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2024-07-27 - 03:20
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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 rack5slot2.osadl.org (updated Sat Jul 27, 2024 00:44:42)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
202942207192,10sleep10-21swapper/119:09:121
201762185167,13sleep00-21swapper/019:07:380
200602184169,11sleep30-21swapper/319:06:093
201162117101,12sleep20-21swapper/219:06:522
172942430,0sleep20-21swapper/223:50:562
132822420,0sleep00-21swapper/021:55:440
140152400,0sleep00-21swapper/023:17:030
4522390,0sleep30-21swapper/322:21:513
5342100,1sleep1201rcuc/122:21:521
2051699100,2cyclictest0-21swapper/023:00:120
29836290,0sleep10-21swapper/121:31:591
205289993,5cyclictest14764-21diskstats21:05:143
205289991,1cyclictest21129-21awk00:10:003
205289990,2cyclictest0-21swapper/323:00:123
205289990,1cyclictest21169-21df_inode19:10:143
205289982,1cyclictest16151-21tail21:25:213
205289982,1cyclictest15998-21ssh23:18:193
205289981,1cyclictest0-21swapper/319:55:113
205289980,1cyclictest29381-21ssh23:57:183
205289980,1cyclictest28013-21basename22:20:013
205289980,1cyclictest26777-21ssh23:40:093
205289980,1cyclictest12431-21ssh21:40:013
205169982,1cyclictest20719-21ssh22:48:190
205169982,1cyclictest19316-21grep22:15:140
205169981,3cyclictest16145-21idleruntime-cro23:35:000
205169981,1cyclictest0-21swapper/019:55:110
205169981,1cyclictest0-21swapper/019:10:100
205169980,4cyclictest13782-21munin-run23:50:000
205169980,1cyclictest18523-21apt00:25:000
205289972,1cyclictest13317-21ssh21:55:463
205289971,1cyclictest4868-21expr23:45:113
205289971,1cyclictest3479-21grep00:00:223
205289971,1cyclictest32559-21if_eth120:35:153
205289971,1cyclictest31168-21cat00:15:003
205289971,1cyclictest30997-21snmpd20:34:003
205289971,1cyclictest30997-21snmpd20:18:243
205289971,1cyclictest25112-21ntpq19:15:163
205289971,1cyclictest12478-21cat21:00:173
205289971,0cyclictest0-21swapper/321:50:153
205289970,1cyclictest9943-21cut00:20:123
205289970,1cyclictest8939-21munin-run19:50:003
205289970,1cyclictest8386-21users22:25:303
205289970,1cyclictest7415-21hddtemp_smartct00:35:133
205289970,1cyclictest7181-21ls23:30:153
205289970,1cyclictest4436-21df22:40:123
205289970,1cyclictest3914-21munin-run20:45:003
205289970,1cyclictest32338-21hddtemp_smartct23:10:143
205289970,1cyclictest30043-21cut23:25:143
205289970,1cyclictest29578-21fw_packets19:25:153
205289970,1cyclictest29559-21diskstats00:30:113
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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