On Fri, Aug 4, 2017 at 1:04 PM, Noel Chiappa via cctalk < cctalk@classiccmp.org> wrote:
> > From: Paul Koning > > > flash storage devices do wear leveling. The fact that you're writing > to > > the same block number doesn't mean you're actually writing to the > same > > spot on the physical flash memory. > > Yeah, but why 'waste' writes on swapping/paging activity, if there's a > RAM-disk ready to hand? > True. RAM is always preferred. Just that at 20MB/s it would take a long time to write the 10TB-100TB of data you can write to SD cards these days. 10TB of data takes ~130 days to write at 20MB/s. 100TB takes almost 4 years. And you're rarely doing 100% writes, so the effective rate over the long haul would be 10x or 100x smaller than the theoretical max. Warner
