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2026-04-29 - 06:45
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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 Wed Apr 29, 2026 00:43:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
41332652660,64sleep04119851-21kworker/u16:1+efi_rts_wq20:00:130
4064886992825,1cyclictest0-21swapper/322:55:013
4064886992623,1cyclictest0-21swapper/323:24:593
4064886992522,1cyclictest0-21swapper/322:40:013
4064886992522,1cyclictest0-21swapper/320:20:003
4064886992420,1cyclictest0-21swapper/320:05:343
4064886992320,1cyclictest0-21swapper/323:04:593
406488699222,15cyclictest185005-21taskset22:49:223
4064886992219,1cyclictest0-21swapper/323:40:003
4064886992219,1cyclictest0-21swapper/321:10:273
4064886992219,1cyclictest0-21swapper/319:59:393
410016022112,2sleep1737-21NetworkManager19:31:441
4064886992119,1cyclictest0-21swapper/322:40:183
4064886992118,1cyclictest0-21swapper/323:55:263
4064886992118,1cyclictest0-21swapper/319:40:003
406488699202,14cyclictest106511-21taskset21:57:253
4064886992017,1cyclictest0-21swapper/322:55:233
4064886992017,1cyclictest0-21swapper/321:00:263
4064886992016,1cyclictest0-21swapper/322:10:203
406488699201,15cyclictest254642-21taskset23:33:283
406488699201,14cyclictest245885-21taskset23:25:343
406488699199,7cyclictest3163392sleep300:11:293
406488699197,9cyclictest4178264-21turbostat20:35:003
4064886991916,1cyclictest0-21swapper/322:25:003
4064886991916,1cyclictest0-21swapper/322:00:253
4064886991916,1cyclictest0-21swapper/320:40:023
406488699191,14cyclictest54795-21taskset21:25:183
406488699191,14cyclictest308028-21taskset00:05:273
406488699191,14cyclictest153212-21taskset22:27:203
406488699191,13cyclictest224115-21turbostat23:14:593
406488699189,6cyclictest40710292sleep319:11:583
406488699188,7cyclictest2712602sleep323:45:153
406488699188,7cyclictest1216692sleep322:06:083
406488699182,12cyclictest4120191-21chrt19:50:133
4064886991816,1cyclictest0-21swapper/320:10:273
4064886991816,1cyclictest0-21swapper/320:10:263
4064886991815,1cyclictest0-21swapper/321:40:033
4064886991815,1cyclictest0-21swapper/320:55:213
4064886991815,1cyclictest0-21swapper/300:39:563
406488699181,14cyclictest331002-21taskset00:20:223
406488699181,13cyclictest4100432-21taskset19:33:303
406488699181,13cyclictest4086641-21taskset19:25:073
406488699181,13cyclictest339302-21taskset00:25:283
406488699181,13cyclictest269552-21taskset23:41:303
999332171,2sleep20-21swapper/221:55:132
995652171,13sleep199615-21sh21:55:011
406488699172,12cyclictest155383-21taskset22:30:173
4064886991715,1cyclictest0-21swapper/322:20:003
4064886991715,1cyclictest0-21swapper/320:35:163
4064886991714,1cyclictest0-21swapper/323:50:153
4064886991714,1cyclictest0-21swapper/321:50:183
4064886991714,1cyclictest0-21swapper/320:20:193
406488699171,13cyclictest9920-21taskset20:50:383
406488699171,13cyclictest75290-21taskset21:37:013
406488699171,13cyclictest66444-21taskset21:30:233
406488699171,13cyclictest51628-21taskset21:20:573
406488699171,13cyclictest43498-21taskset21:15:293
406488699171,13cyclictest4139347-21taskset20:04:403
406488699171,13cyclictest4113188-21taskset19:41:393
406488699171,13cyclictest301578-21taskset00:04:043
406488699171,12cyclictest4165626-21chrt20:25:133
406488699171,12cyclictest4119555-21taskset19:45:443
406488699171,12cyclictest323780-21taskset00:15:333
406488699171,12cyclictest224386-21taskset23:15:073
406488699170,13cyclictest208839-21taskset23:05:023
4064886991613,1cyclictest0-21swapper/320:45:163
406488699161,12cyclictest90516-21taskset21:46:033
406488699161,12cyclictest4086044-21taskset19:20:433
406488699161,12cyclictest4079540-21taskset19:15:293
406488699161,12cyclictest346222-21taskset00:30:203
406488699161,12cyclictest23422-21taskset21:05:023
41459092151,11sleep14146087-21latency_hist20:10:001
3489342151,11sleep1348899-21/usr/sbin/munin00:35:131
3463842151,10sleep0346429-21ssh00:30:220
887992141,2sleep20-21swapper/221:45:192
1597902140,5sleep1159836-21ssh22:30:241
1545752141,9sleep0154659-21/usr/sbin/munin22:30:150
1544602141,2sleep2171rcu_preempt22:30:132
129998140,9rtkit-daemon139043-21diskstats22:20:140
129998140,7rtkit-daemon703-21mta-sts-daemon00:22:061
40826512120,5sleep24084468-21kthreadcore19:20:182
4064886991210,1cyclictest0-21swapper/319:10:013
2944872121,7sleep1294495-21ssh00:00:131
2389522121,1sleep20-21swapper/223:23:062
1838462121,8sleep1183850-21ssh22:45:511
1780272120,4sleep0178145-21fw_packets22:45:140
129998120,8rtkit-daemon4158110-21cat20:15:242
129998120,4rtkit-daemon703-21mta-sts-daemon21:04:192
129998120,4rtkit-daemon60112-21ssh21:27:592
129998120,3rtkit-daemon703-21mta-sts-daemon19:11:590
633612111,8sleep265048-21kthreadcore21:30:202
41072932110,7sleep14107412-21cut19:40:141
41008212112,5sleep24100854-21apt-get19:35:132
368382110,8sleep036844-21ssh21:13:140
3544682111,7sleep2354589-21timerandwakeup00:35:272
3485812111,7sleep10-21swapper/100:35:011
3202782113,6sleep1322003-21cut00:15:211
2686812111,6sleep2268724-21ntp_states23:40:262
2632462110,8sleep1263252-21ssh23:40:081
2296622110,8sleep0229718-21ntpq23:15:210
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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