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2024-11-22 - 09:55
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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 50 highest latencies:
System rackaslot8.osadl.org (updated Fri Nov 22, 2024 00:44:24)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
106542326294,20sleep20-21swapper/219:09:502
105212274240,23sleep10-21swapper/119:08:041
105882270215,42sleep30-21swapper/319:08:593
106572258224,22sleep00-21swapper/019:09:520
260512600,0sleep30-21swapper/323:03:353
230382180,0sleep00-21swapper/023:00:210
158812180,0sleep30-21swapper/323:20:213
168542170,0sleep10-21swapper/122:30:221
105342170,0sleep30-21swapper/322:50:303
1078299153,9cyclictest0-21swapper/221:37:532
1078299152,10cyclictest17041-21ssh22:07:072
1078299132,8cyclictest10977-21ssh23:41:462
1078299131,8cyclictest17164-21ls20:30:202
1078299130,8cyclictest25083-21grep20:50:142
1078299130,8cyclictest14350-21ssh23:20:072
1078299130,8cyclictest10814-21ssh21:16:102
1078299130,10cyclictest18183-21ssh22:56:582
1078299130,10cyclictest17983-21ssh22:31:012
1078299130,10cyclictest17046-21ssh21:44:482
1078299130,10cyclictest10828-21ssh00:36:592
1078299122,8cyclictest28223-21sshd00:22:542
1078299122,8cyclictest28223-21sshd00:22:542
1078299120,9cyclictest6467-21chrt20:08:352
1078299120,9cyclictest4149-21sh22:20:442
1078299120,9cyclictest32228-21chrt19:53:502
1078299120,9cyclictest29520-21ssh22:15:402
1078299120,9cyclictest2681-21ssh22:45:112
1078299120,9cyclictest23214-21ssh23:00:312
1078299120,9cyclictest20823-21chrt19:29:272
1078299120,9cyclictest18116-21chrt19:22:232
1078299120,9cyclictest17679-21ssh21:21:042
1078299120,9cyclictest15423-21chrt20:29:052
1078299120,9cyclictest10592-21ssh22:50:342
1078299120,8cyclictest8857-21ssh22:25:052
1078299120,8cyclictest8857-21ssh22:25:052
1078299120,8cyclictest21680-21ssh00:16:572
1078299120,7cyclictest8834-21ssh00:06:272
1078299120,7cyclictest4495-21ssh23:11:402
1078299120,7cyclictest4027-21ssh23:36:212
1078299120,7cyclictest31770-21ssh00:00:022
1078299120,7cyclictest31485-21ssh23:32:542
1078299120,7cyclictest28188-21ssh23:56:182
1078299120,7cyclictest24138-21ssh23:53:472
1078299120,7cyclictest23625-21ssh21:49:242
1078299120,7cyclictest21531-21kernelversion23:25:152
1078299120,7cyclictest11238-21ssh23:16:532
1078299120,1cyclictest29435-21apt-get21:30:162
1078299110,7cyclictest8675-21chrt20:13:242
1078299110,7cyclictest31780-21grep21:05:142
1078299110,7cyclictest30731-21ssh23:06:462
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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