Fast forward-backward (write-read)

[Virgil Stokes]

On 24-Oct-2012 01:46, Paul Rubin wrote:
> Virgil Stokes <vs at it.uu.se> writes:
>> Yes, I do wish to inverse the order,  but the "forward in time" file
>> will be in binary.
> I really think it will be simplest to just write the file in forward
> order, then use mmap to read it one record at a time.  It might be
> possible to squeeze out a little more performance with reordering tricks
> but that's the first thing to try.
Thanks Paul,
I am working on this approach now...