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2024-04-23 - 12:41
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Data to construct the above plot have been generated using the RT test utility cyclictest.

Total number of samples: 50 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 rack5slot7.osadl.org (updated Tue Apr 23, 2024 00:44:10)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
15080225390,11sleep08384-1kworker/u3:618:06:130
154189910625,47cyclictest0-21swapper23:11:360
154189910520,45cyclictest5218-21/usr/sbin/munin20:10:390
154189910416,64cyclictest3351-21apt-get21:44:190
154189910316,66cyclictest5531-21df_inode23:29:490
154189910215,24cyclictest23941-21ssh21:08:120
154189910214,66cyclictest12051-21irqstats22:10:070
154189910132,53cyclictest2594-21unixbench_singl21:40:410
154189910119,45cyclictest6541-21irqstats20:15:070
154189910117,24cyclictest24169-21users22:45:500
154189910116,46cyclictest26536-21apt-get22:54:230
154189910032,50cyclictest0-21swapper20:22:590
154189910026,33cyclictest2078-21ls23:19:030
154189910017,24cyclictest13529-21df22:14:410
154189910016,61cyclictest9399-21apt-get20:24:200
154189910014,64cyclictest23326-21ls18:54:030
154189910013,61cyclictest19917-21apt-get22:34:100
154189910013,27cyclictest27142-21ssh21:17:370
154189910012,71cyclictest0-21swapper18:54:040
154189910012,27cyclictest19801-21ssh20:55:160
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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