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2025-11-14 - 19:38
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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 Fri Nov 14, 2025 12:45:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1676999234,11cyclictest0-21swapper/208:15:482
1676299230,5cyclictest0-21swapper/108:27:301
1676299220,21cyclictest0-21swapper/109:50:131
16762992111,9cyclictest0-21swapper/108:50:001
1676999200,17cyclictest4523-21H212:26:332
16757992018,1cyclictest0-21swapper/010:09:330
1676999198,10cyclictest0-21swapper/207:55:152
1676999190,18cyclictest32660-21munin-plugin-st10:30:012
1676299193,15cyclictest21-21ksoftirqd/108:21:591
1676299192,16cyclictest970-21dbus-daemon07:30:221
1676299192,16cyclictest4581-21H212:26:331
16762991917,1cyclictest0-21swapper/111:21:581
16762991917,1cyclictest0-21swapper/107:44:431
16762991916,2cyclictest777-21cat08:35:191
1676299190,4cyclictest414-20systemd-journal11:11:051
1676299190,2cyclictest4538-21H212:26:331
1676299190,18cyclictest15849-21debian-sa111:55:001
1676299190,16cyclictest4536-21H212:26:331
1676299190,16cyclictest4526-21H212:26:331
1675799192,2cyclictest4523-21H212:26:330
1675799192,1cyclictest0-21swapper/009:07:480
1675799192,16cyclictest4526-21H212:26:330
1675799192,16cyclictest10897-21grep11:45:140
1675799190,5cyclictest0-21swapper/012:21:560
1675799190,2cyclictest4581-21H212:26:330
1675799190,2cyclictest4532-21H212:26:330
1675799190,16cyclictest4581-21H212:26:330
1675799190,16cyclictest0-21swapper/011:05:010
1676999186,11cyclictest0-21swapper/208:20:492
1676999182,1cyclictest4526-21H212:26:332
1676999182,15cyclictest4526-21H212:26:332
1676999182,15cyclictest28-21ksoftirqd/211:13:572
1676999182,15cyclictest0-21swapper/210:50:152
16769991816,1cyclictest28-21ksoftirqd/207:27:492
16769991815,2cyclictest4905-21switchtime08:40:232
16769991815,2cyclictest4530-21H212:26:332
16769991815,2cyclictest20732-21latency07:15:182
16769991814,3cyclictest4530-21H212:26:332
16769991814,3cyclictest4526-21H212:26:332
16769991814,2cyclictest4532-21H212:26:332
1676999181,2cyclictest4581-21H212:26:332
1676999180,3cyclictest4593-21H212:26:332
1676999180,3cyclictest25053-21munin-run07:25:002
1676999180,2cyclictest4534-21H212:26:332
1676999180,17cyclictest823-21systemd-network12:06:172
1676999180,17cyclictest4530-21H212:26:332
1676999180,17cyclictest0-21swapper/209:20:432
1676999180,16cyclictest4534-21H212:26:332
1676999180,16cyclictest4534-21H212:26:332
1676999180,15cyclictest4530-21H212:26:332
1676999180,15cyclictest4530-21H212:26:332
16762991816,1cyclictest0-21swapper/112:23:091
16762991816,1cyclictest0-21swapper/109:46:421
16762991816,1cyclictest0-21swapper/108:32:191
16762991815,2cyclictest4536-21H212:26:331
16762991814,3cyclictest4534-21H212:26:331
16762991814,3cyclictest30053-21snapd11:01:491
16762991814,3cyclictest0-21swapper/108:11:361
1676299181,2cyclictest28592-21nfsd412:15:181
1676299180,2cyclictest4534-21H212:26:331
1676299180,1cyclictest4530-21H212:26:331
1676299180,16cyclictest4526-21H212:26:331
1675799182,15cyclictest4536-21H212:26:330
16757991815,2cyclictest619-21ntp_kernel_pll_11:25:200
16757991815,2cyclictest28019-21tune2fs10:20:180
16757991815,2cyclictest22024-21tr10:10:140
16757991815,2cyclictest0-21swapper/007:50:170
1675799181,16cyclictest4526-21H212:26:330
1675799181,16cyclictest21835-21chrt07:16:530
1675799181,16cyclictest17933-21cat07:10:150
1675799180,3cyclictest4534-21H212:26:330
1675799180,2cyclictest4536-21H212:26:330
1675799180,2cyclictest4523-21H212:26:330
1675799180,1cyclictest4534-21H212:26:330
1675799180,17cyclictest823-21systemd-network08:59:230
1675799180,17cyclictest4534-21H212:26:330
1675799180,16cyclictest0-21swapper/012:15:310
16769991717,0cyclictest0-21swapper/211:05:152
16769991715,1cyclictest28-21ksoftirqd/209:25:072
16769991714,2cyclictest9890-21nfsd408:50:192
16769991714,2cyclictest4581-21H212:26:332
16769991714,2cyclictest4536-21H212:26:332
16769991714,2cyclictest4523-21H212:26:332
16769991714,2cyclictest4523-21H212:26:332
16769991714,2cyclictest4523-21H212:26:332
16769991714,2cyclictest2007-21ls07:40:132
16769991714,2cyclictest15326-21fschecks_time10:55:192
16769991713,2cyclictest4581-21H212:26:332
1676999170,2cyclictest4593-21H212:26:332
1676999170,2cyclictest4593-21H212:26:332
1676999170,2cyclictest4581-21H212:26:332
1676999170,2cyclictest4581-21H212:26:332
1676999170,2cyclictest4526-21H212:26:332
1676999170,16cyclictest9820-21latency_hist07:55:012
1676999170,16cyclictest8119-21grep11:40:132
1676999170,16cyclictest4969-21ntp_states10:35:212
1676999170,16cyclictest4593-21H212:26:332
1676999170,16cyclictest4581-21H212:26:332
1676999170,16cyclictest4534-21H212:26:332
1676999170,16cyclictest4532-21H212:26:332
1676999170,16cyclictest4526-21H212:26:332
1676999170,16cyclictest31086-21pzem_current08:30:212
1676999170,16cyclictest26007-21ntp_states12:10:192
1676999170,16cyclictest22207-21sendmail_mailqu09:10:212
1676999170,16cyclictest15226-21anacron08:04:262
16762991714,2cyclictest9186-21/usr/sbin/munin10:45:161
16762991714,2cyclictest4593-21H212:26:331
16762991714,2cyclictest4593-21H212:26:331
16762991714,2cyclictest4581-21H212:26:331
16762991714,2cyclictest4581-21H212:26:331
16762991714,2cyclictest4536-21H212:26:331
16762991714,2cyclictest4532-21H212:26:331
16762991714,2cyclictest414-20systemd-journal10:35:011
16762991714,2cyclictest27700-21pzem_power11:15:201
16762991714,2cyclictest20111-21grep10:05:151
16762991714,2cyclictest11842-21cat11:45:191
16762991713,3cyclictest4530-21H212:26:331
16762991712,4cyclictest4534-21H212:26:331
1676299171,15cyclictest4581-21H212:26:331
1676299171,15cyclictest0-21swapper/112:10:181
1676299171,15cyclictest0-21swapper/107:55:001
1676299170,2cyclictest4538-21H212:26:331
1676299170,2cyclictest4538-21H212:26:331
1676299170,2cyclictest4534-21H212:26:331
1676299170,2cyclictest4534-21H212:26:331
1676299170,2cyclictest4523-21H212:26:331
1676299170,2cyclictest31601-21/usr/sbin/munin09:30:151
1676299170,2cyclictest16498-21if_eno108:05:171
1676299170,2cyclictest16412-21ntpq09:00:191
1676299170,1cyclictest4534-21H212:26:331
1676299170,16cyclictest5116-21/usr/sbin/munin11:35:201
1676299170,16cyclictest5116-21/usr/sbin/munin11:35:201
1676299170,16cyclictest4581-21H212:26:331
1676299170,16cyclictest4581-21H212:26:331
1676299170,16cyclictest4581-21H212:26:331
1676299170,16cyclictest4538-21H212:26:331
1676299170,16cyclictest4536-21H212:26:331
1676299170,16cyclictest4536-21H212:26:331
1676299170,16cyclictest4532-21H212:26:331
1676299170,16cyclictest23391-21apt09:15:141
1676299170,16cyclictest2122-21/usr/sbin/munin12:25:211
1676299170,16cyclictest1374-21munin-node08:18:591
1676299170,15cyclictest4532-21H212:26:331
1676299170,15cyclictest17541-21nfsd410:00:191
1675799172,14cyclictest9-21ksoftirqd/007:57:230
16757991714,2cyclictest5558-21cat09:40:140
16757991714,2cyclictest4534-21H212:26:330
16757991714,2cyclictest4532-21H212:26:330
16757991714,2cyclictest25597-21grep07:25:140
16757991714,2cyclictest1472-21lxd09:57:090
16757991714,2cyclictest13327-21ls08:00:170
16757991714,2cyclictest0-21swapper/009:22:570
16757991713,2cyclictest30064-21head09:25:190
1675799171,15cyclictest0-21swapper/010:56:510
1675799170,2cyclictest8032-21wc10:40:230
1675799170,2cyclictest4593-21H212:26:330
1675799170,2cyclictest24737-21cpuspeed_turbos10:15:130
1675799170,2cyclictest24737-21cpuspeed_turbos10:15:130
1675799170,2cyclictest24594-21nfsd409:15:180
1675799170,2cyclictest22702-21smtp11:08:130
1675799170,2cyclictest11166-21sshd10:45:290
1675799170,2cyclictest10830-21grep09:50:130
1675799170,1cyclictest4532-21H212:26:330
1675799170,1cyclictest0-21swapper/010:30:130
1675799170,16cyclictest9033-21latency11:40:180
1675799170,16cyclictest4855-21grep10:35:210
1675799170,16cyclictest4838-21grep08:40:240
1675799170,16cyclictest4581-21H212:26:330
1675799170,16cyclictest4581-21H212:26:330
1675799170,16cyclictest4536-21H212:26:330
1675799170,16cyclictest4534-21H212:26:330
1675799170,16cyclictest28346-21wc07:30:150
1675799170,16cyclictest25268-21timerwakeupswit11:10:240
1675799170,16cyclictest21171-21expr09:10:140
1675799170,16cyclictest16993-21nfsd408:05:190
1675799170,16cyclictest1620-21switchtime08:35:230
1675799170,16cyclictest15380-21cat11:50:210
1675799170,16cyclictest1472-21lxd09:49:090
1675799170,16cyclictest1405-21lxd10:25:080
1675799170,15cyclictest4536-21H212:26:330
16769991614,1cyclictest28907-21/usr/sbin/munin11:20:162
16769991614,1cyclictest0-21swapper/212:20:232
16769991614,1cyclictest0-21swapper/211:56:352
16769991614,1cyclictest0-21swapper/211:30:172
16769991614,1cyclictest0-21swapper/208:35:132
16769991614,1cyclictest0-21swapper/208:05:142
16769991613,2cyclictest5942-21awk08:45:122
1676999160,1cyclictest0-21swapper/212:15:132
1676999160,15cyclictest27047-21cpuspeed_turbos08:25:182
1676999160,15cyclictest19055-21cpuspeed_turbos10:05:122
1676999160,15cyclictest1285-21idleruntime12:25:162
1676999160,15cyclictest10732-21apache_volume09:50:122
1676999160,15cyclictest0-21swapper/209:55:172
16762991613,2cyclictest26502-21cut07:25:171
1676299160,2cyclictest11397-21awk07:55:191
1676299160,1cyclictest0-21swapper/108:40:191
1676299160,15cyclictest4593-21H212:26:331
16757991614,1cyclictest0-21swapper/012:10:210
16757991614,1cyclictest0-21swapper/009:35:150
16757991613,2cyclictest6425-21expr08:45:150
1675799160,2cyclictest21634-21ls08:15:130
1675799160,15cyclictest4532-21H212:26:330
1675799160,15cyclictest0-21swapper/009:00:010
1675799160,15cyclictest0-21swapper/008:20:070
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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