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100

Performance issue in a query due to compareTo calls

Hello, we have a question again regarding query performance. The query: SELECT v FROM Values v ... ; //For performance reasons, we use a list instead of a map as put operations are more expensive ... because multiple entities are involved. You can improve the performance of queries by using indexes
99

Performance tuning, best practices

the question is: - how can we tune for performance ? - do we need more processors ? - should we change some ... (possibly a complex query) is slow also for a single user? i.e. can you check if the performance issue is due to load of several concurrent clients, or maybe same slow performance is also for a single
99

Java 6/7 Performance Comparison

embedded mode based on the console tutorial, there seems to be a bit of a performance gap running ... manager, however any operations once loaded appear to perform comparably. I've tried running ... /threads to applications but have not noticed any differences in performance so looking for some advice
99

Query Execution on parallel threads don't lead to performance improvements

the performance. But we don't see any performance improvements. Is there any possibility to improve the query performance with parallel threads? We use the ObjectDB as an embedded database ... doesn't necessarily improve performance, if the serial execution already consumes all the resources
98

Performance question

.g. a date field you want to query for. Is there an improvement in performance if I create a "mirror ... ? Yes. Mirroring the date will improve performance (unless otherobject is embedded object ... this performance improvement. If you keep the date only in the second entity class - at least define 2
96

Join performance in Objectdb

, it is supposed that the count of every field should be the same performance. I have no time to test the field ... ://www.objectdb.com/database/forum/226". The random strings and number may perform differently. TIA gzdillon Lai Yang
96

Performance in SELECT statement

a separate thread regarding the persisting performance and provide more details and sample code. support Support The index thing did the trick! Thank you... I will post another thread for the performance issue regards! paddy Patrick Gerhardt
96

Performance in large transactions

Hello, we have a performance problem when we use a large transaction. Let's do exactly the same in several transactions the ObjectDB works much faster. In our use case, we create many new entities ... the effect on performance is reasonable, but test_OneTransaction demonstrates an extreme case in
96

objectdb.java.util.ArrayList and performance

Hello guys, i have a question regarding "objectdb.java.util.ArrayList" and performance. In my project i'm iterating over an array with about 100k items. Fetching them into the EntityManager takes ... . Can anybody give me a hint whats the reason or how i can increase performance here? ph.schoerkhuber
96

Slow performance on Mac

createEntityManager() performance) duskov Dusko Vuksanovic Please ignore. This was Mac / Java issue ... performance issues on one of my development machines. On one machine my test scenario would take <1s

Getting Started

ObjectDB is very easy to use. Follow the Getting Started Tutorial and the Quick Tour manual chapter and in minutes you may be able to write and run first Java programs against ObjectDB.

Prior knowledge or experience in database programming (SQL, JDBC, ORM, JPA, etc.) is not required, but some background in using the Java language is essential.

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