A lot of them are too large. Try:
Andy wrote:
> Hi to all,
>
> I have the following configuration:
> Dual Xeon 2.8 Ghz, 1G RAM and postgre 8.0.3 installed.
>
> Modified configuration parameters:
>
> max_connections = 100
>
> shared_buffers = 64000 # 500MB = 500 x 1024 x 1024 / (8 x 1024) (8KB)
shared_buffers = 10000
> work_mem = 51200 # 50MB = 50 x 1024 KB
work_mem = 4096
> maintenance_work_mem = 102400 # 50MB = 100 x 1024 KB
>
> checkpoint_segments = 10
>
> effective_cache_size = 25600 # 200MB = 50 x 1024 / 8
>
> client_min_messages = notice
> log_min_messages = notice
> log_min_duration_statement = 2000
>
>
>
> I get the feeling the server is somehow missconfigured or it does not
> work at full parameter. If I look at memory allocation, it never
> goes over 250MB whatever I do with the database. The kernel shmmax is
> set to 600MB. Database Size is around 550MB.
That's because you have work_mem set massively high. Remember that's
PER SORT. If you have 10 queries running each doing 3 sorts that's 30x
the work_mem right there.
Chris
