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2026-05-10 - 23:21
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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 May 10, 2026 12:46:00)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1054999230,5cyclictest0-21swapper/110:27:511
1055599224,17cyclictest0-21swapper/210:41:452
10545992221,1cyclictest28867-21mii-tool09:35:160
1054599220,21cyclictest0-21swapper/012:10:130
10555992118,2cyclictest3414-21master10:49:382
1055599210,3cyclictest0-21swapper/208:30:102
1055599210,3cyclictest0-21swapper/208:30:102
10549992110,10cyclictest0-21swapper/112:25:101
1054999210,18cyclictest0-21swapper/111:06:111
1054599215,15cyclictest22426-21latency_hist11:20:010
10545992114,4cyclictest0-21swapper/011:50:150
1054599210,17cyclictest946-21fschecks_time12:35:150
10555992014,5cyclictest0-21swapper/209:51:072
10555992014,5cyclictest0-21swapper/209:51:072
1055599200,17cyclictest0-21swapper/211:50:192
10549992017,2cyclictest1103-21ntpd07:50:221
10545992016,3cyclictest0-21swapper/012:31:480
1055599193,15cyclictest17516-21sshd10:10:212
1055599191,3cyclictest24487-21apt07:35:002
1055599191,17cyclictest0-21swapper/211:55:462
1055599190,1cyclictest0-21swapper/211:21:102
1054999190,18cyclictest0-21swapper/109:03:411
1054999190,15cyclictest0-21swapper/107:26:101
1054599192,3cyclictest0-21swapper/008:29:290
10545991917,1cyclictest5064-21grep09:50:130
10545991917,1cyclictest5064-21grep09:50:130
10545991917,1cyclictest22870-21cat11:20:120
10545991914,3cyclictest18075-21cut07:20:170
1054599190,18cyclictest0-21swapper/012:29:230
1054599190,17cyclictest3987-21H222:10:210
10555991816,1cyclictest0-21swapper/209:35:012
10555991813,3cyclictest3784-21munin-plugin-st07:55:012
1055599180,17cyclictest23635-21munin-run08:30:002
1055599180,17cyclictest2007-21systemd-journal12:23:192
1055599180,17cyclictest16409-21latency_hist07:20:012
10549991816,1cyclictest0-21swapper/110:48:251
10549991816,1cyclictest0-21swapper/107:23:461
10549991815,2cyclictest31162-21nfsd412:30:191
10549991815,2cyclictest27418-21chrt11:28:091
10549991814,3cyclictest455-21plymouthd08:25:011
1054999181,2cyclictest28165-21ntpq08:35:191
1054999181,16cyclictest0-21swapper/109:35:011
10549991811,3cyclictest0-21swapper/108:02:541
1054999180,17cyclictest843-21systemd-network10:22:141
1054999180,16cyclictest10654-21bounce10:55:351
1054999180,15cyclictest0-21swapper/109:25:131
1054599183,1cyclictest0-21swapper/008:16:470
10545991816,1cyclictest0-21swapper/010:55:150
10545991815,2cyclictest23320-21sed10:20:200
10545991815,2cyclictest21805-21sort07:30:000
10545991814,3cyclictest3978-21H222:10:210
10545991814,3cyclictest24434-21sed12:20:010
1054599181,2cyclictest11050-21grep08:05:170
1054599181,16cyclictest23334-21grep07:30:170
10545991810,4cyclictest0-21swapper/009:05:190
1054599180,17cyclictest20909-21tar08:25:000
10555991715,1cyclictest29950-21chrt11:30:352
10555991715,1cyclictest0-21swapper/208:45:182
10555991714,2cyclictest7811-21missed_timers08:00:162
10555991714,2cyclictest770-21latency_hist11:40:012
10555991714,2cyclictest770-21latency_hist11:40:002
10555991714,2cyclictest4035-21H222:10:212
10555991714,2cyclictest3982-21H222:10:212
10555991714,2cyclictest31452-21timerwakeupswit10:35:222
10555991714,2cyclictest30738-21if_eno112:30:152
10555991714,2cyclictest28731-21sed07:40:172
10555991714,2cyclictest26351-21sed11:25:172
10555991714,2cyclictest20108-21ps10:15:182
10555991714,2cyclictest15945-21lxd10:54:442
10555991714,2cyclictest12484-21missed_timers11:00:172
10555991714,2cyclictest10365-21ls10:00:142
10555991713,3cyclictest26970-21cpuspeed_turbos10:30:132
1055599170,2cyclictest2007-21systemd-journal11:05:032
1055599170,2cyclictest17078-21expr07:20:132
1055599170,2cyclictest13655-21sed10:05:172
1055599170,2cyclictest0-21swapper/209:25:112
1055599170,16cyclictest5930-21/usr/sbin/munin08:55:232
1055599170,16cyclictest31329-21sed08:40:202
1055599170,16cyclictest31067-21expr09:40:132
1055599170,16cyclictest29201-21chrt08:39:352
1055599170,16cyclictest26645-21cut10:30:012
1055599170,16cyclictest2403-21cat11:40:172
1055599170,16cyclictest21737-21vmstat11:15:212
1055599170,16cyclictest19217-21sed12:10:142
1055599170,16cyclictest18257-21/usr/sbin/munin08:20:182
1055599170,16cyclictest18081-21cat11:10:162
1055599170,16cyclictest15698-21ls12:05:122
1055599170,16cyclictest12964-21grep08:10:142
1055599170,16cyclictest12166-21nfsd407:10:172
1055599170,16cyclictest0-21swapper/210:20:192
1055599170,16cyclictest0-21swapper/207:25:182
10549991714,2cyclictest993-21dbus-daemon09:09:001
10549991714,2cyclictest399-20systemd-journal10:30:011
10549991714,2cyclictest30732-21wc11:35:141
10549991714,2cyclictest30732-21wc11:35:131
10549991714,2cyclictest27357-21chrt07:40:001
10549991714,2cyclictest23642-21ps07:30:191
10549991714,2cyclictest16230-21perl08:15:161
10549991714,2cyclictest1587-21nfsd412:35:171
10549991714,2cyclictest1522-21lxd09:50:431
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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