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2026-07-01 - 12:05
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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
Characteristics of the 376 highest latencies:
System rackdslot0.osadl.org (updated Wed Jul 01, 2026 00:45:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
9299992714,10cyclictest0-21swapper/122:56:201
9299992713,11cyclictest0-21swapper/122:18:491
929999253,15cyclictest0-21swapper/121:43:261
9299992422,2cyclictest0-21swapper/121:29:571
929999234,2cyclictest24296-21grep00:25:141
9299992314,0cyclictest0-21swapper/121:02:101
9300992220,1cyclictest1100-21snmpd20:12:202
929799220,21cyclictest0-21swapper/000:20:140
9299992119,2cyclictest0-21swapper/122:46:281
9299992118,2cyclictest0-21swapper/119:45:211
929999210,19cyclictest0-21swapper/123:00:191
930099204,15cyclictest28-21ksoftirqd/221:31:392
9300992017,2cyclictest9866-21if_enp1s022:00:172
930099200,19cyclictest843-21systemd-network22:36:302
9299992018,2cyclictest0-21swapper/122:28:401
9299992018,2cyclictest0-21swapper/120:47:341
9299992011,0cyclictest0-21swapper/100:01:541
9299992010,0cyclictest0-21swapper/123:47:101
930099193,15cyclictest0-21swapper/219:22:562
930099192,16cyclictest12147-21expr22:05:132
9300991917,1cyclictest28-21ksoftirqd/219:27:282
9300991915,3cyclictest23482-21sshd19:32:032
9300991914,4cyclictest870-21systemd-logind22:58:522
930099190,1cyclictest0-21swapper/223:55:112
930099190,18cyclictest0-21swapper/220:26:472
930099190,16cyclictest3989-21H222:10:212
930099190,16cyclictest3987-21H222:10:212
930099190,16cyclictest3983-21H222:10:212
930099190,16cyclictest3981-21H222:10:212
930099190,16cyclictest3976-21H222:10:212
929999193,15cyclictest0-21swapper/120:27:181
9299991918,0cyclictest0-21swapper/123:31:371
9299991917,2cyclictest0-21swapper/123:05:151
9299991917,1cyclictest6030-21date20:00:011
9299991914,4cyclictest4099-21H222:10:211
9299991910,0cyclictest0-21swapper/123:16:331
929999190,16cyclictest3987-21H222:10:211
929999190,16cyclictest3983-21H222:10:211
929999190,16cyclictest3983-21H222:10:211
929999190,16cyclictest3976-21H222:10:211
929999190,16cyclictest3976-21H222:10:211
929999190,16cyclictest3976-21H222:10:211
929999190,16cyclictest3086-21postgres21:14:571
929799193,15cyclictest9-21ksoftirqd/023:40:310
9297991919,0cyclictest0-21swapper/022:15:030
9297991916,2cyclictest3985-21H222:10:210
9297991916,2cyclictest16748-21if_enp1s000:10:120
929799190,3cyclictest0-21swapper/021:15:220
929799190,2cyclictest3976-21H222:10:210
929799190,16cyclictest3987-21H222:10:210
929799190,16cyclictest3979-21H222:10:210
929799190,15cyclictest0-21swapper/022:42:530
930099182,15cyclictest3979-21H222:10:212
930099182,15cyclictest28-21ksoftirqd/219:49:212
930099182,15cyclictest0-21swapper/220:33:522
9300991816,1cyclictest0-21swapper/220:20:162
9300991815,2cyclictest3983-21H222:10:212
9300991815,2cyclictest3979-21H222:10:212
9300991815,2cyclictest18827-21cat21:20:022
9300991814,3cyclictest3979-21H222:10:212
930099181,16cyclictest3987-21H222:10:212
930099180,2cyclictest3987-21H222:10:212
930099180,2cyclictest3987-21H222:10:212
930099180,2cyclictest14501-21snapd23:32:582
930099180,17cyclictest3991-21H222:10:212
930099180,17cyclictest3985-21H222:10:212
930099180,17cyclictest23101-21nfsd421:25:172
930099180,17cyclictest1035-21thermald21:45:222
930099180,16cyclictest3989-21H222:10:212
930099180,16cyclictest1523-21lxd19:58:502
930099180,15cyclictest0-21swapper/222:10:212
929999189,0cyclictest0-21swapper/121:18:171
929999188,10cyclictest0-21swapper/122:42:161
929999188,0cyclictest0-21swapper/100:20:251
929999182,2cyclictest12097-21cpuspeed_turbos20:10:141
929999182,15cyclictest0-21swapper/122:23:321
9299991816,2cyclictest0-21swapper/122:02:251
9299991816,0cyclictest0-21swapper/123:20:221
9299991815,2cyclictest1100-21snmpd20:44:431
9299991814,3cyclictest4099-21H222:10:211
9299991814,3cyclictest4099-21H222:10:211
9299991814,3cyclictest4099-21H222:10:211
9299991814,3cyclictest3987-21H222:10:211
9299991814,3cyclictest3981-21H222:10:211
9299991814,3cyclictest3976-21H222:10:211
929999180,3cyclictest14501-21snapd20:05:271
929999180,2cyclictest4099-21H222:10:211
929999180,2cyclictest4035-21H222:10:211
929999180,17cyclictest3985-21H222:10:211
929799182,15cyclictest9-21ksoftirqd/019:27:100
929799182,15cyclictest0-21swapper/000:38:500
9297991816,1cyclictest0-21swapper/022:30:150
9297991815,2cyclictest724-21cstates19:50:150
9297991815,2cyclictest3981-21H222:10:210
9297991815,2cyclictest31160-21missed_timers21:40:160
9297991814,3cyclictest9408-21lxd21:24:510
9297991814,3cyclictest3981-21H222:10:210
929799181,16cyclictest14545-21snapd21:28:100
929799180,2cyclictest4099-21H222:10:210
929799180,2cyclictest3979-21H222:10:210
929799180,2cyclictest3979-21H222:10:210
929799180,16cyclictest3991-21H222:10:210
929799180,16cyclictest3991-21H222:10:210
929799180,16cyclictest27433-21sed23:30:010
929799180,15cyclictest3991-21H222:10:210
929799180,15cyclictest3987-21H222:10:210
929799180,0cyclictest0-21swapper/020:25:140
9300991715,1cyclictest5114-21expr22:50:162
9300991715,1cyclictest5114-21expr22:50:152
9300991714,2cyclictest3983-21H222:10:212
9300991714,2cyclictest3864-21chrt22:45:242
9300991714,2cyclictest30293-21apache_accesses23:35:112
9300991714,2cyclictest30115-21apache_processe21:40:122
9300991714,2cyclictest28552-21/usr/sbin/munin20:40:122
9300991714,2cyclictest25410-21grep19:35:182
9300991714,2cyclictest25371-21grep00:25:182
9300991714,2cyclictest19140-21df_inode23:15:142
9300991714,2cyclictest14859-21cpuspeed_turbos20:15:132
930099171,15cyclictest26245-21expr20:35:152
930099170,2cyclictest3991-21H222:10:212
930099170,2cyclictest28596-21ntp_states21:35:172
930099170,16cyclictest7327-21latency20:00:172
930099170,16cyclictest5367-21/usr/sbin/munin20:55:142
930099170,16cyclictest4165-21df_inode21:50:152
930099170,16cyclictest3991-21H222:10:212
930099170,16cyclictest3989-21H222:10:212
930099170,16cyclictest3983-21H222:10:212
930099170,16cyclictest3979-21H222:10:212
930099170,16cyclictest3976-21H222:10:212
930099170,16cyclictest29597-21apache_volume00:35:142
930099170,16cyclictest26368-21idleruntime22:30:162
930099170,16cyclictest24101-21/usr/sbin/munin22:25:182
930099170,16cyclictest22580-21nfsd423:20:172
930099170,16cyclictest18149-21idleruntime22:15:142
930099170,16cyclictest15827-21apache_volume23:10:112
930099170,16cyclictest12127-21/usr/sbin/munin00:00:132
9299991715,1cyclictest21-21ksoftirqd/121:30:051
9299991714,2cyclictest3976-21H222:10:211
9299991714,2cyclictest29417-21sed19:45:011
9299991714,2cyclictest28144-21grep21:35:151
9299991714,2cyclictest16067-21cpuspeed_turbos00:10:091
9299991714,2cyclictest1070-21fschecks_count21:45:161
929999171,15cyclictest0-21swapper/122:06:521
929999170,3cyclictest15454-21taskset00:09:161
929999170,2cyclictest8378-21taskset21:57:051
929999170,2cyclictest5314-21expr20:55:141
929999170,2cyclictest4099-21H222:10:211
929999170,2cyclictest3989-21H222:10:211
929999170,2cyclictest25619-21apache_volume22:30:121
929999170,1cyclictest1738-21sed19:50:181
929999170,16cyclictest4035-21H222:10:211
929999170,16cyclictest3989-21H222:10:211
929999170,16cyclictest3987-21H222:10:211
929999170,16cyclictest32119-21/usr/sbin/munin23:35:231
929999170,16cyclictest1979-21cat20:50:141
929999170,16cyclictest17906-21cat20:20:151
929999170,16cyclictest17793-21ls19:20:231
929999170,16cyclictest17369-21sendmail_mailqu23:10:201
929999170,16cyclictest15159-21python319:20:001
9297991715,1cyclictest9-21ksoftirqd/022:24:120
9297991715,1cyclictest1840-21expr20:50:130
9297991714,2cyclictest863-21avahi-daemon21:45:210
9297991714,2cyclictest6337-21plymouth20:55:210
9297991714,2cyclictest3989-21H222:10:210
9297991714,2cyclictest3989-21H222:10:210
9297991714,2cyclictest3985-21H222:10:210
9297991714,2cyclictest3976-21H222:10:210
9297991713,3cyclictest3985-21H222:10:210
929799171,15cyclictest9-21ksoftirqd/021:35:030
929799171,15cyclictest6786-21cpuspeed_turbos23:50:130
929799171,15cyclictest24533-21which20:30:210
929799171,15cyclictest0-21swapper/022:05:070
929799170,2cyclictest4850-21nfsd421:50:190
929799170,2cyclictest3976-21H222:10:210
929799170,2cyclictest3707-21master19:15:190
929799170,2cyclictest29752-21/usr/sbin/munin22:35:200
929799170,1cyclictest3987-21H222:10:210
929799170,16cyclictest7252-21grep21:55:180
929799170,16cyclictest4035-21H222:10:210
929799170,16cyclictest3991-21H222:10:210
929799170,16cyclictest3991-21H222:10:210
929799170,16cyclictest3983-21H222:10:210
929799170,16cyclictest3983-21H222:10:210
929799170,16cyclictest18165-21tune2fs20:20:160
929799170,16cyclictest12728-21df00:00:130
929799170,16cyclictest0-21swapper/023:10:060
929799170,16cyclictest0-21swapper/022:26:360
929799170,16cyclictest0-21swapper/019:55:110
929799170,16cyclictest0-21swapper/019:30:170
9300991614,1cyclictest12930-21apache_volume23:05:122
9300991614,1cyclictest0-21swapper/221:15:132
930099160,2cyclictest6387-21cat21:55:152
9297991614,1cyclictest0-21swapper/020:45:140
9297991614,1cyclictest0-21swapper/020:15:170
9297991614,1cyclictest0-21swapper/020:05:160
9297991613,2cyclictest9814-21idleruntime22:00:160
929799160,1cyclictest4035-21H222:10:210
929799160,15cyclictest8099-21df_inode21:00:140
929799160,15cyclictest26865-21apache_processe00:30:120
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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