Transaction Ids are assigned consecutively. As a result, access to the
bitmaps for CLOG and Subtrans will have a tendency to access the
just-recently allocated end of those data structures, which are updated
on successful transaction creation/completion (high level view).
Earlier we found that
Simon Riggs [EMAIL PROTECTED] writes:
These changes have almost no negative impact on run time performance and
can be implemented with minimum change. We can discuss whether the false
sharing phenomena actually occurs, but the bottom line ISTM is that if
we can avoid it ever occurring, for
On Sat, 2005-12-03 at 11:49 -0500, Tom Lane wrote:
Simon Riggs [EMAIL PROTECTED] writes:
These changes have almost no negative impact on run time performance and
can be implemented with minimum change. We can discuss whether the false
sharing phenomena actually occurs, but the bottom line
