Re: Concurrent Page Cache

[Howard Chu]

This ladder locking is also known as lock-coupling in the database world. 
It's a good solution when you have lots of tasks and need high concurrency, 
and proven in a lot of literature. You might notice more overhead if you only 
have a small number of tasks (e.g. 2-3) but it definitely scales better than 
just holding onto one lock or a small number of locks.
--
  -- Howard Chu
  Chief Architect, Symas Corp.  http://www.symas.com
  Director, Highland Sun        http://highlandsun.com/hyc
  OpenLDAP Core Team            http://www.openldap.org/project/
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