Re: BerkeleyDB versions

[Howard Chu <hyc@symas.com>]

Pierangelo Masarati wrote:
> Howard Chu wrote:
>
> > Our early tests with DB 4.6.1 thru 4.6.3 showed impressive performance
> > gains, making it seem worthwhile. But we have no way of knowing how the
> > current 4.6.18 will perform at the moment.
>
> Were those speedups confined to, say, write, or general?

In general. You might recall that Jong-Hyuk Choi had done some work identifying 
bottlenecks in BDB's memory management; Sleepycat never used the code that Jong 
sent them but they still rewrote their memory manager between DB 4.5.20 and 
4.6.1 as a result of Jong's work. Since the memory manager affects all 
operations in the DB library, the speedups can be seen everywhere.
--
  -- Howard Chu
  Chief Architect, Symas Corp.  http://www.symas.com
  Director, Highland Sun        http://highlandsun.com/hyc/
  Chief Architect, OpenLDAP     http://www.openldap.org/project/