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2026-08-27 - 18:13
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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 highest latencies:
System rackdslot0.osadl.org (updated Thu Aug 27, 2026 12:45:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
21192992413,10cyclictest1587-21grep12:15:132
2119199220,3cyclictest427-21perf12:15:001
2119299213,2cyclictest17734-21ntp_kernel_pll_09:50:192
2119199213,2cyclictest14118-21cat08:50:011
21192992018,1cyclictest0-21swapper/210:23:232
21192992017,3cyclictest0-21swapper/209:03:002
2119299200,17cyclictest3985-21H222:10:212
2119299200,17cyclictest3985-21H222:10:212
2119199203,11cyclictest0-21swapper/108:05:471
21191992017,2cyclictest3976-21H222:10:211
2119199200,18cyclictest399-20systemd-journal10:20:001
21190992018,1cyclictest0-21swapper/008:02:330
21190992011,5cyclictest0-21swapper/011:55:140
2119099200,4cyclictest0-21swapper/010:45:180
21192991915,3cyclictest4099-21H222:10:212
2119299190,2cyclictest3983-21H222:10:212
2119299190,18cyclictest3985-21H222:10:212
2119299190,18cyclictest3985-21H222:10:212
2119299190,16cyclictest3976-21H222:10:212
2119199194,9cyclictest29720-21perf12:10:001
2119199192,2cyclictest7678-21apt-config08:37:361
21191991916,2cyclictest3985-21H222:10:211
21191991916,2cyclictest25605-21missed_timers12:00:171
21191991914,4cyclictest10338-21grep10:35:191
2119199190,3cyclictest6627-21tr10:30:131
2119199190,3cyclictest0-21swapper/112:20:561
2119199190,18cyclictest0-21swapper/107:14:211
2119199190,16cyclictest3985-21H222:10:211
2119099193,15cyclictest0-21swapper/010:10:130
21190991917,1cyclictest9-21ksoftirqd/010:40:240
21190991917,1cyclictest0-21swapper/011:00:200
21190991916,2cyclictest6987-21processes08:35:200
21190991915,3cyclictest21952-21cpuspeed_turbos10:00:130
21190991915,3cyclictest21952-21cpuspeed_turbos10:00:130
21190991914,2cyclictest3983-21H222:10:210
2119099190,17cyclictest16843-21cron08:55:010
2119299182,1cyclictest0-21swapper/208:05:012
21192991816,1cyclictest6393-21if_lxdbr008:35:162
21192991815,2cyclictest3991-21H222:10:212
21192991815,2cyclictest3987-21H222:10:212
21192991815,2cyclictest1274-21runrttasks10:11:462
21192991814,3cyclictest3987-21H222:10:212
21192991814,3cyclictest3979-21H222:10:212
21192991814,3cyclictest3976-21H222:10:212
21192991814,3cyclictest28534-21grep12:05:172
21192991814,3cyclictest11062-21ntpq07:45:182
21192991813,2cyclictest4099-21H222:10:212
2119299181,1cyclictest0-21swapper/210:32:112
2119299180,2cyclictest3979-21H222:10:212
2119299180,2cyclictest13277-21fschecks_time12:35:132
2119299180,17cyclictest3991-21H222:10:212
2119299180,17cyclictest29909-21nfsd411:10:172
2119299180,17cyclictest22556-21perf11:00:002
2119299180,17cyclictest12369-21idleruntime08:45:162
2119299180,17cyclictest0-21swapper/212:25:202
2119199186,11cyclictest0-21swapper/107:50:451
21191991816,1cyclictest21-21ksoftirqd/110:47:261
21191991816,1cyclictest0-21swapper/108:28:351
21191991814,3cyclictest0-21swapper/111:13:121
2119199181,2cyclictest16409-21chrt08:51:481
2119199180,2cyclictest4035-21H222:10:211
2119199180,1cyclictest3987-21H222:10:211
2119199180,17cyclictest9408-21lxd11:36:441
2119199180,17cyclictest4099-21H222:10:211
2119199180,17cyclictest31600-21apache208:25:011
2119199180,17cyclictest24731-21expr10:05:131
2119199180,16cyclictest3983-21H222:10:211
2119199180,16cyclictest3976-21H222:10:211
2119199180,15cyclictest4035-21H222:10:211
2119099182,1cyclictest154572chrt09:49:060
2119099182,15cyclictest0-21swapper/010:55:250
21190991816,1cyclictest25265-21idleruntime12:00:140
21190991815,2cyclictest30578-21expr10:15:140
21190991814,3cyclictest3985-21H222:10:210
21190991814,3cyclictest3979-21H222:10:210
21190991814,3cyclictest0-21swapper/009:52:460
21190991813,4cyclictest0-21swapper/008:25:480
2119099181,1cyclictest0-21swapper/011:10:490
2119099180,2cyclictest3991-21H222:10:210
2119099180,2cyclictest3989-21H222:10:210
2119099180,17cyclictest3979-21H222:10:210
2119099180,17cyclictest3976-21H222:10:210
2119099180,16cyclictest3983-21H222:10:210
2119099180,16cyclictest3983-21H222:10:210
21192991715,1cyclictest24228-21sh08:10:132
21192991715,1cyclictest0-21swapper/211:55:022
21192991715,1cyclictest0-21swapper/211:40:212
21192991715,1cyclictest0-21swapper/209:30:152
21192991714,2cyclictest3987-21H222:10:212
21192991714,2cyclictest3985-21H222:10:212
21192991714,2cyclictest3983-21H222:10:212
21192991714,2cyclictest3976-21H222:10:212
21192991714,2cyclictest3874-21cstates10:25:142
21192991714,2cyclictest3794-21timerandwakeup11:20:222
21192991714,2cyclictest31583-21nvmesmart_nvme010:15:192
21192991714,2cyclictest22101-21grep08:05:192
21192991714,2cyclictest11203-21hddtemp_smartct09:40:152
2119299170,2cyclictest880-21rs:main2
2119299170,2cyclictest3979-21H222:10:212
2119299170,2cyclictest26868-21fschecks_count08:15:162
2119299170,2cyclictest16037-21if_lxdbr007:55:172
2119299170,1cyclictest28-21ksoftirqd/211:17:132
2119299170,1cyclictest0-21swapper/209:56:402
2119299170,16cyclictest7867-21gpgv11:30:012
2119299170,16cyclictest4470-21grep09:30:002
2119299170,16cyclictest3983-21H222:10:212
2119299170,16cyclictest3979-21H222:10:212
2119299170,16cyclictest3979-21H222:10:212
2119299170,16cyclictest3976-21H222:10:212
2119299170,16cyclictest3976-21H222:10:212
2119299170,16cyclictest32663-21grep08:25:152
2119299170,16cyclictest29527-21gpgv07:25:012
2119299170,16cyclictest28573-21apache_volume09:15:122
2119299170,16cyclictest1856-21systemd-udevd08:30:522
2119299170,16cyclictest13440-21nvmesmart_nvme010:40:162
2119299170,16cyclictest12547-21anvil09:45:082
2119299170,15cyclictest3991-21H222:10:212
21191991715,1cyclictest21-21ksoftirqd/107:32:351
21191991715,1cyclictest0-21swapper/111:05:051
21191991714,2cyclictest3989-21H222:10:211
21191991714,2cyclictest3985-21H222:10:211
21191991714,2cyclictest3983-21H222:10:211
21191991714,2cyclictest3983-21H222:10:211
21191991714,2cyclictest28753-21timerandwakeup07:20:221
21191991714,2cyclictest28681-21munin-run08:20:011
21191991714,2cyclictest11250-21apt-key08:45:011
21191991713,2cyclictest0-21swapper/107:25:221
2119199171,15cyclictest993-21dbus-daemon09:00:191
2119199170,2cyclictest8969-21awk09:35:181
2119199170,2cyclictest8969-21awk09:35:181
2119199170,2cyclictest3989-21H222:10:211
2119199170,2cyclictest3983-21H222:10:211
2119199170,2cyclictest3981-21H222:10:211
2119199170,2cyclictest26625-21idleruntime09:10:171
2119199170,2cyclictest25190-21switchtime08:10:191
2119199170,2cyclictest22942-21/usr/sbin/munin09:05:211
2119199170,2cyclictest20221-21apache_accesses10:55:111
2119199170,2cyclictest13353-21nfsd410:40:151
2119199170,1cyclictest4643-21latency07:35:171
2119199170,16cyclictest5450-21timerandwakeup10:25:211
2119199170,16cyclictest4099-21H222:10:211
2119199170,16cyclictest4035-21H222:10:211
2119199170,16cyclictest3991-21H222:10:211
2119199170,16cyclictest3987-21H222:10:211
2119199170,16cyclictest3979-21H222:10:211
2119199170,16cyclictest22425-21df_inode10:00:141
2119199170,16cyclictest22425-21df_inode10:00:141
2119199170,16cyclictest2007-21systemd-journal07:19:151
2119199170,16cyclictest19460-21expr11:50:141
2119199170,16cyclictest16421-21nfsd407:55:191
2119199170,16cyclictest14382-21grep09:45:191
2119099172,1cyclictest0-21swapper/008:20:270
21190991715,1cyclictest0-21swapper/009:35:010
21190991715,1cyclictest0-21swapper/008:46:200
21190991714,2cyclictest988-21irqbalance07:40:410
21190991714,2cyclictest5180-21pzem_energy07:35:200
21190991714,2cyclictest5158-21hddtemp_smartct12:20:150
21190991714,2cyclictest4830-21cut10:25:170
21190991714,2cyclictest3981-21H222:10:210
21190991714,2cyclictest30511-21vmstat09:15:230
21190991714,2cyclictest26895-21fschecks_count08:15:160
21190991714,2cyclictest22942-21/usr/sbin/munin09:05:210
21190991714,2cyclictest17854-21cat10:50:130
21190991714,2cyclictest14750-21perf07:55:010
21190991714,2cyclictest10472-21/usr/sbin/munin09:40:150
2119099171,15cyclictest105322chrt08:41:380
2119099170,2cyclictest3976-21H222:10:210
2119099170,2cyclictest3976-21H222:10:210
2119099170,2cyclictest24378-21cpuspeed_turbos07:15:140
2119099170,2cyclictest1111-21/usr/sbin/munin07:30:140
2119099170,1cyclictest0-21swapper/009:25:130
2119099170,16cyclictest9422-21apt-key07:45:010
2119099170,16cyclictest7191-21python311:30:020
2119099170,16cyclictest6399-21apache_accesses10:30:110
2119099170,16cyclictest3989-21H222:10:210
2119099170,16cyclictest3981-21H222:10:210
2119099170,16cyclictest3976-21H222:10:210
2119099170,16cyclictest3707-21master09:12:210
2119099170,16cyclictest32298-21trivial-rewrite07:27:440
2119099170,16cyclictest3071-21nfsd411:20:180
2119099170,16cyclictest29168-21users12:05:210
2119099170,16cyclictest26910-21nfsd411:05:170
2119099170,16cyclictest25217-21tune2fs10:05:150
2119099170,16cyclictest24499-21sed08:10:140
2119099170,16cyclictest23123-21perf08:10:010
2119099170,16cyclictest2026-21ntp_states10:20:190
2119099170,16cyclictest19815-21perf09:00:010
2119099170,16cyclictest19091-21apache_accesses09:55:110
2119099170,16cyclictest17693-21latency_hist08:00:010
2119099170,16cyclictest0-21swapper/011:15:200
21192991614,1cyclictest0-21swapper/208:20:152
2119299160,1cyclictest0-21swapper/209:05:142
2119299160,15cyclictest13082-21tune2fs07:50:152
2119299160,15cyclictest0-21swapper/207:30:112
21191991613,2cyclictest3989-21H222:10:211
2119199160,15cyclictest0-21swapper/110:50:141
2119199160,15cyclictest0-21swapper/109:55:211
21190991614,1cyclictest0-21swapper/007:20:140
21190991614,1cyclictest0-21swapper/007:10:570
2119099160,15cyclictest0-21swapper/011:50:120
21191991513,1cyclictest8866-21apt-get07:45:021
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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