Re: [Neo4j] performance guide

2011-09-24 Thread Mattias Persson
2011/9/10 Linan Wang tali.w...@gmail.com Andreas, thanks. can't wait for your result. one correction on my list: Retrieve a certain types of relationships of a node should be faster than retrieve all. i mis-read the source code in NodeImpl.java, in which private volatile RelIdArray[]

Re: [Neo4j] performance guide

2011-09-10 Thread Linan Wang
Andreas, thanks. can't wait for your result. one correction on my list: Retrieve a certain types of relationships of a node should be faster than retrieve all. i mis-read the source code in NodeImpl.java, in which private volatile RelIdArray[] relationships is an array of array. the updated list:

[Neo4j] performance guide

2011-09-09 Thread Linan Wang
hi, I once read a blog about how long it take for computation operations such as read from L1 cache, RAM access, send packet from usa to eu, etc. having a rough idea of the relative cost of major computation operations, we have better control. for example, in my project i also use property to

Re: [Neo4j] performance guide

2011-09-09 Thread Andreas Kollegger
Hi Linan, These are good questions. I am currently following a similar approach to characterizing the performance of basic graph operations, and then also simple graph algorithms on various shapes of graphs. My initial investigation is on small graphs on my laptop, but this weekend I'm testing