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2024-05-25 - 06:22
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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 50 highest latencies:
System rackbslot1.osadl.org (updated Fri May 24, 2024 12:44:37)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
9354662210185,14sleep00-21swapper/007:09:270
9338892210186,14sleep20-21swapper/207:05:232
9352222209185,13sleep30-21swapper/307:07:173
9354382208166,13sleep10-21swapper/107:09:121
935692996461,2cyclictest1013406-21kworker/u8:2+flush-179:010:05:002
93569299595,53cyclictest1061984-21kworker/u8:0+efi_rts_wq11:01:472
935695995853,3cyclictest969326-21latency_hist08:20:003
935692995754,2cyclictest0-21swapper/212:05:012
935688995753,3cyclictest1013406-21kworker/u8:2+events_unbound09:40:031
935684995748,8cyclictest0-21swapper/010:05:010
935692995249,2cyclictest959404-21kworker/u8:0+flush-179:009:25:122
935695995143,4cyclictest1008885-31munin-html09:25:313
935688995046,3cyclictest959404-21kworker/u8:0+flush-179:009:50:041
935684994944,3cyclictest1022762-21/usr/share/muni09:45:180
935684994943,4cyclictest997563-21/usr/share/muni09:15:130
935695994843,2cyclictest962393-21ThreadPoolForeg08:05:013
935692994846,1cyclictest960026-21kworker/2:2+pm08:09:442
935692994844,3cyclictest1088633-21kworker/u8:0+flush-179:012:00:132
935692994844,3cyclictest1088633-21kworker/u8:0+flush-179:012:00:132
935688994845,2cyclictest959404-21kworker/u8:0+flush-179:008:25:121
935692994742,4cyclictest1013406-21kworker/u8:2+flush-179:010:00:012
935688994644,2cyclictest1043673-21kworker/u8:4+flush-179:010:45:401
935688994641,5cyclictest959404-21kworker/u8:0+events_unbound10:03:101
935695994538,5cyclictest305-21systemd-journal08:35:003
935688994543,2cyclictest1050215-21kworker/u8:2+events_unbound10:55:331
935688994542,2cyclictest992124-21kworker/u8:2+events_unbound09:10:191
935688994542,2cyclictest959404-21kworker/u8:0+events_unbound08:08:041
935688994528,16cyclictest950028-21kworker/u8:4+events_unbound08:01:591
935688994441,2cyclictest959404-21kworker/u8:0+events_unbound08:17:481
935688994440,3cyclictest1069173-21kworker/u8:1+events_unbound11:40:371
935692994341,1cyclictest966455-21kworker/2:1+pm08:22:292
935692994221,20cyclictest992124-21kworker/u8:2+flush-179:009:20:322
935688994239,2cyclictest1090848-21kworker/u8:2+flush-179:012:17:011
935692994138,2cyclictest966455-21kworker/2:1+pm08:17:332
935692994129,1cyclictest966455-21kworker/2:1+pm08:26:432
935688994138,2cyclictest1083491-21kworker/u8:2+events_unbound11:47:231
935695994037,2cyclictest2105450-1kworker/3:2H+kblockd07:30:263
935695994035,3cyclictest305-21systemd-journal08:41:253
935695994027,2cyclictest2105450-1kworker/3:2H+kblockd12:22:363
935692994038,1cyclictest1100371-21kworker/2:0+pm12:25:392
935692994037,2cyclictest987703-21kworker/2:1+pm09:05:132
935692994037,2cyclictest976159-21kworker/2:2+pm08:53:202
935692994037,2cyclictest932702-21kworker/u8:3+events_unbound07:37:592
935692994037,2cyclictest1102766-21kworker/2:2+pm12:32:092
935692994036,2cyclictest1009856-21kworker/2:0+pm09:51:422
935688994038,2cyclictest1013406-21kworker/u8:2+flush-179:009:35:001
935688994038,1cyclictest1038481-21kworker/1:0+pm10:22:581
935688994037,2cyclictest973854-21kworker/u8:3+flush-179:008:45:241
935688994037,2cyclictest1050215-21kworker/u8:2+flush-179:011:20:351
935688994037,2cyclictest1001356-21kworker/u8:3+events_unbound09:45:101
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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