[mapserver-dev] Performance issue with MS 7.x

[thomas bonfort]

Please open an issue for this

On 29 February 2016 at 18:38, Pierre Mauduit <pierre.mauduit at camptocamp.com>
wrote:

> Hi list,
>
>
> On Mon, Feb 29, 2016 at 5:33 PM, thomas bonfort <thomas.bonfort at gmail.com>
> wrote:
>
>> For what kind of requests (WMS, WFS, raster, vector, ...)?
>>
>>
> It was a WMS getmap onto a layer which gets its data from a shapefile. The
> performance issue comes from the fact that the msGetProjectNormalized()[1]
> call on the projections will need to create a new proj4 context with loads
> of costly calls to strncmp(). The getmap request in 6.5 (official deb
> package) shows that 6billions CPU cycles are needed, against more than 30
> billions in 7.0.
>
> I can provide more details if needed, regards,
>
> [1]
> https://github.com/mapserver/mapserver/blob/branch-7-0/mapproject.c#L1106-L1107
>
> -- Pierre
>
>
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