[OSM-dev] slow osm.org tile server
tom at compton.nu
Wed Apr 10 06:56:35 UTC 2019
On 09/04/2019 19:39, Wolfram Schneider wrote:
> On Mon, 25 Mar 2019 at 18:16, Wolfram Schneider <wosch at freebsd.org> wrote:
>> I noticed that the standard OSM tile servers
>> (N.tile.openstreetmap.org) are currently slow.
>> On the site
>> you will see that OSM is the slowest, and takes at least 5 seconds to
>> get all tiles. The other servers responses in less than a second.
>> Downloading a single tile is also always slow:
>> curl https://b.tile.openstreetmap.org/11/1100/671.png >/dev/null
>> % Total % Received % Xferd Average Speed Time Time Time Current
>> Dload Upload Total Spent Left Speed
>> 100 41017 100 41017 0 0 7658 0 0:00:05 0:00:05 --:--:-- 7146
>> it seems that there is a delay of 5 seconds until the tile is fully
>> delivered, and the download rate is at 7Kbyte/s. I tried this from
>> different locations (Bay Area, NYC, Germany) - the result is always
>> the same.
> it was better in the last week, down to 2-3 seconds. But not it is
> slow as hell again and takes more than 6.5 seconds to fetch a single
> time curl -sSf https://c.tile.openstreetmap.org/11/1100/671.png >/dev/null
> real 0m6.587s
> user 0m0.017s
> sys 0m0.009s
> you can repeat the request and it is still slow (5+ seconds).
> who is in charge of the HTTPS setup for OSM?
Using curl like that will be slow beause you are being put
in a deliberate slow lane when not coming via the web site.
>> PS: if I do not use HTTPS and instead plain old HTTP, it will take
>> only 0.3 - 0.6 seconds.
>> Any idea whats wrong with the HTTPS setup for the tile servers?
>> Wolfram Schneider <wosch at FreeBSD.org> https://wolfram.schneider.org
>> Planet.osm extracts: https://extract.bbbike.org
>> BBBike Map Compare: https://mc.bbbike.org/mc
Tom Hughes (tom at compton.nu)
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