Olympics viewing on the internet
 

http://www.theregister.co.uk/2012/08/14/bbc_olympics

"In total the corporation shifted 2.8 petabytes of data [...] the flow
peaked at 700Gb/sec."

From a quick measurement of data consumed by the Olympics iPlayer, it
seems to be approx 192kBps

so ...

2.8PB/192kBps represents a total of 508 years of viewing, or 4.4 minutes
per person in the UK.

Olympics viewing on the internet
 

Andy Burns writes:

http://www.theregister.co.uk/2012/08/14/bbc_olympics

"In total the corporation shifted 2.8 petabytes of data [...] the flow
peaked at 700Gb/sec."

From a quick measurement of data consumed by the Olympics iPlayer, it
seems to be approx 192kBps

That figure seems rather low. I watched some Olympic events via the BBC
Sports pages, and in full screen mode it was averaging about 3.5Mbps.

Olympics viewing on the internet
 

That figure seems rather low. I watched some Olympic events via the BBC
Sports pages, and in full screen mode it was averaging about 3.5Mbps.

Agreed. 192 kbps sounds more like a good audio stream. The iPlayer web site
has a speed test function which shows TV options as 500, 800, 1500 and 3500
kbps. The latter is the HD stream you were watching and most viewers with
decent broadband would get 1500 as the norm.

Olympics viewing on the internet
 

Martin wrote:

2.8PB/192kBps represents a total of 508 years of viewing, or 4.4 minutes
per person in the UK.

You forgot all those using proxy servers to view from outside UK.

Unless they're caching proxies, they'll be included won't they? It's all
on CDNs but I presume they give auntie stats for all downloads? Anyway
the more people the fewer minutes per viewer ...

Olympics viewing on the internet
 

MikeS wrote:

That figure seems rather low. I watched some Olympic events via the BBC
Sports pages, and in full screen mode it was averaging about 3.5Mbps.

Agreed. 192 kbps sounds more like a good audio stream.

When I tried it this morning, it was bursting to 240-250kBytes/sec with
close to zero inbetween the bursts, so I did a mental averaging out over
a few minutes to get to somewhere under 200kBytes/sec

The iPlayer web site
has a speed test function which shows TV options as 500, 800, 1500 and 3500
kbps. The latter is the HD stream you were watching and most viewers with
decent broadband would get 1500 as the norm.

Just measured the data during half an hour of watching fullscreen (at
1366x768) and it took 276MBytes, so actually averages out at
157kBytes/sec or 1.2 Mbits/sec

Olympics viewing on the internet
 

MikeS wrote:

192 kbps sounds more like a good audio stream.

Note that I was quoting kBps not kbps ...

Olympics viewing on the internet
 

On 14/08/2012 14:45, Graham Murray wrote:
Andy Burns writes:

http://www.theregister.co.uk/2012/08/14/bbc_olympics

"In total the corporation shifted 2.8 petabytes of data [...] the flow
peaked at 700Gb/sec."

From a quick measurement of data consumed by the Olympics iPlayer, it
seems to be approx 192kBps

That figure seems rather low. I watched some Olympic events via the BBC
Sports pages, and in full screen mode it was averaging about 3.5Mbps.

I have watched full screen and I don't even have 3.5Mbps (or half that!)
so something does not add up (or its adaptive)


--
Cheers,

John.

/================================================== ===============\
| Internode Ltd - http://www.internode.co.uk |
|-----------------------------------------------------------------|
| John Rumm - john(at)internode(dot)co(dot)uk |
\================================================= ================/

Olympics viewing on the internet
 

Andy Burns wrote:

http://www.theregister.co.uk/2012/08/14/bbc_olympics

"In total the corporation shifted 2.8 petabytes of data [...] the flow
peaked at 700Gb/sec."

Ah, from the horses mouth

http://www.bbc.co.uk/blogs/bbcinternet/2012/08/digital_olympics_reach_stream_stats.html

The 2.8PB was done in the busiest *day* not the total for the whole
fortnight.

Olympics viewing on the internet
 

On 15/08/2012 09:04, Andy Burns wrote:

http://www.bbc.co.uk/blogs/bbcinternet/2012/08/digital_olympics_reach_stream_stats.html


The 2.8PB was done in the busiest *day* not the total for the whole
fortnight.

I hope the Beeb are on an unlimited upload data plan with their ISP g


--
Mark
Please replace invalid and invalid with gmx and net to reply.

www.paras.org.uk

Olympics viewing on the internet
 

The 2.8PB was done in the busiest *day* not the total for the whole
fortnight.

Does anyone know if the guys at Telehouse were on a nice little earner
on account of all that extra traffic (like the bonuses for workers on
the tube, buses, trains etc)? I am sure they could have argued extra
traffic must mean they have to take extra care not to trip over and pull
out a peering link :)
--
Robin
reply to address is (meant to be) valid

Olympics viewing on the internet
 

"Robin" wrote in message
...
The 2.8PB was done in the busiest *day* not the total for the whole
fortnight.

Does anyone know if the guys at Telehouse were on a nice little earner on
account of all that extra traffic (like the bonuses for workers on the
tube, buses, trains etc)? I am sure they could have argued extra traffic
must mean they have to take extra care not to trip over and pull out a
peering link :)

There was certainly a lot of effort made and money spent to make sure it all
worked.
There was a complete freeze on non-emergency changes for some time.
SLAs were tightened up on support contracts with extra money spent to
provide on-site spares at key locations and extra engineering staff were
laid on.

Where I work we had some involvement in the preparations.


--
Alex

Olympics viewing on the internet
 

"Andy Burns" wrote in message
o.uk...
http://www.theregister.co.uk/2012/08/14/bbc_olympics

"In total the corporation shifted 2.8 petabytes of data [...] the flow
peaked at 700Gb/sec."

From a quick measurement of data consumed by the Olympics iPlayer, it
seems to be approx 192kBps

so ...

2.8PB/192kBps represents a total of 508 years of viewing, or 4.4 minutes
per person in the UK.


That was one day and only people who watched online and neglects the effect
of caching downstream of the BBC, relay through mirror sites and output on
other providers' web sites (e.g. NBC).

In any event most people watched broadcast - the opening and closing
ceremonies were several Gb each, more if you watched in HD X tens of
millions of viewers [just in the UK].