2048 Hardware Latency Programming 
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. The probe is BEGIN , a special probe that runs at the beginning of the program (like awk). There's no filter.
SQL Server According to Bob
JANUARY 11, 2020
ReadFile WriteFile ReadFileScatter WriteFileGather GetOverlappedResult For extended details on the 823 error, see Error message 823 may indicate hardware problems or system problems ( [link] i crosoft.com/default.aspx?scid=kb scid=kb ; en-us;828339 ) on the Microsoft Web site.
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