2005 Code Hardware Latency 
SQL Server According to Bob
JANUARY 11, 2020
As the administrator of a SQL Server 2005 installation, you will find that visibility into the SQL Server I/O subsystem has been significantly increased.
Brendan Gregg
AUGUST 8, 2017
Nowadays, the source code to old operating systems can also be found online. Linux is also hard coding the 1, 5, and 15 minute constants. This state is used by code paths that want to avoid interruptions by signals, which includes tasks blocked on disk I/O and some locks. This, too, was a dead end. This, too, was a dead end.
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