Hi!

> Probably a relevant question for Stas given the varying measurements:
> is the TPF server being fronted by a cache?

Yes, they are all behind varnish. It should be pretty easy to bypass it
though - IIRC it's URL-based, so adding something like
&dontcache=<random number> to the URL would bypass the cache.

> Here's an example NGINX config I use on fragments.dbpedia.org:
> https://gist.github.com/RubenVerborgh/6d4ac975f0f36b6d296295dd2160c50f

Our nginx config is here:
https://github.com/wikimedia/operations-puppet/blob/production/modules/wdqs/templates/nginx.erb

Note that this is only the backend stuff, frontend caching is handled by
varnish cluster, which is kinda complex, docs are here:
https://wikitech.wikimedia.org/wiki/Caching_overview

If you see anything that can be improved, please tell.
-- 
Stas Malyshev
[email protected]

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