Am 16.08.2011 12:04, schrieb Kai Krueger:
> On 08/15/2011 12:58 PM, Peter Körner wrote:
>> Hi
>>
>> Am 12.08.2011 17:37, schrieb Kai Krueger:
>>> r25070: Make use of prepared geometries from geos-3.1+. These
>>> dramatically speed up the polygon tests used by the advanced
>>> multipolygon handling code.
>>>
>>> r26292: Implement pgsql_nodes_get_list to speed up way and relation
>>> processing
>>
>> we're now running r26543 (intarray branch), let's see if it is faster.
>
> Unfortunately, the first batch didn't look to promising that it was any
> faster. :-( The majority of the time is still spent in processing
> relations it seems, with a single relation taking multiple seconds to
> process. I will try and see if I can at some point figure out what stage
> of processing relations takes so long, although that would presumably
> require to rebuild osm2pgsql with some extra instrumentation.

I don't see problems with that. We're free to add debug output and 
recompile.

> Earlier, when connecting directly to the database and trying to run some
> test queries, I noticed that I got some odd error messages. I can't
> remember the exact wording, but it was something along the line that it
> failed to write a temporary transaction log file. I am not sure how
> reproducible that error is, or if it is connected to the crash in
> osm2pgsql, but it may give some hints.

I guess the postgress logs could tell us about that, but unfortunately I 
don't know where to look for the logs (hint: it's not var/log ;)

Peter

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