performance « Load « JPA Q&A





1. In hibernate statistics whats the difference between load and fetch    stackoverflow.com

Im mainly looking at the EntityStatics (http://www.hibernate.org/hib_docs/v3/api/org/hibernate/stat/EntityStatistics.html). I can see a lot of fetch, loads and updates and i cant find anywhere that says what the difference between them ...

2. To Lazy Load or not in effort to improve performance    stackoverflow.com

It has been suggested that in order to improve performance of our system that the use of lazy loading should be used across the board. That is to change the ...

3. How can we reduce the unnecessary loading of objects?    stackoverflow.com

In hibernate as well as simple ORM strategy,i am normally loading all the values for the objects.Is there any way to avoid this. Due to this my app running slowly..

4. How significant are JPA lazy loading performance benefits?    stackoverflow.com

I understand that this is highly specific to the concrete application, but I'm just wondering what's the general opinion, or at least some personal experiences on the issue. I have an aversion ...

6. Performance Considerations: Copy huge loads of data    forum.hibernate.org

Hello Hibernate community! I am currently in the situation to make a decision between using JPA/Hibernate or plain JDBC. One task of my scenario the software will have to achieve, is to PLAIN COPY huge amounts of data between tables (>100,000 rows). When using Hibernate Entities for this, I imagine the heap space of the JRE will be stressed quite a ...

7. Lazy Loading and Performance    forum.hibernate.org

We are looking at using Hibernate for a large system, and a concern has been raised around the potential negative performance impact of lazy loading. Lazy loading obviously is a very beneficial concept, but I suspect that if you know you need an object and its related objects that use lazy loading would be slower than issuing a single select statement ...

8. The performance problem of loading data from Sybase.    forum.hibernate.org

It's too slow to load table's records with Hibernate from Sybase. For example,a simply one-two-many parent-child relationship,contains 200 records in the parent table and 2000 records in the child table.When loading all of them from Sybase,30 seconds will be wasted but only 3 seconds while loading from Oracle with Hibernate. This's details below: Sofeware enviroment: Hibernate2.0.3 Datebase:Sybase 12.0+Solaris 8/Oracle 9i+WindowsXP This ...

9. Lazy loading without open Session - performance issue    forum.hibernate.org

Hi, We are using Hibernate for a web application using Oracle 10g as the appn server and Oracle 9.0.2 as the database. We are using Hibernate2. There are many related objects and thereby, lazy loading is an imp feature which we would want to use. There is a problem in using it by keeping the session open till all the values ...





10. Performance issue(Loading Page)    forum.hibernate.org

Hi, I Have created a Layout like below in one of my jsp prjectPidCostCentres Pojo is dependented in projectRegionInfo Here at first the data related to projectRegionInfo is coming from actionclass (runs query and stores the data into request.object) My doubt ...

11. Low performance (2-phase load) with optional many-to-one    forum.hibernate.org

Hibernate version: 3.2.4sp1 I've found a similar bug on JIRA (bug HB-12) that is supposed to be fixed, but I still encounter the same [similar] problem: http://opensource.atlassian.com/project ... owse/HB-12 I'm using the Criteria API to retrieve the events along with the device info. Since I'm using fetch="join", Hibernate also loads the parent, which is fine. However, as described in bug HB-12, ...

12. Hibernate Lazy Loading performance degradation    forum.hibernate.org