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2025-12-26 - 00:08
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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 100 highest latencies:
System rackdslot0.osadl.org (updated Thu Dec 25, 2025 12:46:02)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3190399263,22cyclictest0-21swapper/012:09:010
3190399240,2cyclictest17200-21grep07:40:120
3190899232,17cyclictest0-21swapper/107:29:351
3190399230,2cyclictest4229-21latency_hist08:15:020
3190399230,2cyclictest24829-21perf11:45:000
3190399230,2cyclictest21941-21nfsd412:35:170
3190399230,21cyclictest10779-21postgres09:21:210
3190399230,16cyclictest8286-21grep12:10:170
3190899220,21cyclictest0-21swapper/111:35:161
3190399223,18cyclictest0-21swapper/011:30:000
3190399221,4cyclictest0-21swapper/009:40:000
31903992213,8cyclictest2007-21systemd-journal09:15:510
3190399221,2cyclictest30295-21latency_hist11:55:000
3190399220,2cyclictest5623-21latency_hist07:20:020
3190399220,2cyclictest26751-21smartctl07:55:160
3190399220,2cyclictest21747-21expr08:45:140
3190399220,1cyclictest10938-21latency08:25:160
3190399220,1cyclictest0-21swapper/012:30:190
3190399220,1cyclictest0-21swapper/010:00:140
3190399220,1cyclictest0-21swapper/008:04:020
3190399220,16cyclictest16399-21chrt07:38:340
31908992117,3cyclictest0-21swapper/111:13:281
31903992115,5cyclictest32762sleep012:01:040
31903992115,5cyclictest15527-21tr10:30:140
31903992113,6cyclictest31025-21nvmesmart_nvme009:00:170
3190399211,1cyclictest0-21swapper/007:25:120
3190399211,15cyclictest26521-21awk09:50:180
3190399210,2cyclictest25525-21awk08:50:190
3190399210,2cyclictest25525-21awk08:50:180
3190399210,2cyclictest25423-21awk10:45:160
3190399210,2cyclictest24650-21chrt07:51:250
3190399210,2cyclictest12992-21processes09:25:200
3190399210,20cyclictest22116-21chrt09:44:330
3190399210,1cyclictest3647-21tune2fs11:05:140
3190399210,1cyclictest22252chrt11:03:450
3190399210,1cyclictest0-21swapper/012:21:020
3190399210,1cyclictest0-21swapper/011:35:130
3190399210,1cyclictest0-21swapper/011:00:010
3190399210,1cyclictest0-21swapper/010:50:150
3190399210,1cyclictest0-21swapper/008:40:150
3190399210,17cyclictest1351-21lxd10:36:410
3190399210,16cyclictest26016-21if_eno111:45:160
3190399210,15cyclictest2280-21ls10:05:190
3190399210,15cyclictest1380-21processes07:10:190
3190399210,14cyclictest0-21swapper/010:45:010
3191299200,16cyclictest0-21swapper/211:07:432
31908992018,1cyclictest8446-21ntp_kernel_pll_12:10:171
3190899200,13cyclictest0-21swapper/110:28:461
31903992014,5cyclictest29377-21latency_hist09:00:010
31903992014,5cyclictest20907-21missed_timers07:45:180
31903992014,5cyclictest0-21swapper/012:15:170
31903992014,5cyclictest0-21swapper/009:45:170
31903992014,5cyclictest0-21swapper/008:35:120
31903992013,6cyclictest15722-21cut08:35:010
3190399200,3cyclictest0-21swapper/011:15:220
3190399200,2cyclictest843-21systemd-network11:33:540
3190399200,2cyclictest3987-21H222:10:210
3190399200,2cyclictest17713-21latency_hist12:30:010
3190399200,1cyclictest0-21swapper/011:55:140
3190399200,1cyclictest0-21swapper/011:55:130
3190399200,1cyclictest0-21swapper/011:10:200
3190399200,1cyclictest0-21swapper/010:15:170
3190399200,1cyclictest0-21swapper/009:55:130
3190399200,1cyclictest0-21swapper/007:31:190
3190399200,1cyclictest0-21swapper/007:31:190
3190399200,19cyclictest7353-21cpuspeed_turbos08:20:160
3190399200,19cyclictest7173-21ps07:20:210
3190399200,15cyclictest15024-21cat10:29:590
3190399200,14cyclictest0-21swapper/009:10:000
31912991916,2cyclictest4035-21H222:10:212
3191299190,18cyclictest843-21systemd-network11:48:192
3191299190,18cyclictest0-21swapper/211:02:162
31908991917,1cyclictest21-21ksoftirqd/108:00:171
31908991915,3cyclictest0-21swapper/109:30:361
31903991914,4cyclictest307842chrt08:05:020
3190399190,2cyclictest0-21swapper/010:12:500
3190399190,2cyclictest0-21swapper/010:12:490
3190399190,1cyclictest4979-21sed09:10:220
3190399190,1cyclictest0-21swapper/010:20:160
3190399190,0cyclictest0-21swapper/008:18:360
3191299182,2cyclictest7736-21seq07:21:212
3191299182,15cyclictest28-21ksoftirqd/209:09:052
31912991816,1cyclictest28-21ksoftirqd/208:22:382
31912991816,1cyclictest0-21swapper/209:26:132
31912991815,2cyclictest8538-21ntp_offset10:15:172
31912991815,2cyclictest10973-21taskset07:28:522
31912991814,3cyclictest3987-21H222:10:212
31912991814,3cyclictest1483-21snapd09:42:392
3191299181,1cyclictest0-21swapper/209:50:162
3191299181,16cyclictest3991-21H222:10:212
3191299180,17cyclictest3983-21H222:10:212
3191299180,17cyclictest1481-21snapd07:52:392
3191299180,17cyclictest1057-21cron09:35:012
31908991816,1cyclictest21-21ksoftirqd/111:28:081
31908991816,1cyclictest21-21ksoftirqd/108:19:161
31908991816,1cyclictest21-21ksoftirqd/107:40:131
31908991815,3cyclictest21-21ksoftirqd/108:08:431
31908991815,2cyclictest8477-21cat09:20:011
31908991815,2cyclictest26844-21processes07:55:181
31908991815,2cyclictest0-21swapper/108:48:551
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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