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2023-02-07 - 19:08

x86 Intel Core i7-975 @3333 MHz, Linux 5.4.17-rt9 (Profile)

Latency plot of system in rack #5, slot #1
Data to construct the above plot have been generated using the RT test utility cyclictest.
Command line: cyclictest -l100000000 -m -n -a -t5 -p99 -i200 -h400 -q
Total number of samples: 100 million
Resolution of latency scale: normal
Duration: 5 hours, 33 minutes, lowest P state: performance
Characteristics of the 10 highest latencies:
System rack5slot1.osadl.org (updated Tue Feb 07, 2023 12:44:12)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
21073391230,0EcMasterDemoSyn21082-21wc11:04:061
8168391200,4EcMasterDemoSyn207699cyclictest08:21:511
70052810,1sleep50-21swapper/510:53:055
140372700,0sleep50-21swapper/510:34:325
132802660,1sleep09-21ksoftirqd/011:45:500
46742640,0sleep50-21swapper/511:40:185
109739640,0EcMasterDemoSyn1103-21runintdemo5min10:48:530
283552610,0sleep20-21swapper/208:00:212
197132610,0sleep00-21swapper/010:14:120
262042600,1sleep00-21swapper/009:54:440
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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