On 4/18/08, J. Andrew Rogers <[EMAIL PROTECTED]> wrote: > On Apr 17, 2008, at 3:32 PM, YKY (Yan King Yin) wrote: > > Disk access rate is ~10 times faster than ethernet access rate. IMO, > > if RAM is not enough the next thing to turn to should be the harddisk. > > Eh? Ethernet latency is sub-millisecond, and in a highly tuned system > approaches the 10 microsecond range for something local. Much, much faster > than disk if the remote node has your data in RAM and is relatively local. > > Note that "relatively local" can mean geographically regional. The > round-trip RAM access time from my machine to a machine on the other side of > town is a fraction of millisecond over the Internet connection (not > hypothetical, actually measured at ~400 microseconds). I wish disk access > was even remotely that good. And this was with inexpensive Gigabit > Ethernet.
LOL... you're right, I forgot to consider latency. Ethernet is much faster than harddisk if we measure access times. But there is another factor: Harddisk is owned by the user. Memory over the net is owned by others, so must be shared. It's not easy to arrange a distributed and cooperative storage scheme. It's hard enough to solve core AGI problems, I simply don't have time to do deal with that. Solid State Disks seems to be a promising solution. YKY ------------------------------------------- agi Archives: http://www.listbox.com/member/archive/303/=now RSS Feed: http://www.listbox.com/member/archive/rss/303/ Modify Your Subscription: http://www.listbox.com/member/?member_id=8660244&id_secret=101455710-f059c4 Powered by Listbox: http://www.listbox.com
