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2024-04-26 - 20:00
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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
Compare latency of primary with shadow system
Characteristics of the 50 highest latencies:
System rackeslot6.osadl.org (updated Fri Apr 26, 2024 12:44:54)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
69491899122110,9cyclictest722474-21latency_hist08:40:011
6949159911599,5cyclictest701217-21kworker/u8:0+flush-179:008:15:010
6949159911599,5cyclictest701217-21kworker/u8:0+flush-179:008:15:010
69491599110102,6cyclictest698029-21kworker/u8:1+flush-179:007:25:010
694915991100,107cyclictest1-21systemd11:40:000
69491599109101,6cyclictest705479-21kworker/u8:1+events_unbound07:45:030
69491599108102,4cyclictest748162-21kworker/u8:1+flush-179:012:15:250
6949189910799,5cyclictest748202-21apt-get10:00:031
6949159910595,7cyclictest750047-21latency_hist10:05:010
6949189910494,7cyclictest702828-21latency_hist07:35:011
69491599104100,3cyclictest701217-21kworker/u8:0+flush-179:008:15:270
6949159910394,6cyclictest748162-21kworker/u8:1+flush-179:010:00:000
694915991030,100cyclictest1-21systemd12:35:000
6949189910294,6cyclictest748162-21kworker/u8:1+events_unbound10:05:181
6949189910294,5cyclictest739377-21kworker/u8:2+flush-179:010:30:241
6949189910194,4cyclictest768029-21kworker/u8:3+flush-179:011:00:261
6949189910094,5cyclictest736841-21kworker/u8:0+flush-179:009:25:001
6949189910090,7cyclictest701217-21kworker/u8:0+flush-179:007:40:001
694918999992,5cyclictest529-21rs:main1
694915999991,6cyclictest702863-21kworker/u8:2+flush-179:007:40:240
694918999893,4cyclictest748162-21kworker/u8:1+flush-179:011:40:011
694918999887,8cyclictest725655-21latency_hist08:50:011
694915999792,4cyclictest739377-21kworker/u8:2+events_unbound10:05:300
694915999688,6cyclictest720925-21kworker/u8:3+flush-179:009:50:010
694915999687,7cyclictest748162-21kworker/u8:1+events_unbound11:55:000
694915999687,7cyclictest748162-21kworker/u8:1+events_unbound11:54:590
694915999587,6cyclictest748162-21kworker/u8:1+events_unbound12:25:250
694915999285,5cyclictest710775-21threads07:55:290
694918999183,6cyclictest790572-21kworker/u8:3+flush-179:012:35:281
694918999182,5cyclictest701217-21kworker/u8:0+flush-179:008:05:261
694918999175,15cyclictest772870-21kworker/u8:2+flush-179:011:35:001
694915999185,4cyclictest769694-21kworker/u8:0+flush-179:011:15:010
694915999182,6cyclictest748162-21kworker/u8:1+flush-179:011:40:210
694915999179,5cyclictest797005-21kworker/u8:2+events_unbound12:40:010
694918999084,4cyclictest739377-21kworker/u8:2+flush-179:009:30:251
694915999083,6cyclictest691813-21kworker/u8:3+events_unbound07:20:010
694915999081,5cyclictest739377-21kworker/u8:2+flush-179:009:50:020
694918998983,4cyclictest701217-21kworker/u8:0+flush-179:008:15:231
694915998983,4cyclictest780837-21kworker/u8:0+flush-179:011:45:240
694915998981,6cyclictest788759-21apt-get12:05:000
694918998880,5cyclictest748162-21kworker/u8:1+flush-179:012:15:001
694918998879,6cyclictest720925-21kworker/u8:3+events_unbound09:15:261
694915998881,5cyclictest701217-21kworker/u8:0+events_unbound08:20:280
694915998878,8cyclictest732256-21/usr/sbin/munin09:10:250
694918998779,6cyclictest762439-21kworker/u8:0+flush-179:010:40:271
694918998779,6cyclictest720925-21kworker/u8:3+flush-179:009:40:201
694918998779,6cyclictest720925-21kworker/u8:3+flush-179:008:40:291
694918998778,7cyclictest768029-21kworker/u8:3+flush-179:011:00:001
694918998777,8cyclictest709449-21kworker/u8:3+flush-179:008:00:001
694918998775,9cyclictest708141-21apt-get07:50:101
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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