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2025-12-10 - 22:40
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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 792 highest latencies:
System rackdslot0.osadl.org (updated Wed Dec 10, 2025 12:45:53)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2174099280,27cyclictest0-21swapper/008:55:160
2174099257,15cyclictest0-21swapper/010:46:220
2174099250,1cyclictest0-21swapper/008:20:220
2174299230,18cyclictest0-21swapper/210:06:272
2174199230,5cyclictest0-21swapper/108:02:281
2174199230,20cyclictest0-21swapper/111:45:261
2174099230,5cyclictest0-21swapper/007:32:230
2174299210,20cyclictest823-21systemd-network09:44:532
21740992118,2cyclictest13773-21kernelversion07:50:180
2174099204,15cyclictest0-21swapper/011:16:010
2174099204,15cyclictest0-21swapper/010:20:220
2174299194,1cyclictest0-21swapper/208:37:052
21742991916,2cyclictest922-21rs:main2
2174299190,3cyclictest1591-21systemd07:27:072
2174299190,2cyclictest4534-21H212:26:332
2174299190,16cyclictest4523-21H212:26:332
2174199193,1cyclictest15149-21which08:50:161
21741991917,1cyclictest21-21ksoftirqd/108:34:151
21741991917,1cyclictest0-21swapper/110:43:341
21741991916,2cyclictest32581-21chrt10:18:471
2174199190,16cyclictest4530-21H212:26:331
2174199190,16cyclictest4528-21H212:26:331
2174099192,1cyclictest0-21swapper/011:50:200
21740991917,1cyclictest9-21ksoftirqd/011:30:130
21740991917,1cyclictest0-21swapper/011:42:200
21740991917,1cyclictest0-21swapper/011:23:300
21740991917,1cyclictest0-21swapper/008:53:440
21740991917,1cyclictest0-21swapper/008:16:040
21740991915,1cyclictest0-21swapper/010:10:160
2174099190,3cyclictest0-21swapper/010:05:300
2174099190,18cyclictest0-21swapper/012:25:120
2174099190,18cyclictest0-21swapper/010:55:020
2174099190,16cyclictest4532-21H212:26:330
2174299182,15cyclictest28-21ksoftirqd/212:04:002
2174299182,15cyclictest24763-21missed_timers11:00:172
2174299182,15cyclictest23967-21chrt10:00:312
2174299182,15cyclictest23967-21chrt10:00:302
21742991816,1cyclictest0-21swapper/207:32:172
21742991815,2cyclictest29441-21apache_accesses08:20:122
21742991814,3cyclictest4526-21H212:26:332
21742991814,3cyclictest0-21swapper/208:55:172
2174299181,2cyclictest32438-21chrt10:16:572
2174299181,1cyclictest4523-21H212:26:332
2174299181,16cyclictest7878-21basename11:30:002
21742991810,7cyclictest893-21systemd-logind07:22:072
2174299180,17cyclictest4530-21H212:26:332
2174299180,15cyclictest4536-21H212:26:332
2174199182,2cyclictest4530-21H212:26:331
21741991816,1cyclictest0-21swapper/108:20:171
21741991815,2cyclictest4530-21H212:26:331
21741991814,3cyclictest4532-21H212:26:331
2174199181,1cyclictest20543-21grep09:00:171
2174199181,16cyclictest25976-21nfsd410:05:201
2174199180,2cyclictest4536-21H212:26:331
2174199180,17cyclictest30008-21snapd10:53:191
2174199180,16cyclictest4523-21H212:26:331
2174199180,15cyclictest4593-21H212:26:331
2174099182,15cyclictest9-21ksoftirqd/008:44:210
2174099182,15cyclictest0-21swapper/009:23:560
2174099182,15cyclictest0-21swapper/009:10:580
21740991816,1cyclictest0-21swapper/010:50:310
21740991815,2cyclictest7712-21chrt11:28:310
21740991815,2cyclictest13456-21seq11:36:070
2174099181,2cyclictest15483-21nfsd412:35:180
2174099181,1cyclictest0-21swapper/009:55:200
2174099180,2cyclictest0-21swapper/008:00:150
2174099180,17cyclictest0-21swapper/009:30:190
2174099180,16cyclictest4530-21H212:26:330
2174299172,1cyclictest0-21swapper/207:10:232
21742991715,1cyclictest0-21swapper/211:48:062
21742991715,1cyclictest0-21swapper/208:40:202
21742991714,2cyclictest7616-21/usr/sbin/munin09:35:132
21742991714,2cyclictest4528-21H212:26:332
21742991714,2cyclictest4528-21H212:26:332
21742991714,2cyclictest4523-21H212:26:332
21742991714,2cyclictest3211-21cat08:30:142
21742991714,2cyclictest32005-21sendmail-mta11:15:032
21742991714,2cyclictest27906-21nfsd408:15:222
21742991714,2cyclictest27835-21tr10:10:152
21742991714,2cyclictest19573-21expr09:55:152
21742991714,2cyclictest1555-21lxd12:12:492
21742991714,2cyclictest14846-21grep11:40:132
21742991714,2cyclictest11798-21expr11:35:132
21742991714,1cyclictest7466-21nvmesmart_nvme012:20:192
21742991713,3cyclictest22427-21nfsd408:05:182
21742991713,1cyclictest0-21swapper/208:50:182
2174299170,2cyclictest4532-21H212:26:332
2174299170,2cyclictest30224-21pzem_voltage09:15:232
2174299170,2cyclictest30001-21snapd09:06:292
2174299170,2cyclictest28199-21taskset11:05:212
2174299170,2cyclictest2800-21expr11:20:142
2174299170,2cyclictest25373-21nvmesmart_nvme008:10:202
2174299170,2cyclictest13088-21ntp_kernel_pll_08:45:212
2174299170,2cyclictest13049-21pzem_voltage12:30:212
2174299170,1cyclictest4532-21H212:26:332
2174299170,16cyclictest9705-21munin-run07:45:002
2174299170,16cyclictest5375-21cron12:17:002
2174299170,16cyclictest4536-21H212:26:332
2174299170,16cyclictest4526-21H212:26:332
2174299170,16cyclictest30471-21tail11:10:172
2174299170,16cyclictest23135-21apt-config11:55:012
2174299170,16cyclictest21152-21nfsd409:00:192
2174299170,16cyclictest12865-21wc07:50:142
2174299170,16cyclictest0-21swapper/211:50:152
2174299170,15cyclictest4530-21H212:26:332
2174299170,15cyclictest4528-21H212:26:332
2174199172,1cyclictest21-21ksoftirqd/107:17:431
21741991715,1cyclictest21-21ksoftirqd/111:50:041
21741991715,1cyclictest0-21swapper/112:18:571
21741991715,1cyclictest0-21swapper/111:30:201
21741991714,2cyclictest4593-21H212:26:331
21741991714,2cyclictest4593-21H212:26:331
21741991714,2cyclictest4532-21H212:26:331
21741991714,2cyclictest31930-21cstates09:20:131
21741991714,2cyclictest29997-21snapd10:28:191
21741991714,2cyclictest29175-21https12:05:031
21741991714,2cyclictest25003-21awk11:00:171
21741991714,2cyclictest0-21swapper/107:32:161
21741991713,3cyclictest4536-21H212:26:331
2174199170,2cyclictest4536-21H212:26:331
2174199170,2cyclictest4530-21H212:26:331
2174199170,2cyclictest3707-21lxd11:25:041
2174199170,2cyclictest30005-21snapd11:20:491
2174199170,2cyclictest30005-21snapd09:52:191
2174199170,1cyclictest4593-21H212:26:331
2174199170,1cyclictest0-21swapper/112:26:551
2174199170,1cyclictest0-21swapper/107:25:341
2174199170,17cyclictest0-21swapper/109:33:181
2174199170,16cyclictest6382-21expr12:20:131
2174199170,16cyclictest4593-21H212:26:331
2174199170,16cyclictest4536-21H212:26:331
2174199170,16cyclictest30008-21snapd08:36:491
2174199170,16cyclictest29267-21fschecks_count09:15:161
2174199170,16cyclictest28955-21nvmesmart_nvme007:20:231
2174199170,16cyclictest25115-21munin-run09:10:001
2174199170,16cyclictest22109-21cpuspeed_turbos10:00:141
2174199170,16cyclictest22109-21cpuspeed_turbos10:00:131
2174199170,16cyclictest16941-21munin-run12:40:001
2174199170,16cyclictest12541-21ps09:40:201
2174199170,15cyclictest4530-21H212:26:331
2174099172,1cyclictest9-21ksoftirqd/009:00:150
21740991715,1cyclictest0-21swapper/012:15:180
21740991715,1cyclictest0-21swapper/009:44:380
21740991715,1cyclictest0-21swapper/008:10:420
21740991714,2cyclictest9536-21chrt07:43:080
21740991714,2cyclictest4538-21H212:26:330
21740991714,2cyclictest4536-21H212:26:330
21740991713,2cyclictest5091-21http_loadtime10:25:150
2174099171,15cyclictest28773-21grep09:15:150
2174099170,3cyclictest0-21swapper/007:10:150
2174099170,2cyclictest30510-21apt-config07:25:010
2174099170,2cyclictest27076-21fschecks_time11:05:140
2174099170,2cyclictest24572-21nfsd411:55:190
2174099170,16cyclictest995-21irqbalance09:26:520
2174099170,16cyclictest8160-21perf08:40:000
2174099170,16cyclictest8125-21expr09:35:140
2174099170,16cyclictest4534-21H212:26:330
2174099170,16cyclictest4534-21H212:26:330
2174099170,16cyclictest4532-21H212:26:330
2174099170,16cyclictest32248-21nfsd407:25:200
2174099170,16cyclictest29464-21gdbus12:05:000
2174099170,16cyclictest25521-21basename07:15:170
2174099170,16cyclictest24978-21nfsd411:00:170
2174099170,16cyclictest22989-21sed10:00:170
2174099170,16cyclictest22989-21sed10:00:170
2174099170,16cyclictest16822-21grep07:55:190
2174099170,16cyclictest1059-21cups-browsed12:20:200
21742991614,1cyclictest1272-21kerneloops10:20:022
21742991614,1cyclictest0-21swapper/212:25:412
21742991614,1cyclictest0-21swapper/210:35:182
21742991614,1cyclictest0-21swapper/209:45:142
21742991614,1cyclictest0-21swapper/209:30:112
21742991613,2cyclictest4534-21H212:26:332
2174299160,1cyclictest4727-21cpuspeed_turbos07:35:162
2174299160,15cyclictest0-21swapper/210:30:162
21741991614,1cyclictest4535-21H212:26:331
21741991614,1cyclictest26806-21cpuspeed_turbos08:15:161
21741991614,1cyclictest20373-21sed09:55:191
21741991614,1cyclictest0-21swapper/111:55:141
21741991614,1cyclictest0-21swapper/111:10:151
21741991614,1cyclictest0-21swapper/110:20:171
21741991614,1cyclictest0-21swapper/108:45:161
2174199160,2cyclictest32754-21expr08:25:141
2174199160,2cyclictest12857-21dpkg07:50:131
2174199160,1cyclictest15558-21/usr/sbin/munin07:55:131
2174199160,1cyclictest0-21swapper/108:10:181
2174199160,15cyclictest17903-21sed08:55:181
2174199160,15cyclictest13789-21/usr/sbin/munin09:45:131
2174199160,15cyclictest0-21swapper/108:05:161
21740991613,2cyclictest7092-21dpkg10:30:140
21740991613,2cyclictest21800-21sed08:05:160
21740991613,2cyclictest1404-21lxd09:05:040
21740991613,2cyclictest10333-21expr10:35:140
2174099160,2cyclictest4941-21expr07:35:150
2174099160,15cyclictest1394-21/usr/sbin/munin08:25:210
2174099160,15cyclictest10385-21cstates07:45:170
2174099160,15cyclictest0-21swapper/011:10:120
2174099160,15cyclictest0-21swapper/009:45:190
2174099160,15cyclictest0-21swapper/008:45:230
2174099160,15cyclictest0-21swapper/008:30:140
21741991513,1cyclictest0-21swapper/111:15:161
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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