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2024-06-20 - 05:03
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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 792 highest latencies:
System rack3slot6.osadl.org (updated Thu Jun 20, 2024 00:45:02)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
271921220,4chrt2718-21sort21:30:240
2793621200,4chrt27934-21latency21:10:290
1181221090,4chrt11810-21ls20:25:400
2114221070,4chrt21143-21cat23:50:020
150632950,4chrt15064-21unixbench_singl23:30:410
89202780,5chrt8919-21munin-run20:20:010
55572760,5chrt5556-21cut23:05:270
208472750,4chrt20850-21cut22:20:280
69702740,4chrt6971-21grep23:10:170
1491726717,19sleep00-21swapper/019:08:150
15291996334,18cyclictest28825-21apt-get19:45:140
15291996131,20cyclictest26994-21apt-get19:40:150
15291995930,19cyclictest1347-21apt-get22:55:130
15291995929,20cyclictest28799-21apt-get00:10:120
1529199587,42cyclictest18097-21apt-get20:45:140
15291995729,19cyclictest5340-21apt-get00:35:130
15291995729,19cyclictest13012-21apt-get22:00:100
15291995727,20cyclictest29901-21apt-get22:45:130
15291995628,19cyclictest9066-21apt-get20:20:100
15291995627,19cyclictest25162-21apt-get00:00:100
15291995627,19cyclictest19455-21apt-get19:20:140
1529199557,40cyclictest23321-21apt-get23:55:140
15291995529,17cyclictest5437-21apt-get20:10:110
15291995528,18cyclictest29217-21apt-get21:15:120
15291995527,19cyclictest1758-21apt-get00:25:150
15291995425,19cyclictest21524-21apt-get23:50:210
15291995332,11cyclictest21544-21apt-get19:25:150
15291995326,23cyclictest4947-21snmpd19:56:300
15291995325,19cyclictest5838-21apt-get21:40:140
15291995226,17cyclictest22352-21apt-get22:25:230
15291995131,11cyclictest17637-21apt-get19:15:110
15291995123,19cyclictest19882-21apt-get20:50:120
1529199507,20cyclictest26244-21apt-get22:35:160
15291995031,10cyclictest25127-21apt-get19:35:110
15291995030,11cyclictest14801-21apt-get22:05:110
15291995030,10cyclictest12189-21apt-get23:25:120
15291995029,11cyclictest17642-21apt-get23:40:110
15291995017,30cyclictest0-21swapper/021:03:030
15291994934,10cyclictest2228-21/usr/sbin/munin20:00:240
15291994930,11cyclictest7626-21apt-get21:45:120
15291994929,11cyclictest21979-21apt-get20:55:140
15291994929,10cyclictest354-21apt-get21:25:120
1529199486,20cyclictest14440-21apt-get20:35:140
15291994833,11cyclictest10107-21ntp_states21:50:290
15291994828,11cyclictest30610-21apt-get19:50:130
15291994828,11cyclictest15365-21apt-get19:10:120
15291994828,10cyclictest3973-21apt-get21:35:130
1529199482,40cyclictest473-21chrt22:51:400
1529199476,36cyclictest11160-21ps23:20:360
1529199475,12cyclictest3861-21ntp_states23:00:310
15291994729,10cyclictest23337-21apt-get19:30:120
15291994728,10cyclictest31032-21apt-get21:20:110
15291994728,10cyclictest30584-21apt-get00:15:110
15291994728,10cyclictest26955-21apt-get00:05:130
1529199467,30cyclictest28102-21apt-get22:40:120
1529199467,16cyclictest32398-21apt-get00:20:110
15291994628,10cyclictest25592-21apt-get21:05:180
15291994626,11cyclictest12648-21apt-get20:30:130
15291994620,23cyclictest0-21swapper/023:35:310
15291994617,20cyclictest8586-21apt-get23:15:140
1529199457,28cyclictest16647-21apt-get22:10:100
15291994528,9cyclictest24139-21apt-get22:30:110
15291994527,11cyclictest11206-21apt-get21:55:140
15291994526,10cyclictest16305-21apt-get20:40:140
15291994525,11cyclictest18440-21apt-get22:15:130
1529199448,15cyclictest3539-21apt-get00:30:090
15291994114,18cyclictest3939-21cat20:05:230
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*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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