On 20 Jan 2008, at 12:30, Robert (Jamie) Munro wrote: > -----BEGIN PGP SIGNED MESSAGE----- > Hash: SHA1 > > Tom Hughes wrote: > | In message <[EMAIL PROTECTED]> > | Christopher Schmidt <[EMAIL PROTECTED]> wrote: > | > |> In the past, I think that we had talked about the fact that the / > map > |> request is resource intensive compared to most of the other ruby > calls, > |> and that some of it is memory + CPU intensive and might be a > small chunk > |> worth improving performance in. Given that sometimes the requests > are > |> returning reasonably quickly, this may be premature optimization > if al > |> lthe wait time is waiting for an available rails daemon. > | > | It is not especially CPU intensive. It is I/O and memory intensive > | but there isn't much we can do about that (well there is, but it > | probably isn't an answer people will want to hear). > > I guess it is only the map call that is a problem. If that is the > case, > as this is a read-only call that needs not authentication or other > rails > related input, could we rewrite it in a more efficient language that > is > capable of streaming the data directly and use apache rewrites or > similar to serve them? > > I think we should also offer 2 versions of the map query - the one > that > we already have, that completes all the ways outside the box, and > another that just indicates which ways are incomplete, but takes less
er, thats what it used to do > > resources to run, and therefore runs quicker. Ideally, there would > also > be an option to add one node for any ways that go off the east or > south > of the box so that if you download 2 adjoining areas, you will get all > the data once and once only. > > Robert (Jamie) Munro > -----BEGIN PGP SIGNATURE----- > Version: GnuPG v1.4.6 (Darwin) > Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org > > iD8DBQFHkz7Tz+aYVHdncI0RAs/lAJ0eNw14XFeZuL3AwbzMimH+LEvslACg7yyy > VpS1z9/tVWRUMktUcF2kn1s= > =yQK+ > -----END PGP SIGNATURE----- > > _______________________________________________ > dev mailing list > [email protected] > http://lists.openstreetmap.org/cgi-bin/mailman/listinfo/dev > have fun, SteveC | [EMAIL PROTECTED] | http://www.asklater.com/steve/ _______________________________________________ dev mailing list [email protected] http://lists.openstreetmap.org/cgi-bin/mailman/listinfo/dev
