On 11/30/15, Purodha Blissenbach <[email protected]> wrote: > On 30.11.2015 20:47, Ryan Lane wrote: >> On Sun, Nov 29, 2015 at 8:18 PM, Yeongjin Jang >> <[email protected]> >> wrote: >> >>> >>> I recall that I saw financial statement of WMF that states around >>> $2.3M >>> was spent for Internet Hosting. I am not sure whether it includes >>> management cost for computing resources >>> (server clusters such as eqiad) or not. >>> >>> >> That's the cost for datacenters, hardware, bandwidth, etc.. >> >> >>> Not sure following simple calculation works; >>> 117 TB per day, for 365 days, if $0.05 per GB, then it is around >>> $2.2M. >>> Maybe it would be more accurate if I contact analytics team >>> directly. >>> >>> >> That calculation doesn't work because it doesn't take into account >> peering >> agreements, or donated (or heavily discounted) transit contracts. >> Bandwidth >> is one of the cheaper overall costs. >> >> Something your design doesn't take into account for bandwidth costs >> is that >> the world is trending to mobile and mobile bandwidth costs are >> generally >> very high. It's likely this p2p approach will be many orders of >> magnitude >> more expensive than the current approach. >> >> A decentralized approach doesn't benefit from the economics of scale. >> Instead of being able to negotiate transit pricing and eliminating >> cost >> through peering, you're externalizing the cost at the consumer rate, >> which >> is the highest possible rate. > > While that is often true, there are notable exception, growing both in > scale > and number. > > a) We have campus situations where a large university, company, or > public > agency with tens or hundreds of thousands of peers run a network that > they > pay for anyways, that is needed for peers to connect to Wiki* anyways, > and > that is available to peers at no (additional) cost. While external > traffic cost > are of relatively little concern, quick response times often are, > especially > in classroom situations where up to several hundred students may look > at > the same articles virtually at once.
If we wanted to address such a situation, it sounds like it would be less complex to just setup a varnish box (With access to the HTCP cache clear packets), on that campus. -- -bawolff _______________________________________________ Wikitech-l mailing list [email protected] https://lists.wikimedia.org/mailman/listinfo/wikitech-l
