2048 Latency Processing Virtualization 
Brendan Gregg
AUGUST 18, 2019
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.
SQL Server According to Bob
JANUARY 11, 2020
DBCC Page Auditing DBCC page auditing is the process of executing common DBCC consistency checks as pages are read from disk. The 832 message indicates a serious process stability problem, such as a scribbler, that could lead to data corruption and loss.
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