re: CVS commit: src/bin/cp

[matthew green <mrg%eterna.com.au@localhost>]

> On Mon, Oct 25, 2010 at 08:52:43AM +0100, Matthias Scheler wrote:
> > On Sun, Oct 24, 2010 at 10:56:40PM +0000, David Holland wrote:
> > > Anyway, ISTM that writing from the mmap buffer in say 64K chunks would
> > > retain nearly all the advantages and get rid of the latency problem.
> > 
> > The way the code is currently written it only uses mmap(2) for
> > files smaller than 8MB anyway. Your suggested change would require
> > more work than reducing the size of the mapped memory.
> 
> Forget that, I misunderstood what you said. We can still use one
> mmap(2) but should write out that memory with multile write(2)
> system calls.

FWIW, bozohttpd defaults to mapping upto 64MB regions and writing
out up to 64KB at a time.


.mrg.