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2025-12-06 - 12:36
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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 Sat Dec 06, 2025 00:45:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
27785992615,0cyclictest0-21swapper/223:51:002
27785992321,1cyclictest3465-21cut19:20:202
2778099230,5cyclictest0-21swapper/122:44:221
27780992117,3cyclictest0-21swapper/123:25:161
27780992112,0cyclictest0-21swapper/121:30:161
2777499214,11cyclictest13915-21gpgv22:35:000
27774992114,3cyclictest0-21swapper/019:13:250
2778599202,16cyclictest9568-21kernelversion20:30:192
27785992012,4cyclictest0-21swapper/220:17:342
27774992015,3cyclictest0-21swapper/022:15:220
2777499200,19cyclictest0-21swapper/000:29:030
27785991917,1cyclictest29513-21processes19:10:212
27785991915,3cyclictest19917-21nfsd400:35:192
27785991914,3cyclictest22727-21nvmesmart_nvme019:55:192
2778599190,3cyclictest8902-21nvmesmart_nvme019:30:202
2778599190,18cyclictest414-20systemd-journal22:39:002
2778599190,18cyclictest0-21swapper/222:25:172
2778099193,1cyclictest822-21cat21:10:211
2778099193,1cyclictest0-21swapper/123:00:571
2778099192,16cyclictest23362-21pzem23:45:221
27780991917,1cyclictest0-21swapper/100:10:131
27780991916,2cyclictest22238-21uname19:55:171
27780991916,2cyclictest20679-21chrt00:35:431
27780991915,3cyclictest0-21swapper/122:20:281
27780991914,4cyclictest0-21swapper/121:09:481
27780991913,2cyclictest0-21swapper/121:40:131
2777499193,15cyclictest0-21swapper/019:26:480
2777499192,2cyclictest15680-21chrt23:33:520
2777499191,16cyclictest1845-21systemd-journal23:36:520
2777499190,18cyclictest0-21swapper/022:05:160
2777499190,18cyclictest0-21swapper/020:31:020
2778599182,15cyclictest6866-21taskset00:14:142
27785991816,1cyclictest0-21swapper/221:55:062
27785991815,2cyclictest4538-21H212:26:332
27785991815,2cyclictest4089-21runrttasks22:15:192
27785991815,2cyclictest3350-21master20:36:302
27785991814,3cyclictest1472-21lxd23:26:582
27785991814,3cyclictest0-21swapper/223:33:092
2778599181,3cyclictest0-21swapper/221:30:182
2778599181,2cyclictest6668-21cat19:25:212
2778599180,2cyclictest4532-21H212:26:332
2778599180,17cyclictest9703-21run-parts00:20:012
2778599180,17cyclictest4637-21/usr/sbin/munin20:20:202
2778599180,17cyclictest3707-21lxd19:38:592
2778099182,1cyclictest0-21swapper/120:20:011
2778099182,15cyclictest8072-21smartctl00:15:151
2778099182,15cyclictest25658-21date22:55:011
2778099182,15cyclictest0-21swapper/122:16:021
2778099182,15cyclictest0-21swapper/119:50:151
2778099182,15cyclictest0-21swapper/119:50:141
2778099182,15cyclictest0-21swapper/119:20:221
27780991816,1cyclictest26034-21cat21:00:171
27780991816,1cyclictest0-21swapper/120:35:211
27780991815,2cyclictest8166-21chrt20:29:151
27780991815,2cyclictest31080-21expr19:15:141
27780991815,2cyclictest21829-21expr21:50:131
27780991815,2cyclictest17339-21needreboot23:35:171
27780991815,2cyclictest13599-21cat00:25:171
27780991815,1cyclictest0-21swapper/122:47:191
27780991814,3cyclictest0-21swapper/123:40:211
27780991814,1cyclictest0-21swapper/122:39:271
27780991813,1cyclictest0-21swapper/119:47:061
2778099181,16cyclictest29266-21plymouth23:55:221
2778099180,3cyclictest21012-21grep20:50:191
2778099180,3cyclictest12709-21apt-config00:25:011
27774991818,0cyclictest0-21swapper/022:22:270
27774991816,1cyclictest9-21ksoftirqd/023:29:150
27774991815,2cyclictest19974-21ntpq19:50:190
27774991815,2cyclictest19974-21ntpq19:50:190
27774991814,1cyclictest0-21swapper/019:30:210
2777499181,16cyclictest3441-21gsd-color20:05:130
2777499180,16cyclictest32555-21nfsd421:10:190
2778599172,1cyclictest0-21swapper/219:40:152
27785991715,1cyclictest0-21swapper/221:40:152
27785991714,2cyclictest8693-21fschecks_time23:20:182
27785991714,2cyclictest4523-21H212:26:332
27785991714,2cyclictest30919-21nfsd420:10:222
27785991714,2cyclictest2427-21fschecks_count23:10:142
27785991714,2cyclictest22966-21/usr/sbin/munin22:50:172
27785991714,2cyclictest20800-21chrt21:47:492
27785991714,2cyclictest17211-21grep19:45:192
27785991713,2cyclictest0-21swapper/200:22:002
2778599170,2cyclictest5095-21cstates21:20:152
2778599170,2cyclictest454-21plymouthd00:25:202
2778599170,2cyclictest28945-21cat23:00:132
2778599170,2cyclictest13808-21perf22:35:012
2778599170,16cyclictest7952-21expr21:25:162
2778599170,16cyclictest7181-21perf23:20:002
2778599170,16cyclictest4528-21H212:26:332
2778599170,16cyclictest32461-21nfsd423:05:172
2778599170,16cyclictest2528-21perf22:15:012
2778599170,16cyclictest22929-21expr20:55:152
2778599170,16cyclictest21159-21cat19:55:022
2778599170,16cyclictest21159-21cat19:55:012
2778599170,16cyclictest14865-21sort21:35:232
2778599170,16cyclictest14865-21sort21:35:232
2778599170,16cyclictest1411-21lxd00:34:582
2778599170,16cyclictest0-21swapper/223:36:152
2778099172,14cyclictest21-21ksoftirqd/123:20:071
27780991715,1cyclictest9866-21nfsd420:30:211
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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