Qingqing Zhou wrote:
>
> "Bruce Momjian" <pgman@candle.pha.pa.us> wrote
> >
> > Added to TODO list.
> >
> > > One thing we tried in February was padding out the statically defined
> > > locks with dummy lock definitions in the enum. This has the effect of
> > > ensuring that the most contested locks are very definitely in their own
> > > cache line and not shared with others.
> > > That showed a noticeable improvement in performance, probably because it
> > > costs very little to implement, even if the code would require some
> > > explanatory documentation.
> > >
>
> Has this been done? See the LWLOCK_PADDED_SIZE macro in code.
Oh, yes, thanks. I thought it had but I couldn't find anything in the
area of the code he propsed the patch.
-- Bruce Momjian http://candle.pha.pa.us EnterpriseDB http://www.enterprisedb.com
+ If your life is a hard drive, Christ can be your backup. +
