On Mon, 10 Aug 2009, Andrey Kuzmin wrote:
Also, SSD devices often need to erase much more data than even 128K (e.g. 512K) in order to prepare for a write so three writes may take much more time than one large write. SSD devices write large blocks at a time so if aRecent SSDs typically accumulate (coalesce) multiple writes in the on-board DRAM to flush these to NAND at a later time, so multiple writes are hardly an issue.
If the SSD buffers the writes in DRAM then the postponed writes written via NFS COMMIT become a total non-issue.
QED Bob -- Bob Friesenhahn [email protected], http://www.simplesystems.org/users/bfriesen/ GraphicsMagick Maintainer, http://www.GraphicsMagick.org/
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