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2024-07-21 - 05:38
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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 376 highest latencies:
System rack3slot6.osadl.org (updated Sun Jul 21, 2024 00:45:01)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
271692980,5chrt27170-21timerandwakeup20:10:300
245142940,4chrt24512-21timerwakeupswit00:30:320
164672910,4chrt16468-21aten2.4_r3power00:10:140
91982860,4chrt9195-21grep20:50:320
362528316,27sleep00-21swapper/019:09:230
41532790,5chrt4151-21open_inodes23:35:300
253982780,4sleep025397-21sed21:35:290
201512780,5chrt20149-21users19:50:350
287782760,4chrt28779-21idleruntime21:45:320
205792720,4sleep020578-21wc00:20:230
380799616,14cyclictest8874-21apt-get22:20:130
221292533,8sleep022138-21diskstats00:25:210
380799506,11cyclictest22661-21apt-get20:00:120
380799503,42cyclictest4880-21gpgv22:10:020
3807995034,10cyclictest8863-21apt-get23:50:140
380799503,36cyclictest25388-21apt-get00:35:150
3807995033,11cyclictest22272-21python322:55:310
145352502,7sleep014652-21awk21:05:330
380799493,39cyclictest12450-21apt-get22:30:110
3807994930,14cyclictest8351-21runrttasks23:47:020
3807994919,21cyclictest19415-21cat21:20:200
310262492,42sleep031092-21grep23:20:270
380799484,35cyclictest31964-21apt-get21:55:130
3807994832,10cyclictest18210-21apt-get00:15:120
380799482,17cyclictest17305-21diskstats19:45:190
380799477,30cyclictest30176-21apt-get21:50:100
380799476,19cyclictest1623-21apt-get23:30:090
380799474,35cyclictest13317-21python300:00:320
380799474,10cyclictest26886-21apt-get23:10:120
3807994735,7cyclictest14916-21ntpq22:35:250
380799473,39cyclictest5216-21runrttasks19:12:270
380799473,38cyclictest25869-21python323:05:300
3807994730,11cyclictest1021-21/usr/sbin/munin20:30:200
3807994726,13cyclictest28071-21/usr/sbin/munin20:15:350
380799472,39cyclictest4685-21apt-get20:40:130
380799472,39cyclictest1332-21apt-get22:00:110
380799472,16cyclictest15845-21seq00:06:530
3807994718,20cyclictest6495-21cat19:15:190
3807994627,14cyclictest14432-21runrttasks19:35:350
3807994619,19cyclictest10093-21cat19:25:190
380799458,7cyclictest171rcuc/023:56:130
380799457,34cyclictest507-21runrttasks19:43:530
380799456,16cyclictest20869-21apt-get21:25:140
380799454,9cyclictest3121-21df20:35:150
3807994532,8cyclictest7167-21ntp_states20:45:290
380799453,10cyclictest15934-21irqstats21:10:250
3807994530,9cyclictest13169-21sshd21:02:220
3807994528,11cyclictest17262-21/usr/sbin/munin21:15:180
3807994527,11cyclictest24444-21/usr/sbin/munin20:05:350
380799452,38cyclictest29884-21apt-get20:20:120
3807994518,18cyclictest18231-21cat22:45:240
380799447,27cyclictest16096-21apt-get22:40:090
380799447,15cyclictest28677-21apt-get23:15:100
380799446,16cyclictest19672-21apt-get22:50:120
380799443,36cyclictest7965-21/usr/sbin/munin19:20:200
380799443,36cyclictest22972-21df_inode21:30:180
380799443,35cyclictest10661-21apt-get22:25:100
380799443,13cyclictest704-21switchtime23:25:330
3807994428,11cyclictest10044-21apt-get20:55:130
380799437,15cyclictest5286-21apt-get23:40:120
380799436,16cyclictest31676-21apt-get20:25:130
3807994329,9cyclictest5275-21/usr/sbin/munin22:10:210
380799432,36cyclictest507-21runrttasks23:00:140
380799432,14cyclictest277042sleep021:43:070
3807994130,7cyclictest11545-21/usr/sbin/munin19:30:210
3807994125,10cyclictest21552-21ntp_states19:55:280
380799405,29cyclictest7063-21/usr/sbin/munin22:15:290
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*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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