Re: RE: [COMMITTERS] pgsql/src/backend/access/transam ( xact.c xlog.c)

> * Bruce Momjian <pgman@candle.pha.pa.us> [001117 11:23]:
> > > > sleep(3) should conform to POSIX specification, if anyone has the
> > > > reference they can check it to see what the effect of sleep(0)
> > > > should be.
> > > 
> > >   Yes, but Posix also specifies sched_yield() which rather explicitly
> > > allows a process to yield its timeslice.  No idea how well that is
> > > supported.
> > 
> > I have it on BSDI.  We could add a configure check, and use it if it is
> > there.  Another idea is to add a shared memory flag when someone enters
> > the 'commit' section of the transaction code.  That way, a backend could
> > check to see if another process is _about_ to commit, and wait.
> On UnixWare, it requires the -Kthread or -Kpthread command, which then
> links in the threads library...
> 
> I'm not sure that this is a good thing or not....

I would hope it just calls the function, and does not bring in thread
startup stuff.

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