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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 376 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
187549963,2cyclictest30727-21snmpd10:07:592
187549963,2cyclictest30727-21snmpd09:16:142
187549963,2cyclictest30727-21snmpd08:15:072
187549963,2cyclictest2770-21ssh11:20:512
187549963,2cyclictest25501-21gzip07:20:192
187549963,2cyclictest23806-21sshd12:31:452
187549963,2cyclictest17841-21ssh10:32:192
187549963,2cyclictest16688-21cat11:10:152
187549963,2cyclictest16675-21rm12:27:402
187549963,2cyclictest13930-21taskset09:31:452
187549963,2cyclictest1-21systemd11:00:202
187549962,3cyclictest6620-21tr07:50:182
187549962,3cyclictest30880-21head10:40:152
187549962,3cyclictest30727-21snmpd12:15:392
187549962,3cyclictest30727-21snmpd12:06:082
187549962,3cyclictest30727-21snmpd11:41:052
187549962,3cyclictest30727-21snmpd11:30:102
187549962,3cyclictest30727-21snmpd11:30:102
187549962,3cyclictest30727-21snmpd11:28:132
187549962,3cyclictest30727-21snmpd11:18:402
187549962,3cyclictest30727-21snmpd11:09:072
187549962,3cyclictest30727-21snmpd10:50:122
187549962,3cyclictest30727-21snmpd10:45:482
187549962,3cyclictest30727-21snmpd10:36:272
187549962,3cyclictest30727-21snmpd10:15:202
187549962,3cyclictest30727-21snmpd09:45:072
187549962,3cyclictest30727-21snmpd09:09:412
187549962,3cyclictest30727-21snmpd08:32:402
187549962,3cyclictest30727-21snmpd07:41:272
187549962,3cyclictest30727-21snmpd07:15:412
187549962,3cyclictest29283-21cat12:35:152
187549962,3cyclictest26518-21cat11:35:182
187549962,2cyclictest275-21systemd-journal08:41:492
187549962,1cyclictest0-21swapper/209:35:452
187549962,1cyclictest0-21swapper/209:25:022
187549960,6cyclictest0-21swapper/210:20:022
187549960,5cyclictest25564-21/usr/sbin/munin09:20:122
187549960,3cyclictest23028-21munin-run08:30:002
187549960,0cyclictest0-21swapper/211:50:152
187519966,0cyclictest0-21swapper/111:21:321
187519964,2cyclictest11660-21ssh11:07:071
187519963,2cyclictest5889-21sed10:05:211
187519963,2cyclictest504-21dbus-daemon08:51:001
187519963,2cyclictest4036-21sh11:41:021
187519963,2cyclictest3272-21ssh10:43:101
187519963,2cyclictest32265-21sendmail11:20:011
187519963,2cyclictest3181-21ssh09:25:191
187519963,2cyclictest30727-21snmpd12:34:001
187519963,2cyclictest30727-21snmpd08:26:551
187519963,2cyclictest275-21systemd-journal08:37:141
187519963,2cyclictest23942-21ssh10:16:151
187519963,2cyclictest23253-21ssh11:52:581
187519963,2cyclictest20574-21chrt07:11:001
187519963,2cyclictest16881-21rm12:08:311
187519963,2cyclictest14416-21ssh09:51:051
187519963,2cyclictest10575-21rm11:25:261
187519963,1cyclictest0-21swapper/110:49:101
187519963,1cyclictest0-21swapper/109:46:071
187519962,4cyclictest26357-21awk07:25:011
187519962,3cyclictest32019-21ntpq07:35:181
187519962,3cyclictest30727-21snmpd10:20:561
187519962,3cyclictest30727-21snmpd08:58:051
187519962,3cyclictest30727-21snmpd08:30:011
187519962,3cyclictest30727-21snmpd07:55:211
187519962,3cyclictest30727-21snmpd07:33:361
187519962,3cyclictest29280-21cat12:35:151
187519962,3cyclictest275-21systemd-journal08:03:081
187519962,3cyclictest27186-21forks11:55:151
187519962,3cyclictest24821-21cat10:55:221
187519962,2cyclictest29706-21munin-run08:45:001
187519962,2cyclictest23263-21sshd11:33:451
187519962,2cyclictest23263-21sshd11:33:451
187519960,6cyclictest0-21swapper/110:12:221
187519960,6cyclictest0-21swapper/109:36:451
187519960,6cyclictest0-21swapper/109:00:111
187519960,5cyclictest3252-21head12:00:161
187519960,0cyclictest0-21swapper/109:18:571
187469965,1cyclictest12-21ksoftirqd/011:00:010
187469965,1cyclictest12-21ksoftirqd/009:15:000
187469964,2cyclictest12-21ksoftirqd/011:55:010
187469963,2cyclictest674-21lldpd09:05:110
187469963,2cyclictest30727-21snmpd08:29:530
187469963,2cyclictest30727-21snmpd07:20:080
187469963,2cyclictest275-21systemd-journal08:33:120
187469963,2cyclictest25347-21sh12:32:570
187469963,2cyclictest22405-21sh11:13:540
187469963,2cyclictest15734-21memory10:50:150
187469963,2cyclictest15019-21ssh10:10:500
187469963,2cyclictest12317-21sh12:25:130
187469963,2cyclictest11400-21ssh11:06:550
187469963,2cyclictest10569-21grep11:45:150
187469963,2cyclictest0-21swapper/010:03:250
187469962,3cyclictest9205-21cut11:25:150
187469962,3cyclictest504-21dbus-daemon12:40:000
187469962,3cyclictest4930-21ls09:45:230
187469962,3cyclictest3714-21cat12:00:190
187469962,3cyclictest30727-21snmpd11:23:220
187469962,3cyclictest30727-21snmpd10:46:060
187469962,3cyclictest30727-21snmpd10:28:150
187469962,3cyclictest30727-21snmpd10:15:080
187469962,3cyclictest30727-21snmpd10:05:560
187469962,3cyclictest30727-21snmpd09:41:420
187469962,3cyclictest30727-21snmpd08:15:280
187469962,3cyclictest30727-21snmpd07:53:090
187469962,3cyclictest28812-21sh10:39:180
187469962,3cyclictest275-21systemd-journal09:55:010
187469962,3cyclictest275-21systemd-journal08:25:000
187469962,3cyclictest26231-21expr08:35:150
187469962,3cyclictest12488-21cat12:05:190
187469961,3cyclictest14113-21turbostat08:10:000
187469960,6cyclictest0-21swapper/007:46:370
187469960,5cyclictest6097-11brltty09:04:250
187469960,2cyclictest18937-21/usr/sbin/munin07:10:180
187589953,1cyclictest5473-21apt-get07:50:113
187589953,1cyclictest31093-21grep07:35:133
187589953,1cyclictest14964-21hddtemp_smartct08:10:143
187589952,2cyclictest9922-21find08:00:123
187589952,2cyclictest7655-21taskset07:55:033
187589952,2cyclictest4980-21ssh10:25:023
187589952,2cyclictest4642-21cut09:00:133
187589952,2cyclictest30727-21snmpd09:25:033
187589952,2cyclictest30727-21snmpd07:30:093
187589952,2cyclictest30628-21cat08:45:153
187589952,2cyclictest28059-21taskset09:20:523
187589952,2cyclictest18572-21ssh09:35:073
187589952,2cyclictest18371-21cat11:50:113
187589952,2cyclictest11701-21ssh12:25:033
187589951,3cyclictest21517-21fschecks_time08:25:153
187589950,3cyclictest275-21systemd-journal07:14:123
187589950,1cyclictest21992-21grep07:15:123
187549952,2cyclictest30727-21snmpd09:55:142
187549952,2cyclictest29080-21expr07:30:122
187549952,2cyclictest15040-21cat08:10:142
187549952,2cyclictest12236-21head09:50:132
187549952,2cyclictest0-21swapper/208:05:002
187549951,3cyclictest4897-21cat09:00:142
187549951,3cyclictest22983-21ssh10:55:012
187549950,3cyclictest3223-21systemd-udevd07:45:112
187519953,1cyclictest1396-21df07:40:141
187519952,2cyclictest4230-21open_inodes07:45:181
187519952,2cyclictest30727-21snmpd09:05:201
187519952,2cyclictest30727-21snmpd08:45:021
187519952,2cyclictest30727-21snmpd08:05:101
187519952,2cyclictest27448-21sh12:15:021
187519952,2cyclictest21751-21cpuspeed07:15:021
187519952,2cyclictest20558-21chrt08:22:231
187519952,2cyclictest19886-21tune2fs12:10:141
187519952,2cyclictest16626-21ssh11:10:151
187519952,2cyclictest14038-21perl10:30:141
187519952,1cyclictest0-21swapper/110:35:041
187519951,3cyclictest4333-21cat12:20:151
187519951,3cyclictest30727-21snmpd10:00:171
187519951,3cyclictest15220-21cat08:10:151
187519951,3cyclictest10149-21diskstats11:45:111
187519951,3cyclictest0-21swapper/110:25:041
187519950,3cyclictest275-21systemd-journal08:15:081
187469953,1cyclictest25489-21sh09:20:070
187469953,1cyclictest0-21swapper/010:30:140
187469952,2cyclictest32513-21grep07:35:210
187469952,2cyclictest30025-21ssh10:40:030
187469952,2cyclictest29801-21/usr/sbin/munin07:30:170
187469952,2cyclictest27450-21cron08:40:000
187469952,2cyclictest26844-21expr07:25:120
187469952,2cyclictest21424-21sort07:15:010
187469952,2cyclictest19405-21basename09:35:150
187469952,2cyclictest1436-21chrt08:51:480
187469952,2cyclictest10974-21head08:00:180
187469951,3cyclictest31563-21ssh11:00:120
187469951,3cyclictest17313-21expr11:30:120
187469951,3cyclictest17313-21expr11:30:120
187469951,3cyclictest0-21swapper/010:20:080
187469951,1cyclictest141rcu_preempt07:40:120
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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