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2026-08-19 - 20:15
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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 Wed Aug 19, 2026 12:44:22)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
183262287229,47sleep30-21swapper/307:06:213
183402286255,20sleep20-21swapper/207:06:322
185022284226,20sleep10-21swapper/107:08:201
166622278248,20sleep00-21swapper/007:05:090
132672650,0sleep20-21swapper/211:46:412
105452620,0sleep20-21swapper/209:10:202
200022600,0sleep00-21swapper/009:16:070
21922590,0sleep02193-21ls08:55:130
205862590,0sleep10-21swapper/110:53:231
168452590,0sleep30-21swapper/310:31:353
236622560,0sleep10-21swapper/109:56:451
276662540,0sleep10-21swapper/111:35:431
313392530,0sleep10-21swapper/109:42:041
218242530,0sleep00-21swapper/012:10:540
200822330,0sleep00-21swapper/009:55:120
145352180,0sleep10-21swapper/109:13:201
127912180,0sleep10-21swapper/109:30:531
68592160,0sleep00-21swapper/011:43:110
3902160,0sleep20-21swapper/210:02:272
36972150,0sleep10-21swapper/111:02:281
83342140,0sleep20-21swapper/212:03:232
1874699109,1cyclictest12-21ksoftirqd/009:30:000
1874699108,1cyclictest9676-21plymouth08:00:000
187549990,8cyclictest7777-21/usr/sbin/munin07:55:122
187519990,8cyclictest863-21ssh09:24:511
187469993,3cyclictest31924-21munin-run08:50:000
3181280,0sleep20-21swapper/208:55:192
29161280,0sleep00-21swapper/011:17:400
187589983,3cyclictest275-21systemd-journal11:15:463
187469985,2cyclictest12-21ksoftirqd/008:15:000
187469983,1cyclictest141rcu_preempt11:35:120
12531280,0sleep30-21swapper/309:50:143
6821270,0sleep10-21swapper/107:50:201
187589974,2cyclictest275-21systemd-journal10:54:463
187589974,2cyclictest275-21systemd-journal10:37:333
187589973,3cyclictest30727-21snmpd11:42:323
187589973,3cyclictest275-21systemd-journal09:32:443
187549974,2cyclictest275-21systemd-journal07:30:012
187549973,3cyclictest32179-21apt-get08:50:122
187549973,3cyclictest30727-21snmpd10:26:542
187549973,3cyclictest275-21systemd-journal10:10:232
187549973,3cyclictest275-21systemd-journal08:23:442
187549973,3cyclictest275-21systemd-journal07:37:322
187549972,3cyclictest14117-21ls08:10:002
187519976,1cyclictest8422-21diskmemload12:25:171
187519972,3cyclictest28584-21ls07:30:011
187469976,1cyclictest12-21ksoftirqd/011:55:010
187469974,2cyclictest504-21dbus-daemon12:24:060
187469974,2cyclictest11369-21ntpq09:30:180
187469972,3cyclictest275-21systemd-journal12:15:450
20461260,0sleep20-21swapper/207:10:212
187589966,0cyclictest0-21swapper/311:45:143
187589966,0cyclictest0-21swapper/311:33:563
187589966,0cyclictest0-21swapper/311:33:563
187589966,0cyclictest0-21swapper/310:40:033
187589966,0cyclictest0-21swapper/309:46:023
187589965,1cyclictest23107-21ssh11:14:273
187589963,2cyclictest6739-21sh10:45:163
187589963,2cyclictest504-21dbus-daemon08:20:003
187589963,2cyclictest34-21ksoftirqd/312:20:133
187589963,2cyclictest32084-21ssh10:01:513
187589963,2cyclictest31672-21ssh10:20:483
187589963,2cyclictest275-21systemd-journal08:09:453
187589963,2cyclictest2405-21ssh11:01:293
187589963,2cyclictest23627-21sh12:31:373
187589963,2cyclictest23071-21ssh09:56:183
187589963,2cyclictest19916-21ssh10:14:333
187589963,2cyclictest19222-21df_inode08:20:133
187589963,1cyclictest0-21swapper/312:00:483
187589962,3cyclictest30727-21snmpd12:15:033
187589962,3cyclictest30727-21snmpd11:57:443
187589962,3cyclictest30727-21snmpd11:26:193
187589962,3cyclictest30727-21snmpd10:58:153
187589962,3cyclictest30727-21snmpd10:16:443
187589962,3cyclictest30727-21snmpd10:05:053
187589962,3cyclictest30727-21snmpd09:41:183
187589962,3cyclictest30727-21snmpd09:11:333
187589962,3cyclictest30727-21snmpd09:08:593
187589962,3cyclictest30727-21snmpd08:37:493
187589962,3cyclictest30727-21snmpd07:45:183
187589962,3cyclictest30727-21snmpd07:29:243
187589962,3cyclictest30727-21snmpd07:22:533
187589962,3cyclictest27744-21apt-get08:40:123
187589962,3cyclictest25685-21ls11:35:133
187589962,3cyclictest2077-21users11:20:203
187589962,3cyclictest17515-21expr09:15:133
187589962,1cyclictest0-21swapper/312:35:573
187589962,1cyclictest0-21swapper/312:05:343
187589962,1cyclictest0-21swapper/311:05:223
187589961,4cyclictest1729-21turbostat08:55:003
187589961,3cyclictest275-21systemd-journal07:45:013
187589960,6cyclictest0-21swapper/312:10:373
187589960,5cyclictest23462-21tr08:30:123
187589960,2cyclictest1957-21/usr/sbin/munin08:55:203
187549966,0cyclictest0-21swapper/212:13:132
187549966,0cyclictest0-21swapper/208:35:232
187549964,2cyclictest28-21ksoftirqd/208:50:002
187549963,2cyclictest5371-21ssh12:20:222
187549963,2cyclictest31953-21ssh09:42:302
187549963,2cyclictest31208-21ssh11:57:272
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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