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2023-05-31 - 18:25

x86 Intel Core i3-8145UE @2200 MHz, Linux 5.10.27-rt36 (Profile)

Latency plot of system in rack #e, slot #5
Data to construct the above plot have been generated using the RT test utility cyclictest.
Unexpectedly long latencies may be caused by SMIs
Command line: cyclictest -l100000000 -m -Sp99 -i200 -h400 -q
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 rackeslot5.osadl.org (updated Wed May 31, 2023 12:44:21)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2229499320,2cyclictest16908-21systemd-journal08:50:013
22289993230,0cyclictest0-21swapper/209:46:542
2228999322,29cyclictest14193-21diskmemload12:19:242
2228999322,1cyclictest14193-21diskmemload10:29:392
2228999322,1cyclictest14193-21diskmemload10:20:262
2228999320,31cyclictest2581-21cron08:45:012
2228899323,0cyclictest0-21swapper/112:19:081
22289993130,1cyclictest0-21swapper/212:30:122
22289993129,2cyclictest0-21swapper/211:36:082
22289993129,1cyclictest0-21swapper/211:15:012
2228999311,30cyclictest0-21swapper/210:14:522
2228999311,1cyclictest0-21swapper/210:15:082
2228899310,30cyclictest26349-21sh11:35:011
22283993129,1cyclictest0-21swapper/010:00:200
22294993028,1cyclictest27230-21cron12:40:013
2229499300,29cyclictest16908-21systemd-journal10:00:013
2229499300,29cyclictest14193-21diskmemload12:17:303
2229499300,29cyclictest0-21swapper/309:45:203
2229499300,1cyclictest27946-21ntp_states11:35:283
2229499300,1cyclictest14193-21diskmemload11:50:593
2229499300,1cyclictest0-21swapper/310:50:203
22289993030,0cyclictest14193-21diskmemload11:58:022
22289993029,1cyclictest0-21swapper/212:22:522
22289993029,1cyclictest0-21swapper/212:10:262
22289993029,1cyclictest0-21swapper/210:48:002
22289993029,1cyclictest0-21swapper/209:37:432
22289993028,1cyclictest0-21swapper/211:25:202
2228999301,29cyclictest0-21swapper/210:55:392
2228999301,29cyclictest0-21swapper/210:38:112
2228999301,29cyclictest0-21swapper/210:07:192
2228999301,29cyclictest0-21swapper/209:14:522
2228999301,1cyclictest14193-21diskmemload09:56:442
2228999300,29cyclictest23113-21df_inode12:35:242
2228999300,29cyclictest14193-21diskmemload11:31:052
2228999300,1cyclictest14193-21diskmemload12:04:172
2228999300,1cyclictest14193-21diskmemload11:45:232
2228999300,1cyclictest14193-21diskmemload11:24:052
2228999300,1cyclictest14193-21diskmemload10:40:412
22288993028,1cyclictest0-21swapper/111:15:201
2228899300,29cyclictest19377-21apt-get12:00:151
2228899300,29cyclictest16989-21ssh11:25:191
2228899300,29cyclictest14193-21diskmemload12:11:071
2228899300,29cyclictest14193-21diskmemload09:35:331
2228899300,29cyclictest0-21swapper/110:08:441
2228899300,1cyclictest14193-21diskmemload09:49:591
2228399300,30cyclictest14193-21diskmemload11:50:560
2228399300,29cyclictest14193-21diskmemload11:10:420
2228399300,29cyclictest14193-21diskmemload09:25:450
2228399300,29cyclictest11887-21apt-get11:20:200
2228399300,29cyclictest0-21swapper/010:35:090
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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