On 11/30/15, Purodha Blissenbach purodha@blissenbach.org wrote:
On 30.11.2015 20:47, Ryan Lane wrote:
On Sun, Nov 29, 2015 at 8:18 PM, Yeongjin Jang yeongjinjanggrad@gmail.com 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