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2024-06-17 - 21:52
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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 rackbslot7.osadl.org (updated Mon Jun 17, 2024 12:44:13)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
5831991278,96cyclictest187962sleep010:19:410
364421120,4chrt3643-21ssh10:53:421
5831991006,76cyclictest0-21swapper/011:44:290
5831999818,50cyclictest23515-21latency_hist10:29:110
583199964,82cyclictest19514-21apt-get11:24:180
583199942,82cyclictest29667-21cut08:19:350
583199934,61cyclictest0-21swapper/012:37:570
583199932,82cyclictest0-21swapper/009:19:230
583199932,63cyclictest14412-21rm10:10:020
583199902,79cyclictest27195-21cstates09:34:270
54592905,14sleep20-21swapper/207:06:192
54592905,14sleep20-21swapper/207:06:192
5840998970,13cyclictest9060-21munin-plugin-st11:04:091
583199892,57cyclictest6139-21head08:44:520
585499884,51cyclictest30092-21apt-get11:44:223
5831998827,54cyclictest24969-21ssh09:29:480
583199873,73cyclictest22202-21apt-get11:29:220
583199872,77cyclictest17861-21find12:19:450
583199872,76cyclictest92892sleep011:04:120
5854998561,18cyclictest26679-21fschecks_time10:34:343
5840998561,16cyclictest16669-21munin-plugin-st11:19:091
583199852,52cyclictest28116-21mailstats11:39:450
585499842,21cyclictest22469-21fschecks_time11:29:323
583199844,68cyclictest5838-21sort07:09:130
583199844,68cyclictest5838-21sort07:09:130
583199843,74cyclictest27096-21idleruntime-cro11:39:100
583199843,73cyclictest15666-21/usr/sbin/munin09:14:120
583199843,51cyclictest31276-21taskset09:40:440
583199842,72cyclictest21598-21apt-get09:24:220
5831998422,54cyclictest0-21swapper/007:39:320
583199833,72cyclictest714-21fschecks_time11:49:330
583199833,70cyclictest15967-21apt-get09:14:260
583199832,74cyclictest20210-21/usr/sbin/munin12:24:420
583199832,73cyclictest1272-21sh10:49:100
583199832,55cyclictest5762-21rm10:56:510
583199832,55cyclictest5762-21rm10:56:510
583199823,71cyclictest27830-21apt-get08:14:420
583199823,67cyclictest6804-21apt-get08:49:240
583199823,67cyclictest6804-21apt-get08:49:240
5831998230,45cyclictest13034-21diskmemload12:14:220
583199822,57cyclictest13201-21latency_hist09:09:120
583199822,54cyclictest13034-21diskmemload10:04:030
585499813,59cyclictest25085-21apt-get12:34:373
585499813,19cyclictest4184-21unixbench_multi11:55:143
5840998155,17cyclictest8459-21latency_hist12:04:121
583199813,71cyclictest28698-21latency_hist10:39:120
583199812,70cyclictest12965-21apt-get07:29:220
5854998054,15cyclictest27650-21apt-config08:14:133
585499804,12cyclictest9063-21modprobe11:04:093
585499804,12cyclictest0-21swapper/310:44:363
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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