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2025-02-11 - 00:27
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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 20 highest latencies:
System rack5slot2.osadl.org (updated Mon Feb 10, 2025 12:44:40)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
8142197181,11sleep10-21swapper/107:07:431
9222182165,12sleep20-21swapper/207:09:092
9402181164,12sleep30-21swapper/307:09:223
8952178160,13sleep00-21swapper/007:08:480
30942450,0sleep00-21swapper/010:35:490
291572440,0sleep20-21swapper/211:40:242
121892420,0sleep00-21swapper/009:16:570
115999110,6cyclictest13438-21sensors_temp08:35:192
115999100,6cyclictest8042-21df09:15:132
115999100,6cyclictest608-21sshd12:35:122
115999100,6cyclictest24331-21wc10:30:172
115999100,6cyclictest23267-21hddtemp_smartct11:55:152
115999100,6cyclictest10721-21ntp_states08:30:192
11599990,8cyclictest22823-21apt-get12:30:072
11599990,8cyclictest19596-21apt-get07:45:122
11599990,8cyclictest1793-21apt-get11:10:082
11599990,7cyclictest11269-21taskset12:06:072
11599990,6cyclictest554-21df_inode12:00:142
11599990,6cyclictest28411-21ps08:00:192
11599990,6cyclictest25198-21fschecks_time09:00:132
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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