[mapserver-dev] EPSG File Overhead

[Paul Ramsey]

Yes, the "with ESPG" performance values were on a file with the two
EPSG codes Andrea used moved to the top of the file.

P.

On Thu, Feb 5, 2009 at 11:06 AM, Steve Lime <Steve.Lime at dnr.state.mn.us> wrote:
> Out of curiosity is that with a shorted epsg file? Steve
>
>>>> On 2/4/2009 at 2:56 PM, in message
> <30fe546d0902041256h49c13b7ejefdf019f0b4e0708 at mail.gmail.com>, Paul Ramsey
> <pramsey at cleverelephant.ca> wrote:
>> I'm firing up Andrea's suite and getting some profiling results...
>>
>> Using the tiger_pg test harness, and his default map file, with the
>> EPSG codes at the top of the EPSG file, I get throughput of 35.5 req/s
>> and profiling shows fscanf taking 26% of time. Editing the map file to
>> replace init=epsg: entries with full proj4 definitions, and running
>> again, I get throughput of 44.7 req/s and profiling shows that proj4
>> overhead has dropped to invisible (probably because there are no
>> actual reprojections in this test). At that point, the biggest CPU
>> overhead is compressing the output GIF, so we're going very well
>> indeed.
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>
>