Author: Robert Hyatt
Date: 13:49:54 04/30/04
Go up one level in this thread
On April 30, 2004 at 16:25:29, Eugene Nalimov wrote: >On April 30, 2004 at 16:24:39, Robert Hyatt wrote: > >>On April 30, 2004 at 14:42:29, Vincent Diepeveen wrote: >> >>>On April 30, 2004 at 13:44:17, Ingo Bauer wrote: >>> >>>>On April 30, 2004 at 13:36:44, Ingo Bauer wrote: >>>> >>>>>On April 30, 2004 at 09:53:01, Karl-Johan Olsen wrote: >>>>> >>>>>>btw. it's in the classical interface... >>>>> >>>>>Hi >>>>> >>>>>I never checked this and can't at the moment (will later) but it is completly >>>>>useless. 64 is more than enough, let the OS do the caching job! >>>>> >>>>>Bye >>>>>Ingo >>>> >>>>OK, I could not wait: >>>> >>>>CPU0: AuthenticAMD x86 Family 6 Model 10 Stepping 0 2505 MHz >>>>GUI: Tablebases with 5 pieces found! [Cache: 999 MB + internal 13.67 MB] >>>>Engine: Shredder 8 (64 MB) >>>>by Stefan Meyer-Kahlen >>>> 4/04 0:00 +M11 1.Ne6 Rg6 (95) 5 >>>>best move: Nc7-e6 time: 0:00.016 min n/s: 7.687 CPU 93.7% n/s(1CPU): 8.203 >>>>nodes: 123 TB: 174 >>>> >>>>There seems to be a limitation of 999 MB for the TBs Cache, and the 5 Pcs at >>>>least are working fine. But again 999 is completly useless! The OS is doing the >>>>caching job allready. Use a bit more for Engine-Hash and let 100-200 MB Memory >>>>free for the OS. Done! >>>> >>>>Ingo >>>> >>>>Ingo >>> >>>The OS might cache it Ingo, but won't decompress it for you which also takes >>>quite some time. A bigger EGTB cache works better than letting the OS find the >>>golden coins. >>> >>>Best regards, >>>Vincent >> >>Current egtb cache caches compressed blocks. So this is a moot point. > >Unfortunately no. That is in my "TODO" list. > >Thanks, >Eugene So you are caching decompressed stuff? IE a buffer to read into, then decompress into the cache??? However, the original point is still valid, that this is not a big issue. Decompression compared to I/O is tiny. > >>Decompression is _not_ the bottleneck. From actual testing rather than >>guessing...
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