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2026-06-18 - 01:30
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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 highest latencies:
System rackdslot0.osadl.org (updated Wed Jun 17, 2026 12:46:00)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
11095992613,8cyclictest32275-21idleruntime08:40:161
11094992522,2cyclictest1021-21mii-tool12:30:130
1109699243,6cyclictest0-21swapper/211:04:222
11096992414,5cyclictest0-21swapper/208:15:132
1109699240,6cyclictest0-21swapper/210:55:492
1109699240,22cyclictest843-21systemd-network09:01:142
1109699232,1cyclictest0-21swapper/208:54:282
1109699231,1cyclictest0-21swapper/211:30:132
1109699230,3cyclictest28654-21users10:25:212
1109699230,3cyclictest0-21swapper/208:09:222
1109699230,2cyclictest6775-21apt-config09:50:002
1109699230,2cyclictest32665-21gpgv09:40:022
1109699230,2cyclictest1356-21cat07:50:022
11095992316,6cyclictest3979-21H222:10:211
11096992214,7cyclictest25159-21cut10:20:182
11096992214,6cyclictest3983-21H222:10:212
1109699220,2cyclictest31946-21sendmail-mta12:27:142
1109699220,2cyclictest30943-21munin-run07:45:012
1109699220,2cyclictest3031-21cut12:35:012
1109699220,2cyclictest27143-21apache_processe12:20:112
1109699220,2cyclictest2710-21ls10:40:002
1109699220,2cyclictest25817-21latency_hist11:20:012
1109699220,2cyclictest22138-21sort10:15:162
1109699220,2cyclictest22138-21sort10:15:162
1109699220,2cyclictest20634-21sed08:20:182
1109699220,2cyclictest18925-21cut12:05:122
1109699220,2cyclictest1653-21find07:50:012
1109699220,2cyclictest10504-21latency_hist11:50:012
1109699220,1cyclictest0-21swapper/210:30:182
1109699220,17cyclictest4684-21latency_hist08:50:002
1109699220,16cyclictest4017-21perl12:35:142
1109699220,16cyclictest11308-21idleruntime11:50:152
1109599222,15cyclictest21645-21chrt08:20:541
11095992214,7cyclictest32630-21cat10:35:151
11095992214,7cyclictest14425-21netstat09:05:171
1109599221,1cyclictest0-21swapper/112:35:171
1109599220,3cyclictest8162-21expr11:45:131
1109599220,2cyclictest25658-21cut12:15:171
1109599220,2cyclictest16027-21ls10:05:131
1109599220,21cyclictest29999-21expr10:30:131
1109599220,21cyclictest13422-21python308:10:001
1109599220,21cyclictest0-21swapper/112:00:131
1109599220,21cyclictest0-21swapper/112:00:121
1109599220,20cyclictest3987-21H222:10:211
1109599220,1cyclictest0-21swapper/110:50:171
1109599220,1cyclictest0-21swapper/109:40:131
1109599220,16cyclictest4921-21fschecks_time09:45:141
1109599220,16cyclictest31109-21perf08:40:011
1109599220,16cyclictest31002-21cut07:45:011
11096992114,6cyclictest7366-21pzem_power10:45:202
11096992114,6cyclictest0-21swapper/208:40:172
1109699211,1cyclictest0-21swapper/208:25:152
1109699210,2cyclictest9962-21chrt08:59:072
1109699210,2cyclictest3987-21H222:10:212
1109699210,2cyclictest31024-21grep09:35:192
1109699210,2cyclictest23071-21cstates07:30:142
1109699210,2cyclictest20881-21cat11:10:142
1109699210,2cyclictest12493-21grep07:10:152
1109699210,20cyclictest3991-21H222:10:212
1109699210,1cyclictest9407-21expr10:50:132
1109699210,1cyclictest19590-21idleruntime09:15:132
1109699210,1cyclictest0-21swapper/212:14:482
1109699210,1cyclictest0-21swapper/212:05:002
1109699210,1cyclictest0-21swapper/212:05:002
1109699210,1cyclictest0-21swapper/211:40:512
1109699210,1cyclictest0-21swapper/210:10:122
1109699210,1cyclictest0-21swapper/208:04:412
1109699210,16cyclictest26011-21apt11:20:102
1109699210,16cyclictest18310-21cut10:10:002
1109699210,16cyclictest0-21swapper/209:29:162
1109699210,16cyclictest0-21swapper/209:29:152
1109699210,15cyclictest17608-21cpu11:05:132
1109699210,15cyclictest15969-21latency_hist12:00:002
1109599212,1cyclictest11980-21timerwakeupswit09:55:211
11095992119,1cyclictest21-21ksoftirqd/109:52:011
11095992114,6cyclictest7581-21sed11:45:001
11095992114,6cyclictest4099-21H222:10:211
11095992113,7cyclictest3985-21H222:10:211
11095992113,7cyclictest3985-21H222:10:211
1109599211,19cyclictest0-21swapper/111:38:571
1109599210,2cyclictest5898-21expr07:55:131
1109599210,2cyclictest28488-21cut08:35:011
1109599210,20cyclictest4099-21H222:10:211
1109599210,20cyclictest3989-21H222:10:211
1109599210,20cyclictest27441-21expr09:30:171
1109599210,20cyclictest25158-21grep10:20:181
1109599210,20cyclictest23237-21apache_processe11:15:101
1109599210,20cyclictest21857-21timerwakeupswit07:25:221
1109599210,20cyclictest13682-21/usr/sbin/munin10:00:151
1109599210,20cyclictest0-21swapper/109:19:131
1109599210,1cyclictest10889-21apt-get07:10:011
1109599210,1cyclictest0-21swapper/108:45:231
1109599210,16cyclictest17262-21needreboot09:10:171
1109599210,16cyclictest1367-21apt-config07:50:011
1109599210,15cyclictest29071-21awk12:20:211
1109599210,15cyclictest0-21swapper/112:10:011
1109599210,15cyclictest0-21swapper/111:10:141
1109599210,15cyclictest0-21swapper/110:40:181
1109699200,2cyclictest5415-21munin-run10:45:002
1109699200,2cyclictest4035-21H222:10:212
1109699200,1cyclictest5404-21apt-get07:55:122
1109699200,1cyclictest0-21swapper/211:25:122
1109699200,1cyclictest0-21swapper/210:00:162
1109699200,1cyclictest0-21swapper/209:30:272
1109699200,1cyclictest0-21swapper/209:05:212
1109699200,1cyclictest0-21swapper/208:10:142
1109699200,1cyclictest0-21swapper/207:25:212
1109699200,1cyclictest0-21swapper/207:20:142
1109699200,15cyclictest22781-21grep09:20:182
1109699200,14cyclictest0-21swapper/208:35:132
1109699200,14cyclictest0-21swapper/208:30:172
1109699200,0cyclictest0-21swapper/209:55:162
11095992014,5cyclictest3985-21H222:10:211
11095992014,5cyclictest3983-21H222:10:211
11095992014,5cyclictest3983-21H222:10:211
11095992014,5cyclictest0-21swapper/111:30:121
11095992014,5cyclictest0-21swapper/108:25:151
1109599200,1cyclictest0-21swapper/112:25:141
1109599200,1cyclictest0-21swapper/110:25:191
1109599200,1cyclictest0-21swapper/108:58:161
1109599200,1cyclictest0-21swapper/108:10:151
1109599200,1cyclictest0-21swapper/107:15:371
1109599200,19cyclictest3817-21swap07:50:211
1109599200,19cyclictest0-21swapper/111:00:171
1109599200,19cyclictest0-21swapper/109:35:141
1109599200,19cyclictest0-21swapper/108:52:401
1109599200,15cyclictest18537-21wc08:15:211
1109599200,15cyclictest0-21swapper/111:55:181
1109499206,13cyclictest0-21swapper/010:15:590
1109499206,13cyclictest0-21swapper/010:15:590
1109499203,16cyclictest0-21swapper/008:55:010
1109699190,18cyclictest0-21swapper/211:35:162
1109699190,18cyclictest0-21swapper/207:15:212
1109599190,18cyclictest0-21swapper/111:25:131
1109599190,18cyclictest0-21swapper/111:05:141
1109599190,18cyclictest0-21swapper/109:00:491
1109599190,18cyclictest0-21swapper/107:23:341
1109599190,14cyclictest0-21swapper/111:50:111
11094991917,1cyclictest31750irq/132-nvme0q107:30:010
1109499190,3cyclictest3991-21H222:10:210
1109499190,2cyclictest4035-21H222:10:210
1109499190,2cyclictest3987-21H222:10:210
1109499190,2cyclictest3979-21H222:10:210
1109499190,2cyclictest3976-21H222:10:210
1109499190,18cyclictest0-21swapper/011:00:000
1109499190,16cyclictest3983-21H222:10:210
1109499190,16cyclictest3983-21H222:10:210
11095991812,5cyclictest0-21swapper/109:21:241
1109599180,17cyclictest0-21swapper/111:20:481
1109599180,17cyclictest0-21swapper/108:03:411
1109599180,0cyclictest0-21swapper/112:35:001
1109499182,15cyclictest9-21ksoftirqd/011:20:570
1109499182,15cyclictest20094-21sed11:10:000
11094991816,1cyclictest9-21ksoftirqd/011:03:520
11094991814,3cyclictest3985-21H222:10:210
11094991814,3cyclictest3983-21H222:10:210
11094991814,2cyclictest4099-21H222:10:210
1109499181,2cyclictest3983-21H222:10:210
1109499181,2cyclictest3983-21H222:10:210
1109499181,16cyclictest989-21gmain12:10:000
1109499180,3cyclictest3696-21plymouth11:35:210
1109499180,2cyclictest4099-21H222:10:210
1109499180,17cyclictest3989-21H222:10:210
1109499180,17cyclictest3979-21H222:10:210
1109499180,17cyclictest3976-21H222:10:210
1109499180,17cyclictest29887-21nfsd408:35:170
1109499180,16cyclictest4035-21H222:10:210
1109499180,15cyclictest4099-21H222:10:210
1109499180,15cyclictest3989-21H222:10:210
1109499180,15cyclictest3985-21H222:10:210
11094991716,1cyclictest0-21swapper/008:46:430
11094991715,1cyclictest0-21swapper/009:40:020
11094991714,3cyclictest0-21swapper/012:37:230
11094991714,2cyclictest5084-21chrt10:40:450
11094991714,2cyclictest4099-21H222:10:210
11094991714,2cyclictest31137-21munin-run11:30:000
11094991714,2cyclictest22061-21python308:25:010
11094991713,3cyclictest3989-21H222:10:210
11094991713,3cyclictest3979-21H222:10:210
1109499171,15cyclictest30665-21cat12:25:140
1109499171,15cyclictest0-21swapper/010:30:130
1109499170,2cyclictest4035-21H222:10:210
1109499170,2cyclictest3991-21H222:10:210
1109499170,2cyclictest3983-21H222:10:210
1109499170,2cyclictest1264-21chrt08:42:160
1109499170,2cyclictest10167-21awk10:50:180
1109499170,1cyclictest3989-21H222:10:210
1109499170,1cyclictest3985-21H222:10:210
1109499170,16cyclictest4035-21H222:10:210
1109499170,16cyclictest3983-21H222:10:210
1109499170,16cyclictest3979-21H222:10:210
1109499170,16cyclictest28535-21expr07:40:130
1109499170,16cyclictest1829-21systemd-journal08:03:360
1109499170,16cyclictest17387-21awk12:00:190
1109499170,16cyclictest17387-21awk12:00:180
1109499170,16cyclictest13556-21cstates11:55:130
1109499170,16cyclictest13488-21expr09:05:130
1109499170,16cyclictest0-21swapper/012:10:090
1109499170,16cyclictest0-21swapper/011:32:040
1109499170,15cyclictest3987-21H222:10:210
1109499170,15cyclictest3976-21H222:10:210
11094991614,1cyclictest0-21swapper/007:15:130
11094991613,2cyclictest26727-21apache_volume10:25:110
11094991612,2cyclictest3987-21H222:10:210
1109499160,1cyclictest0-21swapper/010:45:150
1109499160,15cyclictest16175-21df10:05:140
1109499160,15cyclictest0-21swapper/010:10:130
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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