RE: [Mldonkey-users] [patch #5940] Reduce geoip.dat disc access for country statistics

[Manolo _]

Hi to everybody.

Is it this mailing list to solve issues on mldonkey?

Why till now i've received no reply to my questions?

Regards.

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> To: address@hidden; address@hidden; address@hidden
> From: address@hidden
> Date: Tue, 22 May 2007 06:52:30 +0000
> CC: 
> Subject: [Mldonkey-users] [patch #5940] Reduce geoip.dat disc access for	country statistics
> 
> 
> Follow-up Comment #1, patch #5940 (project mldonkey):
> 
> Another approach, based on geoip.dat file mmap()ing:
> ftp://ftp.berlios.de/pub/mldonkey/pango/geoip_rewrite_and_caching_v4.patch
> The virtual memory size of the process will grow by geoip.dat size, but the
> overall memory usage is the same (without that patch, the file is mapped in
> filesystem's page cache instead). The benefit of the patch is to replace a
> lots of syscalls (probably around 20 seek() and 20 read() per lookup) by few
> page faults, when a required page needs to be loaded).
> 
> The two can be combined, but I don't know if it's worth it.
> 
> The patch is not minimal, the mmap() feature is just provided by the use of
> Bigarray.Array1.map_file; But I also rewrote geoip.ml to give in a more
> "ocaml-ish" style.
> 
> 
> (file #12821)
>     _______________________________________________________
> 
> Additional Item Attachment:
> 
> File name: geoip_rewrite_and_caching_v4.patch Size:29 KB
> 
> 
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> Reply to this item at:
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>   <http://savannah.nongnu.org/patch/?5940>
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