About Free/Defrag RAM

Discussion of anything and everything relating to chess playing software and machines.

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bob
Posts: 20943
Joined: Mon Feb 27, 2006 7:30 pm
Location: Birmingham, AL

Re: About Free/Defrag RAM

Post by bob »

F. Bluemers wrote:
Gian-Carlo Pascutto wrote:Sounds a bit like calling "sync" in Linux to ensure dirty pages are written to disk.

That has nothing to do with defragmentation. And it will happen automatically anyway, or you would have massive data loss at the first power failure.

So basically I don't believe a word of it :) And I can't say I have ever observed it either.

You can probably find a detailed enough description of the VM subsystem to prove or disprove this assertion.
is this ok?:
http://books.google.nl/books?id=MzU3ms3 ... +page+list
In case my posts were not clear enough:using memory defraggers don't make sense as they cost as much time as they win back later.
The issue is, there is no gain from doing this. Either you flush everything by executing a specific "defrag" program, or else you flush it by executing your chess program. Executing the chess program directly is actually more efficient.
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AdminX
Posts: 6363
Joined: Mon Mar 13, 2006 2:34 pm
Location: Acworth, GA

Re: About Free/Defrag RAM

Post by AdminX »

bob wrote:
F. Bluemers wrote:
Gian-Carlo Pascutto wrote:Sounds a bit like calling "sync" in Linux to ensure dirty pages are written to disk.

That has nothing to do with defragmentation. And it will happen automatically anyway, or you would have massive data loss at the first power failure.

So basically I don't believe a word of it :) And I can't say I have ever observed it either.

You can probably find a detailed enough description of the VM subsystem to prove or disprove this assertion.
is this ok?:
http://books.google.nl/books?id=MzU3ms3 ... +page+list
In case my posts were not clear enough:using memory defraggers don't make sense as they cost as much time as they win back later.
The issue is, there is no gain from doing this. Either you flush everything by executing a specific "defrag" program, or else you flush it by executing your chess program. Executing the chess program directly is actually more efficient.
HAHA! :lol: :lol: :lol:

Now I have another excuse to keep buying more chess programs! Just tell the wife I am doing system maintenance! Thanks Bob, you the MAN!

:D
"Good decisions come from experience, and experience comes from bad decisions."
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Ted Summers