Strange children’s book

March 9, 2015



2015-03-08 12.24.05


RSA SecurID gone crazy

May 15, 2014


Twenty Billion Dollar note

January 9, 2014

from Instagram:

Don’t lean on me. I’m knackered.

May 7, 2013

from Instagram:

Bath Avenue bridge ready to be taken apart.

from Instagram:

Baking Bad

April 22, 2013

from Instagram:

One million volt particle accelerator

March 17, 2013

from Instagram:

Apollo 10 capsule

from Instagram:


from Instagram:

The Power of Proxies in HTTP Streaming

February 7, 2013

On the 5th of December 2012, Budget Day, we had 59,689 unique viewers who generated 1.85 Gbit/s of traffic and 642 request per second as peak.

varnish_transfer_rates-day varnish_hitrate-day copy


On the 6th / 7th of February 2013, the Government’s all-night session, to pass the Irish Bank Resolution Corporation Bill 2013, had 8,168 unique viewers, who generate 2.2 Gbit/s of traffic and 657 request per second.

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Interesting that 8,000 viewers generate more traffic than nearly 60,000. This is because nearly everyone watching the all night session was watching from home rather than work, meaning more direct requests from viewers to our servers rather than via corporate HTTP proxies that would have cached the requests. A very good demonstration of  the scalability of HTTP Adaptive Streaming.