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2025-09-18 - 20:07
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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 Sep 18, 2025 12:45:55)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1512699220,4cyclictest0-21swapper/011:25:210
15137992118,2cyclictest4528-21H212:26:332
15137992111,5cyclictest0-21swapper/209:07:202
1513799210,21cyclictest0-21swapper/211:43:452
1513399212,18cyclictest0-21swapper/111:58:111
15126992018,1cyclictest9-21ksoftirqd/008:39:450
1513799192,16cyclictest26445-21cut08:25:152
15137991914,2cyclictest26205-21python312:15:002
1513799190,2cyclictest4523-21H212:26:332
1513399192,16cyclictest25436-21invoke-rc.d08:25:011
15133991916,2cyclictest4528-21H212:26:331
15133991915,3cyclictest0-21swapper/108:58:061
1513399190,18cyclictest4530-21H212:26:331
1513399190,16cyclictest4593-21H212:26:331
1513399190,16cyclictest4581-21H212:26:331
1513399190,16cyclictest4534-21H212:26:331
1512699193,1cyclictest17245-21cat11:55:230
1512699192,2cyclictest970-21dbus-daemon07:35:210
1512699192,16cyclictest970-21dbus-daemon10:40:220
1513799182,15cyclictest4593-21H212:26:332
1513799182,15cyclictest0-21swapper/212:35:012
15137991816,1cyclictest3377-21mailstats08:40:222
15137991816,1cyclictest23442-21latency08:20:192
15137991816,1cyclictest0-21swapper/208:16:052
15137991815,2cyclictest3707-21lxd12:27:032
15137991814,3cyclictest4526-21H212:26:332
15137991814,3cyclictest0-21swapper/207:38:062
15137991813,4cyclictest0-21swapper/207:45:272
15137991813,2cyclictest4530-21H212:26:332
1513799181,16cyclictest4523-21H212:26:332
1513799181,16cyclictest3894-21timerandwakeup10:35:222
1513799180,1cyclictest4593-21H212:26:332
1513799180,15cyclictest4528-21H212:26:332
15133991818,0cyclictest0-21swapper/109:25:171
15133991816,1cyclictest0-21swapper/107:47:101
15133991815,1cyclictest0-21swapper/112:15:001
15133991814,3cyclictest4581-21H212:26:331
15133991814,3cyclictest4523-21H212:26:331
15133991814,3cyclictest0-21swapper/111:48:331
15133991814,2cyclictest4534-21H212:26:331
1513399181,1cyclictest0-21swapper/109:40:321
1513399181,15cyclictest0-21swapper/112:00:131
1513399180,2cyclictest4593-21H212:26:331
1513399180,2cyclictest4526-21H212:26:331
1513399180,1cyclictest1874-21apache_processe10:35:121
1513399180,17cyclictest4593-21H212:26:331
1513399180,16cyclictest4530-21H212:26:331
1513399180,16cyclictest4528-21H212:26:331
1513399180,16cyclictest4526-21H212:26:331
1513399180,16cyclictest25251-21latency_hist08:25:011
1513399180,15cyclictest4581-21H212:26:331
1513399180,15cyclictest4528-21H212:26:331
1513399180,15cyclictest4523-21H212:26:331
1512699182,1cyclictest9-21ksoftirqd/010:57:260
1512699182,1cyclictest273242sleep011:16:010
1512699182,15cyclictest20439-21sed09:10:220
1512699182,15cyclictest0-21swapper/011:40:180
15126991816,1cyclictest0-21swapper/011:30:180
15126991815,2cyclictest4530-21H212:26:330
15126991815,2cyclictest4528-21H212:26:330
15126991814,3cyclictest4526-21H212:26:330
15126991814,3cyclictest16572-21tail07:10:170
1512699180,2cyclictest4581-21H212:26:330
1512699180,2cyclictest4534-21H212:26:330
1512699180,2cyclictest4530-21H212:26:330
1512699180,16cyclictest1493-21munin-run10:35:000
1512699180,15cyclictest4593-21H212:26:330
1513799172,1cyclictest28-21ksoftirqd/211:56:012
15137991715,1cyclictest18713-21expr12:00:142
15137991714,2cyclictest8573-21expr10:45:142
15137991714,2cyclictest7827-21dump-pmu-power10:45:012
15137991714,2cyclictest4581-21H212:26:332
15137991714,2cyclictest4538-21H212:26:332
15137991714,2cyclictest4530-21H212:26:332
15137991714,2cyclictest4523-21H212:26:332
15137991714,2cyclictest4523-21H212:26:332
15137991714,2cyclictest31681-21vmstat12:20:252
15137991714,2cyclictest31681-21vmstat12:20:252
15137991714,2cyclictest29769-21ps10:25:202
15137991714,2cyclictest18105-21/usr/sbin/munin07:15:112
15137991712,2cyclictest4530-21H212:26:332
1513799171,15cyclictest4530-21H212:26:332
1513799171,15cyclictest24557-21latency07:25:212
1513799171,0cyclictest0-21swapper/211:05:282
1513799170,2cyclictest953-21cut07:40:172
1513799170,2cyclictest4538-21H212:26:332
1513799170,2cyclictest4525-21H212:26:332
1513799170,2cyclictest29769-21pzem_power08:30:202
1513799170,2cyclictest1354-21lxd09:01:022
1513799170,2cyclictest0-21swapper/211:25:102
1513799170,1cyclictest4534-21H212:26:332
1513799170,1cyclictest0-21swapper/209:15:182
1513799170,16cyclictest4581-21H212:26:332
1513799170,16cyclictest4530-21H212:26:332
1513799170,16cyclictest4526-21H212:26:332
1513799170,16cyclictest4526-21H212:26:332
1513799170,16cyclictest4526-21H212:26:332
1513799170,16cyclictest3777-21expr09:40:152
1513799170,16cyclictest27327-21ls10:20:252
1513799170,16cyclictest24387-21/usr/sbin/munin09:20:142
1513799170,16cyclictest21386-21nfsd410:10:162
1513799170,16cyclictest21386-21nfsd410:10:162
1513799170,16cyclictest15643-21postgres10:00:182
1513799170,16cyclictest0-21swapper/208:55:152
1513799170,16cyclictest0-21swapper/207:55:222
1513799170,15cyclictest4534-21H212:26:332
1513399172,1cyclictest0-21swapper/111:10:131
15133991714,2cyclictest7620-21nfsd409:45:151
15133991714,2cyclictest4534-21H212:26:331
15133991714,2cyclictest4523-21H212:26:331
15133991714,2cyclictest29468-21cut12:20:001
15133991714,2cyclictest19584-21expr11:05:141
15133991714,2cyclictest16516-21if_lxdbr009:05:181
15133991713,3cyclictest4530-21H212:26:331
15133991713,3cyclictest28874-21cat07:35:011
15133991713,2cyclictest4528-21H212:26:331
1513399171,15cyclictest21-21ksoftirqd/112:30:441
1513399170,2cyclictest9794-21sendmail_mailtr07:55:251
1513399170,2cyclictest9718-21processes10:45:201
1513399170,2cyclictest4534-21H212:26:331
1513399170,2cyclictest4526-21H212:26:331
1513399170,2cyclictest28622-21expr08:30:131
1513399170,2cyclictest14261-21ntp_kernel_err09:00:171
1513399170,2cyclictest12333-21chrt08:00:191
1513399170,16cyclictest6166-21gpgv12:35:001
1513399170,16cyclictest4538-21H212:26:331
1513399170,16cyclictest4534-21H212:26:331
1513399170,16cyclictest4523-21H212:26:331
1513399170,16cyclictest414-20systemd-journal11:55:001
1513399170,16cyclictest23037-21expr10:15:141
1513399170,16cyclictest17718-21perf07:15:011
1513399170,16cyclictest1679-21pzem_power12:25:211
1513399170,16cyclictest1508-21nfsd409:35:201
1513399170,16cyclictest1402-21lxd09:13:021
1513399170,16cyclictest0-21swapper/110:13:281
1513399170,16cyclictest0-21swapper/110:13:281
1513399170,15cyclictest0-21swapper/112:25:011
1513399170,15cyclictest0-21swapper/112:25:011
1513399170,15cyclictest0-21swapper/110:50:121
1513399170,15cyclictest0-21swapper/109:55:481
1512699172,1cyclictest0-21swapper/010:19:030
15126991715,1cyclictest9-21ksoftirqd/009:38:260
15126991715,1cyclictest9-21ksoftirqd/007:28:570
15126991714,2cyclictest4593-21H212:26:330
15126991714,2cyclictest4593-21H212:26:330
15126991714,2cyclictest4581-21H212:26:330
15126991714,2cyclictest4538-21H212:26:330
15126991714,2cyclictest4538-21H212:26:330
15126991714,2cyclictest4526-21H212:26:330
15126991714,2cyclictest1644-21apache_processe08:40:130
15126991714,1cyclictest0-21swapper/007:42:130
15126991713,1cyclictest0-21swapper/009:55:480
15126991712,2cyclictest4528-21H212:26:330
15126991712,2cyclictest4528-21H212:26:330
1512699171,1cyclictest4538-21H212:26:330
1512699170,2cyclictest6117-21tune2fs07:50:160
1512699170,2cyclictest4593-21H212:26:330
1512699170,2cyclictest4528-21H212:26:330
1512699170,2cyclictest4528-21H212:26:330
1512699170,2cyclictest4526-21H212:26:330
1512699170,2cyclictest4526-21H212:26:330
1512699170,2cyclictest30025-21snapd08:29:310
1512699170,2cyclictest25653-21awk09:20:190
1512699170,1cyclictest4523-21H212:26:330
1512699170,1cyclictest0-21swapper/007:33:450
1512699170,16cyclictest970-21dbus-daemon08:15:210
1512699170,16cyclictest6250-21apt-config12:35:010
1512699170,16cyclictest5065-21sed09:40:220
1512699170,16cyclictest4593-21H212:26:330
1512699170,16cyclictest4538-21H212:26:330
1512699170,16cyclictest4530-21H212:26:330
1512699170,16cyclictest4523-21H212:26:330
1512699170,16cyclictest30981-21sed09:30:210
1512699170,16cyclictest25973-21expr10:20:180
1512699170,16cyclictest10121-21cpuspeed_turbos11:45:140
1512699170,15cyclictest4528-21H212:26:330
1512699170,15cyclictest4523-21H212:26:330
1512699170,15cyclictest4523-21H212:26:330
1512699170,15cyclictest0-21swapper/012:26:110
15137991614,1cyclictest32416-21ntp_kernel_pll_10:30:182
15137991614,1cyclictest0-21swapper/211:45:122
15137991614,1cyclictest0-21swapper/211:10:222
15137991614,1cyclictest0-21swapper/209:45:122
15137991614,1cyclictest0-21swapper/207:10:172
15137991613,2cyclictest26985-21tune2fs07:30:132
1513799160,1cyclictest4526-21H212:26:332
1513799160,15cyclictest20995-21cpuspeed_turbos07:20:132
1513799160,15cyclictest0-21swapper/211:20:142
15133991614,1cyclictest0-21swapper/107:25:211
1513399160,15cyclictest0-21swapper/110:25:031
1513399160,15cyclictest0-21swapper/108:05:191
1513399160,15cyclictest0-21swapper/107:50:151
1513399160,15cyclictest0-21swapper/107:35:501
15126991614,1cyclictest27152-21apache_volume09:25:130
15126991614,1cyclictest0-21swapper/011:50:440
1512699160,1cyclictest0-21swapper/008:00:190
1512699160,1cyclictest0-21swapper/007:45:160
1512699160,15cyclictest4581-21H212:26:330
1512699160,15cyclictest20744-21uniq10:10:130
1512699160,15cyclictest20744-21uniq10:10:130
1512699160,15cyclictest0-21swapper/010:05:150
1512699160,15cyclictest0-21swapper/009:15:020
1512699160,15cyclictest0-21swapper/007:55:140
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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