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→What is Disk I/O analysis
What it is used for is to identify the imbalances between I/O operations and computational operations, as well as times the latency of the I/O requests.
As shown in the model there is multiple types of analysis.
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Analyze I/O data in System Cache mode
Command Line Arguments: -f out.txt -m c
In this mode, the application asynchronously writes records (16 Byte) to the output file, relying on system file cache.
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Analyze I/O data in System Cache and buffer mode
Command Line Arguments: -f out.txt -m b
Used to minimized the CPU usage and effectively use the I/O device. It combines the usage of system file cache and user buffer
== Resources ==