Author: Matthew Hull
Date: 11:49:00 03/11/04
Go up one level in this thread
On March 11, 2004 at 14:35:32, Robert Hyatt wrote: >On March 11, 2004 at 12:38:06, Vincent Lejeune wrote: > >>On March 11, 2004 at 11:19:49, Robert Hyatt wrote: >> >>>On March 10, 2004 at 13:49:01, Vincent Lejeune wrote: >>> >>>>Try this ATA flash disk, their access time is way more efficient than classical >>>>HD :o) >>>> >>>> >>>>http://www.theinquirer.net/?article=14635 >>> >>> >>>Not very big, _way_ expensive. And still slower than SCSI on transfer rate... >> >>This product is way younger than SCSI too >> >>as i wrote in the follow up message ( >>http://www.m-systems.com/content/Products/product.asp?pid=34 ) >> >>_Access time: <0.04 ms_ : so to read tablebase it should 100 times faster than >>SCSI disk >> >>I still to think this system will replace mechanical harddisk in some years ... >> >> > >People said the same thing about bubble memory when TI was actively working on >it. The mainframe world once had solid-state disks which were mainly used as page packs. No one uses these anymore, AFAIK. That tells me that it's either dog slow or just not cost effective (or both). Disks are fast and dirt cheap now. > > >>> >>> >>> >>> >>>> >>>>On March 08, 2004 at 23:49:58, William Penn wrote: >>>> >>>>>Pretty simple. Reduce hash size. That's the only thing I've found to have a >>>>>significant effect when tablebase access starts to churn the hard drive >>>>>constantly. Engine speed (kN/s) falls dramatically at that point, perhaps to 10% >>>>>or less of normal speed, and never recovers. However using smaller hash size >>>>>appears to fix this problem. >>>>> >>>>>For example my computer has 1G RAM installed. I can run Shredder 8 with 768MB >>>>>hash normally, although I often use 512MB which the op system prefers a bit >>>>>more. Now one would think that 512MB hash would be OK in any situation with 1G >>>>>RAM, but not so. It's too much hash when tablebase access starts to crank up >>>>>heavy in endgame situations. At that point, reducing hash size to 256MB usually >>>>>fixes this problem, restoring engine speed to a reasonable kN/s. I haven't yet >>>>>found it necessary to goto 128MB hash. >>>>> >>>>>[Windows XP Home, Athlon XP 2400+/2.0GHz, 1G RAM] >>>>>WP
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