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2026-09-06 - 21:25
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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 100 highest latencies:
System rackdslot0.osadl.org (updated Sun Sep 06, 2026 12:45:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2309299270,4cyclictest0-21swapper/112:13:381
2309299270,22cyclictest0-21swapper/108:20:071
2309299240,23cyclictest0-21swapper/112:24:501
2309399230,20cyclictest0-21swapper/211:16:592
2309299232,1cyclictest0-21swapper/108:30:201
23092992312,6cyclictest5741-21sort09:30:141
2309299230,2cyclictest14855-21fschecks_count12:35:171
2309299230,2cyclictest11916-21fschecks_count09:40:141
2309299230,22cyclictest0-21swapper/108:45:131
2309199230,5cyclictest0-21swapper/010:17:550
2309199230,22cyclictest0-21swapper/010:55:280
2309199230,22cyclictest0-21swapper/010:55:280
23092992214,7cyclictest6684-21apt-config11:25:011
2309299221,20cyclictest0-21swapper/107:22:161
2309299221,1cyclictest120022sleep111:31:291
2309299220,2cyclictest7116-21apt-key11:25:001
2309299220,21cyclictest13746-21cat07:50:131
2309299220,1cyclictest0-21swapper/107:30:161
2309299220,17cyclictest863-21avahi-daemon07:10:201
2309299220,16cyclictest625-21ntpq07:25:191
2309299220,16cyclictest625-21ntpq07:25:191
23091992214,4cyclictest0-21swapper/009:46:390
23093992112,5cyclictest0-21swapper/212:26:522
2309299211,5cyclictest0-21swapper/110:30:541
2309299210,2cyclictest9892-21sed12:25:171
2309299210,2cyclictest9540-21/usr/sbin/munin09:35:171
2309299210,2cyclictest5134-21grep10:25:141
2309299210,2cyclictest28272-21nfsd412:00:181
2309299210,2cyclictest28182-21if_err_enp1s008:15:161
2309299210,2cyclictest24260-21latency_hist11:00:011
2309299210,2cyclictest24260-21latency_hist11:00:001
2309299210,2cyclictest20826-21chrt11:47:071
2309299210,20cyclictest0-21swapper/108:40:011
2309299210,1cyclictest9729-21cpuspeed_turbos08:40:131
2309299210,1cyclictest326212chrt11:11:111
2309299210,1cyclictest18907-21cut10:50:001
2309299210,1cyclictest15911-21timerwakeupswit09:45:221
2309299210,1cyclictest1197-21latency_hist10:20:011
2309299210,17cyclictest22646-21uname11:50:171
2309299210,16cyclictest4099-21H222:10:211
2309299210,16cyclictest25856-21grep08:10:171
2309299210,16cyclictest14463-21nfsd410:40:181
2309299210,15cyclictest4304-21expr09:25:171
2309399204,15cyclictest3991-21H222:10:212
23093992016,3cyclictest0-21swapper/207:40:172
2309399201,17cyclictest22470-21cut10:00:142
23092992015,4cyclictest0-21swapper/110:25:001
23092992014,5cyclictest282322chrt10:10:081
23092992014,5cyclictest0-21swapper/112:30:181
23092992014,5cyclictest0-21swapper/110:50:131
23092992014,5cyclictest0-21swapper/107:35:221
23092992013,6cyclictest1976-21chrt09:22:091
23092992013,6cyclictest0-21swapper/111:40:211
2309299200,2cyclictest3976-21H222:10:211
2309299200,2cyclictest1060-21thermald10:36:031
2309299200,1cyclictest0-21swapper/108:25:171
2309299200,19cyclictest3991-21H222:10:211
2309299200,19cyclictest0-21swapper/109:55:211
2309299200,19cyclictest0-21swapper/109:05:191
2309299200,19cyclictest0-21swapper/109:00:011
2309299200,19cyclictest0-21swapper/107:45:171
2309299200,16cyclictest4099-21H222:10:211
2309299200,15cyclictest0-21swapper/108:05:171
2309299200,15cyclictest0-21swapper/107:15:151
2309299200,14cyclictest0-21swapper/111:00:171
2309199203,2cyclictest1856-21systemd-udevd08:58:520
23091992014,5cyclictest0-21swapper/008:20:010
2309399192,16cyclictest3976-21H222:10:212
2309399192,11cyclictest11937-21apt-get08:45:012
23093991917,1cyclictest0-21swapper/212:12:022
23093991917,1cyclictest0-21swapper/210:30:222
23093991916,2cyclictest28-21ksoftirqd/208:49:482
2309399190,16cyclictest4099-21H222:10:212
2309399190,16cyclictest4035-21H222:10:212
2309399190,16cyclictest3985-21H222:10:212
23092991914,4cyclictest0-21swapper/111:55:161
23092991914,4cyclictest0-21swapper/111:05:031
23092991914,4cyclictest0-21swapper/107:40:151
23092991913,5cyclictest22646-21cat10:00:131
23092991912,6cyclictest21127-21taskset08:03:041
2309299190,1cyclictest3983-21H222:10:211
2309299190,1cyclictest0-21swapper/112:05:141
2309299190,1cyclictest0-21swapper/111:35:141
2309299190,1cyclictest0-21swapper/109:50:171
2309299190,1cyclictest0-21swapper/108:52:251
2309299190,0cyclictest0-21swapper/109:15:181
23091991917,1cyclictest9-21ksoftirqd/010:45:080
2309199190,2cyclictest3989-21H222:10:210
2309199190,2cyclictest3983-21H222:10:210
2309199190,16cyclictest3989-21H222:10:210
2309199190,16cyclictest3985-21H222:10:210
2309199190,16cyclictest3979-21H222:10:210
2309199190,16cyclictest3976-21H222:10:210
23093991816,1cyclictest28-21ksoftirqd/209:53:452
23093991816,1cyclictest0-21swapper/207:25:052
23093991816,1cyclictest0-21swapper/207:25:052
23093991815,2cyclictest25059-21cat11:00:152
23093991815,2cyclictest23419-21basename10:55:202
23093991815,2cyclictest23419-21basename10:55:192
23093991815,2cyclictest16833-21nfsd411:40:192
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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