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2026-06-03 - 22:31
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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 Wed Jun 03, 2026 12:46:02)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
20028992314,5cyclictest0-21swapper/211:45:212
2002899230,20cyclictest0-21swapper/211:43:362
20024992312,6cyclictest0-21swapper/008:50:000
2002499230,5cyclictest0-21swapper/010:29:580
20025992212,10cyclictest21-21ksoftirqd/109:02:431
2002499220,21cyclictest0-21swapper/012:15:290
2002599210,3cyclictest0-21swapper/108:15:151
2002599210,20cyclictest870-21systemd-logind08:01:511
2002499214,16cyclictest3414-21master10:52:080
20028992012,4cyclictest0-21swapper/212:27:162
2002599200,16cyclictest0-21swapper/107:11:441
20028991916,2cyclictest21899-21nfsd407:10:192
20028991914,1cyclictest0-21swapper/209:05:182
2002899190,3cyclictest23000-21dpkg10:05:002
2002599192,16cyclictest2850-21gmain10:35:201
20025991914,4cyclictest426-21systemd-udevd09:21:521
20025991914,1cyclictest0-21swapper/111:57:121
2002599190,18cyclictest870-21systemd-logind09:58:521
20024991917,1cyclictest0-21swapper/008:23:280
20024991915,3cyclictest0-21swapper/009:10:210
2002499190,5cyclictest0-21swapper/010:39:260
20028991816,1cyclictest251732chrt12:04:552
20028991814,3cyclictest1377-21lxd07:28:402
20028991814,3cyclictest1348-21lxd08:56:412
20028991814,3cyclictest0-21swapper/208:23:142
2002899181,16cyclictest863-21avahi-daemon10:45:192
2002899180,17cyclictest0-21swapper/211:37:192
2002599182,15cyclictest0-21swapper/108:05:211
2002599181,16cyclictest0-21swapper/108:40:181
2002599180,16cyclictest20227-21nfsd410:55:171
2002499182,1cyclictest0-21swapper/009:35:270
2002499182,15cyclictest10551-21chrt12:35:030
2002499182,15cyclictest0-21swapper/011:20:360
20024991816,1cyclictest30993-21ntp_kernel_err09:20:160
20024991816,1cyclictest28159-21grep09:15:190
2002499181,16cyclictest32043-21cat10:20:130
2002499180,1cyclictest0-21swapper/008:30:140
2002499180,16cyclictest28177-21http12:09:590
20028991715,1cyclictest28011-21fschecks_count11:10:162
20028991715,1cyclictest0-21swapper/207:42:212
20028991714,2cyclictest989-21gmain08:50:002
20028991714,2cyclictest29973-21sed12:10:182
20028991714,2cyclictest28171-21python312:09:592
20028991714,2cyclictest23016-21nfsd411:00:182
20028991714,2cyclictest14550-21snapd11:50:272
20028991714,2cyclictest14505-21snapd09:25:072
20028991714,2cyclictest10833-21expr12:35:132
20028991713,3cyclictest863-21avahi-daemon09:20:012
20028991713,3cyclictest0-21swapper/211:57:062
20028991713,3cyclictest0-21swapper/209:46:432
2002899171,2cyclictest2414-21idleruntime08:30:162
2002899171,15cyclictest3981-21H222:10:212
2002899170,2cyclictest3981-21H222:10:212
2002899170,2cyclictest31882-21cpuspeed_turbos12:15:132
2002899170,2cyclictest2922-21/usr/sbin/munin09:30:122
2002899170,2cyclictest26443-21nvmesmart_nvme008:15:192
2002899170,2cyclictest2298-21tr10:25:132
2002899170,2cyclictest1523-21lxd07:58:412
2002899170,2cyclictest1523-21lxd07:58:402
2002899170,2cyclictest12857-21/usr/sbin/munin07:50:232
2002899170,16cyclictest8584-21fschecks_time10:35:142
2002899170,16cyclictest8152-21tr07:45:132
2002899170,16cyclictest6871-21cat11:30:122
2002899170,16cyclictest5177-21grep07:40:022
2002899170,16cyclictest455-21plymouthd08:00:122
2002899170,16cyclictest3989-21H222:10:212
2002899170,16cyclictest31568-21grep11:15:182
2002899170,16cyclictest31254-21cron10:20:012
2002899170,16cyclictest25121-21grep11:05:152
2002899170,16cyclictest2275-21tr12:20:132
2002899170,16cyclictest20667-21grep08:05:192
2002899170,16cyclictest18992-21/usr/sbin/munin10:55:142
2002899170,16cyclictest16994-21hddtemp_smartct10:50:142
2002899170,16cyclictest1515-21lxd11:24:412
2002899170,16cyclictest14499-21snapd10:32:572
2002899170,16cyclictest12406-21systemctl10:40:212
2002899170,16cyclictest0-21swapper/210:14:552
20025991716,1cyclictest21-21ksoftirqd/112:15:171
20025991715,1cyclictest0-21swapper/110:45:201
20025991715,1cyclictest0-21swapper/109:15:341
20025991714,3cyclictest0-21swapper/108:55:131
20025991714,2cyclictest870-21systemd-logind09:08:521
20025991714,2cyclictest24535-21missed_timers07:15:171
20025991714,2cyclictest17499-21nfsd410:50:161
20025991714,2cyclictest1517-21lxd07:26:411
20025991714,2cyclictest1351-21lxd09:28:411
20025991714,2cyclictest1-21systemd10:10:511
2002599171,2cyclictest993-21dbus-daemon09:10:201
2002599171,15cyclictest6649-21ntpq07:40:201
2002599170,2cyclictest3989-21H222:10:211
2002599170,2cyclictest30271-21tr12:10:181
2002599170,2cyclictest2872-21systemd-logind09:32:511
2002599170,1cyclictest0-21swapper/112:21:531
2002599170,1cyclictest0-21swapper/111:04:261
2002599170,16cyclictest870-21systemd-logind12:03:521
2002599170,16cyclictest6586-21chrt10:30:181
2002599170,16cyclictest4811-21cpuspeed_turbos08:35:141
2002599170,16cyclictest455-21plymouthd10:05:031
2002599170,16cyclictest455-21plymouthd10:05:021
2002599170,16cyclictest4277-21cron08:35:011
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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