Read about "wear leveling"? So, no problem with write cycles. For example yffs2 filesystem gives you a tremendous gain in lifetime of your USB flash storage.
regards, Guido Stepken Am 14.01.2012 15:56 schrieb "Michael Haupt" <[email protected]>: > Hi, > > 2012/1/14 Janko Mivšek <[email protected]>: > > Conclusion? Why RAM won't be just a L3 cache in a whole hiearchy of > > caching from SSD up to CPU? Automatic, supported by OS or even hardware, > > as CPU caches are? Then image wont be needed to be read to RAM and > > snapshoted back to disk, it can be run directly from disk. > > SSDs are Flash memory. The number of write cycles is limited before > the memory starts to fail. Smalltalk frequently performs GC, which > involves moving objects, i.e., writing. Writing is also much slower > than reading, and AFAIK possible only block-wise (with a block being > significantly larger than your average object). Flash file systems > apply optimisations to distribute writing evenly, avoiding excessive > writing in some places and consequent earlier failure. > > Best, > > Michael > >
