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2026-03-29 - 16:44
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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 rackaslot8.osadl.org (updated Sun Mar 29, 2026 12:44:21)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
114002298269,19sleep20-21swapper/207:07:002
114812275244,20sleep00-21swapper/007:08:030
114492254224,20sleep30-21swapper/307:07:383
114042254227,18sleep10-21swapper/107:07:031
295332650,0sleep10-21swapper/110:04:261
203662620,0sleep20-21swapper/211:34:592
172142580,0sleep10-21swapper/109:37:371
145532550,0sleep00-21swapper/011:30:460
54832180,0sleep00-21swapper/010:47:330
247962180,0sleep20-21swapper/208:45:172
111112180,1sleep20-21swapper/212:26:462
176352170,0sleep10-21swapper/110:15:511
127612170,0sleep20-21swapper/212:08:562
283542150,0sleep10-21swapper/111:20:131
250802150,0sleep00-21swapper/010:20:180
302542140,0sleep30-21swapper/309:25:473
142882140,0sleep30-21swapper/311:50:153
71452130,0sleep10-21swapper/112:25:001
46892120,0sleep00-21swapper/011:44:590
117859997,1cyclictest28-21ksoftirqd/209:50:002
117859994,3cyclictest275-21systemd-journal07:28:312
117859994,1cyclictest141rcu_preempt11:10:022
27610280,0sleep30-21swapper/309:44:053
27590280,0sleep20-21swapper/211:58:192
18607280,0sleep00-21swapper/009:38:410
117879987,1cyclictest34-21ksoftirqd/307:40:013
117879984,3cyclictest658-21snmpd11:58:553
117879983,3cyclictest275-21systemd-journal08:54:253
117859988,0cyclictest281ksoftirqd/210:50:012
117859985,2cyclictest658-21snmpd08:20:312
117859985,2cyclictest28-21ksoftirqd/211:40:002
117859984,3cyclictest275-21systemd-journal10:51:362
117859980,7cyclictest26847-21ssh12:16:522
117749983,3cyclictest275-21systemd-journal09:15:350
117749980,5cyclictest32190-21sh12:40:000
23932270,0sleep00-21swapper/012:35:000
13040270,0sleep10-21swapper/109:15:321
117879976,1cyclictest9215-21ssh12:06:143
117879976,1cyclictest34-21ksoftirqd/309:55:013
117879975,2cyclictest34-21ksoftirqd/307:30:003
117879975,1cyclictest24914-21hddtemp_smartct12:35:133
117879974,2cyclictest658-21snmpd10:52:283
117879974,2cyclictest560-21gdbus09:20:013
117879974,2cyclictest34-21ksoftirqd/308:05:013
117879974,2cyclictest29935-21munin-plugin-st09:00:013
117879974,2cyclictest19962-21sshd11:34:503
117879973,3cyclictest25659-21cut10:40:173
117879973,3cyclictest18563-21ntpq10:55:183
117879973,2cyclictest275-21systemd-journal11:10:013
117879973,1cyclictest0-21swapper/310:02:013
117859977,0cyclictest281ksoftirqd/211:20:012
117859977,0cyclictest281ksoftirqd/210:20:012
117859976,1cyclictest28-21ksoftirqd/211:00:012
117859976,1cyclictest28-21ksoftirqd/210:10:012
117859976,1cyclictest281ksoftirqd/208:05:002
117859974,2cyclictest658-21snmpd12:11:222
117859974,2cyclictest11744-21cron11:29:592
117859973,3cyclictest5649-21df_inode11:45:142
117859973,3cyclictest275-21systemd-journal08:59:272
117859973,3cyclictest26565-21cat11:00:152
117859973,3cyclictest17622-21gdbus07:20:012
117859973,0cyclictest28-21ksoftirqd/210:00:122
117859972,3cyclictest32199-21idleruntime-cro12:40:002
117799973,3cyclictest658-21snmpd11:34:331
117799973,3cyclictest658-21snmpd07:48:421
117799973,3cyclictest504-21dbus-daemon12:07:351
117799973,3cyclictest275-21systemd-journal09:59:331
117799972,3cyclictest25482-21ls08:50:011
117799970,7cyclictest28222-21ssh10:22:291
117749975,1cyclictest658-21snmpd12:26:010
117749975,1cyclictest15505-21ssh12:10:150
117749973,3cyclictest658-21snmpd10:58:380
117749973,3cyclictest658-21snmpd10:39:080
117749973,3cyclictest658-21snmpd09:14:470
117749973,3cyclictest658-21snmpd08:50:190
117749973,3cyclictest658-21snmpd07:51:090
117749973,3cyclictest275-21systemd-journal07:31:260
117749973,3cyclictest275-21systemd-journal07:25:110
4893260,0sleep00-21swapper/010:08:570
31193260,0sleep30-21swapper/311:03:063
117879966,0cyclictest0-21swapper/310:30:233
117879966,0cyclictest0-21swapper/307:55:193
117879964,1cyclictest31385-21/usr/sbin/munin07:50:153
117879963,2cyclictest9467-21rm10:11:033
117879963,2cyclictest8200-21ssh09:13:093
117879963,2cyclictest663-21runrttasks10:15:323
117879963,2cyclictest658-21snmpd08:08:303
117879963,2cyclictest658-21snmpd07:20:023
117879963,2cyclictest31719-21unixbench_singl09:00:183
117879963,2cyclictest23692-21sshd07:30:363
117879963,2cyclictest20197-21cat09:20:153
117879963,2cyclictest14592-21ssh09:35:403
117879963,2cyclictest1179-21sh11:42:213
117879963,1cyclictest0-21swapper/312:28:493
117879963,1cyclictest0-21swapper/310:47:583
117879963,1cyclictest0-21swapper/310:21:133
117879963,1cyclictest0-21swapper/310:08:183
117879962,3cyclictest8813-21ntpq08:10:163
117879962,3cyclictest658-21snmpd12:34:133
117879962,3cyclictest658-21snmpd11:19:093
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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