On Fri, Dec 11, 2015 at 5:19 AM, Viktor Villafuerte < [email protected]> wrote:
> Ladies, gents > > In the Varnish on-line docs (section Tuning) there's a paragraph that > states: > > "We rarely recommend running with more than 5000 threads. If you > seem to need more than 5000 threads, it’s very likely that there is > something not quite right about your setup.." > > Those are my words. 99% installation have a request rate under 2-3000 request per second and 5000 threads is more than enough. We've seen quite a few people adding tens of thousands of threads. I should probably replace with something like a formula. There are no well defined limits wrt capacity but in general people seem to struggle to push Varnish significantly beyond 15Gbps with real with traffic. I have not experienced this first hand and nobody has given me access to a live server with those kind of traffic numbers on it. Also, nobody get particularly specific wrt what breaks. I think it definitely should be possible to reach 20Gbps without any issue, but that is more an opinion than a fact. With synthetic traffic it is no problem reaching 80Gbps. -- *Per Buer* CTO | Varnish Software AS Cell: +47 95839117 We Make Websites Fly! www.varnish-software.com <http://info.varnish-software.com/signature>
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