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2026-01-05 - 02:25
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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 Sun Jan 04, 2026 12:45:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1331899230,18cyclictest0-21swapper/207:50:442
13318992117,3cyclictest31131-21smtpd09:35:152
1331399212,14cyclictest18122-21python312:05:011
13313992114,4cyclictest0-21swapper/108:10:141
1331399203,3cyclictest0-21swapper/109:32:311
1331399200,19cyclictest29545-21perf12:25:001
1331399200,17cyclictest0-21swapper/107:16:481
1331899192,2cyclictest20968-21idleruntime11:10:162
1331899192,16cyclictest1415-21smtpd10:35:262
13318991917,1cyclictest0-21swapper/211:49:352
13318991917,1cyclictest0-21swapper/207:34:192
1331899191,17cyclictest14769-21cpuspeed_turbos11:00:152
1331899190,16cyclictest3983-21H222:10:212
1331899190,16cyclictest3983-21H222:10:212
1331399192,1cyclictest0-21swapper/111:51:561
1331399192,1cyclictest0-21swapper/107:10:551
13313991916,2cyclictest3989-21H222:10:211
13313991915,3cyclictest2015-21tr09:40:141
1331399190,18cyclictest0-21swapper/109:03:081
13309991917,1cyclictest0-21swapper/011:15:010
1330999190,18cyclictest0-21swapper/007:35:190
1330999190,16cyclictest3983-21H222:10:210
1331899182,15cyclictest3981-21H222:10:212
1331899182,15cyclictest290882sleep209:30:202
13318991816,1cyclictest0-21swapper/208:36:012
13318991816,1cyclictest0-21swapper/207:20:142
13318991815,2cyclictest16292-21cron07:15:012
1331899180,2cyclictest3989-21H222:10:212
1331899180,2cyclictest3976-21H222:10:212
1331899180,17cyclictest12596-21perf10:00:002
1331899180,17cyclictest0-21swapper/209:05:182
13313991817,1cyclictest3989-21H222:10:211
13313991816,1cyclictest21-21ksoftirqd/108:45:341
13313991815,1cyclictest0-21swapper/107:27:531
13313991814,3cyclictest9848-21munin-run11:50:001
13313991814,3cyclictest3987-21H222:10:211
1331399181,2cyclictest11157-21nfsd408:00:181
1331399180,3cyclictest13610-21df10:00:151
1331399180,2cyclictest3983-21H222:10:211
1331399180,2cyclictest3979-21H222:10:211
1330999182,15cyclictest7097-21cut07:55:010
1330999182,15cyclictest13257-21ntp_kernel_err09:00:200
13309991816,1cyclictest9-21ksoftirqd/010:32:020
13309991816,1cyclictest0-21swapper/011:35:200
1330999181,16cyclictest21074-21latency_hist08:20:010
1330999180,2cyclictest3989-21H222:10:210
1330999180,2cyclictest3989-21H222:10:210
1330999180,2cyclictest3976-21H222:10:210
1330999180,17cyclictest4035-21H222:10:210
1330999180,15cyclictest3983-21H222:10:210
1331899172,1cyclictest0-21swapper/212:10:132
1331899172,1cyclictest0-21swapper/212:00:192
13318991715,1cyclictest41122chrt09:41:092
13318991715,1cyclictest24208-21cpuspeed_turbos10:20:152
13318991715,1cyclictest17967-21expr09:10:142
13318991715,1cyclictest0-21swapper/211:30:122
13318991715,1cyclictest0-21swapper/211:05:142
13318991715,1cyclictest0-21swapper/207:40:152
13318991714,2cyclictest6972-21awk10:45:152
13318991714,2cyclictest4099-21H222:10:212
13318991714,2cyclictest3989-21H222:10:212
13318991714,2cyclictest3987-21H222:10:212
13318991714,2cyclictest27121-21expr08:30:122
13318991714,2cyclictest2336-21latency07:45:182
13318991714,2cyclictest23136-21tr09:20:132
13318991714,2cyclictest21978-21fschecks_count10:15:162
1331899170,2cyclictest7346-21tr07:55:132
1331899170,2cyclictest7346-21tr07:55:122
1331899170,2cyclictest4415-21which08:45:162
1331899170,2cyclictest3989-21H222:10:212
1331899170,2cyclictest3976-21H222:10:212
1331899170,2cyclictest3976-21H222:10:212
1331899170,2cyclictest28004-21lxd11:58:412
1331899170,2cyclictest28004-21lxd11:18:412
1331899170,2cyclictest21156-21gpg-connect-age08:20:012
1331899170,1cyclictest0-21swapper/211:40:132
1331899170,1cyclictest0-21swapper/208:05:542
1331899170,16cyclictest9688-21fschecks_count10:50:152
1331899170,16cyclictest9470-21expr08:55:132
1331899170,16cyclictest570-21cpuspeed_turbos08:40:122
1331899170,16cyclictest3983-21H222:10:212
1331899170,16cyclictest3979-21H222:10:212
1331899170,16cyclictest3707-21master11:24:552
1331899170,16cyclictest3339-21cnf-update-db10:40:012
1331899170,16cyclictest29083-21grep11:25:142
1331899170,16cyclictest25816-21ls08:25:222
1331899170,16cyclictest21285-21apt-get08:20:012
1331899170,16cyclictest21285-21apt-get08:20:012
1331899170,16cyclictest1551-21snapd08:52:302
1331899170,16cyclictest12190-21expr10:55:132
1331899170,16cyclictest11779-21pzem_current11:50:202
1331899170,16cyclictest1079-21cups-browsed12:15:252
13313991715,1cyclictest3991-21H222:10:211
13313991715,1cyclictest0-21swapper/110:25:141
13313991714,2cyclictest3991-21H222:10:211
13313991714,2cyclictest3983-21H222:10:211
13313991714,2cyclictest3983-21H222:10:211
13313991714,2cyclictest27463-21expr08:30:131
13313991714,2cyclictest25485-21ntp_kernel_pll_10:20:211
13313991714,2cyclictest12066-21grep10:55:131
13313991714,2cyclictest10608-21ps08:55:201
13313991713,3cyclictest863-21avahi-daemon12:05:211
1331399171,1cyclictest0-21swapper/109:25:321
1331399171,15cyclictest6030-21nfsd411:40:181
1331399171,15cyclictest3987-21H222:10:211
1331399171,15cyclictest0-21swapper/112:25:131
1331399170,2cyclictest3981-21H222:10:211
1331399170,2cyclictest31841-21kernelversion07:40:191
1331399170,2cyclictest23553-21expr09:20:141
1331399170,2cyclictest16454-21proxymap10:05:151
1331399170,1cyclictest3991-21H222:10:211
1331399170,1cyclictest3981-21H222:10:211
1331399170,1cyclictest3981-21H222:10:211
1331399170,16cyclictest4272-21fschecks_count10:40:161
1331399170,16cyclictest3983-21H222:10:211
1331399170,16cyclictest2583-21python310:40:001
1331399170,16cyclictest22445-21sed10:15:181
1331399170,16cyclictest20670-21cat09:15:141
1331399170,16cyclictest19261-21fschecks_count10:10:151
1331399170,16cyclictest1844-21ls07:45:151
1331399170,16cyclictest1481-21snapd11:05:081
1331399170,16cyclictest1105-21perf11:35:001
1331399170,15cyclictest3976-21H222:10:211
13309991714,2cyclictest3989-21H222:10:210
13309991714,2cyclictest3987-21H222:10:210
13309991714,2cyclictest3053-21systemd-logind10:36:510
13309991714,2cyclictest29659-21expr11:25:180
13309991714,2cyclictest26754-21ps07:30:190
13309991714,2cyclictest26511-21date10:25:000
13309991714,2cyclictest25989-21pzem_current12:15:240
13309991714,2cyclictest25906-21grep09:25:150
13309991714,2cyclictest2529-21wget09:40:160
13309991714,2cyclictest24874-21users11:15:220
13309991714,2cyclictest17281-21fgrep12:00:220
13309991714,2cyclictest16325-21perf07:15:010
13309991714,2cyclictest16310-21expr10:05:140
13309991714,2cyclictest13082-21cut10:55:180
13309991713,3cyclictest25387-21nfsd408:25:190
13309991713,2cyclictest3981-21H222:10:210
1330999171,15cyclictest0-21swapper/011:40:220
1330999170,2cyclictest5854-21taskset10:43:590
1330999170,2cyclictest5359-21expr09:45:140
1330999170,2cyclictest4099-21H222:10:210
1330999170,2cyclictest3991-21H222:10:210
1330999170,2cyclictest3981-21H222:10:210
1330999170,2cyclictest31547-21fschecks_count07:40:160
1330999170,2cyclictest27489-21ls12:20:130
1330999170,2cyclictest2007-21systemd-journal08:23:170
1330999170,2cyclictest2007-21systemd-journal08:23:170
1330999170,1cyclictest4099-21H222:10:210
1330999170,1cyclictest0-21swapper/010:00:140
1330999170,16cyclictest3979-21H222:10:210
1330999170,16cyclictest32551-21/usr/sbin/munin09:35:200
1330999170,16cyclictest29365-21gpgv08:35:010
1330999170,16cyclictest1731-21cat07:45:160
1330999170,16cyclictest11187-21dpkg10:52:080
1330999170,16cyclictest0-21swapper/008:40:140
13318991614,1cyclictest0-21swapper/210:25:122
13318991614,1cyclictest0-21swapper/210:00:132
13318991614,1cyclictest0-21swapper/209:25:152
13318991614,1cyclictest0-21swapper/207:25:212
13318991613,2cyclictest30137-21df10:30:162
1331899160,2cyclictest30006-21awk12:25:142
1331899160,1cyclictest0-21swapper/210:05:172
1331899160,15cyclictest3989-21H222:10:212
13313991614,1cyclictest26444-21idleruntime11:20:151
13313991614,1cyclictest0-21swapper/112:15:061
13313991614,1cyclictest0-21swapper/112:10:121
13313991614,1cyclictest0-21swapper/111:00:131
13313991614,1cyclictest0-21swapper/110:50:161
13313991614,1cyclictest0-21swapper/110:45:221
13313991614,1cyclictest0-21swapper/109:55:141
13313991614,1cyclictest0-21swapper/107:50:121
1331399160,15cyclictest6772-21expr08:50:141
1331399160,15cyclictest3259-21dpkg12:35:121
1331399160,15cyclictest32096-21latency09:35:181
1331399160,15cyclictest29822-21cstates10:30:151
1331399160,15cyclictest14246-21plymouth08:05:211
1331399160,15cyclictest13696-21fschecks_time11:55:171
1331399160,15cyclictest0-21swapper/111:25:131
1331399160,15cyclictest0-21swapper/108:40:171
1331399160,15cyclictest0-21swapper/108:35:031
13309991614,1cyclictest0-21swapper/011:05:140
13309991614,1cyclictest0-21swapper/010:13:110
13309991614,1cyclictest0-21swapper/008:05:180
13309991614,1cyclictest0-21swapper/007:20:150
13309991613,2cyclictest8183-21fschecks_count09:50:160
13309991613,2cyclictest1351-21lxd11:30:410
13309991612,3cyclictest3981-21H222:10:210
1330999160,2cyclictest8368-21grep07:55:180
1330999160,2cyclictest8368-21grep07:55:180
1330999160,2cyclictest7365-21cat10:45:170
1330999160,15cyclictest3979-21H222:10:210
1330999160,15cyclictest288722chrt10:26:410
1330999160,15cyclictest0-21swapper/011:55:160
1330999160,15cyclictest0-21swapper/011:00:150
1330999160,15cyclictest0-21swapper/009:30:330
1330999160,15cyclictest0-21swapper/009:20:130
1330999160,15cyclictest0-21swapper/008:10:100
1330999160,15cyclictest0-21swapper/008:00:160
1331399150,15cyclictest0-21swapper/107:30:121
13309991513,1cyclictest0-21swapper/012:25:150
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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