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2026-04-26 - 13:05
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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 Apr 26, 2026 00:45:58)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1287399252,22cyclictest10325-21cut22:55:001
1287399250,24cyclictest843-21systemd-network19:59:511
1287399250,1cyclictest0-21swapper/120:20:201
1287399240,16cyclictest22564-21turbostat00:15:001
1287499230,5cyclictest0-21swapper/222:05:152
1287399234,18cyclictest0-21swapper/121:28:521
1287399231,21cyclictest68672chrt22:47:291
1287399231,21cyclictest319492sleep123:31:261
1287399231,21cyclictest17704-21ntp_kernel_pll_21:10:191
1287399230,3cyclictest21000-21munin-run19:25:001
1287399230,2cyclictest21394-21awk22:15:161
1287399230,2cyclictest19216-21sed22:10:221
1287399230,2cyclictest10635-21grep23:50:211
1287399230,1cyclictest0-21swapper/123:45:211
1287399230,1cyclictest0-21swapper/120:39:001
1287399230,1cyclictest0-21swapper/119:44:481
1287399221,6cyclictest0-21swapper/121:45:141
1287399221,20cyclictest18368-21nfsd420:15:181
1287399221,20cyclictest18368-21nfsd420:15:181
1287399220,3cyclictest13426-21grep23:00:151
1287399220,2cyclictest32503-21awk20:40:181
1287399220,2cyclictest19519-21expr23:10:131
1287399220,2cyclictest14593-21grep00:00:141
1287399220,2cyclictest13755-21expr21:05:131
1287399220,21cyclictest23676-21date22:20:161
1287399220,21cyclictest0-21swapper/121:40:121
1287399220,21cyclictest0-21swapper/121:00:231
1287399220,20cyclictest0-21swapper/100:09:011
1287399220,1cyclictest455-21plymouthd00:25:211
1287399220,1cyclictest0-21swapper/123:05:191
1287399220,1cyclictest0-21swapper/122:25:161
1287399220,1cyclictest0-21swapper/120:30:141
1287399220,1cyclictest0-21swapper/120:00:131
1287399220,1cyclictest0-21swapper/119:35:151
1287399220,1cyclictest0-21swapper/119:25:161
1287399220,16cyclictest7644-21grep21:50:191
1287399220,15cyclictest0-21swapper/123:35:201
1287299225,16cyclictest1856-21systemd-udevd21:08:520
1287299220,18cyclictest0-21swapper/023:29:440
12873992114,6cyclictest29323-21chrt23:27:411
12873992113,4cyclictest680-21fschecks_count19:45:151
1287399211,19cyclictest126952chrt22:57:061
1287399211,19cyclictest0-21swapper/121:30:181
1287399210,2cyclictest4278-21sessionclean00:39:001
1287399210,2cyclictest16264-21cat19:15:161
1287399210,20cyclictest3979-21H222:10:211
1287399210,20cyclictest0-21swapper/120:59:551
1287399210,20cyclictest0-21swapper/120:45:151
1287399210,1cyclictest0-21swapper/123:15:211
1287399210,1cyclictest0-21swapper/122:40:441
1287399210,1cyclictest0-21swapper/122:35:211
1287399210,1cyclictest0-21swapper/122:00:181
1287399210,1cyclictest0-21swapper/121:20:181
1287399210,1cyclictest0-21swapper/100:35:001
1287399210,19cyclictest0-21swapper/121:55:001
1287399210,16cyclictest4256-21fschecks_time23:40:151
1287399210,16cyclictest24625-21chrt20:27:221
1287399210,16cyclictest12964-21pzem_power20:05:211
1287399210,15cyclictest5860-21latency_hist19:55:011
1287399210,15cyclictest0-21swapper/123:55:201
1287399210,15cyclictest0-21swapper/122:30:141
1287399210,15cyclictest0-21swapper/121:35:171
1287399210,14cyclictest0-21swapper/122:05:141
12872992118,2cyclictest7067-21latency_hist22:50:000
1287299210,20cyclictest843-21systemd-network23:45:500
12873992013,6cyclictest24482-21cat19:30:141
12873992013,6cyclictest0-21swapper/120:50:171
1287399200,1cyclictest0-21swapper/123:20:181
1287399200,1cyclictest0-21swapper/123:20:171
1287399200,1cyclictest0-21swapper/119:10:131
1287399200,19cyclictest0-21swapper/121:15:191
1287399200,19cyclictest0-21swapper/100:21:291
1287299204,15cyclictest0-21swapper/020:38:290
1287499192,16cyclictest455-21plymouthd22:55:142
1287499190,3cyclictest0-21swapper/219:25:352
1287499190,16cyclictest3991-21H222:10:212
12873991913,5cyclictest0-21swapper/120:10:151
12872991917,1cyclictest0-21swapper/020:19:560
12872991917,1cyclictest0-21swapper/020:19:550
12874991816,1cyclictest936-21sessionclean22:38:592
12874991816,1cyclictest20388-21expr00:10:132
12874991816,1cyclictest0-21swapper/223:49:422
12874991815,2cyclictest14653-21ps19:10:202
12874991815,2cyclictest10008-21seq22:52:402
12874991814,2cyclictest0-21swapper/222:15:122
1287499180,2cyclictest20011-21sort00:10:002
1287499180,17cyclictest0-21swapper/223:25:212
1287499180,16cyclictest0-21swapper/221:44:222
1287299182,15cyclictest9-21ksoftirqd/021:57:370
12872991816,1cyclictest0-21swapper/019:26:370
12872991815,2cyclictest16074-21tr19:15:150
1287299180,3cyclictest426-21systemd-udevd21:12:510
1287299180,18cyclictest0-21swapper/019:44:560
1287299180,17cyclictest426-21systemd-udevd00:02:510
12874991714,2cyclictest3991-21H222:10:212
12874991714,2cyclictest3989-21H222:10:212
12874991714,2cyclictest3698-21timerwakeupswit00:35:232
12874991714,2cyclictest3428-21/usr/sbin/munin21:45:222
12874991714,2cyclictest32495-21nfsd420:40:172
12874991714,2cyclictest29094-21cat21:30:242
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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