Re: memory mapped store entries

Hi Stephen,

        How much memory do you save with mmapped files? Sorry if I miss that
info in your description.. Assuming sizeof(StoreEntry) on your system is S:

        mem = S * #entries;
        mmapped = 28*#entries + X*#entries;

        mmapped/mem = S / (28 + X) = ??

If we are talking less than ~20MB for, say, 20GB cache, then, maybe, the
savings are negligible considering the price. Also, does the "packing" of
entries introduce any processing overheads?

Thanks,

Alex.
Received on Tue Jul 29 2003 - 13:15:52 MDT