logalloc.so

berkeley db 4.6.21的源码。berkeley db是一个简单的数据库管理系统

m4_comment([$Id: logalloc.so,v 1.2 2006/08/24 16:32:32 bostic Exp $])

m4_ref_title(Upgrading m4_db Applications,
    Release 3.1: log file pre-allocation,, upgrade.3.1/tmp, upgrade.3.1/disk)

m4_p([This change only affects Win/32 applications.])

m4_p([dnl
On Win/32 platforms m4_db no longer pre-allocates log files.  The problem
was a noticeable performance spike as each log file was created.  To turn
this feature back on, search for the flag DB_OSO_LOG in the source file
m4_path(log/log_put.c) and make the change described there, or contact
us for assistance.])

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