On Mon, 26 May 2014, Jim Klimov via illumos-discuss wrote:
Having an abundance of empty pages in advance in is one way to improve ssd write speeds, as well as longevity, and higher vendor over-provisioning is one way to achieve this. Other ways include the user overprovisioning that keeps some ranges of LBAs from ever being written.
An abundance of empty pages improves write latency at lower write rates but does not necessarily improve overall throughput since throughput is still gated by page erase rates.
The correct answer for what to do depends on how the device will be used and on the device itself.
Bob -- Bob Friesenhahn bfrie...@simple.dallas.tx.us, http://www.simplesystems.org/users/bfriesen/ GraphicsMagick Maintainer, http://www.GraphicsMagick.org/ ------------------------------------------- illumos-discuss Archives: https://www.listbox.com/member/archive/182180/=now RSS Feed: https://www.listbox.com/member/archive/rss/182180/21175430-2e6923be Modify Your Subscription: https://www.listbox.com/member/?member_id=21175430&id_secret=21175430-6a77cda4 Powered by Listbox: http://www.listbox.com
