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A thorough introduction to bpftrace

Brendan Gregg

This example instrumented one of many thousands of available events. bpftrace uses BPF (Berkeley Packet Filter), an in-kernel execution engine that processes a virtual instruction set. There are often two modes, one for device cache hits and one for cache misses, which can be shown by this tool. SYNOPSIS biolatency.bt

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SQL Server I/O Basics Chapter #2

SQL Server According to Bob

Time of Last Access The time of last access is a caching ​​ algorithm ​​ that enables ​​ cache ​​ entries to be ordered by their ​​ access times.

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