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duck
Involved
Involved



Joined: Jul 03, 2006
Posts: 273

PostPosted: Wed Sep 16, 2009 9:59 am Reply with quote

Just curious what is this tables purpose?
 
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Palbin
Site Admin



Joined: Mar 30, 2006
Posts: 2583
Location: Pittsburgh, Pennsylvania

PostPosted: Wed Sep 16, 2009 10:19 am Reply with quote

It is a a Memory/HEAP table that is used for the Who is Where block.

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"Debugging is twice as hard as writing the code in the first place. Therefore, if you write the code as cleverly as possible, you are, by definition, not smart enough to debug it." — Brian W. Kernighan. 
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dad7732
RavenNuke(tm) Development Team



Joined: Mar 18, 2007
Posts: 1242

PostPosted: Mon Oct 19, 2009 11:59 am Reply with quote

... and if you do a MySQL optimize it will show errors for those tables but not to worry, it's supposed to show errors.
 
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Raven
Site Admin/Owner



Joined: Aug 27, 2002
Posts: 17088

PostPosted: Tue Oct 20, 2009 12:33 am Reply with quote

There is really no reason to store this data in the database and incur more MySQL overhead so I just load it into memory for super fast access Smile
 
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hicuxunicorniobestbuildpc
The Mouse Is Extension Of Arm



Joined: Aug 13, 2009
Posts: 1123

PostPosted: Tue Oct 20, 2009 11:59 am Reply with quote

What is the file who calls that kind of table?
 
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Palbin







PostPosted: Tue Oct 20, 2009 12:17 pm Reply with quote

Look in the block and i think there are two files within the includes folder. i can't remember the name, but they should be named as such you should recognize them.
 
Raven







PostPosted: Tue Oct 20, 2009 12:20 pm Reply with quote

Any file you want. It acts just like a MySQL table with certain, but not imposing, restrictions. See http://dev.mysql.com/doc/refman/5.0/en/memory-storage-engine.html for more information.
 
hicuxunicorniobestbuildpc







PostPosted: Tue Oct 20, 2009 12:39 pm Reply with quote

Wow! This is really interesting. I found the files. Now I understand what is the meaning. Very Happy How clever you are. lol


Last edited by hicuxunicorniobestbuildpc on Tue Oct 20, 2009 12:44 pm; edited 1 time in total 
Raven







PostPosted: Tue Oct 20, 2009 12:44 pm Reply with quote

It will speed up nuke to the extent that the MySQL table I/O is sped up. Memory tables do not incur anywhere near the overhead for ISAM operations. But, they are not a general replacement for ISAM tables as they are limited as described in the link above. However, I use them in a couple of places and with hundreds of rows of non-indexed addressing and they are faster than ISAM table storage even w/o indexes.
 
hicuxunicorniobestbuildpc







PostPosted: Tue Oct 20, 2009 12:48 pm Reply with quote

Raven. Can you update Cache Lite addon so we can speed up a little bit more loading blocks. Thanks in advance.

Quote:
It will speed up nuke to the extent that the MySQL table I/O is sped up. Memory tables do not incur anywhere near the overhead for ISAM operations. But, they are not a general replacement for ISAM tables as they are limited as described in the link above. However, I use them in a couple of places and with hundreds of rows of non-indexed addressing and they are faster than ISAM table storage even w/o indexes.


Now I realize why RaveNuke is loading so fast. Cheers Very Happy
 
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