c# - Why do we need to set Min pool size in ConnectionString -


for sql connection pool, why need set min pool size? connections saved in connection pool , reused, why need keep live connections specified min pool size? thanks.

opening , maintaining connections expensive, if know need multiple connections (always) it's better specify minpoolsize because it's ensured these connections available.

also, msdn:

if minpoolsize either not specified in connection string or specified zero, connections in pool closed after period of inactivity. however, if specified minpoolsize greater zero, connection pool is not destroyed until appdomain unloaded , process ends. maintenance of inactive or empty pools involves minimal system overhead.


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