Re: [PERFORM] Performance - moving from oracle to postgresql

2005-06-27 Thread Merlin Moncure
> There are some immediate questions from our engineers about performance > > "- Oracle has one particular performance enhancement that Postgres is > missing. If you do a select that returns 100,000 rows in a given order, > and all you want are rows 99101 to 99200, then Oracle can do that very >

Re: [PERFORM] Performance - moving from oracle to postgresql

2005-06-25 Thread Radu-Adrian Popescu
> "- Oracle has one particular performance enhancement that Postgres is > missing. If you do a select that returns 100,000 rows in a given order, > and all you want are rows 99101 to 99200, then Oracle can do that very > efficiently. With Postgres, it has to read the first 99200 rows and > then d

Re: [PERFORM] Performance - moving from oracle to postgresql

2005-06-24 Thread Rod Taylor
> There are some immediate questions from our engineers about performance > > "- Oracle has one particular performance enhancement that Postgres is > missing. If you do a select that returns 100,000 rows in a given order, > and all you want are rows 99101 to 99200, then Oracle can do that very >

[PERFORM] Performance - moving from oracle to postgresql

2005-06-24 Thread Greg Maples
Hi: I'm beginning the push at our company to look at running postgreSQL in production here. We have a dual CPU 2.8 GHZ Xeon Box running oracle. Typical CPU load runs between 20% and 90%. Raw DB size is about 200GB. We hit the disk at roughly 15MB/s read volume and 3MB/s write.