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01:27:44 <niven.freenode.net> Topic for #mapnik is: Mapnik - C++/Python Toolkit | Mapnik 2.0
01:27:44 <niven.freenode.net> Users on #mapnik: mapniklog @springmeyer cgs_bob tcb_ hobu Komzpa mishok13 CIA-28 mapnikbuild Simon- dodobas crust chad_burt dukeku racicot avar Phurl_ rcoup jctull twain47 tomhughes ser nikq Ldp__
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05:42:12 <cgs_bob> springmeyer: hello there!  after building libicu, boost , and mapnik, I gave quantumnik a try.  unfortunately I got this error:  http://osgeo.pastebin.com/d718f0f2d
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06:21:52 <springmeyer> cgs_bob: did you happen to install mapnik from trunk?
06:21:58 <springmeyer> (rather than 0.7) ?
06:22:33 <springmeyer> I would make sure to now pull from: http://svn.mapnik.org/tags/release-0.7.0/
06:23:35 <springmeyer> Qnik is not yet compatible with Mapnik trunk
06:23:54 <cgs_bob> yup.  I'll retry with that repo...thanks
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07:56:56 * Phurl_ is making good progress with the pch
08:25:38 <Phurl_> i have been able to compile all the headers with pch individually, and rework some of the dependancies
08:26:17 <Phurl_> refactored some of the classes. there is alot of work to do on the c++ side in terms of layering and isolation.
08:27:37 <Phurl_> i would like to split the modules up into :
08:27:48 <Phurl_> all the grammer stuff should be separated
08:28:05 <Phurl_> all the basic geometry should be in its own area
08:31:38 <Phurl_> also I am removing everything dynamic right now, shared libs, python and dl
08:31:52 <Phurl_> will make it static and standalone for optimization
08:32:08 <Phurl_> we can always bloat it up later
08:32:55 <dodobas> pch?
08:32:56 <dodobas> hi Phurl_
08:34:28 <Phurl_> dodobas, hi
08:34:33 <Phurl_> precompiled headers
08:34:54 <Phurl_> i have now gotten every header file to compile individually with pch
08:35:13 <Phurl_> and have been working on the build and optimization of mapnik
08:35:20 <Phurl_> python is nice
08:35:34 <dodobas> always :)
08:35:38 <Phurl_> but speed is better
08:36:00 <Phurl_> i think that we should be able to generate c++ code from these stylesheets
08:36:15 <Phurl_> and make higher speed rendering with no dynamic shit
08:36:27 <Phurl_> at least i am going to try
08:36:40 <Phurl_> if you write the code well, you can unroll loops and other things like that
08:41:53 <Phurl_> dodobas, did you ever profile where your rendering is spending time?
08:42:01 <Phurl_> how long do you need to render a tile?
08:42:11 <Phurl_> can you run oprofile and collect some stats?
08:42:25 <Phurl_> valgrind/callgrind?
08:44:21 <Phurl_> from what I have seen, the code has its own language
08:44:25 <Phurl_> that cannot be optimial
08:44:48 <Phurl_> why should the map took need you to learn a new language, and then have to optimize it?
08:44:54 <Phurl_> tool
09:09:28 <dodobas> Phurl_: i have mostly large datasets...
09:09:59 <Phurl_> yes.
09:10:06 <Phurl_> and where is the time spent?
09:10:17 <Phurl_> database indexes?
09:10:21 <Phurl_> cache faults
09:10:22 <dodobas> and im not worried about the speed
09:10:28 <Phurl_> no?
09:11:08 <dodobas> there is no use for a index, when you have 200mb of data per tile...
09:11:12 <dodobas> ok..100mb
09:11:36 <dodobas> indexes only work for bigger scales
09:12:03 <dodobas> and rasters are compleatly different story
09:16:39 <Phurl_> 100mb? wow
09:16:49 <Phurl_> ok, well if you have a big rendering job
09:16:58 <Phurl_> please do run oprofile on it
09:17:05 <Phurl_> i would be interested in where the time is going
09:17:13 <dodobas> oprofile?
09:19:56 <Phurl_> yes
09:20:07 <Phurl_> http://oprofile.sourceforge.net/news/
09:20:22 <Phurl_> it is an instruction level system wide profiler
09:20:29 <Phurl_> you can see where the time is spent
09:22:27 <dodobas> will do
09:29:07 <Phurl_> that would be interesting
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13:03:06 <Ldp__> artem: interesting bug report on mapnik-users
13:03:26 <artem> Ldp__: which one :)
13:03:32 * artem checking
13:03:38 <Ldp__> the 100% hang one
13:03:43 <Ldp__> +cpu
13:04:04 <Ldp__> ah, you just replied :)
13:04:30 <Ldp__> s/mapnik-users/mapnik-devel/ argh, ignore me ;)
13:05:14 <artem> i recall fixing something related in mapnik/agg so we'll see
13:06:14 * artem got to run but bbl for 0.7.0 release. Ldp__: excellent re: haiti map!!
13:06:26 <Ldp__> thx, see you around
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17:13:42 <Phurl> http://www.openstreetmap.org/user/h4ck3rm1k3/diary/9264 help out skoder on openstreetmap
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