Tags » Visualvm

Slow performance with NamedParameterJdbcTemplate

Today I tried inserting 256 rows in a single, empty PostgreSQL table which has only one index on it using Spring’s NamedParameterJdbcTemplate . To my surprise the single transaction took over 3 minutes to complete, over 500ms per INSERT statement. 224 more words


Heap Dump Generation

Java memory model consists of Heap memory, Thread stacks, Perm gen area.
Heap is memory area which is used for allocating memory for class instances and arrays are created. 412 more words