Re: PostgreSQL Performance issue

On Tue, Apr 27, 2010 at 5:17 AM, Alban Hertroys
<dalroi(at)solfertje(dot)student(dot)utwente(dot)nl> wrote:
> On 27 Apr 2010, at 10:11, <A(dot)Bhattacharya(at)sungard(dot)com> <A(dot)Bhattacharya(at)sungard(dot)com> wrote:
>
>> Dear All Experts,
>>
>> I am using in PostgreSQL 8.3.5 database on windows 64 bit OS.
>> However, I have a batch program written in Java which processes the data and populates them into tables in Postgres database.
>>
>> I have 622,000 number of records but it is taking almost 4 and half hours to load these data into the tables.
>
> Wow, that's averaging almost 40s per insert! I don't think those inserts not being in a single transaction explains that much of a delay. Not that changing that doesn't help, but there's more going on here.

You got that backwards: it's 40 inserts/sec. This is about par for
the course on windows style fsync on slow hardware iirc. Solution is
to use transactions, or play with fsync.

merlin