171,12cyclictest382984-21taskset21:06:193
22726199171,12cyclictest320187-21taskset20:20:173
5262372160,8sleep1527564-21grep22:40:201
4560852161,3sleep20-21swapper/221:55:182
22726199167,6cyclictest3180002sleep320:15:243
227261991613,1cyclictest0-21swapper/321:10:233
227261991612,1cyclictest0-21swapper/319:15:183
22726199161,12cyclictest532330-21taskset22:45:023
4045482150,11sleep1404601-21ssh21:20:251
6652832141,9sleep1665399-21date00:10:011
4775672141,4sleep1477573-21ssh22:10:141
4532632141,10sleep1453271-21ssh21:53:491
4046022140,10sleep2404646-21ld21:20:262
3966882141,9sleep1396737-21ntpq21:15:251
6582552130,9sleep0659186-21/usr/sbin/munin00:05:190
6019572131,9sleep2601963-21ssh23:28:052
5857782131,2sleep20-21swapper/223:16:422
3567802135,1sleep0171rcu_preempt20:45:250
7052242121,8sleep20-21swapper/200:35:162
6339582120,9sleep2634213-21ssh23:50:012
6327962120,9sleep1632804-21ssh23:46:431
5872392121,8sleep2587012-21sendmail-msp23:20:062
4455872121,4sleep2222-21plymouthd21:49:052
5542562110,1sleep00-21swapper/022:56:310
5244782110,8sleep0524256-21sendmail-msp22:40:020
4618302110,1sleep10-21swapper/122:00:071
3938912111,6sleep2395549-21cut21:15:222
3910852110,8sleep2391145-21munin-run21:15:012
3271192111,7sleep2328641-21kthreadcore20:25:172
3180872110,8sleep1318124-21/usr/sbin/munin20:15:261
2859772111,3sleep2286016-21ntpq19:50:212
2210392111,5sleep30-21swapper/319:05:123
7047462100,7sleep1704754-21ssh00:35:021
6393362101,6sleep1639482-21ntpq23:50:201
6179032100,3sleep1617909-21ssh23:38:531
6096972100,7sleep2609699-21ssh23:32:502
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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