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2024-04-19 - 04:40
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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 rack1slot3.osadl.org (updated Fri Apr 19, 2024 00:43:44)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
100815499142,11cyclictest0-21swapper/322:40:133
100815499129,1cyclictest0-21swapper/300:25:123
100815499120,11cyclictest0-21swapper/300:15:013
1008154991111,0cyclictest0-21swapper/322:20:113
1008154991111,0cyclictest0-21swapper/321:20:013
1008154991110,1cyclictest0-21swapper/323:32:143
100815499110,11cyclictest0-21swapper/322:19:523
100815499110,0cyclictest0-21swapper/319:55:093
100815499110,0cyclictest0-21swapper/300:05:143
1008154991010,0cyclictest0-21swapper/323:45:173
1008154991010,0cyclictest0-21swapper/320:50:013
100815499100,10cyclictest0-21swapper/323:20:113
100815499100,10cyclictest0-21swapper/320:45:013
100815499100,10cyclictest0-21swapper/320:05:163
100815499100,10cyclictest0-21swapper/319:30:233
100815499100,0cyclictest0-21swapper/322:35:013
100815499100,0cyclictest0-21swapper/322:25:073
100815499100,0cyclictest0-21swapper/321:55:223
100815499100,0cyclictest0-21swapper/320:55:173
100815499100,0cyclictest0-21swapper/320:30:183
10081549999,0cyclictest0-21swapper/320:24:563
10081549999,0cyclictest0-21swapper/320:00:123
10081549999,0cyclictest0-21swapper/319:24:563
10081549990,9cyclictest0-21swapper/319:45:113
10081549990,8cyclictest0-21swapper/320:55:013
10081549990,0cyclictest0-21swapper/322:00:143
10081549988,0cyclictest0-21swapper/323:26:543
10081549988,0cyclictest0-21swapper/323:10:113
10081549988,0cyclictest0-21swapper/322:56:333
10081549988,0cyclictest0-21swapper/322:10:013
10081549988,0cyclictest0-21swapper/321:00:203
10081549988,0cyclictest0-21swapper/319:10:113
10081549987,1cyclictest1043096-21taskset20:38:163
10081549980,7cyclictest0-21swapper/323:15:143
13129870,3rtkit-daemon617-21gmain19:09:590
10081549977,0cyclictest0-21swapper/323:40:123
10081549977,0cyclictest0-21swapper/322:35:123
10081549977,0cyclictest0-21swapper/321:25:133
10081549977,0cyclictest0-21swapper/321:10:143
10081549977,0cyclictest0-21swapper/320:25:123
10081549977,0cyclictest0-21swapper/320:10:113
10081549976,1cyclictest0-21swapper/322:50:123
10081549970,0cyclictest0-21swapper/321:30:583
10081549970,0cyclictest0-21swapper/319:50:203
1007616272,3sleep20-21swapper/219:05:232
10081549966,0cyclictest0-21swapper/323:35:183
10081549966,0cyclictest0-21swapper/323:01:523
10081549966,0cyclictest0-21swapper/319:37:013
10081549964,2cyclictest1125954-21sleep23:55:013
10081549960,5cyclictest0-21swapper/321:35:123
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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