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2025-06-21 - 22:22
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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 rackbslot1.osadl.org (updated Fri Jun 20, 2025 12:44:37)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
40097612216187,19sleep20-21swapper/207:08:552
40097072216187,19sleep30-21swapper/307:08:113
40096602201173,18sleep00-21swapper/007:07:360
40097962198170,18sleep10-21swapper/107:09:211
401005099900,55cyclictest34501-21/usr/share/muni10:45:020
4010050996461,2cyclictest131418-21kworker/u8:1+flush-179:012:30:010
4010050996361,2cyclictest4151994-21kworker/u8:1+flush-179:009:30:350
4010050995956,2cyclictest4162561-21kworker/u8:0+flush-179:009:45:330
4010056995855,2cyclictest4023008-21kworker/u8:1+events_unbound09:17:032
401005699577,50cyclictest4009929-21kworker/u8:4+efi_rts_wq07:13:302
4010050995754,2cyclictest3968800-21kworker/u8:0+events_unbound07:25:110
4010056995652,3cyclictest19396-21kworker/u8:1+events_unbound11:50:202
4010061995550,3cyclictest23714-21/usr/share/muni10:35:113
4010056995552,2cyclictest99514-21kworker/u8:3+flush-179:012:25:352
4010056995551,3cyclictest4151994-21kworker/u8:1+flush-179:009:35:182
4010050995552,2cyclictest4109160-21kworker/u8:2+flush-179:009:40:200
4010050995552,2cyclictest4109160-21kworker/u8:2+flush-179:009:40:200
4010056995451,2cyclictest4162561-21kworker/u8:0+flush-179:010:15:112
4010056995450,3cyclictest4061294-21kworker/u8:0+flush-179:008:15:302
4010056995439,13cyclictest4167309-21chrome09:45:012
4010056995439,13cyclictest4167309-21chrome09:45:012
4010056995350,2cyclictest4023008-21kworker/u8:1+events_unbound08:40:202
4010050995350,2cyclictest4023008-21kworker/u8:1+flush-179:009:15:190
4010056995248,3cyclictest4073454-21kworker/u8:4+flush-179:008:20:182
4010050995248,3cyclictest4081293-21kworker/u8:2+flush-179:008:30:150
4010050995148,2cyclictest99514-21kworker/u8:3+flush-179:011:50:340
4010050995147,4cyclictest4156920-21kworker/u8:4+flush-179:009:55:310
4010050995147,3cyclictest4061294-21kworker/u8:0+flush-179:008:20:180
4010050995147,3cyclictest4030427-21kworker/u8:2+flush-179:007:40:340
4010050995146,4cyclictest4096173-21kworker/u8:0+events_unbound08:40:010
4010056995044,5cyclictest4109160-21kworker/u8:2+flush-179:010:05:332
4010050995046,2cyclictest4023008-21kworker/u8:1+flush-179:008:50:190
4010061994941,6cyclictest1515559-21ThreadPoolForeg10:30:333
4010056994945,3cyclictest4162561-21kworker/u8:0+flush-179:010:45:282
4010056994945,3cyclictest4101774-21kworker/u8:3+flush-179:009:00:152
4010056994945,3cyclictest4023008-21kworker/u8:1+flush-179:009:13:312
4010050994946,2cyclictest64575-21kworker/u8:2+flush-179:011:20:200
4010056994845,2cyclictest91938-21kworker/u8:2+events_unbound11:45:052
4010056994845,2cyclictest4023008-21kworker/u8:1+flush-179:007:55:122
4010056994845,2cyclictest4023008-21kworker/u8:1+flush-179:007:20:332
4010051994844,3cyclictest4152332-21/usr/share/muni09:30:011
4010051994842,4cyclictest4091593-21/usr/share/muni08:30:001
4010050994845,2cyclictest4009929-21kworker/u8:4+flush-179:007:15:050
4010050994845,2cyclictest3994277-21kworker/u8:3+flush-179:007:35:200
4010050994845,2cyclictest19396-21kworker/u8:1+events_unbound11:45:120
4010050994844,3cyclictest4023008-21kworker/u8:1+flush-179:008:55:190
4010050994744,2cyclictest44224-21kworker/u8:3+flush-179:010:55:320
4010056994644,2cyclictest4023008-21kworker/u8:1+flush-179:008:05:112
4010056994643,2cyclictest4162561-21kworker/u8:0+flush-179:010:30:312
4010056994643,2cyclictest4009929-21kworker/u8:4+events_unbound07:15:332
4010056994642,3cyclictest4023008-21kworker/u8:1+events_unbound08:45:192
4010056994642,2cyclictest4046361-21/usr/share/muni07:45:022
4010051994641,3cyclictest4086347-21latency_hist08:25:011
4010050994643,2cyclictest4162561-21kworker/u8:0+flush-179:010:05:100
4010050994642,3cyclictest99514-21kworker/u8:3+flush-179:012:00:110
4010050994642,3cyclictest4162561-21kworker/u8:0+events_unbound11:35:190
4010050994642,3cyclictest4156920-21kworker/u8:4+events_unbound09:35:330
401005099460,44cyclictest1515603-21chrome08:40:210
4010061994540,3cyclictest4106666-21chrome08:45:013
4010061994539,4cyclictest64769-21/usr/share/muni11:15:053
4010061994538,5cyclictest4051473-21/usr/share/muni07:50:103
4010056994544,1cyclictest4023008-21kworker/u8:1+events_unbound07:35:332
4010056994542,2cyclictest99514-21kworker/u8:3+flush-179:012:00:112
4010056994542,2cyclictest4051578-21/usr/share/muni07:50:042
4010050994541,3cyclictest4106722-21/usr/share/muni08:45:180
4010050994541,3cyclictest4045776-21kworker/u8:3+flush-179:008:00:230
4010050994539,4cyclictest4109160-21kworker/u8:2+flush-179:010:00:100
401006199441,43cyclictest4009929-21kworker/u8:4+efi_rts_wq07:13:283
4010056994441,2cyclictest4101774-21kworker/u8:3+flush-179:009:25:062
4010056994441,2cyclictest4101774-21kworker/u8:3+flush-179:009:25:052
4010056994441,2cyclictest3968800-21kworker/u8:0+events_unbound07:40:102
4010051994439,4cyclictest1515610-21ThreadPoolForeg10:35:321
4010051994438,5cyclictest79917-21/usr/share/muni11:30:041
4010051994431,2cyclictest1515606-21ThreadPoolForeg09:45:011
4010051994431,2cyclictest1515606-21ThreadPoolForeg09:45:011
4010050994441,2cyclictest4023008-21kworker/u8:1+flush-179:008:15:090
4010061994334,8cyclictest823100-1kworker/3:2H+kblockd11:47:283
4010056994340,3cyclictest44224-21kworker/u8:3+flush-179:011:00:172
4010056994339,3cyclictest126019-21kworker/u8:0+events_unbound12:20:022
4010051994340,2cyclictest12813-21kworker/u8:3+flush-179:010:25:011
4010051994339,3cyclictest19396-21kworker/u8:1+flush-179:011:10:201
4010051994337,4cyclictest56113-21apt-get11:05:131
4010050994339,3cyclictest4109160-21kworker/u8:2+flush-179:010:35:190
4010050994339,2cyclictest4109160-21kworker/u8:2+flush-179:009:50:210
4010050994337,4cyclictest4046331-21chrome07:45:010
4010061994232,9cyclictest823100-1kworker/3:2H+kblockd07:29:033
4010056994239,2cyclictest64575-21kworker/u8:2+flush-179:011:25:282
4010056994239,2cyclictest4023008-21kworker/u8:1+events_unbound07:30:092
4010056994238,3cyclictest4101774-21kworker/u8:3+events_unbound09:05:282
4010056994230,11cyclictest4040237-21kworker/2:2+pm11:08:412
4010050994239,2cyclictest4162561-21kworker/u8:0+flush-179:010:30:100
4010050994238,3cyclictest4162561-21kworker/u8:0+events_unbound10:15:560
4010050994238,3cyclictest4101774-21kworker/u8:3+flush-179:009:10:040
4010061994137,3cyclictest4162561-21kworker/u8:0+events_unbound10:45:023
4010061994137,3cyclictest4022553-21apt-get07:20:133
4010061994136,4cyclictest4151382-31munin-html09:25:343
4010061994136,4cyclictest4151382-31munin-html09:25:343
4010056994135,5cyclictest4111828-21/usr/share/muni08:50:102
4010050994138,2cyclictest19396-21kworker/u8:1+events_unbound11:10:130
4010050994138,2cyclictest126019-21kworker/u8:0+events_unbound12:20:200
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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