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2023-05-28 - 01:39

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 Sat May 27, 2023 12:44:11)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
170573914390,1EcMasterDemoSyn0-21swapper/507:35:245
19157391110,0EcMasterDemoSyn19164-21grep08:41:180
2419139810,4EcMasterDemoSyn272899cyclictest08:51:270
2419139810,4EcMasterDemoSyn272899cyclictest08:51:270
171812740,1sleep40-21swapper/411:25:304
63352720,0sleep50-21swapper/509:15:015
267172710,1sleep20-21swapper/210:19:132
238572650,1sleep30-21swapper/307:50:003
299239640,5EcMasterDemoSyn272899cyclictest07:10:020
36682620,0sleep03669-21sh12:30:040
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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