Remove 2048 Remove Latency Remove Network Remove Virtualization
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A thorough introduction to bpftrace

Brendan Gregg

For example, iostat(1), or a monitoring agent, may tell you your average disk latency, but not the distribution of this latency. For smaller environments, it can be of more use helping eliminate latency outliers. bpftrace uses BPF (Berkeley Packet Filter), an in-kernel execution engine that processes a virtual instruction set.

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SQL Server I/O Basics Chapter #2

SQL Server According to Bob

url=/library/en-us/fileio/fs/sparse_files.asp ) ​​ on the ​​ Microsoft Developer Network ​​ (MSDN). The caching of data pages and grouping of log records helps remove much, if not all, of the command latency associated with a write operation.

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