Wednesday, July 29

No, not the Adobe one, but the one that powers your phones and tablets and increasingly, notebooks and desktops.
Posted by: Pixy Misa at
09:14 AM
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A lot of my job has been creating indexes and queries that reduce the time required to get the requisite data from disk to memory. My understanding is that will largely go away, and accessing database tables will be more like working with internal tables -- you'll still need to do binary searches in large tables but the whole physical layer problem is basically eliminated.
I wonder if in the long run this might affect AI more than anything. Seems like it would be a lot easier to model processes for massively parallel synaptic connections in addressable memory space. And real relationships are relational, which is why the relational database is so useful.
SSD is a huge benefit for PCs, extended the useful life of mine for a few years (well, maybe only because I stopped gaming).
Posted by: TallDave at Wednesday, July 29 2015 01:32 PM (74ZYB)
SSDs are already a life-saver for database tuning, but XPoint sounds like pure magic.
Posted by: Pixy Misa at Wednesday, July 29 2015 01:53 PM (PiXy!)
Posted by: Mauser at Wednesday, July 29 2015 07:56 PM (TJ7ih)
Posted by: Pixy Misa at Wednesday, July 29 2015 07:57 PM (PiXy!)
Don't you mean byte addressable?
Posted by: conrad6 at Thursday, July 30 2015 04:43 AM (826FZ)
Posted by: Pixy Misa at Thursday, July 30 2015 11:08 AM (PiXy!)
It's interesting, it was almost exactly the same performance boost as I'd gotten from moving the database to an 8K blocksize (they were using a 1K DB blocksize on an OS that was 8K blocksize, so every read was 8x slower).
Users like it when your database gets 100x faster over a year.
Just today I worked on a program that does a nine-table join, made it about 25x faster by finding a way to restrict one of the result sets at a different point in the query. Even when everything is indexed properly you can still have issues like this in large joins where some of the table have tens of millions of records.
Posted by: TallDave at Saturday, August 01 2015 04:18 PM (74ZYB)
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